Portfolio Architecture & Engineering

2024

ERIK WIGH

Architecture & Engineering

PORTFOLIO

CONTENTS. Erik Wigh | Portfolio

01

02

03

TORSLANDABADET

LILLHAGSPARKEN

FISKHAMNEN

Page 3

Page 13

Page 25

Course: ARK218 - Building and Structure

Course: ARK207 - Building and Climate

Course: ARK325 - City Planning

Oct - Dec 2020

Mar - Jun 2021

Sep 2021

04

05

06

IN CONSTRUCTION

RÖHSSKA ATRIUM

COMPUTATIONAL

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Page 39

Page 51

Course: ACEX15 - Bachelor’s thesis

Course: VBB122 - Structural Systems

Course: Personal projects

Dec 2021 - Jun 2022

Sep - Okt 2023

2019 - 2023

01

EDUCATION 2023 -

2019 -

linkedin.com

MSc - Structural Engineering & Building Technology

Teacher and mentor

Erik Wigh

Chalmers University of Technology Gothenburg, Sweden

2000-01-08 erik.wigh@gmail.com +46 793548538 Hi, I am Erik Wigh, an aspiring architect and structural engineer, interested in mathematics, computational engineering and concept development. After a year working as a computational engineer at Buro Happold I have returned back to Chalmers University in Gothenburg to teach and to study a Master’s degree in Structural Engineering and Building Technology. Beside Chalmers, I’ve taken courses in programming, economics and in data science to strengthen my abilities as a designer and engineer. It is here, in the intersection of the three fields; architecture, structural engineering and data science, that I’ve come to acquire an interest and would like to work within.

With my education I strongly believe that I’ve received the tools necessary for shaping a sustainable future. Through effective sustainable solutions and through the understanding of people and the society.

I am now looking for new work opportunities to keep advancing as an engineer and architect.

Let’s get in touch!

WORK EXPERIENCE

2019 - 2022

BSc - Architecture & Engineering Chalmers University of Technology Gothenburg, Sweden 2016 - 2019

HSD - Engineering & Product Design

I started teching mathematics and physics under the non-profit organisation Intize in 2019. 2020-2022 I became a mentor for two students. Since 2022 I have been a TA in the Grasshopper courses at Chalmers.

Jul 2022 - Jul 2023

Internship - Computational engineer Key-role in creating and developing FE-and Revit models. Developed a toolkit for improving the computational workflow of the company.

Buro Happold London, UK

Volvo Car’s diploma for top student of the year Göteborgsregionens Tekniska Gymnasium Gothenburg, Sweden

Consultant - Delivery Coordinator

2019 - 2023

Planning and coordination of exports from Europe to APEC, MENA and South America.

Individual courses at Bachelor’s-level Introduction to Economics, Financial Accounting, Financial Management, Introduction to Data Science, Introduction to C#, Introduction to AI

Jun 2019 - Mar 2022

AB Volvo Penta Gothenburg, Sweden Jun 2019 - Jul 2022

Resturant Employee Serving and preparing food, managing the operation

SKILLS Advanced knowledge:

Mc Donald’s Avenyn Gothenburg, Sweden

Adobe Suite, Rhino, Grasshopper 3D, Robot Structural Analysis, ETABS, AutoCad, Abaqus FEA, Sketch-Up, MATLAB, C#, VBA, Excel

2017 - 2019

Basic knowledge:

Volvo Trucs and Volvo Cars Madrid, Spain & Gothenburg, Sweden

Revit, Blender, IDA ICE, C++, SQL

Internships within Volvo I have had shorter internships within the Volvo Group involving Business development, Industrial robot service and accounting

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01 TORSLANDABADET Course: ARK218- Building and Structure Oct - Dec 2020

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Background

Project brief

This project was introduced during the fall semester of 2020 as a part of two different courses: in the architecture course Building and Structure, and in the engineering course Structural Systems. The purpose of the project was to explore the interplay between building design and its structural framework. How the structure and spaces of the building can be organized into an artistic whole.

In the project’s program, it was specified that the swimming facility should be designed as a local bathhouse following Gothenburg’s strategy for future swimming facilities. The facility, spanning one to two levels with a load-bearing wooden structure, was to be situated in a predetermined area in Torslanda, Göteborg. It was required to provide at least two pool areas: a larger 25-meter pool and a smaller 12-meter pool for recreation and swimming lessons.

The changing rooms were to follow the ”German model,” where all lockers are gathered in one space, while showers are separated by gender. Changing booths were also to be available for changing.

From the architecture course, practical architectural knowledge was developed regarding the functions of the bathhouse and the public building, along with its governing regulations. This also included training the ability to develop a building’s character in detailed elaborations, taking into account the conditions posed by the properties of materials, external influences, and building technology.

The engineering course introduced the concept of a structure. How should it be designed, and how can we verify its load-bearing capacity and behavior?

The project has continued to grow through additional courses, including the course Indoor Environment and Climate Systems, where an environmental and energy program was developed for the building. As I have learned more, through additional iterations, I have also expanded the project’s conceptual design phase to include a wide range of engineering disciplines, such as: dimensioning for serviceability and ultimate limit states, including fire and durability, building physics design, calculation of carbon footprint, specification of requirements related to acoustics, lighting, moisture safety, air quality, thermal comfort, energy performance, Legionella bacteria spread, climate classes, and more. In other words, this project has truly become an opportunity for me to deepen my understanding of the overall design of complex buildings. An opportunity to try to understand the different interests that each discipline brings into a project.

Link to Energy Program Report

Proposal During the first week of the project, a site visit was conducted. The site was in close proximitity to an old airfield, surrounded by industrial buildings. Torslanda, the home of Volvo Cars. It became evident that the conceptual design should align with this industrial context – emphasizing rationality, efficiency, and simplicity, albeit in a modern interpretation. The envisioned structure resembled a rectangular block with high-placed windows, preferably along the ceiling, to allow natural light without revealing the internal activities.

Clear pathways, inspired by the layout of the Volvo factory, were planned, and the structure would adhere to the primitive industrial column-beam system with braced end bays - and so forth. A concept had emerged.

Soon, it was realized that these aspects could be transformed into architectural qualities. The elevated windows served two purposes.

Firstly, they created a sense of security for swimmers not exposed to the surroundings. Secondly, they contributed to the visitor’s experience by allowing them to disconnect from the outside world. Dividing the volume into three parts – two outer sections with communication corridors and a central part with main functions – added an interesting element. It resulted in a clear distinction between dry and wet areas and established a defined flow through the building.

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The building consists of three parts where the outer wings are for communication; one wet, one dry. Large amounts of energy will be needed for heating water. Similarly gyms, offices and MEP rooms will generate heat and might demand cooling. Air is exchanged throughout the whole building in order to increase the Carnot efficiency of the CCHP system. Large windows are placed along the southern facade to increase the solar heat gain. The timber facade has a low albedo value also increasing the SHG. Surplus energy is stored in a BTES-system. Water is pumped up to the roof and heated through solar radiation.

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N

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GROUND FLOOR

A

NÖDUTG.

FÖRRÅD

RELAX

BASTU

BADVAKT

HERRDUSCH

HWC

C

RAMP

FÖRRÅD

E

FÖRRÅD

HWC

SIMLÄRAR- & VÄNTRUM

FÖRRÅD FÖRRÅD

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KASSARÄKNING

KEMIKALIER

OMKL. SKOLKLASS

HWC & DUSCH

SKOFRI ZON

INTRÄDE & CAFÉ

PAUSYTA

DAMOMKL.

HERROMKL.

PERSONALRUM

OMKL. SKOLKLASS

HWC & DUSCH

HWC & DUSCH

KÖK

STÄDCENTRAL

AVFALL & GODSMOTTAGNING

LASTPORT

G

HWC

OMKLÄDNING

OMKLÄDNINGSBÅS

FÖRRÅD

D

TORKRUM

STÄD

UNDERVISNING & REKREATIONSBAD

MOTIONSBASSÄNGRUM

GODSHISS

DAMDUSCH

B

OMKLÄDNING & SKÖTRUM

HWC

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VINDFÅNG

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RELAX

BASTU

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NÖDUTG.

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UPPER FLOOR

A VENTILATION & TEKNIKRUM

FÖRRÅD

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C GYM 360 KVM

FÖRRÅD

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GYMNASTIKHALL 12X22 M

VENTILATION & TEKNIKRUM

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KÖK

G

HWC

VENTILATION & TEKNIKRUM

KONTORSYTA

STÄD

HWC

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Structure The structure predominantly utilizes a timber frame, featuring columns and beams constructed from glulam GL30c. A 6x6 m grid is adopted in most parts of the building. In the main swimming hall, timber trusses with a depth of 2.8 m span 27 m. In other column-free spaces such as the gym, gymnastics hall and the recrational bath hall the spans reach up to 12 m. A preliminary sizing suggests that GL beams 140x1125 mm at c/c 6m are sufficient for these spans. Intermediate floors and the roof are constructed with a composite CLT-Concrete slab utilizing the compressive strength and the mass of the concrete. Shear links should be used to ensure proper composite action allowing for diaphragm action and high bending strength.

A steel section casted into the concrete foundation allows for easy connections with the columns supporting the trusses. The steel profile extends 30 cm from the ground seprating the timber structure from the wet floor. The stability of the structure is ensured through a combination of in-plane bracing and diaphragm action transfered down by vertical bracing in end bays in the short direction and three pairs of CLT shear walls in the long direction. Piling is likely to be needed in order to avoid settlements as the ground consists of clay with bedrock at around 10m under ground level.

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02 LILLHAGSPARKEN Course: ARK207 - Building and climate Group Members: Benjamin Björksell, Richard Heikillä Mar - Jun 2021

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Background Lillhagsparken was another project that came to challenge the interaction between architect and engineer, in this case regarding the interplay between building design, indoor climate, and energy management. How do materials, the construction of the building envelope, window placements, and ventilation affect the perceived indoor environment and energy performance? How can the functions of a residence be shaped according to various people’s needs? What do societal regulations and governing processes say about the design of homes? How can rooms be organized, and what is important in residences? How can ecological, social, and cultural sustainability goals be concretized and realized? The course Building and Climate, in which the project was conducted, took its form through field trips and lectures on the history of homes, brick housing, accessibility, and more.

Simultaneously, I studied the engineering course Building Physics where a building physics dimensioning was eventually carried out for the townhouses.

There was a lot that I took away from this course. Above all, the work with BBR (Swedish Building Code) and the historical development of homes. How a bathtub that is only used once a year can be the most valued aspect of a residence. We also had several interesting discussions about different forms of tenure and the importance of balancing the private and public zones; that a shared gym or workshop accessible to all can be highly valuable. Then there was the discussion about the level of variations. Must each residence have a unique shape and color for it to feel like one’s own, or is it enough to have slightly different curtains in the window? When does mine become mine, and yours become yours?

The residences that were to be designed were expected to adhere to the city plan developed by the City of Gothenburg for the Lillhagsparken area. In groups of three students, row houses in the form of low-energy houses were to be designed in three different sizes: one at 80-100 sqm, one at 100-120 sqm, and one at 120-140 sqm.

Process There were mainly two aspects of the process that had a significant impact on the work and the final result. Firstly, the work was based on a solar analysis conducted in the initial stages of the project. The analysis provided clear guidance on how the houses should be oriented, where windows should be placed, and how the roofs should be angled to maximize solar absorption in case solar panels were installed. Furthermore, a persona was developed for each size of the residences. The personas could be efficiently used to justify design choices.

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0

0,5

1

1,5m

Skala 1:50 0

1

5m

2

Traffic

Residences

The one-way street winds through Lillhagen, following the slope in a natural manner. As the rows of townhouses emerge, the street divides, leading to each pair of row houses. The layout thus allows necessary vehicle traffic within the area, such as waste management, ambulance access, and, for example, delivering and unloading groceries. Along the street, vegetation is present to soften the space for vehicles. In Lillhagen, traffic is secondary; it is possible to navigate, but not actively encouraged.

1:100 10Skala x 100 sqm houses 5 0 x 113 sqm houses 20 10 x 133 sqm houses

10m

42 x Parking slots 4 x Carpool slots 120 x Bicycle slots

Skala 1:400 0

10

20

Each bike shed can store up to 24 bikes allowing for everyday protection and winter storage.

In the periphery of Lillhagsparken lies the local football field where significant battles will take place.

40m

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Community house The community house has a top floor with 16 parking spaces. On the ground floor, there are spaces dedicated to functions considered for the common benefit of the residents. These include a gym, sauna, storage space, workshop, and the Lillhagsparken association’s meeting room. In addition to a staircase, there is also an elevator connecting the two levels.

For disabled people it is never more than 25 m to the closest parking space.

At the end of the area, there is a playground where neighbors can gather and connect with each other, keeping the childlike spirit intact.

At the end of the one-way street, there are 20 parking spaces, four of which are designated for the carpool belonging to the housing association.

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The long-term sustainability of the project is ensured through floor plans that are adaptable in various ways. The residences are designed to accommodate diverse lifestyles.

Feel free to explore the rooms!

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100 sqm GFA - Residence for exchange students Xiao, Shui, and Mei Ground floor

Top floor

The possibility of screening allows multiple groups to stay on the ground floor.

G G

G SOVRUM 8 m2

G

SOVRUM 8 m2

G 2

VARDAGSRUM 11 m

KÖK 20 m2

KÖK 20 m2

F

K

F

Skala 1:10

VARDAGSRUM 11 m

ST ST

ST ST

TT

TT

TOALETT 6 m2 2 ENTRÉ 2 m

ENTRÉ 2 m2

TM

TOALETT 6 m2

SOVRUM 8 m2

G

0,5

1m

On busy Skala 1:15weekdays, breakfast can

be enjoyed at the kitchen counter. guests at the1 kitchen 1,5m 0Dinners with0,5 table are also an option.

Skala 1:50 0

1

Skala 1:100

2

5m

TOALETT 6 m2

G G

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SOVRUM 8 m2 SOVRUM 11 m2

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SOVRUM 11 m2

TM

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0

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TOALETT 6 m2

BALKONG 10 m2

The three students choose to furnish their bedrooms with individual beds and separate desks to create their own private spheres. The wall between the two smaller bedrooms can be removed to create a larger room.

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113 sqm GFA - Residence for the retired couple Jens and Kerstin Ground floor

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BALKONG 5,5 m2

KÖK 18 m2

KÖK 18 m2

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B

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SOVRUM 13 m2

GG G

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SOVRUM 13 m2

ENTRÉ 4 m2

G

VARDAGSRUM 10 m2

TM TT

The smaller bedroom is mainly used by the grandSOVRUM children. By removing the7 m2 wall, there is an opportunity to expand the G Gcommon area. 2

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ARBETSRUM 7,5 m2

ARBETSRUM 7,5 m2

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ALLRUM 8 m2

G G G

SOVRUM 13 m2

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TOALETT 6 m2

ST

TM TT TOALETT 6 m2

ENTRÉ 4 m2

ALLRUM 8 m2 SOVRUM 7 m2

VARDAGSRUM 10 m

TOALETT 6 m2

G

The grandchildren’s gaming console is installed yearround!

BALKONG 5,5 m2

TOALETT 6 m2

G

Erik Wigh | Portfolio

Bottom floor (souterrain)

The spacious corner kitchen offers space for a well-lit dining area. If the weather permits, the meal can be enjoyed on the balcony.

G

ST

SOVRUM 13 m2

G G The large bedroom serves as both a guest room and a rentable space.

Jens has chosen to turn this bedroom into his own office.

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133 sqm GFA - Residence for the Dahlberg family Ground floor

Top floor

BALKONG 10 m2

VARDAGSRUM 11 m2

VARDAGSRUM 11 m2

KÖK 21 m

TM TT G

TVÄTTSTUGA 5,5 m2

TT G

ENTRÉ 4 m2

G

The entrance presents an immediate line of sight through the living room.

The stone flooring and proximity to the laundry room are especially convenient when the kids come home after a day out in the snow.

SOVRUM 8 m2

G

K

TOALETT 5 m2

TOALETT 5 m2

ENTRÉ 4 m2

TOALETT 6 m2 SOVRUM 8 m2

G

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ALLRUM 6,5 m2

G G G

G

G

SOVRUM 13 m2

The flexible room is here used as an additional workspace when Dad Mikael works BALKONG 10 m from home. However, it could just as easily be rearranged into a pantry.

TOALETT 6 m2

2

ALLRUM 6,5 m

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G

FLEXIBELT RUM 12 m2

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SOVRUM 8 m2

SOVRUM 8 m2

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ST

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K KÖK 21 m

TVÄTTSTUGA 5,5 m2

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ST

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TM

BALKONG 10 m2

With a family room at the heart of the upper floor, the children have easy access to the TV corner.

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On the upper floor, there are two balconies, allowing for sun exposure at different times of the day.

G G G SOVRUM 13 m2

FLEXIBELT RUM 12 m2

2

BALKONG 10 m2

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The white-washed tongue-and-groove paneling that adorns both the inner walls and ceiling of Jens and Kerstin provides a modest, lively expression and invites the easy placement of paintings and shelves anywhere

In the Dahlberg family’s kitchen, there is space for both everyday activities and elegant dinners. The exposed brick canal wall and oak parquet create a tactile connection to the house and nature that feels grounded.

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bläck dras över plywoodskiva, vattenavledande remsa fästs under språngbläck

plywoodskiva avlsutas efter 600 mm

dubbelfalsad planplåt takpapp 30x95 mm råspont 25x38 mm ströläkt 22x45 mm regel c300 410 mm isolering ångspärr 22 mm glespanel c300 13 mm spårpanel

drevning, bottningslist, lufttätning med bruk

15 mm träparkett 3 mm stegljudsmatta 150 mm pågjuten betong 50 mm förspänt plattbärlag 120 mm installationsutrymme 22 mm glespanel 13 mm spårpanel

108 mm tegel (frostbeständighetsklass F2)

30 mm luftspalt 30 mm vindtät mineralull 250 mm mineralull 10 mm puts/tunnputs 108 mm tegel

prefab murstensskift över muröppning

hammarband förankras c600 med kemankare, gummipackning läggs under hammarband, ångspärr kläms mellan hammarband och regel som anpassad på plats, takås fästs med vinkeljärn och ankarskruvar

lättklinkermur armeras med bistål i liggfog, rostfri kramla muras in i stötfog

brukssträng i lutning, GF-kombiplåtvattenutledande membran

singel

10 mm puts 120 mm lättklinkerblock 2x100 cellplast 200 mm lättklinkerblock 13 mm träpanel 28 mm luftspalt 95 mm vindtät mineralull 250 mm mineralull 10 mm puts/tunnputs 108 mm tegel

glidskikt butylgummi

markisolering

betongsula med armering

drevning, bottningslist, lufttätning med bruk

fiberduk 150 mm tvättad makadam 4x100 mm cellplast 100 mm betongplatta med armering ångspärr 11 mm ekparkett

15 mm träparkett 3 mm stegljudsmatta 150 mm pågjuten betong 50 mm förspänt plattbärlag 120 mm installationsutrymme 22 mm glespanel 13 mm spårpanel

22 108 mm tegel (frostbeständighetsklass F2)

30 mm luftspalt 30 mm vindtät mineralull

Building physics A starting point in the project has been to create sustainable homes that provide conditions for effective energy management. In parallel with the design of the townhouses, a building physics analysis was conducted, resulting in a technical report. The technical report examined the building’s airtightness, thermal comfort, moisture safety, and energy management based on developed detailed sections. Overall, it was found that the construction of the townhouses provides favorable conditions for airtightness, thermal comfort, and moisture safety.

Further conclusions that could be drawn were that the townhouses significantly meet the requirements set by the National Board of Housing, Building, and Planning (Boverket) in terms of energy demand, primary energy value, and average U-value. According to the FEBY specification, the building meets the FEBY Silver classification, which previously corresponded to the mini energy house class. In a scenario where solar energy from solar panels is credited in the energy balance, the townhouses can be considered to be energy-plus houses.

Energy declaration VFT

19,9

W/m2Atemp

EPpet

58,7

kWh/m2Atempår

Tidskonstant

6

dygn

Balanstemperatur

14,9

°C

Euppvärmning

3300

kWh/år

Ebea

5415

kWh/år

Qeffektbehov

2,997

kW

Link to report - OneDrive PDF (Expires 26th of February) Erik Wigh | Portfolio

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Solar radiation and daylight analysis As part of the pursuit of energy-efficient and sustainable buildings, the way the townhouses harness solar radiation has been thoroughly examined during the design process. The shed roofs of the townhouses not only provide character and an architectural expression but also aim to facilitate the installation of solar panels. To quantify solar radiation, a solar analysis was conducted using Grasshopper3D. From this study, an understanding was established of how the house’s rotation in relation to the north affected the potential solar energy gain from solar panels. Furthermore a daylight analysis was performed aimed towards gaining an understanding of how window sizes and placements would affect the average daylight factor (during overcast sky) and the illuminance inside the townhouses.

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03 FISKHAMNEN Course: ARK325- City Planning Sep 2021

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Task The area around Fiskhamnen is not only an important cultural site but also a crucial place for economic activities in Gothenburg. Today, there are significant challenges with subsiding ground, inadequate premises, and floods. The goal of the project is to create a new district where businesses are integrated with the city, attractive public spaces are offered, and spatial connections to surrounding districts are facilitated. The location can have a significant impact on the entire city of Gothenburg with its excellent position and has the potential to enhance Gothenburg’s identity.

Proposal

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Areas Total ground area: 181 000 sqm Gross area residential: 261 000 sqm Gross area offices/businesses: 81 000 sqm Exploitation: 1.88

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The proposal aims to create an urban space that connects the urban qualities found along, on the one hand, Lindholmen’s quay, and on the other hand, Majorna’s block structure. The new Fiskhamnen is an extension of Majorna and a reflection of Lindholmen, where private, uniform, and homogeneous block houses gradually transition to more open and independent building structures with good views and attractive public spaces in between. Through two parallel streets that end in plazas, a natural connection to existing buildings is created, and an axiality that gives the area its character is formed. The streets offer beautiful sightlines and invite movement in the area. An orthogonal main street that runs through the entire area defines the secure grid system and allows for high exploitation without compromising the generosity of the courtyards.

The relationship between the private and public realms is a significant challenge in the project. Elevated courtyards with blocks of a more closed nature offer a life outside the city within the city.

N

Residential Existing buildings Offices

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Building Structure

Infrastructure

The area is defined by a large variation of building structures. The buildings situated in the south are mainly bigger blocks in a grid system. There are also examples of more restrained exploitation with houses surrounded by greenery, mainly located in the eastern part of the area. Comparing the block houses in south and north a more closed caracter can be identified in the south. In the northern part, alongside the river, the building blocks tend to be more open.

An important condition for the project is transforming the heavy traffic road Oscarsleden into a boulevard.

Public transportation with its belonging stops is mostly located along Karl Johansgatan, a road parallel to Oscarsleden. Two connections to the south are made possible through Såggatan and Djurgårdsgatan.

Bike lanes and walkways are available along Oscarsleden and it is possible to connect existing ferry lines to the area in numerous locations.

Greenery

Noise and sightlines

Larger areas of greenery are mostly found in hilly terrains with lower exploitation. In more flat areas vegetation is mainly found in the courtyards. There is a general lack of vegetation in the project site.

Lines of sight are visible through Såggatan and Djurgårdsgatan which connect the area with Majorna.

The space alongside the quay makes room for different views, e.g towards Bockkranen (landmark).

Oscarsleden is today a major source of noise, by refurbishing it as a boulevard the area will be prone to less noise. The Stena Line terminal is also a noise source.

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Street sections

4,5

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6,4

1,2

4,5

6,4

OSCARSALLÈN 29 M

The main street that runs through the entire area, enabling movement from west to east, constitutes a crucial part of the neighborhood.

The block houses are closed towards the main street, allowing access to the courtyards only through private gates. Businesses are situated at street level, primarily at intersections. Parking, including a bus stop, is available along the street. Residential parking is located underground and accessed through cross streets.

2,52

6,42

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HUVUDGATA 15,4 M

Section A-A

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04 IN CONSTRUCTION Course: ACEX15 - Bachelor’s thesis Group Members: Toste S Dahlstedt, Kathrine Schumacher Critics: Martha Tsigkari - Fosters & Partners Dec 2021- Jun 2022 Erik Wigh | Portfolio

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Background This project was a part of my final bachelor’s course at Chalmers. A course where interdisciplinary collaborations are tested by pairing each group of two Architecture and Engineering students with a master’s student from Applied Acoustics (Sound and Vibration). The aim of the project was to develop a proposal for a building and submit it to the annual student competition announced by the Acoustical Society of America (which, incidentally, my group won).

The challenge for this year’s competition was to design a theater building with seating for 700 guests. The program allowed for considerable freedom, with only some requirements for spaces and minimum areas. The most concrete limitation was that the theater should be approximately 61 meters away from a highway, resulting in specified noise levels. In addition, the auditorium needed to be designed for unamplified speech but have the flexibility to adjust acoustics for musical performances. To provide the project with clearer parameters, our mentors also imposed some additional constraints. For instance, the proposal should primarily be constructed in timber, have a clear focus on sustainability, and be ’simple’ to construct by the local community.

The course involved many different sessions of workshops, study trips and lectures all forming the basis of the project.

We even had lectures on airplane engines. An important lecture that had large influence on the project was a guest lecture by Sir Peter Cook. We asked him for advice - at which he answered ”have fun - it’s not fun to be boring”.

Toste (the other A&E-student) and I liked that answer - we had to draw colorful ventilation monsters just as what you find in Cook’s paintings.

I had barely spoken with Toste before the project. We both looked forward to work with each other. Both of us enjoyed computational workflows, programming and Grasshopper.

The fun part is that we almost exclusively worked analog, which was the complete opposite of what everyone probably expected, including ourselves. Instead of developing complex programming scripts, we were in the workshop building timber arches or smearing paint on paper. A playground.

Another thing that also needs to be highlighted is the kind of discussions we had and the references we mentioned during our very first meeting. Richard Coray’s scaffolding for Robert Maillart’s Salginatobelbrücke, Schlaich Bergemann’s spooke-wheel roofs, prestressed arches with references to both Padre Pio in San Giovanni Rotondo and Jürg Conzett’s Wasserfallbrücke. It is clear that our discussion started with an idea of a structural concept.

How should the building be constructed? How should the building respond to the site, and what are the consequences of building it in timber?

Concept What if you leave the scaffolding in place? If the concrete molds are reused and used as flooring? If pallets are reused to build the grandstand, and the corks from the bar are used as acoustic elements? By using small and recycled elements, primarily made of wood in a modular system, large parts of the building can be constructed by the community. As one approaches the site, the theater gradually transforms from a sound-absorbing pavilion with one-dimensional elements in the form of a dense forest of wooden pillars and vegetation into a fully constructed three-dimensional theater building. Color is added to enhance the playful expression and demystify the theater.

The colors are also applied to MEP equipment, such as ventilation shafts, highlighting them instead of concealing them. Scaffolding becomes part of the architecture, helping to screen sound and light while serving as a natural communication path through the building. The auditorium is centrally placed, surrounded by body volumes that are less sound-sensitive.

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Concept development - early sketching

Erik Wigh | Portfolio

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32

Ground floor

First floor

Second floor

6 15

11 5

26

5 12

24

5 7

7

5

8

3

3

26

5

8 8 5

5

10

6

5

19

23

16

18

19

11 5

6 9

14

5

2

5 10

17 17 17 17

13

21

26

19 5

21

5 5

20

5

21 21

21 6 22

1

4 25

1 Lobby (350m2) 2 Box Office (24m2) 13 Lobby (350 Front of sqm) House Restroom 2 Box(Men Office62m (24 2sqm) , Women 81m2, 3 Front of House Restrooms (Men 62 sqm, Unisex 6m2) Women 81 sqm, Unisex26 sqm) Cloakroom (20m ) 44 Cloakroom (20 sqm) 5 Restroom 5 Restroom Storage/Janitor 66 Storage/Janitor ClosetCloset 77 Dimmer/Audio Rack Room Dimmer/Audio Rack 2 (46Room sqm total) (46m tot) Noise Criteria

Erik Wigh | Portfolio

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30

8

Lighting/Audio Storage/ Repair Room (84m2 tot) Storage/ 98 Lighting/Audio Audio Mix Position Repair Room (84 total) 2 tot) 10 Costume Shopsqm (164m 9 Audio Mix Position tot) 1110 Costume Scene Shop (435m2total) Shop (164 sqm 2 12 Workshop (30m 11 Scene Shop (435 sqm)total) 2 13 Painting Room 12 Workshop (30 sqm)(22m ) 14 Resturant 13 Painting RoomKitchen (22 sqm)(76m2) 14 Resturant Kitchen (76 sqm) 15 Truck Dock 15 Truck Dock 16 Green Room (48m2)

17 Office 18 Conductors Dressing Room (40m2) 17 19 Office Chorus Dressing Room (77m2) 18 Room2(40 ) sqm) 20 Conductors Control Dressing Room (28m 19 Chorus Dressing Room (77 sqm) 2 21 Solo Dressing Room (56m ) 20 Control Room (28 sqm) 2 22 Solo Rehearsal Room (180m 21 Dressing Room (56 sqm) ) 23 Rehearsal Wig and Makeup (29m2) 22 Room (180 sqm) 2 ) 24 Wig Prop 23 andPantry Makeup(14m (29 sqm) 24 Pantry (14Café sqm) 25 Prop Container 25 Container Café 26 Auditorium (306m2)

16 Green Room (48 sqm)

Noise Criteria

15

40

30

26 Auditorium (306 sqm)

15

Heavy sound isolating doors are required in the auditorium and other noise sensitive spaces. For the latter an indoor double wall construction is additionally

Halls and Corridors

Halls and Corridors

Box-in-box Construction

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HVAC A 280 sqm MEP room is located in the basement. Heavier and louder equipment is placed under the stage workshop. All electricity and fresh air are distributed horizontally and vertically through the building from here.

Communication The building has four public and three staff elevators. The staff elevators are 3x3m, centrally located in the building. Scenography can be easily transported through the building as all main corridors are at least 3m wide.

The main stage has two 5m wide stage wings and a transverse passage behind the stage. The 10x8m opening to the stage workshop can be closed by a built-in sliding door. The orchestra pit, which can be raised and lowered, is made accessible through 2.5m wide openings on each side.

Social and Economical Sustainability Apart from theater activities, there are additional potential sources of income. The interior in the lobby can be moved to create a more open space for various events. A restaurant and an outdoor café, as well as rentable workshop spaces and rehearsal rooms open to the public, are located near the lobby.

Acoustics and Sound Control Established acoustic goals are achieved through double-layered walls specifically designed to meet the NC30 criterion in the lobby. Heavy sound-insulating doors are required for the auditorium and other rooms sensitive to high noise levels. Most spaces (including dressing rooms) must not have a reverberation time exceeding 1.0 s. Exceptions include corridors, bathrooms, and workshops. Office rooms allow RT up to 0.8 s. The auditorium and rehearsal rooms are constructed as box-in-box structures.

To achieve the required acoustic climate (NC15), a mass is required. This is achieved by stacking wooden lamellas loosely on top of each other to keep the ratio between mass and flexural rigidity constant, ensuring that critical frequencies are kept in the higher frequency spectra.

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Kathrin Schumacher, Toste Skånberg Dahlstedt, Erik Wigh Chalmers University of Technology

MER A 280m2 mechanical equipment room is placed in the cellar. Heavier and more noisy MEP equipment is placed underneath the stage shop, close to the chiller outside. From here, electricity and fresh air is supplied to the building.

Communication

The building is equipped with four public and three staff elevators. The main staff Erik Wigh are | Portfolio elevators 3m x 3m, placed in the center of the building. Horizontal transportation of scenery and bigger

Ground floor

First floor

Second floor

6 15

5 7

11 5 5

12 13

26

24 7

5

8

8 8 5

3

3

10

26

5 5

6

5

19

23

16

5

18

11 17 17 17 17

21 21

26

19 19

5 10

5

5

21 21

21 6

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Auditorium

Pallets

Convex Shields

Acoustics Panels

The heavy upholstery seating on ground level is raised by stacking recycled wooden pallets. The top layer is covered by a sheet of plywood and a rubber mat reducing step noise and vibrations without adding absorption. Lighting and ventilation is integrated in the pallets underneath the seats.

Convex reflective shields placed on the balconies and suspended from the ceiling are manufactured simply by using hygroscopic shrinkage. This way they can be transported easily and bend into shape on site while drying.

Acoustic panels are asymmetrically assigned along the auditorium walls.

Reflective surfaces of plywood, Helmholtz diffusers and absorbers built with old wooden elements and high freq. absorbers built with reused wine corks are examples of feasible solutions that have the possibility to integrate light and ventilation.

A scaffolding system surrounds the shoebox auditorium on which varied acoustic panels and balconies are mounted. It also houses communication areas in and out of the auditorium. The holistic design philosophy is moved inside by reusing pallets for leveling and panels of recycled materials similar to the ones on the façade.

Additionally, the colors of the exterior are replicated on some of the panels resulting in an atmospheric but still playful, inviting and untender space.

Variable Acoustics To facilitate both theater and musical performances the acoustic environment is variable in different ways. Most importantly there is an inner roof with trapdoors that can be rotated to give the space a greater volume from around 2900 cbm to 4800 cbm increasing the mean reverberation time from 0.8 s to 1.2 s. Furthermore, the panels can be changed to make the surfaces more reflective, diffusing or absorbing. Electroacoustic equipment is placed in a way to cover the audience area in case amplified sound is required.

Acoustic Properties The target values for the auditorium at minimum volume configuration are: - RT = 0.7 - 1.0 s - ITDG < 21ms - less than 7.2 m difference between direct and reflected sound - G ≈ 10 dB - Maximum distance between source and receiver: 20 m - C80 > +3 dB, C50 > -2 dB - BR ≈ 0.9 - 1.0 RT is calculated without taking any additional absorbing material besides seats, air and stage openings into account.

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05 RÖHSSKA ATRIUM Course: VBB122 - Structural Systems Group Members: Wilma Hultgren, Simon Jobäck, Jacob Engström Sep - Oct 2023

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Background This was my first project as a Master’s student at Chalmers. The aim of the course Structural Systems was to explore the early concept development stages of structural engineers. How should the structure be designed? How does it behave, and how do we evaluate its performance? What about durability, maintenance, and the life cycle of the structure? My group was tasked with designing an atrium roof, enclosing the courtyard between the Röhsska Museum and the School of Design and Crafts in Gothenburg. Another part of the assignment was to design a café, a bomb shelter, and a staircase between the two buildings (these parts have been left out in this portfolio). A conceptual design proposal for the structure, including hand calculations, was submitted to a jury with representatives from different engineering offices. We shared the first price together with another group.

Process One of the key purposes of the course was to explore typical processes used by structural engineers within the concept design phase. What are the interests of a structural engineer, and what parameters can we affect? The project developed from a pre-study containing an identification of clients’ and users’ needs, site conditions, and the intention of design. We then developed 12 concepts (5 of which are shown to the right), evaluated and iterated until one proposal remained.

This concept was further refined with detailed drawings and preliminary sizing of structural members.

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Concept 1 - Pillar Beam

Concept 1 - Pillar Beam Erik Wigh | Portfolio

Concept 4 - Truss Cantilevers

Concept 8 - Voronoi forest

Concept 2 - Cantilever Forest 41

2nd Concept Evaluation

The concepts were evaluated in two phases until one final concept remained.

Concept

1:Pillar beam

2: Cant ilever

Evaluat ion crit eria

W eight fact or

1: Bu ild in g cost

12,25%

4

4

2: M a in t en a n ce cost

5,25%

5

4

3: M a t eria ls

14,00%

4

5

4 : Con st ru ct ion m et h od s

3,50%

4

4

5: Con st ru ct ion Tim e

8,25%

5

4

6: Ea se of cost ru ct ion

11,00%

3

5

7: Noise level

2,75%

4

5

8: Sp ecia list exp ert ise

5,50%

5

4

9: St ru ct u ra l d ep t h

4,50%

2

3

10 : Flexib ilit y

7,88%

3

2

11:W a t er d ra in a g e

6,75%

5

3

12: M a in t en a n ce

3,38%

5

4

13: Sh a p e a n d form

7,50%

3

4

14 : In n ova t ive d esig n

7,50%

1

3

Tot al

10 0 ,0 0 %

3,7125

3,9325

Grade

1: Pillar Beam

2: Cantilever Forest

Easier connections and less time to erect.

Common structure that allows for bigger tolerances. Cheap to build

Smaller and lighter elements during assemble.

Angles of cantilevers can be adapted to fit the perimeter walls. In-plane stiffness

Dull design. Heavy primary beams, need to be spliced and joined on site after erection – requires temporary work.

Difficult to adapt to site

Higher maintanence cost due to crevasses that collects dirt. Needs moment stiff connections.

Many connections at odd and unique angles

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Cantilever Forest At its core, the concept envisions a series of robust yet intricately designed columns, reminiscent of the sturdy trunks of trees. These columns are strategically positioned to support the weight of the atrium roof, mirroring the role of roots firmly anchored in the ground.

As the columns ascend, they gradually evolve into a network of branching elements, gracefully stretching outwards to form a canopy-like structure overhead.

Steel plates are spread out to increase the lever arm and to achieve a rigid connection

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Secondaries are mounted with joist hangers, pinned connection

Steel columns are bolted into the concrete foundation with steel rods.

A layer of grout is added under the baseplate. Shear lugs may be added to aid transfer of shear forces.

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44

3250

A

3000

B

Glass wall

3500

C

3000

D

3000

E

F 3000

CAFÉ BUILDING

3000

G H

3050

I

J

1 2 3710

Erik Wigh | Portfolio

4

3 4000

6

5 4000

4000

8

7 4000

4000

9 4000

2800

12

11

10 2125

2125

13 2125

15

14 2300

2125

16 2125

17 2125

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Column-Beam Conection

M

360

M

CHS 168/10

200

Achieving a rigid, moment stiff, connection between columns and beams is essential for the global stability of the roof. Numerous strategies have been developed, assessed and discussed during the concept design stage.

90

165

Utilizing advanced steel fabrication techniques, allows for custom-fitted connection plates that enable a seamless integration between column and beam. The complexity of the forces at play should be recognized in order to achieve a robust and effective connection that resist the bending and shear forces.

At this stage, further testing with FEA should be conducted before a final verdict can be given.

Some proven concepts that reminds of 1-4 are: 1) Cobe Architects – Charging stations, 2) Broxa – Francis Combe Canopy, 3/4) Tacoma Dome

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Columns Three different material configurations have been considered for the design of the roof columns: composite steel and timber, steel and concrete.

In conclusion, both the composite type and the pure steel type would be feasible to build.

It is mostly a matter of which direction the clients wants to take and a matter of assuring the performance of the moment stiff connection between column and beams. The steel column would be simple to erect and assuring a moment stiff connection in both ends of the column is possible. It would provide a more slimed/slender look to the columns. On the other hand, the composite timber-steel column rhymes better with the canopy concept.

The steel only section was selected for further assessment, but the composite section is still valid if the client prefers it.

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Steel Standard CHS or SHS section High capacity in bending and compression. Members can be made slender and have a smaller footprint. Design flexibility and redundancy, easy connections.

Expensive initial costs. May have large environmental impact. Needs special treatment for fire resistance

Composite steel/timber Standard CHS profile in centre connecting to four tapered GL colums (see concept 1 on previous slide) Tells the story of the canopy concept. Interesting finish and aestetical appeal.

Efficient use of materials

Higher cost and more complicated erection with more elements and connections. Higher maintanance requirements

Concrete Circular or rectangular reinforced in-situ concrete section Durable and fire resistant.

High compressive strength.

Fairly small footprint in plan.

Redundancy, moment stiff conections can be assured to foundation Prone to cracking. Time consuming and labour intense construction process.

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Roof Panels Three different roof panel solutions were considered: glass, ETFE and thin wall polycarbonate sheets.

In the end we opted for the use of standard glass panels. A key reason for this choice was the stiffness and high bending strength that is essential to allow for easy maintenance work on the roof. It’s a common building material, highly available with different G- and U-values which may become important when establishing a good indoor climate. Another reason is the good durability, with second to none maintenance requirements, which is a request of the client. Although it might be more expensive and have a greater impact on the environment, there is a great aftermarket for glass windows, expanding the life span of them.

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Glass

ETFE Cushion

Two or three layered glass with hardened and laminated glass panes. Span 2m

Air pressurized cushions with ETFE fabric/foil. Can span up to 4m

Most common solution. G and U values can be chosen at wide available ranges.

Two-way spanning, stiff and good bending strength.

Durable and elegant

1% weight of standard glass.

Can be sewed into any irregular polygon. Cost effective in long-run and small environmental impact, effective use of material

Fragile during transport and erection. Heavy panels that puts more loads on the structure. Expensive and large impact on environment

Needs constant pressurization from AHU’s, sensitive to leakages and punctures. No in-plane stiffness and little bending strength if walked on.

Needs maintanance. High initial cost

Polycarbonate sheet Thin wall polycarbonate sheets. Span 1m

Leightweight and cost effective. Ductile and higher impact resistance

Lower thermal insulation.

Prone to scratching and discoloration when exposed to exterior climate

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Beams Three different materials were considered for the main beams of the roof structure: timber, steel and concrete.

In the end we opted for the use of timber beams. There are two main reasons for this choice, firstly timber would have less environmental impact, secondly the use of timber rhymes with the architectural intention of an outbranching “tree-like” canopy. Timber offers a natural and warm aesthetic, adding character and charm to the structure. Furthermore, it is also light weight which simplifies the construction and reduce the need of heavy equipment. As the spans of the roof are kept short, smaller resistance requirements are put on the beams, hence making timber feasible.

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Connection Detail The roof will be positioned below the lower ridge of the adjacent buildings and connect to the surrounding walls. It is important that no weight or load is transferred from the roof onto the existing buildings. To achieve this, it is essential to incorporate an expansion joint along the perimeter of the roof.

Given that the edge beam cannot be directly affixed to any of the walls, there will naturally be a gap between the roof and the facades. It is crucial to seal this gap to fulfill the functional demands of the building envelope, necessitating the establishment of a connection at this critical joint.

Attachment of roof and sealant sheet to existing facade.

Spliced roof sheet as well as extra sealant sheet provided to allow movement of both existing and new structure without risking water damage.

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06 COMPUTATIONAL Personal projects 2019 - 2023 Erik Wigh | Portfolio

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Hydrostatic Masonry Bridge May - June 2022 Credits: Emil Adiels, Chris Williams, Fredrik Boman

Scan to watch summary video! https://vimeo.com/738324107

Description: This project was a part of the scientific paper ’The construction of new masonry bridges inspired

by Paul Séjourné’ written by Emil Adiels and Chris Williams (2021). Emil, who has been a close mentor to me ever since, reached out and asked if I wanted to help converting theory into practise. From the governing boundary value problem I helped writing Grasshopper scripts for the manufacturing of the bridge. Together, Emil and I held a workshop with the Architecture and Engineering students (year 3) at Chalmers in June 2022.

We have since this workshop built three more bridges with different section profiles and have published an abstract for the 2024 conference held by The International Association for Shell and Spatial Structures (IASS) Link to research paper: https://www.researchgate.net/publication/354219913_The_construction_of_new_masonry_bridges_inspired_by_Paul_Sejourne

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Concrete shell with flexible cable net formwork Sep 2023 - Dec 2023 Credits: Emil Adiels, Fredrik Boman

Digital Process

Description:

Step 1 - Target shape Using Galapagos the initial Hypar surface was modified until minimum deflections was achieved in Karamba3d

As a part of the first course given in Parametric design at Chalmers we have a tradition of ending of with a workshop. Fredrik and I had a look at the research paper ’Design process for a prototype concrete shell using a hybrid cable-net and fabric formwork’ by Diedrik Veenendaal and Philippe Block (Bloch Research Group - ETH Zürich) (2014) and descided to create our own prototype. Together we created a Grasshopper script, very much following the procedure presented in the paper, and then with the help of the students we built the prototype during two workshop days in December.

Step 2 - Cable Net Cable net was adopted to principle curvature and converted into geodesics. Using Galapagos the curves were moved to allow for a more uniform grid size.

Step 3 - Cutting patterns The cutting patterns for the fabric were alligned with the cable net.

Surfaces are unrolled and flattened through a C# script

Step 4 - Finding loads Voronoi cells were used to estimate the tributary are of each cable section

The shell has been casted and the concrete has cured. We have not yet removed the formwork.

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Step 5 - Force density method Linear and non-linear FDM was used to find suitable pre-stress forces inside the cable net (i.e the forces needed before concrete is casted in order to have correct target shape). Solved with least square method.

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CBank

Scan to watch demo! https://youtu.be/OwSFkktAZTE

May 2021

Description: CBank is a Universal Windows Platform (UWP) application written in C# and XAML. The application lets fictive customers of the bank create bank accounts in which money can be stored and invested. The customer application makes use of a login form in which the user can register a new customer account or login to already existing accounts. The customer application was deliberately designed for an aspect ratio simulating a mobile screen (400 x 800 pixels).

The CBank application allows the customer to create bank accounts of types: savings account (with a monthly interest rate) and ISK-account (short for the Swedish word Investeringssparkonto). With an ISK-account the user can buy equities (funds and stocks) which price fluctuations are simulated over time. Furthermore, the application enables the user to insert, deposit and make internal transactions as well as viewing transaction history. The CBank solution file includes a link to a SQLite database that stores the application data.

Login screen

Home screen

Store screen

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Parametric facade

Sun shade panels

Description:

The script generates four types of sunshade panels. The panel aperture is adapted to the distance and angle to an attractor point (seen as the sun).

Nov 2020 - Feb 2021

This project was a part of the course Virtual Tools in a Material Culture ARK385 (November 2020 – February 2021). The aim of the project was to design and generate an adaptive solar shading system for a facade using Grasshopper3D. The design of the facade was optimized in respect to a comfort analysis and a structural analysis.

Defining scope Variables such as rotations, height, width and depth define the buildings orientation and dimension. In order to allow for an adaptable facade three attractor points are used (MD Sliders). The facade surface is constructed from a grid of points which have been offset in regard to their distances from the attractor points. The distances are mapped in respect to a function defined by user (parabolic, trigonometric, non linear etc) which defines the amplitude of the offset.

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Structure The script generates a space truss structure that supports the facade panels. The space truss has a variable structural depth and is based on the quad panel division of the facade.

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Comfort analysis

Structural analysis

Optimization

Using generated representational buildings of the site the interior and exterior environment was analyzed based on solar comfort. How the placement of the building affected the amount of sun hours on the ground, and how the placement of the building affected the amount of sun hitting each floor inside the building was analyzed. Furthermore, the views to the outdoors were evaluated.

A structural analysis of the space truss was performed.

Two uniform load cases were applied; dead load and wind load. The wind load was calculated using data from an epw file. The study was conducted using Karamba FEM analysis. Dead load and wind load was applied on the structure, simply supported along edge boundaries.

With respect to a set of genomes, including rotation of building and three different facades, multiple designs solutions were generated using Colibri. The design solutions were evaluated in regards to total deformation, view to outdoors, indoor sun hours and reaction forces in normal direction on the facade.

DesignExplorer was used to evaluate the solutions.

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Erik Wigh | erik.wigh@gmail.com