Architecture Portfolio by J. Chung

Architecture Portfolio Jihoon Chung Department of Architecture & Architectural Engineering Yonsei University

Curriculum Vitae

Education

Volunteer Experience

Yonsei University, Korea

Yonsei Dearm Major Conductor in Yonsei University

Master of Science, Architectural Engineering Feb 2019 – Feb 2021

Architecture-Major Mentor Mar 2019 - Dec 2020 | 1 yr 10 mos

Yonsei University, Korea

Architecture School in Junglim Foundation, Korea

Bachelor of Architecture, Architecture (5–year program) Feb 2012 – Feb 2019

Architecture Tutor Aug 2018 - Oct 2018 | 3 mos

National University of Singapore, Singapore Exchange program for two semesters Jan 2017 – Dec 2017

Experience Building Informatics Group, Yonsei Univeristy Research Assistant & Teaching Assistant Proposed a technical specification framework for 3D concrete printers; Developed a multi-dimensional classification algorithm for housing defesct text data using BERT-based multitask learning technique Feb 2018 - Jan 2021 | 3 yr

ATEAM Ventures, Korea

Jihoon Chung +82-10-8331-3573 j_chung@yonsei.ac.kr www.j-chung.kr

Strategic Planning Staff Planned strategies for marketing & sales and hed a 3D-printer exhibition at KINTEX, Ilsan; Installed a factory to assemble 3D-printer; Managed all customer inquiries, wrote customer manuals, and sent thank-you letters to early customers May 2015 - Aug 2015 | 4 mos

XbarX (X_X), Korea Sales Director & Co-founder Launched beer recommendation app and beer-distribution platform; Got partnership with 218 beer pub, bar, and restaurant in Seoul; Got a funding, US$140,000, from a startup-accelerator May 2014 - Feb 2015 | 10 mos

Donghari in DB Foundation, Korea Volunteer & Scholarship Holder Feb 2016 - Feb 2017 | 1 yr 1 mo

Global Engineering Program in Yonsei University, Indonesia Tutor & Assistant Manager Aug 2016 | 5 days

Seoul Soongduck Primary school, Korea & Seoul Junghwa Secondary School, Korea Speech Tutor Mar 2012 - Jun 2013 | 1 yr 4 mos

Kyoto International School, Japan Korean Tutor Aug 2012 | 6 days

Skill Autodesk AutoCAD Autodesk Revit Rhino + Grasshopper Sketchup Pro 3DExperience Adobe Photoshop

Award 2020 Yonsei Startup Lab Contest, Shared 2nd Prize Yonsei University

Adobe Illustrator Adobe Indesign Python Tensorflow(+Keras) & Pytorch

2018 KICEM Annual Conference, Excellent Paper Award Korea Institute of Construction Engineering and Management (KICEM)

2016 KSEA Architectrual Structural Design Competition, Excellent Award The Korean Structural Engineers Association

2014 The 3rd Chung Ju-young Start-up Competition, Shared 3rd Prize The Asan Nanum Foundation

SPSS

Links issuu.com/archi_j linkedin.com/in/jihoon-chung instagram.com/jihooonchung

Table of Contents

Spatial Network Analysis

Simulation Analysis

Tensegrity

Computational Design, 2019 p. 5

Computational Design, 2019 p. 11

Tectonics, 2019 p. 12

Haebang路 Architectural Design, 2018 p. 3

Liberation Road

Urban City

Urban Design, 2017 p. 19

Architectural Design, 2017 p. 23

Team Project | Chung Jihoon, Choi Unsol, Koo Hazin Contribution | Project Leader, Concept design, Algorithm design

How to Keep Social Connections during Social Distancing? Mangwon-dong, Seoul, South Korea Social Algorithms 7.0 Workshop in Summer, AY2020

This project tackles corona blue phenomena in South Korea, which means depression caused by anxiety of infectious disease, reduced income, and loneliness out of unprecedented social distancing, since the outbreak of COVID-19. To overcome this situation, the proposal redesigns several Mangwon streets to keep social interaction and the safe distance of 6ft rule. The streets are selected for attracting pedestrians from overcrowded places, based on spatial network analysis, on-site survey, and typology analysis. The centrality, particularly betweenness, on each street was analyzed to figure out possibility of floating population. On-site survey was conducted to validate correlation between the betweenness value and real data collected throught the survey. Then, street typology was analyzed focused on street types, road with, pedestrain passage, program at first floor, the number of floors, and betweenness value. Based on the analysis result, New types of streets were proposed to keep social connection during the social distancing.

Mapo-gu office station

Mangwon elementary school Duri children’s park

Dong-gyo elementary school Mangwon yusuji park Mangwon market

Mangridan-gil Han river park

Mangwon station

SITE

Ongdalsaem children’s park

Jandari Children’s park

Sungsan elementary school

Seogyo Children’s park Han river park

Mecenatpolis mall

Yanghwa park Hapjung station Food alley

Overview

Site Images

Introduction

Definition of betweenness

Centrality Analysis (DestinationL: Entertainment) The betweenness Index is the total number of shortest paths (N) at the target location (k) divided by the total number of shortest paths that exist between two nodes (i and j) of a given radius (r).

Mangwon main street

The traget node (k) would have a high betweenness centrality if it appears in many shortest paths to the node that estimates realistic pedestrian flows in the network.

Food alley

On-site Survey method Hapjeong sta. - Mapo-gu office sta. (46 spots) - Counting time sunday 14:30 - 17:00 - Count location betweenness top 10% & bottom 10% - Count method count pedestrian & vehicle in 15 minutes

Site Analysis

from residences from subway stations

The betweenness Index is the total number of shortest paths (N) at the target location (k) divided by the total number of shortest paths that exist between two nodes (i and j) of a given radius (r).

from retail stores

Mangwon station

Straightness

from bus stops

Mangwon market & Mangrdan-gil

Closeness

from Han river park

The traget node (k) would have a high betweenness centrality if it appears in many shortest paths to the node that estimates realistic pedestrian flows in the network.

Betweenness

Correlation Analysis & Developing a Linear Regression Model

Pearson’s rho: Spearman’s rho: Fit line:

0.776 (p-value < 0.001) 0.742 (p-value < 0.001) Y (number of pedestrians) = 1453.5X (betweenness value) + 86.482

Approximation of Betweenness values to Real Data

Before the Approximation

Public Data for Floating Population

After the Approximation

Title Count Min Max Mean Median Variance Std

It is provided by seoul metropolitan government; however, the data was shared into image format. In this image, reltaive floating population was represented by five color indices: red, orange, yellow, gree, and blue. RGB values of the images were analyzed and converted into integer value from zero to four through grasshopper and python algorithm. The values were used as weights to approximate the betweenenes values to real values.

Title Count Min Max Mean Median Variance Std

: Weight before : 5836 : 0.000171 : 0.377275 : 0.009885 : 0.001599 : 0.000615 : 0.024807

: Weight after : 5836 : 0.000076 : 0.51243 : 0.00641 : 0.001976 : 0.02162 : 0.046499

Correlation Analysis

Analysis of Outliers in Pedestrian data

Outlier Analysis

Street Analysis in Mangwon - I: Street Types (Intersection) - R: Road Width - P: Pedestrian Passage - 1F: Program at First Floor - N: The Number of Floors - B: Betweenness Value

Street Analysis

four-way junction

three-way junction

Street Types two-way street

Road width

0 - 5m

Street Redesign Proposal

10 - 20m over 20m

3D Concrete Printing Simulation: Prediction model for printing stability and buildability 3D Conrete Printing Research Project funded by the Ministry of Land, Infrastructure and Trasport of Korean government in AY 2019

This project aimed to develop an algorithm for 3D concrete printing simulation using Rhino + Grasshopper. In 3D concrete printing field, one of the most difficult issues is to predict buildability of concrete mixtures, which means the number of printable layers. If workability of the mixture is too low, clogging can occur in the extruder. In contrast, if the workability is too high, the printed structure can collapse easily. Using theories described in Roussel (2018), the algorithm can predict the rheology of the unit of concrete in every second. As shown in the image below, red color means low hardness of the concrete; while green color means high hardness to withstand the upper printed layers. The algorithm enable researchers to predict buildability without printing experiemnt. Nevertheless, further studies will be required to predict the buildability of complex-shaped structures.

Printing Process

Overview

Main Image

Reference | Roussel, Nicolas. "Rheological requirements for printable concretes." Cement and Concrete Research 112 (2018): 76-85

Redistributing Forces: Variations of Membrane Tensegrity Shells Engineered Design-Architecture & Technology in Semester 2, AY2019

This workshop was conducted in collaboration between Dynamic Assemblies Lab (DAL) of Singapore University of Technology and Design (SUTD) and Context, Architecture & Technology Lab (CATLAB) of Yonsei University. Membrane Tensegrity Shells (MTS) are a new type of tensile structures developed by the DAL. These structures leverage tension to transfer loads; however, indstead of the discrete cables used in most tensegrity structures, MTS feature a membrane which provides two distinct advantages: first, the tensile members simultaneously serve as structure and enclosure, and second, the membrane distributes force in a more redundant fashion, allowing for simpler, self-similar 2D configurations of struts. In this project, three types of approach were developed to make physical hand models.

Method 1. Partial Elimination of Compressive Struts Removal of some struts in the central area of the fabric casued the area to become loose and the overall shell shape to rely upon the rod along the perimeter. The results showed that different direction of curvature depended on the placement of the struts.

Method 2. Flipping the surface direction The overlapping of the strut units played an important role in this method. Since the strut units are not separated but rather overlapped, the boundary between the opposite side of the surface is not a sharp division but a merging of both surfaces' strut unit.

Method 3. Repositioning supporting points When combinded with the previous two methods, repositioning the MTS's stepping points turned out to be a valuable tool in terms of finding forms that could balance between compressive and tensile propeties. The relocation of the points can change the form of the canopies drastically.

Haebang路 : Relationship between Haebang-chon and Yongsan Park Yongsan-gu Sowol-ro 20gil, Seoul, South Korea (Thesis) Architectural Design Studio 7 in Semester 1, AY2018 Yongsan area acts as the center of Seoul. It was the place where the logistics of Chungcheong, Gyeongsang, and Jeolla provices gathered, and it served as the hub of the Korean railway during the Japanese invasion, serving as a base for the invasion of the continent. After the Korean War, Yonsandong, which was a Japanese base, became a U.S. military base, and both roads and subways could not be constructed in the area because it was an area the government or the Seoul Metropolitan Government could not influence. Haebangchon is the only space, where people can reside among six legal dongs in Yongsan area, is the only place Koreans who came from North Korea were forced out, and is a space where Koreans who migrated from rural to the urban area were forced out since the industrialization of 1960s to 1970s. After an announcement, in 2009, of a plan to relocate the U.S. military base, there was a movement to transform the U.S. military base area into Yongsan Park. In 2012, WEST8 Yongsan-Dong Area

and IROJE’s proposal was accepted and plans were made to change Yongsan Park in the long run. Changes in this huge area will bring about significant changes in the Haebangchon, which is right next to them. I suggest building a long road connecting Namsan Mountain and Yongsan Park over the buildings of Haebanchon. For the past few years, residents of this area have fiercely opposed the city’s largescale plans, such as the construction of the “Namsan Greenway”, because their buildings had to be torn down. The road between Yongsan Park and Namsan while maintaining existing buildings can be a compromise between the residents of Haebangchon and the city’s existing plans. The next thing we need to consider is how to build the relationship between the road and the buildings when we make this long road. Furthermore, the most important issue in urban regeneration is the decision of where to renovate and where to preserve. I suggest renovating four of the most symbolic places in Haebanchon: Haebang Church, Shinheung Market, Haebang Ogeori, and the public parking lot. This project focuses on Shinheung Market where renovation is the most urgent. This market is now underdeveloped. Buildings in the market cannot be extended more than four stories above the Namsan Mountain due to construction regulations, and the building owners cannot receive subsidies for renovation from the government, because of their private ownership. To cover the existing monthly rent, they gradually change the market into residential space, and young entrepreneurs try to do business at the building; however, it does not seem easy. The meaning of Shinheung Market, “emerging market”, is tarnishing in the capital and bureaucratic society.

Introduction

Mass Diagram

Existing Facade

Rendered Image: Flea Market

Rendered Image: Skybridge

Rendered Image: Roof Garden

Existing Facade, Rendered Image

BUILDING DIAGRAM

Liberation-Road: New Relationship between Yongsan Park & HBC Yongsan-gu Sowol-ro 20gil, Seoul, South Korea 2017 UIA International Idea Competition

Yongsan-Dong Area

Concept Diagram Haebangchon is the only residential region in Yongsan-Dong. Most of Yongsan-Dong has used as Japanese Shooting gallery or American military base. Haebangchon was migrants’ village and it has been in blind area of administration. In 2016, the american military base started to move to Pyeongtaek. And, the region is going to renovate to a national park. It occupies the most of Yong-san-Dong, and it must be influential to Haebangchon. HBC was isolated in Yongsan-Dong since Japanese colonial era, and it has never been related with other Yongsan-Dong area. ‘Yongsan Park Renovation’ is a opportunity to link with Yongsan-Dong, and it would historically, culturally, economically, and ecologically liberate HBC from isolated situation. It would be ‘Liberation-Road’ in the true meaing of the word.

Connection between Yongsan Park and Namsan mountain

Introduction

Mass Diagram, Rendered Image

Urban Center: A Map of City

Team Project | Chung Jihoon, Lee han Jie, Lin Zhouli, Shi Liwen Contribution | District planning, Block & site section, Urban center design

One-North Area, Singapore Architectural Design Studio 6 in Semester 2, AY2017

Proposal Master Plan, Typology

Block Street Section, Site Section

Mass Diagram

Building Plan

Thank You for Your Consideration j_chung @yonsei.ac.kr +82-10-8331-3573