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作品集 [ Keisuke OTA ] Architecture Portfolio Master of Engineering (1st Year Student) Department of Architecture Graduate School of Engineering the University of Tokyo dom0d0mo.11@gmail.com

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CONTENTS Architectural Works Nov 2010 - Sep 2012

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TRAVELING HOTEL

LIFETIME STUDY CENTRE

CONVERSION OF HISTORICAL HERITAGE

JUNIOR HIGH SCHOOL

University and Locality

Bricolage City

Zero Structure

Integrated roof

04 - 09

10 - 17

18 - 21

22 - 25

LITTLE LIBRARY

ELEMENTARY SCHOOL

CITY HOUSE

WORKSHOP

Liverary

Learning the city

N House

Context and Craft

26 - 31

32 - 35

36 - 39

40 - 45

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TRAVELING HOTEL inspiration HOTEL competition July 2012 5


Universality and Locality

These two concepts about architecture never at odds with each other.UnitĂŠ d'Habitation, one of masterpieces of modern architecture, travel all over the world and change its own form flexibly.

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Naroy Fjord - Norway

Kyoto - Japan

Temperature(℃)

This part of Norway has cold and dry weather and much snow in wintertime. Because of Norway’ s high latitude, there are large seasonal variations in daylight (like the midnight sun). In Norway there are many Christian church, especially around the site.

Precipitation(mm)

30 25 20

200 180 160

30 25 20

200 180 160

15 10

140 120 100

15 10

140 120 100

5 0 -5 -10 -15 -20

80 60

1 2 3 4 5 6 7 8

9 10 11 12

40 20 0

Kyoto has a humid subtropical climate, featuring a marked seasonal variation in temperature and precipitation. With its 2000 religious places- 1600 Buddhist temples and 400 Shinto shrines, as well as Japanese traditional architecture, it is one of the best preserved cities in Japan.

5 0 -5 -10 -15 -20

80 60

1 2 3 4 5 6 7 8

9 10 11 12

40 20 0

Jaisalmer - India

Amazon - Brazil

Temperature(℃)

Amazon Jungle is a moist broadleaf forest that covers most of the Amazon Basin of south Africa. The region is home to about 2.5 million insect species, tes of thousands of plants, and some 2,000 birds and mammals. Although Amazon Jungle is one of the most fascinating places, the most part is still savage.

Temperature(℃)

Precipitation(mm)

Temperature(℃)

Precipitation(mm)

30 25 20

200 180 160

30 25 20

15 10

140 120 100

15 10

5 0 -5 -10 -15 -20

80 60

1 2 3 4 5 6 7 8

9 10 11 12

40 20 0

Jaisalmer is located 575 kilometers west from the state capital Jaipur. The town stands on a ridge of yellowish sandstone. Many of the houses and temples are finely sculptures. It lies in the heart of the Thar Desert.

5 0 -5 -10 -15 -20

Precipitation(mm)

200 180 160 140 120 100 80 60

7 1 2 3 4 5 6 7 8

9 10 11 12

40 20 0


Church

The church located at the rooftop, whose look changes greatly in summer and winter, provide a sacred space and symbolizes the hotel.

Tea Rooms

Japanese triangle-shaped roofs covering the hotel control the amount of sunlight and create a space of soothing calm in the roof space. The thin wooden columns which blend in with an around bamboo forest make the piloti-space sublime. Tearooms located in these two introspective spaces stimulate visitor’ s inspiration.

Norway has much fewer hours of sunlight in winter, thus the exterior spaces to get a goo dose of sunlight are put in the units. Moreover, Brise-soleil extends by 5 meters according to low sun elevation. Restaurant Library Galleries

Studios

Diagram of the unit

The hotel is made of wood. The thin wooden columns and Japanese traditional paper doors make the architecture more flexible and create introspective spaces.

Studio Roof greening Exterior

Library Restaurant Lobby

Interior

S=1/600

Living Room

Engawa(Japanese verandah) spaces transformed from Brise-soleil become connected to middle corridors of the hotel, and generate new flows and activities of people.

Studios Engawa

Docks

Heliport Hangars

Gallery Lobby

By the clean water system installed in the piloti, the water falling down the cliff is used as drinking water and the leftover flows into the lake.

Because the hotel is located in untouched rainforest, it is impossible to come by land. Thus the heliport placed at the rooftop functions as the main access. Th e o p e n i n g s o f t h e g l a s s f a ç a d e b e c o m e progressively larger with the decreasing distance from the lake and sky. In the upper part this glass façade functions as a double skin wall, and provides the buffer zone by taking in plants at the lower part.

Tea Rooms

Studios

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The hotel rooms

Window Catcher

Under severe environment of India, the windcatcher placed at the rooftop and the two courtyards facilitate the circulation of air to adjust the temperature inside the architecture. The library, the restaurant, and the praying room are located in the basement, environmentally stable. Brise-soleil changes according to the façade of India’ s indigenous architecture, and terrace space prompts the visitors’ activities.

S=1/3000

Mullion

Library

Engawa

S=1/1000

Restaurant

Double Skin Facade

Middle corridors

Sunlight

Natural ventilation

Glass Wind

Studios

Transpiration Low-E glass

S=1/300 The common rooms at the upper part, where people have glorious view of the amazon jungle, function as the library, the restaurant and so on. Meanwhile the common space at the lower part faced to the jungle provides studios and group rooms. The piloti-space is connected with the dock which lies to the lake.

Library Lobby Gallery Restaurant Praying Room

The common rooms faced to the courtyards are put between the units, and connected with both the inside and outside.

Exhaust Wind Tower Exhaust Wind Air Drawn Low pressure zone Groundwater convection and evaporation

S=1/3000


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LIFETIME STUDY CENTRE Diploma Design instructor: Kengo KUMA March 2012 Winning the second prize at “ Diploma Design Competition” of the University of 11 Tokyo


Bricolage City This project experiments with the new architectural method in the city, Roppongi. Cities are something without integrity or something fragmented any more. In short, you could say that cities have become a sort of "the Second Nature". Most land developers, however, ignore this situation, or they are unaware of it. So, I would like to propose the alternative way of development and design the new type of lifetime study centre for city people who have to survive in the chaos of the cities. Bricolage, The keyword of this project. Bricolage incorporates several terms for making things through improvisation; DIY, tinkering, repair or making do and getting by. It is about the freedom afford by constraints. Imagination and invention are born of bricolage which is as much about a way of making things, as it is a general attitude towards knowledge and experience. Let us move to cities or the relationship between city and architecture. We, city people cannot perceive the integrity of cities, but experience fragments of them. So, we unconsciously assemble those fragments and form each person's city experience. This is truly a kind of bricolage. This project also aims to assemble fragments of city and rebuild them from the architectural perspective. Beyond that horizon, we'll find the city autonomous system behind the chaos.

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- Roppongi -

The site is located in Roppongi, Tokyo. Roppongi has grown around the skyscraper complexes, like the Roppongi Hills and the Tokyo Midtown, and is still being redeveloped. So there are many vacant lots which will be developed in the near future. The site is also a cluster of them.

SITE MAP

1:1200

Hard Rock Cafe High-rise Buildings

Deserted Houses Temples and Shrines

Expensive Condominium

Multilevel Car Parking Tower

Roppongi has distinct bilateral character. The busy downtown street and the quiet residential area, uptown and old town, day and night. Like two sides of a coin, they are in one united body while being diametrically opposed.

SITE

ROPPNGI HILLS

Vacant Lots Storage

Double-deck Retaining Wall Rent House Houses by a Certain House Builder

Toyo Eiwa Elementary School

an image of the chaos of Roppongi

FIELDWORKER 5 fieldworkers gather pieces of the city and make the typology of the city elements

This project was prepared by 19 bricoleurs, which means persons who create bricolage. They are divided into three groups, fieldworkers, shokunins, and draftsmen. They engaged in the project discontinuously and independently, but also with a strong association. They decide on the design through enthusiastic argument, numerous drawings and models. They works through the non-linear and connotative process. Their simultaneous activities eventually led to the urban and architectural bricolage.

SHOKUNIN

11 Shokunin, which means craftmen, creates the objects by refering the typology and according to the characteristics of the site.

In fact, I, Keisuke Ota, was also one of them, just took on the leading role. In this lifetime study centre, people can relive the city experience.

DRAFTSMAN

3 draftsmen assign proper architectural functions to the objects.

This building is still incomplete, and has the possibility to keep expanding. People activities contribute largely to establishment of environment, and building will expand with no well-defined center, then cause innumerable variations and organizations of space. Thus the bottom-up network will be formed, and it will change continuously and permanently. As bricoleurs create bricolage, users will customize their places at will.

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the bilateral character

row of multi-tenant buildings Pieces of Roppongi 20/832

Fieldworkers

multilevel car parking tower in the site

squatter area in the site

Typology of Forms 20/35

re ent ms nc ice roo ms ucatio off ass o t o m e r d n e e e cl er ss s ol n a tre seu theatr nt lac loyme o l o u e p p c m cho cen ld g ati ur chtow io ra us r ic y rary fter-s -care ursery t d etin nemp istroy utdoo estau est ho torage pecif nform layfie ultip ller A day Lib M Stu Ga S P Wa I R U Me N S R O H

materials

bricolage in the city 5 つのペーブメント

process of making the typology

the distribution of architectural functions

furniture

frames

renovation

the process of re-using exsiting materials

アスファルト コンクリート タイル 土 草

2 つの動線

大人の動線 子どもの動線

現状のペーブメント

HCEC のペーブメント

the pavement design

test models

the three meter-long model

14 view from above the nursery

view from under the playfield

view from above the eduvation centre

new vision of Tokyo


After- school day-care centre

Nursery

Library

Gallery

Watchtower

Multipurpose classrooms

Playfield

Information education centre

Specific classrooms

Rest houses

Storage

Restaurant

Studio

15 Outdoor theatre

History museum

Unempoyment office

Meeting place


- Plan S=1:800-

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Special Thanks to 19 Bricoluers.

5 fieldworkers Kenta Yamamoto, Akira Kanagucji, Erina Tanabe, Takeshi Yoshida, Keisuke Ota 3 Draftsmen Tanetoshi Ishikawa, Yoshio Yoshida, Keisuke Ota 11 Craftsmen Koji Sato, Kenji Yamada, Akira Yamaguchi, Haruna Nakamura, Yuki Uchida, Kousuke Tamura, Kousuke Tsuda, Yoshikazu Sato, 17 Cezan Iseda, Tanetoshi Ishikawa, Keisuke Ota and everyone involved.


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CONVERSION OF HISTORICAL HERITAGE Joint Exercise of Architectural Design with Waseda University instructor: Kengo KUMA November 2010 Winning the first prize 19


zero structure Komazawa Water Tower, twin towers which have a long history and many memories have symbolized the city, Setagaya in Tokyo. This project aims to resolve them into mere objects and to make apparent their strength as pure space by striping the function and hollowing out them. Not to prolong their life by adding new function, nor to demolish and kill them. I arranged radial and toric roads around the hollow towers and placed voids and boxes, and intended to create the node of the traffic network and the vessel to accept various activities. The voids and boxes respond flexibly to activities. Sometimes they function as theatres, sometimes a sort of galleries, and so on. The water towers change from zero that cannot be broached to zero which accepts various things, and would unveil the hidden city structure.

The water towers are located in Setagaya, Tokyo. They had functioned as urban infrastructure, but about 100 years ago their role as water towers was finished. Since then their surrounding area has been off-limits. We can say that the site means not only a huge clear space, but also a long gap of time.

20 section 1:800


perspevtives

interior of the tower

plan 1:400

site and its surrounding

plan 1:1000

design process

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JUNIOR HIGH SCHOOL degin competition “Basic and Final Design Work for Reconstruction of the Moriyama Junior High School” Imai Lab in the Univ. of Tokyo Nov. 5th, 2012 23


Integrated roof This school is located close to Lake Biwa, the largest lake in Japan. the skyline is in harmony with the landscape dotted with villages in this paddy area. Places for learning or communication is placed dispersively and the small roofs above the places lean over on the each other, then compose the large roof.

for guest

open to the public monument memorial tree

for students

memorial tree

parking area for staff

parking area for guest

4 tennis courts

parking area

courtyard 4m self-contained classrooms for students 4 softball courts a track

a football court

space for an athletic festival

a baseball field

・ existing trees

・ ・

space for an athletic festival

existing trees

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space for an athletic festival back gate

perspective from the ground

parking area

to the park

space for long jump

open to the public

守山市民運動公園

horizontal bars

monument

memorial tree


Landscape

water ways trees

Construction schedule

makeshift building

Disaster plan

area for evacuation

to the city

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28

1

1 flow of teachers flow of students

28 28

SITE

tennis courts

E.V.

existing building

approach for staffs and guesst

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階段 シャワー等

class room

approach for students

3

15

new building

階段

1

階段

1

28

階段

1

階段

1

new separate building

class room クラブハウス

(20×10m)

road open to the public

class room 倉庫

(10×6m)

ground

倉庫

階段

gymnasium

makeshift building to the park

14

13

13

22 26

1

3

27

1

17

28

13

12

12

for

27

1

18

1

1

̶ RF

th

ird

-ye

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stu

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1

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̶ 3F

for

se

co

nd

-ye

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stu

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perspective from north

nt

s ̶ 2F

17

10

18

24

23

17

5

9

10

9

18

17

11

19

20

7

18

4

for

6

22

7

8

1

21

1

3

8

1

12

7

1

1

st-

ye

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stu

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s

̶ 1F

7

8

1

5

fir

2

2

2

perspective from the second-floor corridor

su

idw

er)

31

.50

idw

int

er)

31

.50

°

In winter, we can use the air warmed in the roof place.

place for relaxation and communication under the roof

8.36°

int

e(m

°

e(m

ud

)78.36

ud

mer)7

peaked roof

ltit

idsum

na

ltit

natural ventilation

m titude(

su

sun light

na

mmer

wide roof to install solar panels

midsu titude(

sun al

15 MUSIC ROOM 16 AUDIO-VISUAL 17 TOILET 18 STORAGE 19 SHOWER ROOM 20 STAFF ROOM 21 PRINCIPAL 22 MEETING ROOM 23 ADMINISTRATION 24 STUDENTS’ MEETING 25 MECHANICAL 26 CLUBHOUSE 27 COUNSELING 28 TERRACE

sun al

1 CLASS ROOM 2 SELF-CONTAINED CLASS ROOM 3 MULTIPURPOSE ROOM 4 CLINIC 5 HOME ECONOMICS 6 LIBRARY 7 COURT 8 COMMON ROOM 9 ART ROOM 10 TECHNOLOGY 11 CALLIGRAPHY 12 SPECIFIC CLASSROOM 13 SCIENCE 14 COMPUTER

°

25 the view of the court


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LITTLE LIBRARY Design Studio Competition instructor: Yoshiyuki KAWAZOE July 2012

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Liverary Distance between architecture and city and people. The site is located at a quiet residential area in Tokyo. There are no public spaces, even small parks in this area, and every place looks just like every other place. So senses of distance of people are standardized, and the individualities are lost. What is the best relation between them? What is the most beautiful distance between them?

people - people I designed a library composed of books which people around the area have brought. I aims to create a new type of place for relaxation and to make friends.

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architecture - city they often stay well away from each other. I sought the best relation between them. The site is surrounded by various roads. So I pulled them in and derived a triangular form. By put three boxes on the triangle, I created a space in a multilayered way.

SITE

architecture - people The building is made of two different materials, reinforced concrete and steel plates. They have different senses of distance. People feel various senses of distance and earn each place to stay. As the book cabinets made of steel plates become filled with books, the sense of distance change with every moment.

Reinforced concrete

Steel plates

Plan_-1F 1:400

Plan_2F 1:400

Site & Plan_1F 1:400

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屋根 砂利敷 アスファルトルーフィング 外壁 鉄筋コンクリート t-210 コンクリート打放し、フッ素樹脂塗装

書架 スチールプレート t=10

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床 モルタル金ゴテ仕上げ


トップライト アルミサッシュ 高強度合わせガラス t=20

サッシュ アルミ押出成型材 フッ素樹脂塗装

ガラス 断熱複層ガラス

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detailed section drawing 1:40


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ELEMENTARY SCHOOL Design Studio Competition instructor: Takeshi ITO July 2011 Winning the third prize 33


Learning the City The site in Ginza (Tokyo) has too many characteristic parts to apply a certain form. The patterns of children’ s behavior are connected with 13 characteristic parts of the site, and these various connections compose this building. The elementary school derived directly from the context of the city and the site will become the best place for children who have to survive in the big city to study and learn.

the patterns of chiredren’ s behavior

13 pieces of the site 1

run walk

2

hide

3

crimb

4

squat 5

chatter eat

6

sit down

7

rest 8

peep gaze

9

duck under

10

jump over

11

play 13

gambol lie down

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12

diagrams


Image of the space

A huge variety of contexts of the site

SITE

Demolition of the buildings in the site

The site located in a gap-space between skyscrapers

1999

2011

Site35 Plan 1:400


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CITY HOUSE Jacs Competition (Residential Design) May 2011

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N-House Nowadays architecture has become a sort of tools to use natural environments to our advantage. With that in mind, this project aims to create a house adaptable to surrounding natural environments and to show coexistence of architecture and nature. This is the house of family of four, and situated in Tokyo. I lifted skin of the house, and dug in the ground. By doing this, the wind blows between the two and the sunlight gets into the room with a depth, and then the interior environment becomes diverse and enriched. Every rooms are placed in the house according to the diversity. Depending on the situation, people voluntarily find their place to stay in this living space, feeling wind, sunlight, and the environment around them.

Sunlight

Wind An existing house

= a shelter = a tool to use natural environments to our advantage

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Lift skin, and dig in the ground

Place rooms according to the diversity of the interior environments

Some rooms become connected to each other. Some rooms connect to the exterior.


penthouse

Section 1:100

skin

rooms

half basement

+1100

東立面  1:125

北立面  1:125

west

north

西立面  1:125

east

南立面  1:125

south elevation 1:250

-200

bed room +1100

garage

penthouse

bed room

living room +1400

1F(-1100)

1:100

2F(+1100)

1:100

3F(+3500)

1:100

roof plan

1:100

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WORKSHOP t-sa forum instructor: Takero Shimazaki Architecture September 2012 41


context & craft Architectural design can be a long and complex process. From project inception, through design process, construction and onto building occupation, our involvement in the projects does not really stop, and continues throughout the lives of the buildings in use. Architecture is of course not just a paper exercise and there is a long design and construction process before user occupation. In the process of architectural design and construction, there are many ‘ingredients’ outside of architectural concepts and technical issues that would influence the course of the design and the finished building. These may include, client brief, construction budget, site constraints, site investigations and discoveries, context, the economic or political climate and statutory regulations. Through the experience of my practice, I find one of our main challenges during this process is how to retain and realise each architectural aim or vision throughout this long and complex process. We know that the constraints change constantly during the design process influenced by the various ingredients including some of those above. We should be conscious of striving to arrive at an architectural design methodology or a principle that would cope well with these influences. We do this by being inclusive of these ‘ingredients’ , rather than to conflict with them in order to arrive at the architectural aims. The architecture is enriched if the principle accommodates and absorbs these ingredients. In this workshop, we pursued the relationship between architecture and context and developed our thinking through “craft” . Through working by hand, we was often reminded of something we had not noticed. The area around the Elephant and Castle station in London was designated as the site. There are many different types of building, activity, and people, which means the area has not only colorful context but also various problems. The area is also being redeveloped in recent years.

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1st week In the first week, we perused the site carefully, and by expressing the context of the site through craft, we discovered new problems. Moreover, we learned about unfamiliar techniques of craft, including printing, engraving, and so on ,and created images of architectural compositions.

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2nd week We explored the problems of the Elephant and Castle. I focused on the difference between the chaos around the roundabout and the emptiness in the centre of the roundabout, then expressed the furture possibility of the centre through the drawings. I also create some drawings and models to express the variation and sequence of activities around the roundabout, and then sought a connection between around and the centre of the roundabout.

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3rd week In the third week, we were required to produce final works that summrises our proposals. I created two drawings and two models. My propsal aims to provide a kind of junction of activities in the centre of the roundabout. I thought that many different activities around Elephant and Castle should have a relationship with each other, but if we try to combine them too strongly ,we’ ll end up ignoring their identities. So I defined the centre of the roundabout as the place of collision and integration.

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- Fin -

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Keisuke OTA / Portfolio - Sep 2012  
Keisuke OTA / Portfolio - Sep 2012  

Works in Department of Architecture, Faculty of Engineering, the University of Tokyo.

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