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JONGHYUN CHOI

건축 포트폴리오 ARCHITECTURE PORTFOLIO


JONGHYUN CHOI

최종현

Born in 1990, Republic of Korea. Studied architecture at Yonsei University (Korea) from 2008 to 2016 2010 - 2012 : Military service, ROK Army intelligence unit 03-10. 2014 : RWTH Aachen University (Germany) exchange student (business administration) 11-12. 2014 : Ga-A Architecture internship program, Seoul 01-12. 2017 : Designer at Samuso Hyojadong Architects & Associates, Seoul


contents

1. The Library, In the Town

2

Gaepo Municipal Library renovation 1st semester, 2015 / graduation project / academic / individual

2. Jeong-dong Gallery

80

Seoul Regional Tax Office Namdaemun Annex renovation 1st semester, 2013 / academic / individual

3. Gwanghwamun Square Culture Center

102

1st semester, 2012 / academic / individual

4. Yonsei University Visitors Center

118

2nd semester, 2009 / academic / individual

5. Professional Works Samuso Hyojadong Architects & Associates, Seoul 01-12. 2017

130


2


The Library, In the Town Gaepo Municipal Library renovation

139, Gaepo-dong, Gangnam-gu, Seoul

The word ‘town’ has a special meaning that can not be simply defined as a place of residence. Memories of the town where we spent our childhood and adolescence are underlying everything we carry out, and we are always living in the present, missing the distant days of nostalgia. This project was started from a deeply personal point, affection of the town where I grew up for a long time. The memories of the battered apartments, well-shaded green in-between and unpaved trails make me feel like walking in the town one day. And maybe I wanted to get somebody else’s sympathy for the pleasure of walking in the town, or speak out sadness about the neighborhood, where I will never be able to stroll through again with the redevelopment.

The Library, In the Town

3


4


Gaepo Municipal Library Jugong Apartment Complexes were constructed by the Korea Housing Corporation in 1983 as a large-scale public housing project in the Gangnam district of Seoul. It’s been over 30 years since they were built, and whole apartment complexes are now in the procedure of demolition and reconstruction. The neighborhood where more than 30,000 people lived part or all of their life is turning into something else for a moment, but this change is inevitable for the better residential environment and economical profit of the proprietors. Nevertheless, I feel the need to leave something to remember the existence of the old town. There is a municipal library that settles in a blank of the town where the redevelopment did not reach. The library is outdated as it was built in the same time with the complexes, but it has a geometrical shape like an objet and a dramatic large space inside. I decided to leave this library as a trace of the old town, and planned the renovation and expansion.

The Library, In the Town

5


existing library elevation

existing library plan

6

Design Process


1

Existing library consists of three parts : the central part with main hall and administrative offices, and the both sides with bookstacks and accessory facilities. Compared to the central part with a large space with compartment ceiling, other two parts look like they were stuck in an awkward manner. So I planned to leave only the central part as the nucleus of expansion. The central part will be used as a single large space with lobby and bookstacks by demolishing all inner walls except for the structural ones.

The Library, In the Town

7


8

Design Process


2

Despite having the advantage of being in contact with the main road of the village, the existing library seems somewhat isolated. This is because visitors are required to climb one storey high to enter the interior of the library, and the building is surrounded by the ridges, making it impossible to enter beyond the main road. In order to increase the accessibility of the library, a ramp connecting the village’s main road with the promenade at the rear is planned. As the ramp is extended to the main road and planned inside the building, visitors can enter the library directly from the main road level. The ramp is another walkway in the neighborhood, which makes the library a familiar space for redsidents.

The Library, In the Town

9


plan diagram

section diagram

10

Design Process


3

Short interval of low-rise apartments possibles face-to-face planning pattern. Facing apartments have entrances in the interspace, and funtion as a unit. The repitition of these units again creates a space facing back of the apartments. This results in spaces of different characteristics on the front and back of the apartment. In the extension of the library, the spaces used for specific purposes are laid out in the same way as the apartments, and the interspaces are used as paths and open stacks of contradictory characteristics.

4

Each interspace is reinterpreted as a universal sense of spaces with ceiling of different forms. Whereas the space facing the entrances is a large scale space like a lobby with a vaulted ceiling, another space is a quiet reading space with an inner court. The Library, In the Town

11


12

Physical Model / Axonometric Drawing


The Library, In the Town

13


04. 1998

14


Drawings

The Library, In the Town

15


16

Site Plan


0

5

10

25

50

100m

The Library, In the Town

17


3

2

4 1

3

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

18

Ground Floor Plan


5

6

0

1

2

5

10

20m

The Library, In the Town

19


10 9

11

8

11

9

11

12

7

16

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

20

1st Floor Plan

12


13

1

1

1

14

15

14

2

18

20

17 19

0

1

2

5

10

20m

The Library, In the Town

21


2

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

22

2nd Floor Plan


10

13

11

21

22

14

11

9

11 14

12

7

25

26

24

17

23

25

23

0

1

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20m

The Library, In the Town

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24

West Elevation (Front View)


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1

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5

10

20m

The Library, In the Town

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26

North Elevation


0

1

2

5

10

20m

The Library, In the Town

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28

South Elevation


0

1

2

5

10

20m

The Library, In the Town

29


16

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

30

Section 1


24

17

17

26

20

0

1

2

5

10

20m

The Library, In the Town

31


7

1

4

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

32

Section 2


7

6

0

1

2

5

10

20m

The Library, In the Town

33


8

9

1

1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

34

Section 3

2

11


9

14

21

14

11

15

15

5

6

0

1

2

5

10

20m

The Library, In the Town

35


1

entrance hall

14

toilet

2

cafe

15

open stack B (with an inner court)

3

kids

16

main hall (existing lilbrary)

4

storage

17

main stack (existing library)

5

closed stack

18

locker

6

machinery

19

open stack

7

main stairs (atrium)

20

office

8

open stack A (with a vaulted ceiling)

21

open stack C (with a vaulted ceiling)

9

reading

22

open stack D (with an inner court)

10

copy

23

multimedia

11

seminar

24

open stack E (with a vaulted ceiling)

12

service

25

lecture

13

AV booth

26

courtyard

36

Section 4


16

8

2

3

0

1

2

5

10

20m

The Library, In the Town

37


06. 2014

38


Perspectives & Details

The Library, In the Town

39


40

Front View


The Library, In the Town

41


42

North Elevation


Coarse materials like exposed concrete and polished metal are used in the expansion part of the library. / Expansion joints of 750*2000 spacig are the basic unit of design.

The Library, In the Town

43


The existing building, including the openings, is fully coverd with metal fabric louvers with 50mm spacing, leaving only the silhouette and rough surface of the building. / It’s the symbol of the old town, where the geometric form of the original building is emphasized.

44

West-South Elevation


The rough surface of the building, from which the existing finish has been removed, is revealed through the louvers.

The Library, In the Town

45


existing brick beds

46

West-South Elevation

extension


The brick beds located in the front of the existing building extend to the side of the building in response to the elevated ground. / It also becomes the base of the newly built mass.

The Library, In the Town

47


48

Entrance Hall 1


The first space visitors encounter when they enter the interior. / The compartment ceiling opened to the sky and overall glazing cast a variety of shadows on the space, giving a sense of openness. The Library, In the Town

49


50

Main Stairs 7 (Atrium)


The Library, In the Town

51


52

Main Stairs 7 (Atrium)


Fabric makes light and bright spaces, presenting contrast to the massive structure of concrete. / Fabric louvers on the main stairs are shades that put a gentle light on the space. / The louvers are closer to your hands as you step up the stairs.

The Library, In the Town

53


54

Main Hall 16 (Existing Library)


The Library, In the Town

55


56

Fabric Louver Detail (Existing Library)


The openings of the existing building are filled with closely spaced fabric louvers, and recognized as coarse walls rather than openings. / The existing brick walls are painted and used as they were.

The Library, In the Town

57


current state of the existing library

58

Main Hall 16 / Main Stack 17 (Existing Library)


Removing all interior walls except the structure, the existing library is used as a single large space for lobby and bookstacks. / The existing staircase is rounded to reduce the weight.

The Library, In the Town

59


60

Main Hall 17 - Open Stack A 8


The Library, In the Town

61


62

Open Stack A 8 (with a Vaulted Ceiling)


The Library, In the Town

63


64

Open Stack A 8 (with a Vaulted Ceiling)


A large space with a vault-shaped ceiling / The concrete ceiling is floating lightly, leaving only the form without any seams or dependant lightings. / The weighty frames emphasize the boundaries between the open space and rooms for specific purposes.

The Library, In the Town

65


66

Vaulted Ceiling Detail


The vaulted ceiling is planned as big as possible, regarding the overall proportion. / The light flows inside on the rounded edge of the ceiling. / The reflective alumium panels and indirect lighting illuminate the ceiling.

The Library, In the Town

67


68

Reading Room 9 (Rooms for Specific Purpose)


The arch shape of the open bookstack is synecdochically repeated at luminous ceilings in rooms, corresponding to the change of spatial scale.

The Library, In the Town

69


70

Open Stack B 15 (with an Inner Court)


In the courtyard where the user’s access is blocked, the grass and trees transferred from the existing apartment complexes grow wild with minimal management. / The steel bookshelves with minimal thickness emphasize the texture of the books rather than the furnitures themselves. / A still space surrounded by green and books.

The Library, In the Town

71


existing trail

trail from main road

courtyard

72

Open Stack D 22 (with an Inner Court / Outdoor Passage)


A portion of the bookstack facing the trail is spared with the passengers outdoors. / The pedestrians blink like a low frame image and leave their residual images.

The Library, In the Town

73


74

Courtyard 26


The Library, In the Town

75


76

Courtyard 26


A waterside space leading to the promenade at the back of the library / A part of the roof is protruded outward and casts shades underneath. The Library, In the Town

77


78


02. 2016

The Library, In the Town

79


80


Jeong-dong Gallery Seoul Regional Tax Office Namdaemun Annex renovation

119, Jeong-dong, Jung-gu, Seoul

On the facades of the city, we can see the superficial appearance, and also infer the internal structure to some extent. Such structures may be revealed in detail in the form and use of the respective building, and roughly at the density of the entire facade. This project aims to study how a small change in the density strengthen the characteristics of the area, and how the change is extended inward. The main street from Sejong-ro to Taepyeong-ro is the largest road of the Seoul Metropolitan City, and two areas facing the road have conflicting characteristics. In contrast to the commercial areas of the other side, in Jeong-dong area, where the site is located, historical landmarks and cultural facilities are located in low density. The external change that loosens the facade further strengthens this difference and slightly exposes the scenery inside. The scheme aims to make the best use of the scenery of the old city and preserve the ambience of the original building, rather than standing out as a new one.

Jeong-dong Gallery

81


Koreana Hotel

Sungam Ancient Book Museum

Seoul Metropolitan Council

Seoul Anglican Cathedral

Cecil Theater

Seoul City Hall

Deoksugung Palace

0 2 4

82

Design Process

10

20

40m


1

Existing building blocks the view toward the internal area, and people just pass along the street.

Jeong-dong Gallery

83


Koreana Hotel

Sungam Ancient Book Museum

Seoul Metropolitan Council

Seoul Anglican Cathedral

cafe

Cecil Theater

Seoul City Hall

Deoksugung Palace

0 2 4

84

Design Process

10

20

40m


2

Demolish a part of the existing building and compensate the area with underground space. / Build a small square with a cafe on it. / The new square, with the Anglican church as its background, keeps people in and draw them into the inner area.

Jeong-dong Gallery

85


Koreana Hotel

Sungam Ancient Book Museum

Seoul Metropolitan Council

Seoul Anglican Cathedral

cafe

Cecil Theater

Seoul City Hall

Deoksugung Palace

0 2 4

86

Design Process

10

20

40m


3

Two transparent masses protruding toward the inner area are added. / The new structure provides additional spaces for large displays, and works are displayed with the old cityscape as the backdrop. Jeong-dong Gallery

87


GL a’

B1

2

4

6

4

1

7

entrance square

2

cafe

3

elevator

4

sunken

5

outdoor exhibition

6

exhibition hall

7

exhibition room

8

atrium

9

media

10

ticket

11

lecture

12

storage

88

4 4

Axonometric Drawing / Plan

3

3

5

a

1

012

5

10

20m


Two additional atriums for large-scale exhibition is added to the existing building. / The difference in space scale and quantity of daylight between atriums and light-controlled exhibition spaces inside leads the exhibition circulation.

2F

3F

A

3

3

8 7

7 8

Jeong-dong Gallery

89


90

Elevation A


Jeong-dong Gallery

91


Slabs and walls of existing building are partially removed to secure visual and spatial continuity between each part of the building. The large void of the building leads the visitors inside.

9

8

8

7

1

a

2

a’

6

5

10

11

1

entrance square

2

cafe

3

elevator

4

sunken

5

outdoor exhibition

6

exhibition hall

7

exhibition room

8

atrium

9

media

10

ticket

11

lecture

12

storage

92

Section a-a’

12

0 1 2

5

10

20m


2580

1130

870

Plain concrete t=150 Urethane rubber waterproof t=3 Structural concrete t=150 Rigid insulation t=150

3310

1290

GL+18600

GL+14000

3280

120 100

1000

Structural steel beam Steel joint Double glazed glass t=10+(8+8) Curtain wall frame Steel support Pin lighting

1900 Polished concrete screed t=25 Structural concrete t=250

100

1900

100 150

3260

1240

GL+9600

Polished concrete screed t=25 Structural concrete t=250 Rigid insulation t=150

1240

GL+5100

Jeong-dong Gallery

93


94

Entrance Square 1


The large void of the building leads visitors inside. / The square is extended to the hidden courtyard between the gallery and the Anglican Church.

Jeong-dong Gallery

95


Exhibition rooms are light-controlled exhibition spaces for small-scaled works.

96

Exhibition Room 7 / Atrium 8


In atriums, the works are displayed with the old cityscape as the backdrop. / The contrast and rhythm between the spaces leads the exhibition circulation.

Jeong-dong Gallery

97


Two sunkens reaching the lowest floor draw daylight into the underground spaces.

98

Physical Model


Atriums protrude toward the scenery of the inner old city.

Jeong-dong Gallery

99


100


Jeong-dong Gallery 101


102


Gwanghwamun Square Culture Center 1-68, Sejong-ro, Jongro-gu, Seoul

Gwanghwamun Square Culture Center 103


1

2

1 Gwanghwamun Square in normal times

104

/

2 during political, cultural events


Unlike other parts of the city, 'Square' fulfills its function best when it is empty. The site of this poject is a slender empty lot, that lies in the middle of the city's largest and most important road with 10 lanes, and in time of need, it is expanded to the road of both sides and whole of the space is used as a large square . The requirement was to design a culture center for citizens and visitors on it. In fact, building something in the square can discolor the essence of the square, which has to stay empty for its function. So naturally, where I started from was not the way of filling required programs in the site, but rather answering the question, how to empty the square, when we necessarily have to build something in the square. Instead of designing a single long building after the shape of the site and splitting the square into two, the short walls perpendicular to the site's axis are placed on the site.

Gwanghwamun Square Culture Center 105


1

2

106

Design Process


3

4

1

A long mass on the site blocks the vision and traffic across the street.

2

Walls separating the site into short se gments still enables the interaction of both sides.

3

Each wall is expanded as needed for each requirement.

4

The walls are arranged considering the relationship with the surroundings. Gwanghwamun Square Culture Center 107


108

Site Plan


0 2 4

10

20

Gwanghwamun Square Culture Center 109

40m


1

110

Plan / Section

2

3

3

4


4

2

5

6

7

1 lobby / 2 restroom / 3 gallery / 4 lecture / 5 office / 6 multimedia / 7 cafeteria

0

1

2

5

10

20m

Gwanghwamun Square Culture Center 111


112

Exterior


The walls define the outer space between them, and their use depends on the adjacent walls.

Gwanghwamun Square Culture Center 113


Double glazed glass t=10+(8+8) Steel louver t=40 w=500

500

400

GL+7150

Pin Lighting

1150

350

925

550

line lighting Intake duct d=100

Structural concrete t=300 Rigid insulation t=150 Urethane rubber waterproof t=2 Structural concrete t=100

6600

Marble t=15 Structural concrete t=170 Structural concrete t=160

2000

4000

2000

250

Polished concrete screed t=25 Structural concrete t=275

GL+150 300

GL

1200

Swirl diffuser

300

GL-1350

114

Interior


The inner wall accepts daylight coming in through the skylight.

Gwanghwamun Square Culture Center 115


116


Gwanghwamun Square Culture Center 117


118


Yonsei University Visitors Center 134, Shinchon-dong, Seodaemun-gu, Seoul

More than we've thought, people like shades more than sun-drenched spots, and feel better in their secret places than in the crowd. When designing a visitors center located at the entrance of the university, I decided to plan a hidden courtyard surrounded by high walls, rather than opening wide toward the flow of human traffic. The courtyard and each program of the visitors center stay visually blocked from the outside, but they are very open toward the inner courtyard. It becomes a private external space that seems to be independent of the busy surroundings, which is recognized as a more personal and intimate space for the users.

Yonsei University Visitors Center 119


1

2

3

120

Design Process


4

1

Plan a closed courtyard surrounded by two-story walls.

2

Each wall is deformed corresponding to the surrounding environment.

3

The rooms of various sizes required by the visitor center are placed outside the walls in the form of boxes.

4

A corridor is placed along the inside of the walls, and windows and stairs are placed. Yonsei University Visitors Center 121


tra

Ba

ek

ya

ng

st

.(

m

ai

n

st

re

et

of

th

e

ca

m

pu

il

s)

b

2 1

a’

3 5

a

4

6

7

B

C

entran

ce A

main

c

b’

1F c’

1

lobby

6

office

2

restroom

7

information

3

storage

8

restaurant

4

souvenir

9

multimedia

5

cafe

122

Plan


b

a’

a

C

B

8

c

A 9

b’ c’

2F

0 1 2

5

10

20m

Yonsei University Visitors Center 123


A

5

1

a

a’

1

lobby

6

office

2

restroom

7

information

3

storage

8

restaurant

4

souvenir

9

multimedia

5

cafe

124

Section / Elevation

1

b


B

C

9

8

6

7

b’

c

c’

0

1

2

5

10

20m

Yonsei University Visitors Center 125


Lifted wall accepts the traffic bypass and restrictively opens an outsider’s view into the courtyard.

126

Physical Model


A small plaza surrounded by chambers protruding toward the inside of the campus leads to the rear walkway.

Yonsei University Visitors Center 127


128


Yonsei University Visitors Center 129


130


Professional Works at Samuso Hyojadong Architects & Associates

Professional Works 131


132

north elevation

east elevation

south elevation

west elevation

section 1

section 2

M House (2017) / role : design, construction documents / photography : Hyosook Jin


Stack of 3 lands and 3 types of plan. / Concrete slabs emphasize the segmentation.

Professional Works 133


2 1

3

GF

5

4

1F

7

6

2F

134

M House (2017) / role : design, construction documents / photography : Hyosook Jin


1

2

3

4

6

5

7

Each floor has a different type of plan. / The ground floor is for entrance and utility room. / The 1st floor has private spaces like bedrooms and bathrooms, and each bedroom is facing the balcony. / The 2nd floor is for living room, kitchen and veranda.

Professional Works 135


structure diagram

section 1

section 2

GF

1F

136

H Repair Shop (2017) / role : design, visualization


Scheme #1 The project aims to design a repair shop for secially equipped vehicles. / In order to respond to the scale of neighboring highway and large vehicles, we designed a building like a civil engineering struture. / Workshop users have the feeling that they are under the bridge. Professional Works 137


138

H Repair Shop (2017) / role : design, visualization


Scheme #2 A long translucent building like a signboard facing the highway. / Each program is visually connected via overall glazing.

Professional Works 139


plan drawing

suspended

h 1200 -

h 600 - 1200

h 200 - 600

h 200 - 600

h 0 - 200

16

6

4

1

11

17

24

7

19

2

12

30

20

12

29

3

20

31

23

14

8

5

23

27

15

140

Exhibition design of Sense of Rhythm (2017) / role : project management / curation : Wooran Foundation


section drawing

The scheme aims to create a exhibition space that is large enough to feel like a space, rather than a stage. / The visitors ascend and descend the ramp and watch the exhibit at changing eye level. The curled edges emphasize the impression that the works are in a room.

Professional Works 141


Jonghyun Choi / jhn322@gmail.com


Profile for jong hyun choi

Architecture Portfolio / Jonghyun Choi / 건축 포트폴리오 / 최종현  

Architecture Portfolio / Jonghyun Choi / 건축 포트폴리오 / 최종현

Architecture Portfolio / Jonghyun Choi / 건축 포트폴리오 / 최종현  

Architecture Portfolio / Jonghyun Choi / 건축 포트폴리오 / 최종현

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