3.SuperTallStructures

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CSSE.kr

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StructuresSuper-Tall

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SEOUL DMC LITE TOWER

- Occupancy : Residences, Hotel,

Office,

Business Center

- Story : B9/133F (Highest: 640m)

- Gross Area : 724,675

- Architects : SOM +

Samoo Architects

- Structure : Outrigger + Core

Seoul, Korea, 2009

The Digital Media City Tower is a slender tower with residenal occupancies in the upper poron of the building. Acceleraons due to

the moon of the building structure in the wind must be controlled to acceptable levels.

To control the acceleraon due to vortex shedding, the tower is designed with a varying profile which disturbs the formaon of

uniform vorces.

The structure for the 640m tall Digital M edia City Tower is

conceived as a highly efficient, easily constructed, repeve, and

robust combinaon of a rigid central coreand perimeter megacolumns.

The lateral wind load resisng system is comprised of interior

reinforced concrete core walls coupled with reinforced concrete

outrigger walls spanning between the coreand four megacolumns

on each of the broad faces of the towerand two megacolumns

on the narrow faces.

The outrigger walls are strategically located at each of the twostory

mechanical floors and link the core to th eexterior megacolumnsin order to bring addional gravity loadsto the perimeter

while resisng upli wind forces

Structural Diagram

Reinforced concretecore wall system

Structural Diagram

Reinforced concretemega columns

Reinforced concreteoutrigger walls atmechanical Floors

Mode 1 - Translaon

T = 8s

Wind Load Deflecon

H / 500

Varying profile disrupts the

formaon of uniform vorces

Mode 2 - Translaon

T = 7s

Mode 3 - Translaon

T = 2s

STRUCTURAL STIFFNESS & OCCUPANCY COMFORT

STRUCTURAL SYSTEMJamsil, Seoul, Korea, 2001

- Occupancy : Residenal complex

- Story : B5/46 F


- Architects : HEERIM Architects +

GROUP-3

- Contractors : HANWHA +

SAMSUNG E&C Co., Ltd.

- Structure : RC Core Wall(600mm) +

Outrigger Girder(Depth. 1600mm) +Fin Wall(300mm)

- Overseas Partner : Ove Arup

GALLERIA PALACE IN CHAMSIL

Eccentricity Connecon of Outrigger and Core wall

Secon Shape Gravity + Lateral Load () Gravity + Lateral Load ()

Stress of Outrigger and Core wall


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Dogok, Seoul, Korea, 1998

- Occupancy : Residences

- Story : 4/66


- Architects : Samoo Architects & Engineering

- Contractors : SAMSUNG E&C Co., Ltd.

- Structure : RC Core(650mm) +

Steel outrigger truss

TOWER PALACE I

CORE WALL

OUTRIGGER & BELT TRUSS

STEEL FRAME

Base plate

Ulsan, Kyoungnam, Korea, 2005

- Story : 4/53


- Architects : Kiahn

- Structure : RC Core wall + Finwall

53 story apartment, and 4 story

basement parking story. Thickness 700mm

RC core wall and FinWall.

30m thick transfer plates of 5th floor are

supporng the above story's bearing walls

and acng as outrigger truss fot

the horizontal forces.

IAAN EXORDIUM


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BUCHEN KUMHO RICHENSIA


- Story : 7/66


- Architects : Haeahn

- Contractors : Kumho E&C Co., Ltd.

- Structure : RC Core wall + Fin Wall +

Outrigger/Belt Wall

Buchen, Korea, 2007

Beltwall opening concept View

: RC Core Wall + Fin Wall + Outrigger/Belt Wall

Link Beam

(depth.700)

Core Wall

(thk.1000)

Finwall

Fin wall

(thk.600)

Outrigger Wall

(thk.600)

Belt Wall

(thk.500)

41F-65F

Core Wall

Thk.600

21F-40F

Core Wall

Thk.800

B6F-20F

Core Wall

Thk.1000

Changwon, Korea, 2004

- Occupancy : Residences

- Story : 4/43 Gross Area : 427,548

- Architects : A Group

- Structure : RC Core wall + Flat Plate

43 story officetel and 5 story basement parking story. Thickness 700mm

RC core wall and Flat Plate (THK. 250mm) resist lateral force. (Dual system)

THE CITY 7

PC + T.S.G + Column

Concept of Transfer System


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ASAN CYCLONE TOWER

- Occupancy : Office

- Story : B7/51F


- Architects : Kunwon Architects

- Contractors : SK E&C Co.Ltd.

- Structure :RC Core wall + Steel Diagrid System(Spiral Brace)

Asan, Korea, 2006

Lateral Resisng Behavior

Node Design (considering Construcon Sequence)

Alt 1.

Outrigger &

Belt Truss System

Alt 2.

Diagrid System

Inner View of Each S tability System

Core

thk.900

Corner

Column

Diagrid

Column

RC Core

Steel

Girder

Core

thk.1100

Step1.Highstrengthbolt at Diagrid Segment joint : KBC2005(LSD)

Step2.Forceflow betweendiagrid segmentandperimeter girder : designedby beam-columnelement to

resist tensile force from upper inclined column.

Step3.Diagrid columnjoint : analyzedprecisely using FEM in DesignDevelopment step.

[Construcon procedure of diagrid segments] [Design Process]

1. in-place steel shop welding

2. liing up by 1 piece

3. trial shop assembly of some of high strength bolts in-place welding

4. high strength bolts assembly

5. seng up perimeter girders

Member Plan

BUSAN TREPLE SQUARE

Haeundae, Busan, Korea, 2007

- Occupancy : Resort, Spa Facilies

- Story : 117F(Highest:511m),

85F(396m) Two Tower, 58F Middle Tower


- Architects : Beyond Space Group + BSD Architects

- Structure : Triangle Core + Mega Flange

Interacon of Iateral-force

H-type bending members using web wall

System


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GALLERIA FORET


- Story : B7/45F


- Architects : Haeahn + Songhyun Architects

- Contractors : Hanhaw E&C Co., Ltd.

Seoul, Korea, 2008

Link Beam

depth.700skib thk.200

Link Beamdepth.650

RC Core Wall

thk. 1000~1300

Perimeter Girder

1600X400

>

>

>

>

>

PRD(1000)

Atrium designslower levels conduit design

1 block3 block

Plan

TOP - DOWN Method Wind Tunnel Test

BUSAN METROPOLITAN CITY HALL

Busan, Korea, 1992

- Occupancy : City Hall

- Story : 4/28


- Architects : ILSHIN Architects

- Contractors : SAMSUNG E&C J.V

- Structure : Steel frame

Frames

TUBE Sys. Concept

Documents

3.SuperTallStructures