zifeng tower - ramazan sari -...

BS 536STUDIES ON TALL BUILDINGS: DESIGN CONSIDERATIONS

Fall 2011-2012

Case Study: Zifeng Towerby

Ramazan Sar

Submitted to: Assoc.Prof.Dr. Mehmet Halis GünelAssoc.Prof.Dr. Ali Murat Tanyer

Arch. H.Emre Ilg n (MSc.)

MIDDLE EAST TECHNICAL UNIVERSITYDEPARTMENT OF ARCHITECTURE / BUILDING SCIENCE PROGRAM

e S

Ram

Submitted to: Assoc.Poc.Prof

GN CONSIDERATIO11-2012

Zifeng Tower

Sar

PROGRAMZIFENG TOWER

Official Name: Zifeng TowerOther Name: Nanjing Greenland Financial

CenterDeveloper: Nanjing Guzzi Greenland

Financial CenterOwner: Nanjing State Owned AssetsMain Contractor: Shanghai ConstructionLocation: Nanjing / CHINAConstruction: 2004-2010Structural System: Outriggered Frame Structural Material: CompositeArchitectural Height: 450 mHeight Occupied: 316 mFloors Above Ground: 66Elevator Count: 54Top Elevator Speed: 7m/sUse: Mix-Use/ Hotel, Office, Retail Shops.

Drawing: Ramazan SARI

Case Study: Zifeng Tower by Ramazan SarSubmitted to: Günel, Tanyer, Ilg n – Fall 2011

Source: CTBUH (1)

owernjing Greenland Financiante

per: Nanjing Guzzi Greenlinancial Cente

Owner Nanjing State OMain Contractor: Location:

onstru

ARCHITECTURE

Design Architect: Skidmore, Owings, Merill (SOM)

Associate Architect: ECADIStructural Engineer: SOMMEP Engineer: SOM

Structural System:According to Taranath:

Outrigger and Belt Truss SystemAccording to Smith:

Outrigger Braced SystemAccording to Günel & Ilg n:

Outriggered Frame System

Sources: CTBUH (1)Taranath (6), Smith & Coull (7), Günel & Ilg n (8)

Image: Bustler (4)

STRUCTURE


er cording to

Outrigger BraAccording to G

riggered F

Image: Bustler (4

tem:anath: elt Truss Sy

yste

RE ARCHITECTURE

• Clear sight of nearby mountains, lake and historic building• An atractive form• Public spaces placed at top of the tower• Building Form related with the triangular site area.• The project was a competition and the winner is the Chicago Office of SOM• Public spaces like restaurant and observatory areas placed top of the tower

Image: SOM (3)

Source: SOM (3)

sight of nearby mountainsAn atractive foPublic spaces plaBuilding Form re

• The project wPublic s

ARCHITECTURE

Source: CTBUH (1)CTBUH Technical Paper (2)


ARCHITECTUREFloor Plan -1Ground Floor - Floor 35


Floor Plan -1

or - Floor 35

ARCHITECTURE


Floor Plan -2

Floor Plan -2Floor 35 - Floor 60 Floor 60

ARCHITECTURE

Drawings: Ramazan SARISection -2 Section -1

Source: CTBUH (1)Technical Paper (2)

Section -

ARCHITECTURE

Drawings: Ramazan SARI

Elevation -1 Elevation -2 Elevation -3Elevatio 1

ARCHITECTURE

Image: China Builders (9)Real Elevation -1 Real Elevation -2 Real Elevation -3

Image: All the Most (10) Image: SOM (3)age: ChinaReal Elev io

STRUCTURE

Why Outriggered Frame System?

Building is defined as “Over-Limit and Complex Structure”for Chinese Code because of the 450m height of the structure.

Chinese Code Limit for the concrete core-steel framestructure is 190m.

Therefore, Outriggered Frame System is selected to support the structure

Drawing: Ramazan SARIAxonometric View

Source: Technical Paper (2)

ineuct

Thereforesupport

onometri

stem?

Complex Structuree Code because of he 45

f the structure.

e Limit for90m.

STRUCTURE

Axonometric View



Outriggered Frame System:

There are 3 mechanical floors which are at floors 10, 35 and 60

Mechanical floors are in doublefloor height which is 8.4 m

Outriggers are constructed inthese mechanical floors

Section -1Section -

Frame System:

There are 3 mechanical which are at flo

Mechanfloor

STRUCTURE


Outriggers and belt in Mechanical FloorOutriggers

STRUCTURE

Drawings: Ramazan SARI

Plan of the Outriggered Frame System in Floors 10 & 35


Floor 10

Floor 35

Floor 60

Composite ColumnDimension Range:900 mm - 1500 mm

Structural Steel

Reinforcement Steel

Core Wall Dimension Range:300 mm – 1750 mm

Plan of the

ompDime

Structural Steel

5STRUCTURE

Drawings: Ramazan SARISource: Technical Paper (2)

Floor 10

Floor 35

Floor 60

Structural Steel

Reinforcement Steel

Plan of the Outriggered Frame System in Floor 60

Composite ColumnDimension Range:900 mm - 1500 mm

Core Wall Dimension Range:300 mm – 1750 mm

Plan of t

Structural Stee

SCompD

STRUCTURE


Floor 10

Floor 35

Floor 60

Section of the Mechanical Floor

The Steel Columns inside the core is in 3 floors height

Section

STRUCTURE

Drawing: Ramazan SARISource: Technical Paper (2)

Axonometric View of the Floor 10 Axono

STRUCTURE


Axonometric View of the Mechanical Floor

Perimeter ColumnsOutriggers

Core

Belt

Axono

ggers

STRUCTURE


Axonometric View of the Steel Structure in the Mechanical Floor

Perimeter Columns Outriggers

Belt

Axonome

Be

STRUCTURE


Partial Plan of the Floor 35

Perimeter Columns Outriggers Floor 35

Mech. Floor

Floor 60

Floor 10

Core 2

Core 1

Section -2

PartiaME

or 35oo

or 60Floo

or 10Floo

STRUCTURE


Partial Section of the Floor 35

Perimeter Columns

The Perimeter Columns of the narrow side of the building in floor 35 or mechanical floor 2 placed upon the core wall because of the getting smaller of the building volume after this floor

Floor 35

Floor 60

Floor 10

Mechanical Floor 3

Mechanical Floor 2

Mechanical Floor 1

Section -2Partia

umns of the f the building in flo

hanical floor 2 placed the core wall because o

etting smaller of the buildiolume after this floo

REFERENCES

1- Zifeng Tower Building Fact Sheet, Download Date: 13,01,2012, http:/technicalpapers.ctbuh.org

2- Technical Paper, Authors: Besjak, C. M., McElhatten, B. J., Biswas, P., Publication Date: 2009, CTBUH Journal/ 2009 Issue II, http:/technicalpapers.ctbuh.org

3- SOM (Skidmore, Owings & Merill), website of the building in the SOM internet page, http://www.som.com/content.cfm/zifeng_tower

4- Bustler, http://www.bustler.net/index.php/article/adrian_smith_honored_with_ctbuh_lifetime_achievement_award_for_supertall_bu/

5- Zhongjing, http://www.zjmarble.com/zjen/gcal_show.asp?id=13 6- Taranath, B., Steel, Concrete and Composite Design of Tall Buildings, New York, McGraw-Hill

Book Company, 19987- Smith, B. S. and Coull, A., Tall Building Structures: Analysis and Design, New York: Wiley, 19918- Gunel, M. H., and Ilg n, H. E., Yüksek Binalar Ta y c Sistem ve Aerodinamik Form, Ankara,

METU, Dept. of Arch, 2010.9- China Builders, http://www.chinabuilders.net/nanjing-greenland-financial-center/ 10- All the Most, http://www.allthemost.com/tallest-building

jompo

l, A., Tall Buildin Strucd Ilg n, H. E., Yüksek Binala

of Arch, 2010Builders, http://www.chinabuilder

l the Most, http://www.allthe

., Publication Dat

n the SOM internet page

adrian_smith_honored_with_ tb

show.asp?id=1sign of Tall B

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