taipai_101

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Population: 23 M

GDP per Capita: 27,572

(24)

TAIWAN

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Taipei 101 formerly known as the Taipei World Financial Center , is

a landmark skyscraper located in Xinyi District, Taipei, Taiwan. The building ranked

officially as the world's tallest from 2004 until the opening of the BurJ Khalif in Dubai in 2010.

Taipei 101, designed by C.Y. Lee& partners and constructed primarily

by Samsung Engineering & Construction

Taipei 101 comprises 101 floors above ground and 5 floors underground. The

building was architecturally created as a symbol of the evolution of technology and

Asian tradition The tower is designed to withstand typhoons and earthquakes.

A multi-level shopping mall adjoins the tower houses to hundreds of fashionable

stores, restaurants and clubs.

INTRODUCTION

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The skyscraper Taipei 101 incorporates both environmental and economical benefits

through the choice of its materials. This building is supported by an enormous37,000 cubic yards and 16¶-5´ (5m) thick fly-ash concrete mat foundation

supported by 380 4¶-11´ (1.5m) diameter concrete piles. These concrete piles

are embedded with high-strength concrete and extend over 98ft (30m) into the

bedrock. Above ground level, the building includes eight blocks of eight floors in the

shape of opening flowers.

The Taipei 101 floor plan consists of a square shape with saw-tooth corners,

recycled steel floor framing, a square braced frame central core, and massive

outrigger columns on each face.

Wind tunnel testing at RWDI, Guelph, Ontario, Canada was essential inconsidering typhoon conditions. It was concluded after the wind tunnel test that

these ³saw-toothed corners,´ dramatically reduce vortex shedding that

generates wind sway. This, in turn, reduces the acceleration and inter-story drifts

of the building, enhancing its occupants¶ comfort and health.

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Gravity systems

The tower superstructure is a steel frame with ¶H· shape steel beams actingcomposite with the floor slab through Shear studs, and floor concrete actingcomposite with metal deck.

Lateral (wind and seismic) systems

Lateral forces will be resisted through a combination of braced frames in thecore, outriggers from core to Perimeter, ¶super-columns· and moment resistingframes in the perimeter and other selected locations.

Design of super-columns

To minimize the member sizes and thickness used, high strength steel plateswith 60 ksi yield strength was Specified for the super-columns, even for steelplate up to 80 mm (3.15 inches) thick. Ductility in the steel plates And framingmembers was ensured by specifying the yield ratio, through-thicknesscharacteristics and Weld ability.

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A total of 8 compositesuper-columns with the size

up to 8¶-0´ X 10¶-0´ were

used in the Taipei

101 tower

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The elevation view of Taipei 101 consists of a six

story 71ft (21.5m) deep basement, a 25 story

truncated pyramidal base, and eight 8-story flared

modules, topped with an observation deck along with

a spire.

The building contains a braced core, lower multi-

story outriggers, and single-story outriggers at the

base of each module, which all consists of recycled

steel.

also displays the moment frames that work with the

braced core to create a ³dual system´ which is very

effective for seismic resistance.

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�Is it able to withstand the constant threat of

earthquakes?

� Is it able to withstand the constant threat of

typhoons and high winds?

� How can the building¶s sway can be

controlled?

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STEEL MEGA COLUMNS

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TUNED MASS DAMPER

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1.Ground to highest architectural structure (spire): 509.2 metres (1,671 ft).

Previously held bythe Petronas Towers 452 m (1,483 ft).

2.Ground to roof: 449.2 m (1,474 ft). Formerly held by the Willis Tower 442 m

(1,450 ft).

3.Ground to highest occupied floor: 439.2 m (1,441 ft). Formerly held

by the Willis Tower 412.4 m (1,353 ft).

4.Fastest ascending elevator speed: designed to be 1010 meters per minute,which is 16.83 m/s (55.22 ft/s) (60.6 km/h, 37.7 mi/h). Now it has been

succeeded by Burj Khalifa's elevator whose speed of ascending is 18 m/s

(64 km/h).

5.Largest countdown clock : Displayed on New Year's Eve .

Tallest sundial .

6. could withstand :gale winds of 60 m/s (197 ft/s, 216 km/h, 134 mph) and thestrongest earthquakes likely to occur in a 2,500 year cycle

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