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Petronas Towers, Malaysia

Ben Berwick

Charles Cunliffe

Chris Delia

Peter Gorgas

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Petronas Towers

• Location: Kuala Lumpur, Malaysia

• Constructed: 1992–1998

• Use: Office

• Antenna or spire: 451.9 m (1,482.6 ft)

• Roof: 378.6 m (1,242.1 ft)

• Top floor: 375.0 m (1,230.3 ft)

• Floor count: 88

•

Floor area: 395,000 m

2

(4,252,000 sq ft)(1& 2)

• Elevators: 78 (1 & 2)

• Cost: 1,6 billion

• Features a Skybridge

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Site Exploration

• More Than 200 Borings

 – 8m on center

• 260 In-Situ Pressure meter Tests

• 2, 3500-ton Pile Load Tests

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Site Details

• Original Proposed Location:

 – Porous Subterranean Limestone Cliff

• Extended from surface to a depth of 395ft.

•Susceptible to sinkholes

• Moved 200ft. to avoid Limestone Cliff

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Site Details

• New Location

 – Limestone Rock Formations

• Significant Amount of Cavities

 – “Kenny Hill” Formation

• Stiff Sandy Layer

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Ground Improvement

• Fluid Grouting of Limestone Bedrock

 – 2300 m

3

of fluid grout in Tower 1, and

1100 m

3

in Tower 2

•Compaction Grouting of Slump Zone

 – 900 m

3

of compaction grout

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Foundations

• 208 Rectanglular Barrette Foundations

 – 1.2 m x 2.8 m plan dimensions

 – 60m to 130m deep

 – Post Grouted

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Summary

• Structure Overview

• Site Exploration

 –  200 borings

 – Pile load tests

 –  Pressure meter test

• Site Details

 –  Limestone

 – 

Kenny Hill

• Ground Improvement

 –  Fluid grouting

 –  Compaction grouting

•Foundations

 –  200 rect. barrette piles

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References

• “THE PETRONAS TOWERS, KUALA LUMPUR, MALAYSIA,” January

2010. <http://isites.h

arvard.edu/fs/docs/icb.topic30774.files/2-8_Petronas.pdf>.

• “THE PETRONAS TWIN TOWER,” January 2010.

<http://mcleon.tripod.com/tower2.htm>.

• “Tallest buildings in the world,” January 2010.

<http://www.herdaily.com/travel/4941/tallest-buildings-in-

the-world.html>.

• “Petronas Towers Base,” January 2010.

<http://www.thepetronastowers.com/petronas-towers-

base/>.

• “Geotechnical Challenges in the Design and Construction of

Petronas Towers,” Clyde N. Baker, P.E., S.E., Hon.M.ASCE.

ASCE. Geo-Strata, ASCE (pdf).

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QUESTIONS?