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Abstract

Reliable seismic design is necessary for long-span suspension bridges. The dynamic characteristics of long-span suspension bridges are very different from those of short-span bridges. Long-span suspension bridges have basic periods longer than 10 sec, and more than a hundred natural periods closely distributed in the range 0.3 to 5 sec. The present bridge seismic design code in China is not suitable for long-span suspension bridges. Taking the Tsing Ma bridge, Hong Kong, and the Humen bridge as examples, the paper discusses the effects on suspension bridge responses of the response spectrum segments longer than 5 sec, methods of combining the maximum modal responses, the numbers of modes included in mode combinations, the vertical components of earthquake ground acceleration recordings (accelerograms), and the time durations of accelerograms.

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References

AASHTO (1996), “Standard specification for highway bridges.”

Beard

A.S.

and Young

J.S.

(1995). “Aspects of the design of Tsing Ma bridge”, Proceedings of Bridges into the 21st Century Hong Kong, 93–100.

Chinese Ministry of Communication (1990), “Seismic design code of highway engineering JTJ004-89”, Jiaotong Press, Beijing, China (in Chinese).

Clough

R.W.

and Penbzien

(1993), “Dynamics of structures”, McGraw-Hill, Inc. New York.

Der Kiureghian

and Neuenhofer

(1992), “Response spectrum method for multi-support seismic excitation”, Earthquake Engineering Structural Dynamics 21, 713–721.

Honshi Bridge Authority (1977), “Seismic design standard and commentary”, (in Japanese).

T.Y. Lin International (1990) “Golden Gate seismic evaluation”, private research report.

Tsinghua University (1997), “Preliminary report on the dynamic testing/measurement on complete Tsing Ma bridge after the completion of pavement surface”, private research report.

Wilson

E.L.

and Der Kiureghian

(1981), “A replacement for the SRSS method in seismic analysis”, Earthquake Engineering Structural Dynamics 9(2), 187–191.

10.

Yasuda

, Fujita

and Ikematsu

(1990) “Examination of the earthquake resistant design for super structure of Akashi-Kaiko bridge”, Honshi Technical Report 14(56) 16–25 (in Japanese).

11.

Zheng

M.Z.

and Yang

G.Z.

(1998), “The Humen Pearl river bridge”, Structural Engineering International 8(2), 93–95.

Seismic Analysis of Suspension Bridge Superstructures

Abstract

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References