Study on Structural System of Sutong Bridge

Zhang Xigang1, Pei Minshan1, Yuan Hong1, Xu Liping2, Zhu Bin1

中国工程科学 ›› 2009, Vol. 11 ›› Issue (1) : 12 -17.

PDF (289KB)
中国工程科学 ›› 2009, Vol. 11 ›› Issue (1) : 12 -17.

Study on Structural System of Sutong Bridge

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Study on structural system of Sutong Bridge

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摘要

Sutong Bridge, whose layout is (100+100+300) +1088 + (300+100+100) m,marks the largest span of cable-stayed bridges in the world. The complex natural condition at the bridge site and the strict requirements for resistance of wind and seismic action make it crucial to choose a favorable structural system to assure the function and safety of the bridge. The comparison among several optional structural systems for Sutong bridge is illustrated. After detail analysis is carried out for viscous damper and hydraulic buffer, super liquid viscous damper with additional displacement limitation is designed for the first application in bridge engineering. The parameters for the damper is analyzed and studied and the dampers are installed successfully after required damper tests.

Abstract

Sutong Bridge, whose layout is [(100+100+300) +1 088 + (300+100+100)] m,marks the largest span of cablestayed bridges in the world. The complex natural condition at the bridge site and the strict requirements for resistance of wind and seismic action make it crucial to choose a favorable structural system to assure the function and safety of the bridge. The comparison among several optional structural systems for Sutong Bridge is illustrated. After detailed analysis is carried out for viscous damper and hydraulic buffer, super liquid viscous damper with additional displacement limitation is designed for the first application in bridge engineering. The parameters for the damper is analyzed and studied and the dampers are installed successfully after quality tests.

关键词

cable-stayed bridge / structural system / damper / damper parameter / displacement restraint

Key words

cable-stayed bridge / structural system / damper / damper parameter / displacement restraint

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Zhang Xigang1, Pei Minshan1, Yuan Hong1, Xu Liping2, Zhu Bin1 Study on Structural System of Sutong Bridge[J]. 中国工程科学, 2009, 11(1): 12-17 DOI:

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