Aerostatic and buffeting response characteristics of catwalk in a long-span suspension bridge

Yongle Li , Dongxu Wang , Chupeng Wu , Xinzhong Chen

Abstract

This study presents a comprehensive investigation of the aerostatic and buffeting response characteristics of a suspension bridge catwalk. The three-dimensional aerostatic response analysis was carried out taking into account the geometric nonlinearity and nonlinear dependence of wind loads on the angle of attack. The buffeting response analysis was performed in the time domain. The aerostatic and buffeting responses of the catwalk show strong coupling of vertical and lateral vibrations. The lateral displacement is the main component of the wind-induced static and buffeting response of the catwalk.

Key Words

catwalk; aerostatic response; buffeting response; suspension bridge

Address

Yongle Li, Dongxu Wang and Chupeng Wu — Department of Bridge Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
Xinzhong Chen — Wind Science and Engineering Research Center, Department of Civil and Environmental Engineering, Texas Tech University, Lubbock, Texas 79409-1023, USA

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