Non-stationary Buffeting Response Analysis of Long Span Suspension Bridge Under Strong Wind Loading  

作　　者：Wenfeng Huang Kongqing Zou 

机构地区：[1]School of Civil Engineering, Hefei University of Technology, Hefei 230009, China [2]Department of Structure Engineering of Xuancheng Campus, Hefei University of Technology, Xuancheng 242000, Anhui, China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2016年第6期9-16,共8页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No.51408174);Anhui Provincial Natural Science Foundation(Grant No.1408085QE95);China Postdoctoral Science Foundation(Grant No.2013M540511 and 2015T80652);Key University Science Research Project of Anhui Province(Grant No.KJ2016A294)

摘　　要：The non-stationary buffeting response of long span suspension bridge in time domain under strong wind loading is computed. Modeling method for generating non-stationary fluctuating winds with probabilistic model for non-stationary strong wind fields is first presented. Non-stationary wind forces induced by strong winds on bridge deck and tower are then given a brief introduction. Finally,Non-stationary buffeting response of Pulite Bridge in China,a long span suspension bridge,is computed by using ANSYS software under four working conditions with different combination of time-varying mean wind and time-varying variance. The case study further confirms that it is necessity of considering non-stationary buffeting response for long span suspension bridge under strong wind loading,rather than only stationary buffeting response.The non-stationary buffeting response of long span suspension bridge in time domain under strong wind loading is computed. Modeling method for generating non-stationary fluctuating winds with probabilistic, model for non-stationary strong wind fields is first presented. Non-stationary wind forces induced by strong winds on bridge deck and tower are then given a brief introduction. Finally, Non-stationary buffeting response of Pulite Bridge in China, a long span suspension bridge, is computed by using ANSYS software under four working conditions with different combination of time-varying mean wind and time-varying variance. The case study further confirms that it is necessity of considering non-stationary buffeting response for long span suspension bridge under strong wind loading, rather than only stationary buffeting response.

关 键 词：NON-STATIONARY long span suspension bridge strong wind loading time domain analysisCLC number： TU311.3 Document code： A Article ID： 1005-9113（2016）06-0009-08 

分 类 号：TU311.3[建筑科学—结构工程]