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Experimental Study of Aerodynamic Interference Effects on Do...

Experimental Study of Aerodynamic Interference Effects on Double Thin-Walled Hollow Pier in Tandem Arrangement

作     者:Jie Wang~(1,2,a),Jinyun Zhao~(3,b) and Jianxin Liu~(2,c) 1 Key Laboratory of Structural Engineering and Earthquake Resistance, Xi'an Univ of Arch.& Tech.,Xi'an,Shanxi,710055,China 2 Wind Tunnel Laboratory,Chang'an University,Xi'an,Shanxi,710064,China 3 Road and Bridge Department,Jilin Communications Polytechnic, Changchun,Jilin,130012,China 

会议名称:《创新、安全与可持续发展——2011中国(西安)国际建筑科技大会》

会议日期:2011年

学科分类:081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基  金:supported by the Youth Natural Science Foundation of Shaanxi Province(2011JQ7009) Research Program of Education Department of Shaanxi Province (2010JK637) Leading Academic Discipline Project Special funds of Shaanxi Province(E01004) Youth Science and Technology Foundation of Xi’an University of Architecture and Technology (DA01088) 

关 键 词:Double-width parallel bridge Double thin-walled hollow pier Aerodynamic interference effects Aerostatic coefficients Wind tunnel test 

摘      要:Against the problem of the aerodynamic interference effects on aerostatic coefficients between parallel continuous rigid frame bridges with high-pier and long-span,the aerodynamic interference effects on aerostatic coefficients of double thin-walled hollow pier in the parallel long-span continuous rigid frame bridges were investigated in details by means of wind tunnel *** space between the two piers and wind direction angles were changed during the wind tunnel test to study the effects on aerodynamic interferences of aerostatic coefficients of twin piers. The test got aerostatic coefficients of 8 *** research results have shown that the aerodynamic interference effects on aerostatic coefficients of double thin-walled hollow pier in parallel bridges can not be *** aerodynamic interference effects on parallel bridge pier is shown mainly as follows:The tandem interval and wind direction angles are important factors affecting interference *** drag coefficient of pier downstream dropped and the drag coefficient of pier upstream changed but Not change *** are also the aerodynamic interference effects of lateral force coefficient and torque coefficient between the piers upstream and *** effects upstream are smaller and the effects downstream are larger.

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