Experimental study of aerodynamic interference effects on aerostatic coefficients of twin deck bridges  

作　　者：Zhiwen LIU Zhengqing CHEN Gao LIU Xinpeng SHAO 

机构地区：[1]Wind Engineering Research Center,Hunan University,Changsha 410082,China [2]China Highway Planning and Design Institute Consutants,INC.,Beijing 100000,China [3]Shandong Provincial Communications Planning and Design Institute,Jinan 250000,China

出　　处：《Frontiers of Structural and Civil Engineering》2009年第3期292-298,共7页结构与土木工程前沿（英文版）

基　　金：The work was supported by the National Natural Science Foundation of China(Grant No.50608030).

摘　　要：The aerodynamic interference effects on aero-static coefficients of twin deck bridges with large span were investigated in detail by means of wind tunnel test.The distances between the twin decks and wind attack angles were changed during the wind tunnel test to study the effects on aerodynamic interferences of aerostatic coefficients of twin decks.The research results have shown that the drag coefficients of the leeward deck are much smaller than that of a single leeward deck.The drag coefficients of a windward deck decrease slightly com-pared with that of a single deck.The lift and torque coefficients of windward and leeward decks are also affected slightly by the aerodynamic interference of twin decks.And the aerodynamic interference effects on lift and torque coefficients of twin decks can be neglected.

关 键 词：twin decks aerodynamic interference effects aerostatic coefficients wind tunnel test 

分 类 号：U44[建筑科学—桥梁与隧道工程]