文档介绍：苏通大桥连续刚构抗风试验陈艾荣, 许福友,周志勇(同济丈学士木工程防灾国家重点实验蜜。.1二海200092) 453· 摘要:介绍r茄:通人桥连续刚构主梁静气动力系数确定、风场模拟、气弹模型设计、气弹模型风洞试验和风载内/J汁算等内容。;在索流场和均匀流场中不同风偏角时风载位移盈容许范围内;没有观察到驰振不稳定振动现象;tgN:有发现明显的涡激共振现象。基于数值模拟计算和风洞试验结果计算得到的关键截面风载内力处于安全区域,因此苏通大桥连续刚构的抗风稳定性足向‘足够保证的。关键词:∞:通人桥;连续刚构:气弹模型; 抗风试验 WIND—RESISTANT EXPERIMENT oF CONTINUoUS RIGID FRAME oF SUToNG BRIDGE CHEN Ai-rong,XU Fu·you,ZHOU Zhi—yong Key Laboratory Reduction 200092) Abstract:The aerodynamic coefficients determination,wind fieldsimulation,aeroelastic model design、wind tunnel forcescalculation under wind loads ofthecontinHOUS rigid frame ofSutong Bridge are introduced experimental resultsindicate thatthedynamic characteristics simulation error almost negligible,and no displacements exceed safety limits under various wind loads,and thegalloping and obvious vortex·induced resonant oscillation phenomena are not observed inbothturbulent and smooth flows with several typicalyaw basisofnumerical simulation and experimental results,various forces of certain concerning sections are obtained,which are thewind—resistant stability of thecontinuous rigid frame ofSutong Bridge ensured sufficiently. Keywords:Sutong Bridge;continuous rigid frame;aeroelastic model;wind-resistant experiment 1引言苏通人桥连续刚构为并列的140+268+,, 辑缘{j醍