机构地区: 同济大学土木工程学院桥梁工程系
出 处: 《桥梁建设》 1999年第2期1-4,共4页
摘 要: 首先提出一种新的求解大跨径悬索桥侧向风载效应的实用方法——修正的膜理论(这种方法综合考虑了风的三分力系数和主缆索力随风速变化的非线性效应),然后导出了有关计算公式,给出了计算流程图。最后,以虎门大桥为例进行了数值计算,并与其它方法进行了比较。 Firstly,a new method which is used to compute lateral wind effect for long span suspension bridges is proposed.The changes of coefficients of three components and cable tensions caused by wind forces are included in this method.Secondly,formula and flow chart are provided.Finally,numerical results are presented to demonstrate the accuracy and effectiveness of this new method.