大跨度钢管混凝土拱桥静风稳定性计算分析  

Calculation and Analysis of Static Wind Stability of Long Span Concrete-Filled Steel Tube Arch Bridge

作　　者：于洪刚[1] 葛耀君[1] 张伟[1] 杨咏昕[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《桥梁建设》2007年第2期32-34,42,共4页Bridge Construction

基　　金：国家自然科学基金项目(50278069)

摘　　要：三门口跨海大桥北门大桥为主跨270 m的钢管混凝土中承式拱桥,对该桥静力系数进行试验和数值分析,并对拱肋三分力系数进行雷诺数修正。验算大桥静风稳定性,结果表明,无论在施工阶段,还是在成桥状态,抗风稳定性均满足要求。The Beimen Bridge of Sanmenkou Sea-Crossing Bridge is a half-through concretefilled steel tube arch bridge with a main span 270 m. The static force coefficients of the Bridge were tested and numerically analyzed, the three-component coefficients of its arch ribs were modified by Reynolds numbers and its static wind stability was checked by calculstion. The results indicate that the wind-resistant stability of the Bridge can meet the requirements both at the construction and completion stages.

关 键 词：钢管混凝土拱桥 风载荷 静力系数 有限元法 稳定 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]