大跨度钢管混凝土桁式拱桥结构非线性分析  

Nonlinear analysis of large span CFST truss arch bridge

作　　者：王百成[1] 崔军[2] 王景波[1] 

机构地区：[1]黑龙江工程学院,黑龙江哈尔滨150050 [2]杭州市城市建设科学研究所,浙江杭州310006

出　　处：《世界地震工程》2004年第1期122-125,共4页World Earthquake Engineering

摘　　要：同时考虑了几何非线性和材料非线性等因素对大跨度钢管混凝土桁式拱桥进行结构非线性分析,结果表明对这种大跨(跨径大于300m)、宽跨比小(接近1/20)的钢管混凝土桁式拱桥,几何非线性和材料非线性的影响均较大,在设计和施工时不应忽略。Considering geometrical nonlinearity and material nonlinearity, large span CFST arch bridge has been analyzed in this paper. The results show that the influence of both the nonlinearities is remarkable for large span(more than 300m) and small ratio of width to span (about 1/20).Nonlinearity must be considered in calculating structural internal forces of large span CFST arch bridge.

关 键 词：钢管混凝土 拱桥 非线性 大跨 荷载 

分 类 号：TU435[建筑科学—岩土工程] TU375.5[建筑科学—土工工程]