钢-混凝土组合连续梁桥动力响应试验研究

Study on dynamic response of steel-concrete composite continuous beam bridge

钢-混凝土组合梁桥动力响应有其特点,本文结合福州光明港钢-混凝土组合连续梁桥实际工程,开展环境激励及汽车动载激励试验,并应用有限元进行分析和研究,表明理论计算与实测的频率和振型等动力特性较吻合,同时进行组合作用、横向支撑连接、体外预应力等参数研究,为该类型组合连续梁桥的动力性能研究与工程设计提供参考。

The paper deals with the environment-stimulated and vehicle-stimulated dynamic tests carried out for Guangming steel-conerte composite continuous beam bridge in Fuzhou. The theoretical results by finite element software coincide with the test results in situ. And the parameters in regard to the composite action, cross brace effect and external prestressing etc. are analysized for further research of dynamic behavior and design of the type of composite continuous beam bridge.