钢混组合式刚构-连续组合梁桥设计方案结构分析  

Structural Analysis ofa Steel-Concrete Composite Rigid Frame- Continuous Composite Beam Bridge

作　　者：高波[1] 刘伟[1] 

机构地区：[1]江苏省交通规划设计院股份有限公司,江苏南京210005

出　　处：《上海公路》2014年第1期39-43,共5页Shanghai Highways

摘　　要：钢混组合式刚构-连续组合梁桥是近年出现的一种较为新型的结构形式,跨越能力较大,且能有效缓解一般连续刚构桥成桥后主跨因混凝土收缩、徐变导致主墩产生较大弯矩及中跨下挠,在200 m左右跨径区间具有很强的竞争优势。现结合某大桥的钢混组合式刚构-连续组合梁桥的方案设计,对此结构形式进行结构受力分析,以确认其可行性。The steel-concrete composite rigid frame-continuous composite beam bridge has been considered as a new type of structure in recent years, which is characteristic of large spanning ability. The structure can also effectively alleviate the larger bending moment of main pier and the excessive deflection in the midspan caused by shrinkage and creep of concrete in the general continuous rigid frame bridge after completion state. These characteristics determine its strong competitive advantage in 200m span interval. With the conceptual design of a steel-concrete composite rigid frame-continuous composite beam bridge, this paper studies on the structure stress analysis in order to confirm the feasibility.

关 键 词：钢混组合 刚构-连续组合 混凝土收缩 混凝土徐变 

分 类 号：U448.216[建筑科学—桥梁与隧道工程]