预应力混凝土刚构-连续梁组合体系桥梁合拢次序分析  

Analysis of Closure Sequences of the Prestressed Concrete Rigid frame-continuous Combined-system Bridge

作　　者：郝翠[1] 曹新垒[1] HAO Cui;CAO Xinlei(Anhui Transport Consulting&Design Institute Co.,Ltd,Hefei 230088,China)

机构地区：[1]安徽省交通规划设计研究总院股份有限公司

出　　处：《安徽建筑大学学报》2019年第4期49-52,共4页Journal of Anhui Jianzhu University

摘　　要：以茨淮新河大桥为工程背景,论述了该类结构体系特点桥梁的合拢次序的一般规律,计算分析了三种不同合拢次序对主梁成桥线型、运营阶段应力分布及刚构主墩墩顶位移等的影响。按照既定合拢次序,可使主梁运营状态下受力更为均匀合理。对同类型桥型的计算分析、施工也有一定参考价值。In the engineering background of Cihuai new river bridge,this study discussed the general rule of closure se quences of this kind of bridge with the same system characteristics of structure,and influence on alignment under the secondary dead load,stress distribution at operational stage and the pier displacement of three different closure sequences are calculated and analyzed.By establishing the closure sequences,stress distribution at operational stage is more reason able.It is a valuable reference for calculation analysis and construction of similar structure.

关 键 词：预应力混凝土刚构-组合体系 多跨 合拢次序 主梁受力 墩顶位移 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]