某刚架拱桥微弯板病害分析及加固策略  

The Disease analysis and Reinforcement strategy of slight bending slab in a rigid-framed arch bridge

作　　者：刘永淼 

出　　处：《福建建设科技》2013年第3期80-82,共3页Fujian Construction Science & Technology

摘　　要：介绍了刚架拱桥微弯板的常见病害,并对微弯板进行局部有限元应力分析,指出微弯板边界条件的改变及拱片侧向刚度较弱是微弯板病害的主要原因。根据分析结果提出了刚架拱桥微弯板病害防治措施与对策,并用有限元分析证明措施的合理性。Common diseases of slight bending slab in rigid - framed arch bridge.are.presented in this paper. The main reason of slight bending slab diseases are derived from the changed boundary conditions and the weakened arch lateral stiffness by the local finite element anal- ysis（FEA）. According to the results of the FEA, the countermeasures of slight＇, bending slab diseases are represented. Finally , FEA resuits of the reinforced rigid - framed arch bridge are given.

关 键 词：刚架拱桥 微弯板 病害分析 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]