斜腿刚架拱桥微弯板的病害原因分析  

Research into the Deteriorations of Frame Arch Bridge Slabs with a Slightly Curved Bottom

作　　者：谭德盼[1] 姜海波[1] 何柏青 吕艳 

机构地区：[1]广东工业大学建设学院,广东广州510006 [2]广州市公路勘察设计院,广东广州510510

出　　处：《广东工业大学学报》2007年第3期88-91,共4页Journal of Guangdong University of Technology

基　　金：广东省自然科学基金资助项目(20010018)

摘　　要：介绍了斜腿刚架拱桥微弯板的常见病害,并通过微弯板进行局部有限元应力分析,指出微弯板厚度过薄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斜腿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.The common deteriorations of slabs with a slightly curved bottom are introduced. By analyzing local finite element stress, deteriorations of slabs are considered to be caused by the lack of slab thickness and arch-rib lateral stiffness. The methods for preventing further deteriorating and the maintaining strategies are proposed ,which are validified by the finite element analysis.

关 键 词：微弯板 病害 应力分析 

分 类 号：U448.232[建筑科学—桥梁与隧道工程]