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.
出处
《广东工业大学学报》
CAS
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)
关键词
微弯板
病害
应力分析
slab with slightly curved bottom
deterioration
stress analysis