梁格分析理论的装配式简支梁桥整体结构分析  

Analysis of Integral Structure for Prefabricated Hinged Simply-supported Girder Bridge Based on Space Grillage Theory

作　　者：卢彭真[1] 赵人达[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《武汉理工大学学报》2010年第2期52-55,共4页Journal of Wuhan University of Technology

基　　金：教育部优秀青年教师基金(教人司[2000]11号)

摘　　要：铰结板梁桥结构的分析计算通常采用横向分布系数的理论来确定每一根梁在荷载作用下分配到的荷载,然后把所分配到的荷载按影响线或影响面加载到所求解的梁上进行结构分析,该方法以手算为主,效率较低。提出基于梁格理论结合SAP2000,利用铰结板梁传递剪力不传递弯矩的结构特点,对整体简支板梁桥进行空间梁格体系模拟分析,并且通过实例计算,结果表明该计算方法简便,直接可得结构计算内力,具有很高的工程使用价值。Analysis calculation of the hinged simply-supported girder Bridge adopts the theory of lateral distributing coeffi- cient to make sure the distributing loading of the every beam under out loading. In order to do the structural analysis, the dis- tributed loading is loaded on the beam according to the influence line or influence surface. This method adopts mainly the calcu- lation of the hands-work, and the efficiency of this method is relatively low. Based on the grillage theory and the procedure SAP200, authors make use of the structural property of hinged plate or beam transfer shear force but not pass moment, and au- thors analyze the model of the space grillage of whole bridge structure. In addition, through the analysis of the engineering ap- plication, the results of the analysis show that this paper＇s method is simple and exact, and directly obtains structural internal force. The research results indicate that the calculation precision of the method is high and have high using value.

关 键 词：铰结板梁桥 梁格理论 整体有限元分析 刚度等效 

分 类 号：TU37[建筑科学—结构工程]