基于有限元模型的荷载横向分布修正法  

The Modification of the Load Transverse Distribution Based on the Finite Element Model

作　　者：董旭[1] 

机构地区：[1]山东交通学院土木工程学院,山东济南250357

出　　处：《山东交通学院学报》2012年第3期43-47,共5页Journal of Shandong Jiaotong University

基　　金：西部交通建设科技项目(200731881232)

摘　　要：基于有限元模型的桥梁荷载横向分布修正法,运用模型计算通用程序建立桥梁的有限元模型。通过对实测挠度与模型计算挠度的相关性分析及反复迭代,最终求得不同刚度的在役桥梁各片梁的荷载横向分布系数。经过模型桥试验的验证分析,该方法可较准确地求解桥梁在使用阶段的荷载横向分布。In this article, the finite element model of bridge is established by using the model calculation based on the modification of the bridge load transverse distribution model. In the correlation analysis and repeated iteration of the measured deflection and utility program of the of the finite element the model calculation deflection, the load transverse distribution coefficient of all the beams of the in-service bridges of the different stiffness is finally solved. Through the verification analysis of the model bridge test, this method can accurately solve the load transverse distribution of the existing bridge.

关 键 词：在役桥梁 荷载横向分布 模型修正法 相关性分析 模型桥试验 

分 类 号：U441[建筑科学—桥梁与隧道工程]