梁格法在截面转换加固T型梁桥中的应用  

Application of Grillage Method to Reinforcement with the Section Changing Method for T-Girder Bridge

作　　者：戴灿[1] 周建庭[1] 杨圣超[2] 宁德飚 

机构地区：[1]重庆交通大学,重庆400074 [2]北京市市政工程研究院,北京100037 [3]云南省公路科学技术研究所,云南昆明650051

出　　处：《重庆交通大学学报（自然科学版）》2009年第3期515-517,542,共4页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(50608072)

摘　　要：在基本原理阐述的基础上,用梁格法分析了截面转换加固T型梁桥的力学性态,并结合具体的实例和常规的平面杆系有限元模型计算分析方法进行了对比。对比结果表明,采用梁格法分析截面转换加固T型梁桥是有效的。该处理方法可望对实践起到一定的指导作用。Grillage method is an effective method for spatial analysis on bridge structure. According to the principle of the grillage method, the mechanical behavior of reinforcement with section changing method for T-girder bridge is analyzed. Combining with the specific engineering example, the contrasting analysis is carried out between the grillage method and 2D beam finite element method. The eontrastive results show that the application of grillage method to the reinforcement with section changing method for T-girder bridge is effective. The dealing measures proposed are promising to offer certain guide to the practice.

关 键 词：梁格法 截面转换 加固 T型梁 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]