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| 非规整刚接T梁桥荷载横向分布计算方法 | |
| 引用本文： | 陈记豪,裴松伟,赵顺波,管俊峰,张巍,刘云. 非规整刚接T梁桥荷载横向分布计算方法[J]. 科学技术与工程, 2016, 16(20) |
| 作者姓名： | 陈记豪 裴松伟 赵顺波 管俊峰 张巍 刘云 |
| 作者单位： | 华北水利水电大学 土木与交通学院,华北水利水电大学 土木与交通学院,华北水利水电大学 土木与交通学院,华北水利水电大学 土木与交通学院,华北水利水电大学 土木与交通学院,华北水利水电大学 土木与交通学院 |
| 基金项目： | 郑州市科技攻关项目(既有桥梁加宽改造中非规整装配式简支T梁桥荷载横向分布计算理论及应用研究),华北水利水电大学高层次人才启动项目(2012050),华北水利水电大学青年科技创新人才支持计划 |
| 摘 要： | 荷载横向分布系数是既有T梁桥加宽设计的关键问题之一。根据刚接梁法基本假定,应用力法原理推导了刚接梁法一般力法方程,可用于由截面特性和间距不同的T梁组成的非规整刚接T梁桥荷载横向分布计算。实例计算表明该方法的计算精度满足工程要求。同时对一座非规整加宽T梁桥进行了计算分析,计算结果与空间实体有限元结果吻合较好。基于荷载横向分布分析和新旧规范对比,分析了加宽方案。 |
| 关 键 词： | T梁桥 加宽 刚接梁法 力法原理 荷载横向分布 |
| 收稿时间： | 2016-03-04 |
| 修稿时间： | 2016-04-08 |
Method for calculating vehicl load transverse distribution of un-normalizer T-girder bridge |
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| CHEN Ji-hao,PEI Song-wei,ZHAO Shun-bo,GUAN Jun-feng,ZHANG Wei and LIU Yun. Method for calculating vehicl load transverse distribution of un-normalizer T-girder bridge[J]. Science Technology and Engineering, 2016, 16(20) | |
| Authors: | CHEN Ji-hao PEI Song-wei ZHAO Shun-bo GUAN Jun-feng ZHANG Wei LIU Yun |
| Affiliation: | School of Civil Engineering and Communication,North China University of Water Conservancy and Hydroelectric Power,School of Civil Engineering and Communication,North China University of Water Conservancy and Hydroelectric Power,School of Civil Engineering and Communication,North China University of Water Conservancy and Hydroelectric Power,School of Civil Engineering and Communication,North China University of Water Conservancy and Hydroelectric Power,School of Civil Engineering and Communication,North China University of Water Conservancy and Hydroelectric Power |
| Abstract: | Calculating for transverse distribution coefficient of vehicle load on T-girder bridge is one of key problems in design of widened bridge. On the basis of rigid-jointed girder theory and mechanical method, the general force equations for rigid-jointed girder method are deduced, which may be used for calculating load transverse distribution influence line of arbitrary T-girder bridge with girders in different cross-section properties or space. Some cases study demonstrates that the calculation precision completely meets the project requirements. And a un-normalizer widened T-girder bridge is also analysed, the results agree with the spatial finite element method well. Finally,widening schemes are analysed based on analysing the vehicle load transverse distribution and contrasting the new criterion with the old one. |
| Keywords: | T-girder bridge widening rigid-jointed girder mechanical method transverse distribution of load |
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