桥梁荷载横向分布系数研究  

Research on Bridge Load Transverse Distribution Coefficient

作　　者：韩劲龙 郝艳广 刘相良 

机构地区：[1]中交武汉港湾工程设计研究院有限公司,武汉430040 [2]武汉港湾工程质量检测有限公司,武汉430040

出　　处：《建材世界》2014年第3期49-51,共3页The World of Building Materials

摘　　要：针对相同桥宽不同跨径的T梁桥荷载横向分布特性不同的现象,基于数学模型与有限元模型对比的思路,采用MIDAS大型有限元软件,建立5片T梁的空间有限元分析模型,分析不同主梁跨径的横向分布系数,并与比拟正交异性板法计算值相比较的方法,对不同跨径的T梁桥荷载横向分布系数进行了研究,得出以下结论:当主梁跨径小于30m时,采用比拟正交异性板法计算值与空间有限元模型计算值相差不大;当主梁跨径大于30m时,采用比拟正交异性板法计算值与空间有限元模型计算值相差较大。Based on the load of T beam bridge transverse distribution characteristics of the same bridge width of dif-ferent span,mathematical model and finite element model based on the idea of the comparison,this paper established a finite element analysis model of 5 pieces of T beams through MIDAS,analysed different span length of transverse dis-tribution coefficient.Compared to the value calculation method with the method,the load transverse distribution factors of different span T beam bridge is studied.Reaches show that when the span is less than 30 m,the orthotropic plate method and spatial finite element model come to the same conclusion;when the span is more than 30 m,the orthotro-pic plate method and space finite element model to calculate the value has big difference.

关 键 词：横向分布 空间有限元 比拟正交异性板法 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]