板桁组合结构纵向力分配的研究  

Study on the longitudinal force distribution in steel truss composite girder

作　　者：陈玉骥[1] 熊玉良[2] 

机构地区：[1]中南大学土建学院 [2]中南大学土木与建筑学院

出　　处：《山西建筑》2004年第6期119-120,共2页Shanxi Architecture

基　　金：铁道部科技研究开发计划项目99G33

摘　　要：根据下弦杆和桥面系的变形协调条件 ,推导了钢桁结合梁第一系统纵梁轴力与下弦杆轴力比值的公式。并取算例进行了计算 ,结果与试验结果和有限元结果都基本吻合 ,证明了公式的可靠性。According to the deformation compatibility con di tions of bottom chord bar and bridge floor system the axial force ratio formula between longitudinal girder in the first system of steel truss composite girder and bottom chord bar is derived. The reliability of this formula verified based upon example calculation, which is in good agreement with the experimental and f inite element analysis results.

关 键 词：钢桁结合梁 纵向力 变形 抗震 分配 桥梁结构 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]