波纹钢腹板体外预应力组合梁全过程分析  

Ultimate strength analysis and test analysis for externally prestressed composite beams with corrugated steel webs

作　　者：宋建永[1] 张树仁[1] 王宗林[1] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨150090

出　　处：《哈尔滨工业大学学报》2003年第5期590-593,共4页Journal of Harbin Institute of Technology

摘　　要：为研究波纹钢腹板体外预应力组合梁从加载到破坏全过程的力学性能 .将波纹钢腹板经等效处理计入到梁的整体抗弯分析之中 ,通过截面变形曲率沿纵向积分求解梁体变位 ,同时建立体外索与梁体变位的变形协调方程 ,采用反复迭代法求解梁体在任意荷载下的变形和应力 ,分析中计入了材料非线性影响 ,并在此基础上编制全过程分析程序 .最后分析了波纹腹板对梁抗弯能力的影响 。The mechanical behavior of externally prestressed composite beams with corrugated steel webs is analysed using an all the way through the nonlinear analysis program with the nonlinear influence of material taken into account. Stress and strain of concrete, reinforcement and tendon are obtained for the whole process from loading to failure and the bending capability of corrugated steel webs is calculated and evaluated.

关 键 词：波纹钢腹板 体外预应力 组合梁 反复迭代法 抗弯能力 全过程分析 力学性能 梁体变位 变形协调方程 桥梁工程 

分 类 号：U448.216[建筑科学—桥梁与隧道工程] U441[交通运输工程—道路与铁道工程]