粘贴钢板加固钢筋混凝土矩形受弯构件的非线性有限元数值模拟  

Nonlinear Numerical Simulation of Rectangular RC Members with Steel-adhered Reinforcement in Bend

作　　者：杜青[1] 蔡美峰[1] 张献民[2] 李晓会[2] 

机构地区：[1]北京科技大学土木工程学院,北京100083 [2]河北工业大学土木工程学院,天津300132

出　　处：《公路交通科技》2005年第5期97-99,107,共4页Journal of Highway and Transportation Research and Development

基　　金：河北省交通厅科学基金资助项目(Y 0015)

摘　　要：利用有限元方法建立非线性有限元模型,模拟计算粘钢加固的钢筋混凝土矩形截面受弯构件的受力、破坏全过程。在分析中利用单元生死技术,对构件在受荷载加固和未受荷载加固的不同情况进行比较,有限元计算结果表明:粘钢加固钢筋混凝土受弯构件的加固效果是明显的,同时加固效果与被加固构件破损程度和加固方法有关。A nonlinear element model is established to simulate the rectangular RC member strengthened by steel-adhered strengthening method. The mechanical behavior is studied under different load conditions.By use of element birth and death in the analysis, comprison is made between the preloaded member (open crack) by the steel-adhered strengthening and the unloaded member. The result demonstrates the effect of the Steel-adhered strengthening is obvious and has something to do with damage degree of the member and the reinforcing method.

关 键 词：粘钢加固 钢筋混凝土 受弯构件 非线性有限元法 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]