外贴预应力FRP片材加固混凝土梁抗弯承载力计算  

Calculation of flexural strength of RC beams strengthened with bonded prestressed FRP laminates

作　　者：王兴国[1] 周朝阳[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《哈尔滨工业大学学报》2006年第8期1359-1361,1365,共4页Journal of Harbin Institute of Technology

基　　金：铁道部科技研究开发计划项目(2002G043)

摘　　要：基于已有的试验结果,根据不同情况下的破坏型态,推导了外贴预应力FRP片材的RC梁截面受弯承载力公式,其计算结果与试验值吻合较好.在此基础上,就外贴预应力FRP片材抗弯加固设计方法进行了初步的探讨.On the basis of experimental investigations, different failure modes are given for RC beams strengthened with bonded pretensioned laminates of fiber - reinforced polymer （FRP） according to concrete strain at compression zone. The expressions are derived for calculating the ultimate strength in flexure and the predicted results are in good agreement with the measured values. Further the design procedure is put forward for enhancing flexural strength of RC members by externally bonding prestressed FRP Laminates.

关 键 词：加固 预应力 FRP 混凝土梁 受弯承载力 

分 类 号：TU375.1[建筑科学—结构工程] TU746.3