GFRP加固木梁抗弯性能的试验研究与理论分析  

Experimental study on bending behavior of timber beams reinforced with GFRP sheets

作　　者：王全凤[1] 李飞[1] 陈浩军[2] 黄奕辉[1] 杨勇新[1] 徐玉野[1] 

机构地区：[1]华侨大学土木工程学院,泉州362021 [2]中国华侨大学建筑土木(澳门)协会

出　　处：《建筑结构》2010年第5期50-52,107,共4页Building Structure

基　　金：澳门特别行政区科学技术发展基金项目(524/263/SAF/2008);泉州市科技计划项目(2006G7)

摘　　要：通过对9根矩形截面木梁的受弯静力试验,进行了玻璃纤维布(GFRP)加固木梁抗弯性能的研究,分析了加固梁的承载力、挠度等结构性能。试验结果表明,在木梁受拉区粘贴GFRP是提高木梁抗弯性能的有效方法。针对木梁的几种破坏现象,对加固木梁的破坏方式的界限破坏形态进行了分析,推导出GFRP加固矩形木梁抗弯极限承载力的计算公式。将计算结果与试验结果进行了比较,两者吻合良好。According to the static tests of 9 rectangular timber beams strengthened with GFRP sheets, the performance indexes, such as the bearing capacity, deflection of reference beams and reinforced beams, have been analyzed. The results show that GFRP sheets have a good strengthening effect for timber beams. According to several types destroyed states of timber beams, the limit destroyed shape of destroyed mode was analyzed. And the formula of limit carrying capacity of rectangle timber beam reinforced by GFRP was induced. The result of the formula was compared with the experiment result, and these two matched well.

关 键 词：木梁 玻璃纤维布 抗弯加固 

分 类 号：TU398.9[建筑科学—结构工程]