纤维加固混凝土圆截面短柱抗震性能试验研究  

Experimental investigation on seismic performance of CFRP retrofited RC short columns with circular section

作　　者：王伟[1] 宋坤[2] 王大鹏[3] 

机构地区：[1]浙江建设职业技术学院建筑工程系,浙江杭州311231 [2]燕山大学建筑工程与力学学院,河北秦皇岛066004 [3]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《世界地震工程》2008年第4期96-100,共5页World Earthquake Engineering

基　　金：国家自然科学基金重点项目(50338020)

摘　　要：通过对3根抗剪不足的混凝土圆截面短柱的拟静力试验,不仅验证了横向包裹的碳纤维布能提高短柱的抗剪承载力,改善混凝土的变形性能,从而提高短柱的抗震性能,同时验证了具有一定破损的短柱经碳纤维布强约束加固后,同样具有良好的抗震性能。文章最后对碳纤维布加固短柱的延性提高机理进行了分析。Based on the quasi-static tests on three short columns with circular section,which is proved that seismic performance of the RC short columns reinforced by CFRP is improved for the increase of columns shear strength and the improvement of concrete deformation.In addition,the damaged short column reinforced by CFRP also has nice seismic performance.Finally,it is analyzed why the ductility of concrete columns reinforced using CFRP is improved.

关 键 词：圆截面短柱 破损短柱 碳纤维布 约束比 抗震性能 

分 类 号：TU375.3[建筑科学—结构工程]