碳纤维布约束混凝土长方柱轴心受压的试验研究  

Experimental Research on Rectangular Columns Confined by CFS under Axial Compression Load

作　　者：徐福泉[1] 刘明学[2] 关建光[1] 

机构地区：[1]中国建筑科学研究院建筑结构研究所,北京100013 [2]清华大学土木工程系,北京100084

出　　处：《工程抗震与加固改造》2007年第4期73-78,共6页Earthquake Resistant Engineering and Retrofitting

摘　　要：本文介绍碳纤维布加固混凝土长方柱的试验研究,共有15个长方形柱试件,其中,3个为素混凝土长方形柱,3个为碳纤维布分段约束的长方形柱,9个为采用碳纤维布和高强螺栓分段约束的长方形柱。分别研究了两种分段约束方法提高长方形柱抗压强度和延性的效果。试验研究表明,两种分段约束方法均能有效提高混凝土的强度和延性。并根据试验数据提出碳纤维布约束长方形柱的应力-应变关系曲线。In this paper, the behavior of rectangular columns confined by CFS are studied. The 15 rectangular columns are tested, which include 3 unreinforced concrete rectangular columns with the dimensions of 300m ×100mm × 400mm,3 concrete rectangular columns confined in segments by CFS and 9 concrete rectangular columns confined in segments by CFS and high-strength bolts. The effects of two methods on the behavior of CFS confined concrete are investigated differently. Experimental results indicate that the two methods can improve strength and ductility of columns effectively. Based on the experiment, an stress-strain curve of rectangular columns confined in segments by CFS are proposed.

关 键 词：碳纤维布 长方柱 应力-应变关系曲线 

分 类 号：TU377.9[建筑科学—结构工程]