CFRP加固高强混凝土柱改善延性的试验研究  

Experimental research on ductility behavior of high-strength reinforced concrete columus strengthened with carbon fiber sheets

作　　者：王苏岩[1] 韩克双[2] 曲秀华[1] 

机构地区：[1]大连理工大学土木水利学院海岸和近海工程国家重点实验室,辽宁大连116024 [2]天津海王星海上工程技术有限公司,天津300384

出　　处：《世界地震工程》2005年第3期7-10,共4页World Earthquake Engineering

基　　金：国家自然科学基金项目(50378711)辽宁省教育厅科技项目(2002003)

摘　　要：通过对九根高强混凝土柱在低周反复荷载作用下受力性能的试验研究,探讨了碳纤维布对高强混凝土柱延性的改善作用,包括加固后柱的破坏形态、滞回曲线、骨架曲线、延性系数等性能特点。试验结果表明,采用碳纤维布横向缠绕高强混凝土柱可显著提高柱的延性,改善柱的抗震性能。Nine high-strength reinforced concrete columns were tested under cyclic lateral load and constant axial load. The effectiveness of the high-strength reinforced concrete columns strengthened by the CFRP for enhancing its ductility and earthquake-resistance is described. Failure pattern, hysteresis curves, skeleton curves and displacement ductility of the columns are studied systematically in tests. The experiment results show that the ductility of the columns is obviously increased, and seismic behavior is improved.

关 键 词：碳纤维布(CFRP) 高强混凝土 抗震加固 约束混凝土 

分 类 号：P315[天文地球—地震学]