型钢混凝土柱震后加固方法对比试验研究  

Comparative Experimental Investigation on Strengthening Approach of Seismic-damaged Steel Reinforced Concrete Frame Columns

作　　者：彭胜 许成祥[1] 万冲[2] 卢梦潇 PENG Sheng;XU Cheng-xiang;WAN Chong;LU Meng-xiao(School of Urban Construction,Wuhan University of Science and Technology,Wuhan 430065,China;School of Urban Construction,Yangtze University,Jingzhou 4344023,China)

机构地区：[1]武汉科技大学城市建设学院,武汉430065 [2]长江大学城市建设学院,荆州434023

出　　处：《科学技术与工程》2018年第30期206-211,共6页Science Technology and Engineering

基　　金：国家自然科学基金(51478048);湖北省自然科学基金(创新群体)(2015CFA029)资助

摘　　要：为了比较型钢混凝土柱震后加固的抗震效果,基于碳纤维布或外包钢套加固型钢混凝土柱试验研究,分析了地震损伤程度以及加固方法的差异;主要比较了不同加固方法对重度损伤柱抗震效果的差异。研究表明,外包钢套有利于抑制加固柱承载力与刚度退化;碳纤维布有利于提高加固柱延性性能。重度地震损伤加固柱抗震性能得到恢复且超过原型对比柱,具有再次抵抗地震的能力,表现出良好地工程实践价值。In order to compare the seismic effect of strengthening seismic-damaged steel reinforced concrete frame columns,based on the experimental research on steel reinforced concrete columns strengthened with carbon fiber reinforced polymer or enveloped steel jacket,the difference of seismic damage degree and reinforcement methods were analyzed.The difference of seismic effect between different reinforcement methods for severely damaged column was mainly compared.The results indicate that the enveloped steel jacket is beneficial to restrain the bearing capacity and stiffness degradation of the strengthened column,and the carbon fiber reinforced polymer is beneficial to improve the ductility of the strengthened column.The rehabilitated columns can reach or even exceed the level of their original seismic performance before seismic damage up to a certain extent of the damage level.Strengthened seismic-damaged columns have the ability to resist secondly earthquake damage,and have good practical engineering value.

关 键 词：型钢混凝土框架柱 外包钢套 碳纤维布 重度地震损伤 抗震性能 

分 类 号：TU375.3[建筑科学—结构工程]