受腐蚀钢筋混凝土构件抗震加固性能研究  

Research on Seismic Behavior of Corroded and Strengthened Reinforced Concrete Specimens

作　　者：贡金鑫[1] 张艳青[1] 李金波[1] 

机构地区：[1]大连理工大学土木工程学院,辽宁大连116024

出　　处：《施工技术（下半月）》2011年第3期74-80,共7页Construction Technology

基　　金：国家自然科学基金项目(50078009);海岸和近海工程国家重点实验室自主研究项目(SL2009.5)

摘　　要：受腐蚀及加固后钢筋混凝土结构的抗震性能是工程中非常关心的问题。本文介绍了课题组在这方面的研究成果。研究表明,受腐蚀钢筋混凝土构件的承载力、延性和耗能能力均有降低,降低程度与钢筋的锈蚀量有关。对于只用碳纤维布包裹的腐蚀构件,承载力提高不多,但延性和耗能能力有较大提高。对于用碳纤维布和角钢复合加固及碳纤维布和加大截面复合加固的腐蚀构件,承载力、延性和耗能能力均有所提高。It is important to understanding the seismic behavior of corroded and strengthened reinforced concrete specimens.The experimental results indicate that the bearing capacity,ductility and energy consumption of the corroded reinforced concrete specimens decreased to some content depending on percentage of reinforcement corrosion.There is no essential increase for bearing capacity of the corroded specimen wrap with CFRP except for ductility and energy consumption.However for corroded reinforced concrete strengthened with steel jacket and wrap with CFRP or section enlargement and wrap with CFRP,the bearing capacity,ductility and energy consumption enhance considerably.

关 键 词：钢筋混凝土 腐蚀 抗震设计 加固 

分 类 号：TU317.1[建筑科学—结构工程] TU746.3