摘要
在爆炸荷载作用下,建筑结构会产生不同程度的损伤,甚至可能发生连续性倒塌。建筑结构性能评价是爆炸灾后重建阶段结构处置与修复加固方式选择的重要依据,是指在爆炸发生之后,考虑建筑爆炸损伤,对建筑结构的残余性能进行分析和评定。经过几十年的发展,建筑结构抗爆研究已经成为一个热门研究方向,许多学者开展了诸多相关研究,但现有研究成果大多为爆炸发生前的防护设计与分析。为了促进该领域更加全面深入的研究,为灾后重建工作提供技术支持,对爆炸灾后建筑结构性能评价涉及的一些关键问题进行详细的介绍与总结,并对可行修复加固技术的相关研究及应用进行总结与评述。经过多年发展,学者们建立了用于结构构件爆炸损伤评估的超压—冲量曲线和残余承载力评估公式,提出了建筑爆炸损伤等级及受灾区域划分方法,并在碳纤维布加固修复钢筋混凝土结构方面积累了丰富经验,但目前关于灾后建筑结构性能评定及修复的研究仍处于起步阶段,距离实际工程应用还有较大差距。
Building structures will suffer different degrees of damage,or even progressive collapse when subjected to blast loading.The performance evaluation of building structures after the explosion is to analyze the residual resistance of the building structures considering the effects of blast damage,which is essential for selection of structural disposal and retrofitting techniques in the reconstruction stage.Explosion-proof research of building structures has become a popular research field during the past decades.Extensive studies have been conducted by numerous scholars,but most studies have focused on protective design and analysis before explosions.In order to promote in-depth investigation in this field and provide technical support for post-blast reconstruction,several key issues related with structural performance evaluation of buildings after explosion event were introduced and summarized in detail,and feasible repair and reinforcement techniques were also summarized and commented.After years of development,pressure-impulse curves and correlations for evaluating residual bearing capacity of blast-damaged structural components have been established.Methods for blast damage grading of buildings and affected areas division have been proposed.Besides,experience in reinforcement and repair of reinforced concrete structures using carbon fibre reinforced polymer has been continuously accumulated.However,current study on performance evaluation and post-blast repair of building structures is still in its infancy,and there is still a huge gap from perspective of engineering practice and application.
作者
师燕超
刘少增
崔健
郭宗明
SHI Yanchao;LIU Shaozeng;CUI Jian;GUO Zongming(School of Civil Engineering,Tianjin University,Tianjin 300350,P.R.China;Key Laboratory of Coast Civil Structural Safety of the Ministry of Education,Tianjin University,Tianjin 300350,P.R.China;Shenzhen Municipal Design&Research Institute Co.,Ltd.,Shenzhen 518029,Guangdong,P.R.China)
出处
《土木与环境工程学报（中英文）》
CSCD
北大核心
2023年第1期1-13,共13页
Journal of Civil and Environmental Engineering
基金
国家自然科学基金(51878445、51938011、52178498)。
关键词
爆炸
建筑结构
结构抗爆
性能评价
修复加固
explosion
building structures
explosion-resistance of structures
performance evaluation
repair and reinforcement
作者简介
师燕超(1982-),男,博士,教授,博士生导师,主要从事工程结构抗爆与防护研究,E-mail:yanchaoshi@tju.edu.cn;通信作者:崔健,男,博士,副研究员,E-mail:jian.cui@tju.edu.cn。
