砖填充墙加固前后钢筋混凝土框架的刚度与承载力

英文篇名：STIFFNESS AND LOAD CARRYING CAPACITY OF REINFORCED CONCRETE FRAMES WITH INFILLED WALL OR STRENGTHENED INFILLED WALL
中文刊名：工业建筑
英文刊名：Industrial Construction
作者：蒋利学
英文作者：Jiang Lixue~(1 ; 2)(1.Shanghai Research Institute of Building Sciences ; Shanghai 200032 ; China ; 2.Shanghai Key Laboratory of New Technology for Engineering Structures ; Shanghai 200032 ; China)
中文关键词：砖填充墙 ; 钢筋混凝土框架 ; 加固 ; 刚度 ; 承载力
英文关键词：infilled brick wall ; reinforced concrete frame ; strengthening ; stiffness ; load carrying capacity
出版日期：2009-06-20
机构：上海市建筑科学研究院;上海市工程结构新技术重点实验室;
年：2009
期：S1
出版单位：工业建筑

摘要

通过低周反复加载试验与分析,研究了填充墙框架与填充墙加固后框架的初始刚度、刚度衰减规律和承载力计算方法。试验与分析结果表明,填充墙能大幅度提高框架的初始刚度,双面和单面夹板墙加固填充墙能使填充墙框架的初始刚度分别约提高1倍和0.5倍,而碳纤维布加固填充墙基本上不能提高框架的初始刚度。填充墙加固后框架的填充墙刚度衰减速度比未加固的填充墙框架有所减小。建议的填充墙框架与填充墙加固后框架的承载力计算公式与试验结果吻合良好。
Through cyclic loading tests and analysis,the calculating methods of the initial stiffness,attenuation law of stiffness and load carrying capacity for infilled frames or strengthened infilled frames are researched.Tests and analysis show that,the initial stiffness of frames is distinctly increased by the infilled walls,and it will be increased by one times and a half times respectively if the infilled walls are strengthened by double-faced and single-faced steel-meshed cement mortar,but it will barely be increased if the infilled walls are strengthened by carbon fiber sheet.The attenuation speed of infilled wall stiffness of strengthened infilled frames is lower than the non-strengthened one.The suggested calculating formulas for load carrying capacity of infilled frames and strengthened infilled frames are in good agreement with the test results.

引文

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