填充墙框架结构基于性能的抗震评估方法研究
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摘要
结合国内外对框架结构性能水平的划分标准,将填充墙框架结构的性能水平划分为基本完好、轻微破坏、中等破坏、严重破坏和接近倒塌五个阶段;提出填充墙框架结构各性能水平的失效判别参数和标准,在统计国内外大量试验数据的基础上,提出其不同性能水平对应的层间位移角限值。以等效压杆模型模拟填充墙,采用能力谱方法比较无墙和含墙型框架在地震作用下的响应,并将填充墙框架的实际层间位移与所提性能指标进行比较,结果表明结构在多遇及罕遇地震作用下均满足预定的性能目标。
Combined with performance grades of reinforced concrete structures at home and abroad,the seismic performance of masonry-infilled frame structures can be divided into five levels: basically normal,slight damage,medium damage,severe damage and collapse prevention.The limit states of all seismic performance levels and their dominating parameters of masonry-infilled frame structures are put forward,and quantified performance index of this structure are obtained on the basis of statistical test data.The seismic responses of pure and masonry-infilled frame structures are compared by using capacity spectrum method and equivalent strut model,and the result indicates that the structure could meet predetermined performance objective under the minor and major earthquake levels by comparing the practical story drift and proposed performance index.
Combined with performance grades of reinforced concrete structures at home and abroad,the seismic performance of masonry-infilled frame structures can be divided into five levels: basically normal,slight damage,medium damage,severe damage and collapse prevention.The limit states of all seismic performance levels and their dominating parameters of masonry-infilled frame structures are put forward,and quantified performance index of this structure are obtained on the basis of statistical test data.The seismic responses of pure and masonry-infilled frame structures are compared by using capacity spectrum method and equivalent strut model,and the result indicates that the structure could meet predetermined performance objective under the minor and major earthquake levels by comparing the practical story drift and proposed performance index.
引文
[1]史庆轩,门进杰,杨坤.钢筋混凝土框架结构基于性能的抗震设计指标[J].四川建筑科学研究,2007,33(Sup):78～81.
[2]叶献国.在低周反复荷载作用下灰砂砖墙体的抗震性能[J].多层建筑结构的抗震性能的近似评估—改进的能力谱方法[J].工程抗震,1998,(4):10～14.
[3]GB50011-2010.建筑抗震设计规范[S].
[4]FEMA273.NEHRP Commentary on the Guidelines for theRehabilitation of Buildings[S].Federal Emergency ManagementAgency,Washington,D.C.September,1996.
[5]ATC-40.Seismic Evaluation and Retrofit of Concrete Buildings[S].Applied Technology Council.Red Wood City,California,1996.
[6]童岳生,钱国芳.砖填充墙钢筋混凝土框架的变形性能及承载能力[J].西安建筑科技大学学报(自然科学版),1985(2):1～21.
[7]王春武.钢筋混凝土框架—砌体墙结构性能的试验研究[J].工业建筑,2002(32):71～73.
[8]Augustin Dukuze.Behavior of reinforced concrete frames infilledwith brick masonry panels[D].The University of NewBrunswick,2000.06.
[9]孙跃东,肖建庄,等.再生轻质砌块填充墙再生混凝土框架抗震性能的试验研究[J].地震工程与工程振动,2005(5):124～131.
[10]刘建毅.填充墙框架结构基于性能的抗震评估研究[D].西安:西安建筑科技大学,2008.
[2]叶献国.在低周反复荷载作用下灰砂砖墙体的抗震性能[J].多层建筑结构的抗震性能的近似评估—改进的能力谱方法[J].工程抗震,1998,(4):10～14.
[3]GB50011-2010.建筑抗震设计规范[S].
[4]FEMA273.NEHRP Commentary on the Guidelines for theRehabilitation of Buildings[S].Federal Emergency ManagementAgency,Washington,D.C.September,1996.
[5]ATC-40.Seismic Evaluation and Retrofit of Concrete Buildings[S].Applied Technology Council.Red Wood City,California,1996.
[6]童岳生,钱国芳.砖填充墙钢筋混凝土框架的变形性能及承载能力[J].西安建筑科技大学学报(自然科学版),1985(2):1～21.
[7]王春武.钢筋混凝土框架—砌体墙结构性能的试验研究[J].工业建筑,2002(32):71～73.
[8]Augustin Dukuze.Behavior of reinforced concrete frames infilledwith brick masonry panels[D].The University of NewBrunswick,2000.06.
[9]孙跃东,肖建庄,等.再生轻质砌块填充墙再生混凝土框架抗震性能的试验研究[J].地震工程与工程振动,2005(5):124～131.
[10]刘建毅.填充墙框架结构基于性能的抗震评估研究[D].西安:西安建筑科技大学,2008.
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