砌体填充钢筋混凝土框架抗震性能分析
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摘要
为揭示砌体填充墙-框架协同工作机理,考虑填充墙砌体材料、填充墙数量及填充墙布设形式,采用ABAQUS有限元分析软件建立了12个结构模型,进行了模态分析和动力时程分析。分析结果表明,填充框架结构在缺失填充墙楼层形成薄弱层,底层缺失填充墙对结构抗震最不利;框架结构填充墙布设数量越少、砌体弹性模量越小以及填充墙布设相对越接近结构顶层,填充墙框架结构的抗侧刚度越小;结构底层均匀、分散、对称布置填充墙,布设数量越多对结构抗震越有利;对于底层有较大空间使用需求的框架结构,建议布设一定数量强度和刚度均较大的填充墙,以保证底部楼层有足够的抗侧刚度。
In order to reveal the cooperative working mechanism between the masonry filler wall and the frame, considering the influence of the filled wall masonry material, the number of the filled wall and the layout of the infilled wall, 12 structural models are established by ABAQUS finite element analysis software, and modal analysis and dynamic time-history analysis are analyzed. The analysis results show that: the infilled wall frame structure forms a weak layer on the floor of the missing infilled wall, and the missing infilled wall on the ground floor is the most unfavorable to the seismic resistance of the structure; the smaller the number of filled walls is, the smaller the elastic modulus of the masonry is, and the closer the infilled wall layout is to the top of the structure, the smaller the lateral stiffness of the infilled wall frame structure is; the more the number of the infilled walls filled evenly, dispersively and symmetrically in the bottom layer of the structure is, the more favorable it will be to the seismic resistance of the structure; for the frame structures with large space requirements at the bottom, it is recommended to install a certain number of infilled wall with large strength and stiffness to ensure sufficient lateral stiffness at the bottom floor.
In order to reveal the cooperative working mechanism between the masonry filler wall and the frame, considering the influence of the filled wall masonry material, the number of the filled wall and the layout of the infilled wall, 12 structural models are established by ABAQUS finite element analysis software, and modal analysis and dynamic time-history analysis are analyzed. The analysis results show that: the infilled wall frame structure forms a weak layer on the floor of the missing infilled wall, and the missing infilled wall on the ground floor is the most unfavorable to the seismic resistance of the structure; the smaller the number of filled walls is, the smaller the elastic modulus of the masonry is, and the closer the infilled wall layout is to the top of the structure, the smaller the lateral stiffness of the infilled wall frame structure is; the more the number of the infilled walls filled evenly, dispersively and symmetrically in the bottom layer of the structure is, the more favorable it will be to the seismic resistance of the structure; for the frame structures with large space requirements at the bottom, it is recommended to install a certain number of infilled wall with large strength and stiffness to ensure sufficient lateral stiffness at the bottom floor.
引文
[1] 李碧雄,谢和平,邓建辉,等.汶川地震中房屋建筑震害特征及抗震设计思考[J].防灾减灾工程学报,2009,29(2):224-230
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[8] 罗瑞,唐曹明,罗开海,等.底层填充墙平面不均匀布置对框架结构抗震性能的影响研究[J].建筑结构,2017,47(5):64-71
[9] Milanesi R R,Morandi P,Magenes G.Local effects on RC frames induced by AAC masonry infills through FEM simulation of in-plane tests[J].Bulletin of Earthquake Engineering,2018,16(9):4053-4080
[10] 李碧雄.地震中砌体填充墙和RC框架梁柱协同作用机理[J].建筑结构,2015,45(4):97-101
[11] 廖桥,李碧雄,石宇翔,等.轻质墙板填充墙钢的混凝土框架抗震性能试验研究[J].建筑结构学报,2018,39(S1):148-155
[12] 熊峰,王盼,张维渤,等.纤维石膏填充墙-钢筋混凝土框架抗震性能试验研究[J].工程科学与技术,2017,49(4):1-9
[13] 陈道政,陆宝金.框架填充墙对结构抗震性能的影响[J].建筑结构,2017,47(24):49-54
[14] 刘资玉,肖亚明,门雨.填充墙竖向不规则布置对框架结构抗震性能的影响[J].结构工程师,2018,34(2):79-85
[15] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003
[16] 杨伟军,施楚贤.砌体受压本构关系研究成果的述评[J].四川建筑科学研究,1999,(3):52-55
[17] 黄榜彪,廖天权,朱基珍,等.砌体含参数本构关系统一模型研究[J].四川建筑科学研究,2016,42(5):10-13
[18] 朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991
[19] 郑妮娜.装配式构造柱约束砌体结构抗震性能研究[D].重庆:重庆大学,2010
[20] Mehrabi A B,Shing P B.Finite element modeling of masonry-infilled RC frames[J].Journal of structural engineering,1997,123(5):604-613
[21] 林超,郭子雄,黄群贤,等.不同新型墙材砌体的力学性能对比分析[J].华侨大学学报(自然科学版),2012,33(5):552-556
[22] 梁建国,黄靓.砌体结构设计禁忌手册[M].北京:中国建筑工业出版社,2008
[23] Polyakov S V.On the interactions between masonry filler walls and enclosing frame when loaded in the plane of the wall[J].Earthquake Engineering Research Institute,1960,25(2):36-42
[24] Wale W E,Mohamed E,Ahmad A H.Three-strut model for concrete masonry-infilled steel frames[J].Journal of Structural Engineering,2003,129(2):177-185
[25] 范萍萍,陆新征,叶列平.7度区RC框架抗地震倒塌能力与加强措施研究[J].建筑科学,2018,34(11):1-7
[26] 林超,郭子雄,黄群贤,等.足尺砌体填充墙RC框架抗震性能试验研究[J].建筑结构学报,2018,39(9):30-37
[27] 李建辉,薛彦涛,肖从真,等.足尺蒸压加气混凝土砌块填充墙RC框架抗震性能试验研究[J].土木工程学报,2015,48(8):12-18
[28] 赵群昌,史庆轩,王秋维,等.填充墙框架结构基于性能的抗震评估方法研究[J].建筑科学,2012,28(5):71-75
[29] 王树和,张举兵,汪金龙,等.框架填充墙结构基于性能的抗震评估[J].北京科技大学学报,2014,36(4):562-568
[2] 杨伟,侯爽,欧进萍.从汶川地震分析填充墙对结构整体抗震能力影响[J].大连理工大学学报,2009,49(5):770-775
[3] 吴阳,柳炳康.汶川地震中框架填充墙结构震害数值模拟分析[J].合肥工业大学学报(自然科学版),2010,33(9):1372-1377
[4] 贺莹,徐勤.皮山地震中框架结构填充墙的震害分析[J].建筑结构,2016,46(8):44-47
[5] 彭娟,李碧雄,邓建辉.芦山地震和汶川地震中空心砖填充墙震害反思[J].世界地震工程,2014,30(2):186-193
[6] Paolo Ricci,Maria Teresa De Risi,Gerardo Mario Verderame,et al.Influence of infill distribution and design typology on seismic performance of low-and mid-rise RC buildings[J].Bulletin of Earthquake Engineering,2013,11(5):1585-1616
[7] 魏勇,崔建文,王秋良,等.填充墙对于框架结构抗震性能影响分析[J].建筑结构,2017,47(S2):351-355
[8] 罗瑞,唐曹明,罗开海,等.底层填充墙平面不均匀布置对框架结构抗震性能的影响研究[J].建筑结构,2017,47(5):64-71
[9] Milanesi R R,Morandi P,Magenes G.Local effects on RC frames induced by AAC masonry infills through FEM simulation of in-plane tests[J].Bulletin of Earthquake Engineering,2018,16(9):4053-4080
[10] 李碧雄.地震中砌体填充墙和RC框架梁柱协同作用机理[J].建筑结构,2015,45(4):97-101
[11] 廖桥,李碧雄,石宇翔,等.轻质墙板填充墙钢的混凝土框架抗震性能试验研究[J].建筑结构学报,2018,39(S1):148-155
[12] 熊峰,王盼,张维渤,等.纤维石膏填充墙-钢筋混凝土框架抗震性能试验研究[J].工程科学与技术,2017,49(4):1-9
[13] 陈道政,陆宝金.框架填充墙对结构抗震性能的影响[J].建筑结构,2017,47(24):49-54
[14] 刘资玉,肖亚明,门雨.填充墙竖向不规则布置对框架结构抗震性能的影响[J].结构工程师,2018,34(2):79-85
[15] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003
[16] 杨伟军,施楚贤.砌体受压本构关系研究成果的述评[J].四川建筑科学研究,1999,(3):52-55
[17] 黄榜彪,廖天权,朱基珍,等.砌体含参数本构关系统一模型研究[J].四川建筑科学研究,2016,42(5):10-13
[18] 朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1991
[19] 郑妮娜.装配式构造柱约束砌体结构抗震性能研究[D].重庆:重庆大学,2010
[20] Mehrabi A B,Shing P B.Finite element modeling of masonry-infilled RC frames[J].Journal of structural engineering,1997,123(5):604-613
[21] 林超,郭子雄,黄群贤,等.不同新型墙材砌体的力学性能对比分析[J].华侨大学学报(自然科学版),2012,33(5):552-556
[22] 梁建国,黄靓.砌体结构设计禁忌手册[M].北京:中国建筑工业出版社,2008
[23] Polyakov S V.On the interactions between masonry filler walls and enclosing frame when loaded in the plane of the wall[J].Earthquake Engineering Research Institute,1960,25(2):36-42
[24] Wale W E,Mohamed E,Ahmad A H.Three-strut model for concrete masonry-infilled steel frames[J].Journal of Structural Engineering,2003,129(2):177-185
[25] 范萍萍,陆新征,叶列平.7度区RC框架抗地震倒塌能力与加强措施研究[J].建筑科学,2018,34(11):1-7
[26] 林超,郭子雄,黄群贤,等.足尺砌体填充墙RC框架抗震性能试验研究[J].建筑结构学报,2018,39(9):30-37
[27] 李建辉,薛彦涛,肖从真,等.足尺蒸压加气混凝土砌块填充墙RC框架抗震性能试验研究[J].土木工程学报,2015,48(8):12-18
[28] 赵群昌,史庆轩,王秋维,等.填充墙框架结构基于性能的抗震评估方法研究[J].建筑科学,2012,28(5):71-75
[29] 王树和,张举兵,汪金龙,等.框架填充墙结构基于性能的抗震评估[J].北京科技大学学报,2014,36(4):562-568
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