空心砌块墙体抗震性能试验及非线性有限元分析
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摘要
针对内置式空心砌块墙体的抗震性能,在低周往复水平荷载试验基础上,采用简化分离式建模方法建立了不同构造措施的空心砌块墙体非线性有限元模型,该模型能够精细模拟空心砌块墙体水平往复荷载下的破坏模式,真实反映墙体裂缝产生及发展全过程.根据抗震性能试验和有限元计算结果,对比分析了不同构造方案对墙体极限承载力、位移延性、压缩损伤及裂缝分布等的影响.经综合分析,建议最优构造方案为:在墙体两端集中布置构造暗柱和芯柱,同时根据需要于墙体中部适当增设芯柱,另外通过水平拉结筋网片保证构造暗柱和芯柱的有效拉结和共同工作.
To investigate the anti-seismic performance of hollow block masonry wall with built-in constructional details,based on low-cyclic horizontal loading tests,the nonlinear finite element analysis model was established for hollow block walls with different constructional measures by using simplified separate modeling method.This model can accurately simulate the failure mode of the hollow block walls under horizontal cyclic load and reflect the whole process of cracks occurrence and development of the wall.According to the results of experimental test and finite element analysis,the influence of different constructional measures on bearing capacity,ductility,compression damage and crack distribution was compared and discussed.Through comprehensive analysis,the optimal constructional details for wall were proposed,where the embedded structural columns and core columns should be built centralized at both ends of the wall,and core columns can be added in the centre of the walls according to the actual needs.Moreover,the horizontal steel tie mesh is used to ensure the effective bonding and cooperation work of embedded structural columns and core columns.
To investigate the anti-seismic performance of hollow block masonry wall with built-in constructional details,based on low-cyclic horizontal loading tests,the nonlinear finite element analysis model was established for hollow block walls with different constructional measures by using simplified separate modeling method.This model can accurately simulate the failure mode of the hollow block walls under horizontal cyclic load and reflect the whole process of cracks occurrence and development of the wall.According to the results of experimental test and finite element analysis,the influence of different constructional measures on bearing capacity,ductility,compression damage and crack distribution was compared and discussed.Through comprehensive analysis,the optimal constructional details for wall were proposed,where the embedded structural columns and core columns should be built centralized at both ends of the wall,and core columns can be added in the centre of the walls according to the actual needs.Moreover,the horizontal steel tie mesh is used to ensure the effective bonding and cooperation work of embedded structural columns and core columns.
引文
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[15] 孔璟常,翟长海,李爽,等.砌体填充墙RC框架结构平面内抗震性能有限元模拟[J].土木工程学报,2012,45(增2):137-141 Kong Jingchang,Zhai Changhai,Li Shuang,et al.Study on in-plane seismic performance of solid masonry-infilled RC frames [J].China Civil Engineering Journal,2012,45(S2):137-141
[16] Dolatshahi A J,Mohammad.A three-dimensional cyclic meso-scale numerical procedure for simulation of unreinforced masonry structures[J].Computers and Structures,2013,120:9-13
[17] Mohammad.Finite element analysis of unreinforced masonry walls [J].Al-Rafidain Engineering,2010,18(4):55-68
[18] ABAQUS.Analysis user's manual[Z].2010
[19] Lourenco P.Coputatioaal strategies for masonry structures[D].Netherands:Delt University,1996
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[21] 刘桂秋.砌体结构基本受力性能的研究[D].长沙:湖南大学,2005 Liu Guiqiu.The research on the basic mechanical behavior of masonry structure[D].Changsha:Hunan University,2005
[22] 刘桂秋,施楚贤.砌体及砌体材料弹性模量取值的研究[J].湖南大学学报,2008,35(4):29-32 Liu Guiqiu,Shi Chuxian.Analyses of the elastic modulus values of masonry[J].Journal of Hunan University 2008,35(4):29-32
[23] 施楚贤,谢小军.混凝土小型空心砌块砌体受力性能[J].建筑结构,1999,(3):10-12 Shi Chuxian,Xie Xiaojun.Mechanical behavior of small concrete hollow block masonry[J].Building Structure,1999,(3):10-12
[24] 施楚贤.砌体结构理论与设计[M].北京:中国建筑工业出版社,2011 Shi Chuxian.Theory and design of masonry structure[M].Beijing:China Architecture & Building Press,2011
[25] Aref M J,Dolatshahi K M.A three-dimensional cyclic meso-scale numerical procedure for simulation of unreinforced masonry structures[C].Tenth U S National Conference on Earthquake Engineering,2014
[26] 叶枝荣.用缓慢弯曲试验法研究水泥复合材料断裂能[J].混凝土,1983,(6):43-47 Ye Zhirong.Study on fracture energy of cement composite by slow bending test[J].Journal of Concrete,1983,(6):43-47
[27] 王广庆.砌体填充墙的精细化建模与等效斜撑建模[D].哈尔滨:哈尔滨工业大学,2016 Wang Guangqing.Refined simulation and improved structure models of masonry block infills[D].Harbin:Harbin Institute of Technology,2016
[28] 王春江,朱震宇.砌体墙侧向受力性能精细有限元模拟[J].浙江大学学报,2016,6(50):1024-1030 Wang Chunjiang,Zhu Zhenyu.High-precision finite element simulation on lateral mechanical behavior of masonry wall[J].Journal of Zhejiang University,2016,6(50):1024-1030
[2] 尹保江,罗开海,荣维生.玉树地震砌体结构震害调查与分析[C]//全国结构振动与动力学学术研讨会论文集.2011:265-272 Yi Baojiang,Luo Kaihai,Rong Weisheng.Investigation and analysis of seismic damage of masonry structure in Yushu Earthquake[C]//Proceedings of the Symposium on Structural Vibration and Dynamics in China.2011:265-272
[3] 蒋宁山,刘连新,张克雪.玉树村镇房屋震害调查与设计探讨[J].建筑技术,2011,42(7):638-641 Jiang Ningshan,Liu Lianxin,Zhang Kexue.Investigation and discussion of damaged housing at Yushu[J].Architecture Technology,2011,42(7):638-641
[4] 孙亚南.村镇住宅抗震性能调查与研究[D].郑州:郑州大学,2011 Sun Yanan.The survey and research of residential housings seismic performance[D].Zhengzhou:Zhengzhou University,2011
[5] 周锡元,李万举,闫维明,等.构造柱约束的混凝土小砌块墙体抗震性能的试验研究[J].土木工程学报,2006,39(8):45-50 Zhou Xiyuan,Li Wanju,Yan Weiming,et al.An experimental study on the seismic behavior of small concrete block walls confined by tie columns and beams[J].China Civil Engineering Journal,2006,39(8):45-50
[6] 肖建庄,黄江德,姚燕.再生混凝土砌块墙体抗震性能试验研究[J].建筑结构学报,2012,33(2):100-109 Xiao Jianzhuang,Huang Jiangde,Yao Yan.Test on seismic behavior of recycled concrete block walls[J].Journal of Building Structures,2012,33(2):100-109
[7] 闫维明,周宏宇,周锡元,等.带构造柱双排孔混凝土空心砌块墙抗震性能试验研究[J].建筑结构学报,2005,26(4):64-69 Yan Weiming,Zhou Hongyu,Zhou Xiyuan,et al.Experimental study on seismic behavior of small concrete hollow block walls restricted by constructional columns[J].Journal of Building Structures,2005,26(4):64-69
[8] 金伟良,徐铨彪,潘金龙,等.不同构造措施混凝土空心小型砌块墙体的抗侧力性能试验研究[J].建筑结构学报,2001,22(12):64-72 Jin Weiliang,Xu Shuanbiao,Pan Jinlong,et al.Experimental study on lateral resistance behavior of small concrete hollow block wall with different constructional measures[J].Journal of Building Structures,2001,22(12):64-72
[9] 金伟良,潘金龙,徐铨彪,等.不同构造措施的混凝土小型空心砌块单片墙的力学性能分析[J].建筑结构,2003,33(7):70-72 Jin Weiliang,Pan Jinlong,Xu Shuanbiao,et al.Mechanics analysis of concrete hollow small-sized brick wall with diverse constructional details[J].Building Structure,2003,33(7):70-72
[10] 周中一,曹万林,董宏英,等.一种带构造柱混凝土砌块墙体抗震性能试验研究[J].地震工程与工程振动,2012,32(3):86-91 Zhou Zhongyi,Cao Wanlin,Dong Hongying,et al.Experimental study on seismic performance of new concrete block masonry wall with constructional columns[J].Journal of Earthquake Engineering and Engineering Vibration,2012,32(3):86-91
[11] 曹万林,张勇波,董宏英,等.村镇建筑抗震节能结构体系研究与应用[J].工程力学,2015,32(12):1-12 Cao Wanlin,Zhang Yongbo,Dong Hongying,et al.Research and application on seismic energy-saving structural system for rural buildings[J].Engineering Mechanics,2015,32(12):1-12
[12] 王述红,唐春安,朱浮声,等.砌体结构开裂过程细观损伤数值模型及其分析方法[J].建筑结构学报,2003,24(2):64-69 Wang Shuhong,Tang Chun'an,Zhu Fusheng,et al.Constitutive damage model and its numerical method of cracking process of masonry structure[J].Journal of Building Structures,2003,24(2):64-69
[13] 王述红,唐春安,吴献.砌体开裂过程数值模型及其模拟分析[J].工程力学,2005,22(2):56-61 Wang Shuhong,Tang Chun'an,Wu Xian.Numerical model and simulation of masonry fracture process [J].Engineering Mechanics,2005,22(2):56-61
[14] 王述红,孙豁然,张娟霞,等.砌体受压开裂数值模拟及其力学特性研究[J].哈尔滨工业大学学报,2006,38(4):644-648 Wang Shuhong,Sun Huoran,Zhang Juanxia,et al.Numerical simulation of crack formation process and the mechanic characters of masonry structure[J].Journal of Harbin institute of technology,2006,38(4):644-648
[15] 孔璟常,翟长海,李爽,等.砌体填充墙RC框架结构平面内抗震性能有限元模拟[J].土木工程学报,2012,45(增2):137-141 Kong Jingchang,Zhai Changhai,Li Shuang,et al.Study on in-plane seismic performance of solid masonry-infilled RC frames [J].China Civil Engineering Journal,2012,45(S2):137-141
[16] Dolatshahi A J,Mohammad.A three-dimensional cyclic meso-scale numerical procedure for simulation of unreinforced masonry structures[J].Computers and Structures,2013,120:9-13
[17] Mohammad.Finite element analysis of unreinforced masonry walls [J].Al-Rafidain Engineering,2010,18(4):55-68
[18] ABAQUS.Analysis user's manual[Z].2010
[19] Lourenco P.Coputatioaal strategies for masonry structures[D].Netherands:Delt University,1996
[20] 砌体结构设计规范:GB 50003—2011[S].北京:中国建筑工业出版社,2011 Code for design of masonry structures:GB 50003—2011[S].Beijing:China Architecture & Building Press,2011
[21] 刘桂秋.砌体结构基本受力性能的研究[D].长沙:湖南大学,2005 Liu Guiqiu.The research on the basic mechanical behavior of masonry structure[D].Changsha:Hunan University,2005
[22] 刘桂秋,施楚贤.砌体及砌体材料弹性模量取值的研究[J].湖南大学学报,2008,35(4):29-32 Liu Guiqiu,Shi Chuxian.Analyses of the elastic modulus values of masonry[J].Journal of Hunan University 2008,35(4):29-32
[23] 施楚贤,谢小军.混凝土小型空心砌块砌体受力性能[J].建筑结构,1999,(3):10-12 Shi Chuxian,Xie Xiaojun.Mechanical behavior of small concrete hollow block masonry[J].Building Structure,1999,(3):10-12
[24] 施楚贤.砌体结构理论与设计[M].北京:中国建筑工业出版社,2011 Shi Chuxian.Theory and design of masonry structure[M].Beijing:China Architecture & Building Press,2011
[25] Aref M J,Dolatshahi K M.A three-dimensional cyclic meso-scale numerical procedure for simulation of unreinforced masonry structures[C].Tenth U S National Conference on Earthquake Engineering,2014
[26] 叶枝荣.用缓慢弯曲试验法研究水泥复合材料断裂能[J].混凝土,1983,(6):43-47 Ye Zhirong.Study on fracture energy of cement composite by slow bending test[J].Journal of Concrete,1983,(6):43-47
[27] 王广庆.砌体填充墙的精细化建模与等效斜撑建模[D].哈尔滨:哈尔滨工业大学,2016 Wang Guangqing.Refined simulation and improved structure models of masonry block infills[D].Harbin:Harbin Institute of Technology,2016
[28] 王春江,朱震宇.砌体墙侧向受力性能精细有限元模拟[J].浙江大学学报,2016,6(50):1024-1030 Wang Chunjiang,Zhu Zhenyu.High-precision finite element simulation on lateral mechanical behavior of masonry wall[J].Journal of Zhejiang University,2016,6(50):1024-1030