不同轴压比下约束型双钢板混凝土组合剪力墙的滞回性能
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摘要
为改善高轴压比下组合剪力墙的延性,借鉴钢管约束型混凝土柱的概念,提出一种约束型双钢板混凝土组合剪力墙。通过有限元软件ABAQUS分别建立四片不同轴压比的约束型双钢板混凝土组合剪力墙和四片普通双钢板混凝土组合剪力墙,比较两种剪力墙的滞回性能,分析不同轴压比对约束型双钢板混凝土组合剪力墙滞回性能的影响。结果表明,相较于普通组合剪力墙,约束型剪力墙的承载力、延性、耗能能力得到大幅提高,同时,在很大程度上削弱了双钢板混凝土组合剪力墙的延性和耗能对于轴压比的敏感性。
This paper proposes a new type of anti-lateral force structure—constrained double-steelconcrete composite shear wall based on the concept of steel-concrete columns in order to improve the ductility of the double-steel concrete combined shear wall under high axial compression ratio. The new type of combined shear wall is formed by cutting the outer steel plate at the intersection of the top wall and the floor of the combined shear wall and leaving the gap of a certain width. The study involves establishing four kinds of constrained double-steel concrete composite shear wall and four ordinary double-steel concrete combined shear walls with different axial compression ratios by finite element software ABAQUS,and comparing the hysteretic behavior of the two shear walls,and thereby analyzing the influence of axial compression ratio on the hysteretic behavior of a constrained double-steel concrete combined shear wall. The results show that the constrained shear wall exhibits a significantly greater bearing capacity,ductility and energy dissipation capacity than the common combined shear wall,together with a greater reduction in the sensitivity to axial compression ratio of ductility and consumption of the double-steel concrete shear wall.
This paper proposes a new type of anti-lateral force structure—constrained double-steelconcrete composite shear wall based on the concept of steel-concrete columns in order to improve the ductility of the double-steel concrete combined shear wall under high axial compression ratio. The new type of combined shear wall is formed by cutting the outer steel plate at the intersection of the top wall and the floor of the combined shear wall and leaving the gap of a certain width. The study involves establishing four kinds of constrained double-steel concrete composite shear wall and four ordinary double-steel concrete combined shear walls with different axial compression ratios by finite element software ABAQUS,and comparing the hysteretic behavior of the two shear walls,and thereby analyzing the influence of axial compression ratio on the hysteretic behavior of a constrained double-steel concrete combined shear wall. The results show that the constrained shear wall exhibits a significantly greater bearing capacity,ductility and energy dissipation capacity than the common combined shear wall,together with a greater reduction in the sensitivity to axial compression ratio of ductility and consumption of the double-steel concrete shear wall.
引文
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[3]周绪红,闫标,刘界鹏,等.不同长径比圆钢管约束钢筋混凝土柱轴压承载力研究[J].建筑结构学报,2018,30(S):1-5.
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[9]马晓伟,聂建国,陶慕轩,等.双钢板-混凝土组合剪力墙压弯承载力数值模型及简化计算公式[J].建筑结构学报,2013,34(4):99-106.
[10]郭小农,邱丽秋,罗永峰,等.开洞双钢板组合剪力墙抗震性能试验[J].哈尔滨工业大学学报,2015,47(6):69-76.
[11]朱晓蓉,赵宝成,徐基磊.钢框架双钢板内填混凝土剪力墙有限元分析[J].四川建筑科学研究,2015,41(3):14-17,27.
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[14]龚永智,付磊,丁发兴,等.方钢管约束混凝土轴压短柱承载力研究[J].建筑结构学报,2016,37(S1):239-244.
[2]甘丹,周绪红,刘界鹏,等.圆钢管约束钢筋混凝土短柱往复荷载作用下的组合效应[J].建筑结构学报,2015,36(S1):222-229.
[3]周绪红,闫标,刘界鹏,等.不同长径比圆钢管约束钢筋混凝土柱轴压承载力研究[J].建筑结构学报,2018,30(S):1-5.
[4]甘丹,周绪红,刘界鹏,等.钢管约束钢筋混凝土柱受剪承载力计算[J].建筑结构学报,2018(1):73-78.
[5]张文元,王柯,王强,等.多腔钢板-混凝土组合剪力墙抗震性能研究[J].工程力学,2018(11):2629-2642.
[6]邱丽秋,郭小农,罗永峰,等.开洞双层钢板内填混凝土组合剪力墙抗震性能试验研究[J].工业建筑,2013(S):302-307.
[7]吴婧姝,张心斌,何觅.开洞对钢板混凝土剪力墙抗震性能的影响研究[J].工业建筑,2014,44(12):30-35.
[8]邱丽秋.开洞双层钢板内填混凝土剪力墙的抗震性能试验研究[D].上海:同济大学,2014.
[9]马晓伟,聂建国,陶慕轩,等.双钢板-混凝土组合剪力墙压弯承载力数值模型及简化计算公式[J].建筑结构学报,2013,34(4):99-106.
[10]郭小农,邱丽秋,罗永峰,等.开洞双钢板组合剪力墙抗震性能试验[J].哈尔滨工业大学学报,2015,47(6):69-76.
[11]朱晓蓉,赵宝成,徐基磊.钢框架双钢板内填混凝土剪力墙有限元分析[J].四川建筑科学研究,2015,41(3):14-17,27.
[12]中国建筑科学研究院.GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[13]中国建筑科学研究院.JGJ 101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[14]龚永智,付磊,丁发兴,等.方钢管约束混凝土轴压短柱承载力研究[J].建筑结构学报,2016,37(S1):239-244.