开洞加劲钢板剪力墙的力学性能研究
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摘要
针对深圳梅山苑7号楼钢板剪力墙上开洞问题,对开洞闭口加劲钢板剪力墙进行了有限元研究,给出了不同开洞位置和不同开洞率钢板剪力墙荷载-侧移曲线,分析了开洞位置和开洞率对初始刚度、屈曲荷载和极限荷载的影响。研究表明,中间开洞对钢板剪力墙刚度和极限承载力影响较大,可以采用线性公式计算开洞对钢板剪力墙初始刚度、屈曲荷载和极限荷载的折减。
With respect to the openings in the steel plate shear walls(SPSWS) of No.7 building of Meishanyuan in Shenzhen,the behaviour of closed stiffened steel plate shear wall with opening was studied with finite element method.The load-displacement relationships of the shear walls were obtained for different opening positions and opening ratios.The effect of opening positions and opening ratios on the initial stiffness,buckling resistance and ultimate resistance of the steel plate shear walls was analyzed.The result shows that steel plate shear walls experience a progressive reduction in stiffness and strength with an increase of the opening size.The reduction factors for initial stiffness,elastic buckling load and ultimate bearing capacity of steel plate shear walls can be calculated by linear formulas.
With respect to the openings in the steel plate shear walls(SPSWS) of No.7 building of Meishanyuan in Shenzhen,the behaviour of closed stiffened steel plate shear wall with opening was studied with finite element method.The load-displacement relationships of the shear walls were obtained for different opening positions and opening ratios.The effect of opening positions and opening ratios on the initial stiffness,buckling resistance and ultimate resistance of the steel plate shear walls was analyzed.The result shows that steel plate shear walls experience a progressive reduction in stiffness and strength with an increase of the opening size.The reduction factors for initial stiffness,elastic buckling load and ultimate bearing capacity of steel plate shear walls can be calculated by linear formulas.
引文
[1]关海涛.大开洞加劲钢板剪力墙力学性能分析与工程应用[C]//第十届全国现代结构工程学术研讨会论文集.上海,2010.
[2]郝际平,曹春华,王迎春,等.开洞薄钢板剪力墙低周反复荷载试验研究[J].地震工程与工程振动,2009,29(2):79-85.
[3]兰涛,郭彦林,郝际平.单片开洞薄板墙边缘构件的受力分析[J].工业建筑,2011,41(12):116-120.
[4]兰涛,郭彦林,郝际平.施工过程中柱轴压作用对开洞薄板墙的受力影响分析[J].施工技术,2011,40(11):66-70.
[5]郭彦林,陈国栋,缪友武.加劲钢板剪力墙弹性抗剪屈曲性能研究[J].工程力学,2006,23(2):84-91,59.
[6]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26,38.
[7]侯蕾,孙彤,郝际平,等.十字加劲肋钢板剪力墙低周反复荷载的试验[J].钢结构,2006,21(2):12-16.
[8]何欢欢.考虑竖向荷载竖向加劲钢板剪力墙设计技术研究[D].镇江:江苏科技大学,2013.
[9]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004.
[2]郝际平,曹春华,王迎春,等.开洞薄钢板剪力墙低周反复荷载试验研究[J].地震工程与工程振动,2009,29(2):79-85.
[3]兰涛,郭彦林,郝际平.单片开洞薄板墙边缘构件的受力分析[J].工业建筑,2011,41(12):116-120.
[4]兰涛,郭彦林,郝际平.施工过程中柱轴压作用对开洞薄板墙的受力影响分析[J].施工技术,2011,40(11):66-70.
[5]郭彦林,陈国栋,缪友武.加劲钢板剪力墙弹性抗剪屈曲性能研究[J].工程力学,2006,23(2):84-91,59.
[6]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26,38.
[7]侯蕾,孙彤,郝际平,等.十字加劲肋钢板剪力墙低周反复荷载的试验[J].钢结构,2006,21(2):12-16.
[8]何欢欢.考虑竖向荷载竖向加劲钢板剪力墙设计技术研究[D].镇江:江苏科技大学,2013.
[9]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004.
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