新型钢板剪力墙组合结构抗震性能试验研究
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摘要
基于钢筋混凝土短肢剪力墙结构体系,提出了适用于小高层钢结构体系的新型钢板剪力墙组合结构形式。该结构体系包括三边固结约束、一边弹性约束的钢板-预制水泥基轻型混凝土板组合剪力墙,实腹式T形组合柱,不等翼缘钢连梁3个基本单元,其结构构成能够有效避免构件在房间内的凸角,便于门窗洞口的留设,并且能够提高结构的耐火极限。采用水平千斤顶施加往复荷载,对纯框架、新型钢板剪力墙组合结构试件进行了低周推覆试验研究。研究结果表明:钢板-预制水泥基轻型混凝土板组合剪力墙对纯框架结构的抗侧刚度有所提高,对结构体系的耗能能力提高较为明显;预制墙板能够提高钢板剪力墙的抗侧刚度及屈曲荷载;钢板的约束形式对结构耗能、钢板屈曲形式及墙板破坏形式有较大的影响。
Based on the formation of short-limb shear walls,a novel steel plate composite shear wall system used for high-rise buildings was presented in this paper.The novel system is composed of three parts: the composite(precast cement-based light concrete plate-steel plate) shear wall with trilateral constrained,the T-shaped solid-web composite columns and the imparity flanges coupling beams.Using this structural system,the room will have no salient of structural members,and the window and door openings will be easy to set.The precast concrete plate and the concrete protective cover would enhance the fire resistance of structural components.The moment resisting frame and the novel steel plate composite shear wall were tested by horizontal jack.Static cyclic load was applied in the experimental process.The result indicates that the composite shear wall helps to raise the lateral stiffness of the moment resisting frame and enhance its energy dissipation capacity;the lateral stiffness and buckling load of the steel plate shear wall are improved by precast cement-based light concrete plates connected to steel plates;the energy dissipation capacity of the structural system,the buckling mode of steel plates,and the failure mode of precast cement-based light concrete plates are related to the constraint condition of steel plates.
Based on the formation of short-limb shear walls,a novel steel plate composite shear wall system used for high-rise buildings was presented in this paper.The novel system is composed of three parts: the composite(precast cement-based light concrete plate-steel plate) shear wall with trilateral constrained,the T-shaped solid-web composite columns and the imparity flanges coupling beams.Using this structural system,the room will have no salient of structural members,and the window and door openings will be easy to set.The precast concrete plate and the concrete protective cover would enhance the fire resistance of structural components.The moment resisting frame and the novel steel plate composite shear wall were tested by horizontal jack.Static cyclic load was applied in the experimental process.The result indicates that the composite shear wall helps to raise the lateral stiffness of the moment resisting frame and enhance its energy dissipation capacity;the lateral stiffness and buckling load of the steel plate shear wall are improved by precast cement-based light concrete plates connected to steel plates;the energy dissipation capacity of the structural system,the buckling mode of steel plates,and the failure mode of precast cement-based light concrete plates are related to the constraint condition of steel plates.
引文
[1]邵建华,顾强,申永康.多层多跨钢板剪力墙水平极限承载力分析[J].重庆建筑大学学报,2008,30(2):71-74.
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[6]陈国栋,郭彦林.非加劲板抗剪极限承载力[J].工程力学,2003,20(2):49-54.
[7]郭彦林,董全利.钢板剪力墙的发展与研究现状[J].钢结构,2005,20(1):1-6.
[8]郭彦林,缪友武,董全利.全加劲两侧开缝钢板剪力墙弹性屈曲研究[J].建筑钢结构进展,2007,9(3):58-62.
[9]李国强,赵欣,孙飞飞,等.钢结构住宅体系墙板及墙板节点足尺模型振动台试验研究[J].地震工程与工程振动,2003,23(1):64-70.
[10]03G715—1蒸压轻质加气混凝土板(NALC)构造详图[S].中国:中国建筑标准设计研究所,2003.
[11]武敏刚,吕西林.钢骨联肢墙抗震性能试验研究[J].结构工程师,2004,20(5):52-56.
[2]王敏,曹万林,张建伟.组合剪力墙的抗震研究与发展[J].地震工程与工程振动,2007,27(5):80-87.
[3]Astaneh-asl A.Seismic behavior and design of steelshear walls[C]//Structural Engineers Assoc.ofNorthern California Seminar.San Francisco,2010.
[4]Zhao Qiuhong,Astaneh-asl Abolhassan.Experimentaland analytical studies of a steel plate shear wall system[C]//Vancouver,BC,Canada:ASCE,2008.
[5]Astaneh-asl A.Steel plate shear walls[C]//U.S.-Japan Workshop on Seismic Fracture Issues in SteelStructures,San Francisco,2000.
[6]陈国栋,郭彦林.非加劲板抗剪极限承载力[J].工程力学,2003,20(2):49-54.
[7]郭彦林,董全利.钢板剪力墙的发展与研究现状[J].钢结构,2005,20(1):1-6.
[8]郭彦林,缪友武,董全利.全加劲两侧开缝钢板剪力墙弹性屈曲研究[J].建筑钢结构进展,2007,9(3):58-62.
[9]李国强,赵欣,孙飞飞,等.钢结构住宅体系墙板及墙板节点足尺模型振动台试验研究[J].地震工程与工程振动,2003,23(1):64-70.
[10]03G715—1蒸压轻质加气混凝土板(NALC)构造详图[S].中国:中国建筑标准设计研究所,2003.
[11]武敏刚,吕西林.钢骨联肢墙抗震性能试验研究[J].结构工程师,2004,20(5):52-56.
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