无粘结十字加劲钢板剪力墙结构抗剪性能分析
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摘要
十字加劲钢板剪力墙已被试验证明是优秀的抗侧力耗能构件,但加劲构件与内嵌钢板无粘结时,其对内嵌钢板的作用尚需进一步研究。利用有限元分析软件ABAQUS,对单层单跨无粘结十字加劲钢板剪力墙结构的抗剪性能进行数值模拟,分析在水平荷载作用下,构件的受力破坏特征及抗剪性能。研究表明,无粘结十字加劲钢板剪力墙结构具有良好的延性及抗剪性能,内嵌钢板能承担更多的剪力,对周边框架不利作用的降低幅度与传统十字加劲钢板剪力墙基本相同。参数分析结果表明:框架柱轴压比、墙体高厚比和肋板刚度比是影响钢板剪力墙抗剪性能的主要因素。
The cross-stiffened steel plate shear wall (CS-SPSW) has been proven to be an effective component for resisting lateral force and dissipating seismic energy. However, performances of unbonded cross-stiffened steel plate shear wall remain to be investigated. In order to study the shear performance of unbonded cross-stiffened steel plate shear wall (UCS-SPSW), an ABAQUS finite element model of one-story one-span UCS-SPSW was established in this paper.The damage state and shear performance under horizontal load were analyzed. The results show that, the UCS-SPSW has good ductility and shear behavior. Embedded steel plate can take on more shear, the decrement of the adverse effects on the frame are basically same with the traditional cross-stiffening steel plate shear wall. The axial compression ratio of column, depth-thickness ratio of steel plate and stiffness ratio of ribbed plate are main factors which influenced on shear performance of the UCS-SPSW.
The cross-stiffened steel plate shear wall (CS-SPSW) has been proven to be an effective component for resisting lateral force and dissipating seismic energy. However, performances of unbonded cross-stiffened steel plate shear wall remain to be investigated. In order to study the shear performance of unbonded cross-stiffened steel plate shear wall (UCS-SPSW), an ABAQUS finite element model of one-story one-span UCS-SPSW was established in this paper.The damage state and shear performance under horizontal load were analyzed. The results show that, the UCS-SPSW has good ductility and shear behavior. Embedded steel plate can take on more shear, the decrement of the adverse effects on the frame are basically same with the traditional cross-stiffening steel plate shear wall. The axial compression ratio of column, depth-thickness ratio of steel plate and stiffness ratio of ribbed plate are main factors which influenced on shear performance of the UCS-SPSW.
引文
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[7]李晓文,孙晓岭,薛强.点接触式防屈曲支撑稳定及延性性能研究[J].世界地震工程,2011,27(4):20-26.
[2]虎奇,郝际平,郭宏超,等.四角钢连接框架-十字加劲钢板剪力墙结构抗震性能试验研究[J].工业建筑,2011,41(5):112-115.
[3]郭宏超,郝际平,虎奇,等.半刚接钢框架-十字加劲钢板剪力墙结构滞回性能研究[J].土木工程学报,2011,44(10):35-44.
[4]李峰,吴冠男,郭宏超,等.十字加劲钢板剪力墙的变参分析[J].钢结构,2012,27(9):6-10.
[5]郝际平,于金光,王先铁,等.半刚性节点钢框架-十字加劲钢板剪力墙结构的数值分析[J].西安建筑科技大学学报,2012,44(2):153-158.
[6]陈国栋,郭彦林.十字加劲钢板剪力墙的抗剪极限承载力[J].建筑结构学报,2004,25(1):71-78.
[7]李晓文,孙晓岭,薛强.点接触式防屈曲支撑稳定及延性性能研究[J].世界地震工程,2011,27(4):20-26.
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