水平地震作用考虑土-结构共同作用的高层钢结构交错桁架内力分析
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摘要
研究了三维高层钢结构交错桁架的动力内力反应,在计算水平地震作用下交错桁架的动力反应时考虑土-结构共同作用。在进行内力计算与分析时,同时研究交错桁架结构底柱固定与考虑共同作用两种情况,对水平地震作用下的最大动力反应进行了研究。计算结果表明:考虑土-结构共同作用时,水平地震作用下交错桁架柱子的最大内力将减少,并且其内力变化也更加缓和。
The dynamic internal forces of the three dimensions high-rise steel staggered truss were studied,and the influence of soil-structure interaction(SSI) were considered when the responses of this system under horizontal seismic was calculated.The internal forces of staggered truss system with column foot fixed and with pile group's foundation considering SSI were calculated and investigated.The maximum dynamic response of that under horizontal seismic was also investigated.The result shows that the maximum responses decreases with considering the SSI,and the variations of them decreases dramatically.
The dynamic internal forces of the three dimensions high-rise steel staggered truss were studied,and the influence of soil-structure interaction(SSI) were considered when the responses of this system under horizontal seismic was calculated.The internal forces of staggered truss system with column foot fixed and with pile group's foundation considering SSI were calculated and investigated.The maximum dynamic response of that under horizontal seismic was also investigated.The result shows that the maximum responses decreases with considering the SSI,and the variations of them decreases dramatically.
引文
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[6]周绪红,周期石,黄香香.竖向荷载作用下交错桁架的内力计算[J].工程力学,2004,21(3):25-30.ZHOU Xu-hong,ZHOU Qi-shi,HUANG Xiang-xiang.Calculation of intenal forces of staggered truss structuresubjected to vertical loads[J].Engineering Mechnics,2004,21(3):25-30.
[7]ZHOU Xu-hong,ZHOU Qi-shi.Calculation of internalforces and drift of staggered truss structures under lateralloads[J].Journal of Building Structures,2004,25(4):66-71.
[8]PAN Ying,ZHOU Xu-hong.A seismic behavior of thestaggered truss system[J].China Civil Engineering Jour-nal,2002,35(4):12-16.
[9]蒋建国,邹银生,周绪红,等.水平地震作用下考虑轴向力作用的桩间动力相互作用因子计算[J].岩土工程学报,2002,24(6):764-768.JIANG Jian-guo,ZOU Yin-sheng,ZHOU Xu-hong,et al.Dynamic interaction factor under excitation of lateral seis-mic considering the effect of axial load[J].Chinese Jour-nal of Geotehnical Engineering,2002,24(6):764-768.
[10]JIANG Jian-guo,ZHOU Xu-hong,ZHANG Jia-sheng.Dynamic interaction factor considering axial load[J].Geotechnique and Geoscience,2007(25):423-429.
[2]Hanson R D,Berg G V.Seismic design of staggered trussBuildings[J].Journal of Structural Division,ASCE,1974,100(ST1):175-193.
[3]Leffler R E.Calculation of wind drift in staggered-trussbuildings[J].Engineering Journal,AISC,1983,20(1):1-28.
[4]Socrates A I,Stanley D L.Staggered truss adapted to highrise[J].Civil Engineering,ASCE,1985,6:44-47.
[5]莫涛,周绪红,刘永健,等.交错桁架结构体系的受力性能分析[J].建筑结构学报,2000,21(2):49-54.MO Tao,ZHOUXu-hong,LIUYong-jian,et al.Analysisof the load bearing behavior of staggered truss structure[J].Journal of Building Structures,2000,21(2):49-54.
[6]周绪红,周期石,黄香香.竖向荷载作用下交错桁架的内力计算[J].工程力学,2004,21(3):25-30.ZHOU Xu-hong,ZHOU Qi-shi,HUANG Xiang-xiang.Calculation of intenal forces of staggered truss structuresubjected to vertical loads[J].Engineering Mechnics,2004,21(3):25-30.
[7]ZHOU Xu-hong,ZHOU Qi-shi.Calculation of internalforces and drift of staggered truss structures under lateralloads[J].Journal of Building Structures,2004,25(4):66-71.
[8]PAN Ying,ZHOU Xu-hong.A seismic behavior of thestaggered truss system[J].China Civil Engineering Jour-nal,2002,35(4):12-16.
[9]蒋建国,邹银生,周绪红,等.水平地震作用下考虑轴向力作用的桩间动力相互作用因子计算[J].岩土工程学报,2002,24(6):764-768.JIANG Jian-guo,ZOU Yin-sheng,ZHOU Xu-hong,et al.Dynamic interaction factor under excitation of lateral seis-mic considering the effect of axial load[J].Chinese Jour-nal of Geotehnical Engineering,2002,24(6):764-768.
[10]JIANG Jian-guo,ZHOU Xu-hong,ZHANG Jia-sheng.Dynamic interaction factor considering axial load[J].Geotechnique and Geoscience,2007(25):423-429.
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