方钢管混凝土柱-钢桁架结构破坏模式分析
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摘要
基于叠加原理,假定钢桁架与钢管混凝土柱的变形互不耦合,提出针对这种框架的节点子结构受力机理简化分析模型并采用试验验证.其中,钢桁架的荷载-位移曲线由铰接机制、刚接机制叠加得到;钢管混凝土柱的荷载-位移曲线则基于弯矩-曲率方程与等效剪切刚度计算得到.通过对钢桁架、方钢管混凝土柱承载力的分析,可判断结构的破坏模式与承载力.简化模型预测的破坏模式、荷载-位移曲线均与试验结果吻合较好,承载力与试验值接近.针对方钢管混凝土柱-钢桁架结构的不同破坏模式,还对其与抗震性能的相关性做了进一步的探讨.
Assumed the deformation of steel truss and concrete filled tubular(CFT)column were independent,a simplified analytical model on the bearing mechanism of the joint sub-assembly was proposed based on the superposition principle.And the test verification with the results obtained by the model was conducted.In the model,the steel truss was considered as a combination of the hinge and rigid mechanism,and the load-displacement relationship of the CFT column was calculated according to the momentcurvature equation and the equivalent shearing stiffness.Failure modes and bearing capacity could be identified according to the analysis.The predicted load-displacement relationship and failure modes had good agreements with the test,and the predicted bearing capacity was also close to the test. From the view of seismic performance, some discussions on the different failure modes of the structure were made in the presented paper.
引文
[1]宗周红,林东欣,房贞政,等.两层钢管混凝土组合框架结构抗震性能试验研究[J].建筑结构学报,2002,23(2):27.ZONG zhouhong,LIN Dongxin,FANG Zhenzheng,et al.Experimental research on seismic behavior of a two-story concrete filled steel tubular composite frame[J].Journal of building structures,2002,23(2):27.
    [2]李斌,薛刚,张园.钢管混凝土框架结构抗震性能试验研究[J].地震工程与工程振动,2002,22(5):53.LI Bin,XUE Gang,ZHANG Yuan.Experimental study on behavior of concrete filled steel tubular frame[J].Earthquake Engineering and Engineering Vibration,2002,22(5):53.
    [3]王来,王铁成,齐建伟,等.方钢管混凝土框架滞回性能试验与理论研究[J].天津大学学报,2005,38(1):41.WANG Lai,WANG Tiecheng,QI Jianwei,et al.Experimental and theoretical study on hysteretic behavior of concrete-filled rectangular steel tubular frame[J].Journal of Tianjin University,2005,38(1):41.
    [4]周栋梁,钱稼茹,方小丹,等.环梁连接的RC梁-钢管混凝土柱框架试验研究[J].土木工程学报,2004,37(5):7.ZHOU Dongliang,QIAN Jiaru,FANG Xiaodan,et al.Experimental study on a RC beam-STCC column frame with RC ring beam connections[J].China Civil Engineering Journal,2004,37(5):7.
    [5]许成祥,徐礼华,杜国锋,等.钢管混凝土柱框架结构模型地震反应试验研究[J].武汉大学学报:工学版,2006,39(3):68.XU Chengxiang,XU Lihua,DU Guofeng,et al.Experimental study on earthquake response of a CFST column frame structure model[J].Engineering Journal of Wuhan University,2006,39(3):68.
    [6]王先铁,郝际平,周观根,等.方钢管混凝土柱-钢梁平面框架抗震性能试验研究[J].建筑结构学报,2010,31(8):8.WANG Xiantie,HAO Jiping,ZHOU Guangen,et al.Experimental research on seismic behavior of concrete filled square steel tube columns and steel beam planar frames[J].Journal of Building Structures,2010,31(8):8.
    [7]王文达,韩林海,陶忠.钢管混凝土柱-钢梁平面框架抗震性能的试验研究[J].建筑结构学报,2006,27(3):48.WANG Wenda,HAN Linhai,TAO Zhong.Experimental research on seismic behavior of concrete filled CHS and SHS columns and steel beam planar frames[J].Journal of Building Structures,2006,27(3):48.
    [8]HAN Linhai,WANG Wenda,TAO Zhong.Performance of circular CFST column to steel beam frames under lateral cyclic loading[J].Journal of Constructional Steel Research,2011,2011(67):876.
    [9]李志强,王伟,陈以一,等.铁路客站钢桁架-方钢管混凝土柱节点构造优化与试验研究[J].建筑结构,2013,43(13):63.LI Zhiqiang,WANG Wei,CHEN Yiyi,et al.Details improvement and experimental research on steel truss-square CFT column joints in railway station terminal[J].Building Structure,2013,43(13):63.
    [10]沈祖炎,陈扬骥,陈以一.钢结构基本原理[M].2版.北京:中国建筑工业出版社,2005.SHEN Zuyan,CHEN Yangji,CHEN Yiyi.The basic principle of steel structure[M].2nd.Beijing:China Architecture&Building Press,2005.
    [11]HAN Linhai,LU Hui,YAO Guohuang,et al.Further study on the flexural behaviour of concrete-filled steel tubes[J].Journal of Constructional Steel Research,2006,62(6):554.
    [12]DB29-57 2003天津市钢结构住宅设计规程[S].天津:天津市建设管理委员会,2003.DB29-57 2003 Technical specification for design of steel structure dwelling house in Tianjin[S].Tianjin:Constrction Management Committee of Tianjin,2003.
    [13]李忠献,许成祥,王冬,等.钢管混凝土框架结构抗震性能的试验研究[J].建筑结构,2004,34(1):3.LI Zhongxian,XU Chengxiang,WANG Dong,et al.Experimental research on the seismic performance of CFT frame structure[J].Building Structure,2004,34(1):3.
    [14]李志强,王伟,陈以一.钢桁架-圆钢管混凝土柱连接区段抗震性能试验研究与承载机理分析[J].建筑结构学报,2013,34(7):47.LI Zhiqiang,WANG Wei,CHEN Yiyi.Experimental research on seismic performance and analysis on load bearing mechanism of steel truss-to-circular CFT column subassemblage[J].Journal of Building Structures,2013,34(7):47.
    [15]舒蓉,徐培蓁.层间柱梁强度比对混合屈服机制钢管混凝土框架结构性能的影响[J].青岛理工大学学报,2010,31(1):21.SHU Rong,XU Peizhen.The effect of layer column-to-beam strength ratios on structural performance of hybrid yield mechanism concrete-filled steel tubular moment-resistant frames[J].Journal of Qingdao Technological University,2010,31(1):21.

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