方钢管混凝土柱-钢梁节点非线性有限元分析
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摘要
利用非线性有限元软件ANSYS,对钢材采用Von-Mises屈服条件和双线性随动强化本构关系,对混凝土采用前人总结的弹塑性本构关系,对混凝土裂缝和高强螺栓连接的面-面接触等问题采用ANSYS提供的判别准则,采用三维实体单元对带内隔板的方钢管混凝土柱-钢梁栓焊连接节点进行了三维建模,模拟分析了钢管混凝土柱中钢材、混凝土强度等级等因素在单调加载和低周反复加载下对节点受力性能的影响,并对节点抗震指标进行了分析比较,得到的有限元分析结果可供试验和设计参考。
The Von-Mises failure criterion and bilinear kinematical hardening stress-strain relationships have been used for steel and the elasticplastic stress-strain relationships used for concrete.The concrete cracking and contact-friction of bolts connections are used for the discriminating criteria in terms of ANSYS.The 3D models of bolt-weld joint with internal diaphragms by 3D solid elements are founded.And the effects of changes in steel and concrete strength on joint behaviors under the monotonic loading and cyclic loading are be analyzed.And then,seismic indicators are analyzed.The results of nonlinear FEM analyses can provide a reference for experiment and engineering design.
The Von-Mises failure criterion and bilinear kinematical hardening stress-strain relationships have been used for steel and the elasticplastic stress-strain relationships used for concrete.The concrete cracking and contact-friction of bolts connections are used for the discriminating criteria in terms of ANSYS.The 3D models of bolt-weld joint with internal diaphragms by 3D solid elements are founded.And the effects of changes in steel and concrete strength on joint behaviors under the monotonic loading and cyclic loading are be analyzed.And then,seismic indicators are analyzed.The results of nonlinear FEM analyses can provide a reference for experiment and engineering design.
引文
1钟善桐.钢管混凝土结构(第三版).北京:清华大学出版社,2003
2韩林海.钢管混凝土结构:理论与实践:北京:科学出版社,2004
3 Beutel J,Thambiratnam D,Perera N.Cyclic Behavior of ConcreteFilled Steel Tubular Column to Steel Beam Connec-tions.Engineering Structures,2002,24:29-38
4 Ricles J M,Peng S W,Lu L W.Seismic Behavior of CompositeConcrete Filled Steel Tube Column-Wide Flang Beam MomentConnections.Journal of Structural Engineering,ASCE,2004,130(2):223-232
5周天华,何保康,陈国津,等,方钢管混凝土柱与钢梁框架节点的抗震性能试验研究.建筑结构学报,2004,25(1):9-16
6聂建国,秦凯,肖岩.方钢管混凝土柱节点的试验研究及非线性有限元分析.工程力学,2006,23(11):99-115
7 Kang C H,Shin K J,Oh Y S,et al.Hysteresis Behavior of CFTColumn to H-Beam Connections with External T-Stiffeners andPenetrated Elements.Engineering Structures,2001,23:1 194-1 201
8宗周红,葛继平,杨强跃.反复荷载作用下方钢管混凝土柱与钢梁连接节点非线性有限元分析.建筑结构学报,2006,27(2):75-81
9腾智明,邹离湘.反复荷载下钢筋混凝土构件的非线性有限元分析.土木工程学报,1996(2):34-39
10朱伯龙,董振祥.钢筋混凝土非线性分析.上海:同济大学出版社,1995
11 Susantha K A S,Ge H B,Usami T.Uniaxial Stress Strain Rela-tionship of Concrete Confined by Various Shaped SteelTubes.Engineering Structures,2001,23:1 331-1 347
12程国亮,于德介,李向真,等.钢管混凝土单梁节点有限元研究.广州大学学报(自然科学版),2002(6):52-58
13唐九如.钢筋混凝土框架节点抗震.南京:东南大学出版社,1989
14 Zieger H A.Modification of Pranger's Hardening Rule.Quarterlyof Applied Mathematics,1959,17:55-65
15苏明周.箱形截面钢构件在地震作用下的相关屈曲破坏机理及抗震设计对策:[博士学位论文].西安:西安建筑科技大学,1999
2韩林海.钢管混凝土结构:理论与实践:北京:科学出版社,2004
3 Beutel J,Thambiratnam D,Perera N.Cyclic Behavior of ConcreteFilled Steel Tubular Column to Steel Beam Connec-tions.Engineering Structures,2002,24:29-38
4 Ricles J M,Peng S W,Lu L W.Seismic Behavior of CompositeConcrete Filled Steel Tube Column-Wide Flang Beam MomentConnections.Journal of Structural Engineering,ASCE,2004,130(2):223-232
5周天华,何保康,陈国津,等,方钢管混凝土柱与钢梁框架节点的抗震性能试验研究.建筑结构学报,2004,25(1):9-16
6聂建国,秦凯,肖岩.方钢管混凝土柱节点的试验研究及非线性有限元分析.工程力学,2006,23(11):99-115
7 Kang C H,Shin K J,Oh Y S,et al.Hysteresis Behavior of CFTColumn to H-Beam Connections with External T-Stiffeners andPenetrated Elements.Engineering Structures,2001,23:1 194-1 201
8宗周红,葛继平,杨强跃.反复荷载作用下方钢管混凝土柱与钢梁连接节点非线性有限元分析.建筑结构学报,2006,27(2):75-81
9腾智明,邹离湘.反复荷载下钢筋混凝土构件的非线性有限元分析.土木工程学报,1996(2):34-39
10朱伯龙,董振祥.钢筋混凝土非线性分析.上海:同济大学出版社,1995
11 Susantha K A S,Ge H B,Usami T.Uniaxial Stress Strain Rela-tionship of Concrete Confined by Various Shaped SteelTubes.Engineering Structures,2001,23:1 331-1 347
12程国亮,于德介,李向真,等.钢管混凝土单梁节点有限元研究.广州大学学报(自然科学版),2002(6):52-58
13唐九如.钢筋混凝土框架节点抗震.南京:东南大学出版社,1989
14 Zieger H A.Modification of Pranger's Hardening Rule.Quarterlyof Applied Mathematics,1959,17:55-65
15苏明周.箱形截面钢构件在地震作用下的相关屈曲破坏机理及抗震设计对策:[博士学位论文].西安:西安建筑科技大学,1999
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