期刊文献+

基于纤维模型有限元柔度法的L形钢管混凝土构件非线性仿真分析

Nonlinear Behavior Simulation of the L-shaped Concrete-Filled Steel Tube Stubs Based on the Fiber Model Flexibility Finite Element
下载PDF
导出
摘要 本文基于纤维模型有限元的基本原理,比较了基于刚度法和柔度法建立纤维模型梁单元矩阵的方法和特性。基于柔度法的纤维模型单元的特性是以单元的截面力形函数为基础,在整个计算的过程中,单元各截面内外力严格满足力的平衡条件,不受单元材料非线性状态水平的影响。在合适的纤维材料应力-应变本构关系的基础上,从构件单元层面的角度,推导建立了考虑材料非线性和几何非线性效应的L形钢管混凝土柱数值模型,对L形钢管混凝土轴压、压弯和滞回试验算例分别进行了仿真模拟,试验算例结果与数值结果吻合良好,从而验证了该数值方法的可行性和准确性。 Based on the principle of the fiber model finite element, the flexibility-based and stiffness-based models are compared, flexibility-based fiber model elements are based on force interpolation function, so that the the section forces and the section resisting forces can strictly keep balance during the whole analysis process, not influenced by the material nonlinearity. Base on the proper constitution model, the calculating model was established in the level of member element, which considering the nonlinear geometric effects and the nonlinear material effects. Meanwhile the experiments examples are simulated. The result obtained by the calculation is in good agreement with that obtained by experiments. Therefore it verifies the feasibility and correctness of this numerical model.
出处 《建筑钢结构进展》 2010年第4期11-16,共6页 Progress in Steel Building Structures
基金 上海市重点学科计划(0210121002)
关键词 L形钢管混凝土柱 非线性 纤维模型 有限元柔度法 L-shaped concrete-filled steel tube stubs nonlinear fiber model flexibility-based finite element method
  • 相关文献

参考文献12

二级参考文献11

  • 1邹离湘,硕士学位论文,1993年 被引量:1
  • 2滕智明,结构工程学报,1990年,3/4期 被引量:1
  • 3徐波,硕士学位论文,1989年 被引量:1
  • 4沈聚敏,钢筋混凝土结构的抗震性能,1981年 被引量:1
  • 5江见鲸,钢筋混凝土非线性有限元分析,1994年 被引量:1
  • 6Zeris C A, Mahin S A. Analysis of reinforced concrete beam-columns under uniaxial excitation [J]. Journal of Struct. Engrg., ASCE, 1988, 114(4): 804-820. 被引量:1
  • 7Zeris C A, Mahin S A. Behavior of reinforced concrete structures subjected to biaxial excitation[J]. Journal of Struct. Engrg., ASCE, 1991, 117(9): 2657-2673. 被引量:1
  • 8Taucer F F, Spacone E, Filippou F C. A fiber beam-column element for seismic response analysis of reinforced concrete structures[R]. EERC Report 91/17, Earthquake Engineering Research Center, University of California, Berkeley, CA, 1991. 被引量:1
  • 9Spacone E, Ciampi V, Filippou F C. Mixed formulation of nonlinear beam finite element[J]. Comput.Struct., 1996, 58(1): 71-83. 被引量:1
  • 10Takizawa H, Aoyama H. Biaxial effects in modeling earthquake response of R/C structures[J]. Earthquake Engineering and Structural Dynamics, 1976, 4(6): 523-552. 被引量:1

共引文献96

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部