T形异形柱的非线性有限元分析  

Nonlinear FEM Analysis of T Specially Shaped Columns

作　　者：高欣[1] 潘文[1] 

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650224

出　　处：《计算机仿真》2008年第10期210-214,共5页Computer Simulation

基　　金：云南省自然科学基金资助项目(2005E0024M)

摘　　要：分析了T形异形柱的受力问题,利用ABAQUS有限元软件对T形异形柱进行了弹塑性非线性有限元分析。着重从混凝土的非线性本构关系和破坏准则,受拉开裂后的行为,钢筋的本构关系几方面进行分析,通过计算绘制出了梁柱混凝土的应力云图、裂缝图及钢筋的应力云图。用ABAQUS计算所得的裂缝图与拟静力试验结果裂缝进行比较,两者结果吻合。结果表明:应用ABAQUS对异形柱进行非线性分析是可靠的,从而论证了软件的实际应用能力,也为进一步进行更复杂的非线性分析打下了基础。Using the finite element software of ABAQUS, this paper analyzed the T specially shaped columns stress problem and the elastoplasticity non -linear problem. On the other hand, it emphatically discussed the nonlinear constitutive relationship and failure criterion of concrete, post cracking behavior, constitutive relationship of bar, and drew up concrete stress contour plot of the beam and column, crack contour plot and stress contour plot of the bar through computation. Comparing the crack contour plot obtained by computation with that of the imitating statics test, both results were identical. It indicated that：using ABAQUS to carry out the nonlinear analysis of specially shaped columns is reliable and the practical application ability of the software is porved. Therefore, this study lays a solid foundation for more complicated nonlinear analysis.

关 键 词：异形柱 非线性有限元 应力云图 裂缝图 

分 类 号：TU375[建筑科学—结构工程]