one specimen is fitted up with anti-punching shear bars and the other is not . 2 ) the elastic-plastic analyses of two experimental elements under uniaxial reversed loads are made by ansys ( a finite element analysis program ) and the results of analysis match the experimental results very well 2.进行了钢筋混凝土承台-钢柱脚试件的弹塑性有限元建模,用ansys有限元程序对其进行了全过程弹塑性分析,计算结果与实测结果吻合较好。
a space geometric non-linear static finite element analysis program about the long span plate-truss composite cable-stayed bridges is presented . not only it can be used to solve the space static analysis about the state of the dead load configuration ( geometry and internal forces ), but also it can be used to analyze the internal forces and deformations of the whole construction course 基于以上理论,并结合斜拉桥的施工过程,编制了大跨径斜拉桥的空间几何非线性静力分析程序,既可用于斜拉桥成桥状态的空间静力分析,也可结合斜拉桥的具体施工过程,进行施工过程中的内力与变形状态的跟踪分析。
based on the generalized variational principle of the modificatory variables and substituent shearing strain field interpolation of the bending theory of the mindilin plate, this paper brings up the nine-node mixed plate bending element and adopts the sap2000 ? a large-scale finite element analysis programs . by the examples, we find the precision of the method is satisfying 在对转换层厚板进行局部有限元分析时,本文提出了基于mindlin中厚板弯曲理论的修正的二类变量广义变分原理和替代剪应变场插值方法的九节点厚薄板通用的板弯曲单元,并采用了sap2000有限元程序。
in this paper, the author combines the theory analysis with the experiment research method, and discusses the seismic behaviours, 3d elaborate finite element analysis and simplified model analysis of a kind of multi-function tall building-" sub-shearwall supported by frame ", which is applied widely today . the main contents are as follows : in order to observe the failure process and the earthquake response of the complex structure, and to analysis the seismic behaviour of the structural system and structural members, a 1 / 20 cement mortor model of a complex tall-building which is about to be built was producted and the shaking table test of this model under 26 sorts of earthquake loads was made . using sap2000 finite element analysis program, a 3d analysis model was built in computer, and the elastic time-history analysis of the model was done 本文采用理论分析和试验研究相结合的方法,研究了目前应用较多的综合性大厦??框支分区剪力墙高层商住楼的抗震性能及空间精细分析和简化分析方法,主要内容为以下几方面:对一拟建的复杂高层建筑结构,采用120比例的空间整体模型,进行了26种工况下的模拟地震振动台试验,观察了结构的破坏过程和地震反应,分析了结构及构件的抗震性能;建立了结构的精细空间模型,利用sap2000n大型有限元分析程序对结构进行了弹性时程分析;通过有限元分析与试验结果的对比,对结构的抗震性能和抗震能力做出综合评价,认为该结构由于转换层上部去掉部分楼板,既可满足建筑设计的通风、采光等要求,又可达到协调结构转换层上、下楼层抗侧刚度的效果,是一种较理想的有多道抗震防线的结构型式。
first, the constitutive model of concrete based on micropiane theory is studied and the constitutive behaviors of high-strength concrete and steel fiber reinforced concrete are described . second, the material nonlinear finite element analysis program of concrete plate, shell and box-section structures is developed . third, the sttuctural behaviors of test beams are simulated by the program developed by the aathol in the first part, the constitutive model of concrete, a key matter of material nonlinear finite element analysis of concrete structure, is studied 作为整个课题的组成部分,笔者的博士论文中进行了以下几个方面的研究:(1)基于微平面理论的混凝土本构模型的研究和基于该理论的高强混凝土与钢纤维混凝土本构行为的描述;(2)混凝土板、壳及箱型结构非线性有限元分析的研究;(3)预应力高强混凝土变截面箱型连续梁结构行为的数值模拟。