框支密肋壁板结构墙梁的非线性有限元分析  

NONLINEAR FINITE ELEMENT ANALYSIS OF FRAME-SUPPORTED MULIT-RIBBED WALL BEAM

作　　者：魏晓[1,2] 张茂功[2] 张建才[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]中国人民解放军总后建工所,西安710032

出　　处：《建筑技术开发》2006年第12期21-23,80,共4页Building Technology Development

基　　金：国家“十五”科技攻关课题资助项目（2002BA806B05）.陕西省教育厅自然科学专项基金（06JK264）

摘　　要：墙梁作为框支密肋壁板结构的主要受力构件，其受力特性、构造处理比较复杂。以课题组前期试验的一榀框支密肋墙梁为例，详细探讨了混凝土、砌块和钢筋的本构模型，单元特性，裂缝处理，联结问题以及有限元模型的建立，完成对墙梁的非线性数值分析，并与试验结果进行比较，二者吻合较好。针对试验研究的局限性，通过试验验证的有限元计算模型可以提供结构更多的相关信息，从而可以建立更为有效的结构简化计算模型。The wall beam, whose mechanical characteristics and detail measures are complex, is a main lead-bearing member of the frame-supported multi-ribbed slab structure. Based on a former test of frame-supported multi-ribbed wall beam, constitutive relation and element characteristic of concrete, block and steel bar are discussed. Processing method of crack and connecting method are put forward. And by establishing nonlinear finite element analysis model and nonlinear numerical analysis of wall beam, the result of the experiment and nonlinear numerical analysis are matched through comparing. Because of limitation of experimental research, effective structure calculation model can be established by experimental testing finite element analysis model which can provide more correlative information.

关 键 词：非线性有限元 本构关系 墙梁 

分 类 号：TU973.19[建筑科学—结构工程]