框支墙梁有限元分析及内力统一简化计算  

FINITE ELEMENT ANALYSIS AND UNIFIED SIMPLE CALCULATION OF INTERNAL FORCES OF FRAME-SUPPORTING WALL-BEAMS

作　　者：白世和[1] 李晓文[1] 梁兴文[1] 曹慧[1] 

机构地区：[1]西安建筑科技大学,西安710055

出　　处：《工业建筑》2009年第S1期207-210,共4页Industrial Construction

基　　金：<砌体结构设计规范>修改组基金资助项目

摘　　要：目前框支墙梁结构广泛应用于我国城乡建设中,但计算比较复杂,阻碍了其在工程中的应用。采用常用材料和构件几何尺寸进行正交设计,对两跨至五跨(有洞口和无洞口)的24个框支墙梁构件在竖向荷载作用下进行有限元分析,进一步了解了框支墙梁的应力与组合内力的分布,通过对控制截面内力进行回归分析得出拟合内力图来包络有限元分析内力图,提出框支墙梁中托梁的内力简化计算公式。为工程设计和新规范关于墙梁涉及内容的修订提供建议,具有一定的社会和经济效益。The wall-beams supported on frame is widely used in China's urban and rural constructions at present,but more complicated calculation hampered its use in projects.and components used using orthogonal geometry design of materials and components,a FE analysis os given to 2 ～ 5 span(open hole and no hole) of the 24 wall-beams supported on frame components under vertical loads,a better understanding is got for the distuibution of the stess and combined internal forces of the box wall-beams.A cross-section regression analysis of internal force is done to fit the envelope finite element analysis of internal forces map,by which a simplified formula for calculating the internal force of such wall-beam joist is proposed.Which provides suggestions on engineering design and revision of new norms on the contents of the wall-beams.

关 键 词：框支墙梁 正交设计 有限元分析 简化计算 

分 类 号：TU398.9[建筑科学—结构工程]