某墙角牛腿钢骨结构受力机理研究  

Study on the stress mechanism of corbel steel structure at a wall corner

作　　者：舒华林 SHU Hualin(China Railway SIYUAN Survey and Design Group Co.,Ltd.Wuhan 430063)

机构地区：[1]中铁第四勘察设计院集团有限公司桥梁院,武汉430063

出　　处：《铁道勘测与设计》2020年第4期24-29,共6页Railway Survey and Design

摘　　要：在框架-剪力墙高层建筑中,为了优化空间布置,经常出现两个垂直方向的框架梁无法与核心筒剪力墙相交、相连的情形,此时需要设计特殊结构(墙角牛腿)将剪力墙角部与两框架梁连接起来。牛腿钢骨结构平面板架作为墙角牛腿的核心受力结构,确定其加劲梁布置型式是设计整个墙角牛腿非常关键的一步,目前规范中尚无这种墙角牛腿加劲梁的计算方法和设计规定。本文比较了两种墙角牛腿钢骨结构(加劲)方案,通过对这两种墙角牛腿钢骨结构的受力机理理论分析及ANYSYS有限元分析,确定了较为合理的墙角牛腿钢骨结构布置方案,对类似的工程实践具有重要的理论价值和工程意义。In the frame shear wall high-rise building,in order to optimize the spatial layout,it often occurs that two vertical frame beams cannot intersect and connect with the core tube shear wall.At this time,it is necessary to design a special structure(wall comer bracket)to connect the shear wall comer with the two frame beams.The corbel steel structure plane plate frame is the core stress structure of the corbel at the comer of the wall.It is a key step to determine the layout of the stiffening beam.At present,there is no calculation method and design regulation of the corbel stiffening beam at the comer of the wall in the code.In this paper,two kinds of wall comer corbel steel structure(stiffening)schemes are compared.Through the theoretical analysis and ANSYS finite element analysis of the two kinds of wall comer corbel steel structure,a more reasonable layout scheme of wall comer corbel steel structure is determined,which has important theoretical value and engineering significance for similar engineering practice.

关 键 词：墙角牛腿 约束扭转 矩阵位移法 有限元分析 受力机理 

分 类 号：TU3[建筑科学—结构工程]