钢筋混凝土坡屋面有限元分析.pdf

第 39 卷第 1 期建筑结构 2009 年 1 月
钢筋混凝土坡屋面有限元分析
1 1 2
张伟, 刘俊, 梁兴文
( 1 香港华艺设计顾问( 深圳) 有限公司, 深圳 518031; 2 西安建筑科技大学, 西安 710055)
[ 摘要] 以目前实际工程中应用较多的钢筋混凝土坡屋面作为研究对象, 将组成这种屋面的基本单元分类, 分别对
基本单元和工程实例进行对比计算。指出坡屋面的屋脊线能起到类似梁分割楼板的作用, 屋脊线相互支撑, 整个楼
盖共同工作作用明显; 分析了坡度变化对坡屋面内力的影响。在不影响建筑功能的前提下, 针对坡屋面斜向推力的
水平分量会对柱顶产生较大弯矩的问题, 提出解决办法。总结了坡屋面受力特点和实际工程设计中应注意的问题。
[ 关键词] 钢筋混凝土; 坡屋面; 有限元分析; 屋脊线
Finite element analysis of RC pitched roof
Zhang Wei1 , Liu Jun1 , Liang Xingwen2
( 1 Hong Kong Huayi Design & Consultant Co. , Ltd. ,Shenzhen 518031, China; 2 Xipan Univ. of Arch. and Tech. , Xipan 710055, China)
Abstract: The RC pitched roof which is often applied in practice is analyzed. The bended line of slab can operate as beam, and
fastigium can support one another. The cooperation is obvious in whole floor. M eanwhile, the effect on the internal force in pitched
roof differs from gradient. On condition that the buildingps function is not effected, the solution on that the horizontal projection of
thrust in RC pitched roof can cause biggish bending moment in top of column is brought out. The characteristic of the mechanics in
pitched roof and the problem should be paid attention to in practice are summarized.
Keywords: RC; pitched roof; finite element analysis; fastigium
1 前言
随着现代建筑立面多样化的市场需求, 钢筋混凝
土坡屋面的应用越来越多。坡屋面的梁、板和柱顶面
标高均随屋面坡度的变化而变化, 其受力性能与平面
楼盖相比有较大差异。目前对此类问题的研究较少,
有必要对其