全现浇混凝土外墙窗角裂缝控制技术  

Crack Control Technology of Cast-in-place Concrete Window Corner

作　　者：黄毫春 李山 黄河 邓同泉 陈淀 马继锋 戴沫聪 HUANG Haochun;LI Shan;HUANG He;DENG Tongquan;CHEN Dian;MA Jifeng;DAI Mocong(China Construction Fifth Engineering Bureau Co.,Ltd.,Changsha,Hunan 410004,China)

机构地区：[1]中国建筑第五工程局有限公司,湖南长沙410004

出　　处：《施工技术》2020年第14期94-97,共4页Construction Technology

基　　金：湖南省住房和城乡建设厅课题:建筑工程快速建造成套关键技术研发(KY201923)。

摘　　要：润石柏宁花园27~34号楼外墙为全现浇混凝土结构,构造墙与结构受力墙之间设计采用结构拉缝的软连接施工工艺。结构拉缝对建造成本和施工工期的制约较大,故以结构力学模型分析为基础,对窗角增加斜向加强筋进行整体受力计算。计算结果表明,加强筋的使用能显著提高窗角混凝土抗裂变形能力;且能达到降低建筑成本和缩短施工工期的目的。The exterior wall of building 27 ~ 34 of Runshi Baining Garden is a fully cast-in-place concrete structure. The soft connection construction technology of structural joint is adopted between the structural wall and the structural stress wall. The construction cost and construction period are greatly restricted by the structural tension joint,so the overall stress calculation is carried out by adding the window angle diagonal stiffener based on the structural mechanics model analysis. The calculation shows that the use of stiffeners can significantly improve the anti-crack deformation of the corner concrete of the window,and can reduce the construction cost and shorten the construction period.

关 键 词：混凝土 全现浇外墙 加强筋 裂缝 有限元分析 应力 变形 

分 类 号：TU755.7[建筑科学—建筑技术科学]