长沙冰雪世界巨型多截面预应力钢筋混凝土梁叠合法施工技术  

Superposition Technology of Huge Super Multi Section Prestressed Reinforced Concrete Beam in Changsha Ice and Snow World

作　　者：谭立新 郭朋鑫 何昌杰 宁志强 高峰奇 刘彪 TAN Lixin;GUO Pengxin;HE Changjie;NING Zhiqiang;GAO Fengqi;LIU Biao(China Construction Fifth Engineering Co.,Ltd.,Changsha,Hu＇nan 410004,China;College of Civil Engineering,Hu＇nan University,Changsha,Hu＇nan 410082,China)

机构地区：[1]中国建筑第五工程局有限公司,湖南长沙410004 [2]湖南大学土木工程学院,湖南长沙410082

出　　处：《施工技术》2018年第20期36-39,61,共5页Construction Technology

基　　金：中建总公司立项课题:百米深坑多功能复杂建筑绿色建造关键技术研究与应用项目(CSCEC-2016-Z-39)

摘　　要：详细阐述了混凝土叠合法浇筑的特点、施工工艺及梁下部支撑体系的设计处理。从现场混凝土浇筑效果来看,叠合法施工技术在保证足够安全储备的前提下,能有效减少下部临时支撑体系的投入,提高了现场模板的周转效率,降低了项目成本。The characteristics, construction technology, the design and treatment of the supporting system of the lower beam are described in detail. From the effect of on-site concrete placement, superposition construction technology can effectively reduce the investment of temporary support system under the premise of ensuring enough safety reserve, improve the turnover efficiency of field formworks, and reduce the cost of projects.

关 键 词：混凝土 预应力 巨型多截面梁 桁架 叠合法 施工技术 

分 类 号：TU755.2[建筑科学—建筑技术科学]