模板支撑体系与混凝土楼板协同作用的有限元分析  

FINITE ELEMENT ANALYSIS OF COOPERATIVE EFFECTS OF FORMWORK-SUPPORTING SYSTEM AND CONCRETE FLOORS

作　　者：胡长明[1] 赵云波[1] 汪杰 刘凤云[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]成都市CCDI悉地国际设计有限公司,成都610000

出　　处：《工业建筑》2014年第5期106-110,共5页Industrial Construction

基　　金：国家自然科学基金项目(50978219);陕西省教育厅专项科研计划项目(12JK0898)

摘　　要：对于模板支撑体系的分析大多是以其空间的整体稳定性为核心,而通常忽略了模板支撑体系与板体的协同承重作用对结构可靠度的贡献。通过对某地铁换乘站顶板施工时其下部板体与模板支撑体系的协同作用,进行二重非线性状态的数值分析,确定结构顶板在施工时中板下部模板支撑体系存在的必要性,并通过有限元分析得出,模板支撑体系在双向荷载作用下所反映出的水平位移变化趋势为平卧的抛物面形式,且抛物面开口方向与力的指向相反,这与单向受力的模板支撑体系所体现出的从上到下逐渐减小的水平位移变化趋势完全不同。The analyses of the supporting system for formwork almost just take the integrated stability of its space as its core while ignoring the contribution by the cooperation of the supporting system for formwork and the concrete floor to the reliability of a structure .In this paper , the necessity of the existence of the supporting system for formwork under the medium plate in the construction process of a structure ’ s backing deal was being established by analyzing the synergy of the supporting system for formwork and the bottom board of a subway transte station under construction with double nonlinear numerical method .It was also concluded that procumbent paraboloid was the form of the trend of the horizontal shift of supporting system for formwork under two-way load by using finite element analysis , and the open side of the paraboloid was opposite to the direction of the force , which was totally different to the decreasing trend from the top to the bottom of the horizontal shift of the supporting system for formwork under one -way load.

关 键 词：模板支撑体系 现浇混凝土楼板 协同作用 有限元分析 

分 类 号：TU755.2[建筑科学—建筑技术科学]