预应力混凝土V形折板组合梁屋盖设计中的受力分析  

Prestressed Concrete V Folded Plate Composite Beam Roof Force Analysis

作　　者：郭鹏 凌霄 郭振永 GUO Peng;LING Xiao;GUO Zhenyong(Departement of International Project, SIPPR Engineering Group Co. , Ltd, Zhengzhou 450007, China)

机构地区：[1]机械工业第六设计研究院有限公司国际工程院,河南郑州450007

出　　处：《成组技术与生产现代化》2020年第1期55-58,共4页Group Technology & Production Modernization

摘　　要：以援建某国的体育馆项目为例,详细研究了预应力混凝土V形折板组合梁屋盖的受力特性和设计要点。通过对比分析,得出了简化的等代梁系模型对V形折板的空间效应不能有效体现、边界条件等代不够充分等结论。认为该结构应按照杆单元和弹性板单元建立模型并进行空间有限元受力分析,系统考虑屋面V形折板之间的相互约束,提高梁构件的轴力,降低其弯矩,以真实体现结构的受力状态。Taking an aided to a sports stadium project in a certain country as an example,the stress characteristics and design points of prestressed concrete v-shaped composite beam roof are systematically studied.In this paper,it is concluded that the simplified iso-generation beam system model can not effectively reflect the spatial effect of v-shaped folding plate,and the boundary condition iso-generation is not sufficient.It is suggested that this kind of structure should be modeled according to the bar element and elastic plate element,and the spatial finite element stress analysis should be carried out.In addition,this paper also puts forward some design Suggestions for reference.

关 键 词：大跨度 V形折板组合梁屋盖 预应力 

分 类 号：TU3[建筑科学—结构工程]