索拱吊挂轻型组合楼盖结构的静动力性能及张拉控制  

Study on Static and Dynamic Performance and Construction of Cable-arch Suspending Light-weight Combined Floor

作　　者：高维成[1] 刘凯[1] 刘宗仁[1] 

机构地区：[1]哈尔滨工业大学,150090

出　　处：《建筑结构》2007年第2期46-49,共4页Building Structure

摘　　要：采用有限元分析软件ANSYS对一种新型索拱吊挂轻型组合楼盖结构体系进行了静动力分析,并采用现场实测与计算机仿真分析相结合的方法对索拱吊挂楼盖的新型工艺进行了分析。结果表明,结构体系的基频较高,模态不密集;撑杆与拱型桁架梁连接处截面是索拱主要的控制截面;施工顺序影响整体结构的受力状态;张拉预应力索可以减小拱梁在使用阶段的单元应力,但在施工阶段,张拉预应力索却增加了拱梁的压应力,对结构产生了不利影响。The finite element analysis software ANSYS is used to analyze the static and dynamic performance of a kind of newtype space structure system of cable-arch suspending light-weight combined floor, and the method of survey on site combining together with computer emulation is adopted. The results show that the basic frequency is higher and the models are not dense; the major control section of the cable-arch structure is the connection of brace strut and arch beam; the construction order influences stress of whole structure, when cables are stretched ; cables tensioned may minish elements stress of arch-beams in working phase,but it increases the press stress in construction phase which brings disadvantage to the structure.

关 键 词：索拱体系 组合楼盖 吊挂结构 张拉控制 

分 类 号：TU378.204[建筑科学—结构工程]