大跨度空腹夹层板楼盖的静力稳定性分析  

The Static Stability Analysis of Large Span Vierendeel Sandwich Plate Floor

作　　者：张瑞鹏[1] 马克俭[1] 刘卓群[1] 杨志勇[1] 孙敬明 华建坤 张震[1] 

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550003

出　　处：《贵州大学学报（自然科学版）》2015年第5期91-94,共4页Journal of Guizhou University:Natural Sciences

基　　金："十二五"国家科技支撑计划--大型建筑钢-混凝土组合结构体系关键技术研究(2011BAJ09B01-01)

摘　　要：针对大跨度钢筋混凝土空腹夹层板楼盖结构体系,应用大型有限元分析软件ANSYS对这种新型结构的23个模型进行分析,采用线性有限元法计算。通过研究特征值屈曲分析其静力稳定性能,并分析了空腹夹层板厚度、上下肋高度和表层薄板厚度在不同数值时对结构静力稳定性的影响。分析结果表明,空腹夹层板线性屈曲时以整体失稳为主,稳定性较好。空腹夹层板的厚度、上下肋高度和表层薄板厚度对结构的静力稳定性都有一定的影响,取适当的数值可显著提高结构的特征值屈曲荷载。As to the large span reinforced concrete vierendeel sandwich plate floor structure system, the large- scale finite element analysis software ANSYS was applied to analyzing 23 of this kind of new structure model, and the linear finite element method was also adopted to calculate. By studying the value for the eigenvalue buckling analysis of its static stability, and analyzing the influence on the structure of the static stability made by the vier- endeel sandwich plate thickness, rib height and up and down surface sheet thickness when in different value, the result indicates that when the vierendeel sandwich plate of linear buckling is whole-instability-based, the stability is good. In conclusion, Vierendeel sandwich plate thickness, rib height, and up and down surface of sheet thick- ness all, to a certain degree, have an effect on the static stability of the structure, and selecting the appropriate number can significantly increase the eigenvalue buckling load of the structure.

关 键 词：空腹夹层板 ANSYS有限元分析 特征值屈曲 静力稳定性 

分 类 号：TU312[建筑科学—结构工程]