摘要
应用有限元分析软件ANSYS对静力荷载作用下的Π型悬挑楼梯进行了结构非线性分析。在竖向荷载作用下,当平台板的荷载值增大到0.007 2 N/mm2时,结构的变形发生在平台板端部,最大变形值为3.065 1 mm;楼梯跑之间的相互作用使得楼梯在XOY平面X方向有较大的变形,结构的塑性区分布集中表现在结构裂缝出现的位置。
This paper carried out a structural nonlinear analysis on the П typical cantilever reinforce concrete stair in the condition of static load with finite element analysis program ANSYS. It was obtained that the most structural deformation value is 3. 065 1 mm, when the load value of flat pallet is 0. 007 2 N/mm^2 with vertical load, and this point of the most deformation lies in the end of flat pallet. There is the major deformation in XOY plane because of the stairs interaction. The crack position should be strengthened in design. 10 figs, 7 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第6期52-54,共3页
Journal of Chang’an University(Natural Science Edition)
基金
陕西省自然科学基金项目(2003E215)
关键词
建筑工程
悬挑楼梯
钢筋混凝土
材料非线性
有限元分析
construction engineering
cantilever stair
reinforce concrete
material nonlinear
finite element analysis
