摘要
采用有限元软件ANSYS,模拟了均布荷载作用下,周边简支混合配筋预应力混凝土密肋楼盖从开始加载到破坏的全过程,得到了极限荷载,荷载-挠度曲线和裂缝分布情况.分析表明,计算结果与试验结果吻合较好,从而验证了在对混合配筋预应力混凝土密肋楼盖进行非线性有限元数值模拟中,应用实体单元SOLID65和等效荷载法的合理性.
The finite element software was adopted in this thesis,and the process from loading to failure of four sides waffle slab floor with unbounded prestressed tendons and nonprestrcssed steel under the condition of distributed load was simulated, and the ultimate load, loaddeflection curves and the distribution of crack could be obtained. It was showed that the result of the experiment agree with the calculation closely, and the reasonableness of adopting solid element SOLID65 and equivalent load method in the nonlinear finite element numerical simulation of waffle slab floor with unbounded prestressed tendons and nonprestressed steel was proved.
出处
《湘潭大学自然科学学报》
CAS
CSCD
北大核心
2008年第4期60-64,共5页
Natural Science Journal of Xiangtan University
基金
湖南省教委资助项目
关键词
三维有限元数值模拟
等效荷载法
实体单元
极限荷载
荷载-挠度曲线
3D finite element numerical simulation
equivalent load method
solid element
ultimate load
load-deflection curves
