混合配筋预应力混凝土密肋楼盖三维有限元数值模拟  

3D Finite Element Numerical Simulation for Waffle Slab Floor with Unbonded Prestressed Tendons and Nonprestressed Steel

作　　者：周长顺[1] 刘忠[1] 杨涛[1] 

机构地区：[1]湘潭大学土木工程与力学学院,湖南湘潭411105

出　　处：《湖南工程学院学报（自然科学版）》2008年第3期87-90,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

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,荷载一挠度曲线和裂缝分布情况.分析表明,计算结算与试验结果吻合较好,从而验证了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 is adopted in this thesis. The process from loading to failure of four sides waffle slab floor with unbounded prestressed tendons and nonprestressed steel under the condition of distributed load is simnulated. The ultimate load,load-deflectin curves and the distribution of crack can be obtained. It is showed that the result of the experiment is in agree ment with the calculation closely. The reasonableness of adopting solid elenment SOLID65 and equivalent load method in the nonlinear finite element numerical simulation of waffle slab floor with unbouded prestressed tendons and nonprestressed steel is also proved.

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 荷载一挠度曲线 

分 类 号：TU378.1[建筑科学—结构工程]