摘要
针对双曲抛物面(HP)混凝土薄壳结构可能出现的几何缺陷问题,根据假设的几何缺陷函数,采用混凝土弥散开裂模型,通过对存在几何缺陷双曲抛物面薄壳结构性能采用大型通用有限元软件Abaqus进行分析。得出结构中几何缺陷削弱了结构的极限承载力,结构的几何缺陷减小了结构的刚度。
Aiming at possible geometry imperfection of hyperbolic paraboloid（HP） twisted shell,finite element is performed based using the Abaqus program.Based on assumed functions of geometry imperfection,finite element analysis concerning mechanical property of HP shell with geometry imperfection are performed by using concrete smeared cracking mode.In these analyses,conclusions are drawn that the ultimate load of HP shell is weakened by geometry imperfection,and the stiffness of the structure decreases.
出处
《低温建筑技术》
2012年第2期35-37,共3页
Low Temperature Architecture Technology
关键词
双曲抛物面
混凝土薄壳
几何缺陷
极限承载力
hyperbolic paraboloid roof
RC shell
geometric imperfection
ultimate load
