摘要
在小间距钢梁混凝土楼盖体系中,以模型试验为基础,通过对无板楼盖和有板楼盖数值模拟,分析小间距钢梁现浇混凝土空心楼盖体系中混凝土板对钢梁刚度的作用.通过有限元分析,得到了混凝土板对小间距钢梁楼盖刚度计算的影响因素,结合模型试验结果,建立了能反映混凝土楼板影响的小间距钢梁混凝土楼盖变形计算模型.试验结果表明,在结构使用阶段考虑混凝土楼板的共同作用,可使楼盖等效刚度提高50%左右.研究结果为此类结构变形计算提供具有参考价值的分析方法,可为实际工程设计提供参考.
In the concrete floor with small spacing steel beam system, based on model test, this paper studies the enhancement effect made by a concrete slab on steel beam rigidity in the concrete hollow floor with small spacing steel beam system by numerical simulation about floor without slab and floor with slab. Through the finite element analysis, the factors affecting the concrete slab floor of floor with small spacing steel beam＇s stiffness calculation are obtained. According to the model test result, the deformation calcula- tion model of concrete floor with small spacing steel beam is established. It can reflect the impact of the concrete slab. Test and analysis results show that when the combined effect of concrete slab in the use phase of structure is taken into consideration, equivalent stiffness of floor can increase by about 50%. The results of this study can provide a reference numerical analysis method for caleulating the deformation of such structures and reference for engineering design.
出处
《湖南工程学院学报（自然科学版）》
2015年第4期78-82,共5页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省教育厅资助项目(14C0619)
关键词
钢梁楼盖
有限元分析
楼盖刚度
混凝土空心板
floor with steel beam
finite element analysis
floor stiffness
concrete hollow floor
