钢框架中组合楼盖的面内变形

IN-PLANE COMPOSITE FLOOR DEFORMATIONS IN STEEL FRAMES

  • 摘要: 为了研究影响钢-混凝土组合框架中组合楼盖隔板性能的因素,以楼板厚度、框架侧移刚度以及结构平面刚度布置为参数对钢框架中的组合楼盖进行了弹性有限元分析.分析结果表明,除长宽比外,组合楼盖的隔板性能还与其面内刚度以及支撑体系的特性有关. 根据分析结果提出了组合楼盖隔板性能的评价方法,并与试验结果进行了验证. 该方法可以为工程实践中评价组合楼盖的隔板性能作参考.

     

    Abstract: Elastic finite element analyses are conducted toinvestigate the factors influencing the membrane behavior of steel-concretecomposite floor slabs. Parameters include concrete slab thickness,lateral stiffness of frames and the arrangement of the lateral stiffnesssystem. The results show that the membrane behavior of composite floor slabsis influenced not also by the length-width ratio but also its in-planestiffness and the lateral system. A new method ofevaluating the membrane behavior of composite floor slabs is established basedon the parameter studies. The method is proved to be valid by comparisonwith the test results. The method mentioned in this paper provides auseful tool in composite floor slab design.

     

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