IN-PLANE COMPOSITE FLOOR DEFORMATIONS IN STEEL FRAMES
钢框架中组合楼盖的面内变形

Elastic finite element analyses are conducted to investigate the factors influencing the membrane behavior of steel-concrete composite floor slabs. Parameters include concrete slab thickness, lateral stiffness of frames and the arrangement of the lateral stiffness system. The results show that the membrane behavior of composite floor slabs is influenced not also by the length-width ratio but also its in-plane stiffness and the lateral system. A new method of evaluating the membrane behavior of composite floor slabs is established based on the parameter studies. The method is proved to be valid by comparison with the test results. The method mentioned in this paper provides a useful tool in composite floor slab design.