Through analyzing bending stiffness of composite slabs in the paralled and cross wise wave direction of steel sheet , the author got load - bending stiffness in these two directions . with the finite elements method , the author studied the mechanism and load - carrying characters under uniform loading of composite slabs and put forward a theorem calculating distortion and analyzed crash mode of this structure 通过分别对组合板沿压型钢板波纹方向和垂直于压型钢板波纹方向弯曲刚度的分析，得出型钢和压型钢板与混凝土组合板两个方向的抗弯刚度，采用有限元分析方法，研究组合板在均布荷载作用下的工作机理和受力性能，提出挠度计算公式。
