引言 对於在垂直於板面的荷重与在板平面内有張力或压力共同作用的簡支边矩形板,及在彈性地基上的簡支边矩形板,在理論上我們可用双重三角級数表示板的撓曲面。但由於在計算弯矩时,級数的收斂很慢,所以双重三角級数的解法就沒有多大的实用价值。因此,一般仍採用勒維(Levy)解只有垂直於板面的荷重作用时的解法,即設 INTRODUCTION For a simple-supported rectangular plate in which the load perpendicular to the plate surface is combined with tension or pressure in the plane of the plate, and a simple-supported rectangular plate on an elastic foundation, theoretically we can use a double triangular series to represent the deflection of the plate. Surface. However, due to the slow convergence of the series when calculating the bending moment, the solution of the double triangular series does not have much practical value. Therefore, Levy is usually used to solve the solution when the load is perpendicular to the plate surface.