基于弯矩影响面方法的单向板移动荷载最不利位置研究

Analysis of Most Adverse Position of the Moving Load on the Inner Force of the One-way Slab Based on the Method of Influence Surface

采用影响面的方法,运用matlab数值分析软件对移动荷载下板的弯矩变化进行了模拟分析.通过控制板的长短边比例,得出不同工况下移动荷载的最不利位置,同时对影响最不利位置的因素进行了相关的模拟研究,得出了长宽比越大的板,其受移动荷载的影响越小的结论.对今后具体的工程计算具有一定的参考意义.

Influence surface method was introduced in this paper to analyze the changes of bending mo -ment of plate under moving load using the matlab numerical analysis software .Through controlling the length -width ratio of the plate , the most unfavorable position of moving load was concluded under different working con -ditions.At the same time, the simulation research of effect factors of the most unfavorable position was conduc-ted , and a conclusion that the bigger of the length -width ratio , the smaller effect by the moving load was made . It has a certain reference on the calculation of specific projects .