不同工况下基于MIDAS/FEA模型的脚手架可调托撑托板计算分析

Calculation and Analysis of MIDAS/FEA Model Based on Adjustable Scaffold Support Plate Under Different Working Conditions

为了得到不同工况下脚手架可调托撑托板的合理设计值,通过有限元分析软件MIDAS/FEA对可调托撑部分建立实体有限元模型,考虑托板处在弹性阶段并采用应力叠加与内力叠加的原理进行计算分析,得到不同分析工况下托撑托板的位移、应变、应力变化情况。结论如下:可调托撑的受压承载力设计值应≥40kN,并且可调托撑支托板侧翼的高度宜≥30mm,侧翼外皮的距离宜≥110mm,且宜≤150mm;而支托板的板长宜≥90mm,支托板板厚应≥6mm。

Under different working conditions,adjustable support part of the solid finite element model is established with finite element analysis software MIDAS/FEA in order to get the scaffold adjustable value for the reasonable design of support plate.Considering that the supporting plate is in the elastic stage,the principle of stress superposition and internal force superposition is used to calculate and analyze the displacement,strain and stress changes of the supporting plate under different analysis conditions.The design value of the bearing capacity of the adjustable brace should greater than 40 kN,and the height of the lateral wing of the adjustable brace supporting plate should be more than 30 mm,and the distance of the lateral wing skin should be 110~150 mm.The length of the supporting plate should be more than90 mm,and the thickness of the supporting plate should be more than 6 mm.