双梁门式起重机水平刚度的计算

The Calculation of Horizontal Rigidity for the Gantry Crane with Double Beams

本文对起重机水平刚度的指标计算实行空间分析,充分考虑门式箱形空间结构中的广义约束力作用和刚度匹配影响,保证结构变形的连续性和协调性,对传统计算方法进行改进,提出新的实用计算公式,从而提高了对门式起重机水平刚度评价的真实度。

This article analyses in space coordinates the calulation of the indexes about crane's horizontal rigidity. It takcs fully account of the generalized restraint forces action in portal bridge box space structurc and rigitidy adaaption action. It ensures the harmony and continuity of deformation in structure. It revises the tradilional calculation mcthod, and puts forward the new factual calculation formulae, therefore, it improves the reality of commeit for gantry erane's horizontal rigitidy.