预制构件起吊冲击力的理论分析

Theoretical Study on Lifting Impulse and Adhesion of Prefabricated Component

用振动理论分析方法,给出了预制构件起吊冲击力的表达式及其与预制件自重力、地坪附着力和吊臂运动加速度的关系,指出在吊臂垂直运动加速度较小情况下,起吊冲击力幅值等于预制件自重力与地坪附着力之和。

A formula for lifting impulse of prefabricated components is presented on the basis of vibration theory.in which the relations of lifting impulse to the weight of prefabricated component .ground adhesion, and vertical acceleration of crane boom motion are given. It is shown that the maximum lifting impulse is equal to the sum of the weight of the component and the ground adhesion under the lower acceleration of crane boom motion.