独立式塔吊基础抗倾覆稳定分析

Stability analysis on overturning resistance of concretre foundation for indepedant tower cranes

近年来,塔吊频繁发生重大工程事故,而现行规范中有关独立式塔吊混凝土基础抗倾覆稳定验算的规定存在不足,使设计的独立式塔吊偏不安全,所以,独立式塔吊基础抗倾覆稳定分析具有工程价值。

In recent years,serious engineering accidents of some tower cranes are occured frequantly.Some deficiencies about the rules of stability checking on ouerturning resistance of concrete foundation of indepedent tower cranes still exist in current regulations, it lead to the unsafety of the independent tower cranes,so it has engineering worth to make stability analysis on the basic overturning resistance of the independant tower cranes. The stability checking of overturning resistance and the correction of stability coefficient are finished in the aticle, a conclusion is obtained that the coefficient of basic overturning resistance changes between the upper and lower limitation instead of only lower limited condition.