倒落抱杆整立杆塔最优吊点的确定准则

Principles to Determine the Optimum Hoisting Points for Pole-towers Erected Completely with Inverted Holding Poles

倒落抱杆整立杆塔施工中 ,吊点位置的确定是一项非常重要的设计内容。采用“弯曲应变能最小”准则 ,搜索最优吊点位置 ,可显著降低杆塔最大截面弯矩 ,使之满足杆塔结构强度及抗裂要求。该法适用于任意多吊点、任意荷载、任意变截面等多种情况。

For construction of complete pole-tower with inverted holding poles the determination of hoisting points is a very important design content.Applying the principle of “minimum bending strain energy”to seek for the optimum location of hoisting points can obviously reduce the maximum sectional bending moment,which can meet the requirements for structural strength and anti-crack of pole-towers.The method is suitable for many conditions of optional multiple hoisting points,optional load and optional variable sections.[