Method for selecting hoisting steel wire rope

Abstract

The invention provides a method for selecting a hoisting steel wire rope. The method comprises the following steps that according to rope diameter parameters, rope core type parameters, minimum breaking tensile force parameters and unit quality parameters of a plurality of steel wire ropes included in selected steel wire rope models, a steel wire rope characteristic table is established; accordingto the length of the required steel wire rope, the net weight of each steel wire rope under the length is obtained according to the unit mass of the steel wire rope in the steel wire rope characteristic table; according to the formula P = Fmin / eta-Ggss*eta, an allowable hoisting load P of each steel wire rope is calculated, wherein and Fmin is the minimum breaking tensile force of the steel wirerope, eta is the safety coefficient and is selected according to the industry standard requirement, and the Ggss is the steel wire rope net weight; a suspension point load P0 of the steel wire rope isacquired, wherein P0 is a suspension point counter-force value or a single-point suspension load value; and a hoisting steel wire rope is selected from the steel wire ropes meeting the condition thatthe P is larger than the P0. The method for selecting the hoisting steel wire rope, the steel wire rope is selected after a net weight load of the steel wire rope is removed, the selection accuracy of the steel wire rope can be improved, repeated checking and calculation are avoided, and the selection process of the steel wire rope is simplified.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a method for selecting hoisting wire ropes. Background technique [0002] Since the construction work surfaces of high-rise buildings, tunnel shafts, hydropower stations and other projects are far away from the ground, construction materials and construction platforms need to be hoisted at high altitudes and long distances. Due to the increase of the length of the steel wire rope during hoisting, the load effect of its own weight on the steel wire rope increases accordingly, and the self-weight load of the steel wire rope cannot be ignored when selecting the steel wire rope. In the prior art, the selection process of the steel wire rope is often based on the lifting point load P of the steel wire rope 0 Pre-select the applicable steel wire rope, and then calculate the self-weight G of the steel wire rope according to the unit mass and length of the selected steel wire rop...

AI Technical Summary

Problems solved by technology

In the prior art, the selection process of the steel wire rope is often based on the lifting point load P of the steel wire rope 0 Pre-select the applicable steel wire rope, and then calculate the self-weight G of the steel wire rope according to the unit mass and length of the selected steel wire rope gss , and finally P 0 with G gss Sum up to get the hoisting weight resultant force P of the steel wire rope 合 , it is easy to appear P during this calculation 合 >P, where P is the allowable hoisting load of the steel wire rope. At this time, it is necessary to repeat the calculation, and the efficiency is low; 合

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