Construction method for hanging lifting-lug-free tower type equipment by fishing method

Abstract

The invention provides a construction method for hanging lifting-lug-free tower type equipment by a fishing method, and belongs to the field of building construction installation of middle-size and small-size tower type equipment. The tower type equipment is a hollow tower provided with connecting pipe openings on both the top and a tower body. The method is characterized in that one end of a steel wire rope is directly hung on a lifting hook of a crane; the other end of the steel wire rope passes into the tower from the connecting pipe opening formed in the top of the tower type equipment, then passes out from the connecting pipe opening formed in the side surface of the tower body and is then fixed onto an external connecting pipe arranged outside the tower body; a main crane is used for lifting; a sub crane is used for lower end lifting; and the lifting and the lower end lifting are performed at the same time. The construction method has the advantages of safety, high efficiency, simplicity and economic performance, and six to seven tower groups in open-air arrangement can be lifted every day.

Description

technical field [0001] The invention belongs to the field of construction and installation of small and medium-sized tower equipment, and in particular relates to a construction method for hoisting tower equipment without hanging lugs by using a fishing method. Background technique [0002] Tower equipment usually has lifting lugs welded before leaving the factory to create conditions for on-site hoisting, and the lifting lugs are used for hoisting on site. Some tower equipment is not equipped with lifting lugs when it leaves the factory, and the tower equipment delivered to the site is not allowed to perform welding operations on the tower body. The traditional and conventional hoisting method for hoisting tower equipment without lifting lugs is to use the bundling method. However, the bundling method is low in efficiency and high in risk, especially in winter construction sites located in central Inner Mongolia, where the daily average temperature is below -10°C , the dai...

AI Technical Summary

Problems solved by technology

The traditional and conventional hoisting method for hoisting tower equipment without lifting lugs is to use the bundling method. However, the bundling method is low in efficiency and high in risk, especially in winter construction sites located in central Inner Mongolia, where the daily average temperature is below -10°C , the daily maximum temperature is less than 0°C, and the wire rope becomes extremely hard. If you want to bind and hoist a stainless steel tower with a smooth surface in such a low temperature environment, from a safety point of view, the risk of bundling and hoisting is relatively high, especially in low temperature environments. It is even more difficult to bind the smooth stainless steel tower body with a 56mm steel wire rope. There are great potential safety hazards, and the equipment is prone to slipping, and the safety of hoisting is not guaranteed; It is not difficult to find that the time used for binding the lifting points accounts for more than half of the entire hoisting time, and it is difficult to guarantee the completion of the task as planned for projects with tight construction schedules; from the perspective of economic benefits, binding the lifting points will consume more manpower And mechanical shifts are not conducive to reducing costs, and it is difficult to maximize the benefits of equipment installation projects

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