Reinforcing method for improving net section strength and stability of old iron tower through outer back angle steel

Abstract

The invention discloses a reinforcing method for improving net section strength and stability of an old iron tower through outer back angle steel, which comprises the following steps of: calculating to obtain a part with weak bearing capacity of a main material of the iron tower, and rechecking the bearing capacity of the main material of the iron tower under a one-year flat working condition; and finally, additionally arranging unequal angle steel 2 on the outer side of the gusset plate 3 at the weak bearing capacity part of the iron tower main material for reinforcement, and additionally arranging a filling plate 7 between the unequal angle steel 2 and the iron tower main material 1 for auxiliary connection. According to the invention, the net section strength and stability of the iron tower are effectively improved, good economic benefits are achieved, installation is easy and convenient, and practicability is high.

Description

technical field [0001] This patent relates to a method for strengthening the net section strength and stability of old iron towers with outer back angle steel, which belongs to the field of overhead transmission line engineering. Background technique [0002] The ultimate bearing capacity of the transmission line towers that have been built is determined. With the increase of the service life of the towers, the bearing capacity of the old transmission line towers is reduced due to the corrosion of the tower components, and the bearing capacity of many old transmission line towers is difficult. Meet the new tower use standards and requirements. At this time, in order to meet the use standards or use requirements, the old transmission line towers that do not meet the use standards and use requirements will be abandoned or even pulled down, and new towers that meet the regulations will be rebuilt; Abandoning old transmission line towers will cause a lot of waste of resources, a...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a reinforcement method for improving the net section strength and stability of the old line iron tower with unequal angle steel on the outer back, on the basis of not replacing the whole foundation of the original tower, to improve the bearing capacity of the iron tower components, In order to solve the problem that the bearing capacity of the iron tower is weakened due to corrosion

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