Lower lifting point lifting device and lower lifting point integrated integral lifting method

Abstract

The invention provides a lower lifting point lifting device and a lower lifting point integrated integral lifting method, and relates to the field of steel structure engineering. The lifting device issymmetrically distributed on the circumference of a truss, and the lower lifting point lifting device comprises a lifting support, a hydraulic lifter, a steel strand, a lifting plate and two sets ofconnecting rods. According to the lower lifting point lifting device and the lower lifting point integrated integral lifting method, the lifting point form is simplified, three temporary rod pieces are omitted, the measure amount of a temporary structure is reduced, a large amount of high-altitude disassembling work after lifting in place is greatly reduced, and the construction period is shortened; and the truss is integrally lifted to the designed elevation, then rod piece welding and two sets of upper chords at the opening alignment position are carried out, the construction amount and construction difficulty of the site high altitude are greatly reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the field of steel structure engineering, in particular to a hoisting point lifting device and a hoisting point integral hoisting method. Background technique [0002] The truss structure is a beam-type member, which is an "open belly beam" composed of multiple small-section rods, and is a statically determinate structure; because its section can be made very high, it has a large bending resistance, and the deflection Smaller, this can be suitable for a larger span than the solid web beam, and it saves materials and has a small dead weight; the truss structure is often used in public buildings such as large-span factories, exhibition halls, gymnasiums and bridges; Structures, trusses are also commonly referred to as roof trusses. [0003] The main body of the truss is usually welded on the ground, and then hoisted in place by hoisting equipment. The traditional method: the structure of the temporary lifting point for conventio...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned construction methods have disadvantages: first, the construction is difficult and the installation is difficult; second, the deformation control is difficult during the lifting process; third, the construction cost is high; fourth, the construction period is long

Images