High-altitude support-free segmented butt joint installation method for section steel beams

Abstract

The invention discloses a profile steel beam high-altitude support-free segmented butt joint installation method. A first hanging ring and a second hanging ring are arranged at the positions, close to one ends, of a first cantilever steel beam section and a second cantilever steel beam section correspondingly; a third hoisting ring and a fourth hoisting ring are respectively arranged on a first steel column and a second steel column for fixing the steel beam; after the first cantilever steel beam section is lifted to the installation position, the other end of the first cantilever steel beam section is connected with the first steel column, and the first lifting ring and the third lifting ring are connected through a first inhaul cable; after the second cantilever steel beam section is lifted to the installation position, the other end of the second cantilever steel beam section is connected with a second steel column, and a second lifting ring and a fourth lifting ring are connected through a second inhaul cable; and after the empty filling steel beam section is hoisted to the installation position, one end is connected with one end of the first cantilever steel beam section, and the other end is connected with one end of the second cantilever steel beam section. The problems that in the prior art, under the condition that the site is limited, overall hoisting exceeds the capacity of hoisting equipment, and time is consumed for erecting and assembling a bracket, and the bracket is not economical are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to a high-altitude support-free segmented butt installation method for a profiled steel beam. Background technique [0002] In the construction process of some buildings with large-span space requirements, the installation of super-long or super-heavy steel beams is often encountered. Due to the large size of the building, the hoisting machinery is often hoisted with steel beams at the periphery of the building, and the site is limited. , the hoisting radius is far. If the profiled steel beam is assembled on the ground to be lifted as a whole at one time according to the conventional method, the weight will exceed the lifting capacity of conventional equipment, and the profiled steel beam will be longer after being assembled as a whole, and the safety risk of one-time lifting is high. Docking is time-consuming and uneconomical. SUMMARY OF THE INVENTION [0003] Aimin...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a segmented butt joint installation method of steel girders at high altitude without supports, which effectively solves the problem in the prior art that the overall hoisting exceeds the capacity of the lifting equipment under the condition of limited space. It is time-consuming and uneconomical to assemble with erection brackets

Images