Large-cantilever steel frame structure with pull rod and construction method thereof

Abstract

The invention discloses a large-cantilever steel frame structure with a pull rod and a construction method thereof. The steel frame structure comprises a core tube and N layers of steel frames erected on the core tube, wherein multiple layers of cantilever floors are arranged at the lower end of the side surface of a steel frame body; a temporary steel column support is arranged at the suspension point; multiple axial surfaces are longitudinally arranged on the steel frame body; the steel frames of upper and lower adjacent layers on the axial surfaces are fixed through a steel pull rod; and the steel pull rod is positioned on the outer side of the core tube and shows a slope shape with top inside and bottom outside. The method comprises the following steps: pouring the core tube, mounting the steel structures of the cantilever layers, erecting temporary steel column supports, setting up the steel pull rod, constructing a roof and a roof framework-layer steel frame and removing the temporary steel column support. The structure disclosed by the invention is suitable for hoisting a large cantilever structure and a steel structure with internal large space; and the whole structure is stable, the mounting precision is high, the safety coefficient is high, and overall construction difficulty is low.

Description

technical field [0001] The invention relates to the technical field of building cantilever construction, in particular to a large cantilever steel frame structure with tie rods and a construction method thereof. Background technique [0002] With the development of technology, in the field of modern building construction, high-rise buildings are gradually increasing. For the sake of aesthetics or technical requirements, high-rise buildings are often designed with external cantilever structures at the upper and middle parts of their main structures, and the external cantilever structures are usually realized by relying on external cantilever steel structure trusses. [0003] In the existing construction structures, cantilevered structures emerge in endlessly, but the application range of the existing cantilevered structures is limited. When encountering large cantilevered heights and cantilevered spans, the existing structures are not suitable, especially in When the interna...

AI Technical Summary

Problems solved by technology

[0003] In the existing construction structures, cantilever structures emerge in endlessly, but the application range of the existing cantilever structures is limited. When encountering large cantilever heights and cantilever spans, the existing structures are not suitable, especially in When the internal space has a high floor, the construction is more difficult

Specifically, in the construction of steel structures in tall and large spaces, the hoisting and installation of steel structures are greatly affected; the construction of high formwork is difficult and the risk factor is high; The hoisting and welding construction of steel structure is difficult

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