Novel large-span prestressed rigid body giant space conversion structure and construction method thereof

Abstract

The invention provides a novel large-span prestressed rigid body giant space conversion structure and a construction method thereof. The conversion structure comprises two obliquely pressed columns, alower chord prestressed tension beam, a middle prestressed tension pulled column, conversion columns, a middle-layer common beam, frame columns and a converted frame column; prestressed steel bars are arranged in the lower chord prestressed tension beam and the middle prestressed tension pulled column respectively, the two obliquely pressed columns and the lower chord prestressed tension beam define an isosceles triangle structure, the tops of the two obliquely pressed columns of the isosceles triangle structure are intersected and fixedly connected with the bottom of the vertical converted frame column, and the bottoms of the two obliquely pressed columns of the isosceles triangle structure both penetrate through the middle-layer common beam and are connected with the corresponding endsof the lower chord prestressed tension beam respectively. The conversion structure and the construction method thereof solve the problems that conversion beams have too large internal forces, the purposes of high seismic resistance and safety of structures are difficult to achieve, the use effect of building spaces is affected, and conversion of super-large-span structures is difficult to achieve.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a novel large-span prestressed rigid body giant space conversion structure and a construction method thereof. Background technique [0002] In existing multi-story buildings, due to the need for building space, columns are usually drawn from the bottom floors of the building to make support column conversion structures. The support column conversion in current multi-high-rise structures is mainly based on beam conversion, and the conversion beams are mostly made of solid concrete. Beam, beam height is usually 0.8-2.5 meters. [0003] The problems of using ordinary concrete beams are: (1) The concrete beam has a large cross-section, and there are more concrete and steel consumables; (2) When the width and height of the beam are too large, a large volume of concrete is formed, the construction quality is not easy to guarantee, and the construction is difficult ; (3) Th...

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a new type of large-span prestressed rigid body giant space transfer structure and its construction method, which solves the problem that the internal force of the transfer beam is too large, it is difficult to achieve the goal of strong seismic performance and safety of the structure, and the impact on the use of building space effect and the difficulty in realizing the transformation of super-long-span structures

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