Steel pipe concrete column variable section broken-line-shaped steel bracket and connecting construction method thereof

Abstract

A steel pipe concrete column variable section broken-line-shaped steel bracket comprises an upper flange plate, a lower flange plate and a web perpendicularly connected between the upper flange plate and the lower flange plate. The upper flange plate and the lower flange plate are the same in structure and each comprises N flange plate bodies and N-1 transition sections. Every two adjacent flange plate bodies are connected through one corresponding transition section, and thus a broken-line-shaped multilayer structure is formed. The elevation of the flange plate bodies is sequentially decreased section layer by section layer, the width is decreased layer by layer, the height difference between every two adjacent flange plate bodies is 2d, and d is the steel bar diameter. A construction method of the variable section broken-line-shaped steel bracket comprises the following steps of S1, variable section broken-line-shaped steel bracket deep design, S2, steel bracket segmented manufacturing in a processing factory, S3, steel pipe column and steel bracket field installation welding, S4, simulation test, steel bar welding and binding, and S5, concrete pouring and maintenance. According to the construction method for connecting a steel pipe concrete column with a concrete beam by using the variable section broken-line-shaped steel bracket, operation is easy and convenient, the construction process quality is controllable, and the structure safety can be improved.

Description

technical field [0001] The invention relates to a building structure and a construction method, in particular to a steel corbel with a variable cross-section broken line of a steel pipe concrete column and a construction method thereof. Background technique [0002] Reinforced Concrete Beam (RC Beam) - Steel Tube Concrete Column Composite Structure Beam-column joints are also called the joint core area, because the stress in this area is complex and concentrated, its destruction can lead to the collapse of the entire structural system, so the design of beam-column joints is also The focus of this composite structure; since the connection between reinforced concrete beams and steel pipe concrete columns involves the connection between two different structures, there have always been great technical difficulties in the joint structure processing: beam reinforcement, column reinforcement, corbels, stiffening plates, etc. The staggered collection, the narrow construction space f...

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Problems solved by technology

[0002] Reinforced Concrete Beam (RC Beam) - Steel Tube Concrete Column Composite Structure Beam-column joints are also called the joint core area, because the stress in this area is complex and concentrated, its destruction can lead to the collapse of the entire structural system, so the design of beam-column joints is also The focus of this composite structure; since the connection between reinforced concrete beams and steel pipe concrete columns involves the connection between two different structures, there have always been great technical difficulties in the joint structure processing: beam reinforcement, column reinforcement, corbels, stiffening plates, etc. Staggered collection, joint reinforcement welding, concrete pouring and other construction space is narrow, making it difficult to control the anchorage quality of steel bars and the density of concrete pouring, which seriously affects the safety of the structure

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