Joint tenon-mortise structure of square steel tube structures and steel reinforced concrete beams and method

Abstract

The invention discloses a joint tenon-mortise structure of square steel tube structures and steel reinforced concrete beams and a method. The two steel reinforced concrete beams are connected in an upper-and-lower vertical butting mode through a butting groove to form a steel reinforced concrete beam connecting body. Two square steel tube structures are separately connected to the steel reinforcedconcrete beam connecting body in an upper-and-lower butting mode, and square steel grooves of the upper and lower steel tubes and profile steel grooves of the upper and lower sides of profile steel are correspondingly arranged in a butting mode to form the joint tenon-mortise structure. Through ingenious lapping joint of the joint tenon-mortise structure, the connection between the steel reinforced concrete structural beams and square steel tube concrete columns is realized, the bending resistance and torsional strength of a joint connecting member are improved, and the joint connecting member is prevented from bending and torsional deformation. Meanwhile, rectangular mold cavities of the upper and lower square steel tube structures communicate with each other to form an integrated rectangular mold cavity, concrete is poured into the integrated rectangular mold cavity to form a square steel tube confined concrete column which is used for wrapping the joint tenon-mortise structure in the concrete, a concrete column joint with high bending resistance and high torsional strength is formed, and the stability of the joint tenon-mortise structure is ensured.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a joint mortise and tenon structure of a square steel pipe structure and a steel concrete beam and a method thereof. Background technique [0002] As a new building structure, the steel tube concrete structure has the advantages of high strength, good seismic performance and convenient construction, and is widely used in engineering practice. Square steel pipes have a high ability to restrain the internal concrete and have a wide range of applications. However, it is difficult to connect square steel pipes to steel-concrete beams. The design of the existing connection nodes is relatively complicated, and there are certain difficulties in on-site construction. For example, in the design of the ring beam joint, the steel pipe column floor joint is provided with a stiffened ring plate, which collides with the installation position of the stirrup and waist bar of the...

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Problems solved by technology

The square steel pipe has a high restraining ability to its internal concrete, and has a wide range of applications. However, it is difficult to connect the square steel pipe to the steel concrete beam. The existing connection node design is relatively complicated, and there are certain difficulties in on-site construction.

For example, in the design of the ring beam joint, the steel pipe column floor joint is equipped with a stiffening ring plate, which collides with the installation position of the joint stirrup and waist reinforcement, and the installation and construction of the steel bar cannot be carried out.

If the stirrup is welded to the steel pipe column and the reinforced ring plate floor, the welding quality and the stress of the steel pipe column after welding will change, resulting in welding stress in all directions, the deformation in all directions cannot be effectively estimated, and the integrity of the joint itself is poor , the construction quality is difficult to guarantee

At the same time, one of the main challenges facing the current urban building construction is to ensure the overall safety and durability of the building structure, but also to reduce the time spent in the construction process as much as possible, reduce the construction cost and the noise and dust generated by the construction. Wait

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