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Design and construction for connection node between steel tube-reinforced concrete composite column and reinforced concrete beam

A technology of reinforced concrete beams and concrete-filled steel tubes, which is applied in the directions of buildings and building structures to achieve the effect of saving construction time, convenient construction and simple joint form.

Inactive Publication Date: 2014-09-10
刘小斌
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a joint of concrete-filled steel pipe composite columns and reinforced concrete beams and its construction method, to solve the technical problems of the connection between steel pipe concrete composite columns and reinforced concrete beams and the seismic requirements of the core area of ​​the joints

Method used

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  • Design and construction for connection node between steel tube-reinforced concrete composite column and reinforced concrete beam
  • Design and construction for connection node between steel tube-reinforced concrete composite column and reinforced concrete beam
  • Design and construction for connection node between steel tube-reinforced concrete composite column and reinforced concrete beam

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Embodiment Construction

[0023] Examples see Figure 1 to Figure 3 As shown, a joint of concrete-filled steel tube composite column and reinforced concrete beam, the concrete-filled steel tube composite column (1) includes longitudinal reinforcement (1.1), inner steel pipe (1.2), peripheral concrete (1.3), stirrup (1.4 ), concrete (1.5) inside the steel pipe, the reinforced concrete beam (2) at least includes the main reinforcement (2.1), the stirrup (2.2) and the concrete (2.3) with threaded sleeves, and the connecting piece (3) includes at least bolt holes connecting plate (3.1), bolt holes (3.2), and nuts (3.3), the connecting plate with bolt holes is welded on the inner steel pipe (1.2), the threaded main reinforcement of the reinforced concrete beam (2) Pass through the bolt holes (3.2) of the connecting plate (2) with bolt holes and screw on the nuts (3.3).

[0024] For the nodes of the concrete-filled steel tube composite column and the reinforced concrete beam, the inner steel tubes can be ro...

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Abstract

The invention discloses a design and construction method for a connection node between a steel tube-reinforced concrete composite column and a reinforced concrete beam. The node is welded onto an inner steel tube by a connecting plate with a bolt hole, a main reinforcement processing thread bushing of the reinforced concrete beam is inserted into the bolt hole of the welded connecting plate with the bolt hole after being bent, and finally, a nut is screwed on. The node is simple in form, so that a longitudinal bar of the beam can be prevented from passing the steel tube; and meanwhile, the composite column and the reinforced concrete beam can be closely bound, so that the requirement for earthquake fortification of a 'strong column and weak beam' and a 'strong node and weak component' can be realized. The connection method can be widely used in the connection between the steel tube-reinforced concrete composite column and the reinforced concrete beam.

Description

technical field [0001] The invention relates to a connection node between a steel pipe concrete composite column and a reinforced concrete beam Background technique [0002] Concrete-filled steel tube composite columns have excellent mechanical properties and are widely used in construction projects. The joint connection method provided in my country's "Technical Regulations for Concrete-filled Steel Tube Composite Columns" and currently used widely in my country is the connection method in which the main reinforcement of the beam passes through the steel pipe. The construction of the connection method in which the main reinforcement of the beam passes through the steel pipe is more complicated. The hole is more complex, the mechanical performance of the steel pipe is weakened after the hole is opened, and the joint connection method of the column steel pipe with the ring beam is too large and unsightly, the self-weight increases, and the anchorage strength of the beam main r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/41
Inventor 刘小斌
Owner 刘小斌
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