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Structure of connection of circular steel tube type lightweight aggregate concrete beam and through reinforcing steel bar of concrete pier and construction process thereof

A technology of lightweight aggregate concrete and reinforced concrete, which is applied in bridges, bridge parts, bridge construction, etc., to achieve the effects of reducing the structure's self-weight, reliable connection, and reducing foundation loads

Inactive Publication Date: 2010-08-04
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rigid connection structure and construction technology that solves the problem of connection between circular steel pipe light aggregate concrete beams and reinforced concrete piers in view of the above-mentioned deficiencies in the prior art

Method used

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  • Structure of connection of circular steel tube type lightweight aggregate concrete beam and through reinforcing steel bar of concrete pier and construction process thereof
  • Structure of connection of circular steel tube type lightweight aggregate concrete beam and through reinforcing steel bar of concrete pier and construction process thereof

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Embodiment Construction

[0019] figure 1 It is a welded piercing reinforcement connection between circular steel pipe light aggregate concrete beams and reinforced concrete piers. Firstly, the required components are manufactured in the factory. , then pour light aggregate concrete into the steel pipe; weld the shear force transfer steel plate 2 and the bending moment transfer steel plate 4, and then weld the protruding part of the piercing steel bar 3 to the bending moment transfer steel plate 4; Moment transmission steel plate 4, and weld two steel bars 5 on the welded steel plate to strengthen the connection performance of the moment transmission plate, and then weld two rows of perforated steel ribs (the diameter of the hole is larger than the diameter of the longitudinal reinforcement of the reinforced concrete pier 6) ; When tying the steel bars, pass the longitudinal steel bars of the pier through the steel rib plate holes first, then tie the steel bars, set up the formwork, and pour concrete.

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Abstract

The invention discloses a structure of connection of a circular steel tube type lightweight aggregate concrete beam and a through reinforcing steel bar of a concrete pier and a construction process thereof. The structure comprises a circular steel tube type lightweight aggregate concrete beam, a shear transfer steel plate, a through reinforcing steel bar, a bending moment transfer steel plate, a welding reinforcing steel bar, a reinforced concrete pier and a transfer steel rib, wherein the through reinforcing steel bar penetrates through the circular steel tube of the circular steel tube type lightweight aggregate concrete beam and is then welded, and the bending moment transfer steel plate is welded on the through reinforcing steel bar to realize the overall connection of a joint and the circular steel tube type lightweight aggregate concrete beam. The invention realizes the plant manufacture of the steel joint connecting component, and adopts the through reinforcing steel bar as the connecting component so that the circular steel tube type lightweight aggregate concrete beam and the reinforced concrete pier can form a rigid joint; since lightweight aggregate concrete is cast in the circular steel tube, the invention reduces the dead weight of the superstructure and the foundation load; and the transfer path of the rigid joint is definite, the bearing capacity can meet the design requirements, and the anti-seismic performance is good.

Description

technical field [0001] The invention relates to an integral connection structure between a circular steel pipe light aggregate concrete beam and a reinforced concrete pier, in particular a structure using a through-core steel bar connection, and belongs to the technical field of pier-beam node connection in bridge engineering. Background technique [0002] Steel tube light aggregate concrete is a new type of steel tube concrete structure formed by filling light aggregate concrete in steel tubes. Steel tube lightweight aggregate concrete has the advantages of high strength, good ductility, and light weight. When used in the bridge superstructure, it will greatly reduce the weight and foundation load, which is in line with the development requirements of modern bridge structures. [0003] The current research report on the connection of circular steel pipe concrete joints is mainly aimed at the research of beam-column joints in construction engineering. Composite structure br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D21/00
Inventor 吉伯海董亚东傅中秋莫海峰
Owner HOHAI UNIV
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