Prefabricated concrete-filled steel tube overlapped pier

A technology for CFST and CFST columns, applied in bridges, bridge construction, bridge parts, etc., to facilitate positioning and installation, improve transfer ability, and eliminate the need for welding

Inactive Publication Date: 2017-01-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the factory construction problem of concrete filled steel pipe composite piers in the bridge structure, the present invention provides a prefabricated assembled steel pipe concrete composite bridge pier, which can realize the prefabricated construction of steel pipe concrete composite bridge piers

Method used

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  • Prefabricated concrete-filled steel tube overlapped pier
  • Prefabricated concrete-filled steel tube overlapped pier
  • Prefabricated concrete-filled steel tube overlapped pier

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] As shown in the accompanying drawings, the present invention is a prefabricated steel pipe concrete composite bridge pier, which is connected by prefabricated steel pipe concrete columns, prefabricated reinforced concrete casings, steel bar connectors, steel pipe connectors, short steel bars in steel pipe connectors, and steel bars. It is composed of short steel bars and concrete post-cast strips in the parts. Its assembly procedure is as follows:

[0022] Factory prefabricated:

[0023] a. Prefabricate the basic components of the pier in the factory: prefabricated steel tube concrete column 1, prefabricated reinforced concrete casing 2, steel bar connector 3, steel tube connector 4, short steel bars in steel tube connectors 6, short steel bar connectors Rebar 7.

[0024] b. The steel pipe connector 4 is welded to both ends of the steel pipe in the ...

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Abstract

The invention relates to a prefabricated concrete-filled steel tube overlapped pier and belongs to the technical field of bridge engineering. The prefabricated concrete-filled steel tube overlapped pier comprises a prefabricated concrete-filled steel tube column, a prefabricated concrete-filled steel tube sleeve, rebar connecting parts, steel tube connecting parts, a concrete post-cast strip, short rebars in the steel tube connecting parts, and short rebars in the rebar connecting parts. The prefabricated concrete-filled steel tube sleeve is installed outside the prefabricated concrete-filled steel tube column. The prefabricated concrete-filled steel tube column bears main constant loads of the upper structure after being connected. Self-compaction micro-expansion concrete is poured into the concrete post-cast strip. The prefabricated concrete-filled steel tube overlapped pier can be used for steel-concrete composite structure bridge systems of urban viaducts, expressway viaducts and high-speed railway viaducts, has the advantages of being high in bearing capacity and excellent in anticorrosion capacity, can improve the capacity of resisting rare occurrence earthquakes by a bridge and durability, is high in construction speed and low in influence on traffic, and has wide engineering application prospects.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to the field of combined structure bridge engineering. Background technique [0002] Concrete-filled steel tube composite column is a new type of pier structure developed on the basis of traditional concrete-filled steel tube columns. Due to its strong axial bearing capacity, it is easy to realize the large eccentric compression failure form with ductility, and the shear capacity It has many advantages such as high strength, strong energy dissipation capacity, superior fire resistance, and convenient construction, and has been applied in high-rise buildings and super high-rise building structures. In the existing literature, it has not been seen that the structural form of concrete filled steel pipe composite columns is applied to bridge structures. Bridge piers effectively speed up the construction, reduce the amount of wet work and have superior mechanical performance. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02
CPCE01D19/02
Inventor 王宇航李硕聂鑫皮正波
Owner CHONGQING UNIV
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