Overhead contact system mast foundation of railway steel and concrete composite beam and steel and concrete composite bridge

A combination of steel-concrete beams and steel-concrete combination technology, applied in infrastructure engineering, bridges, bridge construction, etc., can solve the problems of complex and changeable bridge structure stress, inconvenient column distribution, heavy column weight, etc., to reduce design Strength and construction difficulty, reduce design difficulty and construction difficulty, and increase construction cost

Pending Publication Date: 2018-06-29
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catenary foundation is set on the bridge pier. Although the structure of the foundation is simple, the position must be near the bridge pier. Due to the complex and changeable force of the bridge structure, it is not convenient for the rational distribution of the columns; Catenary foundation, although there is no limit to the setting position, but due to the heavy weight of the columns, the steel bars on the bridge deck must be strengthened. The thin bridge deck leads to too dense steel bars, which makes the construction difficult and requires high construction costs. High, low construction efficiency

Method used

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  • Overhead contact system mast foundation of railway steel and concrete composite beam and steel and concrete composite bridge
  • Overhead contact system mast foundation of railway steel and concrete composite beam and steel and concrete composite bridge
  • Overhead contact system mast foundation of railway steel and concrete composite beam and steel and concrete composite bridge

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Effect test

Embodiment 1

[0031] Such as Figure 1-3 As shown, the catenary column foundation of a railway steel-concrete composite beam according to the present invention includes a bridge flange, and the bridge flange is connected to one side of the main beam 6, and the bridge flange includes a reinforced concrete layer 1 and Supporting parts, the reinforced concrete layer 1 and the bridge deck concrete are integrally molded and poured, one supporting part is provided under each column 2, and each supporting part includes a top plate 41, a web 42 and a bottom plate 43, Two webs 42 are arranged below each column 2, and a bottom plate 43 is connected to the bottom of each web 42, and all webs 42 are vertically connected to the top plate 41, each The bottom plate 43 is perpendicular to the corresponding web 42, all the top plates 41, webs 42 and bottom plates 43 are steel structural members, all the top plates 41 are welded to the main beam 6, all the webs 42 and The bottom plate 43 is spliced ​​with t...

Embodiment 2

[0033] Such as Figure 4 As shown, a steel-concrete combined bridge according to the present invention includes a superstructure, a substructure, a bearing system and ancillary facilities. The superstructure includes several main girders 6, and the two sides of each main girder 6 Respectively connected with catenary column foundations as described in embodiment 1, the main girder 6 is a steel plate girder or a steel box girder or a steel truss girder, such as a steel box girder, the top plate 41 is welded and connected to the steel box girder top plate, all the The web 42 and the bottom plate 43 are spliced ​​with the side of the steel box girder through high-strength bolts and splicing plates. A stiffening plate 7 is provided at the corresponding position connecting each of the supporting components on the main girder 6. The reinforced concrete layer 1 and the bridge deck concrete on the main girder 6 are integrally poured and formed, and the substructure includes abutment co...

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Abstract

The invention discloses an overhead contact system mast foundation of a railway steel and concrete composite beam. The overhead contact system mast foundation comprises a bridge flange; the bridge flange is connected with main beams; the bridge flange comprises a reinforced concrete layer and supporting components; a mast is arranged above each supporting component; each supporting component is connected with the bottom part of the reinforced concrete layer; and the masts are connected with the bridge flange through a pre-embedded steel slab. The masts can be supported stably by adopting the structure of the overhead contact system mast foundation, thereby being conducive to guaranteeing perpendicularity and stability of the masts, and avoiding mast collapse and settlement; reinforcing steel bars in concrete of the bridge floor flange do not need to be added, so that design strength and construction difficulty are effectively lowered, forming quality is increased, construction cost isprevented from being increased greatly, installation positions of the masts are convenient to arrange, operating quality of an overhead contact system is increased, and the safety of railway electrictransmission lines is enhanced.

Description

technical field [0001] The invention relates to the technical field of railway steel-concrete combined beams, in particular to a catenary column foundation of railway steel-concrete combined beams and a steel-concrete combined bridge. Background technique [0002] The steel-concrete composite beam is a new type of structure formed by combining two materials with different properties, steel and concrete. It is a reasonable combination of steel and concrete, which gives full play to the advantages of high tensile strength of steel, good plasticity and good compressive performance of concrete, and can make up for each other's shortcomings. Therefore, in modern bridge structures, steel-concrete combined beams are more It has become one of the main directions of bridge development. In recent years, electrified railways have become the mainstream type of modern railways, and are widely used in the construction of high-speed railways and urban rail transit. Many non-electrified ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E01D19/00
CPCE01D19/00E02D27/42
Inventor 余浪易大伟黄毅许志艳廖文键许敏陈克坚何庭国游励晖田壮
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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