Fabricated steel-profiled steel sheet concrete combined board small box girder

A technology of profiled steel plate and concrete, applied in bridges, buildings, etc., can solve problems such as long construction time, achieve the effects of shortening construction time, ensuring production quality, improving effective prestress and resisting shear buckling

Inactive Publication Date: 2017-10-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of long construction time of the existing steel-concrete composite box girder bridge, and provide a small box girder with assembled steel-profiled steel plate concrete composite slab

Method used

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  • Fabricated steel-profiled steel sheet concrete combined board small box girder
  • Fabricated steel-profiled steel sheet concrete combined board small box girder
  • Fabricated steel-profiled steel sheet concrete combined board small box girder

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Experimental program
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Effect test

specific Embodiment approach 1

[0015] Specific implementation mode 1: The small box girder of the assembled steel-profiled steel plate concrete composite slab in this embodiment includes a steel box and a profiled steel plate concrete composite bridge deck, and the steel box is composed of a steel bottom plate 5 and two corrugated steel webs 4 , two corrugated steel webs 4 are welded on the plate surface of the steel bottom plate 5 to form a rectangular box structure, and an upper steel support 3 is arranged on the upper edge end surface of each corrugated steel web 4, and the upper steel support 3 and the corrugated The steel webs 4 are perpendicular to each other, and a profiled steel plate concrete composite bridge deck is arranged on the two upper steel brackets 3, and the profiled steel plate concrete composite bridge deck is prefabricated by pouring concrete on the profiled steel plate 2 with steel mesh , the reinforcement mesh is welded by transverse steel bars 7 and longitudinal steel bars 9 at the i...

specific Embodiment approach 2

[0019] Embodiment 2: This embodiment differs from Embodiment 1 in that the corrugated web 4 has a uniform or non-uniform periodically repeated waveform, and the waveform section is trapezoidal or sinusoidal.

specific Embodiment approach 3

[0020] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the section of the profiled steel plate 2 in the profiled steel plate concrete composite bridge deck is a continuous trapezoid.

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PUM

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Abstract

The invention discloses a fabricated steel-profiled steel sheet concrete combined board small box girder, and belongs to the field of civil engineering. The invention solves the problem of long construction time of the field pouring of the existing steel-concrete combined box girder. The small box girder comprises a steel box and profiled steel sheet concrete combined bridge panels; two rectangular box structures formed by corrugated steel web plates are welded on the surface of the steel bottom plate; upper steel braces are arranged on the upper edge end faces of the corrugated steel web plates, and the profiled steel sheet concrete combined bridge panels are arranged on two upper steel braces; the profiled steel sheet concrete combined bridge panel is formed by pouring and prefabricating concrete on the profiled steel plate with a reinforcing mesh; multiple reserve holes are arranged on the concrete board, and stud groups are welded in the reserve holes; concrete is poured in the reserve holes. Through the prefabrication and overall assembly of components, the small box girder can meet the demand of bridge construction of a modernized city, thus the construction influence on surrounding environment is reduced, the fast construction with few people is realized.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a small box girder with assembled steel-profile steel plate concrete composite slab. Background technique [0002] Steel-concrete composite box girder bridge is a type of composite structure bridge, which has a very wide application prospect in urban bridge construction. At present, most of the bridge decks are ordinary concrete slabs, and most of the construction methods are pouring on site. The workload of pouring on site for the concrete floor is heavy. The traditional bridge construction method requires a large number of brackets and formwork to be erected on site, as well as binding steel bars, which requires a lot of labor, long construction time, high risk and low efficiency; the site is noisy and has a great impact on the surrounding environment and road traffic. With the rapid development of my country's economy, the society's requirements for civilized cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04
CPCE01D2/04
Inventor 刘昌永孙大伟王玉银
Owner HARBIN INST OF TECH
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