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Steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission

A technology of corrugated steel plates and joint sections, which is applied to bridges, bridge construction, bridge parts, etc., can solve the problems of heavy construction workload, reduce the strength of concrete in the hole, and low construction efficiency, so as to improve construction efficiency, weaken the constraint effect, Reduces the effect of shear action

Pending Publication Date: 2020-03-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When PBL connectors are used in the traditional steel-concrete hybrid box girder joint, there are many round holes on the steel partition in the cell, and a steel bar needs to be inserted into each round hole to form the PBL connector. The quantity is large and the construction efficiency is low; and the diameter of the opening of the steel plate in the traditional structure is small, it is difficult for the coarse aggregate in the concrete to enter the hole, which reduces the strength of the concrete in the hole

Method used

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  • Steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission
  • Steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission
  • Steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission

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Embodiment 1

[0027] This embodiment discloses a steel-concrete hybrid beam joint section using corrugated steel plates for force transmission, including several corrugated steel partitions 1 , pressure bearing plates 2 and steel boxes 3 for the joint section.

[0028] see figure 2 , the direction of the arrow in the figure is the longitudinal bridge direction, and the plate surface of the pressure bearing plate 2 is perpendicular to the longitudinal bridge direction. see image 3 , one plate surface of the pressure bearing plate 2 is connected with several T-shaped stiffeners 4, and the other plate surface is connected with the side wall of the steel box 3 of the joint section, and the steel box 3 of the joint section is a square box arranged horizontally.

[0029] see figure 1 , the T-shaped stiffener 4 includes a flange 401 and a web 402, the plate surface of the web 402 is perpendicular to the horizontal plane, and the length direction of the web 402 is consistent with the longitudin...

Embodiment 2

[0042] This embodiment discloses a steel-concrete hybrid beam joint section using corrugated steel plates for force transmission, including several corrugated steel partitions 1 , pressure bearing plates 2 and steel boxes 3 for the joint section.

[0043] see figure 2 , the direction of the arrow in the figure is the longitudinal bridge direction, and the plate surface of the pressure bearing plate 2 is perpendicular to the longitudinal bridge direction. see image 3 , one plate surface of the pressure bearing plate 2 is connected with several T-shaped stiffeners 4, and the other plate surface is connected with the side wall of the steel box 3 of the joint section, and the steel box 3 of the joint section is a square box arranged horizontally.

[0044] see figure 1 Or 2, a number of corrugated steel partitions 1 are connected between the top plate 301 and the bottom plate 302 of the steel box 3 of the joint section, and the plurality of corrugated steel partitions 1 are arr...

Embodiment 3

[0052] The main structure of this embodiment is the same as that of Embodiment 2, further, refer to Figure 4 In (2) figure, the waveform shape of the corrugated steel separator 1 is an arc curve.

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Abstract

The invention discloses a steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission, and relates to the technical field of bridge engineering. The invention discloses a steel-concrete hybrid beam combination section adopting corrugated steel plates for force transmission. The steel-concrete hybrid beam combination section comprises a plurality of T-shaped stiffening ribs, a bearing plate, a combination section steel box and a plurality of corrugated steel partition plates. A plurality of T-shaped stiffening ribs are connected to one plate face of the bearing plate, the other plate face of the bearing plate is connected with a combination section steel box and a plurality of corrugated steel partition plates, and the corrugated steel partition plates are located in the combination section steel box. A plurality of oval through holes are formed in the corrugated steel partition plate, a plurality of perforated steel bars penetrate through theoval through holes in the corrugated steel partition plate, and the combination section steel box is filled with concrete. The oval through holes weaken the constraint effect of the steel partition plate on the concrete tenons in the holes, and the purposes that in the normal use stage, the corrugated steel partition plate is mainly used for longitudinal shearing resistance, and the oval hole PBLconnecting part and the steel partition plate are jointly stressed in the bearing capacity limit stage are achieved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a joint section of a steel-concrete hybrid beam that adopts a corrugated steel plate for force transmission. Background technique [0002] The steel-concrete hybrid girder bridge refers to a bridge structure in which the main girders made of two different materials are connected along the length direction to form a whole. Usually, in order to reduce the dead-load bending moment of the main span of long-span bridges, steel beams are used for the main span, and concrete or prestressed concrete beams are used for the side spans. Since the main span adopts steel beams, the spanning capacity is large, while the side spans or the concrete beams near the piers of the main span with large self-weight can play the role of anchorage and pressure, which can avoid negative reaction forces at each fulcrum of the side spans and improve The stiffness of the whole bridge reduces the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D2/04
CPCE01D2/04E01D19/00
Inventor 狄谨王杰张茜乔朋侯兆新李国强陈宜言何晓晖秦凤江
Owner CHONGQING UNIV
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