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Tooth opening type connecting structure of zigzag-form steel web and concrete slab

A technology of concrete slabs and connecting structures, which is applied in bridge materials, bridges, buildings, etc., can solve the problems of difficult penetration of steel bars, etc., to increase the tensile bearing capacity and stiffness, improve convenience, and improve shear bearing capacity Effect

Inactive Publication Date: 2021-09-17
GUANGXI BEITOU HIGHWAY CONSTR & INVESTMENT GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a splined connection structure between the folded steel web and the concrete slab to solve the construction problem that the existing perforated plate connection structure is difficult to penetrate through the steel bar from the side hole, while ensuring the bearing capacity and deformation At the same time, it improves the convenience of the construction of the combined structure of the folded steel web and the concrete slab

Method used

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  • Tooth opening type connecting structure of zigzag-form steel web and concrete slab
  • Tooth opening type connecting structure of zigzag-form steel web and concrete slab
  • Tooth opening type connecting structure of zigzag-form steel web and concrete slab

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Embodiment 1

[0030] Such as Figure 1 to Figure 3 As shown: this embodiment provides a tooth mouth connection structure 100 between a folded steel web and a concrete slab 3, including a folded steel web 1, a flange steel plate 2, a concrete slab 3, a plurality of perforated steel bars 7 and Two perforated steel plates4.

[0031] Among them, the bottom surface of the flange steel plate 2 is welded to the top of the folded steel web 1, and the folded steel web 1 is perpendicular to the bottom surface of the flange steel plate 2; the bottom of the perforated steel plate 4 is welded to the top surface of the flange steel plate 2 , the perforated steel plate 4 is perpendicular to the top surface of the flange steel plate 2, the folded steel web 1 and the perforated steel plate 4 are arranged longitudinally; gaps 9 distributed at intervals, and the opening of the gap 9 is located at the top edge of the perforated steel plate 4, the perforated steel bar 7 is inserted in the notch 9, and the mini...

Embodiment 2

[0035] Such as Figure 4 to Figure 7 As shown: this embodiment provides a spline connection structure 100 between a folded steel web and a concrete slab 3, and the spline connection structure 100 between a folded steel web and a concrete slab 3 in this embodiment is the same as that in Embodiment 1 The provided folded steel web and the tooth mouth connection structure 100 of the concrete slab 3 are basically the same in structure, the difference is that in the tooth mouth connection structure 100 of the folded steel web and the concrete slab 3 in this embodiment The gap 9 on the perforated steel plate 4 is in the shape of an inverted "Ω". The advantage of this arrangement is that when the perforated steel plate 4 is cut and made, it can be cut along the steel plate cutting line 8 on a whole steel plate. Two perforated steel plates 4 can be obtained, which improves the manufacturing efficiency and steel plate utilization rate. In the same way, the shape of the gap 9 on the per...

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Abstract

The invention discloses a tooth opening type connecting structure of a zigzag-form steel web and a concrete slab. The tooth opening type connecting structure comprises the zigzag-form steel web, a flange steel plate, the concrete slab, a perforated steel plate and a perforated steel bar. The bottom face of the flange steel plate is fixedly connected with the top end of the zigzag-form steel web, and the zigzag-form steel web is perpendicular to the bottom face of the flange steel plate. The bottom end of the perforated steel plate is fixedly connected with the top surface of the flange steel plate, the perforated steel plate is perpendicular to the top surface of the flange steel plate, and the zigzag-form steel web and the perforated steel plate are arranged in the same direction; a plurality of notches distributed at intervals in the length direction of the perforated steel plate are formed in the perforated steel plate, openings of the notches are located in the edge of the top end of the perforated steel plate, perforated steel bars are inserted into the notches, and the minimum width of the notches is larger than the diameter of the perforated steel bars. The flange steel plate supports the concrete plate, the top face of the flange steel plate is attached to the bottom face of the concrete plate, and the perforated steel plate and the perforated steel bar are both poured into the concrete plate. The construction convenience of the combination structure of the zigzag-form steel web and the concrete plate is improved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a cog-shaped connection structure between a folded steel web and a concrete slab. Background technique [0002] As a new type of bridge structure, composite folded web bridge adopts folded steel web instead of traditional concrete web, the self-weight of the box girder structure is greatly reduced, and at the same time, the constraint between the roof and the bottom plate is released, the secondary internal force is reduced, and the prestress is increased. The application efficiency completely solves the problem of web cracking, and has been widely used in China in recent years. [0003] For composite folded-web bridges, the joint between the folded steel web and the concrete slab is the most critical structure of this type of bridge. It should ensure that the longitudinal horizontal shear force can be effectively transmitted, and at the same time ensure that all parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04
CPCE01D2/04E01D2101/268
Inventor 张云刘玉擎周晓蓉罗婷倚叶源蔡昊初杨明唐亚森邓宗萍余秋琴韦黛笠赵吉卫
Owner GUANGXI BEITOU HIGHWAY CONSTR & INVESTMENT GRP CO LTD
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