Unlock instant, AI-driven research and patent intelligence for your innovation.

Steel beam structural member for maintenance of hollow slab bridge

A technology of hollow slab beams and hollow slabs, which is applied in bridge maintenance, bridge parts, bridges, etc., can solve the problems of affecting traffic and long maintenance time, and achieve the effects of improving bonding performance, convenient production and construction, and convenient construction

Active Publication Date: 2022-03-29
ZHENGZHOU COMM PLANNING SURVEY & DESIGN INST
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a steel beam structure for maintenance of hollow slab bridges, to solve the problem of replacing individual damaged hollow slab beams in the prior art. Manufacturers customized hollow slab girders, resulting in long maintenance time and technical problems affecting traffic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steel beam structural member for maintenance of hollow slab bridge
  • Steel beam structural member for maintenance of hollow slab bridge
  • Steel beam structural member for maintenance of hollow slab bridge

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0045] like Figure 1 to Figure 6 As shown, the steel beam structure in this embodiment mainly includes the left web 1, the right web 7, the transverse connecting plate 6, the transverse diaphragm 4, the left bottom plate 3 and the right bottom plate 8, the transverse connecting plate 6 and the transverse diaphragm 4 is located between the two webs as an intermediate connecting member, and is welded to the inside of the two webs, the left bottom plate 3 is welded to the bottom of the left web 1, the right bottom plate 8 is welded to the bottom of the right web 7, and the two bottom plates It is also welded with the middle diaphragm 4 to form a box girder structure.

[0046] Here, the left web 1 and the right web 7 are arranged at relative intervals in the left and right directions. When the steel beam structure is placed at the installation position of the hollow plate beam, the corresponding side web will be spaced apart from the hollow plate beam on the corresponding side. ...

Embodiment 2

[0075] The main difference from Embodiment 1 is that in Embodiment 1, the left bottom plate and the right bottom plate are fixedly assembled with the left pocket bottom plate and the right pocket bottom plate correspondingly, the two bottom plates are arranged separately, and the two pocket bottom plates are arranged separately, which not only saves cost , It will not affect the later internal maintenance and overhaul. In this embodiment, the bottom plate and the bottom connecting plate are integral structures. To ensure normal maintenance and overhaul, larger openings can be arranged on the bottom plate and the bottom connecting plate, which will increase the cost.

Embodiment 3

[0077] The main difference between it and Embodiment 1 is that in Embodiment 1, the bottom of the steel beam structure protrudes downwards, and the outer connection part of the bottom connecting plate is displaced outward, so that the dislocation steps on the bottom connecting plate It can form a receiving groove with the lower side of the hollow plate beam, so as to facilitate grouting to form a hook structure and improve the bonding performance. On the basis of ensuring the sealing concrete and grouting connection strength, in this embodiment, the bottom of the steel beam structure is basically flush with the bottom of the hollow slab beam, and the bottom connecting plate is also a flat structure, eliminating the dislocation steps.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a steel beam structural member for hollow slab bridge maintenance, which comprises a left web and a right web, the two webs are fixedly connected through a transverse connecting plate and a lower connecting piece, a steel bar connecting structure is arranged at the upper parts of the two webs and is used for connecting steel bars of a middle cast-in-place pavement layer, and a bottom-holding connecting structure is arranged at the bottom of the left web and / or the right web and is used for connecting the steel bars of the middle cast-in-place pavement layer. And the bottom support is used for fixedly connecting the bottom support connecting plate so as to block concrete on the corresponding side. When in use, the steel beam structural member is put into a to-be-replaced position, and grouting is performed in the interval seam formed by the steel beam structural member and the hollow plate beam on the corresponding side to form the hinge seam, so that the steel beam structure and the hollow plate beam are fixedly connected together. The steel beam structural part is adopted to replace the hollow plate beam, the hollow plate beam does not need to be customized from a manufacturer, the concrete curing time for prefabricating the hollow plate beam is omitted, the maintenance period is effectively shortened, the influence on traffic is reduced, construction is convenient, and rapid replacement and maintenance are facilitated.

Description

technical field [0001] The invention relates to a steel girder structural part for maintenance of hollow slab bridges. Background technique [0002] Hollow slabs are mostly used for small and medium-span bridges. Existing hollow slab bridges adopt prefabricated assembly methods, such as the hollow slab bridge structure disclosed in the Chinese utility model patent with the authorized announcement number CN207633187U, including multiple prefabricated hollow slab girders arranged in sequence. Hollow slab girders are arranged sequentially along the span direction of the bridge, and hinge joints are set between adjacent hollow slab girders. The hinge joints include hinge joint frames and filled concrete, and, in order to improve structural performance, horizontal and vertical reinforcement strips are also provided correspondingly , connect the steel bars with the hinged frame and other structures, and then pave the bridge deck. The construction is convenient, the economy is good...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01D19/12
CPCE01D22/00E01D19/125
Inventor 张建勋惠涛姚玲玲韩功学王健李红英祁信丽曹伟杨柄楠谢芳芳徐煊紫周德洋张倩蒲丹丹
Owner ZHENGZHOU COMM PLANNING SURVEY & DESIGN INST