Easily detachable expansion joint structure of pedestrian steel bridge

Abstract

The utility model discloses an easy-to-disassemble expansion joint structure of a pedestrian steel bridge and relates to pedestrian steel bridges. The expansion joint structure is arranged on a steel structure main beam of the steel bridge and located between a bridge abutment back wall and a bridge deck pavement layer, and is characterized by comprising a cover plate, a bottom plate, supporting plates and a rubber plate, and the two supporting plates are vertically and fixedly connected to the steel structure main beam and are arranged close to the bridge deck pavement layer; the bottom plate is horizontally and fixedly connected to the two supporting plates. One end of the rubber plate is horizontal, the other end of the rubber plate is U-shaped, the horizontal section of the rubber plate covers the top of the abutment back wall, the U-shaped end is adhered to the outer side of the supporting plate, the cover plate covers the horizontal section of the rubber plate and the bottom plate, and the cover plate is fixedly connected with the bottom plate through bolts and nuts. Components and accessories adopted by the utility model are all conventional materials, so that the economical efficiency is good; the bolts are directly screwed out in the later period, the expansion joint related components are maintained or replaced, and maintenance and repair are convenient; the cover plate can effectively prevent rain and dust and can well cover the rubber plate, and aging of rubber is slowed down.

Description

Technical Field

[0001] The utility model relates to a pedestrian steel bridge, in particular to an easily disassembled expansion joint structure of a pedestrian steel bridge which is convenient for maintenance, repair or replacement. Background Art

[0002] Traditional expansion joints of pedestrian steel bridges have many embedded parts, high construction process requirements, complex construction procedures, and most of them are complete sets of products that need to be specially purchased, which is not economical. In addition, traditional expansion joints are prone to aging and cracking of rubber strips, accumulation of stones and other debris in expansion joints, cracking of concrete in the anchoring area of ​​expansion joints, deformation of expansion joint steel and other defects, so expansion joints need to be repaired frequently. The maintenance of traditional expansion joints requires partial excavation of the bridge deck and removal of the bridge deck pavement, which not only increases the cost of maintenance and repair, but also takes a long time to complete, which has a certain impact on the passage of bridge structures. Summary of the invention

[0003] The utility model aims to solve the problem that the existing expansion joints of pedestrian steel bridges have many embedded parts, high maintenance costs, long repair and replacement periods, and affect traffic, and provide an easily disassembled expansion joint structure of a pedestrian steel bridge that is convenient for maintenance, repair or replacement.

[0004] The utility model discloses an easily disassembled expansion joint structure for a pedestrian steel bridge, which is arranged on the steel structure main beam of the steel bridge and is located between the abutment back wall and the bridge deck pavement layer. The utility model is characterized in that the expansion joint structure comprises a cover plate, a bottom plate, a support plate and a rubber plate, wherein the two support plates are vertically fixed on the steel structure main beam and are arranged close to the bridge deck pavement layer; the bottom plate is horizontally fixed on the two support plates; one end of the rubber plate is horizontal and the other end is U-shaped; the horizontal section of the rubber plate covers the top of the abutment back wall, and the U-shaped end is pasted on the outside of the support plate; the cover plate covers the horizontal section of the rubber plate and the bottom plate, and the cover plate is connected and fixed to the bottom plate by bolts and nuts.

[0005] The bottom plate is provided with a plurality of screw holes at equal intervals, and the cover plate is provided with a plurality of screw holes at equal intervals. The positions of the screw holes on the bottom plate match the positions of the screw holes on the cover plate. The cover plate is connected and fixed to the bottom plate after the bolts pass through the screw holes.

[0006] The bolts are hexagon socket bolts, the nuts are hexagonal nuts with shoulders, and a gasket is provided between the nuts and the back of the base plate. The bolts pass through the screw holes from top to bottom, the gaskets are sleeved on the bolts on the back of the base plate, and the nuts are screwed on the bolts below the gaskets. The cover plate and the base plate are connected and fixed by the cooperation of the bolts and the nuts.

[0007] A reserved groove is arranged on the top of the abutment back wall, and the horizontal section of the rubber plate is embedded in the reserved groove; the horizontal section of the rubber plate and the reserved groove, and the U-shaped section of the rubber plate and the supporting plate are all fixed by epoxy resin glue.

[0008] The utility model discloses a pedestrian steel bridge with an easily disassembled expansion joint structure, which has the advantages of simple structure, scientific design and convenient use. The components adopted are all made of conventional materials and do not need to be pre-buried, so the construction is simple, convenient and efficient, and it can be processed on site, which is economical. The bolts can be directly screwed out at a later stage, and the expansion joint related components can be maintained, repaired or replaced. The maintenance and maintenance are convenient, and the maintenance and replacement of components can be completed quickly. The cover plate can effectively prevent rain and dust, and can also prevent stones or debris from entering the expansion joint to affect the normal expansion and contraction of the expansion joint. It can also well cover the rubber plate to slow down the aging of the rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model.

[0010] Figure 2 It is the plan view of the expansion joint.

[0011] Figure 3 Schematic diagram of the cover structure.

[0012] Figure 4 Schematic diagram of the base plate structure.

[0013] Among them: steel structure main beam 1, abutment back wall 2, bridge deck pavement layer 3, cover plate 4, bottom plate 5, support plate 6, rubber plate 7, bolts 8, nuts 9, screw holes 10. DETAILED DESCRIPTION

[0014] Embodiment 1: A readily detachable expansion joint structure for a pedestrian steel bridge is provided on the steel structure main beam of the steel bridge and is located between the abutment back wall and the bridge deck pavement layer. The expansion joint structure comprises a cover plate, a bottom plate, a support plate and a rubber plate. Two support plates are vertically fixed to the steel structure main beam and are arranged close to the bridge deck pavement layer; the bottom plate is horizontally fixed to the two support plates; one end of the rubber plate is horizontal and the other end is U-shaped, the horizontal section of the rubber plate covers the top of the abutment back wall, and the U-shaped end is adhered to the outside of the support plate, the cover plate covers the horizontal section of the rubber plate and the bottom plate, and the cover plate is connected and fixed to the bottom plate by bolts and nuts.

[0015] Several screw holes are set at equal intervals on the bottom plate, and several screw holes are set at equal intervals on the cover plate. The positions of the screw holes on the bottom plate match the positions of the screw holes on the cover plate. The cover plate is connected and fixed to the bottom plate after the bolts pass through the screw holes. The bolts are hexagon socket bolts, and the nuts are hexagonal nuts with shoulders. There are also gaskets between the nuts and the back of the bottom plate. The bolts pass through the screw holes from top to bottom, and the gaskets are put on the bolts on the back of the bottom plate. The nuts are screwed on the bolts under the gaskets, and the cover plate is connected and fixed to the bottom plate through the combination of the bolts and nuts. A reserved groove is set on the top of the abutment back wall, and the horizontal section of the rubber sheet is embedded in the reserved groove; the horizontal section of the rubber sheet and the reserved groove, and the U-shaped section of the rubber sheet and the support plate are all fixed by epoxy resin glue.

Claims

1. An easily detachable expansion joint structure of a pedestrian steel bridge is arranged on the steel structure main beam of the steel bridge and is located between the abutment back wall and the bridge deck pavement layer, characterized in that The expansion joint structure includes a cover plate, a bottom plate, a support plate and a rubber plate. The two support plates are vertically fixed to the main beam of the steel structure and are arranged close to the bridge deck pavement layer; the bottom plate is horizontally fixed to the two support plates; one end of the rubber plate is horizontal and the other end is U-shaped. The horizontal section of the rubber plate covers the top of the abutment back wall, and the U-shaped end is pasted on the outside of the support plate. The cover plate covers the horizontal section of the rubber plate and the bottom plate, and the cover plate is connected and fixed to the bottom plate by bolts and nuts.

2. The easily disassembled expansion joint structure of a pedestrian steel bridge according to claim 1, characterized in that The bottom plate is provided with a plurality of screw holes at equal intervals, and the cover plate is provided with a plurality of screw holes at equal intervals. The positions of the screw holes on the bottom plate match the positions of the screw holes on the cover plate. The cover plate is connected and fixed to the bottom plate after the bolts pass through the screw holes.

3. The easily disassembled expansion joint structure of a pedestrian steel bridge according to claim 1, characterized in that The bolts are hexagon socket bolts, the nuts are hexagonal nuts with shoulders, and a gasket is provided between the nuts and the back of the base plate. The bolts pass through the screw holes from top to bottom, the gaskets are sleeved on the bolts on the back of the base plate, and the nuts are screwed on the bolts below the gaskets. The cover plate and the base plate are connected and fixed by the cooperation of the bolts and the nuts.

4. The easily disassembled expansion joint structure of a pedestrian steel bridge according to claim 1, characterized in that A reserved groove is arranged on the top of the abutment back wall, and the horizontal section of the rubber plate is embedded in the reserved groove; the horizontal section of the rubber plate and the reserved groove, and the U-shaped section of the rubber plate and the supporting plate are all fixed by epoxy resin glue.

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