Anti-falling pedestrian overpass corridor

Abstract

The utility model belongs to the technical field of corridors, and provides an anti-falling pedestrian overpass corridor which comprises a floor support plate at the upper end, a bearing part is further arranged at the lower end of the floor support plate and comprises a steel beam and structural columns located at the two ends of the floor support plate, brackets are further poured on the side walls of the opposite ends of the two sets of structural columns, and the steel beam and the structural columns are connected through a steel pipe. Supports are further arranged between the two ends of the steel beam and the brackets, the supports comprise a fixed support and a sliding support, a limiting block is further arranged at the lower end of the steel beam, and when the steel beam bears the load action in the sliding direction, the limiting block can prevent the steel beam from falling off from the supports; by arranging the limiting blocks, under the load effects of earthquake, corridor equipment braking and the like, the support generates large displacement, and a corridor, an overbridge and the like can be prevented from falling off from the support through the limiting blocks.

Description

Technical Field

[0001] The utility model belongs to the technical field of corridors, and particularly relates to an anti-falling pedestrian overpass corridor. Background Art

[0002] Steel structure buildings such as steel corridors and pedestrian bridges are generally connected to the piers of concrete structures or reserved concrete corbels. In order to meet the deformation coordination between different materials of steel structure and concrete, as well as the requirements of mutual independence between structural units, the supports at both ends of the steel components are usually connected to the concrete components with embedded bolts and rubber bearings. The rubber bearings coordinate the relative displacement between the steel beam and the support through the friction between themselves and the components and shear deformation.

[0003] However, due to aging of rubber bearings, ingress of debris, or loads such as earthquakes or braking of corridor equipment, the connection structure may be damaged, causing the corridor, overpass, etc. to fall off the bearings. Utility Model Content

[0004] The utility model provides an anti-falling pedestrian overpass corridor, which solves the problems in the prior art.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A fall-proof pedestrian overpass corridor comprises a floor deck at an upper end, a bearing member is further provided at the lower end of the floor deck, the bearing member comprises a steel beam, and structural columns located at both ends of the floor deck, corbels are further cast on the side walls at opposite ends of the two groups of structural columns, supports are further provided between the two ends of the steel beam and the corbels, the supports comprise a fixed support and a sliding support, a limit block is further provided at the lower end of the steel beam, and when the steel beam is subjected to a load along a sliding direction, the limit block can prevent the steel beam from falling off the support.

[0007] Furthermore, the fixed support includes a first rubber pad, the sliding support includes a second rubber pad, and the first rubber pad and the second rubber pad are both tightly attached to the lower end of the steel beam.

[0008] Furthermore, a pad is provided at the lower end of the second rubber pad so that the second rubber pad can slide on the pad.

[0009] Furthermore, the pad is made of polytetrafluoroethylene plate.

[0010] Furthermore, a first steel plate and a second steel plate are laterally arranged on the inner sides of the first rubber pad and the second rubber pad, respectively.

[0011] Furthermore, a steel secondary beam is vertically arranged inside the steel beam to enhance the load-bearing strength of the steel beam.

[0012] Furthermore, the steel secondary beam is fixedly connected to the steel beam by high-strength bolts.

[0013] Furthermore, the gap between the limit block and the corbel is 100 mm.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. In the present invention, by setting a limit block, when the support produces a large displacement under the action of earthquake, corridor equipment braking and other loads, the limit block can prevent the corridor, overpass, etc. from falling off the support.

[0016] 2. In the present invention, by arranging a steel plate transversely in the rubber pad, the rubber pad can be effectively prevented from lateral expansion, thereby avoiding increasing the sliding stroke of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a schematic diagram of the overall structure of a fall-proof pedestrian bridge corridor of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 The utility model is a schematic diagram of the overall fracture structure of an anti-fall pedestrian bridge corridor.

[0021] In the figure, 10, floor decking; 20, steel beam; 30, fixed bearing; 301, first rubber pad; 302, first steel plate; 40, corbel; 50, structural column; 60, steel secondary beam; 70, sliding bearing; 701, pad; 702, second rubber pad; 703, second steel plate; 80, limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1 As shown, a fall-proof pedestrian bridge corridor includes a floor deck 10 at the upper end and a bearing member below, wherein the bearing member includes a steel beam 20 located at the lower end of the floor deck 10, and a steel secondary beam 60 is further arranged inside the steel beam 20 for strengthening the strength of the steel beam 20, wherein, Figure 1 As shown, the steel beam 20 is constructed first, and then the steel secondary beam 60 is fixed to the inner side of the steel beam 20 by high-strength bolts. Structural columns 50 are respectively provided at both ends of the floor deck 10, and corbels 40 are fixedly cast on the side walls of the structural columns 50. Fixed bearings 30 and sliding bearings 70 are respectively provided between the steel beam 20 and the corbels 40.

[0024] Among them, Figure 2 As shown, the sliding support 70 includes a second rubber pad 702 with a thickness of 40MM, the second rubber pad 702 is closely attached to the lower end of the steel beam 20, and a pad 701 with a thickness of 2MM is also provided at the lower end of the second rubber pad 702, the second rubber pad 702 can slide on the pad 701, wherein the pad 701 is made of a polytetrafluoroethylene plate to reduce the friction resistance between the pad 701 and the second rubber pad 702, so as to facilitate sliding;

[0025] In order to prevent the sliding support 70 from being displaced too much under the action of earthquake, corridor equipment braking and other loads, thereby causing the steel beam 20 to detach from the support, Figure 3 As shown, a limit block 80 is provided at a gap of 100 mm from the corbel 40, which, on the one hand, limits the possibility that the corridor structure may be detached from the support when the support is excessively displaced. In addition, it also ensures that the sliding support 70 can slide within a limited range at ordinary times, so as to ensure that the deformation and displacement between the steel member and the support are not restricted, thereby not affecting the appearance and ensuring that the steel structure and the support can still coordinate deformation;

[0026] In addition, if Figure 1 As shown, the fixed support 30 includes a first rubber pad 301 that is in close contact with the bottom end of the steel beam 20. Figure 1-2 As shown, a 2 mm first steel plate 302 and a second steel plate 703 are respectively embedded inside the first rubber pad 301 and the second rubber pad 702 to prevent the first rubber pad 301 and the second rubber pad 702 from lateral expansion, which can better prevent the support from large displacement on the rubber pad.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fall-proof pedestrian bridge corridor, comprising a floor deck (10) at the upper end, wherein a bearing member is further provided at the lower end of the floor deck (10), wherein the bearing member comprises a steel beam (20), and structural columns (50) located at both ends of the floor deck (10), and a corbel (40) is cast on the side walls of the opposite ends of the two groups of structural columns (50), and a support is further provided between the two ends of the steel beam (20) and the corbel (40), and the support comprises a fixed support (30) and a sliding support (70), wherein: A limit block (80) is also provided at the lower end of the steel beam (20). When the steel beam (20) is subjected to a load in a sliding direction, the limit block (80) can prevent the steel beam (20) from falling off the support.

2. The anti-fall pedestrian bridge corridor according to claim 1 is characterized in that: The fixed support (30) includes a first rubber pad (301), and the sliding support (70) includes a second rubber pad (702). The first rubber pad (301) and the second rubber pad (702) are both tightly attached to the lower end of the steel beam (20).

3. The anti-fall pedestrian bridge corridor according to claim 2 is characterized in that: A pad (701) is also provided at the lower end of the second rubber pad (702) so that the second rubber pad (702) can slide on the pad (701).

4. The anti-fall pedestrian bridge corridor according to claim 3 is characterized in that: The pad (701) is made of polytetrafluoroethylene plate.

5. The anti-fall pedestrian bridge corridor according to claim 2 is characterized in that: A first steel plate (302) and a second steel plate (703) are also laterally arranged on the inner sides of the first rubber pad (301) and the second rubber pad (702), respectively.

6. The anti-fall pedestrian bridge corridor according to claim 1, characterized in that: A steel secondary beam (60) is also vertically arranged inside the steel beam (20) to enhance the strength of the steel beam (20) in bearing loads.

7. The anti-fall pedestrian bridge corridor according to claim 6, characterized in that: The steel secondary beam (60) is fixedly connected to the steel beam (20) via high-strength bolts.

8. The anti-fall pedestrian bridge corridor according to claim 1, characterized in that: The gap between the limit block (80) and the corbel (40) is 100 mm.

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