Foot bridge concrete pier column and steel platform consolidation structure

Abstract

The utility model relates to a consolidation structure of a foot bridge concrete pier column and a steel platform. The consolidation structure comprises the steel platform, the concrete pier column and a pier column sleeve. The steel platform comprises a platform top plate, a platform bottom plate and a plurality of platform partition plates, the platform top plate and the platform bottom plate are arranged in parallel, the platform partition plates are arranged between the platform top plate and the platform bottom plate in a # shape, and the platform partition plates divide the space between the platform top plate and the platform bottom plate into a plurality of stress units; the concrete pier column is poured into the pier column sleeve, and the top of the pier column sleeve is fixed to the bottom of the platform bottom plate. A #-shaped butt joint partition plate is arranged in a stress unit in the steel platform corresponding to the top of the pier column sleeve, and the two ends of the butt joint partition plate are connected with platform partition plates. The fixing device is suitable for the foot bridge allowing the fixing position to have certain deformation, almost has no interference on the internal structure of the steel platform, is simple in structure and clear in structure, and can be widely suitable for fixing a plurality of positions such as a foot bridge steel main beam, a corner platform and a stairway.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a consolidation structure of a concrete pier column and a steel platform of a pedestrian bridge. Background Art

[0002] Currently, cities across China are placing increasing emphasis on slow-moving systems. While prioritizing people, they also need to consider the efficiency of urban expressways. Consequently, it's essential to construct pedestrian overpasses that meet these functional requirements at specific locations, such as intersections and densely populated areas. The design of pedestrian overpasses now emphasizes landscape design, leading to more complex structures. Lower piers are increasingly being bonded to upper main beams, staircase platforms, and corner platforms. The treatment of steel piers and these steel platforms is relatively simple. Sometimes, for structural seismic resistance and construction requirements, concrete piers are used in the lower structure, making their bond to the steel platform relatively complex.

[0003] At present, for the consolidation of concrete piers and various types of steel platforms, the concrete piers are usually inserted into the steel platforms, and anchor boxes are set up inside the steel platforms. The force of the pier reinforcement is transmitted to the steel platform through the internal structure of the anchor boxes. Although this consolidation method is relatively stable and solid, it requires ample space inside the steel platform to arrange the anchor boxes. It is not suitable for situations where the steel platform is short or the internal structure itself is complex. Utility Model Content

[0004] Based on the above description, the utility model provides a consolidation structure of the concrete piers and steel platforms of a pedestrian bridge, which has almost no interference with the internal structure of the steel platform, has a simple structure and a clear structure, and can be widely used for consolidation in many locations such as the steel main beams, corner platforms, and stairways of pedestrian bridges.

[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a consolidation structure of a concrete pier and a steel platform of a pedestrian bridge, comprising a steel platform, a concrete pier and a pier sleeve; the steel platform comprises a platform top plate, a platform bottom plate and a plurality of platform partitions, the platform top plate and the platform bottom plate are arranged in parallel, the platform partitions are arranged in a well-shaped pattern between the platform top plate and the platform bottom plate, the top of the platform partition is connected to the platform top plate, the bottom of the platform partition is connected to the platform bottom plate, and the platform partitions divide the platform top plate and the platform bottom plate into a plurality of force-bearing units;

[0006] The concrete pier is poured into the pier sleeve, and the top of the pier sleeve is fixed to the bottom of the platform base plate; a cross-shaped docking partition is provided in the force-bearing unit in the steel platform corresponding to the top of the pier sleeve, the top of the docking partition is connected to the platform top plate, the bottom of the docking partition is connected to the platform base plate, and both ends of the docking partition are connected to the platform partition.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the concrete pier and the pier sleeve are both cylindrical, and the docking partitions are tangent to the corresponding circular edges of the pier sleeve.

[0009] Furthermore, the docking partition includes a main load-bearing docking partition and a secondary load-bearing docking partition. The main load-bearing docking partition is arranged perpendicular to the secondary load-bearing docking partition, and the bending moment applied to the concrete pier along the direction of the main load-bearing docking partition is greater than the bending moment applied to the concrete pier along the direction of the secondary load-bearing docking partition; the secondary load-bearing docking partition is disconnected and welded between the main load-bearing docking partition and the platform partition.

[0010] Furthermore, the force-bearing unit is square, and the docking partitions are vertically arranged to the connected platform partitions.

[0011] Furthermore, a plurality of stiffening ribs are provided on the outer side wall of the pier column sleeve, and the tops of the stiffening ribs are connected to the bottom of the platform base plate.

[0012] Furthermore, a plurality of shear nails are arranged on the inner side wall of the pier sleeve, and the shear nails are embedded in the concrete pier.

[0013] Furthermore, a plurality of vertically extending main stress-bearing bars are embedded in the concrete pier column, and the main stress-bearing bars are evenly arranged along the circumferential direction; the shear nails are arranged in multiple layers along the vertical direction, and the shear nails in each layer are alternately arranged with the main stress-bearing bars.

[0014] Furthermore, a partition plate is provided on the inner side wall of the pier sleeve, and the partition plate is used to pre-mark the highest position of the concrete pier pouring so that the top of the concrete pier is loosely matched with the platform bottom plate.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model is suitable for pedestrian bridges that allow a certain degree of deformation at the consolidation position, has almost no interference with the internal structure of the steel platform, has a simple structure, and a clear structure. It can be widely used for consolidation at many locations such as the steel main beams, corner platforms, and stairways of pedestrian bridges.

[0017] 2. The pier sleeve is provided with shear pins only on the inner side of the steel sleeve, the shear pins are staggered with the stress reinforcement bars of the steel pier, have little influence on the arrangement of the steel reinforcement bars in the concrete pier, and are convenient to pour. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of the consolidation structure of the concrete pier column and the steel platform of the pedestrian bridge is provided for the embodiment of the utility model;

[0019] Figure 2 A schematic view of the arrangement mode of the stiffening rib is provided for the embodiment of the utility model;

[0020] Figure 3 A schematic view of the arrangement mode of the shear pin is provided for the embodiment of the utility model;

[0021] Figure 4 A schematic view of the arrangement mode of the butt joint partition plate is provided for the embodiment of the utility model;

[0022] In the drawings, the component list represented by each reference numeral is as follows:

[0023] 1. Steel platform; 11, platform top plate; 12, platform bottom plate; 13, platform partition plate; 14, stress unit; 2, pier sleeve; 21, stiffening rib; 22, shear pin; 23, partition plate; 3, concrete pier column; 31, stress reinforcement bar; 4, butt joint partition plate; 41, main stress butt joint partition plate; 42, secondary stress butt joint partition plate. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should also be understood that the term "comprising" or "having" etc., specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0027] A kind of consolidation structure of concrete pier column 3 and steel platform 1 of footbridge, including steel platform 1, concrete pier column 3 and pier sleeve 2. Steel platform 1 includes platform top plate 11, platform bottom plate 12 and several platform partitions 13, platform top plate 11 and platform bottom plate 12 are arranged in parallel, and platform partition 13 is used to connect platform top plate 11 and platform bottom plate 12. Platform partition 13 is arranged in the shape of a cross between platform top plate 11 and platform bottom plate 12, the top of platform partition 13 is connected with platform top plate 11, the bottom of platform partition 13 is connected with platform bottom plate 12, and platform partition 13 separates platform top plate 11 and platform bottom plate 12 into several force units 14.

[0028] Concrete pier column 3 is poured into pier sleeve 2, and the top of pier sleeve 2 is fixed to the bottom of platform bottom plate 12. The outer side wall of pier sleeve 2 is uniformly provided with eight stiffening ribs 21 in the circumferential direction, and the top of the stiffening rib 21 is connected to the bottom of the platform bottom plate 12, thereby locally strengthening the connection between the pier sleeve 2 and the platform bottom plate 12.

[0029] A plurality of shear studs 22 are arranged on the inner side wall of the pier sleeve 2, the shear studs 22 are embedded in the concrete pier column 3, and the inner side of the pier sleeve 2 is tightly connected with the outer side of the concrete pier column 3 through the shear studs 22.

[0030] Specifically, a plurality of vertically extending force main bars 31 are embedded in the concrete pier column 3, and the force main bars 31 are uniformly arranged in the circumferential direction. The shear studs 22 are arranged in multiple layers in the vertical direction, and each layer of shear studs 22 is alternately arranged with the force main bars 31, so that the shear studs 22 are arranged between every two adjacent force main bars 31.

[0031] The pier sleeve 2 is only provided with shear studs 22 on the inner side of the steel sleeve, and the shear studs 22 are arranged alternately with the steel pier force main bars 31, which has little effect on the arrangement of the steel bars in the concrete pier column 3, and is convenient for pouring.

[0032] In addition, the inner side wall of the pier sleeve 2 is provided with a partition plate 23 at the top, the partition plate 23 is annular, and is used for prompting and marking the highest position of the pouring of the concrete pier column 3. When pouring the concrete pier column 3 in the pier sleeve 2, the top of the concrete pier column 3 can be slightly higher or slightly lower than the partition plate 23, so that the top of the concrete pier column 3 is in clearance fit with the platform bottom plate 12. The top of the concrete pier column 3 is left empty, which effectively ensures the welding of the steel sleeve and the platform bottom plate 1 of the steel platform 1, and the force of the combined section is clear.

[0033] A reinforcing structure is arranged in the force unit 14 inside the steel platform 1 corresponding to the top of the pier sleeve 2, and in this embodiment, the reinforcing structure is four docking partitions 4 arranged in the shape of a cross. The top of the docking partition 4 is connected to the platform top plate 11, the bottom of the docking partition 4 is connected to the platform bottom plate 12, and the two ends of the docking partition 4 are connected to the platform partition 13.

[0034] The force receiving unit 14 is square, and the abutment diaphragms 4 are vertically arranged with the platform diaphragms 13. The concrete pier column 3 and the pier sleeve 2 are cylindrical, and the abutment diaphragms 4 are tangent to the corresponding round edges of the pier sleeve 2.

[0035] In the embodiment, the abutment diaphragms 4 include two main force receiving abutment diaphragms 414 and two secondary force receiving abutment diaphragms 424, the main force receiving abutment diaphragms 414 are vertically arranged with the secondary force receiving abutment diaphragms 424, and the bending moment of the concrete pier column 3 in the direction of the main force receiving abutment diaphragms 414 is greater than the bending moment of the concrete pier column 3 in the direction of the secondary force receiving abutment diaphragms 424. The secondary force receiving abutment diaphragms 424 are disconnected and welded between the main force receiving abutment diaphragms 414 and the platform diaphragms 13.

[0036] The internal reinforcing structure of the steel platform 1 in the embodiment only uses four abutment diaphragms 4, has strong applicability, almost has no interference to the internal structure of the steel platform 1, is simple in structure, clear in structure, and can be applied to the consolidation of many positions such as the steel main beam of a footbridge, a corner platform, a ladder and the like.

[0037] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A structure for consolidating a concrete pier column of a footbridge with a steel platform, characterized by, It comprises a steel platform, a concrete pier and a pier sleeve; the steel platform comprises a platform top plate, a platform bottom plate and a plurality of platform partitions, the platform top plate and the platform bottom plate are arranged in parallel, the platform partitions are arranged in a well-shaped pattern between the platform top plate and the platform bottom plate, the top of the platform partition is connected to the platform top plate, the bottom of the platform partition is connected to the platform bottom plate, and the platform partitions divide the platform top plate and the platform bottom plate into a plurality of force-bearing units; The concrete pier is poured into the pier sleeve, and the top of the pier sleeve is fixed to the bottom of the platform base plate; a cross-shaped docking partition is provided in the force-bearing unit in the steel platform corresponding to the top of the pier sleeve, the top of the docking partition is connected to the platform top plate, the bottom of the docking partition is connected to the platform base plate, and both ends of the docking partition are connected to the platform partition.

2. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, The concrete pier column and the pier column sleeve are both cylindrical, and the docking partitions are tangent to the corresponding circular edges of the pier column sleeve.

3. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, The docking partition includes a main load-bearing docking partition and a secondary load-bearing docking partition. The main load-bearing docking partition is vertically arranged to the secondary load-bearing docking partition, and the bending moment applied to the concrete pier along the direction of the main load-bearing docking partition is greater than the bending moment applied to the concrete pier along the direction of the secondary load-bearing docking partition; the secondary load-bearing docking partition is disconnected and welded between the main load-bearing docking partition and the platform partition.

4. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, The force-bearing units are square, and the docking partitions are vertically arranged with the connected platform partitions.

5. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, A plurality of stiffening ribs are provided on the outer side wall of the pier column sleeve, and the tops of the stiffening ribs are connected to the bottom of the platform base plate.

6. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, A plurality of shear nails are arranged on the inner side wall of the pier sleeve, and the shear nails are embedded in the concrete pier.

7. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 6, characterized in that, A plurality of vertically extending main stress-bearing bars are embedded in the concrete pier column, and the main stress-bearing bars are evenly arranged along the circumferential direction; the shear nails are arranged in multiple layers along the vertical direction, and the shear nails in each layer are alternately arranged with the main stress-bearing bars.

8. The consolidation structure of a concrete pier column and a steel platform of a footbridge according to claim 1, characterized in that, A partition plate is provided on the inner side wall of the pier column sleeve, and the partition plate is used to pre-mark the highest position of the concrete pier column pouring so that the top of the concrete pier column and the platform bottom plate are loosely matched.

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