Overpass T-shaped beam maintenance hanging bracket

Abstract

The utility model discloses a viaduct T-shaped beam maintenance hanging bracket which comprises two cross beams arranged in parallel in a spaced mode and hanging bracket plates arranged on the cross beams and matched with the lower ends of T-shaped beams, and the hanging bracket plates on the cross beams are distributed along the same straight line. The hanging bracket plates penetrate through the T-shaped beams through linear type bolts to be installed on the T-shaped beams in a suspended mode, a plurality of bottom rods are vertically connected to the two cross beams of the hanging bracket plate on at least one side, and a platform plate is arranged by covering the bottom rods through a quick connection mechanism. The T-shaped beam is maintained under the condition that passing of a ground road below a bridge is not affected, traffic jam caused by the ground road below the bridge is avoided, and the T-shaped beam maintenance device has the advantages of being fast to disassemble and assemble and saving disassembly and assembly time.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a maintenance hanger for a viaduct T-shaped beam. Background Art

[0002] A viaduct usually consists of a bridge foundation, bridge piers, wide beams, several groups of T-shaped beams straddling between adjacent wide beams, and side walls arranged on the outermost T-shaped beams. The T-shaped beam includes a wing plate in a horizontal state and a web in a vertical state. As the service life of the viaduct increases, it is necessary to repair the damaged parts of the T-shaped beam. Repairing the T-shaped beam by erecting a scaffold under the bridge affects the traffic on the ground road under the bridge. Content of the Utility Model

[0003] The purpose of the utility model is to provide a maintenance hanger for a viaduct T-shaped beam, so as to solve the problem of how to repair the T-shaped beam without affecting the traffic on the ground road under the bridge.

[0004] To solve the above technical problems, the technical solution provided by the utility model is: a maintenance hanger for a viaduct T-shaped beam, including two cross beams arranged in parallel at intervals, hanger plates installed on each of the cross beams and matching with the lower end of the T-shaped beam, the hanger plates on each cross beam are distributed along the same straight line, the hanger plates are suspended and installed on the T-shaped beam through straight bolts penetrating the T-shaped beam, and at least on one side, multiple bottom rods are vertically connected to the two cross beams of the hanger plates, and a platform plate is arranged on the covering bottom rods through a quick connection mechanism.

[0005] Further, for the maintenance hanger for a viaduct T-shaped beam provided by the utility model, the quick connection mechanism includes an insertion rod and a locking rod. On the lower surface of the platform plate, a number of the insertion rods are aligned and distributed in a straight line on each of the bottom rods. On both sides of each insertion rod parallel to the bottom rod, inward concave limiting card slots are arranged. The insertion rod is vertically inserted into a hollow through cavity arranged along the length of the bottom rod. At both ends of the bottom rod, one of the locking rods in its through cavity is respectively inserted and connected. The sum of the lengths of the two locking rods in each bottom rod is less than or equal to the length of the bottom rod. Each locking rod includes two symmetrically distributed parts. Along the length direction of the inner side of each part of the locking rod, a limiting card strip is arranged. The locking rod and the corresponding insertion rods in its position are clamped and connected through the limiting card strip and the limiting card slot in the through cavity of the bottom rod.

[0006] Further, for the maintenance hanger for a viaduct T-shaped beam provided by the utility model, on the end surface of the bottom rod where each locking rod is aligned, a baffle protruding from its lower surface is vertically welded, and the baffle is vertically connected to the cross beam through a positioning bolt.

[0007] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the bottom rod is a square steel pipe, and the central square through-hole of the square steel pipe is the through cavity.

[0008] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the positions of the limit card slots and the limit card strips are interchanged, and each locking rod is embedded in the square steel pipe or the square steel column inside the bottom rod.

[0009] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the platform plate is warped upwards at two sides perpendicular to each cross beam to form flanges.

[0010] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, it further includes a guardrail vertically arranged upwards at one end of the two cross beams.

[0011] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the guardrail includes two vertical rods and multiple cross rods therebetween, and the lower end of each vertical rod is correspondingly arranged on one cross beam.

[0012] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the hanger plates on each cross beam include a left hanger plate and a right hanger plate symmetrically distributed. The left hanger plate and the right hanger plate are both arranged on the cross beam through connecting pieces, and the guardrail is arranged on the cross beam through the connecting pieces.

[0013] Furthermore, for the maintenance hanger for viaduct T-shaped beams provided by the present utility model, the connecting piece includes a sleeve sleeved on the cross beam. A locking bolt is vertically and upwardly threadedly connected to the lower end of the sleeve, and the locking bolt abuts against the cross beam or the locking bolt is screwed into and connected to the cross beam; Stiffening plates are symmetrically distributed and welded between the sleeve and the vertical rods of the left hanger plate, the right hanger plate and the guardrail.

[0014] Compared with the prior art, the beneficial effects of the maintenance hanger for viaduct T-shaped beams provided by the present utility model are as follows:

[0015] It is suspended and installed at the lower end of the T-shaped beam through the hanger plate, and the platform plate is used as a construction platform to carry out maintenance construction on the T-shaped beam, so that the ground road under the bridge is not occupied, and the T-shaped beam can be maintained without affecting the traffic on the ground road under the bridge, avoiding traffic congestion on the ground road under the bridge.

[0016] The support frame of the platform plate is formed by the cross beam and the bottom rod, ensuring the reliable support of the platform plate and improving the reliability and stability of the maintenance hanger for viaduct T-shaped beams during use. Description of the Drawings

[0017] Figure 1It is a front elevation structural schematic diagram of a viaduct and a maintenance hanger for T-shaped girders of the viaduct installed thereon;

[0018] Figure 2 It is a front elevation structural schematic diagram of a maintenance hanger for T-shaped girders of the viaduct installed at the lower end of the T-shaped girder;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a maintenance hanger for T-shaped girders of the viaduct;

[0020] Figure 4 It is Figure 3 An enlarged view of part A in

[0021] Figure 5 It is a bottom surface exploded three-dimensional structural schematic diagram of a platform plate installed on a bottom rod through a quick connection mechanism;

[0022] Figure 6 It is Figure 5 An enlarged view of part B in

[0023] As shown in the figure:

[0024] 100, Viaduct;

[0025] 110, Bridge foundation, 120, Pier, 130, Wide beam, 140, T-shaped girder, 150, Side wall, 160, Bridge deck;

[0026] 200, Ground;

[0027] 300, Maintenance hanger for T-shaped girders of the viaduct, 1, Cross beam, 2, Hanger plate, 21, Left hanger plate, 22, Right hanger plate, 3, Guardrail, 4, Connecting piece, 41, Sleeve, 42, Stiffening plate, 43, Locking bolt, 5, Platform plate, 6, Bottom rod, 7, Insert rod, 8, Lock rod, 9, Baffle plate, 10, Positioning bolt, 11, Limit strip, 12, Limit groove;

[0028] 400, Linear bolt. Specific implementation mode

[0029] The present utility model will be described in detail below with reference to the accompanying drawings: According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.

[0030] The viaduct 100 is composed of a bridge foundation 110, a pier 120, a wide beam 130, a plurality of groups of T-shaped girders 140 straddling between two adjacent wide beams 130, and a side wall 150 provided on the outermost T-shaped girder 140. Among them, the bridge foundation 110 includes a bearing platform below the ground 200 and pile foundations thereunder.

[0031] Please refer toFigures 1 to 3 , an embodiment of the present utility model provides a maintenance hanging bracket 300 for a viaduct T-shaped beam, which includes two cross beams 1 arranged in parallel at intervals, hanging bracket plates 2 arranged on each of the cross beams 1 and matched with the lower end of the T-shaped beam 140 for installation. The hanging bracket plates 2 on each cross beam 1 are distributed along the same straight line. The hanging bracket plates 2 are suspended and installed on the T-shaped beam 140 through linear bolts 400 penetrating the T-shaped beam 140. At least on one side, multiple bottom rods 6 are vertically connected to the two cross beams 1 of the hanging bracket plate 2, and a platform plate 5 is arranged on each of the bottom rods 6 through a quick connection mechanism. The platform plate 5 can be composed of multiple steel plates spliced together. Figure 3 The platform plate 5 composed of three bottom rods 6 and three steel plates is exemplified.

[0032] The maintenance hanging bracket 300 for a viaduct T-shaped beam provided by the embodiment of the present utility model is suspended and installed at the lower end of the T-shaped beam 140 through the hanging bracket plate 2, and the T-shaped beam 140 is repaired and constructed through the platform plate 5 as a construction platform, so that the ground road under the bridge is not occupied, and the T-shaped beam 140 can be repaired without affecting the traffic on the ground road under the bridge, avoiding traffic congestion on the ground road under the bridge.

[0033] The maintenance hanging bracket 300 for a viaduct T-shaped beam provided by the embodiment of the present utility model forms a support frame for the platform plate 5 through the cross beam 1 and the bottom rod 6, ensuring the reliable support of the platform plate 5 and improving the reliability and stability of the maintenance hanging bracket 300 for a viaduct T-shaped beam during use.

[0034] Please refer to Figure 3 and Figures 5 to 6, in order to achieve the rapid disassembly and assembly of the platform plate 5, the high-bridge T-shaped beam maintenance hanger 300 provided by the embodiment of the present utility model, the quick-connection mechanism includes an insertion rod 7 and a locking rod 8. A plurality of the insertion rods 7 are linearly distributed on the lower surface of the platform plate 5 and aligned with each of the bottom rods 6. Each of the insertion rods 7 is provided with an inwardly concave limiting slot 12 on both sides parallel to the bottom rod 6. The insertion rod 7 is vertically inserted into a hollow through cavity provided along the length of the bottom rod 6. Two ends of the bottom rod 6 are respectively inserted and connected along the length direction with one of the locking rods 8 in its through cavity. The sum of the lengths of the two locking rods 8 located in each of the bottom rods 6 is less than or equal to the length of the bottom rod 6. Each of the locking rods 8 includes two symmetrically distributed parts. A limiting strip 11 is arranged along the length direction on the inner side of each of the locking rods 8. The locking rod 8 and each of the insertion rods 7 at its corresponding position are snap-connected through the limiting strip 11 and the limiting slot 12 in the through cavity of the bottom rod 6. In order to improve the support strength for the platform plate 5, the sum of the lengths of the two locking rods 8 located in each of the bottom rods 6 is preferably equal to the length of the bottom rod 6, so as to improve the anti-bending performance of the bottom rod 6 through the locking rod 8, and thus improve the support strength for the platform plate 5. The rapid disassembly and assembly of the high-bridge T-shaped beam maintenance hanger 300 is realized through the rapid disassembly and assembly of the platform plate 5, improving the disassembly and assembly efficiency. The positions of the limiting slot 12 and the limiting strip 11 can be interchanged. After the positions are interchanged, the locking rod 8 does not have to be composed of two discrete parts and can be an integral component. At this time, the locking rod 8 can be a square steel pipe or a square steel column.

[0035] Please refer to Figures 3 to 5, To improve the structural stability, for the overhead bridge T-beam maintenance hanger 300 provided by the embodiments of the present utility model, each of the locking rods 8 is aligned, and a baffle 9 extending out of its lower surface is vertically welded to the end face of the bottom rod 6, and the baffle 9 is vertically connected to the cross beam 1 through a positioning bolt 10. Thus, the bottom rod 6 and the cross beam 1 are fixedly connected, improving the structural stability of the overhead bridge T-beam maintenance hanger 300. At this time, the baffle 9 can form a component with two bays of the locking rod 8. The installation method of the platform plate 5 is as follows: First, insert the platform plate 5 vertically into the through cavity of the bottom rod 6 through the insertion rod 7, and then insert each locking rod 8 at both ends in the length direction of the cross beam 1 into the through cavity of the bottom rod 6 along one end of the bottom rod 6, so that the bottom rod 6 and the locking rod 8 form a nested connection. And when each bay of each locking rod 8 is inserted into the bottom rod 6, the limit card strip 11 on the locking rod 8 is snap-connected to the limit card slot 12 of the insertion rod 7, thereby quickly fixing the platform plate 5 to the bottom rod 6 through the inserted locking rod 8. Then weld the baffle 9 and connect the baffle 9 and the connected locking rod 8 to the cross beam 1 through the positioning bolt 10. The removal method is the reverse process of the installation method, so that the platform plate 5 can be quickly disassembled and assembled on the bottom rod 6 through the quick connection mechanism, improving the assembly and disassembly efficiency of the platform plate 5. Since the locking rod 8 and the cross beam 1 are inserted and connected, the quick connection or separation of the two can be realized. Since the locking rod 8 and the insertion rod 7 are snap-connected, when the locking rod 8 is inserted into or pulled out of the bottom rod 6, the quick locking connection and quick separation of the locking rod 8 and the insertion rod 7 are realized, further improving the disassembly and assembly efficiency of the overhead bridge T-beam maintenance hanger 300.

[0036] For the overhead bridge T-beam maintenance hanger 300 provided by the embodiments of the present utility model, through the insertion rod 7, the locking rod 8, the baffle 9, the positioning bolt 10, the limit card strip 11 and the limit card slot 12, the insertion rod 7 welded to the lower surface of the platform plate 5 is inserted into the hole opened on the surface of the bottom rod 6, and the locking rod 8 inserted into the bottom rod 6 is stuck outside the insertion rod 7. At the same time, the limit card strip 11 integrally formed on the inner side of the locking rod 8 is stuck in the limit card slot 12 opened on the outer surface of the insertion rod 7, so as to facilitate the limitation of the insertion rod 7 when the locking rod 8 is inserted into the bottom rod 6. At the same time, the baffle 9 welded to the end of the locking rod 8 is fixed to the cross beam 1 through the positioning bolt 10, realizing the fixed connection of the cross beam 1, the bottom rod 6 and the platform plate 5.

[0037] Please refer to Figures 4 to 5 , To improve the reliability of the connection between the cross beam 1 and the bottom rod 6, for the overhead bridge T-beam maintenance hanger 300 provided by the embodiments of the present utility model, the bottom rod 6 is a square steel pipe, and the central square through hole of the square steel pipe is the through cavity. The cross beam 1 is a square steel pipe or a solid square steel, and the bottom rod 6 overlaps above the cross beam 1.

[0038] Please refer to Figures 2 to 3, to prevent the accumulated water on the platform plate 5 from overflowing, in the maintenance hanger 300 for the viaduct T-shaped beam provided by the embodiment of the present utility model, the platform plate 5 is warped upward at two sides perpendicular to each cross beam 1 to form flanges. At this time, the accumulated water in the platform plate 5 can flow out along the length direction of the T-shaped beam 140, avoiding overflowing from both sides of the platform plate 5.

[0039] Please refer to Figure 2 , to repair the T-shaped beam 140 and the lower surface or side surface of the side wall 150 at the side wall 150 of the viaduct plate 100, the maintenance hanger 300 for the viaduct T-shaped beam provided by the embodiment of the present utility model further includes a guardrail 3 vertically arranged upward at one end of two cross beams 1. The guardrail 3 is located outside the platform plate 5. At this time, the height of the guardrail 3 is higher than the bridge deck 160. Of course, in order to provide safety protection for the operators when maintaining the T-shaped beam 140 at other positions, when the maintenance hanger 300 for the viaduct T-shaped beam is installed on the T-shaped beam 140 between the two side T-shaped beams 140, the height of the guardrail 3 should be less than the elevation of the lower surface of the T-shaped beam 140. The guardrail 3 includes two vertical rods and multiple cross rods therebetween. The lower end of each vertical rod is correspondingly arranged on one cross beam 1.

[0040] Please refer to Figure 3 and Figure 4 , to achieve the quick disassembly and assembly of the hanger plate 2 and the cross beam 1 and to achieve the quick disassembly and assembly of the guardrail 3 and the cross beam 1, in the maintenance hanger 300 for the viaduct T-shaped beam provided by the embodiment of the present utility model, the hanger plate 2 on each cross beam 1 includes a left hanger plate 21 and a right hanger plate 22 which are symmetrically distributed. The left hanger plate 21 and the right hanger plate 22 are both arranged on the cross beam 1 through a connecting member 4. The guardrail 3 is arranged on the cross beam 1 through the connecting member 4. The left hanger plate 21 and the right hanger plate 22 are in a broken line structure matching the lower end of the T-shaped beam 140. The connecting member 4 includes a sleeve 41 sleeved on the cross beam 1. A locking bolt 43 is vertically and upwardly threadedly connected to the lower end of the sleeve 41. The locking bolt 43 abuts against the cross beam 1 or the locking bolt 43 is screwed into and connected to the cross beam 1. Symmetrically distributed stiffening plates 42 are welded between the sleeve 41 and the left hanger plate 21, the right hanger plate 22 and the vertical rod of the guardrail 3. At this time, the connecting member 4 and the left hanger plate 21 form an integral member, the connecting member 4 and the right hanger plate 22 form an integral member, and the guardrail 3 and the connected connecting member 4 also form an integral member. By loosening the locking bolt 43, the left hanger plate 21, the right hanger plate 22 and the guardrail 3 can be quickly adjusted in position on the cross beam 1 for disassembly. By tightening the locking bolt 43, the left hanger plate 21, the right hanger plate 22 and the guardrail 3 can be quickly installed on the cross beam 1.

[0041] The maintenance hanger 300 for the viaduct T-shaped beam provided by the embodiment of the present utility model improves the overall disassembly and assembly efficiency of the maintenance hanger 300 for the viaduct T-shaped beam and saves time through the quick disassembly and assembly of the platform plate 5 and the bottom rod 6, the quick disassembly and assembly of the hanger plate 2 and the cross beam 1, and the quick disassembly and assembly of the guardrail 3 and the cross beam 1.

[0042] The present utility model is not limited to the above specific embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model. Those skilled in the art can make other levels of modifications and changes to the present utility model. Thus, if these modifications and changes of the present utility model are within the scope of the claims of the present utility model, the present utility model also intends to include these modifications and changes.

Claims

1. A maintenance hanger for a viaduct T-beam, characterized in that, It includes two crossbeams arranged in parallel at intervals, hanging plate assemblies installed on each crossbeam to match the lower end of the T-shaped beam, and the hanging plate assemblies on each crossbeam are distributed along the same straight line. The hanging plate assemblies are suspended on the T-shaped beam by linear bolts passing through the T-shaped beam. At least on one side, multiple bottom bars are vertically connected to the two crossbeams of the hanging plate assemblies, and a platform plate is provided through a quick connection mechanism covering each bottom bar.

2. The maintenance hanger for the viaduct T-beam according to claim 1, characterized in that, The quick connection mechanism includes inserting rods and locking rods. A number of inserting rods are linearly distributed on the lower surface of the platform plate and aligned with each bottom bar. On both sides of each inserting rod parallel to the bottom bar, inwardly concave limiting card slots are provided. The inserting rods are vertically inserted into the hollow through cavities arranged along the length of the bottom bars. At both ends of each bottom bar, one locking rod in its through cavity is inserted and connected respectively. The sum of the lengths of the two locking rods in each bottom bar is less than or equal to the length of the bottom bar. Each locking rod includes two symmetrically distributed frames, and limiting card strips are arranged along the length direction on the inner side of each frame of the locking rod. The locking rods and the corresponding inserting rods are engaged and connected through the limiting card strips and the limiting card slots in the through cavity of the bottom bar.

3. The maintenance hanger for the viaduct T-shaped beam according to claim 2, characterized in that, Aligning with the end face of the bottom bar, a baffle protruding from its lower surface is vertically welded to each locking rod, and the baffle is vertically connected to the crossbeam through positioning bolts.

4. The maintenance hanger for the viaduct T-beam according to claim 2, characterized in that, The bottom bar is a square steel pipe, and the central square through hole of the square steel pipe is the through cavity.

5. The maintenance hanger for the viaduct T-beam according to claim 2, characterized in that, The positions of the limiting card slots and the limiting card strips are interchanged, and each locking rod is embedded in the square steel pipe or square steel column inside the bottom bar.

6. The maintenance hanger for the viaduct T-shaped beam according to claim 1, characterized in that The platform plate warps upward at two sides perpendicular to each crossbeam to form flanges.

7. The maintenance hanger for the viaduct T-shaped beam according to claim 1, characterized in that It also includes a guardrail vertically arranged at one end of the two crossbeams.

8. The maintenance hanger for the viaduct T-beam according to claim 7, characterized in that, The guardrail includes two vertical rods and multiple cross rods therebetween, and the lower end of each vertical rod is correspondingly arranged on one crossbeam.

9. The maintenance hanger for the viaduct T-beam according to claim 8, characterized in that, The hanging plate assemblies on each crossbeam include a left hanging plate and a right hanging plate symmetrically distributed. The left hanging plate and the right hanging plate are both installed on the crossbeam through connecting pieces, and the guardrail is installed on the crossbeam through the connecting pieces.

10. The maintenance hanger for the viaduct T-beam according to claim 9, characterized in that, The connecting piece includes a sleeve sleeved on the crossbeam. A locking bolt is vertically and upwardly threadedly connected to the lower end of the sleeve, and the locking bolt abuts against the crossbeam or is screwed into the crossbeam for connection; symmetrically distributed stiffening plates are welded between the sleeve and the left hanging plate, the right hanging plate and the vertical rod of the guardrail.

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