Temporary construction channel of left and right framing type bridge

Abstract

The utility model relates to a construction temporary channel of a left and right framing type bridge, which is characterized by comprising a horizontal channel structure and stairway structures detachably connected to two end parts of the horizontal channel structure, the horizontal channel structure comprises two square tube longitudinal beams which are arranged in parallel at intervals and a plurality of square tube cross beams which are vertically arranged on the two square tube longitudinal beams at intervals, a channel panel is laid on the plurality of square tube cross beams, the channel panel is formed by splicing a plurality of boards which are arranged adjacently, the square tube longitudinal beams and the square tube cross beams are overlapped with each other, and the square tube longitudinal beams and the square tube cross beams are arranged in parallel at intervals. The connecting parts are locked and fixed through bolts, and all the wood plates are bound and fixed on the square tube cross beam through steel wires; the construction temporary channel of the left and right framing type bridge is reasonable in design, can be used as the temporary channel of the left and right framing type bridge, and can meet the use requirements of different construction stages.

Description

Technical field:

[0002] The utility model relates to the technical field of engineering construction, in particular to a temporary construction passage for left and right section-type bridges. Background technology:

[0004] In order to avoid complex structural stress and difficult construction due to too many lanes and too wide bridge deck, many newly built bridges are designed as left and right split structures; the common left and right split bridges have a center interval of 50~200cm. During the construction of the upper structure, workers often need to cross the center dividing strip to carry materials, etc. The common way of passage is: upper and lower safety ladder cages are set on both sides of the double-span bridge, and people pass through the upper and lower passages on both sides to pass through the left and right spans; when the span between the two sides of the bridge is not large, a simple springboard is usually set up to enable people to pass horizontally.

[0005] The problem of people passing between the left and right bridges can be solved by adding upper and lower safety cages, but this is time-consuming and labor-intensive, and requires increased investment in safety measures for the upper and lower passages, which is not economical. For bridges with large spans, simple springboards are set as pedestrian passages, but there are insufficient protective measures, high safety risks, and a low degree of standardization.

[0006] Compared with the method of adding upper and lower safety ladder cages on both sections and setting up simple springboards between the two sections, the researchers proposed and developed an integral standard beam-faced temporary aisle, which can be erected on the top surface of adjacent flange plates of the bridge to ensure safe passage of workers. The integral standard beam-faced temporary aisle guarantees the safety requirements of workers' passage to a certain extent and can also meet the standardization requirements of the construction site.

[0007] However, the integral standard beam temporary walkway needs to be processed by a professional manufacturer, which usually has a high cost. The structure is integral and easily damaged during the hoisting and turnover process. In addition, the length is fixed, and its applicability to other bridge sections with inconsistent intervals is poor. At the same time, the beam temporary walkway is only suitable for the situation where both bridge guardrails have not been constructed. After the construction of both bridge deck guardrails is completed or the construction of a single bridge deck guardrail is completed, additional inclined step ladders need to be added on both sides of the passage, and the applicability effect is poor. Summary of the invention:

[0009] The purpose of the utility model is to provide a temporary construction passage for a left and right sectional bridge. The temporary construction passage for the left and right sectional bridge is reasonably designed, is conducive to being used as a temporary passage for the left and right sectional bridge, and can meet the use requirements in different construction stages.

[0010] The utility model provides a temporary construction passage for a left and right split-type bridge, which is characterized by comprising a horizontal passage structure and a ladder structure detachably connected to both ends of the horizontal passage structure, wherein the horizontal passage structure comprises two parallel and spaced square tube longitudinal beams and a plurality of square tube cross beams vertically spaced on the two square tube longitudinal beams, passage panels are laid on the plurality of square tube cross beams, and the passage panels are formed by splicing a plurality of adjacently arranged wooden boards, the square tube longitudinal beams and the square tube cross beams are overlapped with each other, and are locked and fixed by bolts at the intersections, and each wooden board is fixed to the square tube cross beam by steel wire binding.

[0011] Preferably, the above-mentioned stairway structure includes two parallel and spaced-apart square tube main beams in a "Z" shape and a steel pedal vertically welded between the inner end surfaces of the two square tube main beams, the upper end of the square tube main beam rests on the end of the square tube longitudinal beam, and an arc-shaped support plate is detachably connected between the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam, and the two ends of the arc-shaped support plate are respectively locked on the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam by bolts.

[0012] Preferably, an extension structure is provided on the above-mentioned square tube longitudinal beam, and the extension structure includes two square tube longitudinal beams whose ends are aligned and close to each other, and lining steel pipes are passed through the inner holes of the two square tube longitudinal beams, and a reinforcing steel plate is provided on the outside of the intersection of the two square tube longitudinal beams, and bolts are passed through the reinforcing steel plates of the two square tube longitudinal beams, the square tube longitudinal beams and the lining steel pipe for locking and fixing.

[0013] Preferably, the horizontal channel structure and the ladder structure are both provided with edge steel pipe guardrails, which are formed by cross-welding of a number of steel pipes to form a grid-like guardrail.

[0014] The utility model provides a method for using a temporary construction passage for a left-right split-frame bridge.

[0015] Working condition 1 (when the concrete guardrails of both bridge decks have not been constructed), assemble the horizontal channel structure, support the two ends of the two square tube longitudinal beams on the ends of the left and right split-frame bridges, or temporarily fix the square tube longitudinal beams to the embedded steel bars of the guardrails through wires or buckles, so that workers can pass horizontally;

[0016] Working condition 2 (when the concrete guardrail of a single bridge deck has been constructed), the horizontal channel structure and the ladder structure are assembled separately. For the side where the concrete guardrail has been constructed, the square tube longitudinal beam of the horizontal channel is directly placed on the top of the guardrail; for the side where the concrete guardrail has not been constructed, the square tube longitudinal beam of the horizontal channel and the square tube main beam of the ladder structure are connected and fixed through arc-shaped support plates, and both sides of the ladder are erected on the two bridge decks and temporarily anchored, so that workers can go up and down and pass horizontally;

[0017] Working condition 3 (when the concrete guardrails of both bridge decks have been constructed), the horizontal channel structure and the ladder structure are assembled and fixed respectively. The two sides of the horizontal channel structure are erected on the top of the guardrails of the two bridge decks, and the ladder structures on both sides are placed on the two bridge decks, so that workers can pass up and down and horizontally.

[0018] The utility model is an assembled temporary construction passage for left and right split-type bridges, which can directly utilize existing materials on the construction site, be assembled and disassembled, and be easy to use. It can greatly improve the safety of personnel passage while ensuring economy, and it can be used for horizontal passage on the beam surface, up and down passage in the foundation pit, up and down passage on the pier, etc. when the double-span bridge deck guardrail is not constructed; after the overall passage is formed by combination, it can be used when the construction of the double-span bridge deck guardrail is completed or the construction of the single-span bridge deck guardrail is completed, and it has a wide range of applications and diverse functions. Description of the drawings:

[0020] Figure 1 It is the front view of working condition 1 of the utility model;

[0021] Figure 2 It is the front view of working condition 2 of the utility model;

[0022] Figure 3 It is the front view of working condition 3 of the utility model;

[0023] Figure 4 It is a schematic diagram of the construction of the extended structure;

[0024] Figure 5 It is a three-dimensional diagram of the utility model;

[0025] A1 is the left bridge deck, A2 is the right bridge deck, A3 is the guardrail with embedded steel bars, and A4 has constructed guardrails. Specific implementation method:

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by ordinary technicians in the technical field to which the present application belongs.

[0028] The temporary construction passage of the left and right split-frame bridge of the utility model comprises a horizontal passage structure 1 and a ladder structure 2 detachably connected to both ends of the horizontal passage structure, wherein the detachable connection may be a bolt connection or a snap connection.

[0029] The horizontal channel structure 1 includes two parallel and spaced square tube longitudinal beams 101 and a plurality of square tube cross beams 102 vertically spaced on the two square tube longitudinal beams. A channel panel 103 is laid on the plurality of square tube cross beams. The channel panel 103 is formed by splicing a plurality of adjacently arranged wooden boards 104. The square tube longitudinal beams 101 and the square tube cross beams 102 are overlapped with each other and are fixed by bolts at the intersection (i.e., the overlapping portion). Each wooden board can be fixed to the square tube cross beam by steel wire binding.

[0030] The ladder structure 2 includes two parallel and spaced square tube main beams 201 in a "Z" shape and a steel pedal 202 vertically welded between the inner end surfaces of the two square tube main beams. The steel pedal 202 is a rectangular steel plate. The upper end of the square tube main beam 201 is overlapped on the end of the square tube longitudinal beam 101 (and bolts can be used to lock and fix it at the overlapped part). An arc-shaped support plate 203 (the arc-shaped support plate 203 can be a steel plate) is detachably connected between the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam. The two ends of the arc-shaped support plate are respectively locked on the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam by bolts.

[0031] In order to meet the different spacings of the left and right split-type bridges, an extension structure 3 is provided on the above-mentioned square tube longitudinal beam, and the extension structure 3 includes two square tube longitudinal beams whose ends are aligned and close to each other (the length directions of the two square tube longitudinal beams are consistent, that is, the two are aligned and close to each other to form a straight line), and lining steel pipes 301 are inserted into the inner holes of the two square tube longitudinal beams. The outer circumferential size of the lining steel pipe 301 is equivalent to the inner hole size of the square tube longitudinal beam, so that the lining steel pipe 301 can be inserted into the square tube longitudinal beam, and a reinforcing steel plate 302 is provided on the outside of the intersection of the two square tube longitudinal beams. The width of the reinforcing steel plate 302 is equivalent to the width of the square tube longitudinal beam, and bolts 303 are inserted into the reinforcing steel plates, square tube longitudinal beams and lining steel pipes of the two square tube longitudinal beams for locking and fixing.

[0032] In order to improve the safety of use, an edge steel pipe guardrail 4 can be provided on both the horizontal channel structure and the ladder structure. The edge steel pipe guardrail 4 is formed by cross-welding a number of steel pipes 401 to form a grid-like guardrail. The edge steel pipe guardrail 4 on the horizontal channel structure is rectangular, and the edge steel pipe guardrail 4 on the ladder structure is trapezoidal.

[0033] The utility model provides a method for using a temporary construction passage for a left-right split-frame bridge.

[0034] Working condition 1 (when the concrete guardrails of both bridge decks have not been constructed), assemble the horizontal channel structure, support the two ends of the two square tube longitudinal beams on the ends of the left and right split-frame bridges, or temporarily fix the square tube longitudinal beams to the embedded steel bars of the guardrails through wires or buckles, so that workers can pass horizontally;

[0035] Working condition 2 (when the concrete guardrail of a single bridge deck has been constructed), the horizontal channel structure and the ladder structure are assembled separately. For the side where the concrete guardrail has been constructed, the square tube longitudinal beam of the horizontal channel is directly placed on the top of the guardrail; for the side where the concrete guardrail has not been constructed, the square tube longitudinal beam of the horizontal channel and the square tube main beam of the ladder structure are connected and fixed through arc-shaped support plates, and both sides of the ladder are erected on the two bridge decks and temporarily anchored, so that workers can go up and down and pass horizontally;

[0036] Working condition 3 (when the concrete guardrails of both bridge decks have been constructed), the horizontal channel structure and the ladder structure are assembled and fixed respectively. The two sides of the horizontal channel structure are erected on the top of the guardrails of the two bridge decks, and the ladder structures on both sides are placed on the two bridge decks, so that workers can pass up and down and horizontally.

[0037] The utility model is an assembled temporary construction passage for left and right split-type bridges, which can directly utilize existing materials on the construction site, be assembled and disassembled, and be easy to use. It can greatly improve the safety of personnel passage while ensuring economy, and it can be used for horizontal passage on the beam surface, up and down passage in the foundation pit, up and down passage on the pier, etc. when the double-span bridge deck guardrail is not constructed; after the overall passage is formed by combination, it can be used when the construction of the double-span bridge deck guardrail is completed or the construction of the single-span bridge deck guardrail is completed, and it has a wide range of applications and diverse functions.

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A temporary construction passage for a left- and right-framed bridge, characterized in that: It includes a horizontal channel structure and a ladder structure detachably connected to both ends of the horizontal channel structure, the horizontal channel structure includes two parallel and spaced square tube longitudinal beams and a plurality of square tube cross beams vertically spaced on the two square tube longitudinal beams, channel panels are laid on the plurality of square tube cross beams, the channel panels are formed by splicing a plurality of adjacently arranged wooden boards, the square tube longitudinal beams and the square tube cross beams are overlapped with each other and are fixed by bolts at the intersections, and each wooden board is fixed to the square tube cross beam by steel wire binding.

2. The temporary construction passage for the left and right framing bridge according to claim 1 is characterized by: The stairway structure includes two parallel and spaced-apart square tube main beams in a "Z" shape and a steel pedal vertically welded between the inner end surfaces of the two square tube main beams. The upper end of the square tube main beam rests on the end of the square tube longitudinal beam, and an arc-shaped support plate is detachably connected between the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam. The two ends of the arc-shaped support plate are respectively locked on the end of the square tube longitudinal beam and the middle and upper part of the square tube main beam by bolts.

3. The temporary construction passage for the left and right framing bridge according to claim 2 is characterized by: An extension structure is provided on the square tube longitudinal beam, and the extension structure includes two square tube longitudinal beams whose ends are aligned and close to each other. Lining steel pipes are inserted into the inner holes of the two square tube longitudinal beams, and reinforcing steel plates are provided on the outside of the intersection of the two square tube longitudinal beams. Bolts are inserted into the reinforcing steel plates of the two square tube longitudinal beams, the square tube longitudinal beams and the lining steel pipes for locking and fixing.

4. The temporary construction passage for the left and right framed bridge according to claim 3 is characterized by: The horizontal channel structure and the ladder structure are both provided with edge steel pipe guardrails, which are formed by cross-welding of a number of steel pipes to form a grid-like guardrail.

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