Large-span overhanging roof root overhaul channel

Abstract

A large-span overhanging roof root overhaul channel comprises steel box girders, overhanging trusses, inclined struts, walkway plates and guardrail plates. The cantilever trusses are connected to the side face of the steel box girder at intervals in the long axial direction of the steel box girder. The side surface of the steel box girder is connected with a connecting plate; a group of inclined struts are arranged at intervals along the long axial direction of the steel box girder; a horizontal keel is connected between the middle part of each inclined strut and the steel box girder; a vertical support is arranged between the bottom of the horizontal keel and the inclined support; a pull rod is tied between the lower part of each inclined strut and the connecting plate; the walkway plate is laid on the top of the horizontal keel; a longitudinal connecting rod is connected between every two adjacent inclined struts; the guardrail plate is arranged on the side, away from the steel box girder, of the set of inclined struts, and the guardrail plate is parallel to the inclined plane where the set of inclined struts are located. A handrail is arranged on one side, close to the steel box girder, of the top of the group of inclined struts; a sling is arranged on the inclined strut; the upper ends of the slings are connected to the upper chord. According to the utility model, the technical problems of high time and labor cost and potential construction safety hazards in the traditional maintenance operation are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, in particular to a large-span cantilevered roof root maintenance channel. Background Art

[0002] Due to the specificity of the stadium stand roof structure and the complexity of the force, regular maintenance is usually required during use. The current conventional maintenance method is to build a safe and stable scaffolding according to the actual situation so that construction workers can easily approach and work on the roof structure. This maintenance work has the following potential defects: Scaffolding requires a certain amount of time and labor costs. If the operation is improper or the type of scaffolding is not selected properly, it may be time-consuming and labor-intensive, affecting the construction progress. In addition, there are construction safety hazards such as high-altitude operations and scaffolding during construction. If not managed properly, it may cause casualties or accidents to construction workers. Utility Model Content

[0003] The utility model aims to provide a large-span cantilever roof root maintenance channel to solve the technical problems that traditional maintenance operations consume a lot of time and manpower costs and have construction safety hazards, which may cause casualties or accidents to construction personnel.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions.

[0005] A large-span cantilever roof root inspection channel, comprising a steel box girder and a cantilever truss; also comprising a diagonal brace, a walkway plate and a guardrail plate; the cantilever truss has a group, which is connected to the side of the steel box girder at intervals along the long axis of the steel box girder; a connecting plate is connected to the side of the steel box girder at a position between the upper chord and the lower chord of the cantilever truss; the diagonal brace has a group, which is arranged at intervals along the long axis of the steel box girder, and the lower end of the diagonal brace is fixedly connected to the connecting plate; a horizontal keel is connected between the middle part of each diagonal brace and the steel box girder; the horizontal A vertical brace is provided between the bottom of the keel and the diagonal brace; a tie rod is connected between the lower part of each diagonal brace and the connecting plate; the walkway plate is laid on the top of the horizontal keel; a longitudinal connecting rod is connected between adjacent diagonal braces; the guardrail plate is arranged on the side of a group of diagonal braces away from the steel box girder, and the guardrail plate is parallel to the inclined surface where a group of diagonal braces are located; a handrail is provided on the top of a group of diagonal braces, close to the side of the steel box girder; a sling is provided on the diagonal brace at a position corresponding to the upper chord of the cantilever truss; the upper end of the sling is connected to the upper chord of the cantilever truss.

[0006] Preferably, the horizontal keel includes a transverse keel and a longitudinal keel; there is a group of transverse keels, and a group of transverse keels is arranged corresponding to a group of diagonal braces; one end of the transverse keel is welded to the steel box girder, and the other end of the transverse keel is welded to the diagonal brace; the longitudinal keel is connected between adjacent transverse keels to connect a group of transverse keels into a whole.

[0007] Preferably, a bridge frame and a light strip are provided below the walkway board; and light-transmitting holes are provided at intervals on the board surface of the guardrail board.

[0008] Preferably, the vertical distance between the walkway board and the handrail is not less than 1.2m; the width of the walkway board is not less than 600mm.

[0009] Preferably, the walkway board is formed by splicing walkway board units; hooks are provided at the bottom of the walkway board units; and the hooks are correspondingly connected to the horizontal keels.

[0010] Preferably, a hoop is provided on the back side of the guardrail plate at a position corresponding to the longitudinal connecting rod; the hoop connects the guardrail plate to the longitudinal connecting rod.

[0011] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0012] 1. The utility model sets an inspection channel on the side of the steel box girder, through which the complex stress-bearing parts of the steel box girder and the cantilever truss are inspected. This structure effectively utilizes the existing structure as a load-bearing component, and solves the technical problems of traditional scaffolding that requires a certain amount of time and labor costs and may affect the construction progress.

[0013] 2. The utility model sets a connecting plate on the side of the steel box beam, and the lower end of the diagonal brace is connected to the connecting plate, which increases the force-bearing area of ​​the side of the steel box beam. At the same time, the utility model sets a sling on the diagonal brace at the position corresponding to the upper chord of the cantilever truss, which improves the construction safety.

[0014] 3. The utility model has lamps connected to the side of the diagonal brace away from the steel box girder, and a light strip is arranged under the walkway board; at the same time, the utility model has light-transmitting holes spaced apart on the board surface of the guardrail board; this structural design not only provides lighting for construction, but also increases the lighting effect of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Figure 1 The utility model is a schematic diagram of the side structure of a large-span cantilevered roof root maintenance passage.

[0017] Figure 2 It is a structural schematic diagram of a hook arranged at the bottom of a horizontal keel in the utility model.

[0018] Figure 3 It is a structural schematic diagram of arranging a hoop on the guardrail plate in the utility model.

[0019] Figure numbers: 1-steel box girder, 2-cantilever truss, 3-diagonal brace, 4-walkway board, 5-guardrail board, 6-connecting plate, 7-horizontal keel, 7.1-transverse keel, 7.2-longitudinal keel, 8-vertical brace, 9-pull rod, 10-longitudinal connecting rod, 11-handrail, 11.1-handrail, 11.2-connecting short rod, 12-sling, 13-bridge, 14-hook, 15-hoop, 16-lighting. DETAILED DESCRIPTION

[0020] like Figure 1-3 As shown, this large-span cantilever roof root maintenance passage includes a steel box girder 1 and a cantilever truss 2; it also includes a diagonal brace 3, a walkway plate 4 and a guardrail plate 5; the cantilever truss 2 has a group, which is connected to the side of the steel box girder 1 at intervals along the long axis of the steel box girder 1; a connecting plate 6 is connected to the side of the steel box girder 1, located between the upper chord and the lower chord of the cantilever truss 2; the diagonal brace 3 has a group, which is arranged at intervals along the long axis of the steel box girder 1, and the lower end of the diagonal brace 3 is fixedly connected to the connecting plate 6; a horizontal keel 7 is connected between the middle part of each diagonal brace 3 and the steel box girder 1; the horizontal keel 7 A vertical brace 8 is provided between the bottom and the diagonal brace 3; a pull rod 9 is connected between the lower part of each diagonal brace 3 and the connecting plate 6; the walkway plate 4 is laid on the top of the horizontal keel 7; a longitudinal connecting rod 10 is connected between adjacent diagonal braces 3; the guardrail plate 5 is arranged on the side of a group of diagonal braces 3 away from the steel box girder 1, and the guardrail plate 5 is parallel to the inclined surface where a group of diagonal braces 3 are located; a handrail 11 is provided on the top of a group of diagonal braces 3, close to the side of the steel box girder 1; a sling 12 is provided on the diagonal brace 3, corresponding to the upper chord of the cantilever truss 2; the upper end of the sling 12 is connected to the upper chord of the cantilever truss 2.

[0021] In this embodiment, the horizontal keel 7 includes a transverse keel 7.1 and a longitudinal keel 7.2; the transverse keel 7.1 has a group, and a group of transverse keels 7.1 is correspondingly arranged with a group of diagonal braces 3; one end of the transverse keel 7.1 is welded and connected to the steel box girder 1, and the other end of the transverse keel 7.1 is welded and connected to the diagonal brace 3; the longitudinal keel 7.2 is connected between adjacent transverse keels 7.1 to connect a group of transverse keels 7.1 into a whole.

[0022] In this embodiment, a bridge frame 13 and a light strip are provided below the walkway board 4 ; and light-transmitting holes are provided at intervals on the board surface of the guardrail board 5 .

[0023] In this embodiment, the vertical distance between the walkway board 4 and the handrail 11 is not less than 1.2 m; the width of the walkway board 4 is not less than 600 mm.

[0024] In this embodiment, the walkway board 4 is formed by splicing walkway board units; a hook 14 is provided at the bottom of the walkway board unit; and the hook 14 is correspondingly connected to the horizontal keel 7.

[0025] In this embodiment, a hoop 15 is provided on the back side of the guardrail plate 5 at a position corresponding to the longitudinal connecting rod 10 ; the hoop 15 connects the guardrail plate 5 with the longitudinal connecting rod 10 .

[0026] In this embodiment, a lamp 16 is connected to the side of the diagonal brace 3 facing away from the steel box girder 1 .

[0027] In this embodiment, the handrail 11 includes a handrail 11.1 and a connecting short rod 11.2; the handrail 11.1 is arranged parallel to the top longitudinal connecting rod 10; there is a group of connecting short rods 11.2, which are arranged at intervals along the longitudinal direction, and the connecting short rods 11.2 connect the handrail 11.1 with the top longitudinal connecting rod 10.

[0028] The above embodiments are not exhaustive of specific implementation methods, and there may be other embodiments. The purpose of the above embodiments is to illustrate the utility model rather than to limit the protection scope of the utility model. All applications derived from simple changes of the utility model fall within the protection scope of the utility model.

Claims

1. A large-span cantilever roof root maintenance passage, comprising a steel box girder (1) and a cantilever truss (2); characterized in that: The invention also comprises a diagonal brace (3), a walkway plate (4) and a guardrail plate (5); the cantilever trusses (2) are provided in a group and are connected to the side of the steel box girder (1) at intervals along the long axis of the steel box girder (1); a connecting plate (6) is connected to the side of the steel box girder (1) at a position between the upper chord and the lower chord of the cantilever truss (2); the diagonal braces (3) are provided in a group and are arranged at intervals along the long axis of the steel box girder (1), and the lower ends of the diagonal braces (3) are fixedly connected to the connecting plate (6); a horizontal keel (7) is connected between the middle of each diagonal brace (3) and the steel box girder (1); a vertical brace (8) is provided between the bottom of the horizontal keel (7) and the diagonal brace (3); A tie rod (9) is connected between the lower part of the support (3) and the connecting plate (6); the walkway plate (4) is laid on the top of the horizontal keel (7); a longitudinal connecting rod (10) is connected between adjacent diagonal supports (3); the guardrail plate (5) is arranged on the side of a group of diagonal supports (3) away from the steel box girder (1), and the guardrail plate (5) is parallel to the inclined surface where the group of diagonal supports (3) are located; a handrail (11) is arranged on the top of the group of diagonal supports (3) and close to the side of the steel box girder (1); a sling (12) is arranged on the diagonal support (3) at a position corresponding to the upper chord of the cantilever truss (2); the upper end of the sling (12) is connected to the upper chord of the cantilever truss (2).

2. The large-span cantilevered roof root maintenance passage according to claim 1 is characterized by: The horizontal keel (7) comprises a transverse keel (7.1) and a longitudinal keel (7.2); the transverse keel (7.1) is provided in a group, and a group of transverse keels (7.1) is arranged correspondingly to a group of diagonal braces (3); one end of the transverse keel (7.1) is welded to the steel box girder (1), and the other end of the transverse keel (7.1) is welded to the diagonal brace (3); the longitudinal keel (7.2) is connected between adjacent transverse keels (7.1) to connect the group of transverse keels (7.1) into a whole.

3. The large-span cantilevered roof root maintenance passage according to claim 1 is characterized by: A bridge frame (13) and a light strip are provided below the walkway board (4); and light-transmitting holes are provided at intervals on the board surface of the guardrail board (5).

4. The large-span cantilevered roof root maintenance passage according to claim 1 is characterized by: The vertical distance between the walkway board (4) and the handrail (11) is not less than 1.2 m; and the width of the walkway board (4) is not less than 600 mm.

5. The large-span cantilevered roof root maintenance passage according to claim 1 is characterized by: The walkway board (4) is formed by splicing walkway board units; a hook (14) is provided at the bottom of the walkway board unit; and the hook (14) is correspondingly hooked and connected to the horizontal keel (7).

6. The large-span cantilevered roof root maintenance passage according to claim 1 is characterized by: A hoop (15) is provided on the back side of the guardrail plate (5) at a position corresponding to the longitudinal connecting rod (10); the hoop (15) connects the guardrail plate (5) and the longitudinal connecting rod (10).

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