Assembly type construction platform for arch bridge steel lattice beam segments

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to an arch bridge steel lattice beam segment assembly type construction platform which comprises two I-shaped steel ejector rods, the two I-shaped steel ejector rods are perpendicularly and fixedly arranged on a steel lattice beam body, and supporting frames are arranged at the two ends of each I-shaped steel ejector rod. The supporting frame comprises an adjustable hanging structure, two ladder stand structures and a supporting low rod, the adjustable hanging structure is connected between the two I-shaped steel ejector rods, the two ladder stand structures are arranged at the two ends of the adjustable hanging structure respectively, the supporting low rod is arranged between the lower ends of the two ladder stand structures, and an anti-skid bottom plate is arranged on the supporting low rod. The construction operation platform is simple in structure, safe, reliable, easy to disassemble and assemble and high in efficiency, the safety of steel lattice beam sections during hoisting and splicing is improved, the construction operation platform is designed in an assembly mode, all rod pieces of the supporting frame are connected through bolts, assembly and disassembly are convenient and fast, the specific size can be adjusted according to actual conditions, and the construction operation platform is convenient to use. And the method has good applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to an assembled construction platform for arch bridge steel lattice beam segments. Background Art

[0002] With the advancement of technology and economic development, a large number of large-span bridges across rivers and rivers have been built and opened to traffic in recent years. As the span of bridges continues to break through, arch bridges are increasingly appearing due to their larger spanning capacity. However, one of the defects of the steel lattice beam segments of arch bridges during hoisting and splicing is that they are located in mid-air and lack a safe and reliable construction site or platform construction, which affects the construction progress and safety. Therefore, a simple, safe, reliable, easy to disassemble and assemble, and efficient construction platform is designed according to the needs to solve the above technical defects.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model provides an arch bridge steel lattice beam segment assembly type construction platform, aiming to solve the technical problems pointed out in the above background technology.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] An arch bridge steel lattice beam segment assembly type construction platform comprises two spaced-apart I-beam top rods, both of which are vertically fixed on the steel lattice beam body, and both ends of the I-beam top rods are provided with support frames.

[0007] The support frame includes an adjustable hanging structure, two ladder structures and a low support rod. The adjustable hanging structure is connected between the two I-beam top rods. The two ladder structures are respectively arranged at both ends of the adjustable hanging structure, and the low support rod is arranged between the lower ends of the two ladder structures, and a non-slip bottom plate is arranged on the low support rod.

[0008] Preferably, the adjustable hanging structure includes two groups of hook assemblies arranged at intervals, and the hook assembly includes an angle steel hanging top rod, an angle steel clamping rod and an angle steel connecting rod. The angle steel clamping rod is fixedly arranged on the outside of the I-beam top rod, and the angle steel hanging top rod and the angle steel connecting rod are respectively arranged at the upper and lower ends of the I-beam top rod. The angle steel hanging top rod and the angle steel connecting rod are both provided with long holes, and both are bolted to the angle steel clamping rod through the long holes thereon. The ladder structure is arranged on the inner side of the I-beam top rod, and is bolted to the angle steel hanging top rod and the angle steel connecting rod respectively.

[0009] Preferably, a limit block is provided on the outer side of the angle steel hanging top rod on the I-beam top rod.

[0010] Preferably, the ladder structure includes two ladder uprights arranged in parallel and a plurality of step cross bars connected between the two ladder uprights, the ladder uprights are respectively bolted to the angle steel hanging top rod and the angle steel connecting rod, and the supporting low rod is provided on the lowest step cross bar.

[0011] Preferably, a guardrail is provided on the outer side of the ladder uprights between the two ladder structures.

[0012] Preferably, a dense mesh is installed on the ladder structure and the guardrail.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. The utility model provides an assembled construction platform for steel lattice beam segments of an arch bridge. It adopts an assembled design, and bolts are used to connect the rods of the support frame. It is easy to install and dismantle, and the specific size can be adjusted according to actual conditions, so it has good applicability.

[0015] 2. The materials are simple and easy to obtain, convenient to transport and store, and can be used multiple times, with a high reuse rate and low cost investment.

[0016] 3. The structure is simple and easy to use, taking up less space, facilitating construction deployment and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the support frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustable hanging structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection between the low support rod and the anti-slip bottom plate of the utility model.

[0021] The main component symbols in the figure are explained as follows:

[0022] 1. I-beam top rod; 2. Steel lattice beam body; 3. Support frame; 31. Adjustable hanging structure; 311. Angle steel hanging top rod; 312. Angle steel clamp rod; 313. Angle steel connecting rod; 32. Ladder structure; 321. Ladder uprights; 322. Step crossbar; 33. Support low rod; 4. Anti-slip bottom plate; 5. Limit block; 6. Guardrail; 7. Close mesh; 100. Long hole; 200. U-shaped buckle. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] Example

[0025] like Figures 1 to 4 As shown, an assembled construction platform for assembling arch bridge steel lattice beam segments includes two I-beam top rods 1 arranged at intervals, the two I-beam top rods 1 are vertically fixed on the steel lattice beam body 2, both ends of the I-beam top rod 1 are provided with a support frame 3, the support frame 3 includes an adjustable hanging structure 31, two ladder structures 32 and a supporting low rod 33, the adjustable hanging structure 31 is connected between the two I-beam top rods 1, the two ladder structures 32 are respectively arranged at both ends of the adjustable hanging structure 31, and a supporting low rod 33 is provided between the lower ends of the two ladder structures 32, and a non-slip bottom plate 4 is provided on the supporting low rod 33; the utility model adopts an assembled design, and the various rods of the support frame 3 are connected by bolts, which is convenient for installation and removal, and the specific size can be adjusted according to actual conditions, and it has good applicability.

[0026] In this embodiment, the adjustable hanging structure 31 includes two groups of hook assemblies arranged at intervals, and the hook assembly includes an angle steel hanging top rod 311, an angle steel clamping rod 312 and an angle steel connecting rod 313. The angle steel clamping rod 312 is fixedly arranged on the outer side of the I-beam top rod 1, and the angle steel hanging top rod 311 and the angle steel connecting rod 313 are respectively arranged at the upper and lower ends of the I-beam top rod 1. The angle steel hanging top rod 311 and the angle steel connecting rod 313 are both provided with long holes 100, and both are bolted to the angle steel clamping rod 312 through the long holes 100 thereon. The ladder structure 32 is arranged on the inner side of the I-beam top rod 1 and is bolted to the angle steel hanging top rod 311 and the angle steel connecting rod 313 respectively; the setting of the long holes 100 facilitates the adjustment of the fixed position and spacing of the angle steel hanging top rod 311 and the angle steel connecting rod 313, so that they can adapt to being installed on the I-beam top rod 1 set at different spacings, thereby improving the applicability of this platform.

[0027] For details, see Figure 3 A limit block 5 is provided on the outer side of the angle steel hanging top rod 311 on the I-beam top rod 1; the angle steel hanging top rod 311 is connected and fixed to the angle steel clamp rod 312 by bolts, and then fixed on the I-beam top rod 1. The setting of the limit block 5 can further limit the angle steel hanging top rod 311, prevent the adjustable hanging structure 31 from slipping as a whole, and improve safety.

[0028] In this embodiment, refer to Figure 2 The ladder structure 32 includes two ladder uprights 321 arranged in parallel and a plurality of step cross bars 322 connected between the two ladder uprights 321. The ladder uprights 321 are respectively bolted to the angle steel hanging top bar 311 and the angle steel connecting bar 313. A support low bar 33 is provided on the step cross bar 322 at the bottom. The ladder uprights 321 are assembled components with a length of 1m. The ladder uprights 321 can be opened with holes at a certain interval and connected with the step cross bars 322 by bolts to form an up and down ladder, which is convenient for workers to work. The support bottom bar 33 is an assembled component with a length of 80cm. The support bottom bar 33 and the step cross bar 322 are fixed by bolts for easy disassembly. Figure 4 The anti-skid bottom plate 4 on the supporting bottom bar 33 can be fixedly connected to the supporting bottom bar 33 by a U-shaped buckle to form the bottom surface of the construction platform.

[0029] Specifically, a guardrail 6 is provided on the outer side of the ladder uprights 321 between the two ladder structures 32; the guardrail 6 is a prefabricated component with a length of 80 cm, and the guardrail 6 plays a role in edge protection; a dense mesh 7 is installed on the ladder structure 32 and the guardrail 4; the dense mesh 7 is combined with the guardrail 6 to improve the protection safety performance of the platform.

[0030] The utility model provides an arch bridge steel lattice beam segment assembly type construction platform, and the specific assembly process includes the following steps:

[0031] Step 1: prefabricate each standard module in the factory according to the preset drawing size, and transport it to the construction site after processing and acceptance;

[0032] Step 2: At the construction site, align the ladder uprights 321 on a flat ground, align the step crossbars 322 with the holes on the ladder uprights 321 and connect them with bolts to form a ladder structure, connect the angle steel hanging top rod 311, the angle steel clamping rod 312 and the angle steel connecting rod 313 to form a hook assembly, and the hook assembly and the ladder structure are connected by bolts to form a whole;

[0033] Step 3, bolt the support bottom rod 33 to the step cross bar 322 at the bottom of the ladder structure to form an overall frame; weld an upper limit block 5 to the I-beam top rod 1 to prevent the frame from slipping;

[0034] Step 4, place the anti-skid bottom plate 4, use the U-shaped buckle 200 to fix the anti-skid bottom plate 4 on the supporting bottom rod 33 to form the bottom surface of the construction platform, and bolt the guardrail 6 to the ladder upright 321 on the surrounding free sides according to safety requirements, and install the dense mesh 7 for safety protection. Finally, check whether all bolts are tightened and whether there is any deformation, etc., and the installation of the construction platform is completed.

[0035] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. An arch bridge steel lattice beam segment assembly construction platform, characterized in that: The invention comprises two I-beam top rods (1) arranged at an interval, wherein the two I-beam top rods (1) are both vertically fixed on a steel lattice beam body (2), and support frames (3) are provided at both ends of the I-beam top rods (1). The support frame (3) comprises an adjustable hanging structure (31), two ladder structures (32) and a low support rod (33); the adjustable hanging structure (31) is connected between the two I-beam top rods (1); the two ladder structures (32) are respectively arranged at two ends of the adjustable hanging structure (31); the low support rod (33) is arranged between the lower ends of the two ladder structures (32); and a non-slip bottom plate (4) is arranged on the low support rod (33).

2. The segmental assembly construction platform for steel lattice beams of an arch bridge as claimed in claim 1, characterized in that: The adjustable hanging structure (31) comprises two groups of hook assemblies arranged at intervals, the hook assemblies comprising an angle steel hanging top rod (311), an angle steel clamping rod (312) and an angle steel connecting rod (313), the angle steel clamping rod (312) being fixedly arranged on the outer side of the I-beam top rod (1), the angle steel hanging top rod (311) and the angle steel connecting rod (313) being arranged at the upper and lower ends of the I-beam top rod (1), respectively, the angle steel hanging top rod (311) and the angle steel connecting rod (313) being both provided with long holes (100), and both being bolted to the angle steel clamping rod (312) through the long holes (100) thereon, and the ladder structure (32) being arranged on the inner side of the I-beam top rod (1), and being bolted to the angle steel hanging top rod (311) and the angle steel connecting rod (313) respectively.

3. The segmental assembly construction platform for steel lattice beams of an arch bridge as claimed in claim 2, characterized in that: A limit block (5) is provided on the outer side of the angle steel hanging top rod (311) on the I-beam top rod (1).

4. The segmental assembly construction platform for steel lattice beams of an arch bridge as claimed in claim 2, characterized in that: The ladder structure (32) comprises two ladder uprights (321) arranged in parallel and a plurality of step cross bars (322) connected between the two ladder uprights (321); the ladder uprights (321) are respectively bolted to the angle steel hanging top bars (311) and the angle steel connecting bars (313); and the support low bar (33) is provided on the lowest step cross bar (322).

5. The segmental assembly construction platform for steel lattice beams of an arch bridge as claimed in claim 4, characterized in that: A guardrail (6) is provided between the two ladder structures (32) on the outer sides of the ladder uprights (321).

6. The segmental assembly construction platform for steel lattice beams of an arch bridge as claimed in claim 5, characterized in that: A dense mesh (7) is installed on the ladder structure (32) and the guardrail (6).

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