Bolting device for primary beam and secondary beam of overhanging discharging platform

Abstract

The utility model relates to a bolting device for primary and secondary beams of an overhanging discharging platform, belongs to the technical field of building construction, and particularly relates to the bolting device for the primary and secondary beams of the overhanging discharging platform, which comprises a pair of main beams, a plurality of secondary beams are fixedly connected between the pair of main beams, and L-shaped steel plates are fixedly mounted between the secondary beams and the main beams; according to the utility model, the turnover utilization mode is achieved, the use cost is reduced, the construction period is shortened, and the problems that although the existing device has better stability, the device is complicated, the time and labor are wasted during assembly and disassembly, the construction period is prolonged, the efficiency is low, and inconvenience is brought to workers are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a bolt connection device for primary and secondary beams of a cantilevered unloading platform. Background Art

[0002] With the rapid development of urbanization, the number of high-rise and super-high-rise buildings continues to increase, and cantilevered unloading platforms are widely used in high-rise and super-high-rise buildings, and play an important role in the structural construction of high-rise and super-high-rise buildings. The cantilevered unloading platform is a main tool of the feeding and discharging system on the construction site, and it occupies an important position in construction.

[0003] After searching, a Chinese patent with publication number CN117513646A discloses an H-shaped steel main and secondary beam rigid connection node structure, wherein the main beam includes a first upper flange plate, a first lower flange plate, and a first web plate. The present invention relates to the technical field of steel components. This H-shaped steel main and secondary beam rigid connection node structure eliminates the need for multiple welding between the main beam and the secondary beam, reducing construction time and effort, and also avoids the problem of local stress concentration caused by welding heat accumulation caused by multiple positions, thereby reducing thermal deformation of the structure. In addition, the upper flanges of the two secondary beams are connected to the upper flange of the main beam by a connecting plate and a first high-strength bolt. The two secondary beams can resist negative bending moments at the supports, forming a rigid node that can effectively transmit bending moments. When the secondary beam is large in size, the sliding plate is pulled out from the inside of the connecting plate, and the first upper flange of the secondary beam is clamped with an L-shaped clamping plate, and then fixed with a fifth high-strength bolt, so that the bending moment transmission is more stable and less prone to shaking.

[0004] Based on the above search and combined with existing technology findings;

[0005] Although the above-mentioned search patent has good stability, the device is complicated, time-consuming and labor-intensive to install and dismantle, which prolongs the construction period and is inefficient, causing inconvenience to workers, and therefore has certain limitations. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a cantilever unloading platform main and secondary beam bolting device, which provides a turnover utilization method, reduces the use cost, and saves construction time.

[0007] The technical solution to achieve the purpose of the utility model is: a main and secondary beam bolting device for a cantilevered unloading platform, including a pair of main beams, a plurality of secondary beams fixedly connected between the pair of main beams, and L-shaped steel plates fixedly installed between the secondary beams and the main beams.

[0008] Preferably, both sides of the L-shaped steel plate are respectively connected to the main beam and the secondary beam via threads with a plurality of bolts.

[0009] Preferably, support steel is fixedly installed on the bottom end of each main beam and the other side of the secondary beam.

[0010] Compared with the prior art, the present invention has the following significant advantages:

[0011] Firstly, compared with the traditional welding connection, the utility model is more convenient and quick to construct, and is easy to dismantle after use; the turnover utilization method reduces the use cost and saves the construction time;

[0012] Secondly, the present invention is easy to disassemble through bolt connection, which saves material resources and improves economy and practicality. In addition, support steel is installed between the main beam and the secondary beam to provide support force and stability for the device.

[0013] The invention solves the problem that the existing device has good stability but is complicated, time-consuming and labor-intensive to install and dismantle, prolongs the construction period and is inefficient, and brings inconvenience to workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall first-perspective structure provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure provided by the utility model;

[0017] Figure 3 It is a schematic diagram of the overall side structure provided by the utility model.

[0018] Description of reference numerals:

[0019] 1. Main beam; 2. Secondary beam; 3. L-shaped steel plate; 4. Bolts; 5. Support steel. DETAILED DESCRIPTION

[0020] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides a cantilever unloading platform main and secondary beam bolting device through improvement. The technical solution of the utility model is:

[0022] like Figure 1-3As shown, a main and secondary beam bolting device of a cantilever unloading platform includes a pair of main beams 1, a plurality of secondary beams 2 are fixedly connected between the pair of main beams 1, and L-shaped steel plates 3 are fixedly installed between the secondary beams 2 and the main beams 1, which is convenient for installation and disassembly, saving construction costs and construction time.

[0023] Furthermore, multiple bolts 4 are respectively connected to the main beam 1 and the secondary beam 2 on both sides of the L-shaped steel plate 3 through threads, and the multiple bolts 4 improve the stability and firmness of the device.

[0024] Furthermore, support steel 5 is fixedly installed on the bottom end of each main beam 1 and the other side of the secondary beam 2 to enhance the bearing capacity of the device and extend the service life of the device.

[0025] The specific working method is: when processing the I-beam main beam 1 and secondary beam 2, drill several holes slightly larger than the diameter of the bolts 4 at the corresponding positions on the side of the I-beam; assemble the main beam 1 and secondary beam 2 together according to the predetermined position; drill 4 holes slightly larger than the diameter of the anchor bolts at the corresponding positions of the 100mm*100mm*3mm L-shaped steel plate 3, and place it on the side of the I-beam main beam 1 and secondary beam 2, so that the holes on the L-shaped steel plate 3 are aligned with the holes on the connecting beam; use 4 M10 bolts 4 to penetrate the holes set in the I-beam main beam 1, secondary beam 2 and L-shaped steel plate 3, and tighten them with double nuts. To ensure a stable connection, make sure that there are no less than 3 exposed threads on the end of the bolt 4; after the remaining main beams 1 and secondary beams 2 are firmly connected and fixed in the above manner, assemble the other components of the cantilever unloading platform, and use a tower crane or other lifting equipment to lift it to the designated floor for installation of the cantilever unloading platform.

[0026] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A cantilever unloading platform main and secondary beam bolting device, comprising a pair of main beams (1), characterized in that: A plurality of secondary beams (2) are fixedly connected between a pair of main beams (1); an L-shaped steel plate (3) is fixedly installed between the secondary beams (2) and the main beam (1); a plurality of bolts (4) are respectively connected to the main beam (1) and the secondary beam (2) on both sides of the L-shaped steel plate (3) through threads; and a supporting steel (5) is fixedly installed at the bottom end of each main beam (1) and the other side of the secondary beam (2).

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