Large-span multi-layer bridge installation structure

Abstract

The utility model relates to the technical field of bridge, concretely is a kind of large-span multilayer bridge mounting structure. Including two opposite factory building steel columns, several groups of support plates are oppositely arranged on the two factory building steel columns along longitudinal direction, cable bridge is placed on each group of support plate, the upper portion of factory building steel column is vertically provided with overhanging assembly, the middle section of cable bridge is provided with the supporting plate mechanism for supporting the bottom of cable bridge, and the supporting plate mechanism is connected with the overhanging assembly of both sides. By setting overhanging assembly on factory building steel column, and connecting with the supporting plate mechanism of the middle section of cable bridge, under the premise of not relying on crane beam, stable and reliable intermediate support is provided for multilayer cable bridge, which helps to simplify installation process, shorten construction period, and improve the overall load safety of bridge system.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically a large-span multi-layer cable tray installation structure. Background Technology

[0002] In modern industrial plants, logistics warehouses, and other large-scale construction projects, long-span cable tray supports are widely used for supporting and laying various cables and pipelines, playing a vital role in ensuring the normal operation of power transmission, signal connectivity, and production logistics. In traditional construction, if a building has crane beams, these beams can often be used as installation supports, effectively improving construction efficiency and ensuring structural safety.

[0003] However, in actual engineering projects, some buildings, due to their early construction date or functional design limitations, do not have crane beams. In such cases, installing large-span, multi-layer cable tray supports presents challenges such as a lack of support points, increased installation difficulty, longer construction periods, and higher construction costs. Common practices often involve using temporary supports or reinforcing the existing structure, which not only complicates the process but also poses challenges to construction safety and the quality of subsequent use.

[0004] Therefore, given the technical challenges of installing large-span, multi-layer cable trays in crane-free beam workshops, there is an urgent need to explore a new installation method that is structurally sound, easy to install, economical, and reliable, in order to meet the current requirements for the quality, efficiency, and safety of cable tray system installation in construction projects. Utility Model Content

[0005] The present invention aims to solve the above problems and thus provide a convenient construction method for installing large-span multi-layer cable trays.

[0006] The technical solution adopted by this utility model to solve the aforementioned problem is: A long-span multi-layer cable tray installation structure includes two opposing steel columns of a factory building. Several sets of support plates are arranged longitudinally on the two steel columns, and a cable tray is placed on each set of support plates. A cantilever assembly is vertically arranged on the upper part of the steel columns of the factory building. A support plate mechanism is arranged in the middle section of the cable tray to support the bottom of the cable tray. The support plate mechanism is connected to the cantilever assembly on both sides.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: This effectively solves the problems of missing support points, complex construction, and high cost in cable tray installation in factories without crane beams. By setting cantilever components on the steel columns of the factory and connecting them with the support plate mechanism in the middle section of the cable tray, a stable and reliable intermediate support is provided for multi-layer cable trays without relying on crane beams. This helps to simplify the installation process, shorten the construction cycle, and improve the overall load-bearing safety of the cable tray system.

[0008] As a preferred embodiment, a further technical solution of this utility model is: Furthermore, the cantilever assembly includes a cantilever beam vertically fixed to the upper part of the steel column of the factory building. Its structure is stable and the force is directly transmitted, which can effectively bear the load from the middle section of the cable tray and reliably transmit the force to the steel column, thereby enhancing the rigidity and deformation resistance of the overall structure.

[0009] Furthermore, the support mechanism includes a support frame with open sides, and several layers of horizontal plates are provided inside the support frame. The number of horizontal plates is equal to the number of cable trays. The horizontal plates support the bottom surface of the middle section of the cable tray. A top plate is provided on the top of the support frame. Two sets of lower lifting rings are symmetrically arranged on both sides of the top plate. Two upper lifting rings are arranged along the length of the bottom of the cantilever beam. Galvanized steel wire ropes are connected between the upper lifting rings and the lower lifting rings on the same side to achieve uniform support for the middle section of the cable tray. The lower lifting rings symmetrically arranged on the top plate are connected to the upper lifting rings at the bottom of the cantilever beam through galvanized steel wire ropes to form a flexible hanging support system. This connection method can adjust the length to adapt to the actual installation height requirements and also has a certain vibration resistance performance, which is conducive to enhancing the stability of the cable tray system under dynamic loads. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a side view of an embodiment of the present utility model. Figure 3 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model; The following are marked in the diagram: 1. Steel column of the factory building; 2. Support plate; 3. Cable tray; 4. Cantilever beam; 5. Support frame; 6. Horizontal plate; 7. Lower lifting ring; 8. Upper lifting ring; 9. Galvanized steel wire rope. Detailed Implementation

[0011] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0012] A long-span multi-layer cable tray installation structure includes two opposing steel columns 1. Several sets of support plates 2 are arranged longitudinally opposite each other on the two steel columns 1. The support plates 2 are made of channel steel. A cable tray 3 is placed on each set of support plates 2. A cantilever assembly is vertically arranged on the upper part of the steel columns 1. A support plate mechanism is arranged in the middle section of the cable tray 3 to support the bottom of the cable tray 3. The support plate mechanism is connected to the cantilever assembly on both sides.

[0013] Furthermore, the cantilever assembly includes a cantilever beam 4 vertically fixed to the upper part of the steel column 1 of the factory building. The cantilever beam 4 is an I-beam and is welded to the steel column 1 of the factory building. Reinforcing ribs are welded between the flanges of the cantilever beam 4. It is vertically fixed to the upper part of the steel column 1 of the factory building. Its structure is stable and the force is directly transmitted. It can effectively bear the load from the middle section of the cable tray and reliably transmit the force to the steel column, thereby enhancing the rigidity and deformation resistance of the overall structure.

[0014] Furthermore, the support mechanism includes a support frame 5 with open sides. Several horizontal plates 6 are provided inside the support frame 5. The number of horizontal plates 6 is equal to the number of cable trays 3. The horizontal plates 6 are supported on the bottom surface of the middle section of the cable tray 3. A top plate is provided on the top of the support frame 5. Two sets of lower lifting rings 7 are symmetrically arranged on both sides of the top plate. Two upper lifting rings 8 are arranged along the length of the bottom of the cantilever beam 4. Galvanized steel wire ropes 9 are connected to the upper lifting rings 8 and the lower lifting rings 7 on the same side to achieve uniform support for the middle section of the cable tray. The lower lifting rings 7 symmetrically arranged on the top plate and the upper lifting rings 8 at the bottom of the cantilever beam 4 are connected by galvanized steel wire ropes 9 to form a flexible hanging support system. This connection method can adjust the length to adapt to the actual installation height requirements and also has a certain vibration resistance performance, which is conducive to enhancing the stability of the cable tray system under dynamic loads.

[0015] In a factory building without crane beams, cantilever beams 4 are vertically fixed to the upper parts of the steel columns 1 on both sides of the building to provide a reliable intermediate stress point. Subsequently, a support plate mechanism is set at the bottom of the middle section of the cable tray 3. The lower lifting ring 7 at the top of the support plate mechanism is connected to the upper lifting ring 8 at the bottom of the cantilever beam 4 by galvanized steel wire rope 9 to form a flexible suspension support. During installation, the multi-layer cable tray 3 is placed on each set of support plates 2 on the steel columns, while the bottom surface of its middle section is supported by the corresponding horizontal plates 6 in the support plate mechanism, thereby achieving uniform support along the span of the cable tray. This structure effectively transfers the load in the middle of the cable tray to the steel columns 1 of the building through the cantilever components. Without relying on crane beams, it enhances the overall rigidity and stability, simplifies the installation process, helps to shorten the construction cycle, and improves the load-bearing safety of the cable tray system.

[0016] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A long-span, multi-layer cable tray installation structure, comprising two opposing steel columns of a factory building, characterized in that: Several sets of support plates are arranged longitudinally opposite each other on the steel columns of the two factory buildings. Each set of support plates is equipped with a cable tray. A cantilever assembly is vertically installed on the upper part of the steel columns of the factory buildings. A support plate mechanism is installed in the middle section of the cable tray to support the bottom of the cable tray. The support plate mechanism is connected to the cantilever assembly on both sides.

2. The long-span multi-layer cable tray installation structure according to claim 1, characterized in that: The cantilever assembly includes a cantilever beam that is vertically fixed to the upper part of the steel columns of the plant.

3. The long-span multi-layer cable tray installation structure according to claim 2, characterized in that: The support frame includes a support frame with open sides. Several horizontal plates are installed inside the support frame. The number of horizontal plates is equal to the number of cable trays. The horizontal plates are supported on the bottom surface of the middle section of the cable tray. A top plate is installed on the top of the support frame. Two sets of lower lifting rings are symmetrically arranged on both sides of the top plate. Two upper lifting rings are arranged along the length of the bottom of the cantilever beam. Galvanized steel wire ropes are connected between the upper lifting rings and the lower lifting rings on the same side.

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