A connecting structure between prefabricated steel trestle plates on a deep foundation pit support beam

Abstract

This utility model discloses a connection structure between prefabricated steel trestle plates on a support beam for deep foundation pits. It includes a support beam, with prefabricated steel trestle plates placed on top of the support beam. A connecting plate is bolted to the bottom of the prefabricated steel trestle plates, and a reinforcing plate is fixedly connected to the middle of the outer surface of the connecting plate. A protective layer is provided on the surface of the connecting plate, and a noise reduction layer is provided on the other side of the protective layer. The protective layer includes a tungsten carbide coating and a nano-chromium oxide coating, and the noise reduction layer includes a glass wool layer and a rock wool layer. The tungsten carbide coating is applied to the surface of the connecting plate, and the nano-chromium oxide coating is applied to the other side of the tungsten carbide coating. This utility model incorporates a noise reduction layer, where the rock wool layer provides a first layer of noise reduction at the connection, and the glass wool layer provides a second layer of noise reduction after the rock wool layer is damaged, thereby effectively reducing the probability of abnormal noise at the connection.

Description

Technical Field

[0001] This utility model relates to the field of deep foundation pit technology, specifically to a connection structure between prefabricated steel trestle plates on a deep foundation pit support beam. Background Technology

[0002] Deep foundation pits refer to projects with an excavation depth exceeding 5 meters (including 5 meters), or projects with particularly complex geological conditions, surrounding environment, and underground pipelines even if the depth does not exceed 5 meters. In order to facilitate people's work in deep foundation pits, prefabricated steel trestle plates need to be laid on the support beams. However, the existing connection structure lacks a noise reduction mechanism, which makes it easy for abnormal noises to occur at the connection. Therefore, we propose a connection structure between prefabricated steel trestle plates on the support beams of deep foundation pits. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure between prefabricated steel trestle plates on a deep foundation pit support beam, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between prefabricated steel trestle plates on a deep foundation pit support beam, including a support beam, a prefabricated steel trestle plate placed on the top of the support beam, a connecting plate connected to the bottom of the prefabricated steel trestle plate by bolts, and a reinforcing plate fixedly connected to the middle of the outer surface of the connecting plate, a protective layer provided on the surface of the connecting plate, and a noise reduction layer provided on the other side of the protective layer.

[0005] Preferably, the protective layer includes a tungsten carbide coating and a nano-chromium oxide coating, and the noise reduction layer includes a glass wool layer and a rock wool layer.

[0006] Preferably, the tungsten carbide coating is applied to the surface of the connecting plate, and the nano-chromium oxide coating is applied to the other side of the tungsten carbide coating.

[0007] Preferably, the glass wool layer is connected to the other side of the nano-chromium oxide coating with PP adhesive, and the rock wool layer is connected to the other side of the glass wool layer with PP adhesive.

[0008] Preferably, the tungsten carbide coating and the nano-chromium oxide coating have the same thickness, and the glass wool layer and the rock wool layer have the same thickness.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model is equipped with a noise reduction layer, which includes a rock wool layer that can perform a first layer of noise reduction treatment at the joint, and a glass wool layer that can perform a second layer of noise reduction treatment at the joint after the rock wool layer is damaged, thereby effectively reducing the probability of abnormal noise at the joint.

[0011] 2. This utility model is provided with a protective layer, which includes a nano-chromium oxide coating that can provide the first layer of wear-resistant protection to the connecting plate after the glass wool layer is damaged, and a tungsten carbide coating that can provide the second layer of wear-resistant protection to the connecting plate after the nano-chromium oxide coating is damaged, thereby effectively improving the service life of the connecting plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the connection between the protective layer and the noise reduction layer of this utility model and the connecting plate;

[0014] Figure 3 This is a schematic diagram of the protective layer structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the noise reduction layer structure of this utility model.

[0016] In the diagram: 1. Precast steel trestle plate; 2. Reinforcing plate; 3. Bolt; 4. Connecting plate; 5. Support beam; 6. Protective layer; 6. Tungsten carbide coating; 61. Nano chromium oxide coating; 62. Noise reduction layer; 7. Glass wool layer; 71. Rock wool layer; 72. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The components of this application, including the prefabricated steel trestle slab 1, reinforcing plate 2, bolt 3, connecting plate 4, supporting beam 5, protective layer 6, tungsten carbide coating 61, nano chromium oxide coating 62, noise reduction layer 7, glass wool layer 71, and rock wool layer 72, are all general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0019] Please see Figures 1-4A connection structure between prefabricated steel trestle plates on a deep foundation pit support beam includes a support beam 5, a prefabricated steel trestle plate 1 placed on top of the support beam 5, a connecting plate 4 connected to the bottom of the prefabricated steel trestle plate 1 by bolts 3, and a reinforcing plate 2 fixedly connected to the middle of the outer surface of the connecting plate 4. A protective layer 6 is provided on the surface of the connecting plate 4. The protective layer 6 includes a nano-chromium oxide coating 62, which can provide a first layer of wear-resistant protection for the connecting plate 4 after the glass wool layer 71 is damaged, and a tungsten carbide coating 61, which can provide a second layer of wear-resistant protection for the connecting plate 4 after the nano-chromium oxide coating 62 is damaged, thereby effectively improving the service life of the connecting plate 4. A noise reduction layer 7 is provided on the other side of the protective layer 6. The noise reduction layer 7 includes a rock wool layer 72, which can provide a first layer of noise reduction at the connection, and a glass wool layer 71, which can provide a second layer of noise reduction at the connection after the rock wool layer 72 is damaged, thereby effectively reducing the probability of abnormal noise at the connection.

[0020] The protective layer 6 includes a tungsten carbide coating 61 and a nano-chromium oxide coating 62, and the noise reduction layer 7 includes a glass wool layer 71 and a rock wool layer 72. The tungsten carbide coating 61 is applied to the surface of the connecting plate 4, and the nano-chromium oxide coating 62 is applied to the other side of the tungsten carbide coating 61. The glass wool layer 71 is connected to the other side of the nano-chromium oxide coating 62 with PP glue, and the rock wool layer 72 is connected to the other side of the glass wool layer 71 with PP glue. The tungsten carbide coating 61 and the nano-chromium oxide coating 62 have the same thickness, and the glass wool layer 71 and the rock wool layer 72 have the same thickness.

[0021] The working principle of this application is as follows: a noise reduction layer 7 is provided, which includes a rock wool layer 72 that can provide a first layer of noise reduction treatment at the connection, and a glass wool layer 71 that can provide a second layer of noise reduction treatment at the connection after the rock wool layer 72 is damaged, thereby effectively reducing the probability of abnormal noise at the connection. A protective layer 6 is provided, which includes a nano chromium oxide coating 62 that can provide a first layer of wear-resistant protection treatment for the connecting plate 4 after the glass wool layer 71 is damaged, and a tungsten carbide coating 61 that can provide a second layer of wear-resistant protection treatment for the connecting plate 4 after the nano chromium oxide coating 62 is damaged, thereby effectively improving the service life of the connecting plate 4.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure between prefabricated steel trestle plates on a deep foundation pit support beam, comprising a support beam (5), characterized in that: The top of the support beam (5) is provided with a prefabricated steel trestle plate (1), and the bottom of the prefabricated steel trestle plate (1) is connected to a connecting plate (4) by bolts (3). A reinforcing plate (2) is fixedly connected to the middle of the outer surface of the connecting plate (4). A protective layer (6) is provided on the surface of the connecting plate (4), and a noise reduction layer (7) is provided on the other side of the protective layer (6).

2. The connecting structure between prefabricated steel trestle plates on a deep foundation pit support beam according to claim 1, characterized in that: The protective layer (6) includes a tungsten carbide coating (61) and a nano-chromium oxide coating (62), and the noise reduction layer (7) includes a glass wool layer (71) and a rock wool layer (72).

3. The connecting structure between prefabricated steel trestle plates on a deep foundation pit support beam according to claim 2, characterized in that: The tungsten carbide coating (61) is applied to the surface of the connecting plate (4), and the nano chromium oxide coating (62) is applied to the other side of the tungsten carbide coating (61).

4. The connecting structure between prefabricated steel trestle plates on a deep foundation pit support beam according to claim 2, characterized in that: The glass wool layer (71) is connected to the other side of the nano chromium oxide coating (62) by PP glue, and the rock wool layer (72) is connected to the other side of the glass wool layer (71) by PP glue.

5. The connecting structure between prefabricated steel trestle plates on a deep foundation pit support beam according to claim 2, characterized in that: The tungsten carbide coating (61) and the nano-chromium oxide coating (62) have the same thickness, and the glass wool layer (71) and the rock wool layer (72) have the same thickness.

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