Civil engineering foundation structure box girder for insulating installation of platform door

Abstract

The utility model relates to a civil engineering foundation structure box girder for insulating installation of a platform door, which belongs to the field of road traffic platform doors and adopts the technical scheme that the civil engineering foundation structure box girder comprises a box girder body, a cavity is formed in the middle of the box girder body, a plurality of groups of arc-shaped pre-buried plates are fixedly arranged below the box girder body, a pre-buried channel is arranged above the box girder body, and the arc-shaped pre-buried plates are arranged in the cavity. The pre-buried channel is arranged in the length direction of the box body beam body, an insulating pre-buried bolt assembly is arranged on the side, close to a platform door, of the outer side of the box body beam body, the box body beam is more reasonable in design, the pre-buried channel and the water outlet are additionally arranged, the field installation process is simplified, and the installation efficiency and the isolation performance are improved.

Description

Technical Field

[0001] The utility model belongs to the field of road traffic platform doors, and in particular relates to a civil construction foundation structure box beam used for insulating and installing platform doors. Background Art

[0002] Most of the existing subway trains use a DC power supply mode. In this power supply mode, in order to prevent stray current from electrochemically corroding underground pipelines and steel structures in station buildings, the train running rails, which also serve as return rails, are insulated from the ground. There may be a potential difference between the running rails and the ground, so there is a potential difference between the platform door and the train that poses a safety hazard to passengers. If a passenger touches the platform door and the train door at the same time, it may cause safety damage. Therefore, the platform door and the train rails are connected to the same potential. In order to avoid electrochemical corrosion of civil steel bars by stray current and consider passenger safety, the platform door body needs to be insulated and an insulating layer should be laid within a range of no less than 900mm in the adjacent passenger waiting area. The insulation scheme of the platform door is theoretically no problem. Although the insulation value of some lines can meet the specification requirement of no less than 0.5MΩ before the subway is put into operation, with the subsequent continuous operation, the platform door insulation is completely ineffective due to the complex external and man-made environment of the subway station. After the insulation failure of the platform door, the platform door needs to be disconnected from the rail, which makes it impossible to solve the potential potential difference problem between the platform door and the train.

[0003] In order to change this situation, the applicant has designed a method of civil foundation insulation. Box beams, insulating supports and support columns are used to insulate the platform doors and waiting areas from the station ground as a whole, providing passengers with a safer and fully insulated waiting platform, greatly reducing insulation failure points, and after implementation, it will not be affected by on-site construction and the human environment.

[0004] There are still some problems in the use of box beams: 1. The connection device for fixing the platform door needs to be drilled or grooved on site for installation, which increases the time of on-site operations and affects the progress of on-site construction; 2. There is no reserved drainage hole on the platform board of the box beam, and only 10-15mm insulation split seams are reserved between the box beam and the surrounding platform boards, and the edges have been glued and sealed, so the clean sewage on the platform board cannot be quickly discharged, forming a stain-conducting insulation split seam. In addition, sewage will also pollute the bottom of the platform door, affecting the appearance and anti-corrosion performance. 3. The cables of the semi-high platform door can only be laid in the way of lower inlet and lower outlet. The existing box beam solution is to run the wires in the box cavity, which is very inconvenient to construct, and it is difficult to repair once it is damaged by animals. Utility Model Content

[0005] In view of the problems existing in the insulation of the door body and the insulation layer of the existing platform door, the utility model proposes a civil foundation structure box beam for the insulation installation of the platform door. The design of the structural box beam is more reasonable, and pre-buried grooves and drainage outlets are added to simplify the on-site installation process, thereby improving the installation efficiency and electrical insulation isolation performance.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a box beam of a civil foundation structure for insulating and installing a platform door, comprising a box beam body, the middle part of the box beam body is a cavity, a plurality of groups of arc-shaped embedded plates are fixedly arranged below the box beam body, an embedded groove is arranged above the box beam body, the embedded groove is arranged along the length direction of the box beam body, and an insulating embedded bolt assembly is arranged on the outer side of the box beam body close to the platform door.

[0007] Furthermore, a cable bracket is fixedly provided on the insulating embedded bolt assembly.

[0008] Furthermore, an insulating dividing seam is provided between the box beam body and the platform slab in the non-insulated area of ​​the platform.

[0009] Furthermore, drainage holes are arranged at intervals on the box beam body, drainage pipes are arranged in the drainage holes, and the drainage pipes extend to the floor tile layer and the concrete cushion layer above the box beam body and are connected to the floor drain.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a pre-buried groove on the upper surface of the box beam body, and the base of the platform door slide rail can be quickly fixed by using the pre-buried groove, without the need for on-site drilling or grooving, which greatly speeds up the on-site construction.

[0011] In addition, drainage holes are arranged at intervals on the box beam body, and drainage pipes and floor drains are arranged at the drainage holes. In this way, the water on the decoration layer above the box beam body can be drained to the drainage ditch under the platform plate through the floor drain and drainage pipe, preventing the water from spreading and contaminating the insulation separation seam between the box beam and the surrounding area, causing the insulation of the box beam to fail. At the same time, it also prevents sewage from spreading and contaminating the appearance and corrosion performance of the bottom of the platform door.

[0012] In addition, the utility model reserves installation foundation conditions and maintenance space for the cable laying of the semi-high platform door, and the operation can be completed on the track side. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] In the figure, 1 is the box beam body, 2 is the cavity, 3 is the embedded groove, 4 is the arc embedded plate, 5 is the insulating embedded bolt assembly, 6 is the cable bracket, 7 is the concrete cushion layer, 8 is the floor tile layer, 9 is the drainage pipe, 10 is the floor drain, and 11 is the insulating dividing seam. DETAILED DESCRIPTION

[0016] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects.

[0017] A box beam of a civil engineering foundation structure for insulating and installing a platform door comprises a box beam body 1, wherein the middle part of the box beam body 1 is a cavity 2, wherein the cavity 2 reduces the weight of the entire beam body while ensuring the strength of the entire beam body, and also reduces the cost of concrete materials. An embedded groove 3 is preset above the box beam body 1, and the embedded groove 3 is arranged along the length direction of the box beam body 1. A base for fixing a platform door slide rail is installed in the embedded groove 3, and the slide rail can be installed on the base, and the platform door is connected to the slide rail, so that the platform door is installed on the box beam body 1.

[0018] A plurality of arc-shaped embedded plates 4 are fixedly arranged below the box beam body 1, and the plurality of arc-shaped embedded plates 4 are used to be connected with the insulating support, and a support column is arranged below the insulating support, thus forming the entire civil engineering foundation insulation structure. The utility model mainly protects the structure of the box beam, so the working principle of the entire civil engineering foundation insulation structure is not described here.

[0019] An insulating embedded bolt assembly 5 is provided on the outer side of the box beam body 1 near the platform door, and a cable bracket 6 is fixedly provided on the insulating embedded bolt assembly 5. The cable bracket 6 is later used for on-site wiring installation. The insulating embedded bolt assembly 5 uses an insulating bushing to insulate and separate the metal bracket and the box beam embedded part, so as to prevent the box beam from being electrified due to cable damage and endangering the safety of passengers.

[0020] The box beam of the civil foundation structure of the utility model is connected by prefabricated concrete splicing, so an insulating split seam 11 is provided between adjacent box beam bodies 1 and between the box beam body 1 and the platform slab in the non-insulated area of ​​the platform. The insulating split seam 11 isolates the entire platform area into multiple small insulating areas, which is convenient for troubleshooting insulation problems. Moreover, later inspection and maintenance can be carried out in different areas, which improves work efficiency.

[0021] In addition, a concrete cushion layer 7 and a floor tile layer 8 are provided above the main body of the box beam as a decoration layer. Drain holes are pre-set on the main body 1 of the box beam at intervals, and a drainage pipe 9 is installed in the drainage hole on site. The drainage pipe 9 extends to the decoration layer above the main body 1 of the box beam and is connected to the floor drain 10. The water in the decoration layer enters the drainage pipe 9 through the floor drain 10 and is discharged to the ground, avoiding leakage into the insulating support or the insulating separation seam, which causes electrical isolation failure.

[0022] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A box beam of a civil construction foundation structure for the insulation installation of a platform door, characterized in that: The invention comprises a box beam body (1), the middle part of the box beam body (1) is a cavity (2), a plurality of groups of arc-shaped embedded plates (4) are fixedly arranged below the box beam body (1), an embedded groove (3) is arranged above the box beam body (1), the embedded groove (3) is arranged along the length direction of the box beam body (1), and an insulating embedded bolt assembly (5) is arranged on the outer side of the box beam body (1) near the platform door.

2. The civil construction foundation structure box beam for platform door insulation installation according to claim 1, characterized in that: A cable bracket (6) is fixedly arranged on the insulating embedded bolt assembly (5).

3. The civil construction foundation structure box beam for platform door insulation installation according to claim 1, characterized in that: An insulating dividing seam (11) is provided between the box beam body (1) and the platform slab in the non-insulated area of ​​the platform.

4. The civil construction foundation structure box beam for platform door insulation installation according to claim 1, characterized in that: Drain holes are arranged at intervals on the box beam body (1), and drainage pipes (9) are arranged in the drainage holes. The drainage pipes (9) extend into the floor tile layer (8) and the concrete cushion layer (7) above the box beam body (1) and are connected to a floor drain (10).

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