Prestressed middle plate structure of subway station

Abstract

The utility model provides a prestressed middle plate structure of subway station, including the plate body, the plate body is provided with the embedded reinforcing bar spare, still include: truss steel pipe, the truss steel pipe is installed in the top of plate body, the spigot and socket is set up in the plate body inside, and the bottom port of spigot and socket is fixedly connected with embedded reinforcing bar spare, the top port of spigot and socket is flush with the top surface of plate body, the ring assembly is provided with the positioning spigot and socket part, and the ring assembly passes through positioning spigot and socket part and spigot and socket can detachable installation. Through setting up detachable ring assembly, play convenient handling hoisting at the same time, after the whole prestressed middle plate installation, can conveniently remove and can reuse ring assembly.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, specifically to a prestressed slab structure for a subway station. Background Technology

[0002] Prestressed slabs are precast components widely used in building construction. They are characterized by high load-bearing capacity, large span, good seismic performance, and high construction efficiency, and are suitable for bridge engineering, subway station construction, and other fields.

[0003] As a precast component, the prestressed intermediate slab is equipped with hanging rings and hooks on its top for easy handling. These hanging rings and hooks are generally welded to the embedded steel bars in the slab and protrude from the top of the slab. After the entire prestressed intermediate slab is used, the hanging rings and hooks on the top can only be removed by force, which is inconvenient. Moreover, after removal, they can only be disposed of as waste materials, lacking a design for reuse. Utility Model Content

[0004] This utility model provides a prestressed slab structure for subway stations to solve the technical problems of inconvenient removal and reuse of hanging rings.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a prestressed slab structure for a subway station, including a slab body; embedded steel bars are provided inside the slab body; it also includes: a truss steel pipe installed on the top of the slab body; a plug-in tube disposed inside the slab body, with its bottom end fixedly connected to the embedded steel bars; its top end flush with the top surface of the slab body; and a hanging ring assembly with a positioning plug-in part, which is detachably installed and disconnected from the plug-in tube.

[0007] In this technical solution, by setting up a detachable hanging ring assembly, it not only facilitates handling and hoisting, but also allows for easy removal and reuse of the hanging ring assembly after the entire prestressed slab is installed.

[0008] Preferably, a single hanging ring assembly is connected to two plug-in cylinders, and one side of each plug-in cylinder is fixedly connected to multiple positioning cylinders.

[0009] In this technical solution, the plug-in cylinder provides a plug-in installation position for the positioning plug-in part, while the positioning cylinder is used for positioning and locking.

[0010] Preferably, each of the hanging ring assemblies is provided with two positioning insertion parts, each positioning insertion part including a vertical rod; a plurality of positioning pins for insertion into the positioning cylinder are fixedly installed on one side of the vertical rod, and a side plate is elastically connected to the other side of the vertical rod by a spring.

[0011] In this technical solution, after the positioning connector is inserted, it is locked to the positioning cylinder by the positioning post, thereby realizing the installation and fixation of the hanging ring assembly.

[0012] Preferably, a plurality of springs are provided between the vertical rod and the side plate, and the two ends of the springs are fixedly connected to the vertical rod and the side plate respectively.

[0013] Preferably, the hanging ring assembly includes a semi-circular ring body; both ends of the ring body are fixedly connected to a base plate, and the bottom surface of the base plate is fixedly connected to the top end of the vertical rod of the positioning insertion part.

[0014] In this technical solution, the ring provides a position for hoisting and suspension.

[0015] Preferably, a guide hole is provided on the side wall of the vertical rod, the guide hole extends into the positioning post, the guide hole is clearance-fitted with a guide post, and one end of the guide post is fixedly connected to the side plate.

[0016] In this technical solution, the guide hole and guide post provide guidance for the side plate to move closer to or away from the vertical rod.

[0017] Preferably, the height of the bottom end of the side plate is lower than the height of the bottom end of the vertical rod.

[0018] Preferably, a sealing gasket is fixedly installed on the bottom edge of the base plate, and the sealing gasket is in contact with the top surface of the plug-in cylinder.

[0019] Preferably, both sides of the truss steel pipe are connected with multiple equally spaced connecting ribs, which are fixedly connected to the plate.

[0020] Preferably, the plate is provided with a plurality of prestressed tendons.

[0021] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0022] The positive and progressive effects of this utility model are as follows:

[0023] The aforementioned prestressed slab structure for a subway station features a hanging ring assembly on top, which facilitates handling and hoisting. The hanging ring assembly includes a positioning plug-in part and a plug-in cylinder fixed to the pre-embedded reinforcing steel in the slab. Through the detachable connection design between the positioning plug-in part and the plug-in cylinder, the hanging ring assembly can be easily removed after the entire prestressed slab is installed and used, and the removal process does not require any forceful operation. After removal, the hanging ring assembly can be reused. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a front view of the entire utility model.

[0026] Figure 3 This is a schematic diagram of the connection between the hanging ring assembly and the plug-in cylinder of this utility model.

[0027] Figure 4 This is a structural diagram of the hanging ring assembly and the plug-in cylinder of this utility model in their disassembled state.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Plate; 101. Embedded steel reinforcement; 102. Inserted sleeve; 103. Positioning sleeve; 2. Prestressed tendon; 3. Truss steel pipe; 4. Connecting reinforcement; 5. Hanging ring assembly; 501. Ring body; 502. Base plate; 503. Sealing gasket; 504. Vertical rod; 505. Positioning column; 506. Guide hole; 507. Guide column; 508. Side plate; 509. Spring. Detailed Implementation

[0030] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0031] like Figure 1-4 As shown, a prestressed slab structure for a subway station includes a slab body 1; embedded reinforcing bars 101 are installed within the slab body 1; it also includes: a truss steel pipe 3, which is installed on the top of the slab body 1; a plug-in tube 102, which is disposed inside the slab body 1, and its bottom end is fixedly connected to the embedded reinforcing bars 101; the top end of the plug-in tube 102 is flush with the top surface of the slab body 1; and a hanging ring assembly 5, which has a positioning plug-in part and is detachably installed to the plug-in tube 102 through the positioning plug-in part. Multiple equally spaced connecting bars 4 are connected to both sides of the truss steel pipe 3, and the connecting bars 4 are fixedly connected to the slab body 1. Multiple prestressed tendons 2 are provided on the slab body 1.

[0032] The plug-in tube 102 is welded together with the pre-embedded steel bar 101 to form a whole. At the same time, the bottom end of the plug-in tube 102 is connected to the pre-embedded steel bar 101, so that the bottom end of the plug-in tube 102 is closed.

[0033] When making the prestressed intermediate plate, the top of the plug-in cylinder 102 is sealed with an external plug (the plug is set to prevent concrete slurry from entering the plug-in cylinder 102), and then concrete is poured through the mold to form the plate body 1 on the pre-embedded steel bar 101; then the truss steel pipe 3 is welded on the connecting bar 4 to complete the production of the prestressed intermediate plate. After production, the hanging ring assembly 5 is installed.

[0034] like Figure 3-4 As shown, a single hanging ring assembly 5 is connected to two insertion cylinders 102, and one side of each insertion cylinder 102 is fixedly connected to multiple positioning cylinders 103. Each hanging ring assembly 5 has two positioning insertion parts, each including a vertical rod 504; one side of the vertical rod 504 is fixedly equipped with multiple positioning posts 505 for insertion into the positioning cylinders 103, and the other side of the vertical rod 504 is elastically connected to a side plate 508 via springs 509. Multiple springs 509 are provided between the vertical rod 504 and the side plate 508, and both ends of the springs 509 are fixedly connected to the vertical rod 504 and the side plate 508 respectively. The hanging ring assembly 5 includes a semi-circular ring body 501; both ends of the ring body 501 are fixedly connected to a base plate 502, and the bottom surface of the base plate 502 is fixedly connected to the top end of the vertical rod 504 of the positioning insertion part. A guide hole 506 is provided on the side wall of the vertical rod 504, extending into the positioning post 505. A guide post 507 is connected to the guide hole 506 with a clearance fit, and one end of the guide post 507 is fixedly connected to the side plate 508. The bottom end of the side plate 508 is lower than the bottom end of the vertical rod 504. A sealing washer 503 is fixedly installed on the bottom edge of the bottom plate 502, and the sealing washer 503 is in contact with the top surface of the insertion cylinder 102.

[0035] When installing the hanging ring assembly 5, first remove the plug at the top of the connector 102 to expose the top of the connector 102. Then install the hanging ring assembly 5 by holding the ring body 501 with one hand, bringing the vertical rod 504 and the side plate 508 close to the top of the connector 102, with the bottom of the side plate 508 lower than the bottom of the vertical rod 504. Thus, after the side plate 508 enters the top of the connector 102, the vertical rod 504 does not enter the top of the connector 102. Figure 4 As shown; then push the ring 501 to the left, while the side plate 508 is blocked by the inner wall of the insertion cylinder 102 and cannot move. Thus, the ring 501 drives the vertical rod 504 closer to the side plate 508 and compresses the spring 509 until the spring 509 is fully compressed. After the end of the positioning post 505 away from the side plate 508 is flush with the right inner wall of the insertion cylinder 102, push the ring 501 downward, so that the vertical rod 504, the side plate 508, and the structure on the side plate 508 and the vertical rod 504 are inserted into the insertion cylinder 102 together until the sealing gasket 503 abuts against the top of the insertion cylinder 102. At this time, the positioning post 505 is aligned with the positioning cylinder 103. Release the ring 501, and through the elastic force of the spring 509, move the vertical rod 504 away from the side plate 508, so that the positioning post 505 is inserted into the positioning cylinder 103 for locking. The installation of the hanging ring assembly 5 is completed. After installation, as shown Figure 3 As shown.

[0036] After the hanging ring assembly 5 is installed, it can be hoisted and transported via the ring body 501. When removing the hanging ring assembly 5 after the entire prestressed slab has been installed, by pushing the ring body 501 to the left, the ring body 501 moves the vertical rod 504 and the positioning post 505 to the left together. The positioning post 505 separates from the positioning cylinder 103, and the compressed spring 509 is maintained in this state. Then, the ring body 501 is pulled upwards, causing the ring body 501 to move the vertical rod 504 and the side plate 508 away from the insertion cylinder 102. Afterwards, the elastic force of the spring 509 returns the side plate 508 and the vertical rod 504 to their original positions. Figure 4 The state.

[0037] The hanging ring assembly 5 is designed to be easy to install and remove, and adopts a non-violent disassembly and assembly method, making the hanging ring assembly 5 reusable.

[0038] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A prestressed slab structure for a subway station, comprising a slab (1); wherein embedded reinforcing bars (101) are provided within the slab (1); characterized in that, Also includes: Truss steel pipe (3), said truss steel pipe (3) is installed on the top of said plate (1); Insertion tube (102), the insertion tube (102) is disposed inside the plate (1), and the bottom end of the insertion tube (102) is fixedly connected to the pre-embedded steel bar (101); The top end of the plug tube (102) is flush with the top surface of the plate (1); The hanging ring assembly (5) is provided with a positioning insertion part, and the hanging ring assembly (5) can be detachably installed with the insertion cylinder (102) through the positioning insertion part.

2. The prestressed slab structure for a subway station as described in claim 1, characterized in that: Each of the hanging ring assemblies (5) is connected to two plug tubes (102), and one side of each plug tube (102) is fixedly connected to multiple positioning tubes (103).

3. The prestressed slab structure for a subway station as described in claim 2, characterized in that: Each of the hanging ring assemblies (5) is provided with two positioning insertion parts, each positioning insertion part including a vertical rod (504); a plurality of positioning pins (505) for insertion into the positioning cylinder (103) are fixedly installed on one side of the vertical rod (504), and a side plate (508) is elastically connected to the other side of the vertical rod (504) by a spring (509).

4. The prestressed slab structure for a subway station as described in claim 3, characterized in that: Multiple springs (509) are provided between the vertical rod (504) and the side plate (508), and the two ends of the springs (509) are fixedly connected to the vertical rod (504) and the side plate (508) respectively.

5. The prestressed slab structure for a subway station as described in claim 3, characterized in that: The hanging ring assembly (5) includes a semi-circular ring (501); both ends of the ring (501) are fixedly connected to a base plate (502), and the bottom surface of the base plate (502) is fixedly connected to the top end of the vertical rod (504) of the positioning insertion part.

6. The prestressed slab structure for a subway station as described in claim 3, characterized in that: The vertical rod (504) has a guide hole (506) on its side wall. The guide hole (506) extends into the positioning post (505). The guide hole (506) is connected to the guide post (507) with a clearance fit. One end of the guide post (507) is fixedly connected to the side plate (508).

7. A prestressed slab structure for a subway station as described in claim 3, characterized in that: The height of the bottom end of the side plate (508) is lower than the height of the bottom end of the vertical rod (504).

8. A prestressed slab structure for a subway station as described in claim 5, characterized in that: A sealing gasket (503) is fixedly installed on the bottom edge of the base plate (502), and the sealing gasket (503) is in contact with the top surface of the plug tube (102).

9. A prestressed slab structure for a subway station as described in claim 1, characterized in that: Both sides of the truss steel pipe (3) are connected with multiple equally spaced connecting ribs (4), and the connecting ribs (4) are fixedly connected to the plate (1).

10. A prestressed slab structure for a subway station as described in claim 1, characterized in that: The plate (1) is provided with a plurality of prestressed tendons (2).

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