Rail transit precast beam plate structure with damping layer

Abstract

The utility model discloses a rail transit precast beam plate structure with a shock absorption layer, relates to the field of rail transit, solves the problem that the existing device is difficult to efficiently absorb shock transmitted by a rail according to requirements, and adopts the following scheme that the rail transit precast beam plate structure comprises a precast beam component; the precast beam component comprises a precast beam seat and a precast beam plate clamped on the top side of the precast beam seat, the precast beam seat is an inverted-table-shaped seat, a U-shaped groove is formed in the top side of the precast beam seat, and a second damping belt is clamped in the U-shaped groove in the precast beam seat; according to the rail transit precast beam plate structure with the damping layer, through the arrangement of the first damping belt and the second damping belt in the precast beam component, when the rail transit precast beam plate structure is vibrated, and when a precast beam plate at the top of the precast beam component is vibrated, the vibration is transmitted downwards to a precast beam base on the bottom side through the second damping belt; the second damping belt counteracts the vibration, and meanwhile the first damping belt is used for further counteracting the vibration borne by the precast beam base from the inner side.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to a precast beam-slab structure for rail transit with a shock-absorbing layer. Background Technology

[0002] Precast U-shaped beams for urban rail transit are a new product evolved from channel beams in urban rail transit. They are a type of bottom-bearing open thin-walled structure. Trains run on the rail support platform of the bottom plate and are wrapped inside the U-shaped beams. They not only have the structural characteristics and mechanical properties of general channel beams, but also have the characteristics of being environmentally friendly, having good architectural and landscape adaptability, low construction and operation costs throughout the entire life cycle, and high-efficiency system integration.

[0003] A search revealed that patent application number 202323530510.3 discloses a precast steel template for U-shaped beams in rail transit, including a support base. The outer mold of the U-shaped beam is provided with an outer mold stabilizing support component on its side for limiting and fixing the outer mold. The inner mold of the U-shaped beam is provided with an inner mold stabilizing support component on its top. This invention, by providing an outer mold stabilizing support component and an inner mold stabilizing support component on the template forming chamber, wherein the limiting block in the outer mold stabilizing support component can basically limit the bottom end of the U-shaped beam precast outer mold, ensuring the installation stability between the U-shaped beam precast outer mold and the U-shaped beam precast inner mold. This effectively avoids tilting of the U-shaped beam precast outer mold or U-shaped beam precast inner mold during material feeding and molding, ensuring that the formed U-shaped beam has uniform thickness, better quality, and is convenient for users.

[0004] The aforementioned application documents can ensure stable support through the setting of each component, but all of them are rigid components. When a train moves on the track, it generates a lot of vibration due to its drive. The vibration reduction effect of rigid precast beams is limited, and long-term vibration may damage the entire precast beam and affect its service life.

[0005] Therefore, we propose a precast beam-slab structure for rail transit with a damping layer. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a precast beam-slab structure for rail transit with a damping layer, which solves the problem that existing devices are unable to efficiently dampen vibrations transmitted by the track according to requirements.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a precast beam-slab structure for rail transit with a shock-absorbing layer, comprising a precast beam component, wherein two sets of sleepers are fastened to the top of the precast beam component, and steel rails are mounted on the two sets of sleepers;

[0008] The precast beam component includes a precast beam seat and a precast beam slab clamped on its top side. The precast beam seat is an inverted platform-shaped seat. A U-shaped groove is provided on the top side of the precast beam seat. A second damping strip is clamped in the U-shaped groove of the precast beam seat, and the top side of the second damping strip contacts the bottom surface of the precast beam slab.

[0009] As a preferred embodiment of this utility model, the precast beam seat is provided with a U-shaped through groove that runs from front to back, and a first shock-absorbing strip is press-fitted into the U-shaped through groove.

[0010] The first damping strip is designed to receive the wave-like vibration when the precast beam seat is subjected to the transmitted vibration, thereby damping the precast beam seat from the inside and ensuring the initial damping effect.

[0011] As a preferred embodiment of this utility model, the bottom surface of the U-shaped groove on the top side of the precast beam seat is provided with a lower clamping groove distributed at intervals, and the bottom of the second shock-absorbing strip is fixedly installed with a lower clamping seat that matches the position and specifications of the lower clamping groove.

[0012] The design of the lower slot and the bottom lower seat ensures proper clamping during the installation of the second shock-absorbing strip.

[0013] As a preferred embodiment of this utility model, the bottom of the precast beam is fixedly installed with upper brackets distributed at intervals, and the top of the second shock absorber is provided with an upper slot that matches the specifications of the upper brackets.

[0014] The upper slot and upper seat are designed to allow the upper seat to engage with the upper slot at the top of the second damping strip during the installation of the precast beam, thus ensuring the effective clamping and limiting effect. At the same time, it ensures the contact area between the second damping strip and the precast beam seat and the precast beam.

[0015] As a preferred embodiment of this utility model, the top of both sides of the precast beam seat is provided with a pressing part, and the bottom sides of the precast beam plate are provided with a side groove, and the precast beam plate is pressed onto the pressing parts at both ends of the precast beam seat through the side groove.

[0016] The use of precast beams and slabs ensures the pressing effect between them and the precast beam base.

[0017] As a preferred embodiment of this utility model, the precast beam seat has spaced fastening bolt grooves on both sides of the top, and the precast beam plate is provided with screw holes located on the top side of the fastening bolt grooves on the top of the precast beam seat, and the screw holes and fastening bolt grooves are assembled by fastening bolts.

[0018] The fastening bolts are designed to secure the precast beams to the top of both sides of the precast beam base, ensuring the overall stability of the precast beam components.

[0019] This utility model provides a precast beam-slab structure for rail transit with a damping layer. It possesses the following characteristics:

[0020] Beneficial effects:

[0021] This precast beam-slab structure for rail transit with a damping layer, through the installation of a first damping strip and a second damping strip in the precast beam component, can, when the precast beam slab at the top of the precast beam component is subjected to vibration, transmit the vibration downward through the second damping strip to the precast beam seat at the bottom, where the vibration is offset by the second damping strip. At the same time, the first damping strip further offsets the vibration received by the precast beam seat from the inside, thus solving the problem that existing devices are unable to efficiently dampen the vibration transmitted by the track according to the requirements. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the precast beam seat of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the precast beam slab of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the second shock-absorbing strip of this utility model.

[0026] In the diagram: 1. Precast beam component; 2. Rail; 3. Sleeper; 11. Precast beam seat; 111. Lower slot; 12. Precast beam slab; 121. Upper seat; 122. Side groove; 13. First damping strip; 14. Second damping strip; 141. Lower seat; 142. Upper slot. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-4This utility model provides a technical solution: a precast beam-slab structure for rail transit with a shock-absorbing layer, including a precast beam component 1, with two sets of sleepers 3 arranged and distributed on the top of the precast beam component 1, and rails 2 mounted on the two sets of sleepers 3; the precast beam component 1 includes a precast beam seat 11 and a precast beam slab 12 clamped on its top side, the precast beam seat 11 is an inverted platform-shaped seat, a U-shaped groove is provided on the top side of the precast beam seat 11, a second shock-absorbing strip 14 is clamped in the U-shaped groove of the precast beam seat 11, and the top side of the second shock-absorbing strip 14 contacts the bottom surface of the precast beam slab 12;

[0029] The precast beam-slab structure for rail transit with a damping layer, through the setting of the first damping belt 13 and the second damping belt 14 in the precast beam component 1, can, when it is subjected to vibration, when the precast beam slab 12 at the top of the precast beam component 1 is subjected to vibration, the vibration is transmitted downward through the second damping belt 14 to the precast beam seat 11 at the bottom, where the vibration is offset by the second damping belt 14. At the same time, the first damping belt 13 further offsets the vibration received by the precast beam seat 11 from the inside, thus solving the problem that existing devices are difficult to efficiently dampen the vibration transmitted by the track according to the requirements.

[0030] Example 2:

[0031] The precast beam seat 11 has a U-shaped through groove running from front to back, and a first damping belt 13 is press-fitted into the U-shaped through groove; wherein, the first damping belt 13 is provided so that when the precast beam seat 11 is subjected to the transmitted vibration, it can receive the wave-like vibration and damp the precast beam seat 11 as a whole from the inside, so as to ensure the initial damping effect.

[0032] The bottom surface of the U-shaped groove on the top side of the precast beam seat 11 is provided with intermittently distributed lower clamping grooves 111, and the bottom of the second shock-absorbing strip 14 is fixedly installed with a lower clamping seat 141 that matches the position and specifications of the lower clamping grooves 111; the setting of the lower clamping grooves 111 and the lower clamping seat 141 at the bottom of 144 facilitates the clamping effect between them when laying the second shock-absorbing strip 14.

[0033] The bottom of the precast beam slab 12 is fixedly equipped with upper clamping seats 121 arranged at intervals, and the top of the second damping belt 14 is provided with an upper clamping groove 142 that matches the specifications of the upper clamping seats 121. The upper clamping groove 142 and the upper clamping seats 121 are provided so that when the precast beam slab 12 is clamped, the upper clamping seats 121 on it can be clamped onto the upper clamping groove 142 on the top of the second damping belt 14, which further ensures its clamping and limiting effect, and at the same time ensures the contact area between the second damping belt 14 and the precast beam seat 11 and the precast beam slab 12.

[0034] The top of both sides of the precast beam seat 11 is provided with a pressing part, and the bottom sides of the precast beam plate 12 are provided with side grooves 122, and the precast beam plate 12 is pressed onto the pressing parts at both ends of the precast beam seat 11 through the side grooves 122; wherein, the setting of the precast beam plate 12 can ensure the pressing effect between it and the precast beam seat 11.

[0035] The precast beam base 11 has spaced fastening bolt slots on both sides of its top. The precast beam plate 12 has screw holes located on the top side of the fastening bolt slots on the top of the precast beam base 11. The screw holes and the fastening bolt slots are assembled by fastening bolts. The fastening bolts can fasten the precast beam plate 12 to the top of both sides of the precast beam base 11, ensuring the overall stability of the precast beam component 1.

[0036] The working principle and usage process of this utility model are as follows: When the device is required to work, a precast beam seat 11 is made in one piece using a mold, and then the first shock-absorbing belt 13 is pressed into it. Then, the second shock-absorbing belt 14 is clamped onto the top side of the precast beam seat 11, and then the precast beam plate 12 is pressed onto the precast beam seat 11 and the second shock-absorbing belt 14. Finally, it is fastened and assembled with fastening bolts. When the device is subjected to vibration, when the precast beam plate 12 at the top of the precast beam component 1 is subjected to vibration, the vibration is transmitted downward through the second shock-absorbing belt 14 to the precast beam seat 11 at the bottom side, where the vibration is offset by the second shock-absorbing belt 14. At the same time, the first shock-absorbing belt 13 further offsets the vibration received by the precast beam seat 11 from the inside, solving the problem that existing devices are unable to efficiently dampen the vibration transmitted by the track according to the requirements.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rail transit prefabricated beam slab structure with a damping layer, comprising a prefabricated beam component (1), the top of the prefabricated beam component (1) is fastened with two groups of arranged and distributed sleepers (3), and the two groups of sleepers (3) are fitted with steel rails (2). characterized in that The prefabricated beam component (1) comprises a prefabricated beam base (11) and a prefabricated beam slab (12) fastened on the top side of the prefabricated beam base (11), the prefabricated beam base (11) is an inverted table-shaped base, the top side of the prefabricated beam base (11) is provided with a U-shaped groove, the U-shaped groove in the prefabricated beam base (11) is fastened with a second damping belt (14), and the top side of the second damping belt (14) contacts the bottom surface of the prefabricated beam slab (12).

2. The rail transit precast beam slab structure with a shock-absorbing layer according to claim 1, characterized in that: A U-shaped through groove is formed in the prefabricated beam base (11) and a first damping belt (13) is pressed and fitted in the U-shaped through groove.

3. The rail transit precast beam slab structure with a damping layer according to claim 1, characterized in that: A lower clamping groove (111) is formed on the bottom surface of the U-shaped groove of the prefabricated beam base (11) in a spaced distribution, and a lower clamping seat (141) with a size suitable for the position of the lower clamping groove (111) is fixedly installed on the bottom of the second damping belt (14).

4. The rail transit precast beam slab structure with a damping layer according to claim 3, characterized in that: An upper clamping seat (121) is fixedly installed on the bottom of the prefabricated beam slab (12) in a spaced distribution, and an upper clamping groove (142) with a size suitable for the upper clamping seat (121) is arranged on the top of the second damping belt (14).

5. The rail transit precast beam slab structure with a damping layer according to claim 1, characterized in that: The top ends of the two sides of the prefabricated beam base (11) are provided with pressing parts, the bottom of the prefabricated beam slab (12) is provided with side grooves (122), and the prefabricated beam slab (12) is pressed and fitted on the pressing parts at the two ends of the prefabricated beam base (11) through the side grooves (122).

6. The rail transit precast beam slab structure with a damping layer according to claim 5, characterized in that: The top of the prefabricated beam base (11) is provided with spaced distribution fastening bolt grooves, the prefabricated beam slab (12) is provided with a threaded hole on the top side of the fastening bolt groove on the top of the prefabricated beam base (11), and the threaded hole and the fastening bolt groove are fitted through a fastening bolt.

Images