A prefabricated edge guardrail structure device with reserved connection slots

Abstract

This utility model discloses a prefabricated edge guardrail structure device with a pre-reserved connection slot, including an edge beam, a prefabricated body, a steel reinforcement frame, and an inner seat. A steel reinforcement support is pre-embedded at the edge of the edge beam. The prefabricated body is made of concrete and rests against the edge beam. The prefabricated body includes a base and a main body. A connection slot is recessed at the bottom inner side of the base, extending longitudinally. The steel reinforcement support extends into the connection slot, and the main body extends upward integrally from the base. By setting up the prefabricated body and cooperating with the connection slot recessed at the bottom inner side of the base, after the prefabricated body is hoisted, the steel reinforcement frame can be connected and fixed to the steel reinforcement support. Then, a second concrete pour is performed to form the inner seat. This allows for factory prefabrication with low precision requirements, rapid on-site hoisting, significantly accelerating construction progress, reducing noise and dust pollution during construction, and is environmentally friendly. It also avoids high-altitude work on the outside, ensuring a stable and reliable connection, and can be widely promoted and used.

Description

Technical Field

[0001] This utility model relates to the field of crash barriers, and in particular to a prefabricated edge crash barrier structure device with a reserved connection slot. Background Technology

[0002] Crash barriers, as the name suggests, are railings or barriers installed to prevent vehicles or other objects from colliding with and causing injury. These barriers are commonly found on roads, bridges, highways, parking lots, warehouses, airports, ports, and other locations, their primary function being to protect people and property from accidental impacts. In addition to their crash-prevention function, crash barriers also serve a separating function, dividing roads, parking lots, and other areas to ensure smooth and orderly traffic flow. Furthermore, barriers can also act as warnings and guides, using their color, shape, and reflective materials to alert drivers to road conditions and prevent accidents.

[0003] Edge crash barriers are a type of crash barrier installed along the edges of urban roads or highways. Currently, most edge crash barriers are constructed using monolithic cast-in-place concrete, which offers the advantage of reliable anchoring but suffers from long construction periods, requires numerous formwork templates, and has low construction efficiency. Furthermore, it involves working at heights on bridges, posing safety hazards. Existing prefabricated crash barriers use bolts and steel structure connections, which suffer from weak impact resistance or complex construction, high construction difficulty and precision requirements, and impact on bridge deck paving progress. Therefore, it is necessary to research a solution to address these problems. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a prefabricated edge crash barrier structure device with a reserved connection slot, which can effectively solve the problems of long construction period, high construction difficulty, high precision requirements and low construction efficiency of the existing edge crash barriers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prefabricated edge guardrail structure with a pre-reserved connection slot includes an edge beam, a prefabricated body, a steel reinforcement frame, and an inner seat. The edge beam has a steel reinforcement support embedded in its edge. The prefabricated body is made of concrete and rests against the edge beam. The prefabricated body includes a base and a main body. A connection slot is recessed at the bottom inner side of the base, extending longitudinally. The steel reinforcement support extends into the connection slot. The main body extends integrally upward from the base, and a grouting hole is provided on the prefabricated body, communicating with the connection slot. The steel reinforcement frame is embedded and fixed within the prefabricated body, with a portion of the frame located within the connection slot. The frame is connected and fixed to the steel reinforcement support. The inner seat is formed by secondary pouring of concrete into the connection slot through the grouting hole, completely filling the connection slot.

[0007] Preferably, the side beam includes a main beam flange plate, a reinforced concrete layer, and an asphalt concrete layer; the base abuts against the main beam flange plate, the steel reinforcement bracket is embedded in the main beam flange plate, the reinforced concrete layer is laid on the surface of the main beam flange plate and located on the periphery of the inner seat, and the asphalt concrete layer is laid on the surface of the reinforced concrete layer and located on the periphery of the inner seat.

[0008] Preferably, the base has a support platform and an eaves drip at its bottom, the support platform resting against the edge surface of the main beam flange, and the eaves drip resting against the outer surface of the main beam flange.

[0009] Preferably, the horizontal width of the support platform is 5cm, and the maximum horizontal width of the eaves drip edge is 10cm.

[0010] Preferably, the longitudinal length of the prefabricated body is 3-5m.

[0011] Preferably, both ends of the prefabricated body have connection notches.

[0012] Preferably, the steel reinforcement cage has multiple vertical main bars, which are arranged longitudinally at intervals. The distance between two adjacent vertical main bars is 100-150mm, the diameter of each vertical main bar is 16-22mm, and each vertical main bar extends partially into the connecting groove.

[0013] Preferably, the reinforcing steel cage has a U-shaped cross-section connecting reinforcing bar located in the connecting groove. The connecting reinforcing bar is fixedly connected to the vertical main reinforcing bar. The diameter of the connecting reinforcing bar is 8-12mm, and both the connecting reinforcing bar and the vertical main reinforcing bar are welded to the reinforcing steel support on one side.

[0014] Preferably, a longitudinal steel bar is inserted into the connecting groove. The longitudinal steel bar is connected between the steel bar support and the steel bar skeleton. The longitudinal steel bar is embedded and fixed in the inner seat. The diameter of the longitudinal steel bar is 10-16mm.

[0015] Preferably, the base has an inclined surface on its top inner side, and the grouting hole is located at the middle position of the inclined surface.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By setting up a prefabricated body and matching it with a connecting groove recessed on the inner bottom of the base, after the prefabricated body is hoisted, the steel frame can be connected and fixed with the steel support, and then a second concrete pour is carried out to form the inner seat. This can achieve factory prefabrication, low precision requirements, and rapid on-site hoisting, which greatly speeds up the construction progress and reduces noise and dust pollution generated during construction. It is green and environmentally friendly, and can also avoid high-altitude operations on the outside. The connection is stable and reliable, and it can be widely promoted and used.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0019] Figure 1 This is a front view of a preferred embodiment of the present invention;

[0020] Figure 2 This is a side view of a preferred embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Edge beam; 11. Main beam flange plate

[0024] 12. Reinforced concrete layer 13. Asphalt concrete layer

[0025] 20. Prefabricated body 21. Base

[0026] 211. Shelving platform; 212. Eaves drip edge

[0027] 22. Main body 201. Connecting slot

[0028] 202, Grouting Hole; 203, Connection Notch

[0029] 204, Inclined surface 30, Reinforcing steel cage

[0030] 31. Vertical main reinforcement bars; 32. Connecting reinforcement bars

[0031] 40, Inner seat 50, Steel reinforcement support

[0032] 60. Longitudinal reinforcement Detailed Implementation

[0033] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a side beam 10, a prefabricated body 20, a steel reinforcement frame 30, and an inner seat 40.

[0034] The edge of the side beam 10 is pre-embedded with a steel reinforcement support 50. Specifically, the side beam 10 includes a main beam flange plate 11, a reinforced concrete layer 12, and an asphalt concrete layer 13; the steel reinforcement support 50 is pre-embedded on the main beam flange plate 11, the reinforced concrete layer 12 is laid on the surface of the main beam flange plate 11, and the asphalt concrete layer 13 is laid on the surface of the reinforced concrete layer 12.

[0035] The precast body 20 is made of concrete and rests against the side beam 10. The precast body 20 includes a base 21 and a main body 22. A connecting groove 201 is recessed at the bottom inner side of the base 21, extending longitudinally. The reinforcing bar support 50 extends into the connecting groove 201. The main body 22 extends integrally upward from the base 21, and a grouting hole 202 is provided on the precast body 20, communicating with the connecting groove 201. In this embodiment, the longitudinal length of the precast body 20 is 3-5m. Both ends of the precast body 20 have connecting notches 203 to allow for the splicing of multiple precast bodies 20. The base 21 rests against the main beam flange plate 11. Specifically, the bottom of the base 21 has a support platform 211 and an eaves drip edge 212. The support platform 211 rests against the edge surface of the main beam flange plate 11, and the eaves drip edge 212 rests against the outer surface of the main beam flange plate 11. Furthermore, the lateral width of the support platform 211 is 5 cm, and the maximum lateral width of the eaves drip edge 212 is 10 cm. Additionally, the inner top side of the base 21 has an inclined surface 204, and the grouting hole 202 is located at the middle position of the inclined surface 204. The grouting hole 202 also serves as a vent.

[0036] The reinforcing steel skeleton 30 is embedded and fixed in the precast body 20, with a portion of the skeleton 30 located within the connecting slot 201. The skeleton 30 is connected and fixed to the reinforcing steel support 50. In this embodiment, the reinforcing steel skeleton 30 has multiple vertical main bars 31, which are arranged longitudinally at intervals. The distance between two adjacent main bars 31 is 100-150mm, and the diameter of each main bar 31 is 16-22mm. Each main bar 31 extends partially into the connecting slot 201. The reinforcing steel skeleton 30 also has a U-shaped connecting bar 32 located within the connecting slot 201. The connecting bar 32 is fixedly connected to the vertical main bars 31, and its diameter is 8-12mm. Both the connecting bar 32 and the vertical main bars 31 are welded to the reinforcing steel support 50 on one side, with a weld length of 10d. In addition, a longitudinal steel bar 60 is inserted into the connecting slot 201. The longitudinal steel bar 60 is connected between the steel bar support 50 and the steel bar skeleton 30 to enhance the anchoring force. The diameter of the longitudinal steel bar 60 is 10-16mm.

[0037] The inner seat 40 is formed by secondary pouring of concrete into the connecting groove 201 through the grouting hole 202, and the inner seat 40 completely fills the connecting groove 201. In this embodiment, the reinforced concrete layer 12 and the asphalt concrete layer 13 are both located on the periphery of the inner seat 40, and the longitudinal steel bar 60 is embedded and fixed in the inner seat 40.

[0038] The manufacturing and construction process of this embodiment is described in detail below:

[0039] First, the steel reinforcement frame 30 is fabricated in the factory, and the precast body 20 is precast using concrete, so that the precast body 20 and the steel reinforcement frame 30 are embedded and fixed together. Then, the precast body 20 and the steel reinforcement frame 30 are hoisted to the construction site. The main beam flange plate 11 is pre-fabricated at the construction site, and the main beam flange plate 11 is pre-embedded with steel reinforcement supports 50. After the precast body 20 is hoisted and placed on the main beam flange plate 11, the steel reinforcement supports 50 extend into the connecting groove 201, and then the longitudinal steel bars 60 are inserted longitudinally, and the steel reinforcement supports 50 are welded and fixed together with the steel reinforcement frame 30. Next, non-shrink fine aggregate concrete is pressed into the connecting groove 201 through the grouting hole 202. The grade of the concrete poured should be one grade higher than that of the concrete of the precast body 20 to form the inner seat 40 and form an integral whole. Finally, the reinforced concrete layer 12 and the asphalt concrete layer 13 are laid in sequence.

[0040] The key design feature of this invention is that by setting up a prefabricated body and having a connecting groove recessed at the bottom inner side of the base, the steel reinforcement skeleton can be connected and fixed to the steel reinforcement support after the prefabricated body is hoisted. Then, a second concrete pour is carried out to form the inner seat. This allows for factory prefabrication with low precision requirements, rapid on-site hoisting, greatly accelerating the construction progress, reducing noise and dust pollution during construction, making it environmentally friendly, avoiding high-altitude operations on the outside, and ensuring a stable and reliable connection. It can be widely promoted and used.

[0041] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A prefabricated edge barrier structure for reserving a connection slot, characterized by: The system includes a side beam, a precast body, a steel reinforcement frame, and an inner seat. The edge of the side beam has embedded steel reinforcement supports. The precast body is made of concrete and rests against the side beam. The precast body includes a base and a main body. The bottom inner side of the base has a recessed connecting groove that extends longitudinally. The steel reinforcement supports extend into the connecting groove. The main body extends integrally upward from the base, and the precast body has grouting holes that communicate with the connecting groove. The steel reinforcement frame is embedded and fixed within the precast body, with a portion of the frame located within the connecting groove. The frame is connected and fixed to the steel reinforcement supports. The inner seat is formed by secondary concrete pouring through the grouting holes into the connecting groove, completely filling the groove.

2. A prefabricated edge barrier structure device for reserving a connecting slot according to claim 1, characterized in that: The side beam includes a main beam flange plate, a reinforced concrete layer, and an asphalt concrete layer; the base abuts against the main beam flange plate, the steel reinforcement bracket is embedded in the main beam flange plate, the reinforced concrete layer is laid on the surface of the main beam flange plate and located on the periphery of the inner seat, and the asphalt concrete layer is laid on the surface of the reinforced concrete layer and located on the periphery of the inner seat.

3. A prefabricated edge barrier structure device for reserving a connecting slot according to claim 2, characterized in that: The base has a support platform and an eaves drip at its bottom. The support platform rests on the edge surface of the main beam flange, and the eaves drip rests on the outer surface of the main beam flange.

4. The prefabricated edge collision guardrail structure device with reserved connection slot as described in claim 3, characterized in that: The horizontal width of the platform is 5cm, and the maximum horizontal width of the eaves drip edge is 10cm.

5. A prefabricated edge crash barrier structure device with a reserved connection slot as described in claim 1, characterized in that: The longitudinal length of the prefabricated body is 3-5m.

6. The prefabricated edge collision guardrail structure device with reserved connection slot as described in claim 1, characterized in that: Both ends of the prefabricated body have connection notches.

7. The prefabricated edge collision guardrail structure device with reserved connection slot as described in claim 1, characterized in that: The steel reinforcement cage has multiple vertical main bars, which are arranged longitudinally at intervals. The distance between two adjacent vertical main bars is 100-150mm, and the diameter of each vertical main bar is 16-22mm. Each vertical main bar extends partially into the connecting groove.

8. A prefabricated edge collision guardrail structure device with a reserved connection slot as described in claim 7, characterized in that: The steel reinforcement cage has a U-shaped cross-section connecting steel bar located in the connecting groove. The connecting steel bar is fixedly connected to the vertical main reinforcement bar. The diameter of the connecting steel bar is 8-12mm, and both the connecting steel bar and the vertical main reinforcement bar are welded to the steel reinforcement support on one side.

9. A prefabricated edge collision guardrail structure device with a reserved connection slot as described in claim 8, characterized in that: A longitudinal steel bar is inserted into the connecting slot. The longitudinal steel bar is connected between the steel bar support and the steel bar skeleton. The longitudinal steel bar is embedded and fixed in the inner seat. The diameter of the longitudinal steel bar is 10-16mm.

10. A prefabricated edge crash barrier structure device with a reserved connection slot as described in claim 1, characterized in that: The base has an inclined surface on its top inner side, and the grouting hole is located at the middle position of the inclined surface.

Images