Water accumulation prevention device for lowest point of asphalt concrete surface layer of expressway elevated bridge

Abstract

The utility model discloses an expressway elevated bridge asphalt concrete surface layer lowest point water accumulation prevention device which comprises a square pipe arranged along the intersection position of a reinforced concrete cushion layer, an asphalt concrete surface layer and a steel fiber reinforced concrete layer, and the two ends of the square pipe are arranged in a closed mode. A plurality of water inlet holes which are distributed at equal intervals are formed in the left side wall of the square pipe, and a water outlet hole is formed in the right side wall of the square pipe; the leading-in end of the drainage pipe connector is communicated with the water outlet hole of the square pipe in a sealed mode through a drainage pipe. According to the device, the square pipes are arranged along the intersection of the reinforced concrete cushion layer, the asphalt concrete surface layer and the steel fiber concrete layer, and water seeping from the bridge surface layer can be drained to the drainage pipes reserved on the two sides of the road surface, so that water accumulation of the lowest point of the bridge surface layer is prevented.

Description

Technical Field

[0001] The utility model relates specifically to the technical field of construction engineering, in particular to a device for preventing water accumulation at the lowest point of an asphalt concrete surface layer of an expressway viaduct bridge. Background Art

[0002] In the construction of urban expressway viaducts, prefabricated and assembled structures are currently mostly used. After the prefabricated piers, cap beams and box beams are erected and installed, the bridge deck pavement and other construction are required. The bridge deck pavement generally uses an 8cm thick C50 reinforced concrete (impermeability grade S6) leveling layer + a 2mm waterproof layer + a 6cm medium-grained asphalt concrete (AC-20C SBS modified) bottom layer + a 4cm fine-grained asphalt mastic crushed stone mixture (SMA-13 ​​SBS modified) top layer. Noise-reducing comb plate expansion joints will be set at each joint of the bridge deck (please refer to the attached Figure 5 and 6 ), rainwater inlets and drainage pipes are installed on both sides of the bridge deck. During rain, water easily accumulates on the asphalt concrete surface on both sides of the expansion joint at the lowest point of the bridge deck, which is detrimental to driving safety. Over time, it can also damage the pavement structure, affecting its performance and safety. Utility Model Content

[0003] To this end, the present invention proposes a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct bridge to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct bridge, comprising:

[0005] A square tube is arranged along the intersection of the reinforced concrete cushion layer, the asphalt concrete surface layer, and the steel fiber concrete layer, and both ends of the square tube are closed. The left wall of the square tube is provided with multiple equally distributed water inlet holes, and the right wall of the square tube is provided with a water outlet hole;

[0006] A drainage pipe joint, the inlet end of which is sealed and connected to the water outlet of the square tube through a drainage pipe;

[0007] A drainage pipe, one end of which is arranged at the drainage outlet of the bridge, and the other end of the drainage pipe is connected to the outlet end of the drainage pipe joint;

[0008] and a plurality of fixing components, which are evenly distributed on the steel trusses in the steel fiber concrete layer, and each two fixing components form a group, which are respectively fixed at the upper and lower corners of the right end of the square tube;

[0009] Wherein, a cotton cloth layer is filled between the square tube and the asphalt concrete surface layer.

[0010] Furthermore, preferably, the upper surface of the cotton cloth layer is coated with caulking glue.

[0011] Furthermore, preferably, the distance between each two adjacent water inlet holes is set to 20-30 cm.

[0012] Furthermore, preferably, the fixing assembly includes:

[0013] A mounting piece, which is fixedly sleeved on the steel truss;

[0014] A spring seat, which is fixedly connected to the mounting member via a connecting column;

[0015] a telescopic member, one end of which is fixed to the bottom of the right side wall of the spring seat, and the other end of which is fixedly connected to a limit block;

[0016] and a spring, which is wound around the side wall of the telescopic member and connected between the spring seat and the limiting block.

[0017] Furthermore, preferably, the limiting blocks on each group of the fixing components are symmetrically arranged.

[0018] Furthermore, preferably, the limit block adopts an "L"-shaped structure, and a rubber layer is provided on the inner surface of the limit block.

[0019] Further, as a preference, the telescopic member is composed of an outer tube, an inner rod, a slider and a sliding sleeve, wherein a slider is provided in the outer tube, and a sliding sleeve is fixedly sleeved on the side wall of the slider so that the slider can slide adaptively in the outer tube, and the slider is fixedly connected to one end of the inner rod, and the other end of the inner rod passes through the left port of the outer tube and extends out.

[0020] Furthermore, preferably, a plurality of air holes are provided on the side wall of the left end portion of the outer cylinder.

[0021] The utility model adopts the above technology and has the following beneficial effects compared with the existing technology: in the utility model device, the square tube is arranged along the intersection of the reinforced concrete cushion layer, the asphalt concrete surface layer and the steel fiber concrete layer, and close to the asphalt layer, and the square tube is quickly clamped together by multiple clamping components. Specifically, the limit block is manually pushed to the right to make room for the square tube arrangement. After the square tube of this section is arranged, the limit block is released, the spring rebounds, and the limit blocks located above and below cooperate with the square tube to fix the position;

[0022] In addition, an air hole is provided at the right end of the outer tube. When the slider and the sleeve are pushed to the right, negative pressure is generated therein, so that the external air flow is led into the outer tube through the air hole, so that there is a certain amount of gas on the left side of the slider to provide a buffering effect, slow down the speed of spring rebound, and avoid pressure loss to the other tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct;

[0024] Figure 2 This is a structural cross-sectional view of the square tube in a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct;

[0025] Figure 3 This is a schematic diagram of the structure of a fixing component in a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct;

[0026] Figure 4 This is a structural cross-sectional view of a telescopic member in a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct;

[0027] Figure 5 A schematic diagram of the bridge layout is provided;

[0028] Figure 6 This is a schematic diagram of the installation of the noise reduction comb plate.

[0029] In the figure: 1. Drainage pipe joint; 2. Square tube; 3. Steel fiber concrete layer; 4. Asphalt concrete surface layer; 5. Reinforced concrete cushion layer; 6. Drain pipe; 8. Water inlet hole; 9. Water outlet hole; 10. Mounting part; 11. Connecting column; 12. Spring seat; 13. Telescopic part; 14. Spring; 15. Limit block; 16. Outer tube; 17. Inner rod; 18. Slider; 19. Sleeve; 20. Air hole. DETAILED DESCRIPTION

[0030] In conjunction with the drawings in the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below.

[0031] Example: Please see the attached Figure 1-4 The utility model provides a technical solution: a device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct bridge, which comprises:

[0032] The square tube 2 is arranged along the intersection of the reinforced concrete cushion layer 5, the asphalt concrete surface layer 4, and the steel fiber concrete layer 3, and both ends of the square tube 2 are closed. The left wall of the square tube 2 is provided with a plurality of equally spaced water inlet holes 8, and the right wall of the square tube 2 is provided with a water outlet hole 9;

[0033] The drainage pipe joint 1, whose inlet end is sealed and connected to the water outlet 9 of the square tube 2 by a drainage pipe;

[0034] A drainage pipe 6, one end of which is arranged at the drainage outlet of the bridge, and the other end of the drainage pipe 6 is connected to the outlet end of the drainage pipe joint 1;

[0035] and a plurality of clamping components, which are evenly distributed on the steel trusses in the steel fiber concrete layer 3, and each two clamping components form a group, which are respectively clamped at the upper and lower corners of the right end of the square tube 2;

[0036] Among them, a cotton cloth layer is filled between the square tube 2 and the asphalt concrete surface layer 4 to ensure that precipitation can smoothly enter the square tube 2.

[0037] In this embodiment, the upper surface of the cotton cloth layer is smeared with caulking glue to prevent the square tube 2 from being blocked during concrete pouring.

[0038] In this embodiment, the distance between every two adjacent water inlet holes 8 is set to 20-30 cm.

[0039] In this embodiment, the fastening assembly includes:

[0040] A mounting member 10, which is fixedly sleeved on the steel truss;

[0041] The spring seat 12 is fixedly connected to the mounting member 10 via a connecting column 11;

[0042] A telescopic member 13, one end of which is fixed to the bottom of the right side wall of the spring seat 12, and the other end of the telescopic member 13 is fixedly connected to the limit block 15;

[0043] And a spring 14 is wound around the side wall of the telescopic member 13 and connected between the spring seat 12 and the limit block 15.

[0044] In this embodiment, the limiting blocks 15 on each set of fastening components are symmetrically arranged.

[0045] In this embodiment, the limiting block 15 adopts an “L”-shaped structure, and a rubber layer is provided on the inner surface of the limiting block 15 .

[0046] In this embodiment, the telescopic member 13 is composed of an outer tube 16, an inner rod 17, a slider 18 and a sliding sleeve 19, wherein the slider 18 is provided in the outer tube 16, and the sliding sleeve 19 is fixed on the side wall of the slider 18, so that the slider 18 can slide adaptively in the outer tube 16, and the slider 18 is fixedly connected to one end of the inner rod 17, and the other end of the inner rod 17 passes through the left port of the outer tube 16 and extends out.

[0047] In this embodiment, a plurality of air holes 20 are provided on the side wall of the left end portion of the outer cylinder 16;

[0048] It should be noted that, since the spring has a certain rebound force, if this force is not restricted, it is easy to cause pressure loss to the other pipe, affecting the operation of the drainage system. For this reason, an air hole is provided at the left end of the outer tube 16. When the slider 18 and the sleeve 19 are pushed to the right, negative pressure is generated therein, so that the external air flow is led into the outer tube through the air hole, so that there is a certain amount of gas on the left side of the slider 18 to provide a buffering effect and slow down the speed of spring rebound.

[0049] During the specific implementation, the square tubes are arranged along the intersection of the reinforced concrete cushion layer 5, the asphalt concrete surface layer 4 and the steel fiber concrete layer 3, and the other side tubes are quickly fixed by means of a plurality of fixing components. Specifically, the limit block 15 is manually pushed to the right to make room for the arrangement of the square tubes. After the square tubes of this section are arranged, the limit block 15 is released, the spring 14 rebounds, and the limit blocks located above and below cooperate with the other side tubes to fix their positions for subsequent concrete pouring.

[0050] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct bridge, characterized in that: It includes: A square tube (2) is arranged along the intersection of the reinforced concrete cushion layer (5), the asphalt concrete surface layer (4), and the steel fiber concrete layer (3), and both ends of the square tube (2) are closed. The left side wall of the square tube (2) is provided with a plurality of equally spaced water inlet holes (8), and the right side wall of the square tube (2) is provided with a water outlet hole (9); A drainage pipe joint (1), the inlet end of which is sealed and connected to the water outlet hole (9) of the square tube (2) through a drainage pipe; A drainage pipe (6), one end of which is arranged at the drainage outlet of the bridge, and the other end of the drainage pipe (6) is connected to the outlet end of the drainage pipe joint (1); and a plurality of clamping components, which are provided and evenly distributed on the steel trusses in the steel fiber concrete layer (3), and each two clamping components form a group, respectively clamped at the upper and lower corners of the right end of the square tube (2); Wherein, a cotton cloth layer is filled between the square tube (2) and the asphalt concrete surface layer (4).

2. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 1, characterized in that: The upper surface of the cotton cloth layer is smeared with caulking glue.

3. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 1, characterized in that: The distance between each two adjacent water inlet holes (8) is set to 20-30 cm.

4. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 1, characterized in that: The fixing assembly includes: A mounting member (10) fixedly sleeved on the steel truss; A spring seat (12) is fixedly connected to the mounting member (10) via a connecting column (11); A telescopic member (13), one end of which is fixed to the bottom of the right side wall of the spring seat (12), and the other end of the telescopic member (13) is fixedly connected to the limiting block (15); and a spring (14) wound around the side wall of the telescopic member (13) and connected between the spring seat (12) and the limiting block (15).

5. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 4, characterized in that: The limiting blocks (15) on each group of the clamping components are symmetrically arranged.

6. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 5, characterized in that: The limit block (15) adopts an "L"-shaped structure, and a rubber layer is provided on the inner surface of the limit block (15).

7. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 6, characterized in that: The telescopic member (13) is composed of an outer cylinder (16), an inner rod (17), a slider (18) and a sliding sleeve (19), wherein the slider (18) is provided in the outer cylinder (16), and the sliding sleeve (19) is fixedly sleeved on the side wall of the slider (18), so that the slider (18) can slide in the outer cylinder (16), and the slider (18) is fixedly connected to one end of the inner rod (17), and the other end of the inner rod (17) passes through the left port of the outer cylinder (16) and extends out.

8. The device for preventing water accumulation at the lowest point of the asphalt concrete surface layer of an expressway viaduct according to claim 7, characterized in that: A plurality of air holes (20) are provided on the side wall of the left end portion of the outer cylinder (16).

Images