Bridge deck concrete pavement layer structure
By introducing hydrophobic layers and drainage channels into the bridge deck concrete paving layer structure, the problem of decreasing anti-seepage performance of the bridge deck paving layer after the use time is increased, and effective water discharge and water-resistant penetration performance of the bridge deck are achieved. Improvement extends the service life of the bridge deck.
Patent Information
- Application Number
- CN202420269103.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-04
AI Technical Summary
After the service time of the bridge deck concrete paving layer increases, it is prone to cracks and deterioration of anti-seepage performance, resulting in moisture penetration and accumulation, which in turn causes corrosion problems and shortens the service life of the bridge deck.
A concrete paving layer structure for the bridge deck is designed, including a hydrophobic layer, a waterproof layer, a gravel layer, a concrete layer and an asphalt layer. The hydrophobic layer is connected with the outer wall and a gravel layer of the bridge deck paving layer structure to form a drainage channel. In order to discharge the water that seeps into the asphalt layer.
Effectively discharge water bodies that seep under the asphalt layer, reduce the erosion of the water bodies on the bridge deck paving layer, improve water resistance and extend the service life of the bridge deck. At the same time, the vibration reduction of the bridge deck is improved through the setting of gravel layers and steel plates. and structural stability.
Smart Images
Figure CN222499968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge deck pavement, and more specifically to a bridge deck concrete pavement layer structure. Background Art
[0002] In recent years, ultra-high performance concrete has been used in steel bridge deck pavement structures due to its excellent mechanical properties. It can not only reduce the pavement thickness and the weight of the bridge deck system, but also improve the local stiffness of the bridge deck system and extend the fatigue life of the pavement and steel bridge deck. The performance of the ultra-high performance concrete layer is used to achieve the anti-seepage performance of the increased bridge deck and is suitable for high-corrosion environments and cyclic freeze-thaw environments. However, as the use time increases, cracks will occur on the bridge deck or the overall anti-seepage performance will decrease. The moisture on the bridge deck will penetrate and cannot be discharged in time, causing the moisture to slowly penetrate into the innermost part of the pavement layer, which may cause corrosion inside the pavement layer, reducing the service life of the bridge deck.
[0003] Therefore, how to provide a structure that can drain water in time to prevent the bridge deck concrete pavement layer from being soaked is a problem that technical personnel in this field urgently need to solve. Utility Model Content
[0004] In view of this, the utility model provides a bridge deck concrete pavement layer structure.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, including: a waterproof layer is fixedly provided on the lower end surface of the hydrophobic layer, a crushed stone layer for shock absorption and water seepage is fixedly provided on the upper end surface, a concrete layer is fixedly provided on the top of the crushed stone layer, an asphalt layer is fixedly provided on the top of the concrete layer, and the hydrophobic layer is provided with a drainage channel connecting the outer side wall of the bridge deck pavement structure and the crushed stone layer, so as to discharge the water that seeps from the asphalt layer out of the bridge deck pavement.
[0006] Preferably, in the above bridge deck concrete pavement structure, the hydrophobic layer includes a first reinforcement layer and a second reinforcement layer respectively arranged along the length direction and the width direction of the road surface, and the first reinforcement layer and the second reinforcement layer are stacked up and down.
[0007] Preferably, in the above-mentioned bridge deck concrete pavement structure, the drainage channels arranged in the first reinforcement layer and the second reinforcement layer are arranged in a staggered and interconnected manner, and are commonly connected to the crushed stone layer and the outer side wall of the bridge deck pavement structure.
[0008] Preferably, in the above-mentioned bridge deck concrete pavement structure, the first reinforcement layer and the second reinforcement layer are both formed by staggered welding of a plurality of steel reinforcement plates.
[0009] Preferably, in the above-mentioned bridge deck concrete pavement structure, the steel plates are welded with gaps at intervals, and the gaps serve as drainage channels.
[0010] Preferably, in the above-mentioned bridge deck concrete pavement structure, a filter layer for water seepage and preventing stones in the crushed stone layer from falling into the drainage channel is provided between the hydrophobic layer and the crushed stone layer.
[0011] It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. Water penetration resistance: The setting of the hydrophobic layer and drainage channel can effectively discharge the water that seeps into the asphalt layer, reduce the erosion of water on the bridge deck pavement layer, improve the bridge deck's ability to resist water penetration and extend its service life.
[0013] 2. Shock-absorbing effect: The setting of the crushed stone layer and spring can play a shock-absorbing role, improve the seismic resistance of the bridge deck, and increase driving comfort.
[0014] 3. Structural stability: The staggered welding of steel plates and the setting of filter layers can enhance the stability and durability of the bridge deck pavement structure.
[0015] 4. Easy maintenance: The setting of the filter layer can prevent the gravel layer from falling into the drainage channel, reduce blockage and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0017] Figure 1 The accompanying drawing is a cross-sectional view of the utility model.
[0018] Figure 2 The accompanying drawing is a schematic diagram of the hydrophobic layer structure of the utility model.
[0019] Figure 3 The accompanying drawing is a schematic diagram of the steel plate structure of the utility model.
[0020] In the figure, 1-waterproof layer, 2-hydrophobic layer, 200-drainage channel, 21-first reinforcement layer, 212-groove, 22-second reinforcement layer, 222-spring, 233-reinforced plate, 3-filter layer, 4-gravel layer, 5-concrete layer, 6-asphalt layer. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0023] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0025] Please see attached Figure 1-3 , which is a bridge deck concrete pavement layer structure disclosed by the utility model.
[0026] Embodiment 1:
[0027] The utility model mainly comprises: a waterproof layer 1, a hydrophobic layer 2, a crushed stone layer 4, a concrete layer 5, and an asphalt layer 6. The lower end surface of the hydrophobic layer 2 is fixedly provided with the waterproof layer 1, the upper end surface is fixedly provided with the crushed stone layer 4 for shock absorption and water seepage, the top of the crushed stone layer 4 is fixedly provided with a concrete layer 5, the top of the concrete layer 5 is fixedly provided with an asphalt layer 6, and the hydrophobic layer 2 is provided with a drainage channel 200 connecting the outer side wall of the bridge deck pavement structure and the crushed stone layer 4, so as to discharge the water seeping from the asphalt layer 6 out of the bridge deck pavement.
[0028] It should be noted that when water infiltrates the bridge deck, it slowly infiltrates into the innermost part of the paving layer, passing through the asphalt layer 6, the concrete layer 5, the gravel layer 4 and the hydrophobic layer 2 from top to bottom. Since the drainage channel 200 is connected with the gravel layer 4, when the water infiltrates from the gravel layer 4 to the hydrophobic layer 2, it will flow along the drainage channel 200. At the same time, the drainage channel 200 is connected with the outer wall of the paving layer, which is equivalent to being connected to the external natural environment, so that the water can be discharged into nature to avoid water accumulation inside the paving layer and soaking.
[0029] It should be noted that the height of the drainage channel 200 gradually decreases as it extends toward the outer wall of the pavement layer.
[0030] Preferably, a filter layer 3 is provided between the hydrophobic layer 2 and the gravel layer 4 for water seepage and preventing stones from the gravel layer 4 from falling into the drainage channel 200 .
[0031] It should be noted that the mesh diameter of the filter layer 3 should be less than or equal to 1 / 3 of the width of the drainage channel 200 or less than or equal to 1 / 3 of the height of the drainage channel 200. Preferably, the minimum value of the two values is used to prevent stones that fall into the drainage channel 200 from being discharged with the water in time, causing the drainage channel 200 to be blocked and affecting the effect.
[0032] A circular groove 212 is formed on the connecting surface of the first rib layer 21 and the second rib layer 22 , and a spring 222 for shock absorption is disposed in the groove 212 .
[0033] It should be noted that the spring 222 can produce a buffering effect when a vehicle passes by the bridge deck or the bridge deck expands or contracts due to heat or cold.
[0034] Embodiment 2:
[0035] The utility model mainly comprises: a waterproof layer 1, a hydrophobic layer 2, a filter layer 3, a crushed stone layer 4, a concrete layer 5 and an asphalt layer 6.
[0036] A waterproof layer 1 is fixedly arranged on the lower end surface of the hydrophobic layer 2, a crushed stone layer 4 for shock absorption and water seepage is fixedly arranged on the upper end surface, a concrete layer 5 is fixedly arranged on the top of the crushed stone layer 4, an asphalt layer 6 is fixedly arranged on the top of the concrete layer 5, and the hydrophobic layer 2 is provided with a drainage channel 200 connecting the outer wall of the bridge deck pavement structure and the crushed stone layer 4, so as to discharge the water seeping from the asphalt layer 6 out of the bridge deck pavement.
[0037] It should be noted that when water infiltrates the bridge deck, it slowly infiltrates into the innermost part of the paving layer, passing through the asphalt layer 6, the concrete layer 5, the gravel layer 4 and the hydrophobic layer 2 from top to bottom. Since the drainage channel 200 is connected with the gravel layer 4, when the water infiltrates from the gravel layer 4 to the hydrophobic layer 2, it will flow along the drainage channel 200. At the same time, the drainage channel 200 is connected with the outer wall of the paving layer, which is equivalent to being connected to the external natural environment, so that the water can be discharged into nature to avoid water accumulation inside the paving layer and soaking.
[0038] It should be noted that the height of the drainage channel 200 gradually decreases as it extends toward the outer wall of the pavement layer.
[0039] The hydrophobic layer 2 includes a first rib layer 21 and a second rib layer 22 respectively arranged along the length direction and the width direction of the road surface, and the first rib layer 21 and the second rib layer 22 are stacked up and down.
[0040] It should be noted that the hydrophobic layer 2 is divided into two layers that are staggered and stacked to reduce the impact of vibration and reduce the occurrence of blockage in the drainage channel 200.
[0041] The drainage channels 200 provided in the first reinforcement layer 21 and the second reinforcement layer 22 are arranged in a staggered and interconnected manner, and are interconnected with the crushed stone layer 4 and the outer side wall of the bridge deck pavement structure.
[0042] The first reinforcement layer 21 and the second reinforcement layer 22 are both formed by staggered welding of a plurality of reinforcement plates 233. The reinforcement plates 233 are welded with gaps at intervals, and the gaps are drainage channels 200.
[0043] Preferably, a filter layer 3 is provided between the hydrophobic layer 2 and the gravel layer 4 for water seepage and preventing stones from the gravel layer 4 from falling into the drainage channel 200 .
[0044] It should be noted that the mesh diameter of the filter layer 3 should be less than or equal to 1 / 3 of the width of the drainage channel 200 or less than or equal to 1 / 3 of the height of the drainage channel 200. Preferably, the minimum value of the two values is used to prevent stones that fall into the drainage channel 200 from being discharged with the water in time, causing the drainage channel 200 to be blocked and affecting the effect.
[0045] A circular groove 212 is formed on the connecting surface of the first rib layer 21 and the second rib layer 22 , and a spring 222 for shock absorption is disposed in the groove 212 .
[0046] It should be noted that the spring 222 can produce a buffering effect when a vehicle passes by the bridge deck or the bridge deck expands or contracts due to heat or cold.
[0047] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A bridge deck concrete pavement structure, characterized in that: A waterproof layer (1) is fixedly provided on the lower end surface of the hydrophobic layer (2), a crushed stone layer (4) for shock absorption and water seepage is fixedly provided on the upper end surface, a concrete layer (5) is fixedly provided on the top of the crushed stone layer (4), an asphalt layer (6) is fixedly provided on the top of the concrete layer (5), and the hydrophobic layer (2) is provided with a drainage channel (200) connecting the outer wall of the bridge deck pavement structure and the crushed stone layer (4) so as to discharge water seeping from the asphalt layer (6) out of the bridge deck pavement.
2. The bridge deck concrete pavement structure according to claim 1, characterized in that: The hydrophobic layer (2) comprises a first rib layer (21) and a second rib layer (22) which are arranged along the length direction and the width direction of the road surface respectively, and the first rib layer (21) and the second rib layer (22) are arranged to be stacked up and down.
3. The bridge deck concrete pavement structure according to claim 2, characterized in that: The drainage channels (200) provided in the first reinforcement layer (21) and the second reinforcement layer (22) are arranged in an interlaced and interconnected manner, and are connected to the crushed stone layer (4) and the outer side wall of the bridge deck pavement structure.
4. The bridge deck concrete pavement structure according to claim 3, characterized in that: The first reinforcement layer (21) and the second reinforcement layer (22) are both formed by staggered welding of a plurality of reinforcement plates (233).
5. The bridge deck concrete pavement structure according to claim 4, characterized in that: The steel bars (233) are welded with gaps at intervals, and the gaps serve as drainage channels (200).
6. The bridge deck concrete pavement structure according to claim 1 or 5, characterized in that: A filter layer (3) is provided between the hydrophobic layer (2) and the gravel layer (4) for water seepage and preventing stones in the gravel layer (4) from falling into the drainage channel (200).