Deck type arch bridge drainage system
By setting up a water barrier and drainage pipeline on the top of the cover beam, the problem of rainwater on the top of the bridge flowing through the side of the component has been solved, and the aesthetics and durability of the bridge have been improved.
Patent Information
- Application Number
- CN202422636433.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Rainwater on the top of the bridge flows through the expansion joints through the sides of the cover beams, columns, arch ribs and arch seats, forming water marks, affecting the durability and appearance of the bridge.
A first water barrier and drainage pipeline are arranged on the top of the cover beam to intercept rainwater and lead to a designated position. Combined with the cross slope and the multi-layer water barrier system, diversion and drainage to prevent rainwater from being discharged from the side of the component.
Effectively prevent rainwater from being discharged from the cover beams, columns, arch ribs and arch seat sides, maintain the beautiful appearance of the bridge and improve the durability of the bridge.
Smart Images
Figure CN223292937U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bridge construction, in particular to a drainage system for a deck arch bridge. Background Art
[0002] A deck arch bridge is one where the deck is positioned above the arch ribs. This type of bridge typically includes the deck, arch load-transmitting components (such as columns, beams, and slabs), arch ribs, and arch abutments.
[0003] The bridge deck is discontinuous at the expansion joints, allowing rainwater to flow down through the expansion joints, through the cap beams, columns, and other components, and then collect at the top of the arch ribs. Some of this water will flow down along the main arch ring to the arch foot and drain along the surface of the arch seat, while some will drain along the sides of the arch ribs. Prolonged water flow will form water marks where it passes, and pollutants that enter the water will also cause stains, affecting the durability and appearance of the bridge.
[0004] Therefore, a technical solution is currently needed to solve the technical problem that rainwater on the top of the bridge will flow through the expansion joints and the sides of components such as the cap beam, columns, arch ribs and arch seats, forming water marks. Pollutants entering the water will also form stains, affecting the durability and appearance of the bridge. Utility Model Content
[0005] The purpose of the utility model is to overcome the technical problem that rainwater on the top of the bridge will flow through the sides of components such as the cap beam, columns, arch ribs and arch seats through the expansion joints, forming water marks, and pollutants entering the water will also form stains, affecting the durability and appearance of the bridge, and to provide a drainage system for an overhead arch bridge.
[0006] The utility model provides a drainage system for an upper-supported arch bridge, comprising a main beam and an arch rib, wherein both ends of the arch rib are respectively connected to an arch seat, a column is provided between the main beam and the arch rib, a cap beam is provided on the top of the column, a plurality of pad stones are provided on the top of the cap beam, the main beam is arranged on the pad stones, and first water retaining plates are respectively provided on both sides of the top of the cap beam, the two first water retaining plates and the blocks at both ends of the cap beam enclose a water retaining interval, a drainage pipeline is connected to the side of the first water retaining plate, and the drainage pipeline is communicated with the water retaining interval.
[0007] The utility model discloses a drainage system for an upper-supported arch bridge. When in use, rainwater falls onto the main beam and falls onto the top of the cap beam through the expansion joint. Since first water retaining plates are provided on both sides of the top of the cap beam, the rainwater will be blocked in the water retaining area surrounded by the two first water retaining plates and the two blocks after entering the top of the cap beam. The rainwater is then led to a designated position through a drainage pipe, thereby preventing rainwater from being discharged from the cap beam, columns, arch ribs and arch seat sides, thereby maintaining the beauty of the bridge and improving the durability of the bridge.
[0008] Preferably, the drainage pipeline includes a horizontal pipe, a plurality of drainage branches are connected above the horizontal pipe, each of the drainage branches is communicated with the water retaining zone, and a drainage main pipe is connected below the horizontal pipe.
[0009] The upper part of the horizontal pipe is connected to the first water retaining plate through a drainage branch pipe, which is used to lead the accumulated water in the water retaining interval into the horizontal pipe, and then discharge the accumulated water through the drainage main pipe connected to the lower part of the horizontal pipe, thereby preventing the accumulated water from being discharged from the side of the cap beam and the side of the column.
[0010] Preferably, the drainage pipeline also includes several limiting components, and the limiting components include embedded parts, one side of the embedded parts is connected to a clamp, the embedded parts are used to connect the cap beam or column, and the clamp is used to connect the horizontal pipe or the drainage main pipe.
[0011] Multiple limit components are added to the drainage pipeline. The limit components limit the drainage pipeline to the side of the column or cap beam through clamps, thereby fixing the drainage pipeline on the bridge.
[0012] Preferably, a drainage trough is provided on the top of the cap beam, and the drainage trough includes two transverse slopes, and the two transverse slopes are enclosed to form a V shape, and at least one drainage branch pipe is connected to the bottom of the V shape.
[0013] The top of the cap beam is set into a V-shaped drainage trough, which is formed by two transverse slopes. It enhances the fluidity of the accumulated water in the water retaining area, facilitates the rapid discharge of the accumulated water in the water retaining area, and also avoids the accumulated water from remaining on the top of the cap beam.
[0014] Preferably, the slope of the transverse slope is set to 2%±0.5%.
[0015] Setting the slope of the transverse slope to 2% can, on the one hand, divert the accumulated water, thereby improving the efficiency of draining the accumulated water and reducing the residual accumulated water. At the same time, at this smaller slope, it has less impact on the construction of the pad stone on the cap beam.
[0016] Preferably, a second water retaining plate is provided on both sides of the arch rib.
[0017] Prevent accumulated water from falling onto the upper surface of the arch rib from being discharged through the side of the arch rib, keeping the surface of the arch rib dry, maintaining the beauty of the arch rib, and improving the durability of the arch rib.
[0018] Preferably, the second water retaining plate is provided with a plurality of oblique slits, the oblique slits are arranged obliquely to the width direction of the arch rib, and the oblique slits are arranged obliquely downward.
[0019] A downward and inwardly inclined slit is set on the second water retaining plate, so that rainwater entering the arch rib will not flow out along the slit. At the same time, the slit can prevent the second water retaining plate from cracking due to deformation caused by temperature, shrinkage creep and other effects.
[0020] Preferably, a third water baffle is provided between the arch seat and the arch rib, and the third water baffle is connected to a water pipe.
[0021] Under the action of the second water baffle, the accumulated water will be diverted to the connection between the arch rib and the arch seat, so the accumulated water here is deeper. By adding a third water baffle, the accumulated water can be intercepted between the arch seat and the arch rib, preventing the accumulated water from being discharged from the side of the arch seat. At the same time, the accumulated water is discharged to the ground or sedimentation tank through the water pipe connected to the third water baffle.
[0022] Preferably, the drainage main pipe extends above the arch rib.
[0023] The accumulated water on the top of the cap beam can be discharged into the upper surface of the arch rib through the drainage main pipe, and then flow into the space between the arch rib and the arch seat, and finally discharged through the water pipe, thus realizing the discharge of the accumulated water on the top of the cap beam, reducing the setting of pipelines, reducing construction costs, and shortening the construction period.
[0024] Preferably, the horizontal pipe, drainage branch pipe, drainage main pipe and water guide pipe are all PVC structural parts.
[0025] Pipes made of PVC have good corrosion resistance and a long service life when used outdoors. At the same time, they have low manufacturing costs, are easier to maintain in the future, and have low maintenance costs.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] The utility model provides a drainage system for an upper-supported arch bridge. Since first water retaining plates are arranged on both sides of the top of the cap beam, rainwater entering the top of the cap beam will be blocked in the water retaining area surrounded by the two first water retaining plates and the two blocks, and then the rainwater will be led to a designated position through a drainage pipe, thereby preventing rainwater from being discharged from the cap beam, columns, arch ribs and arch seat sides, thereby maintaining the beauty of the bridge and improving the durability of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a structural diagram of a drainage system for a deck arch bridge according to the present invention;
[0029] Figure 2 It is a top view of the cap beam of the utility model;
[0030] Figure 3 This is a front view of the cap beam and columns of the utility model;
[0031] Figure 4 It is a side view of the cap beam and the column of the utility model;
[0032] Figure 5 This is a partial enlarged view of the connection between the drainage pipe and the cap beam of the utility model;
[0033] Figure 6 This is a partial enlarged view of the connection between the drainage pipe and the first water baffle of the utility model;
[0034] Figure 7 It is a structural diagram of the arch rib and the arch seat of the utility model;
[0035] Figure 8 It is a partial enlarged view of the connection between the arch rib and the arch seat of the utility model;
[0036] Figure 9 It is a partial enlarged view of the arch rib of the utility model;
[0037] Markings in the figure:
[0038] 1-main beam, 11-expansion joint, 2-arch rib, 21-second water retaining plate, 211-oblique joint, 3-arch seat, 31-third water retaining plate, 4-column, 5-cap beam, 51-pad stone, 52-first water retaining plate, 521-filling material, 53-block, 54-drainage trough, 541-cross slope, 6-drainage pipeline, 61-cross pipe, 62-drainage branch pipe, 63-drainage main pipe, 64-limiting assembly, 641-embedded parts, 642-hoop, 7-water pipe. DETAILED DESCRIPTION
[0039] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.
[0040] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships such as "upper," "lower," "left," "right," "center," "inside," and "outside" are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is placed when it is conventionally used. These terms of orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians, and do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, they should not be understood as limitations on the present invention.
[0041] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.
[0042] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.
[0043] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.
[0044] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.
[0045] Example 1
[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, a drainage system of an upper-supported arch bridge includes a main beam 1 and an arch rib 2, wherein both ends of the arch rib 2 are respectively connected to an arch seat 3, a column 4 is provided between the main beam 1 and the arch rib 2, a cap beam 5 is provided on the top of the column 4, a plurality of pad stones 51 are provided on the top of the cap beam 5, the main beam 1 is set on the pad stones 51, and first water retaining plates 52 are respectively provided on both sides of the top of the cap beam 5, the two first water retaining plates 52 and the blocks 53 at both ends of the cap beam 5 form a water retaining interval, the side of the first water retaining plate 52 is connected to a drainage pipe 6, and the drainage pipe 6 is connected to the water retaining interval.
[0047] During use, rainwater falls onto the main beam 1 and falls onto the top of the cap beam 5 through the expansion joint 11. Since the first water retaining plates 52 are provided on both sides of the top of the cap beam 5, the rainwater entering the top of the cap beam 5 will be blocked in the water retaining area surrounded by the two first water retaining plates 52 and the two blocks 53. The rainwater is then led to the designated position through the drainage pipe 6, avoiding the rainwater from being discharged from the sides of the cap beam 5, the column 4, the arch rib 2 and the arch seat 3, thereby maintaining the beauty of the bridge and improving the durability of the bridge.
[0048] Drainage pipe 6: includes a transverse pipe 61, and a plurality of drainage branch pipes 62 are connected to the top of the transverse pipe 61. Each drainage branch pipe 62 is connected to the water retaining interval. The number of drainage branch pipes 62 is set according to the length of the cap beam 5. At least one drainage branch pipe 62 is set for each closed interval. A drainage main pipe 63 is connected to the bottom of the transverse pipe 61. It is connected to the first water retaining plate 52 through the drainage branch pipe 62 (the connection is sealed by a filler 521, and the filler 521 is mortar). It is used to lead the accumulated water in the water retaining interval into the transverse pipe 61, and then drain the accumulated water through the drainage main pipe 63 connected to the bottom of the transverse pipe 61, thereby preventing the accumulated water from being discharged from the side of the cap beam 5 and the side of the column 4. The transverse pipe 61, the drainage branch pipe 62 and the drainage main pipe 63 are all made of PVC.
[0049] The drainage pipe 63 also includes several limiting components 64 for fixation. The limiting components 64 include embedded parts 641. One side of the embedded parts 641 is connected to a clamp 642. The embedded parts 641 are used to connect the cap beam 5 or the vertical column 4. The clamp 642 is used to connect the cross pipe 61 or the drainage main pipe 63. The limiting components 64 limit the drainage pipe 6 to the side of the column 4 or the cap beam 5 through the clamp 642, thereby realizing the fixation of the drainage pipe 6 on the bridge.
[0050] The first water retaining plate 52 can be cast in situ or built with bricks, using solid bricks or other impermeable bricks.
[0051] Example 2
[0052] like Figure 1 、 Figure 2 and Figure 3As shown, in this embodiment, the difference from Example 1 is that a drainage groove 54 is provided on the top of the cap beam 5, and the drainage groove 54 includes two transverse slope surfaces 541, and the two transverse slope surfaces 541 are enclosed to form a V shape, and at least one drainage branch pipe 62 is connected to the bottom of the V shape.
[0053] In this embodiment, a V-shaped drainage trough 54 is provided on the top of the cap beam 5. The drainage trough 54 is formed by two transverse slopes 541, which enhances the fluidity of the accumulated water in the water retaining interval, facilitates the rapid discharge of the accumulated water in the water retaining interval, and also avoids the accumulated water from remaining on the top of the cap beam 5.
[0054] Slope of the transverse slope 541: Setting the slope of the transverse slope 541 to 2% can, on the one hand, divert the accumulated water, thereby improving the efficiency of draining the accumulated water and reducing the residual accumulated water. At the same time, at this smaller slope, the construction of the pad stone 51 on the cap beam is less affected.
[0055] Example 3
[0056] like Figure 1 、 Figure 7 、 Figure 8 and Figure 9 As shown, the difference between this embodiment and embodiment 1 is that second water retaining plates 21 are respectively provided on both sides of the arch rib 2.
[0057] In this embodiment, by setting a second water retaining plate 21 on both sides of the arch rib 2, the accumulated water falling on the upper surface of the arch rib 2 is prevented from being discharged through the side of the arch rib 2, keeping the surface of the arch rib 2 dry, maintaining the beauty of the arch rib 2, and improving the durability of the arch rib 2.
[0058] Furthermore, the second water baffle 21 is provided with a plurality of oblique slits 211, and an oblique slit 211 is provided every 20 mm along the length direction of the second water baffle 21. The oblique slit 211 is arranged obliquely to the width direction of the arch rib 2, and the oblique slit 211 is arranged obliquely downward. The oblique slit 211 inclined downward and inward is provided on the second water baffle 21. After rainwater enters the arch rib 2, it will not flow out along the oblique slit 211. At the same time, the oblique slit 211 can avoid the second water baffle 21 from cracking due to deformation caused by temperature, shrinkage creep and other effects.
[0059] Furthermore, a third water baffle 31 is provided between the arch seat 3 and the arch rib 2. The third water baffle 31 is connected to a water pipe 7. The water pipe 7 is made of PVC. Under the action of the second water baffle 21, the accumulated water will be diverted to the connection between the arch rib 2 and the arch seat 3. Therefore, the accumulated water here is deeper. By adding the third water baffle 31, the accumulated water can be intercepted between the arch seat 3 and the arch rib 2 to prevent the accumulated water from being discharged from the side of the arch seat 3. At the same time, the accumulated water is discharged to the ground or the sedimentation tank through the water pipe 7 connected to the third water baffle 31.
[0060] Furthermore, the drainage main 62 extends to above the arch rib 2, and the accumulated water at the top of the cap beam 5 can be discharged into the upper surface of the arch rib 2 through the drainage main 63, and then flow into between the arch rib 2 and the arch seat 3, and finally discharged through the water pipe 7, thereby realizing the discharge of the accumulated water at the top of the cap beam 5, reducing the setting of pipelines, reducing construction costs, and shortening the construction period.
[0061] The second and third water retaining plates 21 and 31 can be cast-in-place. The diameter of the steel bars should be no less than 12 mm, and the length extending into the arch rib 2 should meet the requirements of the anchoring structure. The steel bars should be arranged along the entire length of the water retaining structure and interrupted at the diagonal joints. The width of the second water retaining plate should be between 10 cm and 15 cm, and the height should not be less than 12 cm. The second water retaining plate located at the lower part of the top surface of the inter-rib cross-joint should be appropriately raised and should not be less than 17 cm.
[0062] Brick masonry can also be used, using solid bricks or other impermeable bricks for masonry. Solid bricks or other impermeable bricks should be used for water-blocking bricks. On both sides of the top surface of the arch rib 2, the long sides of the bricks are parallel to the arch ribs and laid in two layers along the bridge direction. Considering that more rainwater is collected on the lower side of the top surface of the inter-rib cross-connection, three layers of bricks should be arranged on the lower side and two layers of bricks on the higher side. The water-blocking bricks need to be laid alternately between layers. After the laying is completed, they should be decorated with cement mortar on three sides.
[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A deck arch bridge drainage system, characterized in that: The invention comprises a main beam (1) and an arch rib (2), wherein both ends of the arch rib (2) are respectively connected to an arch seat (3), a column (4) is provided between the main beam (1) and the arch rib (2), a cap beam (5) is provided on the top of the column (4), a plurality of pad stones (51) are provided on the top of the cap beam (5), the main beam (1) is arranged on the pad stones (51), first water retaining plates (52) are respectively provided on both sides of the top of the cap beam (5), the two first water retaining plates (52) and the blocks (53) at both ends of the cap beam (5) enclose a water retaining zone, a drainage pipe (6) is connected to the side of the first water retaining plate (52), and the drainage pipe (6) is communicated with the water retaining zone.
2. The deck arch bridge drainage system according to claim 1, characterized in that: The drainage pipeline (6) comprises a transverse pipe (61), a plurality of drainage branch pipes (62) are connected above the transverse pipe (61), each drainage branch pipe (62) is connected to the water retaining zone, and a drainage main pipe (63) is connected below the transverse pipe (61).
3. The deck arch bridge drainage system according to claim 2, characterized in that: The drainage pipeline (6) further comprises a plurality of limiting components (64), wherein the limiting components (64) comprise embedded parts (641), one side of the embedded parts (641) is connected to a clamp (642), the embedded parts (641) are used to connect to the cap beam (5) or the column (4), and the clamp (642) is used to connect to the horizontal pipe (61) or the drainage main pipe (63).
4. The deck arch bridge drainage system according to claim 2, characterized in that: A drainage trough (54) is provided on the top of the cap beam (5), and the drainage trough (54) includes two transverse slopes (541). The two transverse slopes (541) are enclosed to form a V-shape, and at least one drainage branch pipe (62) is connected to the bottom of the V-shape.
5. The deck arch bridge drainage system according to claim 4, characterized in that: The slope of the transverse slope (541) is set to 2%±0.5%.
6. The deck arch bridge drainage system according to claim 4, characterized in that: Second water retaining plates (21) are respectively provided on both sides of the arch rib (2).
7. The deck arch bridge drainage system according to claim 6, characterized in that: The second water retaining plate (21) is provided with a plurality of oblique slits (211), wherein the oblique slits (211) are arranged obliquely to the width direction of the arch rib (2), and the oblique slits (211) are arranged obliquely downward.
8. The deck arch bridge drainage system according to claim 6, characterized in that: A third water baffle (31) is provided between the arch seat (3) and the arch rib (2), and the third water baffle (31) is connected to a water pipe (7).
9. The deck arch bridge drainage system according to claim 8, characterized in that: The drainage main pipe (63) extends above the arch rib (2).
10. A deck arch bridge drainage system according to any one of claims 2 to 9, characterized in that: The horizontal pipe (61), drainage branch pipe (62), drainage main pipe (63) and water guide pipe (7) are all PVC structural parts.