Longitudinal drainage connecting device for ends of bridge and construction method of longitudinal drainage connecting device

Abstract

The invention discloses a longitudinal drainage connecting device at the end of a bridge and a construction method thereof, and the device comprises a vertical bracket, a longitudinal water receiving tank and a transverse communicating pipe which are arranged at the top of the vertical bracket, an approach bridge side longitudinal drainage pipe arranged at the bottom of an approach bridge main beam, and a main bridge side longitudinal water collecting tank arranged at the bottom of a main bridge main beam, one end of the transverse communicating pipe is welded with the longitudinal water receiving tank web, the other end of the transverse communicating pipe is welded with the approach bridge side longitudinal drain pipe, and a rubber hose is arranged in the middle to adapt to transverse translation and rotational displacement of the approach bridge; the end, close to the approach bridge, of the main bridge side longitudinal water collecting tank penetrates through the longitudinal water collecting tank end plate to be connected into the longitudinal water collecting tank in a sliding mode, a drain hole is formed in a bottom plate at the near end of the main bridge side longitudinal water collecting tank, and a water collecting tank vertical drain plate is arranged at the drain hole. The main bridge side longitudinal water collecting tank and the longitudinal water receiving tank slide relatively to adapt to large longitudinal telescopic displacement generated by the main bridge, and the longitudinal drainage stability of the drainage system is met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge engineering, and more particularly relates to a longitudinal drainage connecting device for the end of a bridge and a construction method thereof. BACKGROUND

[0002] In the field of bridge engineering, the drainage design of a bridge is a key link to ensure the safety and durability of the bridge structure. Among them, the longitudinal drainage pipe of the bridge, as an important part of the drainage system, undertakes the important task of effectively guiding and draining the accumulated water such as rainwater on the bridge deck outside the bridge, and plays an important role in preventing water accumulation on the bridge, reducing the erosion of water on the bridge structure, and ensuring driving safety. However, when different bridge structures are connected, especially the connection between special structure bridges and ordinary bridges, due to the obvious difference in the relative position of the space of the longitudinal drainage pipes of the two types of bridges, the connection design of the longitudinal drainage pipes at the end of the bridge is difficult, and the connection of the longitudinal drainage pipes needs to consider the structural compatibility, material adaptability, and deformation compatibility. The core is to realize reliable drainage through flexible connection, sealing transition, and deformation compensation technology.

[0003] The conventional methods mainly have the following two kinds: one is to set a U-shaped bend or an Ω-shaped compensation ring at the end of the bridge, and to reserve a sufficient length to absorb the expansion and contraction deformation of the bridge; the other is to connect the longitudinal drainage pipes on both sides of the end of the bridge through a sliding joint with a water-stopping rubber, and to use the sliding joint to adapt to the expansion and contraction deformation of the bridge to avoid pipe rupture caused by bridge expansion and contraction.

[0004] These two connection methods of longitudinal drainage pipes have the following problems: ①The durability of these two connection methods is poor, and the joints are easy to be damaged. The U-shaped bend, the Ω-shaped compensation ring, and the sliding joint are usually made of rubber products, which are easy to age and fail, and the joints are also prone to water leakage; ②The application scope of these two connection methods is limited, and they are commonly used in cases where the relative position of the space of the drainage pipes on both sides of the end of the bridge is small and the drainage pipes are mostly circular. It is difficult to adapt to cases where the relative position of the space of the drainage pipes on both sides of the end of the bridge is large, different shapes of drainage pipes are connected (such as circular drainage pipes connected with U-shaped drainage pipes), and the bridge has large expansion and contraction displacement. SUMMARY

[0005] In order to solve the above problems or improve the prior art, the application provides a longitudinal drainage connecting device for the end of a bridge and a construction method thereof.

[0006] In order to achieve the above object, according to one aspect of the application, the application provides a longitudinal drainage connecting device for the end of a bridge, comprising a vertical bracket, a longitudinal water collecting groove fixed to the top of the vertical bracket, a transverse connecting pipe arranged on the top of the vertical bracket, a bridge side longitudinal drainage pipe arranged on the bottom of a main beam of a bridge approach, and a main bridge side longitudinal water collecting groove arranged on the bottom of a main beam of a main bridge, wherein, One end of the transverse connecting pipe is welded to the web of the longitudinal water collecting groove, the other end is welded to the bridge side longitudinal drainage pipe, and a rubber hose is arranged near the bridge approach end of the transverse connecting pipe; the main bridge side longitudinal water collecting groove is slidably connected to the longitudinal water collecting groove through the end plate of the longitudinal water collecting groove near the bridge approach end, a drain hole is arranged in the bottom plate of the end of the main bridge side longitudinal water collecting groove, and a vertical drain plate of the water collecting groove is arranged at the drain hole, so as to form a drainage passage; the main bridge side longitudinal water collecting groove and the longitudinal water collecting groove have an overlapping area in the direction of planar projection, and the two are relatively slidably adapted to the large expansion displacement of the main bridge.

[0007] Further, the end of the main bridge side longitudinal water collecting groove is provided with an end sealing plate of the water collecting groove.

[0008] Further, the vertical bracket comprises a channel steel column, an angle steel support rod and a splicing plate, which are welded to form a space support structure.

[0009] Further, the vertical bracket further comprises a bracket top plate welded to the top of the channel steel column as a fixing platform of the longitudinal water collecting groove and the transverse connecting pipe, and a column bottom plate welded to the bottom of the channel steel column, and the vertical bracket is fixed to the top of a cover beam of a transition pier of the bridge through the column bottom plate by expansion bolts.

[0010] Further, the longitudinal water collecting groove comprises a first web of the water collecting groove, a second web of the water collecting groove, a bottom plate of the water collecting groove, a first end sealing plate of the water collecting groove and a second end sealing plate of the water collecting groove, each plate is made of stainless steel, and each plate is welded to form a longitudinal water collecting groove with both ends closed and the top open.

[0011] Further, the water collecting groove first web plate is provided with a round hole at the near approach bridge side end, and the water collecting groove second end sealing plate is provided with a notch matching the main bridge side longitudinal water collecting groove section, the main bridge side longitudinal water collecting groove passes through the notch into the longitudinal water collecting groove, and a lubricating material is arranged along the notch.

[0012] Further, the transverse communication pipe comprises a first communication pipe welded at the corresponding round hole position of the water collecting groove second web plate, and a second communication pipe welded with the approach bridge side longitudinal drainage pipe, and the first communication pipe and the second communication pipe are connected through the rubber hose with the connecting flange.

[0013] Further, the approach bridge side longitudinal drainage pipe is blocked at the near main bridge end.

[0014] Further, the main bridge side longitudinal water collecting groove, vertical bracket, longitudinal water collecting groove, first communication pipe and second communication pipe are made of stainless steel.

[0015] According to another aspect of the present application, the present application provides a construction method of the longitudinal drainage connection device of the bridge end, which is realized by using the longitudinal drainage connection device of the bridge end described above, and is characterized in that the method comprises the following specific steps. S100: the approach bridge side longitudinal drainage pipe and the main bridge side longitudinal water collecting groove are constructed together with the main beam; S200: after the main beam is constructed, the bracket top plate, the channel steel column, the angle steel support rod, the splicing plate and the column bottom plate are welded and connected in the factory, and then the whole is hoisted to the bridge transition pier cap beam on site, the expansion bolts are punched into the bridge transition pier cap beam through the column bottom plate, and the vertical bracket is fixed; S300: after the position of the longitudinal water collecting groove is determined on the bracket top plate, the water collecting groove first web plate, the water collecting groove second web plate, the water collecting groove bottom plate, the water collecting groove first end sealing plate and the water collecting groove second end sealing plate are welded and connected to form the longitudinal water collecting groove, and the main bridge side longitudinal water collecting groove extends into the longitudinal water collecting groove through the water collecting groove second end sealing plate; S400: after the longitudinal water collecting groove is welded, the position of the transverse communication pipe is determined on the bracket top plate, the first communication pipe, the second communication pipe, the connecting flange and the rubber hose are assembled, the first communication pipe is welded at the round hole of the water collecting groove first web plate, and the second communication pipe is welded with the approach bridge side longitudinal drainage pipe, and the installation of the device is completed.

[0016] Overall, compared with the prior art, the above technical scheme conceived by the present application can achieve the following beneficial effects: 1.A longitudinal drainage connecting device for the end of a bridge, wherein a main bridge and a side longitudinal drainage pipe of an approach bridge are connected by a longitudinal water collecting groove and a transverse connecting pipe to form a drainage passage, and a first connecting pipe and a second connecting pipe of the transverse connecting pipe are connected by a rubber hose with a connecting flange, the rubber hose can adapt to the translational and rotational displacement of the approach bridge in the transverse direction of the bridge, and can meet the stability of the transverse drainage of the drainage system; the longitudinal water collecting groove is slidably connected to the longitudinal water collecting groove through a second end sealing plate of the water collecting groove, and the longitudinal water collecting groove and the longitudinal U-shaped water collecting groove are designed to have a certain length of overlapping area in the plane projection direction; when the main bridge has large expansion deformation, the side longitudinal U-shaped water collecting groove of the main bridge slides along the second end sealing plate of the water collecting groove to release the displacement amount generated by the expansion of the main bridge, thereby solving the problem that it is difficult to adapt to the large expansion displacement of the bridge by setting an elastic pipeline at the end of the bridge in the prior art; the device can adapt to the large expansion displacement of the main bridge and the translational and rotational displacement of the approach bridge in the transverse direction of the bridge, thereby ensuring the continuity and stability of the drainage system, and meeting the reliability and safety of the bridge drainage system.

[0017] 2.A longitudinal drainage connecting device for the end of a bridge, wherein a side longitudinal water collecting groove of a main bridge is connected to a side longitudinal drainage pipe of an approach bridge which has a spatial misalignment through a longitudinal water collecting groove and a transverse connecting pipe to form a drainage passage, thereby solving the problem that the relative spatial difference of the drainage pipes on both sides of the end of the bridge is large, especially the connection between a special structure bridge and a common bridge, and the spatial relative positions of the longitudinal drainage pipes of the two types of bridges have obvious differences, which leads to connection difficulty or even inability to connect; the device is not restricted by the spatial positions of the longitudinal drainage pipes on both sides of the end of the bridge, and can be widely applied to the connection of longitudinal drainage pipes at the end of various bridges, thereby improving the universality and applicability of the connection, and reducing the construction difficulty caused by the spatial position difference of the drainage pipes.

[0018] 3.A longitudinal drainage connecting device for the end of a bridge, wherein a side longitudinal drainage pipe of an approach bridge, a transverse connecting pipe, and a longitudinal water collecting groove are mutually welded and connected, and a side longitudinal water collecting groove of a main bridge is slidably connected to the longitudinal water collecting groove, thereby realizing the connection of longitudinal drainage pipes with different shapes, and solving the problem that different shapes of longitudinal drainage pipes of different bridges lead to connection difficulty; the connection of the longitudinal drainage pipe of the device is not restricted by the shape of the drainage pipe, so that the form of the longitudinal drainage pipe is more flexible, and the device is suitable for the connection of drainage pipes of different bridges.

[0019] 4.A longitudinal drainage connecting device for the end of a bridge, wherein a side longitudinal drainage pipe of an approach bridge, a side longitudinal water collecting groove of a main bridge, a vertical bracket, a longitudinal water collecting groove, a first connecting pipe, and a second connecting pipe are all made of stainless steel, and a connection passage is formed by welding or sliding sleeve connection, thereby solving the problem that traditional longitudinal drainage connecting devices usually use rubber products, which are prone to aging and failure, and the joints are also prone to water leakage; the device uses high-quality materials, optimizes the connection mode, enhances the durability of the device, and the joints or connections are not prone to water leakage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic diagram of a planar arrangement of a longitudinal drainage connection device for a bridge end portion according to an embodiment of the present application; Figure 2 A 1-1 sectional view of a longitudinal drainage connection device for a bridge end portion according to an embodiment of the present application; Figure 3 A 2-2 sectional view of a longitudinal drainage connection device for a bridge end portion according to an embodiment of the present application; Figure 4 An elevation view of a longitudinal gutter for a main bridge side according to an embodiment of the present application; Figure 5 A 3-3 sectional view of a longitudinal gutter for a main bridge side according to an embodiment of the present application; Figure 6 An elevation view of a vertical bracket according to an embodiment of the present application; Figure 7 A 4-4 sectional view of a vertical bracket according to an embodiment of the present application; Figure 8 A 5-5 sectional view of a vertical bracket according to an embodiment of the present application; Figure 9 A 6-6 sectional view of a vertical bracket according to an embodiment of the present application; Figure 10 An elevation view of a longitudinal gutter according to an embodiment of the present application; Figure 11 A 7-7 sectional view of a longitudinal gutter according to an embodiment of the present application; Figure 12 A second end plate of a longitudinal gutter according to an embodiment of the present application; Figure 13 An elevation view of a transverse communication pipe according to an embodiment of the present application; Figure 14 A flow chart of a construction method of a longitudinal drainage connection device for a bridge end portion according to an embodiment of the present application.

[0021] In all the drawings, the same reference signs denote the same technical features, specifically: 1 - a longitudinal drainage pipe for a bridge approach side, 2 - a longitudinal gutter for a main bridge side, 201 - a gutter end plate, 202 - a gutter vertical water discharge plate, 3 - a vertical bracket, 301 - a bracket top plate, 302 - a channel steel upright column, 303 - an angle steel support rod, 304 - a splicing plate, 305 - a column bottom plate, 306 - an expansion bolt, 4 - a longitudinal gutter, 401 - a first gutter web plate, 402 - a second gutter web plate, 403 - a gutter bottom plate, 404 - a first gutter end plate, 405 - a second gutter end plate, 5 - a transverse communication pipe, 501 - a first communication pipe, 502 - a second communication pipe, 503 - a connection flange, 504 - a rubber hose, 6 - a bridge transition pier cap beam. DETAILED DESCRIPTION

[0022] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, inside, outside, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0024] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and should not be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0025] In the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of additional identical elements in the process, method, article or equipment including the elements.

[0026] Embodiment 1 In the embodiments of the present application, the water flow direction is from the main bridge to the approach bridge, for example Figures 1-3As shown, this embodiment of the invention provides a longitudinal drainage connection device for the end of a bridge, including a longitudinal drainage pipe 1 on the approach bridge side, a longitudinal water collection trough 2 on the main bridge side, a vertical bracket 3, a longitudinal water receiving trough 4, and a transverse connecting pipe 5. The longitudinal drainage pipe 1 on the approach bridge side is located at the bottom of the main beam of the approach bridge, and the longitudinal water collection trough 2 on the main bridge side is located at the bottom of the main beam of the main bridge. Its end near the approach bridge is slidably connected to the longitudinal water receiving trough 4, and the longitudinal water receiving trough 4 is located below the longitudinal water collection trough 2 on the main bridge side. The two have a certain length of overlapping area in the plane projection direction. One end of the transverse connecting pipe 5 is welded to the web of the longitudinal water receiving trough 4, and the other end is welded to the longitudinal drainage pipe 1 on the approach bridge side. A flexible hose is provided in the middle to adapt to the translational and rotational displacement of the approach bridge in the transverse direction. The vertical bracket 3 is fixed to the top of the transition cap beam to provide a fixed platform for the longitudinal water receiving trough 4 and the transverse connecting pipe 5. A drainage path is formed by connecting the longitudinal drainage pipe 1 on the approach bridge side and the longitudinal water collection trough 2 on the main bridge side, which are spatially misaligned, through a longitudinal water receiving trough 4 and a transverse connecting pipe 5. The longitudinal water collection trough 2 on the main bridge side can slide relative to the longitudinal water receiving trough 4 to accommodate the large longitudinal expansion and contraction displacement of the main bridge. This ensures the stable and unobstructed drainage path at the bridge end, efficiently removing water from the bridge surface, and effectively adapts to the large longitudinal expansion and contraction displacement of the main bridge and the translational and rotational displacements of the approach bridge in the transverse direction. This avoids damage to the drainage system and drainage function impairment caused by structural deformation. The longitudinal drainage pipe 1 on the approach bridge side is a circular or square or other shape structure, and is tightly sealed near the end of the main bridge.

[0027] like Figures 4-5 As shown, the longitudinal water collection trough 2 on the main bridge side is provided with a water collection trough end sealing plate 201 at the end to prevent water from flowing directly into the longitudinal water receiving trough 4 from the end of the longitudinal water collection trough 2 on the main bridge side, which would generate a large impact force. In addition, a drainage hole is opened in the bottom plate near the end, and a vertical drainage plate 202 of the water collection trough is provided at the drainage hole to guide the water flow into the longitudinal water receiving trough 4 along the vertical drainage plate 202 of the water collection trough.

[0028] The longitudinal water collection channel 2 on the main bridge side has a U-shaped cross-section. The cross-section has been optimized, with its bottom width and sidewall height precisely calculated based on the bridge's drainage flow and water accumulation characteristics. This optimized U-shaped structure reduces the weight of the water collection channel while ensuring sufficient volume, thus lowering the additional load on the bridge structure. A filtration device composed of multiple layers of filter screens is installed inside the longitudinal U-shaped water collection channel 2 on the main bridge side. These screens intercept larger particles of impurities in the water flow, preventing them from entering the main bridge's drainage system and causing blockages.

[0029] The detachable maintenance cover plate is arranged on the top of the main bridge side longitudinal water collecting groove 2, so that the main bridge side longitudinal U-shaped water collecting groove 2 can be conveniently maintained and repaired. The maintenance cover plate is made of light and high-strength material and is fixed with the main bridge side longitudinal water collecting groove 2 by using quick connection lock buckles. When the filter device inside the water collecting groove needs to be cleaned or replaced, the maintenance cover plate can be opened to operate, without the need to remove the entire water collecting groove, so that the maintenance time is greatly shortened and the maintenance cost is reduced.

[0030] Further, the main bridge side longitudinal water collecting groove 2 can also be circular, square or other arbitrary cross-sectional shapes.

[0031] As shown in Figures 6-9 The vertical bracket 3 is fixed on the top of the bridge transition pier cap beam 6 and includes a bracket top plate 301, a channel steel column 302, an angle steel support rod 303, a splicing plate 304, a column bottom plate 305 and an expansion bolt 306. The channel steel column 302, the angle steel support rod 303 and the splicing plate 304 are welded to form a space support structure which can be welded to different sizes of space support structures as required. The column bottom plate 305 is welded at the bottom of the channel steel column 302. One end of the expansion bolt 306 is fixed with the column bottom plate 305 and the other end is embedded in the inside of the bridge transition pier cap beam 6 to fix the support. The bracket top plate 301 is welded at the top of the channel steel column 302. The bracket top plate 301 serves as a fixed platform of the longitudinal water collecting groove 4 and the transverse communication pipe 5. The bracket top plate 301 is provided with a transverse slope of 2% away from the bridge center line.

[0032] As shown in Figures 10-12As shown, the longitudinal water collecting groove 4 is a U-shaped groove with closed ends and an open top, provided with a 2% longitudinal slope along the water flow direction, and includes a first water collecting groove web 401, a second water collecting groove web 402, a water collecting groove bottom plate 403, a first water collecting groove end plate 404, and a second water collecting groove end plate 405, each of which is made of stainless steel; a circular hole is formed in the second water collecting groove web 402 at the side close to the approach bridge for welding the transverse communication pipe 5, and the water collecting groove bottom plate 403 is welded to the bracket top plate 301; the second water collecting groove end plate 405 is provided with a groove opening matching the cross section of the main bridge side longitudinal water collecting groove 2, so that the main bridge side longitudinal water collecting groove 2 can enter the interior of the longitudinal water collecting groove 4, and the longitudinal water collecting groove 4 is located below the main bridge side longitudinal water collecting groove 2, with a certain length of overlapping area in the planar projection direction; the main bridge side longitudinal water collecting groove 2 can slide along the second water collecting groove end plate 405 to adapt to the longitudinal extension and contraction displacement of the main bridge, and a polytetrafluoroethylene gasket or lubricating grease is arranged at the groove opening contact position to reduce the friction when the two slide relative to each other.

[0033] As shown in Figure 13 the transverse communication pipe 5 includes a first communication pipe 501, a second communication pipe 502, a connecting flange 503, and a rubber hose 504, and is placed on the bracket top plate 301 of the vertical bracket 3, and the first communication pipe 501 and the second communication pipe 502 are made of stainless steel. One end of the transverse communication pipe 5 is welded to the circular hole position of the second water collecting groove web 402 through the first communication pipe 501, and the other end is welded and connected to the approach bridge side longitudinal drainage pipe 1 through the second communication pipe 502, and the second communication pipe 502 is provided with a 5% transverse slope along the direction close to the bridge center line; the first communication pipe 501 and the second communication pipe 502 are connected through the rubber hose 504 with the connecting flange 503, the rubber hose 504 can adapt to the horizontal translation and rotation displacement of the approach bridge, and can meet the horizontal drainage stability of the drainage system, and the rubber hose 504 and the connecting flange 503 are replaceable structures, which are convenient for later replacement and maintenance.

[0034] The main bridge side longitudinal water collecting groove 2, the vertical bracket 3, the longitudinal water collecting groove 4, and the transverse communication pipe 5 are all made of stainless steel.

[0035] The longitudinal water collection trough 2 on the main bridge side of the device of the present invention is connected to the longitudinal drainage pipe 1 on the approach bridge side, which has spatial misalignment, through the longitudinal water receiving trough 4 and the transverse connecting pipe 5 to form a drainage passage. The transverse connecting pipe 5 is provided with a rubber hose 504 near the approach bridge end to adapt to the translational and rotational displacement of the approach bridge in the transverse direction. The longitudinal water collection trough 2 on the main bridge side slides into the longitudinal water receiving trough 4 through the second end sealing plate 405 of the water receiving trough and extends into the longitudinal water receiving trough 4 for a certain length. When the main bridge undergoes large longitudinal expansion and contraction deformation due to factors such as temperature changes and vehicle loads, the longitudinal U-shaped water collection channel 2 on the side of the main bridge moves longitudinally accordingly. At this time, the longitudinal U-shaped water collection channel 2 on the side of the main bridge slides along the second end sealing plate 405 of the water receiving channel to release the displacement caused by the expansion and contraction of the main bridge. The longitudinal U-shaped water collection channel 2 on the side of the main bridge is always located in the longitudinal water receiving channel 4. The water is drained into the longitudinal water receiving channel 4 through the vertical drainage plate 202 of the bottom water collection channel. The device of the present invention avoids damage to the drainage path due to structural deformation, ensures the continuous and stable operation of the bridge drainage system, and realizes the adaptation to the large longitudinal expansion and contraction displacement of the main bridge and the lateral displacement of the approach bridge while ensuring smooth drainage.

[0036] Example 2 In this embodiment of the invention, the water flow direction is from the approach bridge to the main bridge. Each pipe has a longitudinal slope along the water flow direction. The longitudinal water receiving trough 4 is located above the longitudinal water collecting trough 2 on the main bridge side and slides through the end sealing plate 201 of the water collecting trough into the longitudinal water collecting trough 2 on the main bridge side. The longitudinal water receiving trough 4 has a drain hole near the bottom plate of the main bridge end. A vertical drain plate of the water receiving trough is set at the drain hole. When the main bridge undergoes longitudinal expansion and contraction deformation, the longitudinal U-shaped water collecting trough 2 on the main bridge side moves longitudinally accordingly. The longitudinal water receiving trough 4 is always located in the longitudinal U-shaped water collecting trough 2 on the main bridge side. The water is guided into the longitudinal water collecting trough 2 on the main bridge side through the vertical drain plate of the bottom water receiving trough, so as to adapt to the longitudinal expansion and contraction displacement of the main bridge and discharge water from the approach bridge to the main bridge.

[0037] Example 3 like Figure 14 As shown in the figure, an embodiment of the present invention provides a construction method for a longitudinal drainage connection device at the end of a bridge, including the following specific steps: S100: The longitudinal drainage pipe 1 on the approach bridge side and the longitudinal water collection channel 2 on the main bridge side are constructed together with the main beam; S200: After the main beam construction is completed, the bracket top plate 301, channel steel column 302, angle steel strut 303, splice plate 304, and column bottom plate 305 are all welded and connected in the factory. After being hoisted onto the bridge transition pier cap beam 6 on site, the expansion bolts 306 are driven through the column bottom plate 305 into the bridge transition pier cap beam to fix the vertical bracket 3. S300: After determining the position of the longitudinal water channel 4 on the bracket top plate 301, the first water channel web plate 401, the second water channel web plate 402, the water channel bottom plate 403, the first water channel end sealing plate 404 and the second water channel end sealing plate 405 are welded to form the longitudinal water channel 4, and the main bridge side longitudinal water channel 2 extends into the longitudinal water channel 4 through the second water channel end sealing plate 405; S400: After the longitudinal water channel 4 is welded, the position of the transverse communication pipe 5 is determined on the bracket top plate 301, the first communication pipe 501, the second communication pipe 502, the connecting flange 503 and the rubber hose 504 are assembled, the first communication pipe 501 is welded at the round hole of the first water channel web plate 401, and the second communication pipe 502 is welded with the approach bridge side longitudinal drainage pipe 1, thereby completing the installation of the device.

[0038] Those skilled in the art will easily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A longitudinal drainage connection device at the end of a bridge, characterized in that, It includes a vertical bracket (3), a longitudinal water collection trough (4) fixed to the top of the vertical bracket (3), a transverse connecting pipe (5) set at the top of the vertical bracket (3), a longitudinal drainage pipe (1) set at the bottom of the approach bridge main beam, and a longitudinal water collection trough (2) set at the bottom of the main bridge main beam, wherein, One end of the transverse connecting pipe (5) is welded to the web of the longitudinal water receiving trough (4), and the other end is welded to the longitudinal drainage pipe (1) on the approach bridge side. A rubber hose (504) is provided near the approach bridge side in the middle. The longitudinal water collecting trough (2) on the main bridge side passes through the end plate of the longitudinal water receiving trough (4) and is slidably connected in the longitudinal water receiving trough (4). A drain hole is opened on the bottom plate near the end of the longitudinal water collecting trough (2) on the main bridge side. A vertical drain plate (202) of the water collecting trough is set at the drain hole to form a drainage channel. The longitudinal water collecting trough (2) on the main bridge side and the longitudinal water receiving trough (4) have an overlapping area in the plane projection direction. The two slide relative to each other to adapt to the large expansion and contraction displacement of the main bridge.

2. The longitudinal drainage connection device at the end of a bridge according to claim 1, characterized in that, The end of the longitudinal water collection trough (2) on the main bridge side is provided with a water collection trough end sealing plate (201).

3. A longitudinal drainage connection device at the end of a bridge according to claim 1, characterized in that, The vertical bracket (3) includes a channel steel column (302), an angle steel strut (303), and a splicing plate (304), which are welded together to form a spatial support structure.

4. A longitudinal drainage connection device at the end of a bridge according to claim 3, characterized in that, The vertical bracket (3) also includes a bracket top plate (301) welded to the top of the channel steel column (302) as a fixing platform for the longitudinal water receiving trough (4) and the transverse connecting pipe (5), and a column bottom plate (305) welded to the bottom of the channel steel column (302). The vertical bracket (3) is fixed to the top of the bridge transition pier cap beam (6) by means of expansion bolts (306) passing through the column bottom plate (305).

5. A longitudinal drainage connection device at the end of a bridge according to claim 1, characterized in that, The longitudinal water receiving trough (4) includes a first web plate (401), a second web plate (402), a bottom plate (403), a first end sealing plate (404), and a second end sealing plate (405). All plates are made of stainless steel and are welded together to form a longitudinal water receiving trough (4) that is closed at both ends and open at the top.

6. A longitudinal drainage connection device at the end of a bridge according to claim 5, characterized in that, The first web plate (401) of the water receiving trough has a round hole at one end near the approach bridge. The second end sealing plate (405) of the water receiving trough has a slot that matches the cross section of the longitudinal water collecting trough (2) on the main bridge side. The longitudinal water collecting trough (2) on the main bridge side passes through the slot and enters the interior of the longitudinal water receiving trough (4). Lubricating material is provided along the slot.

7. A longitudinal drainage connection device at the end of a bridge according to claim 6, characterized in that, The transverse connecting pipe (5) includes a first connecting pipe (501) welded to the corresponding round hole position of the second web plate (402) of the water receiving tank, and a second connecting pipe (502) welded to the longitudinal drainage pipe (1) on the approach bridge side. The first connecting pipe (501) and the second connecting pipe (502) are connected by the rubber hose (504) with a connecting flange (503).

8. A longitudinal drainage connection device at the end of a bridge according to claim 1, characterized in that, The longitudinal drainage pipe (1) on the approach bridge side is sealed tightly near the end of the main bridge.

9. A longitudinal drainage connection device at the end of a bridge according to any one of claims 1-8, characterized in that, The longitudinal water collection trough (2), vertical bracket (3), longitudinal water receiving trough (4), first connecting pipe (501) and second connecting pipe (502) on the main bridge side are all made of stainless steel.

10. A construction method for a longitudinal drainage connection device at the end of a bridge, implemented using a longitudinal drainage connection device at the end of a bridge as described in any one of claims 1-9, characterized in that, The specific steps include the following: S100: The longitudinal drainage pipe (1) on the approach bridge side and the longitudinal water collection trough (2) on the main bridge side are constructed together with the main beam; S200: After the main beam construction is completed, the bracket top plate (301), channel steel column (302), angle steel strut (303), splice plate (304), and column bottom plate (305) are all welded and connected in the factory. After being hoisted to the top of the bridge transition pier cap beam (6) on site, the expansion bolts (306) are driven through the column bottom plate (305) into the bridge transition pier cap beam (6) to fix the vertical bracket (3). S300: After determining the position of the longitudinal water receiving channel (4) on the bracket top plate (301), weld the first web plate (401), the second web plate (402), the bottom plate (403), the first end sealing plate (404), and the second end sealing plate (405) of the water receiving channel to form the longitudinal water receiving channel (4), and make the longitudinal water collection channel (2) on the main bridge side extend through the second end sealing plate (405) into the longitudinal water receiving channel (4); S400: After the longitudinal water receiving tank 4 is welded, determine the position of the transverse connecting pipe (5) on the bracket top plate (301), assemble the first connecting pipe (501), the second connecting pipe (502), the connecting flange (503) and the rubber hose (504), and weld the first connecting pipe (501) to the round hole of the first web plate (401) of the water receiving tank, and weld the second connecting pipe (502) to the longitudinal drainage pipe (1) on the approach bridge side to complete the installation of the device.

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