CN216108058U - Pedestrian bridge drainage system - Google Patents

Abstract

The utility model discloses a pedestrian bridge drainage system which comprises a plurality of steel box girders, a first drainage pipe and a plurality of second drainage pipes which are sequentially connected, wherein an expansion joint is formed between every two adjacent steel box girders, a top plate of each steel box girder is provided with a drainage port, the drainage port is positioned at the lowest part of the top plate, and the drainage port is connected with a switching pipe; the first drainage pipe is connected among the plurality of steel box girders and is connected with the adapter pipe; a plurality of second drain pipes set up respectively in the expansion joint, and the roof of two adjacent steel box girders is connected respectively at the both ends of second drain pipe. According to the utility model, the water discharge port is arranged on the top plate of the steel box girder, and the plurality of second water discharge pipes are arranged at the expansion joint, so that accumulated water on the bridge floor can be effectively discharged, and the water discharge effect is good.

Description

Pedestrian bridge drainage system

Technical Field

The utility model relates to the technical field of bridges, in particular to a pedestrian bridge drainage system.

Background

For a common steel box girder pedestrian bridge, the bridge deck pavement usually adopts waterproof materials such as cement mortar, granite and the like, in the existing bridge girder drainage system, when drainage pipes are needed to be arranged for centralized drainage, a water inlet is arranged at a place parallel and level to the bridge deck pavement, rainwater can directly flow into the water inlet through longitudinal and transverse slopes of the bridge deck on the bridge deck, and then enters a municipal pipe network system after being collected through longitudinal drainage pipes. However, for some special bridge deck pavements, for example, materials with high water permeability are adopted, rainwater can flow to the steel box girder top plate through pavement, and cannot directly flow into the water inlet through the longitudinal slope and the transverse slope on the bridge deck, so that accumulated water on the steel box girder top plate cannot be discharged.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the pedestrian bridge drainage system provided by the utility model can effectively drain accumulated water on the bridge floor, and has a good drainage effect.

According to the embodiment of the utility model, the pedestrian bridge drainage system comprises: the expansion joint is formed between every two adjacent steel box girders, a water outlet is formed in the top plate of each steel box girder and is positioned at the lowest position of the top plate, and the water outlet is connected with a switching pipe; the first drainage pipe is connected among the plurality of steel box girders and is connected with the adapter pipe; and the second drain pipes are respectively arranged at the expansion joints, and two ends of each second drain pipe are respectively connected with the top plates of the two adjacent steel box girders.

The technical scheme at least has the following beneficial effects: set up the outlet in the least significant of the roof of steel box girder, to the condition of mating formation that sets up the water permeability and be strong on the roof, flow to the roof of steel box girder when water sees through mating formation, hydroenergy enough gets into the outlet and discharges through first drain pipe, and simultaneously, expansion joint between two adjacent steel box girders sets up a plurality of second drain pipes of connecting two adjacent roofs, when the roof of one of which steel box girder gathers more water, water can flow into the roof of next steel box girder through the second drain pipe, and can evacuate near the water that gathers at expansion joint, thereby arrange the ponding on the bridge floor to the greatest extent, the problem of unable drainage when effectively solving the bridge floor and adopting the strong problem of mating formation of water permeability, the drainage is effectual.

According to some embodiments of the utility model, the middle portion of the top plate is higher than both ends of the top plate in the width direction of the steel box girder, and the drain port is provided at both ends of the top plate.

According to some embodiments of the utility model, the second drain pipes are provided at both sides of the top plate in a width direction of the steel box girder.

According to some embodiments of the utility model, the top plate is arranged obliquely along the length direction of the steel box girder, and the inclination angle of the second drain pipe is equal to that of the top plate.

According to some embodiments of the utility model, the steel box girder is provided with fixing structures located at two sides of the expansion joint, both the fixing structures are provided with through holes, the second drain pipe penetrates through the two through holes, one end of the second drain pipe is welded to the top plate of one of the steel box girders, and the fixing structure of the other steel box girder can move relative to the second drain pipe along the length direction of the second drain pipe.

According to some embodiments of the utility model, a buffer pad is disposed on an inner wall of the through hole, and the buffer pad is sleeved on an outer side wall of the second drain pipe.

According to some embodiments of the utility model, the drain opening is provided with a trash rack, and a top end surface of the trash rack is flush with an upper end surface of the top plate.

According to some embodiments of the utility model, the drain grating is provided at its periphery with a waterproof glue, which is accommodated in a gap between the drain grating and the top plate.

According to some embodiments of the utility model, the steel box girder is provided with a plurality of webs at intervals, the webs are arranged along the vertical direction, the webs are provided with reserved holes, and the first drainage pipe penetrates through the reserved holes.

According to some embodiments of the present invention, the first drain pipe is connected with a plurality of pipe clamps, the pipe clamps are arranged at intervals along a length direction of the first drain pipe, and each pipe clamp is fixedly connected to the top plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a partial structural schematic view of a steel box girder according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view of a drain in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an expansion joint according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is a cross-sectional view of C-C in fig. 4.

Reference numerals:

a steel box girder 100; an expansion joint 110; slotted toothed plate 111; a top plate 120; a drain port 121; an adapter tube 122; a fixed structure 130; a through hole 131; a cushion pad 132; a trash rack 140; a waterproof glue 141; a web 150; a prepared hole 151;

a first drain pipe 200; a pipe clamp 210;

a second drain pipe 300;

paving 400; a keel 410.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, in combination with fig. 4, an embodiment of the present invention provides a pedestrian bridge drainage system, including a plurality of steel box girders 100, a first drainage pipe 200 and a plurality of second drainage pipes 300 connected in sequence, the plurality of steel box girders 100 are connected in sequence to form a main structure of the pedestrian bridge, the number of the steel box girders 100 is set according to the length of the pedestrian bridge, generally speaking, an expansion joint 110 is formed between two adjacent steel box girders 100 to meet the requirement of bridge deck deformation, the pedestrian bridge is in a state of high middle and low two ends along the length direction of the pedestrian bridge, the upper end of the steel box girder 100 is provided with a top plate 120, the top plate 120 is in a state of high middle and low two sides along the width direction of the pedestrian bridge, thereby forming a longitudinal and transverse slope on the top plate 120, the gradient of the longitudinal and transverse slope is generally less than 1%, so as to drain water to two sides of the top plate 120 and two ends of the pedestrian bridge, the top plate 120 can be paved with 400 or paved with wood boards with strong water permeability, etc., or, The waterproof pavement 400 made of granite and the like is characterized in that for paving the waterproof pavement 400 with high water permeability, the pavement 400 is erected generally by a keel 410, a gap is formed between the bottom surface of the pavement 400 and the top plate 120, a water outlet 121 is arranged at the lowest part of the top plate 120 of each steel box girder 100, namely the water outlets 121 are positioned at two sides of the top plate 120 and close to two ends of a pedestrian bridge, each water outlet 121 is connected with a switching pipe 122, the switching pipes 122 are arranged to be three-way, a first drainage pipe 200 is arranged at the lower end of each steel box girder 100, the length direction of each first drainage pipe 200 is arranged along the length direction of the pedestrian bridge, the first drainage pipe 200 is connected with the switching pipes 122, and two ends of each first drainage pipe 200 are connected to a municipal pipe network system, so that water accumulated on the top plate 120 can be drained; in addition, a plurality of second drainage pipes 300 are arranged at the expansion joint 110, the number of the second drainage pipes 300 is set according to drainage requirements, the second drainage pipes 300 are arranged in the gap between the pavement 400 and the top plate 120, two ends of each second drainage pipe 300 are respectively connected with the top plates 120 of two adjacent steel box girders 100, so that the two adjacent top plates 120 are communicated, water can flow into the top plate 120 at the lower part from the top plate 120 at the higher part, the drainage capacity is enhanced, and accumulated water near the expansion joint 110 is evacuated.

Lay strong 400 of mating formation of water permeability such as plank to the roof 120 of steel box girder 100, when rain or spray other circumstances make 400 of mating formation gather water, water can see through 400 of mating formation and flow into roof 120, water on the roof 120 flows into outlet 121 through the longitudinal and transverse slopes on the roof 120, and flow into municipal pipe network system through first drain pipe 200, realize effective drainage, simultaneously, when water on the roof 120 that is located the eminence can't in time discharge through outlet 121, can flow into the roof expansion joint 120 that is located the low place through the second drain pipe 300 of 110 department, thereby strengthen the drainage ability of people's bridge, and, the second drain pipe 300 can evacuate the near water that gathers of 110, thereby can arrange the ponding on the bridge floor, the problem of unable drainage when effectively solving the bridge floor and adopting strong 400 of mating formation of water permeability, the drainage is effectual.

It can be understood that the second drainage pipes 300 are disposed at both sides of the top plate 120 in the width direction of the steel box girder 100, and since the top plate 120 is in a state of high in the middle and low at both sides in the width direction of the steel box girder 100, water on the top plate 120 mainly flows to both sides of the top plate 120, and accumulated water at the expansion joint 110 is also mainly located at both sides in the width direction of the steel box girder 100, thereby facilitating drainage and evacuation of accumulated water near the expansion joint 110, and enhancing the drainage capacity of the pedestrian bridge.

Referring to fig. 4, it can be understood that since the footbridge is in a state of high middle and low ends, the top plates 120 of the steel box girders 100 positioned at both ends of the footbridge are respectively inclined toward both ends of the footbridge, the second drain pipes 300 are also inclined, and the inclination angle of the second drain pipes 300 is equal to that of the top plates 120, so that water can flow from the top plates 120 positioned at high positions into the top plates 120 positioned at low positions, thereby enhancing the drainage capacity.

Referring to fig. 4 to 6, it can be understood that the steel box girder 100 is provided with the fixing structures 130 at both sides of the expansion joint 110, that is, the fixing structures 130 are located at both ends of the steel box girder 100 along the length direction thereof, the fixing structures 130 may be a self-compacting concrete structure, so that the riding plate 111 is installed at the expansion joint 110, both the fixing structures 130 are provided with the through holes 131, the through holes 131 are arranged along the length direction of the steel box girder 100, the second drain pipe 300 is inserted through the two through holes 131, one end of the second drain pipe 300 is welded to the top plate 120 of one of the steel box girders 100, the fixing structure 130 of the other steel box girder 100 can move relative to the second drain pipe 300 along the length direction of the second drain pipe 300, that is, one end of the second drain pipe 300 is fixed to one of the fixing structures 130 and welded to the top plate 120 thereof, and the other end is movably connected to the other fixing structure 130, so as to prevent the second drain pipe 300 from constraining the normal expansion deformation of the bridge deck, and effective drainage is achieved.

Referring to fig. 4 and 5, it can be understood that the inner wall of the through hole 131 is provided with the buffer pad 132, the buffer pad 132 is sleeved on the outer side wall of the second drain pipe 300, generally, the buffer pad 132 is only arranged in the through hole 131 of the fixing structure 130 movably connected with the second drain pipe 300, the buffer pad 132 can be a rubber pad, and the like, when the bridge deck is normally deformed in an extending and contracting manner, the fixing structure 130 is prevented from wearing the second drain pipe 300, and the service life of the second drain pipe 300 is prolonged.

Referring to fig. 3, it can be understood that the drain opening 121 is provided with a trash rack 140, a top end surface of the trash rack 140 is flush with an upper end surface of the top plate 120, and the trash rack 140 may have a mesh plate structure for intercepting leaves, large solid particles, etc., so as to prevent the first drain pipe 200 from being clogged and ensure normal drainage.

Referring to fig. 3, it can be understood that the periphery of the trash rack 140 is provided with a waterproof glue 141, the waterproof glue 141 is accommodated in the gap between the trash rack 140 and the top plate 120, and the waterproof glue 141 may be asphalt horseshoe grease or the like for blocking the gap between the trash rack 140 and the top plate 120 and preventing water leakage.

Referring to fig. 1 and 2, it can be understood that the steel box girder 100 is provided with a plurality of webs 150 at intervals along the length direction thereof, the webs 150 are arranged in the vertical direction, the webs 150 are provided with prepared holes 151, and the first drain pipes 200 are inserted through the prepared holes 151, so that the first drain pipes 200 are supported by the webs 150, and the first drain pipes 200 are stably connected.

Referring to fig. 2, it can be understood that a plurality of pipe clamps 210 are connected to the first drain pipe 200, the plurality of pipe clamps 210 are arranged at intervals along a length direction of the first drain pipe 200, and each of the plurality of pipe clamps 210 is fixedly connected to the top plate 120, so that the first drain pipe 200 is further supported by the pipe clamps 210 to further stabilize the first drain pipe 200.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A footbridge drainage system, comprising:

the expansion joint is formed between every two adjacent steel box girders, a water outlet is formed in the top plate of each steel box girder and is positioned at the lowest position of the top plate, and the water outlet is connected with a switching pipe;

the first drainage pipe is connected among the plurality of steel box girders and is connected with the adapter pipe;

and the second drain pipes are respectively arranged at the expansion joints, and two ends of each second drain pipe are respectively connected with the top plates of the two adjacent steel box girders.

2. The footbridge drainage system of claim 1, characterized in that: the middle part of the top plate is higher than the two ends of the top plate in the width direction of the steel box girder, and the water outlets are formed in the two sides of the top plate.

3. The footbridge drainage system of claim 2, wherein: the second drain pipe set up in the roof is followed the width direction's of steel box girder both ends.

4. The footbridge drainage system of claim 1, characterized in that: the roof is followed the length direction slope of steel box girder sets up, the inclination of second drain pipe with the inclination of roof equals.

5. The footbridge drainage system of claim 1, characterized in that: the steel box girder is provided with the fixed knot who is located the expansion joint both sides constructs, two fixed knot constructs all is provided with the through-hole, the second drain pipe is worn to locate two the through-hole, the one end of second drain pipe welds in one of it the steel box girder the roof, another the steel box girder the fixed knot construct can be followed the length direction of second drain pipe is relative the second drain pipe removes.

6. A footbridge drainage system as claimed in claim 5, wherein: the inner wall of through-hole is provided with the blotter, the blotter cover is located the lateral wall of second drain pipe.

7. The footbridge drainage system of claim 1, characterized in that: the water outlet is provided with a trash rack, and the top end face of the trash rack is flush with the upper end face of the top plate.

8. The footbridge drainage system of claim 7, wherein: waterproof glue is arranged on the periphery of the trash rack and contained in a gap between the trash rack and the top plate.

9. The footbridge drainage system of claim 1, characterized in that: the steel box girder interval is provided with a plurality of webs, the web is arranged along vertical direction, the web is provided with the preformed hole, first drain pipe wears to locate the preformed hole.

10. The footbridge drainage system of claim 9, wherein: first drain pipe connection has a plurality of pipe strap, and is a plurality of the pipe strap is followed the length direction interval arrangement of first drain pipe, and is a plurality of the equal fixed connection of pipe strap in the roof.

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