Drainage system suitable for steel box girder bridge deck

Abstract

The application discloses a drainage system suitable for a steel box girder bridge deck. Traditional steel box girder drainage needs to open holes in the steel box girder to embed drainage pipes, which is not beneficial to the stress of the steel box girder. The application pre-buries a water collecting tank in a concrete bridge deck slab, which is communicated with a stainless steel pipe; the stainless steel pipe is communicated with a tee pipe and a PVC pipe; the bottom of the water collecting tank is provided with a bottom plate, the periphery is provided with web plates and perforated web plates, and flange plates are welded on the plates; the top of the flange plates is welded with a clamping groove plate, and the clamping groove plate forms a rectangular accommodating groove; a rainwater grate is arranged in the rectangular accommodating groove; the tee pipe is a cylindrical stainless steel pipe, and a tee pipe top groove is arranged at the top of the tee pipe. The application can effectively avoid opening holes in the steel box girder to embed drainage pipes, improve the stress of the steel box girder structure, realize two drainage modes of centralized drainage and centralized + scattered drainage, and ensure smooth and efficient bridge deck drainage.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge design, and particularly relates to a drainage system suitable for a steel box girder bridge deck. BACKGROUND

[0002] Steel box girders are widely used in long-span bridges due to their light weight and high strength. Traditional steel box girder drainage requires a large number of round holes to be opened on the steel box girder to embed drainage pipes, which is not conducive to the stress of the steel box girder. At the same time, leakage often occurs at the opening due to poor sealing, causing corrosion of the steel structure and endangering the safety of the main structure. SUMMARY

[0003] In order to make up for the shortcomings of the prior art, the present application provides a drainage system suitable for a steel box girder bridge deck, which is embedded in a concrete bridge deck slab to avoid opening a large number of round holes on the steel box girder and to achieve smooth drainage of rainwater on the bridge deck.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] A drainage system suitable for a steel box girder bridge deck, characterized in that:

[0006] A concrete bridge deck slab is cast on the steel box girder, and a plurality of water collection tanks are pre-embedded in the concrete bridge deck slab, with the water collection tanks being arranged at the bottom of the cross slope of the concrete bridge deck slab; the water collection tanks are in communication with one end of a stainless steel pipe, and the stainless steel pipe is in communication with a three-way pipe and a PVC pipe;

[0007] Further, the overall shape of the water collection tank is rectangular, with a bottom plate steel plate arranged at the bottom and three web steel plates and one open-web steel plate arranged around; a flange steel plate is welded to each of the web steel plates and the open-web steel plate, a clamping groove steel plate is vertically welded to the top of each flange steel plate, and the clamping groove steel plates form a rectangular receiving groove; a rainwater grate is arranged in the rectangular receiving groove;

[0008] Further, the rainwater grate is made of a rectangular steel plate, and rainwater holes are arranged on the rectangular steel plate;

[0009] Further, the three-way pipe is a cylindrical stainless steel pipe, with the side holes of the two ends of the three-way pipe in communication with the PVC pipe, and the circular holes of the side of the three-way pipe in communication with the stainless steel pipe.

[0010] Further, a three-way pipe top groove is arranged at the top of the three-way pipe.

[0011] The beneficial effects of the present application are as follows:

[0012] 1) The present application uses the steel box bridge deck slab layer to set up a drainage system, which can effectively avoid opening holes on the steel box girder to embed drainage pipes, and improves the stress of the steel box girder structure;

[0013] 2) This invention utilizes the steel box bridge deck layer to set up a drainage system, which can effectively avoid water seepage and leakage caused by poor sealing of openings, thereby reducing the later operation and maintenance work and greatly improving the durability of the steel box structure.

[0014] 3) This invention can automatically realize two drainage modes, centralized drainage and centralized + scattered drainage, according to the rainfall intensity, to ensure smooth and efficient drainage of the bridge deck;

[0015] 4) This invention can be manufactured in a factory and installed on site, which facilitates construction and improves construction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the present invention;

[0017] Figure 2 This is a planar schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the water collection tank of the present invention;

[0019] Figure 4 This is a schematic diagram of the tee pipe of the present invention;

[0020] Figure 5 This is a schematic diagram of the rain grate structure of the present invention.

[0021] In the diagram, 1-steel box girder, 2-concrete bridge deck, 3-water collection trough, 4-stainless steel pipe, 5-PVC pipe, 6-tee pipe, 31-rain grate, 32-slotted steel plate, 33-flange steel plate, 34-web steel plate, 35-perforated web steel plate, 36-bottom plate steel plate, 61-round hole of tee pipe, 62-side hole of tee pipe, 63-top groove of tee pipe. Detailed Implementation

[0022] The present invention will now be described in detail with reference to specific embodiments.

[0023] This invention provides a drainage system suitable for steel box girder bridge decks by utilizing the cast-in-place concrete layer of the steel box girder bridge deck. It can collect rainwater from the bridge deck without damaging the openings of the main steel box girder, and can be quickly installed on the construction site. At the same time, it can automatically realize two drainage modes, namely centralized drainage and centralized + scattered drainage, according to the rainfall intensity, to ensure smooth and efficient drainage of the bridge deck.

[0024] like Figure 1 Figure 2 As shown, a concrete bridge deck 2 is poured on the steel box girder 1. Multiple water collection channels 3 and stainless steel pipes 4 are pre-embedded in the concrete bridge deck 2. The water collection channels 3 are set at the bottom of the cross slope on the concrete bridge deck 2. The water collection channels 3 are connected to one end of the stainless steel pipes 4. The stainless steel pipes 4 are connected to the PVC pipes 5 through the tee pipes 6. The PVC pipes 5 include multiple sections.

[0025] As Figure 3 shown, the overall shape of the water collecting tank 3 is rectangular, the bottom is provided with a bottom plate steel plate 36, the periphery is provided with three web steel plates 34 and one open web steel plate 35, the bottom plate steel plate 36, the web steel plate 34 and the open web steel plate 35 are welded and connected, and the sealing of the connection is ensured; the top of the web steel plate 34 and the open web steel plate 35 is welded with four flange steel plates 33, and the top of each flange steel plate 33 is vertically welded with a clamping groove steel plate 32; the four clamping groove steel plates 32 form a rectangular accommodating groove; the rainwater grate 31 is arranged in the rectangular accommodating groove;

[0026] As Figure 5 shown, the rainwater grate 31 is a rectangular steel plate, and a plurality of strip-shaped rainwater holes are arranged on the rectangular steel plate.

[0027] As Figure 4 shown, the tee pipe 6 is a cylindrical stainless steel pipe, the tee pipe side hole 62 at both ends is communicated with the PVC pipe 5, and the tee pipe circular hole 61 on the side is communicated with the stainless steel pipe 4; when the rainfall intensity is not large, the bridge deck rainwater can be collected and converged to the bridge pier or bridge tower for centralized drainage; when the rainfall intensity is too large and the PVC pipe 5 cannot drain water in time, the tee pipe top groove 63 can be arranged on the top of the tee pipe 6, the rainwater overflowing from the tee pipe top groove 63 can be scattered and drained, and the centralized + scattered drainage mode is automatically realized, so that the drainage is smooth and efficient.

[0028] The embedded water collecting tank 3, the stainless steel pipe 4 and the tee pipe 6 can be assembled into finished products in the factory, and then embedded when pouring the concrete bridge deck slab 2, which is convenient for on-site operation; the horizontal slope is arranged on the concrete bridge deck slab 2, the rainwater on the concrete bridge deck slab 2 is collected along the horizontal slope to the water collecting tank 3, and then flows into the PVC pipe 5 through the stainless steel pipe 4 and the tee pipe 6, and finally drained from the PVC pipe 5.

[0029] In the description of the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The content of the present application is not limited to the examples listed, and any equivalent transformation of the technical scheme of the present application by the ordinary skilled in the art through reading the specification of the present application is covered by the claims of the present application.

Claims

1. A drainage system suitable for use on a steel box girder bridge deck, characterized in that: Steel box girder (1) on pouring has concrete bridge deck (2), the concrete bridge deck (2) in pre-embedded multiple water collecting groove (3), the water collecting groove (3) is set in the cross slope bottom of concrete bridge deck (2);Water collecting groove (3) and stainless steel pipe (4) one end communication, the stainless steel pipe (4) is communicated through tee pipe (6) and PVC pipe (5); Pre-embedded water collecting groove (3), stainless steel pipe (4) and tee pipe (6) are assembled into finished product in factory, pre-embedded when pouring concrete bridge deck (2); The tee pipe (6) is cylindrical stainless steel pipe, and the tee pipe side hole (62) at both ends is communicated with the PVC pipe (5), and the tee pipe round hole (61) on the side is communicated with the stainless steel pipe (4); The tee pipe (6) top is provided with tee pipe top groove (63).

2. The drainage system for steel box girder bridge deck according to claim 1, characterized in that: The water collecting groove (3) is rectangular in overall appearance, is provided with bottom plate steel plate (36) at the bottom, is provided with three web steel plates (34) and one open web steel plate (35) around;The web steel plate (34) and open web steel plate (35) are welded with flange steel plate (33), each flange steel plate (33) is vertically welded with clamping groove steel plate (32) on the top, and the clamping groove steel plate (32) forms rectangular receiving groove;The rainwater grate (31) is arranged in the rectangular receiving groove.

3. The drainage system for steel box girder bridge deck according to claim 2, characterized in that: The rainwater grate (31) adopts rectangular steel plate, and the rectangular steel plate is provided with rainwater hole.

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