Prefabricated bridge drainage structure
By using a prefabricated bridge drainage structure that connects C40 reinforced concrete longitudinal drainage collection channels with PVC corrugated hoses to PVC vertical drainage pipes, the durability and safety hazards of bridge drainage structures have been solved, achieving efficient and reliable drainage.
Patent Information
- Application Number
- CN202520333050.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing bridge drainage structures suffer from poor durability, unstable connections, and an inability to adapt to bridge deformation, leading to leaks and safety hazards.
A prefabricated bridge drainage structure is formed by using C40 reinforced concrete longitudinal drainage collection channels connected to PVC corrugated hoses and PVC vertical drainage pipes, combined with cast iron drain pipes and pre-embedded structures, which can adapt to bridge structural deformation and improve durability.
It improves the reliability and durability of drainage channels, prevents pipe detachment, enhances drainage efficiency, eliminates safety hazards, and ensures drainage effectiveness.
Smart Images

Figure CN223706256U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a road technology, especially a road drainage technology, in particular to a prefabricated bridge drainage structure installed on a cross road. BACKGROUND
[0002] At present, when a bridge crosses a highway or a railway, in order to avoid the direct discharge of bridge water affecting the safety of the cross road, the bridge drainage usually adopts the PVC longitudinal drainage pipe suspended outside the side beam to collect the bridge water, and the PVC longitudinal drainage pipe is connected with the vertical drainage pipe of the pier to drain to the outside of the cross road. However, through investigation of many highways, it is found that most of the PVC longitudinal drainage pipes of the bridge have poor durability and water leakage at the joint; some PVC longitudinal drainage pipes of the bridge are only connected with the beam body through a clasp ring, which has a safety hazard of falling off; the PVC longitudinal drainage pipe of the bridge is connected with the vertical drainage pipe of the pier by a hard pipe, which cannot adapt to the normal deformation of the bridge structure and causes damage and water leakage. The above drainage methods cannot achieve effective drainage collection effect, and even become a new safety hazard. SUMMARY
[0003] The utility model aims at the problem of unreasonable bridge drainage structure on the cross road and safety hazard, and designs a prefabricated bridge drainage structure which is safe and reliable and easy to manufacture.
[0004] The technical scheme of the utility model is:
[0005] A prefabricated bridge drainage structure is characterized in that a C40 reinforced concrete longitudinal drainage collection channel 2 is synchronously manufactured at the lower part of a main beam 1, the upper part of the C40 reinforced concrete longitudinal drainage collection channel 2 is connected with a cast iron drain pipe embedded in the main beam 1, both ends of the C40 reinforced concrete longitudinal drainage collection channel 2 are connected with the upper end of a PVC corrugated hose 4, the lower end of the PVC corrugated hose 4 is connected with the upper end of a PVC vertical drainage pipe 6 fixed on a pier 5, and the lower end of the PVC vertical drainage pipe 6 is connected with a ground drainage ditch 7.
[0006] The PVC vertical drainage pipe 6 is fixed on the pier 5 through a pipe hanger 8.
[0007] The two ends of the bottom of the C40 reinforced concrete longitudinal drainage collection channel 2 are lower than the middle part, so that the bottom of the C40 reinforced concrete longitudinal drainage collection channel 2 is in an arch shape or a convex arc shape.
[0008] The utility model has the advantages of:
[0009] The longitudinal drainage collection channel made of C40 reinforced concrete is prefabricated simultaneously with the main beam, the reliability and durability of the drainage channel are greatly improved, the safety hidden danger caused by the pipeline falling is completely avoided, the longitudinal slope of the pipeline is arranged, the drainage efficiency is improved, the pipeline silt is reduced, and the risk of bridge ponding caused by poor drainage is reduced.
[0010] The utility model discloses simple structure, easy production can fundamentally improve the drainage effect, thoroughly eliminate the security risk. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the structure front view of the utility model.
[0012] Figure 2 It is Figure 1 The pier sectional view of
[0013] In the drawing: 9 is the road. DETAILED DESCRIPTION
[0014] The utility model will be further described below in combination with the drawings and examples.
[0015] The structure, proportion, size etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by the person skilled in the art, and do not define the limiting conditions that can be implemented by the utility model, so they do not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be produced and achieved by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" etc. cited in the specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of implementation, the change or adjustment of relative relationship, when the technical content is not substantially changed, is also regarded as the scope of implementation of the utility model.
[0016] As Figures 1-2 Indicated.
[0017] A prefabricated bridge drainage structure has a C40 reinforced concrete longitudinal drainage collection channel 2 made synchronously in the lower part of the main beam 1, as Figure 1As shown, the bottom ends of the C40 reinforced concrete longitudinal drainage collection channel 2 are lower than the middle part, thus giving the bottom of the C40 reinforced concrete longitudinal drainage collection channel 2 an arched or convex arc structure. The upper part of the C40 reinforced concrete longitudinal drainage collection channel 2 is connected to the cast iron drain pipe pre-embedded in the main beam 1, and its two ends are connected to the PVC corrugated hose 4 (such as...). Figure 2 The upper end of the PVC corrugated hose 4 is connected to the upper end of the PVC vertical drainage pipe 6 fixed on the bridge pier 5, and the lower end of the PVC vertical drainage pipe 6 is connected to the ground drainage ditch 7. The PVC vertical drainage pipe 6 is fixed to the bridge pier 5 by pipe lifting rings 8 (standard parts, which can be purchased directly from the market or made by oneself).
[0018] The above embodiments are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and equivalent substitutions can be made without departing from the principle of this utility model. All such technical solutions after improvements and equivalent substitutions to the claims of this utility model fall within the protection scope of this utility model.
[0019] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
Claims
1. A prefabricated bridge drainage structure, characterized in that: A C40 reinforced concrete longitudinal drainage collection channel (2) is simultaneously constructed at the lower part of the main beam (1). The upper part of the C40 reinforced concrete longitudinal drainage collection channel (2) is connected to the cast iron drain pipe pre-embedded in the main beam (1). Its two ends are connected to the upper end of the PVC corrugated hose (4). The lower end of the PVC corrugated hose (4) is connected to the upper end of the PVC vertical drainage pipe (6) fixed on the pier (5). The lower end of the PVC vertical drainage pipe (6) is connected to the ground drainage ditch (7).
2. The prefabricated bridge drainage structure according to claim 1, characterized in that: The PVC vertical drainage pipe (6) is fixed to the bridge pier (5) by pipe lifting ring (8).
3. The prefabricated bridge drainage structure according to claim 1, characterized in that: The bottom ends of the C40 reinforced concrete longitudinal drainage collection channel (2) are lower than the middle part, so that the bottom of the C40 reinforced concrete longitudinal drainage collection channel (2) has an arched or convex arc structure.