Durable bridge end waterproof device and bridge comprising same

Abstract

The utility model discloses a durable bridge beam end waterproof device, which belongs to the technical field of bridge waterproof devices, and comprises two profiles respectively arranged on two sides of an expansion joint and a waterproof strip arranged between the two profiles, the waterproof strip is provided with an expansion part and a platform part, and the platform part can be connected with the two profiles to form an integral waterproof device. The whole waterproof device can be connected to the portions, on the two sides of the expansion joint, of the bridge body through the connecting parts arranged on the side faces of the sectional materials, the waterproof strips are further made of stainless steel materials, the contraction parts of the waterproof strips can form a waterproof structure at the expansion joint, and the deformation requirement of the expansion joint of the bridge can be met. According to the durable bridge beam end waterproof device, the selected materials are cheap, the waterproof quality and durability of the waterproof device can be improved, the structure is simple, construction is easy and convenient, installation or replacement at the bridge beam end is easy, and the construction cost and the later maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge waterproof devices, and in particular relates to a durable bridge beam end waterproof device and a bridge comprising the same. Background Art

[0002] The bridge beam end waterproof device is installed at the expansion joint between adjacent bridges or between the beam and the abutment, which plays a waterproof role for the lower structure and can adapt to the deformation of the beam. It is an important component in the bridge superstructure. The bridge beam end waterproof device plays an important role in the expansion and waterproof performance of the bridge end. Its quality and waterproof performance will directly affect the durability of the bridge.

[0003] At present, the commonly used bridge beam end waterproofing devices are usually composed of profiles and waterproof rubber belts. The waterproof rubber belts are exposed to direct sunlight, ozone corrosion, high temperature, and humid environment for a long time. They are prone to aging due to wind and sun exposure, and will gradually lose elasticity, resulting in insufficient clamping force with the steel, and then falling off and losing waterproof performance, which affects the service life of the bridge beam end waterproofing device and the bridge.

[0004] Therefore, when the waterproof rubber belt reaches its service life or is damaged, it needs to be replaced in time. However, in order to achieve the waterproof effect, the outer size of the flange of the waterproof rubber belt is usually larger than the inner size of the groove of the profile, so that the flange of the waterproof rubber belt is tightly stuck in the groove of the profile, which makes it very difficult to remove the old waterproof belt and install the new waterproof belt. In addition, the space at the expansion joint where the waterproof device at the end of the bridge beam is installed is narrow, making it even more difficult to replace the waterproof rubber belt. It is not difficult to find that the construction process of replacing the waterproof rubber belt of the commonly used bridge beam end waterproof device is relatively cumbersome and takes a long time, which will not only increase the maintenance cost of the waterproof device, but also have a certain impact on bridge transportation. Utility Model Content

[0005] In response to one or more of the above defects or improvement needs in the prior art, the utility model provides a durable bridge beam end waterproofing device, which achieves the waterproofing and deformation requirements at the expansion joints at the ends of the bridge with a simple structure. The materials used can improve the waterproofing quality and durability of the beam end waterproofing structure, and can be easily installed and replaced at the bridge beam ends, reducing construction costs and subsequent maintenance costs.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a durable bridge beam end waterproof device, comprising two profiles arranged on both sides of the expansion joint and a waterproof strip arranged between the two profiles.

[0007] The two sides of the two profiles that are separated from each other are provided with connecting parts that can be connected to the bridge beam body;

[0008] The waterproof strip is made of stainless steel and comprises a telescopic portion and a platform portion, and the platform portion is detachably connected to the two profiles.

[0009] As a further improvement of the present invention, the cross-section of the telescopic portion of the waterproof strip is arranged to be V-shaped, U-shaped or wavy;

[0010] and / or,

[0011] Both ends of the waterproof strip are provided with raised parts.

[0012] As a further improvement of the present invention, the two opposite sides of the profiles are respectively provided with mounting grooves penetrating the top surfaces thereof, and the platform portion of the waterproof strip is pressed tightly in the mounting groove of the profile by a pressure strip.

[0013] As a further improvement of the utility model, the waterproof strip is provided with bending parts on both sides of the platform part.

[0014] As a further improvement of the utility model, a cavity is provided below the installation groove of the profile.

[0015] As a further improvement of the present invention, the pressure strip, the waterproof strip and the profile are connected together by a first connecting piece.

[0016] As a further improvement of the present invention, the bottom of the first connecting member can extend to the cavity of the profile;

[0017] and / or,

[0018] The top of the first connecting member does not exceed the top of the pressure strip.

[0019] As a further improvement of the utility model, a sealing strip is provided between the platform portion of the waterproof strip and the mounting groove of the profile.

[0020] As a further improvement of the present invention, the connecting portion of the profile is connected to the bridge beam through a second connecting piece.

[0021] Another aspect of the utility model provides a bridge, wherein both ends of the expansion joint at the end of the bridge beam are connected by using the above-mentioned durable bridge beam end waterproofing device.

[0022] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0024] (1) The durable bridge beam end waterproof device of the utility model comprises two profiles arranged on both sides of the expansion joint and a waterproof strip arranged between the two profiles. The waterproof strip is provided with a telescopic portion and a platform portion. The platform portion can be connected with the two profiles to form an integral waterproof device, and the integral waterproof device can be connected to the bridge beam body on both sides of the expansion joint through the connecting portion arranged on the side of the profile. The waterproof strip is made of stainless steel, so that the contraction portion of the waterproof strip can form a waterproof structure at the expansion joint and can also meet the deformation requirements of the bridge expansion joint. The structure is simple and easy to install, and the durability of the beam end waterproof structure can be improved.

[0025] (2) The durable bridge beam end waterproofing device of the utility model sets the cross-section of the telescopic portion of the waterproof strip into a V-shape, a U-shape or a wave shape, and utilizes the good elastic-plastic properties of the stainless steel material so that the telescopic portion of the waterproof strip can well adapt to the telescopic deformation at the expansion joint.

[0026] (3) The durable bridge beam end waterproofing device of the utility model has installation grooves penetrating the top surfaces of two profiles respectively provided on opposite sides thereof, and uses a pressure strip to press the platform portion of the waterproofing strip into the installation groove of the profile, so as to enhance the tightness of the connection between the platform portion of the waterproofing strip and the profile, thereby improving the waterproofing performance.

[0027] (4) The durable bridge beam end waterproof device of the utility model connects the pressure strip, the waterproof strip and the profile together through a first connecting member to form a waterproof device as a whole, and connects the waterproof device to the bridge beam body through a second connecting member to form a waterproof structure at the expansion joint. A sealing strip is further provided between the platform portion of the waterproof strip and the installation groove of the profile to enhance the sealing effect, prevent rainwater from leaking from between the waterproof strip and the profile to damage the lower structure of the beam body, and improve the waterproof quality.

[0028] (5) The durable bridge beam end waterproof device of the utility model uses cheap materials and can improve the waterproof quality and durability of the waterproof device. It has a simple structure and is easy to construct. It is easy to install or replace at the bridge beam end, which can reduce construction costs and subsequent maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of a durable bridge beam end waterproof device in an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the waterproof strip in the embodiment of the utility model;

[0032] Figure 3 It is a partial side view of the waterproof strip in the embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the profile in the embodiment of the utility model;

[0034] Figure 5 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0035] Figure 6 It is a schematic diagram of the installation of a durable bridge beam end waterproof device on a bridge in an embodiment of the utility model.

[0036] In all the drawings, the same figure numbers represent the same technical features, specifically: 1. profile; 11. connecting part; 12. installation groove; 13. cavity; 2. waterproof strip; 21. platform part; 22. telescopic part; 23. bending part; 24. raised part; 3. pressure strip; 4. first connecting member; 5. sealing tape; 6. second connecting member; 7. beam body. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] Example:

[0043] See also Figure 1 to Figure 6 The durable bridge beam end waterproof device in the preferred embodiment of the utility model includes two profiles 1 arranged on both sides of the expansion joint and a waterproof strip 2 arranged between the two profiles 1.

[0044] The waterproof strip 2 is preferably made of stainless steel and includes a telescopic portion 22 and a platform portion 21. Figure 2 As shown, the platform portion 21 is detachably connected to the two profiles 1. In this preferred embodiment, the waterproof strip 2 is made of stainless steel, which has excellent corrosion resistance and can extend the service life of the waterproof strip 2 in a rainy environment. At the same time, the stainless steel material also has good elasticity and plasticity, so that the telescopic portion 22 of the waterproof strip 2 can well adapt to the telescopic deformation at the expansion joint.

[0045] In a preferred embodiment, the platform portion 21 and the profile 1 can be connected by bonding, welding, or by using a connecting piece.

[0046] Preferably, the cross section of the expansion portion 22 is preferably configured to be V-shaped, U-shaped or wavy, so as to achieve tensile and compressive deformation at the expansion joint.

[0047] In a preferred embodiment, both ends of the waterproof strip 2 are provided with raised portions 24, such as Figure 3 As shown, it is to prevent the accumulated water from flowing out from both ends of the waterproof strip 2, flowing to the flange of the beam body 7 and under the bridge, washing the beam body 7 and the piers, damaging the bridge bearings and other ancillary facilities, and affecting the life of the bridge.

[0048] Specifically, the highest point of the raised portion 24 is preferably 90 mm or more higher than the highest point of the profile 1 .

[0049] Further preferably, the two profiles 1 are provided with connecting portions 11 which can be connected to the bridge beam body on the opposite sides thereof.

[0050] Specifically and preferably, the connection portion 11 can be a steel bar fixed to the side of the profile 1 and formed as one body with the profile 1. The steel bar is preferably distributed along the length direction of the profile 1 and can be fixedly connected to the beam body 7 during the construction of the beam body 7.

[0051] In another preferred embodiment, the connection portion 11 may be a groove opened along the length direction of the profile 1 , and is snap-connected with a component reserved during the construction of the beam body 7 .

[0052] Preferably, the profile 1 is made of aluminum alloy material, which has high strength and good corrosion resistance and is not easy to rust when used for a long time in the natural environment.

[0053] Furthermore, the connection portion 11 of the profile 1 is preferably connected to the bridge beam 7 via a second connection member 6 .

[0054] Preferably, if Figure 4 As shown, the connection portion 11 is preferably a plurality of grooves opened along the length direction of the profile 1, and the second connection member 6 is preferably an anchoring steel bar, one end of which is connected to the groove and the other end is anchored in the beam body.

[0055] In the specific setting, the groove connection method between the anchor steel bar and the profile 1 is preferably: a nut matching the groove shape is installed in the groove, the threaded end of the anchor steel bar is connected to the nut, and washers and fastening nuts are sequentially arranged on the anchor steel bar outside the groove to lock the anchor steel bar and the profile 1 together.

[0056] Further preferably, the two profiles 1 are respectively provided with mounting grooves 12 penetrating the top surfaces thereof on the opposite sides, and the platform portion 21 of the waterproof strip 2 is pressed tightly in the mounting groove 12 of the profile 1 by the pressure strip 3 .

[0057] In a preferred embodiment, the mounting groove 12 is opened from one end to the other end along the length direction of the profile 1, and the shape and size of the pressure strip 3 preferably match the mounting groove 12 so that the platform portion 21 of the waterproof strip 2 can be completely pressed into the mounting groove 12 of the profile 1 along the length direction of the profile 1.

[0058] Preferably, see Figure 2 The waterproof strip 2 is provided with bending portions 23 on both sides of its platform portion 21. After being rotated and fixed, the bending portions 23 are located between the pressure strip 3 and the side elevation of the profile 1, and can be hooked on the side of the pressure strip 3 to prevent the waterproof strip 2 from falling off from the middle of the profile 1 and the pressure strip 3, making the waterproof structure more stable.

[0059] Further preferably, a cavity 13 is provided below the mounting groove 12 of the profile 1 to reduce the weight of the profile 1 and lower the cost.

[0060] Specifically, the cavity 13 preferably extends to both ends of the profile 1 along the length direction of the profile 1 but is not connected to the outside, that is, the cavity 13 is a closed cavity to prevent external rainwater from penetrating into the interior of the profile 1.

[0061] Furthermore, the pressure strip 3 , the waterproof strip 2 and the profile 1 are connected together via a first connecting member 4 .

[0062] In actual settings, the first connecting member 4 is preferably an adhesive, which tightly bonds the contact surface between the profile 1 and the waterproof strip 2 and the contact surface between the waterproof strip 2 and the pressure strip 3 together.

[0063] In another preferred embodiment, see Figure 5 The first connecting member 4 is preferably a fastener, including but not limited to: bolts, studs, screws, nuts, washers, retaining rings, pins, rivets, welding nails, etc.

[0064] In a specific preferred embodiment, a plurality of through holes are provided on the platform portion 21 of the waterproof strip 2, and a plurality of holes are respectively provided at the corresponding contact points between the pressure strip 3, the profile 1 and the through holes of the platform portion 21. The through holes and the corresponding holes are connected together in sequence by fasteners.

[0065] Furthermore, the bottom of the first connecting member 4 can preferably extend to the cavity 13 of the profile 1 to strengthen the connection between the pressure strip 3 , the waterproof strip 2 and the profile 1 .

[0066] In a specific preferred embodiment, a hole connected to the cavity 13 is opened under the installation groove 12 of the profile 1, so that the first connecting member 4 can extend into the cavity 13 along the hole.

[0067] Furthermore, the top of the first connecting member 4 preferably does not exceed the top of the pressure strip 3 to avoid affecting the flatness of the bridge deck.

[0068] In a specific preferred embodiment, a through hole and a countersunk hole are opened on the pressure strip 3. The through hole allows the lower part of the first connecting member 4 to pass through, and the countersunk hole can accommodate the top of the first connecting member 4, so that the top of the first connecting member 4 does not exceed the top of the pressure strip 3 after installation.

[0069] In a preferred embodiment, the durable bridge beam end waterproofing device also includes a sealing strip 5, which is arranged between the platform portion 21 of the waterproof strip 2 and the mounting groove 12 of the profile 1 to improve the waterproofing quality and prevent rainwater from entering the expansion joint from between the platform portion 21 and the mounting groove 12 to damage the lower structure of the beam body.

[0070] Preferably, the sealing belt 5 is made of polytetrafluoroethylene or expanded polytetrafluoroethylene, which has good durability and is not easy to age.

[0071] Furthermore, a preferred embodiment provides a bridge, wherein both ends of the expansion joint at the end of the bridge beam are connected using the above-mentioned durable bridge beam end waterproofing device.

[0072] During actual setting, after the waterproof device is installed at the expansion joint, the expansion parts 22 at both ends of the waterproof strip 2 are preferably higher than the bridge deck, so that rainwater gathers in the expansion parts 22 of the waterproof strip 2 and overflows to the bridge deck and is discharged through the drainage facilities of the bridge deck to prevent the accumulated water from flowing out from both ends of the waterproof strip 2, flowing to the flange of the beam 7 and under the bridge, washing the beam 7 and the piers, damaging the bridge bearings and other ancillary facilities, and affecting the life of the bridge.

[0073] The durable bridge beam end waterproof device of the utility model adopts cheap materials and can improve the waterproof quality and durability of the waterproof device. It has a simple structure and is easy to construct. It is easy to install or replace at the bridge beam end, which can reduce construction costs and subsequent maintenance costs.

[0074] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A durable bridge beam end waterproof device, comprising two profiles arranged on both sides of the expansion joint and a waterproof strip arranged between the two profiles, characterized in that: The two sides of the two profiles that are separated from each other are provided with connecting parts that can be connected to the bridge beam body; The waterproof strip is made of stainless steel and comprises a telescopic portion and a platform portion, and the platform portion is detachably connected to the two profiles.

2. The durable bridge beam end waterproof device according to claim 1, characterized in that: The cross-section of the telescopic portion of the waterproof strip is arranged to be V-shaped, U-shaped or wavy; and / or, Both ends of the waterproof strip are provided with raised parts.

3. The durable bridge beam end waterproof device according to claim 1 or 2, characterized in that: The two opposite sides of the two profiles are respectively provided with mounting grooves penetrating the top surfaces thereof, and the platform portion of the waterproof strip is pressed tightly in the mounting groove of the profile through a pressure strip.

4. The durable bridge beam end waterproof device according to claim 3, characterized in that: The waterproof strip is provided with bending parts on both sides of the platform part.

5. The durable bridge beam end waterproof device according to claim 3, characterized in that: A cavity is arranged below the installation groove of the profile.

6. The durable bridge beam end waterproof device according to claim 5, characterized in that: The pressure strip, the waterproof strip and the profile are connected together through a first connecting piece.

7. The durable bridge beam end waterproof device according to claim 6, characterized in that: The bottom of the first connecting member can extend into the cavity of the profile; and / or, The top of the first connecting member does not exceed the top of the pressure strip.

8. The durable bridge beam end waterproof device according to any one of claims 5 to 7, characterized in that: A sealing strip is arranged between the platform portion of the waterproof strip and the mounting groove of the profile.

9. The durable bridge beam end waterproof device according to any one of claims 4 to 7, characterized in that: The connecting portion of the profile is connected in the bridge beam through a second connecting piece.

10. A bridge, characterized in that: The expansion joint at the end of the bridge beam is connected by using the durable bridge beam end waterproofing device described in any one of claims 1 to 9.

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