Bridge end waterproof device and bridge comprising same

Abstract

The utility model discloses a bridge end waterproof device and a bridge comprising the same, and belongs to the technical field of bridge accessories, the bridge end waterproof device comprises two profiles arranged on two sides of an expansion joint respectively, a waterproof rubber belt arranged between the two profiles, and two locking wires. According to the bridge beam end waterproof device, the annular connecting part of the waterproof rubber belt extends into the groove of the sectional material, and the locking wire rod is arranged in the annular connecting part in a penetrating mode, so that the annular connecting part abuts against the inner wall of the groove to achieve a sealing state, and water prevention is achieved; installation can be completed by pulling and installing the annular connecting part and the locking wire rod from the side face of the bridge body, the structure is simple, construction is easy and convenient, construction operation can be conducted on the side face of the bridge body by replacing the waterproof rubber belt in the later period, operation is easy and convenient, and influences on bridge traffic driving can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge accessories, and particularly relates to a bridge beam end waterproof device and a bridge including the same. Background Technique

[0002] A bridge beam end waterproof device is arranged at the expansion joint between adjacent bridges or between the beam body and the abutment, plays a waterproof role in the lower structure, and can adapt to the deformation of the beam body. It is an important component in the upper structure of the bridge. 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 waterproof device usually consists of profiles and waterproof rubber bands. The waterproof rubber band is exposed to direct sunlight, ozone corrosion, high temperature and humid environment for a long time, and is prone to aging after being exposed to wind, sun, rain and snow. It will gradually lose its elasticity, resulting in insufficient clamping force with the profiled steel, and then falling off and losing the waterproof performance, affecting the service life of both the bridge beam end waterproof device and the bridge.

[0004] Therefore, when the waterproof rubber band reaches the service life or is damaged, it needs to be replaced in time. However, in order to achieve the waterproof effect, the outer dimension of the flange of the waterproof rubber band is usually larger than the inner dimension of the groove of the profiled bar, so that the flange of the waterproof rubber band is tightly stuck in the groove of the profile bar, making it very difficult to remove the old waterproof band and install the new one. Moreover, the space at the expansion joint where the bridge beam end waterproof device is installed is narrow, making it even more difficult to replace the waterproof rubber band. It is not difficult to find that the construction process of replacing the waterproof rubber band 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 the bridge traffic. Summary of the Utility Model

[0005] In view of one or more of the above defects or improvement requirements in the prior art, the utility model provides a bridge beam end waterproof device and a bridge including the same, which can realize the waterproof requirement and deformation requirement at the expansion joint of the bridge end with a simple structure, is easy to install or replace at the bridge beam end, and is convenient for later maintenance.

[0006] To achieve the above object, the utility model provides a bridge beam end waterproof device, which includes two profiles respectively arranged on both sides of the expansion joint, a waterproof rubber band arranged between the two profiles, and two locking wires.

[0007] The opposite sides of the two profiles are provided with connecting parts that can be connected to the bridge beam end, and the opposite sides of the two profiles are provided with through grooves.

[0008] Both ends of the waterproof rubber band are provided with annular connection parts, and the two annular connection parts respectively extend into the grooves of the two profiles. The two locking wire rods are respectively arranged in the two annular connection parts so that the annular connection parts are in contact with the inner walls of the grooves.

[0009] As a further improvement of the present utility model, the waterproof rubber band further includes a telescopic part, and the cross-section of the telescopic part is circular or wavy.

[0010] As a further improvement of the present utility model, the thickness of the waterproof rubber band between the telescopic part and the annular connection part is less than the height of the opening of the groove.

[0011] As a further improvement of the present utility model, the height of the opening of the groove is less than the maximum height of the locking wire rod.

[0012] As a further improvement of the present utility model, the cross-section of the locking wire rod is circular, and the diameter of the locking wire rod is greater than the diameter of the inner cavity of the annular connection part.

[0013] As a further improvement of the present utility model, the connection part of the profile is connected to the bridge beam body through a connecting piece.

[0014] As a further improvement of the present utility model, the connecting piece is an anchoring steel bar, one end of the anchoring steel bar is connected to the connection part of the profile, and the other end is anchored in the bridge beam body.

[0015] As a further improvement of the present utility model, the locking wire rod is a high-strength prestressed steel bar.

[0016] As a further improvement of the present utility model, the connection part and the groove are arranged in a staggered manner, and the connection part is within the height range of the inner cavity of the groove.

[0017] In another aspect of the present utility model, a bridge is provided, and the two ends of the expansion joint at the beam end of the bridge are connected by the above-mentioned high-durability bridge beam end waterproof device.

[0018] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0019] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0020] (1) The utility model of the bridge beam end waterproof device comprises two profiles arranged on both sides of the expansion joint, a waterproof rubber belt arranged between the two profiles, and two locking wires, and an annular connection part is arranged at both ends of the waterproof rubber belt, which is passed through the groove of the profile through the annular connection part, and the locking wire is passed through the annular connection part, so that the annular connection part and the inner wall of the groove are abutted to achieve a sealed state, thereby realizing the waterproof function. The device can be installed by pulling the annular connection belt and the locking wire from the side of the beam body. It has a simple structure and is easy to construct. The waterproof rubber belt can also be replaced on the side of the beam body at a later time. The construction work is relatively simple and can also avoid affecting the traffic on the bridge.

[0021] (2) The bridge beam end waterproofing device of the utility model limits the height of the groove opening to be greater than the thickness of the waterproof rubber belt between the telescopic part and the annular connecting part, thereby facilitating the installation of the annular connecting part into the groove of the profile from the side of the profile; the height of the groove opening is less than the maximum height of the locking wire, thereby ensuring the reliability of the connection between the waterproof rubber belt and the profile.

[0022] (3) The bridge beam end waterproofing device of the utility model sets the cross-section of the locking wire to a circle, which limits the diameter of the locking wire to be larger than the diameter of the inner cavity of the annular connection part, thereby ensuring that the locking wire fully squeezes the annular connection part to abut against the inside of the groove, ensuring the tightness of the connection between the profile and the waterproof rubber belt, and ensuring the waterproof performance of the device.

[0023] (4) The bridge beam end waterproofing device of the utility model can save the space occupied by the two and further reduce the required volume of the profile by staggering the connection part and the groove, and the connection part is located within the height range of the inner cavity of the groove.

[0024] (5) The bridge beam end waterproofing device of the utility model 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, and the subsequent maintenance will not affect the bridge deck traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a structural schematic diagram of a bridge beam end waterproof device in an embodiment of the utility model;

[0027] Figure 2It is a cross-sectional view of the waterproof rubber band in the preferred embodiment of the present utility model;

[0028] Figure 3 It is a cross-sectional view of the waterproof rubber band in another preferred embodiment of the present utility model;

[0029] Figure 4 It is a structural schematic diagram of the profile in the embodiment of the present utility model;

[0030] Figure 5 It is an installation schematic diagram of the bridge beam end waterproof device on the bridge in the embodiment of the present utility model.

[0031] In all the drawings, the same reference numerals represent the same technical features, specifically: 1, profile; 11, connecting part; 12, groove; 2, waterproof rubber band; 21, annular connecting part; 22, telescopic part; 3, locking wire; 4, connecting piece; 5, beam end. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0037] Embodiment:

[0038] Please refer to Figures 1 to 5 , the waterproof device for the bridge beam end in the preferred embodiment of the present utility model includes two profiles 1 respectively arranged on both sides of the expansion joint, a waterproof rubber strip 2 arranged between the two profiles 1, and two locking wire rods 3.

[0039] Wherein, connection parts 11 capable of connecting with the bridge beam end are arranged on the opposite sides of the two profiles 1, and a through groove 12 is arranged on the opposite sides of the two profiles 1; annular connection parts 21 are arranged at both ends of the waterproof rubber strip 2, and the two annular connection parts 21 respectively extend into the grooves 12 of the two profiles 1, and the two locking wire rods 3 respectively pass through the two annular connection parts 21 so that the annular connection parts 21 are abutted against the inner walls of the grooves 12.

[0040] In this preferred embodiment, by passing the annular connection part 21 through the groove 12 and passing the locking wire rod 3 through the annular connection part 21, the waterproof rubber strip 2 is tightly connected with the two profiles 1, and the connection part between the two reaches a sealed state, preventing water seepage, and can fully ensure the waterproof function of the device.

[0041] Specifically, the installation process of the waterproof device at the beam end of the bridge is as follows: Two profiles 1 are respectively connected to the beam ends 5 on both sides of the expansion joint through the connecting parts 11. On the side of the profile 1 (which is also the side of the beam body), the annular connecting part 21 of the traction waterproof rubber belt 2 is inserted into the groove 12 of the profile 1. Further, the locking wire 3 is traction-inserted into the inner circle of the annular connecting part 21. The locking wire 3 squeezes the annular connecting part 21 to make the annular connecting part 21 closely adhere to the inner cavity of the groove 12, thereby achieving the waterproof effect. In addition, when the waterproof rubber belt 2 ages or is damaged, the locking wires 3 in the profiles 1 at both beam ends can be pulled out on the side of the beam body, the waterproof rubber belt 2 can be pulled out, a new waterproof rubber belt 2 can be replaced, and then the locking wire 3 can be inserted into the annular connecting part 21. The replacement operation is simple and convenient, the construction cost is low, and the impact on the traffic of the bridge can be avoided.

[0042] Furthermore, the waterproof rubber belt 2 further includes a telescopic part 22 to adapt to the telescopic deformation of the bridge at the expansion joint. The cross-section of the telescopic part 22 is preferably circular or wavy. Of course, the cross-section of the telescopic part 22 can also be oval or V-shaped, etc., and its specific shape is not limited.

[0043] Preferably, for the waterproof device at the beam end used for the straight section of the bridge, the cross-section of the telescopic part 22 is preferably circular, and the number of circular rings is several. Refer to Figure 2 ; for the waterproof device at the beam end used for the curved section of the bridge, the cross-section of the telescopic part 22 is preferably wavy. Refer to Figure 3 .

[0044] Furthermore, the thickness of the waterproof rubber belt between the telescopic part 22 and the annular connecting part 21 is less than the height of the opening of the groove 12, so as to facilitate the installation of the annular connecting part 21 into the groove 12 of the profile 1 from the side of the profile 1.

[0045] Preferably, the height of the opening of the groove 12 is less than the maximum height of the locking wire 3, to prevent the waterproof rubber belt 2 from pulling the annular connecting part 21 out of the groove 12 of the profile 1 when tensile deformation occurs, and to ensure the reliability of the connection between the waterproof rubber belt 2 and the profile 1.

[0046] Exemplarily, when the cross-section of the locking wire 3 is circular, its maximum height is its diameter.

[0047] Preferably, the cross-section of the locking wire 3 is circular, and the diameter of the locking wire 3 is greater than the diameter of the inner cavity of the annular connecting part 21. The locking wire 3 can fill the circular ring of the annular connecting part 21 and squeeze the annular connecting part 21 from the inside to closely adhere to the inner cavity of the groove 12 of the profile 1. During the traction process of the locking wire 3, the annular connecting part 21 is fully expanded, which can effectively reduce the traction resistance of the locking wire 3.

[0048] Further, the connecting portion 11 of the profile 1 is connected to the bridge girder through a connecting member 4.

[0049] Exemplarily, the connecting member 4 is an anchor reinforcement. One end of the anchor reinforcement is connected to the connecting portion 11 of the profile 1, and the other end is anchored in the bridge girder.

[0050] Specifically, threaded blind holes are arranged at intervals on the connecting portion 11 of the surface of the special-shaped profile 1. The anchor reinforcement has an L-shaped structure and is provided with threads at one end for mating with the profile 1. The special-shaped profile 1 and the anchor reinforcement are connected by threads.

[0051] Preferably, the locking wire 3 is a high-strength prestressed steel bar, and can also be a steel wire rope or a cable, etc. It has a large radial stiffness and is relatively flexible axially.

[0052] Further, the connecting portion 11 and the groove 12 are arranged in an alternating manner, and the connecting portion 11 is located within the height range of the inner cavity of the groove 12. By reasonably arranging the positions of the connecting portion 11 and the groove 12, the space occupied by the two can be saved, and the required volume of the profile 1 can be reduced.

[0053] In a specific embodiment, the inner cavity of the groove 12 has a symmetry plane A-A parallel to the bridge deck. For example, the inner cavity of the groove 12 is diamond-shaped or circular, etc. The connecting portion 11 is located above or below the plane A-A and does not exceed the height range of the inner cavity of the groove 12.

[0054] Further, a preferred embodiment provides a bridge, as Figure 5 shown. The expansion joint at the beam end of this bridge is connected by the above-mentioned waterproof device at the beam end of the bridge.

[0055] In actual setting, the profile 1 and the locking wire 3 are symmetrically arranged at the beam ends 5 on both sides of the expansion joint. One end of the anchor reinforcement is connected to the connecting portion 11 of the profile 1, and the other end is anchored in the concrete of the beam end 5. The annular connecting portions 21 at both ends of the waterproof rubber strip 2 are hermetically connected to the groove 12 of the profile 1. The locking wire 3 is passed through the annular connecting portion 21 of the waterproof rubber strip 2 so that the annular connecting portion 21 abuts against the inner wall of the groove 12. The waterproof device at the beam end of this bridge has a simple structure, convenient construction, is easy to install or replace at the beam end of the bridge, and the later maintenance is not affected by the facilities on the bridge deck.

[0056] The waterproof device at the end of the bridge beam in the present utility model realizes waterproofing by passing the annular connection part 21 of the waterproof rubber band 2 through the groove 12 of the profile 1 and passing the locking wire 3 through the annular connection part 21, so that the annular connection part 21 abuts against the inner wall of the groove 12 to reach a sealed state. This device can be installed by pulling the annular connection part 21 and the locking wire 3 from the side of the bridge beam body. The structure is simple and the construction is convenient. The waterproof rubber band 2 can also be replaced later by carrying out construction operations on the side of the beam body, which is relatively simple and can also avoid affecting the traffic of the bridge.

[0057] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A waterproof device for the end of a bridge beam, comprising two profiles respectively arranged on both sides of the expansion joint, a waterproof rubber band arranged between the two profiles, and two locking wire rods, characterized in that connection parts capable of connecting with the end of the bridge beam are arranged on the opposite sides of the two profiles, and through grooves are arranged on the opposite sides of the two profiles; annular connection parts are arranged at both ends of the waterproof rubber band, the two annular connection parts respectively extend into the grooves of the two profiles, and the two locking wire rods respectively penetrate through the two annular connection parts to make the annular connection parts abut against the inner walls of the grooves.

2. The bridge beam end waterproof device according to claim 1, wherein, The waterproof rubber band further comprises a telescopic part, and the cross section of the telescopic part is circular or wavy.

3. The waterproof device for the bridge beam end according to claim 2, characterized in that, The thickness of the waterproof rubber band between the telescopic part and the annular connection part is smaller than the height of the opening of the groove.

4. The waterproof device for the end of a bridge beam according to claim 3, characterized in that, The height of the opening of the groove is smaller than the maximum height of the locking wire rod.

5. The bridge beam end waterproof device according to claim 4, characterized in that, The cross section of the locking wire rod is circular, and the diameter of the locking wire rod is larger than the diameter of the inner cavity of the annular connection part.

6. The waterproof device for the bridge beam end according to any one of claims 1 to 5, characterized in that, The connection part of the profile is connected to the bridge beam body through a connecting piece.

7. The bridge beam end waterproof device according to claim 6, characterized in that, The connecting piece is an anchor reinforcement, one end of the anchor reinforcement is connected to the connection part of the profile, and the other end is anchored in the bridge beam body.

8. The waterproof device for the end of a bridge beam according to claim 1, characterized in that, The locking wire rod is a high-strength prestressed steel bar.

9. The bridge beam end waterproof device according to any one of claims 1 to 5, 7 to 8, characterized in that, The connection part and the groove are arranged staggeredly, and the connection part is within the height range of the inner cavity of the groove.

10. A bridge, characterized in that, The expansion joint at the end of the bridge beam is connected by using the waterproof device for the end of the bridge beam according to any one of claims 1 to 9.

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