Durable bridge end waterproof device

Abstract

The utility model discloses a durable bridge end waterproof device, which belongs to the technical field of bridge waterproof devices, and comprises two section bars respectively arranged on two sides of an expansion joint, a waterproof strip arranged between the two section bars, and two pressing strips, the connecting parts on the two sides of the waterproof strip are pressed on the side walls of the two trapezoidal grooves respectively through the two pressing strips in the extending direction of the expansion joint, so that no gap exists between the waterproof strip and the sectional material, and rainwater is prevented from leaking from the connecting position of the waterproof strip and the sectional material and flowing into the bridge floor; the contraction part of the waterproof strip can form a waterproof structure at the expansion joint, and the deformation requirement of the expansion joint of the bridge can be met. The durable bridge beam end waterproof device is simple in structure and convenient to install, the waterproof strip material has good waterproof quality and durability, the durability of a beam end waterproof structure can be improved, and construction cost and later maintenance cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge waterproof device technical field, concretely relates to a durable bridge beam end waterproof device. BACKGROUND

[0002] Bridge beam end waterproof device is the device that is arranged between adjacent bridges or the expansion joint between beam body and abutment, plays waterproof effect to lower structure and can adapt to beam body deformation, is the important component in bridge superstructure. Bridge beam end waterproof device plays an important role in bridge end expansion and waterproof performance, and the quality and waterproof performance will directly affect the durability of bridge.

[0003] The commonly used bridge beam end waterproof device currently usually is composed of sectional material and waterproof rubber belt. The waterproof rubber belt is exposed to the sunlight, ozone corrosion, high temperature and humid environment for a long time, and is easy to appear aging phenomenon by wind and sun, and gradually loses elasticity, so that the clamping force with the sectional steel is insufficient, and then the waterproof performance is lost. The damage or falling of rubber sealing belt makes the waterproof device lose waterproof performance, which will cause water leakage, flow along the beam end surface to the beam bottom, cause corrosion to the beam body and support facilities, damage the safety and stability of bridge, and affect the service life of bridge. The quick replacement waterproof device can replace the waterproof strip during the operation of bridge, but a large amount of manpower, material resources and time are needed to investigate the leakage of bridge, and some places with slight leakage are not easy to be found, which is easy to cause missed detection. And the waterproof device is in the middle of the beam joint, which is not easy to observe, and is not easy to investigate in the early stage of leakage, and many waterproof devices replace the rubber belt after leakage, and the corrosion of beam body and support will also occur if the phenomenon is not found in time. UTILITY MODEL CONTENTS

[0004] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides a durable bridge beam end waterproof device, which is convenient to install at the expansion joint, realizes the waterproof demand and deformation demand of the bridge end expansion joint with a simple structure, the used material can improve the waterproof quality and durability of the beam end waterproof structure, and can reduce construction cost and later maintenance cost.

[0005] To achieve the above object, the utility model provides a durable bridge beam end waterproof device, which comprises two sectional materials arranged on both sides of the expansion joint and a waterproof strip arranged between the two sectional materials, and two pressing strips.

[0006] The waterproof strip is made of stainless steel material and comprises an expansion part and connecting parts arranged on both sides of the expansion part.

[0007] Two profiles are respectively provided with trapezoidal grooves along the extending direction of the profiles, the trapezoidal grooves are open towards one side of the expansion joint, the pressing strip is fixed in the trapezoidal grooves, and the connecting parts on both sides of the waterproof strip are respectively pressed on the side walls of the two trapezoidal grooves.

[0008] As a further improvement of the utility model, the bottom surface of the trapezoidal groove is provided with an elongated groove at the connecting part between the bottom surface and the side surface of the connecting part along the extending direction of the connecting part, the connecting part is provided with a reinforcing segment, and the reinforcing segment extends into the elongated groove.

[0009] As a further improvement of the utility model, the side surfaces of the two profiles away from each other are respectively provided with special-shaped cavities, and the special-shaped cavities are fixedly connected with the bridge body through first connecting pieces.

[0010] As a further improvement of the utility model, the pressing strip is fixedly connected with the profiles through second connecting pieces.

[0011] As a further improvement of the utility model, the second connecting pieces are rivets, one end of the rivets is in abutment with the inner wall surface of the special-shaped cavity, and the other end is in abutment with the top surface of the pressing strip.

[0012] As a further improvement of the utility model, a sealing strip is arranged between the side surface of the connecting part and the side wall of the trapezoidal groove.

[0013] and / or,

[0014] A sealing strip is arranged between the side surface of the connecting part and the side wall of the trapezoidal groove.

[0015] As a further improvement of the utility model, a sealing strip is arranged between the side surface of the pressing strip away from the waterproof strip and the side wall of the trapezoidal groove.

[0016] As a further improvement of the utility model, the waterproof strip is provided with a raised part at both ends along the length direction of the waterproof strip.

[0017] As a further improvement of the utility model, the pressing strip and / or the profiles are made of stainless steel.

[0018] As a further improvement of the utility model, the cross section of the expansion part is provided in a V shape, a U shape or a wave shape.

[0019] The above technical features can be combined with each other as long as they do not conflict with each other.

[0020] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0021] (1) The utility model discloses a durable bridge beam end waterproof device, including two section bars arranged at the both sides of expansion joint and waterproof strip arranged between the two section bars, and two pressing strips, waterproof strip is provided with expansion part and connecting part, and the connecting part of waterproof strip is pressed on the side wall of two trapezoidal grooves through two pressing strips along the extension direction of expansion joint, so that there is no gap between waterproof strip and section bar, to prevent rainwater from leaking into the bridge deck below from the connecting part of waterproof strip, avoid the harm of rainwater to bridge body and its auxiliary facilities, and waterproof strip is made of stainless steel material, so that the expansion part of waterproof strip can form waterproof structure at expansion joint, and the deformation demand of bridge expansion joint can be satisfied, and the durability of beam end waterproof structure can be improved.

[0022] (2) The utility model discloses a durable bridge beam end waterproof device, which forms a reinforcing segment by bending the outermost side of the connecting part and extends into the elongated groove of the section bar, and hooks in the elongated groove of the section bar, to reinforce the connection between the waterproof strip and the section bar, prevent the connecting part of the waterproof strip from falling off from the trapezoidal groove, and ensure the stability of the structure.

[0023] (3) The utility model discloses a durable bridge beam end waterproof device, which is fixed by riveting the pressing strip and the section bar with a closed rivet, and the closed rivet has the properties of waterproof, anti-vibration, high tensile strength and high shear strength, so that the tightness of the connection between the pressing strip and the section bar can be ensured, and the connecting part can be pressed tightly on the side wall of the trapezoidal groove.

[0024] (4) The utility model discloses a durable bridge beam end waterproof device, the special-shaped cavity of the section bar is the connecting part of the section bar and the beam body, and also the connecting part of the section bar and the pressing strip, by fully utilizing the space of the special-shaped cavity, the volume of the section bar is reduced, the space occupied by the section bar is further reduced, the construction at the narrow expansion joint is facilitated, and the weight and cost of the section bar are also reduced.

[0025] (5) The utility model discloses a durable bridge beam end waterproof device, which is made of cheap material and can improve the waterproof quality and durability of the waterproof device, has simple structure, is easy to construct and install at the beam end of the bridge, and can reduce the construction and maintenance costs. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1It is the overall structure schematic diagram of the durable bridge beam end waterproof device in the embodiment of the utility model;

[0028] Figure 2 It is the structure schematic diagram of the section bar in the embodiment of the utility model;

[0029] Figure 3 It is the cross section schematic diagram of the waterproof strip in the embodiment of the utility model;

[0030] Figure 4 It is the local side view of the waterproof strip in the embodiment of the utility model;

[0031] Figure 5 It is Figure 1 The enlarged schematic diagram of A in the middle.

[0032] In all the drawings, same reference signs represent same technical features, specifically: 1, section bar;11, trapezoidal groove;12, special-shaped cavity;13, elongated groove;2, waterproof strip;21, telescopic part;22, connecting part;221, reinforcing section;23, upwarping part;3, pressing strip;4, first connecting piece;5, second connecting piece;6, sealing band;7, sealing strip. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below by combining with the 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 there is no conflict.

[0034] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by 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" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0036] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] Embodiment:

[0039] Please refer to Figures 1-5 The durable bridge 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, and two pressing strips 3.

[0040] The waterproof strip 2 is made of stainless steel material and includes an expansion part 21 and connecting parts 22 arranged on both sides of the expansion part 21. Two profiles 1 are respectively provided with trapezoidal grooves 11 along the extension direction thereof, and the opening of the trapezoidal groove 11 faces the side where the expansion joint is located. The pressing strip 3 is fixedly installed in the trapezoidal groove 11 and tightly presses the connecting parts 22 on both sides of the waterproof strip 2 on the side walls of the two trapezoidal grooves 11.

[0041] In the preferred embodiment, the waterproof strip 2 is made of stainless steel material, which has excellent corrosion resistance and can prolong the service life of the waterproof strip 2 in a rainy environment. In addition, the stainless steel material has good elastic-plasticity, so that the expansion part 21 of the waterproof strip 2 can well adapt to the expansion and deformation at the expansion joint. Furthermore, the pressing strip 3 tightly presses the connecting part 22 of the waterproof strip 2 on the side wall of the trapezoidal groove 11 of the profile 1 along the extension direction of the expansion joint, so that there is no gap between the waterproof strip 2 and the profile 1, preventing rainwater from seeping into the bridge deck below from the connection between the two, and avoiding damage to the bridge body and its auxiliary facilities.

[0042] Preferably, the waterproof strip 2 is preferably made of a stainless steel plate with a thickness of 0.2mm-10mm, which is pressed and bent, and the processing technology is simple and ensures the overall durability of the waterproof strip 2.

[0043] Preferably, the material of the pressing strip 3 and / or the profile 1 can be low-alloy high-strength structural steel (such as Q355, etc.), weathering steel, aluminum alloy, stainless steel, etc. By setting the profile 1, the waterproof strip 2 and the pressing strip 3 to be made of stainless steel material, there are no components that are prone to aging and wear in the waterproof device, and the durability is excellent. In addition, the anti-vibration performance is good, which can be free of maintenance and reduce the inspection and maintenance cost in the later stage.

[0044] Further preferably, the connection between the bottom surface of the trapezoidal groove 11 and the side surface of the connecting part 22 is provided with an elongated groove 13 along the extension direction thereof, and the connecting part 22 is provided with a reinforcing segment 221 which extends into the elongated groove 13.

[0045] In the preferred embodiment, the outermost side of the connecting part 22 is bent to form a reinforcing segment 221 which extends into the elongated groove 13 of the profile 1 and hooks in the elongated groove 13 of the profile 1, so as to reinforce the connection between the waterproof strip 2 and the profile 1 and prevent the connecting part 22 of the waterproof strip 2 from falling off the trapezoidal groove 11, thereby ensuring the stability of the structure.

[0046] Preferably, the opposite side surfaces of the two profiles 1 are respectively provided with a special-shaped cavity 12, and the special-shaped cavity 12 is fixedly connected with the bridge body by the first connecting piece 4.

[0047] In the preferred embodiment, the special-shaped cavity 12 can be a through cavity along the length direction of the profile 1, or a plurality of cavities arranged at intervals along the length direction of the profile 1. One end of the first connecting piece 4 is clamped in the special-shaped cavity 12, and the other end is clamped with the assembly reserved for construction of the beam body.

[0048] Specifically, the first connecting member 4 is preferably an anchoring steel bar, one end of which is connected with the special-shaped cavity 12 and the other end of which is anchored in the beam body. The connecting manner of the anchoring steel bar with the special-shaped cavity 12 of the profiled bar 1 is preferably that: a nut matching the shape and size of the part of the special-shaped cavity 12 close to the beam body is installed on the part, the threaded end of the anchoring steel bar is connected with the nut, and a gasket and a fastening nut are sequentially arranged on the anchoring steel bar outside the special-shaped cavity 12 to tightly lock the anchoring steel bar and the profiled bar 1 together.

[0049] Exemplarily, the anchoring steel bar is in L shape.

[0050] Preferably, the connection between the pressing strip 3 and the profiled bar 1 can be achieved by adhesion, can also be achieved by welding, or can be achieved by using a connecting member.

[0051] Exemplarily, the pressing strip 3 is fixedly connected with the profiled bar 1 by a plurality of second connecting members 5.

[0052] Further preferably, the second connecting member 5 is a closed rivet, one end of which abuts against the inner wall surface of the special-shaped cavity 12 and the other end of which abuts against the top surface of the pressing strip 3, so as to ensure the tightness of the connection between the pressing strip 3 and the profiled bar 1 and further press the connecting part 22 against the side wall of the trapezoidal groove 11.

[0053] In the preferred embodiment, the closed rivet has the performances of waterproofness, anti-vibration, high tensile resistance, high shear resistance, etc., and is used to rivet and fix the pressing strip 3 and the profiled bar 1, which is convenient for installation operation. In addition, the special-shaped cavity 12 is both the connecting part of the profiled bar 1 and the beam body and the connecting part of the profiled bar 1 and the pressing strip 3 at this time, and the space of the special-shaped cavity 12 is fully utilized to reduce the volume of the profiled bar 1 and further reduce the space occupied by the profiled bar 1, which is convenient for construction of the profiled bar 1 at a narrow expansion joint position. Meanwhile, the special-shaped cavity 12 can also reduce the weight of the profiled bar 1 and reduce the cost of the profiled bar 1.

[0054] Specifically, the profiled bar 1 is provided with a first through hole communicating the trapezoidal groove 11 and the special-shaped cavity 12, and the pressing strip 3 is provided with a second through hole corresponding to the first through hole, and the closed rivet passes through the second through hole and the first through hole to connect the pressing strip 3 and the profiled bar 1 together.

[0055] During specific construction, the closed section of the closed rivet directly abuts against and is fixed on the top surface of the pressing strip 3, the front section of the closed rivet sequentially passes through the second through hole and the first through hole of the pressing strip 3 and the profiled bar 1, a matched riveting tool is used to pull the rivet core, the head of the rivet core drives the rivet body to deform and expand in the special-shaped cavity 12, when the head of the rivet core reaches the inclined surface of the special-shaped cavity 12, the rivet head is blocked by the deformed and expanded rivet body to form resistance, at this time, the rivet core outside the pressing strip 3 is broken off at a set breaking force, and the part left by the rivet core is fixed together with the rivet body on the inclined surface of the special-shaped cavity 12.

[0056] Reference Figure 5 The connecting part 22 and the side of the compression strip 3 are provided with a sealing strip 6, and / or the connecting part 22 and the side wall of the trapezoidal groove 11 are provided with a sealing strip 6, so as to improve the sealing and waterproof quality and prevent rainwater from entering the expansion joint between the connecting part 22 and the trapezoidal groove 11 and the compression strip 3 and damaging the lower structure of the beam body.

[0057] Preferably, the side of the compression strip 3 away from the waterproof strip 2 and the side wall of the trapezoidal groove 11 are provided with a sealing strip 7, so as to improve the sealing and waterproof quality and prevent rainwater from entering the expansion joint between the compression strip 3 and the trapezoidal groove 11 and damaging the lower structure of the beam body.

[0058] Preferably, the sealing strip 6 and / or the sealing strip 7 are made of polytetrafluoroethylene or expanded polytetrafluoroethylene, which has high corrosion resistance, aging resistance and sealing performance.

[0059] Preferably, the sealing strip 7 is a long column, and the sealing strip 6 is a long strip, and the thicknesses of the two are between 0.3mm and 50mm.

[0060] Preferably, the cross section of the expansion part 21 is preferably V-shaped, U-shaped or wave-shaped, so as to realize the deformation of stretching and compression at the expansion joint.

[0061] In the preferred embodiment, the two ends of the waterproof strip 2 are provided with a raised part 23, as shown in the figure, the raised part 23 is not limited to a straight raised head, an arc-shaped raised head and the like, so as to prevent water from flowing out of the two ends of the waterproof strip 2 and flowing to the flange of the beam body and under the bridge, washing the beam body and the pier, damaging the bridge support and other auxiliary facilities and affecting the service life of the bridge. Figure 4

[0062] Specifically, the highest part of the raised part 23 is preferably higher than the highest part of the connecting part 22 by 90mm or more.

[0063] The durable bridge beam end waterproof device has the advantages that the two compression strips are arranged along the extension direction of the expansion joint to press the connecting parts on the two sides of the waterproof strip on the side walls of the two trapezoidal grooves respectively, so that there is no gap between the waterproof strip and the profile, rainwater is prevented from seeping and flowing into the bridge below from the connecting part, damage of the rainwater to the bridge body and auxiliary facilities is avoided, the waterproof strip is made of stainless steel, the contraction part of the waterproof strip can form a waterproof structure at the expansion joint and meet the deformation requirement of the bridge expansion joint, the structure is simple, the installation is convenient, and the durability of the beam end waterproof structure is improved.

[0064] ​Those skilled in the art can understand that the above description is only preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A durable bridge end waterproofing device, characterized by, The waterproof device comprises two profiles arranged on both sides of the expansion joint and a waterproof strip arranged between the two profiles, and two pressing strips. The waterproof strip is made of stainless steel and comprises an expansion part and connecting parts arranged on both sides of the expansion part. Two profiles are respectively provided with trapezoidal grooves along their extending direction, the opening of the trapezoidal groove faces the side where the expansion joint is located, the pressing strip is installed and fixed in the trapezoidal groove, and the connecting parts on both sides of the waterproof strip are respectively pressed tightly on the side walls of the two trapezoidal grooves.

2. The durable bridge beam end waterproofing device of claim 1, wherein, The connecting part is provided with a reinforcing segment, and the reinforcing segment extends into the elongated groove.

3. The durable bridge beam end waterproofing device of claim 1 or 2, wherein, The side faces of the two profiles away from each other are respectively provided with special-shaped cavities, and the special-shaped cavities are fixedly connected with the bridge body through first connecting members.

4. The durable bridge beam end waterproofing device of claim 3, wherein, The pressing strip is fixedly connected with the profile through second connecting members.

5. The durable bridge beam end waterproofing device of claim 4, wherein, The second connecting member is a rivet, one end of the rivet is in abutment with the inner wall surface of the special-shaped cavity, and the other end is in abutment with the top surface of the pressing strip.

6. The durable bridge end waterproof device according to claim 1, wherein A sealing strip is arranged between the side face of the connecting part and the side wall of the trapezoidal groove. And / or, A sealing strip is arranged between the side face of the connecting part and the side wall of the trapezoidal groove.

7. The durable bridge beam end waterproofing device of claim 1, wherein, The side face of the pressing strip away from the waterproof strip is provided with a sealing strip between the side wall of the trapezoidal groove.

8. The durable bridge beam end waterproofing device of claim 1, wherein, The waterproof strip is provided with a raised part at both ends along its length direction.

9. The durable bridge beam end waterproofing device of claim 1, wherein, The pressing strip and / or the profile is made of stainless steel.

10. The durable bridge beam end waterproofing device of claim 1, wherein, The cross section of the expansion part is arranged in a V shape, a U shape or a wave shape.

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