CN215857199U

CN215857199U - U type bridge face beam-ends watertight fittings

Info

Publication number: CN215857199U
Application number: CN202022785452.9U
Authority: CN
Inventors: 孙浩; 王磊; 李臣飞; 王可心
Original assignee: Hengshui Jijun Road And Bridge Maintenance Co ltd
Current assignee: Hengshui Jijun Road And Bridge Maintenance Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2022-02-18
Anticipated expiration: 2030-11-27

Abstract

The utility model relates to the technical field of bridges, in particular to a U-shaped bridge deck beam end waterproof device, which comprises: the end parts of the outer support plate, the inner support plate, the longitudinal filler, the lower support plate, the end part fixing forming plate and the transverse filler are fixed on the outer support plate; the outer side supporting plate is arranged between the beam ends of the two beam bodies; the inner side supporting plate is arranged on the beam surface of the beam body; the longitudinal filler is arranged among the outer side supporting plate, the inner side supporting plate and the beam end; the lower supporting plate is arranged between the water retaining platforms of the two beam bodies; the end part fixing forming plate is arranged at the end part of the lower supporting plate; the transverse filling body is arranged among the lower supporting plate, the end part fixing forming plate and the water retaining platform. In this scheme, be provided with vertical obturator through outside backup pad and inboard backup pad, be provided with horizontal obturator through bottom suspension fagging and end fixing shaping board, can realize through vertical obturator and horizontal obturator waterproof to U type bridge face end beam, have advantages such as water-proof effects is good and simple to operate.

Description

U type bridge face beam-ends watertight fittings

Technical Field

The utility model relates to the technical field of bridges, in particular to a U-shaped bridge deck beam end waterproof device.

Background

Along with the development of the modern construction of our country, the construction of modern railways plays the role of the strong nation of railways, and the railways not only play the role of jack in the field of transportation, but also bear the reviving dreams of the development progress of Chinese nationalities. From the harmony number to the revival number, from the perfect construction of the four longitudinal and four transverse lines to the planning construction of the eight longitudinal and eight transverse lines, people are in the big period of railway development. The high-speed railway bridge is used as the most basic and key part of a high-speed railway network, the service life and the quality of the high-speed railway bridge directly influence the operation and the driving safety of the railway network and influence the long-term benefit of railway construction. How to better protect the beam body, ensure the driving safety and maintain the long-term benefit is the key point of the research of modern railway builders.

At present, the railway beam end waterproof device mainly comprises three traditional waterproof devices of an expansion joint of rubber strip section steel, an elastomer beam end waterproof device and a replaceable beam end waterproof device. The three types of beam end waterproof devices have good waterproof effect in the field of railway beam end waterproof devices. However, the three types of waterproof devices are only suitable for the traditional horizontal plane beam end waterproof, and the U-shaped bridge deck beam end waterproof device is not applied to a better product at present.

In summary, in the prior art, no good product application exists for the U-shaped bridge deck beam end waterproof device at present.

SUMMERY OF THE UTILITY MODEL

One of the technical problems to be solved by the utility model is as follows: the problem that a U-shaped bridge deck beam end waterproof device is not well applied to products in the prior art is solved.

(II) technical scheme

In order to solve the above technical problem, the present invention provides a U-shaped bridge deck beam end waterproof device, including:

the outer supporting plate is arranged between the beam ends of the two beam bodies;

the inner side supporting plate is arranged on the beam surface of the beam body;

a longitudinal filler disposed between the outboard support plate, the inboard support plate, and the beam end;

the lower supporting plate is arranged between the water retaining platforms of the two beam bodies;

the end part fixing forming plate is arranged at the end part of the lower supporting plate;

and the transverse filling body is arranged among the lower supporting plate, the end part fixing forming plate and the water retaining platform.

According to one embodiment of the utility model, an interface transition layer is arranged between the transverse filling body and the water retaining platform, and the interface transition layer is arranged between the longitudinal filling body and the beam end.

According to one embodiment of the utility model, a gap filler is arranged between the outer support plate and the water retaining platform, and the gap filler is arranged between the lower support plate and the beam end.

According to one embodiment of the utility model, the cross section of the lower support plate is arched, and the arch of the lower support plate is bent towards the direction close to the transverse filling body; the cross section of the outer side support plate is arched, and the arch of the outer side support plate is bent towards the direction close to the longitudinal filling body.

According to an embodiment of the utility model, the U-shaped bridge deck beam end waterproof device further comprises an adhesive tape, and the inner side supporting plate is connected with the surface of the beam end through the adhesive tape.

According to an embodiment of the utility model, the U-shaped bridge deck beam-end waterproofing device further comprises a support frame, and the support frame is located between the inner side support plate and the transverse filling body.

According to one embodiment of the present invention, the outer support plate, the inner support plate and the lower support plate are PVC plates or foam plates.

According to one embodiment of the utility model, a surface protection layer is sprayed on the surface of the longitudinal filling bodies and/or the transverse filling bodies.

The utility model has the beneficial effects that: the application provides an among the U type bridge face beam-ends watertight fittings, be provided with vertical obturator through outside backup pad and inboard backup pad, be provided with horizontal obturator through bottom suspension fagging and end fixing profiled sheeting, can realize through vertical obturator and horizontal obturator waterproof to U type bridge face end beam, have advantages such as water-proof effects is good and simple to operate.

Drawings

The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a U-shaped bridge deck beam-end waterproofing device provided by the present application;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic structural diagram of an inner support plate in the U-shaped bridge deck beam-end waterproofing device provided by the present application;

fig. 5 is a schematic structural view of a support frame and an inner support plate in the U-shaped bridge deck beam-end waterproofing device provided by the present application.

The reference numbers are as follows: 1. the structure comprises an inner supporting plate, 2 an end fixing forming plate, 3 an outer supporting plate, 4 a transverse filling body, 5 an interface transition layer, 6 a longitudinal filling body, 7 a gap filler, 8 a surface protection layer, 9 a supporting frame, 10 an adhesive tape, 11 a lower supporting plate, 12 a beam end, 13 a beam body, 14 a beam surface and 15 a water retaining platform.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

As shown in figures 1 to 3, the utility model provides a U-shaped bridge deck beam end waterproof device, which comprises an outer side supporting plate 3, an inner side supporting plate 1, a longitudinal filling body 6, a lower supporting plate 11, an end fixing forming plate and a transverse filling body 4; the outer supporting plate 3 is arranged between the beam ends 12 of the two beam bodies 13; the inner supporting plate 1 is arranged on the beam surface 14 of the beam body 13; the longitudinal filler 6 is arranged among the outer support plate 3, the inner support plate 1 and the beam end 12; the lower supporting plate 11 is arranged between the water retaining platforms 15 of the two beam bodies 13; the end fixing forming plate is arranged at the end of the lower supporting plate 11; the horizontal filling body 4 is arranged among the lower supporting plate 11, the end part fixing forming plate and the water blocking platform 15.

Specifically, the material of the transverse filling bodies 4 and the longitudinal filling bodies 6 is liquid polyurethane, and the hardness, the strength and the elongation at break of the liquid polyurethane can be adjusted. The transverse filling body 4 and the longitudinal filling body 6 are made of two-component polyurethane materials, the component A is composed of a chain extender, polymer polyol, an anti-aging agent, a leveling agent, a defoaming agent and an accelerator, the component B is modified isocyanate, the transverse filling body 4 and the longitudinal filling body 6 are subjected to vacuum pumping and heating through a pouring machine and then are mixed and poured, the heating temperature is controlled to be 25-40 ℃, after the materials are molded, the tensile strength is not lower than 4MPa, the elongation at break is not less than 950%, and the hardness is 18-25A. The thickness of the lower support plate 11 is less than 3cm, and the width of the lower support plate 11 is 1.5-2 times of the slit width.

According to one embodiment of the present invention, an interface transition layer 5 is disposed between the transverse filling body 4 and the water blocking platform 15, and the interface transition layer 5 is disposed between the longitudinal filling body 6 and the beam end 12.

Specifically, the transverse filling bodies 4 and the longitudinal filling bodies 6 form a closed waterproof structure through the interface transition layer 5 and the beam ends 12, so that the beam ends 12 of the U-shaped bridge deck are all in a waterproof state, and the phenomenon that part of the beam ends 12 are corroded by rainwater is avoided.

The interface transition layer 5 is used for connecting the concrete beam end 12 with the transverse filling bodies 4 and the longitudinal filling bodies 6, and the bonding strength of the interface transition layer 5 and the dry and clean concrete beam end 12 is larger than that of the material of the interface transition layer 5. When the interface transition layer 5 is arranged and the beam joint is stressed and stretched, the horizontal filling body 4 and the longitudinal filling body 6 cannot fall off from the beam body 13 to cause potential safety hazards even if the waterproof function fails due to stress damage. The interface transition layer 5 is made of single-component, double-component or multi-component polyurethane material, and the strength of the interface transition layer 5 is more than 3 Mpa. The interface transition layer 5 is polyurethane single-component coating, and the thickness of the coating is less than 1 mm.

According to one embodiment of the present invention, a gap filler 7 is disposed between the outer support plate 3 and the water stop table 15, and the gap filler 7 is disposed between the lower support plate 11 and the beam end 12.

Specifically, the lower support plate 11 and the outer support plate 3 are connected to the beam gap, and gap filling is performed by the gap filler 7. The gap filler 7 is a polyurethane foam material, has certain cohesiveness, can effectively ensure the connection of the lower support plate 11 and the outer support plate 3 with the beam body 13, and prevents the leakage of the transverse filling bodies 4 and the longitudinal filling bodies 6 before curing.

According to one embodiment of the present invention, the cross-section of the lower support plate 11 is arched, and the arch of the lower support plate 11 is curved toward the direction close to the lateral filling bodies 4; the cross section of the outer support plate 3 is arched, and the arch of the outer support plate 3 is bent in a direction approaching the longitudinal filling body 6.

Specifically, the lower support plate 11 and the outer support plate are formed in an arch shape, which has an advantage in that a supporting force is large, and the horizontal filling bodies 4 and the vertical filling bodies 6, which are poured and have elasticity, are prevented from falling off due to gravity when in a liquid state.

According to one embodiment of the utility model, as shown in fig. 4, the U-shaped bridge deck beam end waterproof device further comprises an adhesive strip 10, and the inner support plate 1 and the surface of the beam end 12 are connected through the adhesive strip 10.

Specifically, the adhesive strip 10 is used for connecting the longitudinal beam seam surface and the inner side support plate 1, the width of the adhesive strip 10 is not less than 1cm, the thickness of the adhesive strip 10 is not more than 2mm, and the adhesive strip 10 has double-sided adhesive property and compressibility.

According to one embodiment of the present invention, as shown in fig. 5, the U-shaped bridge deck beam-end waterproofing device further comprises a support frame 9, and the support frame 9 is located between the inner support plate 1 and the transverse infill 4.

Specifically, the inner side supporting plate 1 is connected with the surface of the longitudinal beam end 12 through an adhesive tape and is tightly propped through the supporting frame 9. The inner side supporting plate 1 and the supporting frame 9 can be detached after the longitudinal filling body 6 is solidified.

According to one embodiment of the present invention, the outer support plate 3, the inner support plate 1 and the lower support plate 11 are PVC plates or foam plates. The outer support plate 3, the inner support plate 1, and the lower support plate 11 may be made of other elastic plate materials.

According to one embodiment of the utility model, the surface of the longitudinal filling bodies 6 and/or the transverse filling bodies 4 is sprayed with a surface protection layer 8.

Specifically, the support frame 9 and the inner side support plate 1 are removed, and the surface protection layer 8 is sprayed on the surface of the longitudinal filler 6 and/or the transverse filler 4, wherein the thickness of the surface protection layer is 1 mm. The surface protection layer 8 is made of ultraviolet-resistant liquid polyurethane, the thickness of the coating is not less than 0.5mm, and the coating can be single-component, double-component or multi-component.

A method of manufacturing a U-shaped deck beam-end flashing, comprising a U-shaped deck beam-end flashing as described above, wherein: the method comprises the following specific steps:

s1, beam end 12 processing;

s2, sequentially installing the lower supporting plate 11 and the end fixing forming plate 2, and pouring the transverse filling body 4;

and S3, sequentially installing the outer side supporting plate 3 and the inner side supporting plate 1, and pouring the longitudinal filling body 6.

According to an embodiment of the present invention, the step S3 further includes:

s4, after the longitudinal filling body 6 is molded, the inner side supporting plate 1 is removed, and the surface protection layer 8 is sprayed on the surfaces of the transverse filling body 4 and the longitudinal filling body 6.

The method for preparing the U-shaped bridge deck beam-end waterproof device comprises the following concrete steps: (1) beam end 12 processing; (2) the lower support plate 11 is installed; (3) the end fixing forming plate 2 is installed; (4) filling gaps; (5) spraying an interface transition layer 5; (6) pouring liquid polyurethane elastomer to form a transverse filling body 4; (7) after the step 6) is finished, installing the outer supporting plate 3 after the liquid polyurethane is solidified and molded; (8) filling gaps; (9) spraying an interface transition layer 5; (10) installing an inner side supporting plate 1; (11) pouring liquid polyurethane elastomer to form a longitudinal filling body 6; (12) after the step 11) is finished, after the liquid polyurethane is cured and molded, the outer supporting plate 3 is removed to form a U-shaped elastomer waterproof filling body with a closed bottom; (13) and (3) spraying a surface protection layer 8 on the surface of the U-shaped beam end 12 waterproof device to prepare the complete U-shaped beam end 12 waterproof device.

The beam end 12 treatment in the step (1) comprises polishing of a concrete surface smooth layer of the beam end 12 and cleaning of floating ash, and when an interface is wet, blow-drying treatment is needed.

And (3) mounting the lower supporting plate 11 in the step (2), cutting the supporting plate according to the width of the beam seam, controlling the width of the lower supporting plate 11 to be 1.5-2 times of the width of the seam, manufacturing the lower supporting plate 11 into an arch shape, and mounting the arch shape into the beam seam, wherein the net height between the upper surface of the arch shape and the lowest position of the horizontal plane of the beam seam is not less than 0.15 time and not more than 0.3 time of the width of the seam.

And (3) installing the inner side supporting plate 1 in the step (10), attaching double-sided adhesive tapes at two edges of the plane of the inner side supporting plate 1 to ensure that the inner side supporting plate can be adhered to the surface of the beam body 13, wherein the adhesive tapes 10 can be double-sided adhesive tapes or adhesive materials such as foam joint fillers 7, and the like, and after the inner side supporting plate 1 and the beam body 13 are attached, tightly jacking by using a supporting frame 9.

In the step (6) and the step (11), in the pouring of the liquid polyurethane elastomer, the temperature of raw materials is controlled to be 25-40 ℃, the curing time of the transverse filling body 4 is controlled to be within 24 hours, and the gel time of the longitudinal filling body 6 is controlled to be within 1 hour.

The application provides a U type bridge face beam-ends watertight fittings's preparation process does: selecting one beam seam of two span beams, polishing and soot blowing, measuring 5 points (9cm, 11cm, 10cm and 11cm) of the width of the beam seam, taking the average value to be 10.2cm, cutting a lower supporting plate 11/an outer supporting plate according to the width of the beam seam, wherein the lower supporting plate 11 in the embodiment is an elastic foam plate with the thickness of 1cm, cutting the lower supporting plate 11 with the width of 16cm, folding the lower supporting plate into an arch, installing the lower supporting plate 11 into a transverse beam seam, adjusting the level of the lower supporting plate 11 to ensure that the arch top surface is 1.5cm away from the lowest point of the beam seam, and the filling height of an elastic filling body is equal to the lowest point of the beam seam, so that water is conveniently discharged from the point, the gap generated between the beam seam and the edge of the lower supporting plate 11 is filled with a gap filler 7, spraying an interface transition layer 5, controlling the thickness of the interface transition layer 5 to be less than 1mm without an exposed concrete interface, according to the optimal proportion of polyurethane elastic filler (A: B is 1: 1.15) manufactured in a laboratory, a casting machine carries out mixed casting, after the filler is solidified, an outer supporting plate, a gap filler 7 and an interface transition layer 5 are installed according to the same method, an inner supporting plate 1 is cut, the width is 14cm, an adhesive tape 10 is attached to the edge of the inner supporting plate 1, the adhesive tape selected in the embodiment is a compressible double-sided adhesive tape with the width of 1.5cm and the thickness of 1.5mm, the adhesive tape is tightly supported by a supporting frame 9 after being attached to the surface of a longitudinal beam seam, the polyurethane filler is poured in the same way, after the filler is solidified, the supporting frame 9 and the inner supporting plate 1 are detached, a surface protection layer 8 is sprayed on the surfaces of a longitudinal filler 6 and a transverse filler 4, the thickness of the surface protection layer 8 is 1mm, and the whole steps are completed, namely the complete U-shaped bridge deck beam end waterproof device is prepared.

To sum up, among the U type bridge face beam-ends watertight fittings that this application provided, be provided with vertical obturator 6 through outside backup pad 3 and inboard backup pad 1, be provided with horizontal obturator 4 through backup pad 11 and end fixing shaping plate down, can realize through vertical obturator 6 and horizontal obturator 4 that it is waterproof to U type bridge face end beam, have advantages such as water-proof effects are good and simple to operate.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in 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 in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a U type bridge face beam-ends watertight fittings which characterized in that includes:

2. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: an interface transition layer is arranged between the transverse filling body and the water retaining platform, and the interface transition layer is arranged between the longitudinal filling body and the beam end.

3. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: and a gap filler is arranged between the outer side supporting plate and the water retaining platform, and the gap filler is arranged between the lower supporting plate and the beam end.

4. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: the section of the lower supporting plate is arched, and the arch of the lower supporting plate is bent towards the direction close to the transverse filling body; the cross section of the outer side support plate is arched, and the arch of the outer side support plate is bent towards the direction close to the longitudinal filling body.

5. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: the U-shaped bridge deck beam end waterproof device further comprises an adhesive tape, and the inner side supporting plate is connected with the surface of the beam end through the adhesive tape.

6. A U-shaped bridge deck beam-end waterproofing device according to claim 5, wherein: the U-shaped bridge deck beam end waterproof device further comprises a support frame, and the support frame is located between the inner side support plate and the transverse filling body.

7. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: the outer supporting plate, the inner supporting plate and the lower supporting plate are PVC plates or foam plates.

8. The U-shaped bridge deck beam-end waterproofing device according to claim 1, wherein: and a surface protection layer is sprayed on the surface of the longitudinal filling body and/or the transverse filling body.