LU504632B1

LU504632B1 - Anti-loosening expansion device and construction method thereof

Info

Publication number: LU504632B1
Application number: LU504632A
Authority: LU
Inventors: Yijun Zhang; Yuan Zhou; Qihao Zhang; Fan He; Xu Zhang; Yunxiu Luo; Shiwen Liu; Jian Gao
Original assignee: Sichuan Shuangjian R&B Machinery Co Ltd
Priority date: 2022-06-29
Filing date: 2023-06-29
Publication date: 2024-01-11
Also published as: CN114922061A; CN114922061B

Abstract

The present disclosure belongs to the field of bridge construction, in particular to an anti- loosening expansion device and a construction method thereof. The anti-loosening expansion device includes a comb plate and an expansion joint formed by a beam body, the comb plate is disposed on the expansion joint, the expansion device further includes a spigot base, on which an acute angle spigot is disposed, and one end that the comb plate is away from the expansion joint is disposed in the acute angle spigot. The anti-loosening expansion device provided by the present disclosure limits and locates the comb plate through the spigot base, thereby avoiding the damage to the comb plate caused by damaged bolts.

Description

BL-5721

ANTI-LOOSENING EXPANSION DEVICE AND CONSTRUCTION METHOD LU504632

THEREOF

TECHNICAL FIELD

[0001] The present disclosure belongs to the field of bridge construction, in particular to an anti- loosening expansion device and a construction method thereof.

BACKGROUND

[0002] A comb plate expansion device is widely applied in a municipal bridge at present due to its low noise and good driving comfort. It functions in being opened to traffic and suitable for beam displacement rotation angle.

[0003] But the loosened comb plate caused by the loosened comb plate anchor bolt occurs during an actual bridge operation, the loosened comb plate results in comb plate fracture, cupping, displacement and the like under long-term rolling and impact of vehicle wheels, thereby seriously affecting the driving safety.

SUMMARY

[0004] The present disclosure provides an anti-loosening expansion device and a construction method thereof, and the anti-loosening expansion device provided by the present disclosure limits and locates a comb plate through a spigot base, thereby avoiding the damage to the comb plate caused by the damaged bolt.

[0005] According to one aspect, the present disclosure provides an anti-loosening expansion device, including a comb plate and an expansion joint formed by a beam body, the comb plate is disposed on the expansion joint, the expansion device further includes a spigot base, on which an acute angle spigot is disposed, and one end that the comb plate is away from the expansion joint is disposed in the acute angle spigot.

[0006] Further, a connecting portion is disposed on the spigot base.

[0007] Further, two inclined slope surfaces are disposed on an upper surface of a comb of the comb plate, and/or an inclined slope surface is disposed on a lower surface of the comb of the comb plate.

[0008] Further, a waterproof strip is disposed in the expansion joint, and a water-repellent sound- proof material is disposed on the waterproof strip.

[0009] Further, a baffle is disposed on the expansion joint, and the water-repellent sound-proof material is located between the waterproof strip and the baffle. 1

BL-5721

[0010] Further, an angle steel is fixedly disposed on the beam body, and the waterproof strip 504632 connected to the angle steel through a clamping member.

[0011] Further, the baffle is disposed on the expansion joint.

[0012] According to another aspect, the present disclosure provides a construction method for an anti-loosening expansion device, and based on the above anti-loosening expansion device, the method includes the following steps of:

[0013] S200: setting a spigot base on an embedded steel plate based on an oil level elevation, arranging a template around the spigot base, and pouring concrete based on the template;

[0014] S300: setting a comb plate on the spigot base after the poured concrete is solidified, so that one end, away from an expansion joint, of the comb plate is disposed in an acute angle spigot;

[0015] Further, after S300, the method further includes the following steps of:

[0016] S400: paving an oil level outside the poured concrete, chiseling away a part of the oil level of the spigot base after the oil level is solidified, and filling resin concrete at the chiseling position.

[0017] Further, in S400, a protective mechanism is disposed on an expansion device before paving the oil level.

[0018] Further, before S200, the method further includes the following steps of:

[0019] S100: setting the embedded steel plate in a beam body when pouring the beam body.

[0020] After adopting the above technical solution, the present disclosure has the following advantages:

[0021] 1. In the present disclosure, the vehicle wheels generate upward counterforce when contacting with the comb plate through the cooperation of the acute angle spigot of the spigot base and the bolt, the bolt part is no longer used as tensile but a pivot, so that the upward counterforce is delivered to the root (that is, one end away from the expansion joint) of the comb plate. Since the root of the comb plate is adhered to the acute angle spigot, the comb plate is limited by the acute angle spigot, so that the comb plate cannot warp up. At the same time, the bolt does not bear the radial force any longer due to the action of the spigot base, so as to effectively prevent the looseness of the bolt.

[0022] 2. In the present disclosure, the water-repellent sound-proof material is placed on the waterproof strip, so that the noise caused by air concussion can be absorbed by the water-repellent sound-proof material, and through diffusion and amplification, the noise produced during driving is effectively reduced. The installation position of the waterproof strip is located in the middle of the expansion joint, an adhesive tape is mounted through the angle steel and fastened through the clamping member, so that the adhesive tape is simply and easily replaced later.

[0023] 3. In the present disclosure, the upper surface of the comb of the comb plate adopts a 2

BL-5721 double-slope design, and when the beam bodies at the two sides occur a relative corner arkd504632 generate a relative height difference, the double slopes on the two cooperative comb plates cooperate with each other to compensate for this height difference, so the driving stability is ensured.

[0024] 4. The structure based on the expansion joint in the present disclosure is convenient to install during construction, and not affected by the construction period. Specifically, the expansion device adopts an assembly design, installation may be carried out before paving the oil level. The concrete is laid in advance through the cooperation of the spigot base and the template in a case of confirming the elevation, and not limited by the construction period and the paving progress of the oil level.

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To better clarify the technical solution in the embodiment of the present disclosure, the drawings required to illustrate the embodiments of the present disclosure or the prior art will be simply described below. It is apparent that the drawings described below merely illustrate some embodiments of the present disclosure. Those of ordinary skill in the art can obtain other drawings without contributing creative labor on the basis of those drawings.

[0026] FIG. 1 is a structural schematic diagram of an anti-loosening expansion device in embodiments of the present disclosure.

[0027] FIG. 2 is a local schematic diagram of FIG. 1.

[0028] FIG. 3 1s a structural schematic diagram of a spigot base in embodiments of the present disclosure.

[0029] FIG. 4 is a structural schematic diagram of a comb plate in embodiments of the present disclosure.

[0030] FIG. 5 is a structural schematic diagram of a baffle in embodiments of the present disclosure.

[0031] FIG. 6 is a schematic diagram I of a construction process of embodiments in the present disclosure.

[0032] FIG. 7 is a schematic diagram II of a construction process of embodiments in the present disclosure.

[0033] FIG. 8 is a schematic diagram III of a construction process of embodiments in the present disclosure.

[0034] FIG. 9 is a schematic diagram IV of a construction process of embodiments in the present disclosure. 3

BL-5721

[0035] FIG. 10 is a schematic diagram V of a construction process of embodiments in the preseht}504632 disclosure.

[0036] FIG. 11 is a schematic diagram VI of a construction process of embodiments in the present disclosure.

[0037] FIG. 12 is a schematic diagram VII of a construction process of embodiments in the present disclosure.

[0038] FIG. 13 is a schematic diagram VIII of a construction process of embodiments in the present disclosure.

[0039] FIG. 14 is a schematic diagram IX of a construction process of embodiments in the present disclosure.

[0040] In the drawing: 10-comb plate, 11-slope surface, 20-beam body, 21-expansion joint, 30- spigot base, 3 1-acute angle spigot, 32-connecting portion, 40-waterproof strip, 50-water-repellent sound-proof material, 60-baffle, 61-bending portion, 70-steel angle, 80-clamping member, 90- embedded steel plate, 100-template, 110-concrete, 120-oil level, 130-resin concrete, 140- protective mechanism.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] Many different embodiments or examples are provided for the following description, so as to implement different characteristics of the present disclosure. The elements and arrangement modes described in the following specific examples are merely used for simply expressing the present disclosure, and only used as examples instead of limiting the present disclosure.

[0042] In the description of the present disclosure, it is understood that orientation or position relationships indicated by the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientation or position relationships as shown in the drawings, for ease of describing the present disclosure and simplifying the description only, rather than indicating or implying that the mentioned apparatus or element necessarily has a particular orientation and must be constructed and operated in the particular orientation. Therefore, these terms should not be understood as limitations to the present disclosure. In addition, the terms “first” and “second” are merely used for description, instead of being understood as indicating or implying relative importance or impliedly indicating the quantity of the showed technical features. Thus, the features defined with “first” and “second” may expressly or impliedly one or more features. In the description of the present disclosure, “a plurality of” means many or above two, unless specific limitation otherwise.

[0043] In the description of the present disclosure, it is noted that, unless specific regulation and 4

BL-5721 limitation otherwise, terms “install”, “join” and “connect” should be generally understood, fb/504632 example, may a fixed connection, a detachable connection, or an integrated connection, may a mechanical connection or an electric connection or a mutual communication, may a direct connection or an indirect connection through an intermediation, and may an internal connection of many elements or an interactive relationship of many elements. Those of ordinary skill in the art may understand the specific meaning of the terms in the present disclosure according to specific conditions.

[0044] In the present disclosure, unless specific regulation and limitation otherwise, the first feature “onto” or “under” the second feature may include the direct contact of the first feature and the second feature, or may include the contact of the first feature and the second feature through other features between them instead of direct contact. Moreover, the first feature “onto”, “above” and “on” the second feature includes that the first feature 1s right above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature 1s higher than the second feature. The first feature “under”, “below” and “down” the second feature includes that the first feature 1s right below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature 1s less than the second feature.

[0045] In order to make the objectives, technical solution and advantages of the present disclosure clearer and definer, the present disclosure will be described in detail below in conjunction with the drawings and the embodiments.

[0046] Embodiment 1

[0047] As shown in FIG. 1, this embodiment provides an anti-loosening expansion device, including a comb plate 10 and an expansion joint 21 formed by a beam body 20, the comb plate 10 1s disposed on the expansion joint 21, the expansion device further includes a spigot base 30, on which an acute angle spigot 31 is disposed, and one end that the comb plate 10 is away from the expansion joint 21 is disposed in the acute angle spigot 31. As shown in FIG. 3, the acute angle spigot 31 represents that an acute angle gap fitting with the comb plate 10 is disposed on the spigot base 30, and the graphical representation is only an example. It is to be noted that the shape and size of the spigot base 30 are not limited in the present disclosure, and the acute angle size of the acute angle gap is also not limited in the present disclosure.

[0048] It is to be noted that the form of the comb plate 10 is not also limited in the present disclosure, and the comb plate 10 of the present disclosure includes all types of comb plates 10.

[0049] Further, in some embodiments, as shown in FIG. 3, a connecting portion 32 is disposed on the spigot base 30. During a construction process, the set connecting portion 32 can form a connection with the concrete 110 directly when pouring the concrete 110, so that the connection

BL-5721 of the spigot base 30 1s more stable. LUS04632

[0050] Further, in some embodiments, as shown in FIG. 4, two inclined slope surfaces 11 are disposed on an upper surface of a comb of the comb plate 10, and/or an inclined slope surface 11 is disposed on a lower surface of the comb of the comb plate 10.

[0051] Specifically including: (1) two inclined slope surfaces 11 are disposed on an upper surface of the comb of the comb plate 10, and/or an inclined slope surface 11 is disposed on a lower surface of the comb of the comb plate 10.

[0052] (2) Two inclined slope surfaces 11 are disposed on the upper surface of the comb of the comb plate 10.

[0053] (3) An inclined slope surface 11 is disposed on the lower surface of the comb of the comb plate 10.

[0054] The upper surface of the comb of the comb plate 10 is equipped with two slope surfaces 11, and when the beam bodies 20 at the two sides occur a relative corner and generate a relative height difference, the double slope surfaces 11 on the two cooperative comb plates 10 cooperate with each other to compensate for this height difference, so the driving stability is ensured.

[0055] The lower surface of the comb of the comb plate 10 is equipped with one inclined slope surface 11, and when the beam bodies 20 at the two sides occur a relative corner and generate a relative height difference, the comb plates 10 are avoided interfering with the baffle 60 or the beam body 20 to cause damage.

[0056] Further, in some embodiments, as shown in FIG. 1 and FIG. 2, a waterproof strip 40 is disposed in the expansion joint 21, and a water-repellent sound-proof material 50 is disposed on the waterproof strip 40. The water-repellent sound-proof material 50 is placed on the waterproof strip, so that the noise caused by air concussion can be absorbed by the water-repellent sound- proof material 50, and through diffusion and amplification, the noise produced during driving is effectively reduced.

[0057] Further, in some embodiments, as shown in FIG. 2, an angle steel 70 is fixedly disposed on the beam body 20, and the waterproof strip 40 is connected to the angle steel 70 through a clamping member 80. The waterproof strip 40 is fixed through the clamping member 80, which is conductive to replacing the waterproof strip 40.

[0058] Further, in some embodiments, as shown in FIG. 5, a baffle 60 is disposed on the expansion joint 21, and the water-repellent sound-proof material 50 is located between the waterproof strip 40 and the baffle 60. The baffle 60 can prevent the rubble wastes from entering the waterproof strip 40. Preferably, the baffle 60 is provided with a bending portion 61, which can be connected to the concrete 110. 6

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[0059] Embodiment 2 LUS04632

[0060] This embodiment provides a construction method for an anti-loosening expansion device, and based on the above anti-loosening expansion device, the method includes the following steps of:

[0061] S100: as shown in FIG. 6, setting an embedded steel plate 90 in a beam body 20 when pouring the beam body 20.

[0062] S200: as shown in FIGs. 7 to 9, setting a spigot base 30 on an embedded steel plate 90 based on an oil level 120 elevation, arranging a template 100 around the spigot base 30, and pouring concrete 110 based on the template 100.

[0063] During this process, a waterproof strip and a water-repellent sound-proof material 50 may be disposed on an expansion joint 21.

[0064] As shown in FIG. 10, after the concrete 110 is solidified and formed, the baffle 60 is connected on the concrete 110, a baffle 60 connecting slot may be reserved when pouring the concrete 110, so the baffle 60 is more convenient to connect; and of course, the connecting slot can be formed in the concrete 110 after the concrete 110 is solidified.

[0065] S300: as shown in FIG. 11, setting a comb plate 10 on the spigot base 30 after the poured concrete 110 is solidified, so that one end, away from an expansion joint 21, of the comb plate 10 is disposed in an acute angle spigot 31; and fixedly connecting the comb plate 10, the spigot base and the embedded steel plate 90 through bolts.

[0066] S400: as shown in FIG. 12, arranging a protective mechanism 140 on the expansion device, where the protective mechanism 140 may be a board and can avoid the oil level polluting the expansion device, the oil level 120 is paved outside the poured concrete 110, after the oil level 120 is solidified, as shown in FIG. 13, a part of the oil level 120 closing to the spigot base 30 is chiseled away, the protective mechanism 140 is taken down, as shown in FIG. 14, resin concrete 130 is filled at the chiseling position. The resin concrete 130 has a better connecting effect, so as to connect with the oil level 120 and the spigot base 30.

[0067] In the prior art, the expansion device is constructed after the oil level is paved, and construction can be carried out before paving the oil level, so the present disclosure has the advantages of convenient installation and not affecting the construction period.

[0068] The above is only optional embodiments of the present disclosure and not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure. 7

Claims

BL-5721 CLAIMS: LU504632

1. An anti-loosening expansion device, comprising a comb plate (10) and an expansion joint (21) formed by a beam body (20), the comb plate (10) is disposed on the expansion joint (21), wherein the expansion device further comprises a spigot base (30), on which an acute angle spigot (31) is disposed, and one end that the comb plate (10) is away from the expansion joint (21) is disposed in the acute angle spigot (31).

2. The anti-loosening expansion device according to claim 1, wherein a connecting portion (32) is disposed on the spigot base (30).

3. The anti-loosening expansion device according to claim 1, wherein two inclined slope surfaces (11) are disposed on an upper surface of a comb of the comb plate (10), and/or an inclined slope surface (11) is disposed on a lower surface of the comb of the comb plate (10).

4. The anti-loosening expansion device according to claim 1, wherein a waterproof strip (40) is disposed in the expansion joint (21), and a water-repellent sound-proof material (50) is disposed on the waterproof strip (40).

5. The anti-loosening expansion device according to claim 4, wherein a baffle (60) is disposed on the expansion joint (21), and the water-repellent sound-proof material (50) is located between the waterproof strip (40) and the baffle (60).

6. The anti-loosening expansion device according to claim 4, wherein an angle steel (70) is fixedly disposed on a beam body (20), and the waterproof strip (40) is connected to the angle steel (70) through a clamping member (80).

7. The anti-loosening expansion device according to claim 1, wherein a baffle (60) is disposed on the expansion joint (21).

8. A construction method for an anti-loosening expansion device, based on the anti-loosening expansion device according to any one of claims 1 to 7, the method comprises the following steps of: S200: setting a spigot base (30) on an embedded steel plate (90) based on an oil level (120) elevation, arranging a template (100) around the spigot base (30), and pouring concrete (110) based on the template (100); S300: setting a comb plate (10) on the spigot base (30) after the poured concrete (110) is 8

BL-5721 solidified, so that one end, away from an expansion joint (21), of the comb plate (10) is disposed 204632 in an acute angle spigot (31);

9. The construction method for the anti-loosening expansion device according to claim 8, wherein after S300, the method further comprises the following steps of: S400: paving an oil level (120) outside the poured concrete (110), chiseling away a part of the oil level (120) closing to the spigot base (30) after the oil level (120) is solidified, and filling resin concrete (130) at the chiseling position.

10. The construction method for the anti-loosening expansion device according to claim 8, wherein in S400, a protective mechanism (140) is disposed on an expansion device before paving the oil level (120). 9