CN211079899U - Precast block for bridge expansion joint - Google Patents
Precast block for bridge expansion joint Download PDFInfo
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- CN211079899U CN211079899U CN201921740327.7U CN201921740327U CN211079899U CN 211079899 U CN211079899 U CN 211079899U CN 201921740327 U CN201921740327 U CN 201921740327U CN 211079899 U CN211079899 U CN 211079899U
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- expansion joint
- lifting hook
- prefabricated plate
- bridge expansion
- prefabricated
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Abstract
The utility model discloses a prefabricated section for bridge expansion joint, including steel sheet, lifting hook, prefabricated plate, skeleton and bell and spigot, the both sides face symmetry of prefabricated plate is provided with the lifting hook, steel sheet and skeleton fixed connection, lifting hook and skeleton fixed connection, the bell and spigot is located the middle part in prefabricated plate cross-section, the one end of lifting hook is passed the prefabricated plate side and is leaned on the position on upper portion, the other end of lifting hook passes the prefabricated plate side and leans on the position of lower part, and the lifting hook is the slope structure in the side of prefabricated plate, the lower surface of steel sheet and the coincidence of the upper surface of prefabricated plate. The utility model discloses but reuse, work efficiency are high, avoid the waste material to block up the expansion joint, protect construction environment, and expansion joint department roughness is higher after using, has avoided the vehicle to take place the emergence of the phenomenon of jumping when expansion joint department, because expansion joint department adopts the processing mode of this kind of rigidity of prefabricated section, can make the paver pass through when having a good roughness and initial compaction in expansion joint department.
Description
Technical Field
The utility model relates to an auxiliary device of bridge floor construction specifically is a prefabricated section for bridge expansion joint.
Background
When the bridge expansion joint is constructed, a reverse grooving construction method is generally adopted, and an asphalt surface layer structure can be paved on the bridge only by processing the expansion joint before construction. Most of the bridge expansion joints are treated randomly during actual construction, so that waste road materials are fully distributed in the expansion joints, and the expansion joints lose part of using functions; some adoption is irritated husky and is made things convenient for pitch to follow the bridge floor construction, results in expansion joint department roughness unsatisfactory, leads to the phenomenon of jumping to take place occasionally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at developing a precast block of bridge expansion joint punishment, reach reuse, work efficiency is high, avoid the waste material to block up the expansion joint, protect the construction environment, finally reach and improve the level and smooth effect of bituminous paving.
In order to achieve the above object, the utility model provides a following technical scheme:
The utility model provides a prefabricated section for bridge expansion joint, includes steel sheet, lifting hook, prefabricated plate, skeleton and bell and spigot, the both sides face symmetry of prefabricated plate is provided with the lifting hook, steel sheet and skeleton fixed connection, lifting hook and skeleton fixed connection, the bell and spigot is located the middle part in prefabricated plate cross-section, the one end of lifting hook is passed the prefabricated plate side and is leaned on the position on upper portion, the other end of lifting hook passes the prefabricated plate side and leans on the position of lower part, and the lifting hook is the inclined structure in the side of prefabricated plate, the lower surface of steel sheet and the coincidence of the upper surface of.
Further, the section of the lifting hook is circular.
Further, the section of the lifting hook is rectangular.
Furthermore, the framework comprises main ribs, erection ribs and stirrups, and the main ribs, the erection ribs and the stirrups are fixedly connected with each other.
Furthermore, the area of the lower surface of the steel plate is larger than that of the upper surface of the precast slab.
Furthermore, the precast blocks for the bridge expansion joint are connected into an integrated structure through the sockets in a tenon mode.
Further, the steel plate is subjected to surface corrosion prevention treatment.
Furthermore, the connection mode of the steel plate and the framework is welding.
Further, a use method of the precast block for the bridge expansion joint is characterized by comprising the following steps:
S1, preprocessing the asphalt pavement by a sliding shoe wiring method, removing impurities such as dregs and the like in the bridge expansion joint, and placing a precast slab in the bridge expansion joint;
S2, respectively brushing a release agent on the upper surface and the lower surface of the steel plate;
S3, the precast slabs are connected through sockets in a tenon mode, and asphalt impregnated wood boards are filled in gaps in the pavement direction;
S4, placing elevation piles at intervals of 10 meters within the length range of 30m at two sides of the bridge expansion joint, paving an asphalt concrete surface layer in a pile nailing and paying off mode, constructing a paver in a balance beam mode during paving, and nailing and paying off piles in advance when the paver passes through the bridge expansion joint;
S5, the pavement of the asphalt concrete is vibrated and rolled by a road roller;
S6, measuring the temperature of the asphalt concrete surface layer;
S7, when the temperature of the asphalt concrete surface layer is lower than 50 ℃, drawing lines and cutting the bridge expansion joints by a cutting machine;
And S8, taking out the prefabricated plate which is originally placed, and carrying out rust removal and welding on the framework for restoration.
Compared with the prior art, the beneficial effects of the utility model are that: the expansion joint can be recycled, the working efficiency is high, the expansion joint is prevented from being blocked by waste materials, the construction environment is protected, the flatness of the expansion joint is high after the expansion joint is used, and the phenomenon of vehicle jumping when a vehicle passes through the expansion joint is avoided; because the expansion joint adopts the rigid processing mode of the precast block, the expansion joint has good flatness and initial compactness when the paver passes through the expansion joint.
Drawings
FIG. 1: the structure of the utility model is as follows;
FIG. 2: the front view of the utility model;
FIG. 3: the right view of the utility model;
FIG. 4: the utility model discloses cross-sectional view when using.
In the figure: 1. a steel plate; 2. a hook; 3. prefabricating a slab; 4. a framework; 5. a bell and spigot joint; 6. a bridge expansion joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides embodiment 1:
The utility model provides a prefabricated section for bridge expansion joint, is circular shape lifting hook 2, prefabricated plate 3, skeleton 4 and bell and spigot 5 including steel sheet 1, cross-section, the both sides face symmetry of prefabricated plate 3 is provided with lifting hook 2, skeleton 4 includes main muscle, erects muscle and stirrup, and main muscle and erectmuscle and stirrup fixed connection each other, steel sheet 1 and skeleton 4 fixed connection, lifting hook 2 and skeleton 4 fixed connection, bell and spigot 5 is located the middle part in 3 cross-sections of prefabricated plate, 3 sides of prefabricated plate lean on the position on upper portion are passed to lifting hook 2's one end, 3 sides of prefabricated plate are passed to lifting hook 2's the other end and lean on the position of lower part, and lifting hook 2 is the inclined structure in the side of prefabricated plate 3, the lower surface of steel sheet 1 coincides with the upper surface of prefabricated plate 3. The area of the lower surface of the steel plate 1 is larger than that of the upper surface of the precast slab 3. The steel sheet 1 is subjected to surface corrosion prevention treatment. The steel plate 1 and the framework 4 are connected by welding.
The precast blocks for the bridge expansion joint are connected into an integrated structure through the sockets 5 in a tenon mode. The precast slab 3 is made of light materials such as fly ash and slag through core mould casting. When in use, the lower surface of the steel plate 1 is coated with a release agent.
Referring to fig. 1-4, the present invention provides embodiment 2:
The difference from the embodiment 1 is that: the section of the lifting hook 2 is rectangular.
Referring to fig. 1-4, the present invention provides embodiment 3:
A use method of a precast block for a bridge expansion joint comprises the following steps:
S1, preprocessing the asphalt pavement by a sliding shoe wiring method, removing impurities such as dregs and the like in the bridge expansion joint 6, and placing the precast slabs 3 in the bridge expansion joint 6;
S2, respectively brushing a release agent on the upper surface and the lower surface of the steel plate 1;
S3, the precast slabs 3 are connected through sockets 5 in a tenon mode, and asphalt impregnated wood boards are filled in gaps in the pavement direction;
S4, placing elevation piles at intervals of 10 meters within the length range of 30m on both sides of the bridge expansion joint 6, paving an asphalt concrete surface layer by adopting a pile nailing and paying off mode, constructing by adopting a balance beam mode when a paver is in paving work, and carrying out pile nailing and paying off in advance when the paver passes through the bridge expansion joint 6; because the expansion joint adopts the rigid processing mode of the precast block, the expansion joint has good flatness and initial compactness when the paver passes through the expansion joint,
S5, the pavement of the asphalt concrete is vibrated and rolled by a road roller;
S6, measuring the temperature of the asphalt concrete surface layer;
S7, when the temperature of the asphalt concrete surface layer is lower than 50 ℃, drawing lines and cutting the bridge expansion joint 6 by a cutting machine;
And S8, taking out the prefabricated plate 3 which is originally placed, and carrying out rust removal and welding on the framework 4 for restoration.
According to the above-mentioned detailed embodiment, the utility model discloses technical scheme's that adopts technical effect is: the expansion joint can be recycled, the working efficiency is high, the expansion joint is prevented from being blocked by waste materials, the construction environment is protected, the flatness of the expansion joint is high after the expansion joint is used, and the phenomenon of vehicle jumping when a vehicle passes through the expansion joint is avoided; because the expansion joint adopts the rigid processing mode of the precast block, the expansion joint has good flatness and initial compactness when the paver passes through the expansion joint.
Claims (8)
1. The utility model provides a prefabricated section for bridge expansion joint which characterized in that: including steel sheet (1), lifting hook (2), prefabricated plate (3), skeleton (4) and bell and spigot (5), the both sides face symmetry of prefabricated plate (3) is provided with lifting hook (2), steel sheet (1) and skeleton (4) fixed connection, lifting hook (2) and skeleton (4) fixed connection, bell and spigot (5) are located the middle part in prefabricated plate (3) cross-section, the position that leans on upper portion is passed to prefabricated plate (3) side to the one end of lifting hook (2), the position that leans on the lower part is passed to the other end of lifting hook (2) side, and lifting hook (2) are the slope structure in the side of prefabricated plate (3), the lower surface of steel sheet (1) and the coincidence of the upper surface of prefabricated plate (3).
2. The precast block for a bridge expansion joint according to claim 1, wherein: the section of the lifting hook (2) is circular.
3. The precast block for a bridge expansion joint according to claim 1, wherein: the section of the lifting hook (2) is rectangular.
4. The precast block for a bridge expansion joint according to claim 1, wherein: the framework (4) comprises main ribs, vertical ribs and stirrups, and the main ribs, the vertical ribs and the stirrups are fixedly connected with each other.
5. The precast block for a bridge expansion joint according to claim 1, wherein: the area of the lower surface of the steel plate (1) is larger than that of the upper surface of the precast slab (3).
6. The precast block for a bridge expansion joint according to claim 1, wherein: the precast blocks for the bridge expansion joint are connected into an integrated structure through the sockets (5) in a tenon mode.
7. The precast block for a bridge expansion joint according to claim 1, wherein: and the steel plate (1) is subjected to surface anticorrosion treatment.
8. The precast block for a bridge expansion joint according to claim 1, wherein: the steel plate (1) and the framework (4) are connected in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740327.7U CN211079899U (en) | 2019-10-16 | 2019-10-16 | Precast block for bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740327.7U CN211079899U (en) | 2019-10-16 | 2019-10-16 | Precast block for bridge expansion joint |
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| Publication Number | Publication Date |
|---|---|
| CN211079899U true CN211079899U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921740327.7U Active CN211079899U (en) | 2019-10-16 | 2019-10-16 | Precast block for bridge expansion joint |
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| CN (1) | CN211079899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593091A (en) * | 2019-10-16 | 2019-12-20 | 中国十七冶集团有限公司 | Precast block for bridge expansion joint and use method thereof |
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2019
- 2019-10-16 CN CN201921740327.7U patent/CN211079899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593091A (en) * | 2019-10-16 | 2019-12-20 | 中国十七冶集团有限公司 | Precast block for bridge expansion joint and use method thereof |
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