CN113914210A - Segmental prefabricated seamless expansion joint device and construction method thereof - Google Patents
Segmental prefabricated seamless expansion joint device and construction method thereof Download PDFInfo
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- CN113914210A CN113914210A CN202111218985.1A CN202111218985A CN113914210A CN 113914210 A CN113914210 A CN 113914210A CN 202111218985 A CN202111218985 A CN 202111218985A CN 113914210 A CN113914210 A CN 113914210A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/262—Concrete reinforced with steel fibres
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a segmental prefabricated seamless expansion joint device and a construction method thereof, the segmental prefabricated seamless expansion joint device comprises two C-shaped steels respectively positioned on two beam bodies and a slidable steel plate erected on two opposite grooves of the two C-shaped steels, wherein two side edges of the slidable steel plate extend into the grooves of the two C-shaped steels, two ends of the slidable steel plate are connected with the C-shaped steels through elastic pieces, the slidable steel plate can slide relative to the C-shaped steels, an abrasion layer is laid above the slidable steel plate, a silicon rubber elastoplastic body is arranged at a gap between the two side edges above the slidable steel plate and the C-shaped steels, and a flexible buffer piece is arranged between contact surfaces of the slidable steel plate and the C-shaped steels. The section prefabricated seamless expansion joint device provided by the invention has the advantages of reasonable structural design, smooth driving process, good comfort and convenience in structural installation, maintenance and replacement.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a device for prefabricating a seamless expansion joint by sections and a construction method thereof.
Background
In recent years, with the rapid development of socioeconomic performance in China, the construction technology of urban bridges and highway bridges is rapidly developed. The bridge expansion joint is a device which is arranged for coordinating the joints among bridges and between bridges and bridge platforms. Because the expansion joint directly bears the repeated impact action of automobile load, especially when the expansion joint has the condition such as activity, unevenness, damage, the car can produce very jolt, kick, noise when passing through the expansion joint, very big reduction the throughput and the driving travelling comfort of bridge for the navigating mate lacks the sense of security to cause bad influence in the society. When the condition of automobile jolt and driving deterioration is increased, the expansion joint can be damaged at an accelerated speed, the impact force of automobile load on the bridge and the stress of the bridge structure are increased, the service life of the bridge main body structure is greatly influenced, the structure of the main beam is damaged, and even major safety accidents such as collapse and damage of the bridge main body are caused, so that vicious circle is formed. Therefore, the requirements for smoothness and durability of the bridge expansion joint are huge.
However, the traditional steel support expansion joint is assembled, welded and bolted by field workers, and the installation level is uneven, so that the stress performance and durability of the expansion joint are poor, and the service life is short. In addition, the expansion joint of the traditional steel support has an innate expansion gap, so that the expansion joint has strong adaptive deformability, but greatly influences the driving comfort and increases the risk of bumping, thereby accelerating the service life of the expansion joint. The traditional seamless expansion joint has the problems of different degrees due to limited durability and small structural form of materials, and the traditional seamless expansion joint has poor adaptive deformation capacity and has only been applied to medium and small bridges.
In view of the above circumstances, the expansion joint device should combine the characteristics of stress of the expansion joint and the deficiencies in the above technologies, and a bridge expansion joint device with convenient construction, good driving comfort, strong adaptive deformability, simpler field operation and good use effect is needed. The invention can accelerate the field installation speed and quality, has stable structure and strong adaptive deformation capability, has good driving comfort, and has the advantages of convenient installation, inspection, maintenance and the like.
Disclosure of Invention
The invention mainly aims to provide a segmental prefabricated seamless expansion joint device and a construction method thereof, aiming at having stronger adaptive deformability and good driving comfort and having the advantages of convenient installation, inspection, maintenance and the like.
In order to achieve the purpose, the invention provides a segmental prefabricated seamless expansion joint device which comprises two C-shaped steels and a slidable steel plate, wherein the two C-shaped steels are respectively positioned on two beam bodies, the slidable steel plate is erected on two opposite grooves of the two C-shaped steels, two side edges of the slidable steel plate extend into the grooves of the two C-shaped steels, two ends of the slidable steel plate are connected with the C-shaped steels through elastic pieces, the slidable steel plate can slide relative to the C-shaped steels, an abrasion layer is laid above the slidable steel plate, a silicon rubber elastic-plastic body is arranged in a gap between the two side edges above the slidable steel plate and the C-shaped steels, and a flexible buffer piece is arranged between contact surfaces of the slidable steel plate and the C-shaped steels.
Preferably, the shape of the slidable steel plate is in a convex shape, the flexible buffer part is a rubber support fixed above two sides of the slidable steel plate extending into the groove of the C-shaped steel, and the top of the rubber support is abutted to the side wall of the C-shaped steel.
Preferably, the elastic component is a spring, a plurality of springs are evenly arranged on two sides of the slidable steel plate along the length direction of the expansion joint, one end of each spring is fixedly connected with the side edge of the slidable steel plate, and the other end of each spring is fixedly connected with the bottom wall of the C-shaped steel groove.
Preferably, the side wall of the C-shaped steel, which is in contact with the bottom surface of the slidable steel plate, is provided with a wear-resistant layer.
Preferably, the top of the slidable steel plate is also provided with a shear pin, and the shear pin is positioned inside the wearing layer; the top of the C-shaped steel is also provided with shear nails, and concrete is poured on the top of the C-shaped steel to cover the shear nails.
Preferably, C shaped steel deviates from and is fixed with the anchor steel sheet on slidable steel sheet one side, and the anchor steel sheet is provided with the polylith at expansion joint length direction, and the anchor steel sheet is connected with pre-buried U shaped steel, pre-buried U shaped steel and girder steel welded connection.
Preferably, the anchoring steel plate is further connected with a perforated steel bar in a welding mode, and the perforated steel bar is arranged in parallel with the length direction of the expansion joint.
Preferably, the seamless expansion joint device of prefabricated seamless joint of festival section still includes the rubber tape that is located slidable steel sheet below, and the both ends of rubber tape respectively with two C shaped steel fixed connection with waterproof.
The invention further provides a segment-based prefabricated seamless expansion joint device, which comprises the following steps:
connecting the slidable steel plate, the anchoring steel plate, the elastic piece and the rubber support to form an expansion joint unit, and then transporting the expansion joint unit to a construction site;
after the pre-embedded U-shaped steel bars are welded with the main beam steel bars, a plurality of expansion joint units are installed on the main beam of the bridge along the length direction of the expansion joints, the anchoring steel plates of the expansion joint units are correspondingly welded with the pre-embedded U-shaped steel bars 12, and the expansion joint units are welded and fixed through the perforated steel bars;
filling a gap between the slidable steel plate and the C-shaped steel by adopting a silicone rubber elastoplast body, and pouring concrete on the tops of the slidable steel plate and the C-shaped steel to form a wearing layer;
and pouring steel fiber concrete to enable the expansion joint unit and the main beam to form a stressed whole.
Preferably, still include the following step before welding pre-buried U type reinforcing bar and girder reinforcing bar:
welding and fixing the elastic piece and the C-shaped steel; a wear-resistant layer is coated on the C-shaped steel groove; a rubber belt is pre-installed between the two C-shaped steels; the shear nails are welded at the tops of the C-shaped steel top plates; the rubber support is pre-installed at the tops of two sides of the slidable steel plate and then plugged into the groove of the C-shaped steel.
The segment prefabricated seamless expansion joint device provided by the invention has the following beneficial effects:
1. the invention has the advantages of reasonable and stable structural design, clear force transmission path, simple and quick construction, strong adaptive deformability, good driving comfort, convenient installation, inspection and maintenance and the like; the C-shaped steel, the rubber support and the slidable steel plate are tightly combined, so that the high compression bearing capacity and the high adaptive deformation capacity can be provided, the safety and the durability of the expansion joint are ensured, the integrity is good, and the damage of the conventional expansion joint are effectively solved; the seamless combination form of the silicon rubber elastoplast body and the wearing layer greatly improves the driving comfort and can meet the use requirement of long-term service of the expansion joint;
2. the main components of the expansion joint unit are prefabricated in sections in a factory and are constructed in batches, so that the reliability and the construction quality of the expansion joint device are effectively guaranteed, the expansion joint device is assembled only in a section assembling mode on site, the construction period of the expansion joint is greatly shortened, the difficulty of site construction is reduced, and a good effect can be achieved on the durability of the expansion joint.
Drawings
Fig. 1 is a schematic structural view of a section prefabricated seamless expansion joint device according to the invention in a front view;
FIG. 2 is a schematic top view of the seamless expansion joint device according to the present invention;
FIG. 3 is a schematic structural diagram of a slidable steel plate in the segmental prefabrication seamless expansion joint device of the invention;
FIG. 4 is a schematic structural diagram of C-shaped steel in the segment prefabrication seamless expansion joint device;
fig. 5 is a schematic structural diagram of an anchoring steel plate in the segmental prefabrication seamless expansion joint device.
In the figure, 1-a slidable steel plate, 2-a spring, 3-a silicon rubber elastoplast body, 4-a rubber support, 5-C-shaped steel, 6-a rubber belt, 7-a wear-resistant layer, 8-a shear nail, 9-a wearing layer, 10-an anchoring steel plate, 11-a perforated steel bar, 12-an embedded U-shaped steel bar, 13-steel fiber concrete and 14-a main beam.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 5, in the preferred embodiment, a segmental prefabricated seamless expansion joint device comprises two C-shaped steels 5 respectively arranged on two beam bodies, and a slidable steel plate 1 erected on two opposite grooves of the two C-shaped steels 5, wherein, both side edges of the slidable steel plate 1 extend into the grooves of the two C-shaped steels 5, both ends of the slidable steel plate 1 are connected with the C-shaped steels 5 through elastic pieces, the slidable steel plate 1 can slide relative to the C-shaped steel 5, an abrasion layer 9 is laid above the slidable steel plate 1 (the abrasion layer 9 can effectively improve the driving comfort, and the abrasion layer 9 is thinner), the two sides of slidable steel sheet 1 top and the gap department between C shaped steel 5 are provided with silicon rubber elastoplast body 3 (thereby can effectual improvement driving comfort), are equipped with flexible bolster between the contact surface of slidable steel sheet 1 and C shaped steel 5.
Specifically, in this embodiment, the slidable steel plate 1 is "convex" in shape, the flexible buffer member is a rubber support 4 fixed above two sides of the slidable steel plate 1 extending into the groove of the C-shaped steel 5, and the top of the rubber support 4 abuts against the side wall of the C-shaped steel 5. The rubber mount 4 is fixed to the slidable steel plate 1 and serves as a support member for the C-section steel 5.
Specifically, in this embodiment, the elastic component is spring 2 (spring 2 realizes the removal and the reseing of slidable steel sheet 1), and the both sides of slidable steel sheet 1 evenly are provided with many springs 2 along the length direction of expansion joint, the one end of spring 2 and the side fixed connection of slidable steel sheet 1, the other end of spring 2 and the diapire fixed connection of 5 recesses of C shaped steel. The springs 2 are arranged along the direction of the expansion joint at intervals of 0.2-1 meter. The segment prefabricated seamless expansion device realizes the expansion function of the bridge structure through the matching of the spring 2 and the slidable steel plate 1.
Further, the side wall of the C-section steel 5 contacting the bottom surface of the slidable steel plate 1 is provided with a wear-resistant layer, thereby reducing wear of the C-section steel 5 and the slidable steel plate 1 due to sliding.
Further, a shear pin 8 is further arranged at the top of the slidable steel plate 1, and the shear pin 8 is located inside the wearing layer 9; the top of the C-shaped steel 5 is also provided with a shear nail 8, and concrete is poured on the top of the C-shaped steel 5 to cover the shear nail 8.
Further, C shaped steel 5 deviates from and is fixed with anchor steel sheet 10 on 1 one side of slidable steel sheet, and anchor steel sheet 10 is provided with the polylith at expansion joint length direction, and anchor steel sheet 10 is connected with pre-buried U shaped steel bar 12, pre-buried U shaped steel bar 12 and the 14 steel bar welded connection of girder. In addition, the anchor steel plate 10 is welded with the perforated steel bar 11, and the perforated steel bar 11 is parallel to the length direction of the expansion joint.
Specifically, the anchoring steel plates 10 are welded and fixed with the C-shaped steel 5 at intervals of 0.2-1 meter along the expansion joint direction. The distance between two adjacent embedded U-shaped steel bars 12 is 0.2-1 meter.
Further, this seamless expansion joint device of prefabricated seamless type of festival section still includes the rubber tape 6 that is located slidable steel sheet 1 below, and the both ends of rubber tape 6 respectively with two C shaped steel 5 fixed connection with waterproof.
The construction method of the section prefabricated seamless expansion joint device comprises the following steps:
1) manufacturing each part of the seamless telescopic device main body in a factory, wherein each part comprises a shear nail 8, a slidable rubber support 4, a slidable steel plate 1, a spring 2, C-shaped steel 5, a rubber belt 6 and an anchoring steel plate 10, and a wear-resistant layer 7 is coated on the side wall of a groove of the C-shaped steel 5;
2) the method is characterized in that the method is carried out in a factory according to 1-2 m unit sections through integral assembly welding forming, and assembly components mainly comprise shear nails 8, rubber supports 4, slidable steel plates 1, springs 2, C-shaped steel 5, rubber belts 6 and anchoring steel plates 10. After the expansion joint units are assembled, transporting the expansion joint units to a construction site;
3) when the expansion joint unit is prefabricated in a factory and the main beam 14 is constructed on site, welding and fixing the embedded U-shaped steel bars 12 and the main beam 14 steel bars at intervals of 0.2-1 meter;
4) the expansion joint units of all the sections are sequentially placed on a bridge girder 14 along the direction of the arrangement of the expansion joints, the rubber belts 6 are installed, the springs 2 and the C-shaped steel 5 are welded, the anchoring steel plates 10 and the pre-embedded U-shaped steel bars 12 are correspondingly welded sequentially, and the anchoring steel plates are welded and fixed through the perforated steel bars 11.
5) The gap between the slidable steel plate 1 and the C-shaped steel 5 is filled with the silicon rubber elastoplast body 3, and the top of the slidable steel plate 1 and the C-shaped steel 5 is poured with a wearing layer 9.
6) After the seamless expansion device is fixed, the steel fiber concrete 13 is poured to enable the expansion joint and the main beam 14 to form a stressed whole, and the steel fiber concrete 13 can be checked and accepted after being cured.
After the gaps between the main beams 14 are expanded, contracted, unevenly settled and impacted by load, the expansion joints between the main beams 14 are dislocated vertically, transversely and in a steering manner, so that the expansion joints between the main beams 14 are subjected to fatigue failure, cracking and damage under the impact of an automobile. The cooperation of the slidable steel plate 1, the spring 2 and the C-shaped steel 5 can be adaptive to the extension and contraction of the gap between the main beams 14; the cooperation of the slidable steel plate 1, the rubber support 4 and the C-shaped steel 5 can be self-adaptive to uneven settlement, vertical and steering dislocation among the main beams 14. Meanwhile, the seamless structure among the wearing layer 9, the silicon rubber elastoplast body 3, the slidable steel plate 1 and the C-shaped steel 5 can obviously improve the driving comfort, reduce the impact force of the driving on the expansion joint of the invention and ensure that the driving is smoother. The invention can provide stronger compression-resistant bearing capacity, ensures the safety and durability of the bridge expansion joint and has good integrity.
The segment prefabricated seamless expansion joint device provided by the invention has the following beneficial effects:
1. the invention has the advantages of reasonable and stable structural design, clear force transmission path, simple and quick construction, strong adaptive deformability, good driving comfort, convenient installation, inspection and maintenance and the like; the C-shaped steel 5, the rubber support 4 and the slidable steel plate 1 are tightly combined, so that the high compression-resistant bearing capacity and the high adaptive deformation capacity can be provided, the safety and the durability of the expansion joint are ensured, the integrity is good, and the damage of the conventional expansion joint are effectively solved; in addition, the seamless combination form of the silicon rubber elastoplast body 3 and the wearing layer 9 greatly improves the driving comfort and can meet the use requirement of long-term service of the expansion joint;
2. the main components of the expansion joint unit are prefabricated in sections in a factory and are constructed in batches, so that the reliability and the construction quality of the expansion joint device are effectively guaranteed, the expansion joint device is assembled only in a section assembling mode on site, the construction period of the expansion joint is greatly shortened, the difficulty of site construction is reduced, and a good effect can be achieved on the durability of the expansion joint.
The invention further provides a construction method of the segment prefabricated seamless expansion joint device.
In this preferred embodiment, a prefabricated seamless expansion joint device based on above-mentioned section includes the following steps:
the slidable steel plate 1, the anchoring steel plate 10, the elastic piece and the rubber support 4 are connected into an expansion joint unit and then transported to a construction site;
after the embedded U-shaped steel bars 12 and the main beam 14 are welded, a plurality of expansion joint units are installed on the main beam 14 of the bridge along the length direction of the expansion joints, the anchoring steel plates 10 of the expansion joint units are correspondingly welded with the embedded U-shaped steel bars 12, and the expansion joint units are welded and fixed through the perforated steel bars 11;
filling a gap between the slidable steel plate 1 and the C-shaped steel 5 by using a silicon rubber elastoplast body 3, and pouring concrete on the tops of the slidable steel plate 1 and the C-shaped steel 5 to form a wearing layer 9;
and pouring steel fiber concrete 13 to enable the expansion joint unit and the main beam 14 to form a stressed whole.
Further, still include the following step before with pre-buried U shaped steel muscle 12 and 14 steel bar welding of girder:
welding and fixing the elastic piece and the C-shaped steel 5; a wear-resistant layer 7 is coated on the groove of the C-shaped steel 5; a rubber belt 6 is pre-installed between the two C-shaped steels 5; the shear nails 8 are welded on the tops of the C-shaped steel 5 top plates; the rubber support 4 is pre-installed at the tops of two sides of the slidable steel plate 1 and then plugged into the groove of the C-shaped steel 5.
According to the construction method of the section prefabricated seamless expansion joint device, the expansion joint units are all prefabricated in sections in a factory and are constructed in batches, so that the reliability and the construction quality of the expansion joint device are effectively guaranteed, the expansion joint device is assembled only in a section assembling mode on site, the construction period of the expansion joint is greatly shortened, the difficulty of site construction is reduced, and a good effect on the durability of the expansion joint can be achieved.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a seamless expansion joint device is prefabricated to festival section, its characterized in that, including two C shaped steel that are located two roof beam bodies respectively and erect the slidable steel sheet on two relative recesses of two C shaped steel, wherein, the both sides limit of slidable steel sheet all stretches into inside the recess of two C shaped steel, and the both ends of slidable steel sheet all are connected with C shaped steel through the elastic component, and the slidable steel sheet is for C shaped steel slidable, and the wearing and tearing layer has been laid to the top of slidable steel sheet, and the both sides limit of slidable steel sheet top and the gap department between the C shaped steel are provided with the silicon rubber elastoplast body, are equipped with flexible bolster between the contact surface of slidable steel sheet and C shaped steel.
2. The apparatus according to claim 1, wherein the slidable steel plate is in a shape of a "convex", the flexible buffer member is a rubber support fixed above two sides of the slidable steel plate extending into the groove of the C-shaped steel, and the top of the rubber support abuts against the side wall of the C-shaped steel.
3. The apparatus according to claim 1, wherein the elastic member is a spring, a plurality of springs are uniformly disposed on both sides of the slidable steel plate along the length direction of the expansion joint, one end of each spring is fixedly connected to a side of the slidable steel plate, and the other end of each spring is fixedly connected to the bottom wall of the groove of the C-shaped steel.
4. The apparatus according to claim 1, wherein the side wall of the C-shaped steel which contacts the bottom surface of the sliding steel plate is provided with a wear-resistant layer.
5. The segment-prefabricated seamless expansion joint device according to claim 1, wherein a shear nail is further arranged at the top of the slidable steel plate and is positioned inside the wearing layer; the top of the C-shaped steel is also provided with shear nails, and concrete is poured on the top of the C-shaped steel to cover the shear nails.
6. The device for prefabricating a seamless expansion joint according to claim 1, wherein an anchoring steel plate is fixed on one side of the C-shaped steel, which is far away from the slidable steel plate, a plurality of anchoring steel plates are arranged in the length direction of the expansion joint, the anchoring steel plates are connected with embedded U-shaped steel bars, and the embedded U-shaped steel bars are welded with main beam steel bars.
7. The apparatus according to claim 6, wherein the anchor steel plate is welded to a perforated steel bar, and the perforated steel bar is disposed in parallel to the length direction of the expansion joint.
8. The apparatus according to claim 1, further comprising a rubber band under the slidable steel plate, wherein both ends of the rubber band are fixedly connected to the two C-shaped steels for waterproofing.
9. A segment prefabricated seamless expansion joint device based on any one of claims 1 to 8, characterized by comprising the following steps:
connecting the slidable steel plate, the anchoring steel plate, the elastic piece and the rubber support to form an expansion joint unit, and then transporting the expansion joint unit to a construction site;
after the pre-embedded U-shaped steel bars are welded with the main beam steel bars, a plurality of expansion joint units are installed on the main beam of the bridge along the length direction of the expansion joints, the anchoring steel plates of the expansion joint units are correspondingly welded with the pre-embedded U-shaped steel bars 12, and the expansion joint units are welded and fixed through the perforated steel bars;
filling a gap between the slidable steel plate and the C-shaped steel by adopting a silicone rubber elastoplast body, and pouring concrete on the tops of the slidable steel plate and the C-shaped steel to form a wearing layer;
and pouring steel fiber concrete to enable the expansion joint unit and the main beam to form a stressed whole.
10. The device for prefabricating a seamless expansion joint according to the segment of claim 9, further comprising the following steps before welding the embedded U-shaped steel bars and the main beam steel bars:
welding and fixing the elastic piece and the C-shaped steel; a wear-resistant layer is coated on the C-shaped steel groove; a rubber belt is pre-installed between the two C-shaped steels; the shear nails are welded at the tops of the C-shaped steel top plates; the rubber support is pre-installed at the tops of two sides of the slidable steel plate and then plugged into the groove of the C-shaped steel.
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| CN202111218985.1A CN113914210A (en) | 2021-10-20 | 2021-10-20 | Segmental prefabricated seamless expansion joint device and construction method thereof |
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| CN202111218985.1A CN113914210A (en) | 2021-10-20 | 2021-10-20 | Segmental prefabricated seamless expansion joint device and construction method thereof |
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| JP2010059627A (en) * | 2008-09-01 | 2010-03-18 | Heatrock Kogyo Kk | Expansion joint device |
| US20100281807A1 (en) * | 2010-05-17 | 2010-11-11 | Paul Bradford | Expansion joint system using flexible moment connection and friction springs |
| CN104594191A (en) * | 2015-02-16 | 2015-05-06 | 西安公路研究院 | Corrugated steel plate built-in seamless expansion device between girder and bridge abutment and construction method of seamless expansion device |
| CN207973997U (en) * | 2018-01-11 | 2018-10-16 | 同济大学 | Inverted T shaped bloom bridge extension joint |
| CN109680606A (en) * | 2019-02-28 | 2019-04-26 | 江苏中路工程检测有限公司 | A kind of durable expansion joint of dustproof and waterproof |
| CN109972504A (en) * | 2019-03-21 | 2019-07-05 | 唐峰 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
| CN211256645U (en) * | 2019-07-31 | 2020-08-14 | 同济大学 | Tensile anti-collision type anti-seismic expansion joint |
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2021
- 2021-10-20 CN CN202111218985.1A patent/CN113914210A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059627A (en) * | 2008-09-01 | 2010-03-18 | Heatrock Kogyo Kk | Expansion joint device |
| US20100281807A1 (en) * | 2010-05-17 | 2010-11-11 | Paul Bradford | Expansion joint system using flexible moment connection and friction springs |
| CN104594191A (en) * | 2015-02-16 | 2015-05-06 | 西安公路研究院 | Corrugated steel plate built-in seamless expansion device between girder and bridge abutment and construction method of seamless expansion device |
| CN207973997U (en) * | 2018-01-11 | 2018-10-16 | 同济大学 | Inverted T shaped bloom bridge extension joint |
| CN109680606A (en) * | 2019-02-28 | 2019-04-26 | 江苏中路工程检测有限公司 | A kind of durable expansion joint of dustproof and waterproof |
| CN109972504A (en) * | 2019-03-21 | 2019-07-05 | 唐峰 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
| CN211256645U (en) * | 2019-07-31 | 2020-08-14 | 同济大学 | Tensile anti-collision type anti-seismic expansion joint |
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