CN211947932U - Novel flexible telescoping device suitable for small and medium span bridge - Google Patents
Novel flexible telescoping device suitable for small and medium span bridge Download PDFInfo
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- CN211947932U CN211947932U CN201922465731.4U CN201922465731U CN211947932U CN 211947932 U CN211947932 U CN 211947932U CN 201922465731 U CN201922465731 U CN 201922465731U CN 211947932 U CN211947932 U CN 211947932U
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Abstract
The utility model discloses a novel flexible expansion device suitable for a middle-small span bridge, which comprises a flexible expansion joint plate, an anchoring bolt, a water stop and a leveling layer, wherein the flexible expansion joint plate is hollowed with a W-shaped fold, a longitudinal bridge is provided with a groove and a bump which are matched with each other in the lateral direction, and bolt holes are arranged at the two sides; the leveling layer is poured on the top surface of the beam plate; the water stop is nailed on the side surface of the end part of the beam slab through an expansion bolt; the anchoring bolt penetrates through the flexible telescopic seam plate and the leveling layer to enter the beam plate and is fixedly connected with the beam plate. The utility model designs hollow W-shaped folds in the flexible expansion joint plate to absorb the expansion deformation of the small and medium span bridges, and the hollow lines on the surface can have the functions of quick drainage and anti-skid; the longitudinal bridge lateral surface of the telescopic device adopts a concave-convex combined limiting connection mode to ensure the integral stress performance of the telescopic device; the expansion device is a modularized prefabricated component, is convenient to install, has strong adaptability and is an ideal bridge expansion device.
Description
Technical Field
The utility model relates to a bridge expansion joint technical field especially relates to a novel flexible telescoping device suitable for well little span bridge.
Background
Along with the continuous development of economy in China, the scale of infrastructure such as bridges is continuously enlarged, the using amount of bridge expansion devices is larger and larger, and the application range is wider and wider. People have higher and higher requirements on driving comfort and safety and reliability, and the use performance and safety performance of the telescopic device are highly valued. The common telescopic device is often big, the big problem of noise of vibrations under the heavy load condition. Because the common telescopic device has high rigidity and lacks self-adaptive deflection capacity, the damage and the maintenance frequency are quite high. However, the telescopic device is not easy to repair in one step, the repair rate is high, the repair and replacement construction period is long, and the normal transportation is greatly influenced.
The steel manufacturing is adopted mostly to traditional expansion joint, rigid material telescoping device and flexible bituminous paving link up and lead to the vehicle to pass through the noise too big, rigidity anchor system probably produces the fracture and destroys under the vehicle impact load, seriously influence driving comfort and security, and the expansion joint structure is too complicated, the assembly degree of difficulty is high, often need whole dismantlement change when damaging, consume the longer time, there is the hidden danger in maintenance personal safety, traffic control causes great current pressure during the construction.
In addition, the adjacent two ends of the common telescopic device are free ends, are independently stressed and cannot transfer deflection loads, and the local parts of the common telescopic device can be damaged and warped under the conditions of long-term unbalance loading of vehicle flow and the like, so that the driving safety is influenced.
Therefore, a novel flexible expansion device is urgently needed, and the problems that the noise of the vehicle passing through the gap is large, the installation and maintenance of the expansion gap are difficult, the damage rate of the expansion device is high and the like are solved.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model provides a novel flexible telescoping device suitable for little span bridge in.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize.
A novel flexible expansion device suitable for a bridge with a medium and small span is arranged on the upper portion of the end face of a beam plate at an expansion joint of the bridge and comprises a flexible expansion joint plate, anchoring bolts, a water stop belt and a leveling layer, wherein W-shaped folds are hollowed in the flexible expansion joint plate, a connection mode of concave-convex combination is adopted on the lateral side of a longitudinal bridge, a groove is formed in one end of the flexible expansion joint plate, a lug is formed in the other end of the flexible expansion joint plate, concave-convex parts at two ends of the flexible expansion joint plate are matched, and bolt holes are formed in two sides of the; the leveling layer is poured on the top surface of the beam plate; the water stop is nailed on the side surface of the end part of the beam slab through an expansion bolt; the anchoring bolt penetrates through the flexible telescopic seam plate and the leveling layer to enter the beam plate and is fixedly connected with the beam plate.
The utility model discloses a further technique:
preferably, the end part of the flexible expansion joint plate is grooved, so that the consistency of the overall deformation performance is ensured.
Preferably, the thickness of the flexible expansion joint plate is 20-50mm, and the width of the flexible expansion joint plate is 250-500 mm.
Preferably, the flexible telescopic seam plate is prefabricated in a segmented modularized mode, the length of each modularized unit is 300mm-800mm, and 2-5 drill holes are formed in two sides of the flexible telescopic seam plate and are convenient to fix with the beam plate.
Preferably, the anchoring bolt penetrates through the flexible telescopic seam plate and the leveling layer, enters the beam plate through a drill hole positioned in front of the flexible telescopic seam plate, and is pre-filled with epoxy anchoring adhesive to realize the fixed connection with the beam plate.
Preferably, the water stop belt is bent into a U-shaped groove, and two sides of the U-shaped groove are fastened on the side faces of the end parts of the beam plate through expansion bolts.
Preferably, the leveling layer is poured on the top surface of the beam slab, and modified epoxy resin concrete mortar is adopted, wherein the thickness of the leveling layer is 1mm-5 mm.
The beneficial effects are that: the utility model discloses simple structure, the drawing and pressing through the inside W type fold of flexible seam board warp and offsets middle and small span bridge tip and shift, and the fretwork line on surface can have quick drainage and anti-skidding function concurrently simultaneously. The longitudinal bridge lateral surfaces of adjacent flexible expansion joint plates adopt a flexible limiting connection mode of grooves and lugs, the overall stress performance of the expansion joint is guaranteed on the premise of not influencing longitudinal displacement, and the occurrence of local damage warping is avoided. The flexible expansion joint plate can be made of flexible materials such as rubber or high molecular polymers, can play a role in shock absorption and noise reduction, has small damage to the anchoring part, and prolongs the service life of the expansion joint. The telescopic seam plate can be prefabricated in a segmented modularized mode, can adapt to various bridge widths and oblique crossing angles, is convenient to install on site quickly, is low in dismounting and replacing cost after being damaged, effectively reduces the construction period, and ensures the construction quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a schematic view of the present invention;
fig. 2 is a plan view of the present invention;
FIG. 3 is a longitudinal sectional view of the present invention;
fig. 4 is a cross-sectional view of the present invention;
FIG. 5 is a schematic view of the flexible expansion joint plate of the present invention;
in the figure, 1-flexible expansion joint plate, 2-anchoring bolt, 3-water stop, 4-leveling layer, 5-groove and 6-lug.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.
Example 1: the novel flexible expansion device suitable for the medium-small span bridge shown in the figures 1-4 can be used in any medium-small span bridge structure suitable for the traditional expansion device. The bridge expansion device consists of a flexible expansion joint plate 1, an anchor bolt 2, a water stop 3, a leveling layer 4, a 5-groove and a 6-lug.
As shown in the attached drawing, the leveling layer 4 is formed by pouring modified epoxy resin concrete mortar on the top surface of the reserved notch of the beam plate according to the designed thickness. The water stop 3 is bent into a U-shaped groove and placed between beam seams, and two sides of the U-shaped groove are nailed on the side face of the end part of the beam slab through expansion bolts. The flexible expansion joint plate 1 is prefabricated in a modularized mode according to design requirements, the flexible expansion joint plate 1 is placed on the leveling layer 4, and positioning and drilling are conducted through the preset bolt holes in the flexible expansion joint plate 1. And (5) pouring epoxy anchoring adhesive into the drilled hole, and installing the anchoring bolt 2. And after the anchoring adhesive is solidified, the installation of the telescopic device is completed.
The flexible expansion joint plate longitudinal bridge adopts the connection mode of concave-convex combination to the side, one end sets up recess 5, and one end sets up lug 6, and recess 5 is identical with lug 6, under the prerequisite that does not influence vertical shift, has guaranteed the whole atress performance of telescoping device, avoids taking place local destruction warpage, has improved driving safety.
The flexible expansion joint plate can be made of rubber or polymer composite materials, and not only can meet the strength requirement, but also has certain impact toughness and deformability.
The flexible expansion joint plate is hollowed to form W-shaped folds, flexible deformation of the small and medium-span bridge can be absorbed by the flexible expansion joint plate through transverse tension and compression deformation of the folds due to the use of flexible materials, and meanwhile, the surface hollowed lines of the flexible expansion joint plate can have the functions of quick drainage and skid resistance, so that the functions of shock absorption, noise reduction, displacement and the like can be smoothly realized, and the driving comfort is improved.
The W-shaped folds are formed in the overlooking state of the flexible telescopic seam plate, the flexible telescopic seam plate is a plane in the orthographic state, and meanwhile the hollow-out widths of the W-shaped folds are kept consistent.
The utility model discloses flexible seam board extrusion and tensile change are lateral deformation, like figure 5. The thickness of the flexible expansion joint plate is 30mm, and the width of the flexible expansion joint plate is 300 mm.
The flexible expansion joint plate can be prefabricated in a segmented modularized mode, can adapt to various bridge widths and oblique crossing angles, is convenient to construct and maintain and replace in a later period, and the length of the modularized units is 650 mm. The flexible seam board both sides respectively are equipped with 3 bolt holes and conveniently fix with the roof beam board.
Meanwhile, as shown in fig. 1-2, the upper end and the lower end of the flexible expansion joint plate are provided with notches, and the notches are matched with the W-shaped folds to increase the expansion deformation capacity.
The anchor bolt adopts a high-strength bolt, so that the construction quality is ensured.
The water stop belt is bent into a U-shaped groove, and is nailed into two sides of a beam seam through expansion bolts, so that the water stop belt is convenient and quick.
The leveling layer adopts modified epoxy resin concrete mortar, so that better connection performance is realized, and the requirement of smoothness of the telescopic device and a traffic surface is met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the present invention, unless explicitly specified or limited, features are not necessarily present independently, but are interleaved with each other. The foregoing shows and describes the principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention to become the only choice. The utility model discloses under the spirit and the scope requirement of utility model, the utility model discloses still can further change and optimize, right the utility model discloses the improvement optimization that goes on all gets into the utility model that claims, the utility model discloses claim the specific scope and be defined by attached claim and equivalent.
Claims (8)
1. The utility model provides a novel flexible telescoping device suitable for well small span bridge which characterized in that: the expansion device is arranged on the upper portion of the end face of the beam plate at the expansion joint of the bridge and comprises a flexible expansion joint plate, anchor bolts, a water stop and a leveling layer, wherein the flexible expansion joint plate is hollowed to form W-shaped folds, bolt holes are formed in two sides of the flexible expansion joint plate, the leveling layer is poured on the top surface of the beam plate, the water stop is nailed on the side face of the end portion of the beam plate through expansion bolts, and the anchor bolts penetrate through the flexible expansion joint plate and the leveling layer to enter the beam plate and are fixedly connected with the beam plate.
2. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the thickness of the flexible expansion joint plate is 20-50mm, and the width of the flexible expansion joint plate is 250-500 mm.
3. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the flexible telescopic seam plate is prefabricated in a segmented modularized mode, the length of each modularized unit is 300mm-800mm, and 2-5 drill holes are formed in two sides of the flexible telescopic seam plate and are convenient to fix with a beam plate.
4. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the end part of the flexible expansion joint plate is provided with a groove.
5. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the longitudinal bridge of the flexible telescopic seam plate adopts a concave-convex combination connection mode towards the side surface, one end of the flexible telescopic seam plate is provided with a groove, the other end of the flexible telescopic seam plate is provided with a convex block, and concave-convex parts at two ends are matched.
6. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the anchoring bolt penetrates through the flexible telescopic seam plate and the leveling layer, enters the beam plate through a drill hole positioned in front of the flexible telescopic seam plate, and epoxy anchoring glue is poured into the drill hole in advance to realize the fixed connection with the beam plate.
7. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the water stop belt is bent into a U-shaped groove, and two sides of the water stop belt are nailed on the side face of the end part of the beam slab through expansion bolts.
8. The novel flexible expansion device suitable for the medium and small span bridge according to claim 1, wherein: the leveling layer is made of modified epoxy resin concrete mortar, and the thickness of the leveling layer is 1mm-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465731.4U CN211947932U (en) | 2019-12-31 | 2019-12-31 | Novel flexible telescoping device suitable for small and medium span bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465731.4U CN211947932U (en) | 2019-12-31 | 2019-12-31 | Novel flexible telescoping device suitable for small and medium span bridge |
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| CN211947932U true CN211947932U (en) | 2020-11-17 |
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| CN201922465731.4U Active CN211947932U (en) | 2019-12-31 | 2019-12-31 | Novel flexible telescoping device suitable for small and medium span bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024687A1 (en) * | 2021-08-24 | 2023-03-02 | 杨锐 | Low-noise bridge polymer expansion device |
| CN115961545A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Assembled tension-free telescopic device |
-
2019
- 2019-12-31 CN CN201922465731.4U patent/CN211947932U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024687A1 (en) * | 2021-08-24 | 2023-03-02 | 杨锐 | Low-noise bridge polymer expansion device |
| CN115961545A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Assembled tension-free telescopic device |
| CN115961545B (en) * | 2023-01-16 | 2023-08-18 | 黑龙江鑫交研桥梁科技开发有限公司 | Assembled no pulling force telescoping device |
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