CN106996079B - Novel vibration-resistant noise-reducing multidirectional-displacement comb plate type telescopic device and mounting method thereof - Google Patents
Novel vibration-resistant noise-reducing multidirectional-displacement comb plate type telescopic device and mounting method thereof Download PDFInfo
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- CN106996079B CN106996079B CN201710366262.3A CN201710366262A CN106996079B CN 106996079 B CN106996079 B CN 106996079B CN 201710366262 A CN201710366262 A CN 201710366262A CN 106996079 B CN106996079 B CN 106996079B
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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Abstract
The invention discloses a novel vibration-resistant noise-reducing multidirectional deflection comb plate type telescopic device and a construction method thereof. The installation method comprises the following steps: assembling the fixed comb plate, the sliding plate assembly and the anchor bars in a reserved groove of a beam body at one side, and welding and leveling the fixed comb plate, the sliding plate assembly and the anchor bars with the beam body embedded bars; the displacement box body, the compression support, the bearing support and the cross beam which are assembled in advance are integrally assembled in a reserved groove of the other side beam body and are welded and leveled with the pre-buried ribs of the beam body, the comb teeth ends of the seam-crossing movable comb plate are erected on the sliding plate assembly, and the comb teeth of the comb teeth ends in the seam-crossing movable comb plate are correspondingly inserted with the comb teeth of the fixed comb plate; and after the gaps between teeth are adjusted, the gap-crossing movable comb plate is connected with the middle parts of the backing plate and the cross beam by using loosening bolts and loosening nuts, and finally, concrete is backfilled after the whole leveling.
Description
Technical Field
The invention relates to the technical field of bridge expansion devices, in particular to a novel vibration-resistant noise-reducing multidirectional deflection comb plate type expansion device and an installation method thereof.
Background
In recent years, with the increase of infrastructure investment, the highway field is rapidly developed, especially, expressways, municipal overhead bridges, large independent bridges, sea bridges and the like are rapidly developed, and the bridges are used as ties for realizing shortcuts across obstacles, and have high requirements on forms, functions, safety, appearance and the like. The telescopic device is a generic name of various devices for ensuring that vehicles stably pass through the bridge deck and meet the displacement requirement of the bridge deck, and is an important component of the bridge.
The bridge expansion device is placed at the reserved expansion gap area at the end part of the bridge through a construction process, and high technical requirements on the performance, quality, safety, appearance and the like of the expansion device are required because the expansion gap position is a key part with concentrated stress and complexity and variability of the bridge structure. The traditional multidirectional deflection comb plate type bridge expansion device is generally existing due to practical conditions of structure and traffic and due to ultra-wide and overweight phenomenon of driving on a road, the core element of the expansion device can generate irreversible fatigue damage under the long-term load impact of a vehicle, so that the expansion device is loose as a whole, the multidirectional deflection function is difficult to realize, the basic function of the expansion device cannot be achieved, and unnecessary traffic accidents are easy to occur.
Meanwhile, the traditional multidirectional deflection comb plate type bridge expansion device is generally not provided with a special vibration and noise resistant device, so that fluctuation and noise feeling of a vehicle running through the expansion device are strong, and driving comfort is seriously affected.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a novel anti-vibration noise-reduction multidirectional deflection comb plate type telescopic device which can play a role in anti-vibration noise reduction and improve driving comfort, can adapt to multidirectional deformation of a bridge and increase the service life of the telescopic device, and an installation method thereof.
The invention provides a novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, which is arranged on an expansion joint between two side beam bodies in a crossing manner and comprises a fixed comb plate, a joint-crossing movable comb plate, a sliding plate assembly, a displacement box body, a vibration-resistant noise-reducing unit and a cross beam;
the fixed comb plate is fixed on a side beam body, and a sliding plate assembly is arranged below the fixed comb plate; the seam-crossing movable comb plate comprises a mounting end and a comb end, and is erected on the sliding plate assembly through the comb end and can slide on the sliding plate assembly; wherein, the comb teeth at the comb teeth end in the seam-crossing movable comb teeth plate are correspondingly inserted with the comb teeth of the fixed comb teeth plate;
the displacement box body is a concave hollow box body, the middle part of the displacement box body is provided with an upper opening, and the semi-rings of the displacement box body are arranged at the two sides and the bottom of the mounting end of the seam-crossing movable comb plate and are fixed on the other side beam body; the vibration and noise reduction unit comprises a base plate, a compression support and a pressure bearing support, the cross beam is assembled in the displacement box body, two ends of the cross beam are placed on the pressure bearing support, and the compression support compresses two ends of the cross beam in the displacement box body; the mounting end of the seam-crossing movable comb plate is connected with the middle part of the cross beam through a base plate.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, the telescopic device further comprises a cross beam stop block, and the cross beam stop block is arranged on the inner side surface of the displacement box body to limit longitudinal displacement of the cross beam.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, a movable gap is formed between the displacement box body and the seam-crossing movable comb plate.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, a flexible rotating pad for protecting a beam end is arranged between the seam-crossing movable comb plate and the other side beam body.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, the compression support is assembled on the cross beam in a pre-compression mode.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, the fixed comb plate is fixed by adopting the anchor bars penetrating through the sliding plate assembly and the fixed comb plate together with the locknuts.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, the mounting end of the seam-crossing movable comb plate is fixed by adopting a lockbolt penetrating through the seam-crossing movable comb plate, the base plate and the cross beam and a locknut.
According to one embodiment of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, the compression support and the pressure bearing support are elastic elements capable of being deformed.
The invention further provides an installation method of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device, which comprises the following steps of:
A. assembling the fixed comb plate, the sliding plate assembly and the anchor bars in a reserved groove of a beam body at one side, and welding and leveling the fixed comb plate, the sliding plate assembly and the anchor bars with the beam body embedded bars;
B. the displacement box body, the compression support, the bearing support and the cross beam which are assembled in advance are integrally assembled in a reserved groove of the other side beam body and are welded and leveled with the pre-buried ribs of the beam body, the comb teeth ends of the seam-crossing movable comb plate are erected on the sliding plate assembly, and the comb teeth of the comb teeth ends in the seam-crossing movable comb plate are correspondingly inserted with the comb teeth of the fixed comb plate;
C. and after the gaps between teeth are adjusted, the gap-spanning movable comb plate is connected with the middle parts of the backing plate and the cross beam by using the lockbolts and locknuts, and finally, the concrete is backfilled after the whole leveling.
Compared with the prior art, the novel anti-vibration noise-reduction multidirectional deflection comb plate type telescopic device is a modular telescopic device, has a simple structure and is convenient to install, the effects of anti-vibration noise reduction can be achieved, the travelling comfort is improved, the multidirectional deformation of a bridge can be adapted, the service life of the telescopic device is prolonged, and compared with the traditional multidirectional deflection comb plate type telescopic device, an anti-rebound system is saved. If the vehicle is damaged due to long-term abnormal load, compared with the traditional telescopic device, the telescopic device is extremely convenient to maintain in a construction unit, and the maintenance and replacement of the core element are convenient, so that the effects of quick construction and quick traffic can be achieved.
Drawings
Fig. 1 illustrates a schematic structural view of a novel vibration-resistant noise-reducing multidirectional-shift comb plate type telescopic device according to an exemplary embodiment of the present invention.
Figure 2 shows a cross-sectional view along line A-A in figure 1.
Fig. 3 shows a cross-sectional view along line B-B in fig. 1.
Fig. 4 is a plan view showing the overall structure of a novel vibration-resistant noise-reducing multidirectional-shift comb plate type telescopic device according to an exemplary embodiment of the present invention.
Reference numerals illustrate:
the comb comprises a 10-fixed comb plate, a 11-fixed comb plate comb teeth, a 20-seam-crossing movable comb plate, a 21-mounting end, a 22-comb teeth end, a 23-seam-crossing movable comb plate comb teeth, a 30-slide plate assembly, 31-anchoring ribs, 32-locknuts, 33-lockbolts, a 40-displacement box body, 41-cross beam stop blocks, 50-cross beams, 60-compression supports, 70-bearing supports, 80-backing plates, 90-beam bodies, 91-beam body embedded ribs and 100-flexible rotating pads.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The structure and principle of the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device are described in detail below.
Fig. 1 illustrates a structural schematic view of a novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to an exemplary embodiment of the present invention, fig. 2 illustrates a sectional view taken along a line A-A of fig. 1, and fig. 3 illustrates a sectional view taken along a line B-B of fig. 1.
As shown in fig. 1 to 3, according to an exemplary embodiment of the present invention, the novel anti-vibration noise-reducing multidirectional displacement comb plate type expansion device spans an expansion joint installed between two side beams 90 and includes a fixed comb plate 10, a span movable comb plate 20, a slider assembly 30, a displacement case 40, an anti-vibration noise-reducing unit, and a cross beam 50. The invention discloses a modular replaceable novel multidirectional shifting comb plate type telescopic device, which is designed by combining a comb plate structure with a modular telescopic device, wherein the comb plate structure is not shown before, and a displacement box body is perfectly combined with a comb plate.
Specifically, the fixed comb plate 10 in the present invention is fixed to a side frame body 90 and a slider assembly 30 is provided below the fixed comb plate 10. Wherein the fixed comb plate 10 is provided with comb teeth 11 and is fixed and immovable, it is possible to fix the fixed comb plate 10 with locknuts 32 using anchor bars 31 penetrating the slide plate assembly 30 and the fixed comb plate 10.
The movable joint-spanning comb plate 20 comprises a mounting end 21 and a comb end 22, the movable joint-spanning comb plate 20 is erected on the sliding plate assembly 30 through the comb end 22 and can slide on the sliding plate assembly 30, and the comb teeth 23 of the comb end 22 in the movable joint-spanning comb plate 20 are correspondingly inserted with the comb teeth 11 of the fixed comb plate 10. Wherein, the movable comb plate 20 can slide along the bridge along with the expansion of the bridge, and the expansion joint is arranged below the movable comb plate 20, and the movable comb plate 20 and the fixed comb plate 10 meet the expansion requirement of the bridge through mutually matched comb teeth.
The displacement box body 40 adopted by the invention is a hollow box body with a concave shape, the middle part of the hollow box body is provided with an upper opening, and the displacement box body 40 is arranged at the two sides and the bottom of the mounting end 21 of the seam-crossing movable comb plate 20 in a semi-ring manner and is fixed on the other side beam body 90. The vibration and noise resistant unit in the present invention includes a base plate 80, a pressing support 60, and a pressing support 70, the cross beam 50 is assembled in the displacement housing 40, both ends of the cross beam 50 are placed on the pressing support 70, and the pressing support 60 presses both ends of the cross beam 50 in the displacement housing 40. The mounting end 21 of the movable comb plate 20 is connected with the middle part of the cross beam 50 through a backing plate 80.
The compression support 60 is arranged above two ends of the cross beam 50, the pressure bearing support 70 is arranged below two ends of the cross beam 50, the compression support 60 and the pressure bearing support 70 are elastic elements capable of deforming, when a vehicle rolls a comb plate of a telescopic device, impact force load is transmitted to the cross beam 50, and the cross beam 50 is transmitted to the elastic elements to compress the compression support 60 and the pressure bearing support 70, so that the vehicle has an energy absorption effect, and vibration resistance and noise reduction effects are achieved. Meanwhile, the middle part of the cross beam 50 is connected with the seam-crossing movable comb plate 20 through the base plate 80, the cross beam 50 is synchronously displaced with the beam body 90 by the deformation of the compression support 60 when the beam body 90 is in three-way displacement, and simultaneously the compression support 60 applies a rebound acting force to always keep synchronous displacement with the beam body 90.
In addition, the cross beam 50 has enough space in the displacement box 40 to adapt to the basic displacement of the bridge, and because the cross beam is rectangular in shape, when the bridge is displaced vertically, the cross seam movable comb plate is driven to tilt upwards, and the compression support 60 and the pressure bearing support 70 apply a rebound force to the cross beam 50, so that compared with the traditional multidirectional displacement comb plate type telescopic device, an anti-rebound system is saved. Preferably, the compression support 60 is mounted on the cross beam 50 by pre-compression, which is advantageous in achieving the anti-bouncing function described above, i.e. a certain compression force is pre-applied when the compression bearing 60 is mounted.
Preferably, the telescopic device of the present invention further comprises a beam stopper 41, and the beam stopper 41 is provided on the inner side surface of the displacement housing 40 to limit the longitudinal displacement of the beam 50. Further, as shown in fig. 1, a movable gap a is left between the displacement case 40 and the movable across-slit comb plate 20, so that a sufficient margin can be left for the multi-directional displacement of the movable across-slit comb plate 20, and the phenomenon of interference and collision with the displacement case 40 can be prevented.
At the time of installation, the installation end 21 of the movable across-seam comb plate 20 is preferably fixed together with the locknut 32 by using the lockbolt 33 passing through the movable across-seam comb plate 20, the backing plate 80 and the cross beam 50. Further preferably, a flexible rotary pad 100 for protecting the beam end is provided between the movable comb plate 20 and the other side member body 90.
The telescopic device provided by the invention is actually a unit type modularized telescopic device, all accessories can be processed and formed in a workshop and assembled in advance according to the requirements, and the construction site only needs to assemble the rest accessories, so that the telescopic device is simple in structure and convenient to install. If the vehicle is damaged due to long-term abnormal load, compared with the traditional telescopic device, the maintenance of a construction unit is very convenient, and the maintenance and the replacement of a core element are also convenient, so that the effects of quick construction and quick traffic can be achieved.
The method for installing the novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device is further described below.
According to an exemplary embodiment of the present invention, the installation method may include the steps of:
step A:
the fixed comb plate 10, the sliding plate assembly 30 and the anchor bars 31 are assembled in the reserved groove of the beam body 90 at one side and welded with the beam body embedded bars 91 for leveling.
And (B) step (B):
the displacement box body 40, the compression support 60, the bearing support 70 and the cross beam 50 which are assembled in advance are integrally assembled in a reserved groove of the other side beam body 90 and are welded and leveled with the beam body embedded ribs 91, the comb teeth ends 22 of the seam-spanning movable comb plate 20 are erected on the sliding plate assembly 30, and the comb teeth 23 of the comb teeth ends 22 in the seam-spanning movable comb plate 20 are correspondingly inserted with the comb teeth 11 of the fixed comb plate 10.
In the factory production, the welding strength of the displacement case 40 must meet the predetermined requirements, and the displacement case is assembled with the cross member 50, the pressing support 60, and the pressure bearing support 70 before shipment. And, the above-mentioned pre-groove is preferably cleaned and the groove area is roughened before installation.
Step C:
after the gap between teeth is adjusted, the lockbolt 33 and the locknut 32 are used for connecting the gap-spanning movable comb plate 20 with the middle parts of the backing plate 80 and the cross beam 90, and finally, the concrete is backfilled after the whole leveling.
Wherein, the interdental gap is adjusted according to the actual temperature in the field. And, the concrete strength that waits to pour reaches 80% and can open the traffic, and the movable fishback 20 of striding the seam can slide on slide subassembly 30 adaptation bridge stretches out and draws back.
In summary, the novel anti-vibration and noise-reduction multidirectional deflection comb plate type telescopic device is a unit type modularized telescopic device, has a simple structure and is convenient to install, not only can play a role in anti-vibration and noise reduction and improve travelling comfort, but also can adapt to multidirectional deformation of a bridge and increase the service life of the telescopic device, and compared with the traditional multidirectional deflection comb plate type telescopic device, an anti-rebound system is saved. If the vehicle is damaged due to long-term abnormal load, compared with the traditional telescopic device, the telescopic device is extremely convenient to maintain in a construction unit, and the maintenance and replacement of the core element are convenient, so that the effects of quick construction and quick traffic can be achieved.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (7)
1. The novel vibration-resistant noise-reducing multidirectional deflection comb plate type telescopic device is characterized by being spanned on an expansion joint arranged between two side beam bodies and comprising a fixed comb plate, a seam-spanning movable comb plate, a sliding plate assembly, a displacement box body, a vibration-resistant noise-reducing unit and a cross beam;
the fixed comb plate is fixed on a side beam body, and a sliding plate assembly is arranged below the fixed comb plate; the seam-crossing movable comb plate comprises a mounting end and a comb end, and is erected on the sliding plate assembly through the comb end and can slide on the sliding plate assembly; wherein, the comb teeth at the comb teeth end in the seam-crossing movable comb teeth plate are correspondingly inserted with the comb teeth of the fixed comb teeth plate;
the displacement box body is a concave hollow box body, the middle part of the displacement box body is provided with an upper opening, and the semi-rings of the displacement box body are arranged at the two sides and the bottom of the mounting end of the seam-crossing movable comb plate and are fixed on the other side beam body; the vibration and noise reduction unit comprises a base plate, a compression support and a pressure bearing support, the cross beam is assembled in the displacement box body, two ends of the cross beam are placed on the pressure bearing support, and the compression support compresses two ends of the cross beam in the displacement box body; the mounting end of the seam-crossing movable comb plate is connected with the middle part of the cross beam through a backing plate;
the telescopic device further comprises a cross beam stop block, wherein the cross beam stop block is arranged on the inner side surface of the displacement box body so as to limit the longitudinal displacement of the cross beam;
the compression bearing and the pressure bearing are elastic elements capable of deforming.
2. The novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to claim 1, wherein a movable gap is formed between the displacement box body and the seam-crossing movable comb plate.
3. The novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to claim 1, wherein a flexible rotating pad for protecting a beam end is arranged between the seam-crossing movable comb plate and the other side beam body.
4. The novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to claim 1, wherein the compression support is assembled on the cross beam in a pre-compression mode.
5. The novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to claim 1, wherein the fixed comb plate is fixed by using an anchor bar penetrating through the slide plate assembly and the fixed comb plate together with a locknut.
6. The novel vibration-resistant noise-reducing multidirectional displacement comb plate type telescopic device according to claim 1, wherein the mounting end of the seam-crossing movable comb plate is fixed by adopting a lockbolt penetrating the seam-crossing movable comb plate, a base plate and a cross beam together with a locknut.
7. A method of installing a novel vibration-resistant noise-reducing multidirectional-displacement comb plate type telescopic device as claimed in any one of claims 1 to 6, comprising the steps of:
A. assembling the fixed comb plate, the sliding plate assembly and the anchor bars in a reserved groove of a beam body at one side, and welding and leveling the fixed comb plate, the sliding plate assembly and the anchor bars with the beam body embedded bars;
B. the displacement box body, the compression support, the bearing support and the cross beam which are assembled in advance are integrally assembled in a reserved groove of the other side beam body and are welded and leveled with the pre-buried ribs of the beam body, the comb teeth ends of the seam-crossing movable comb plate are erected on the sliding plate assembly, and the comb teeth of the comb teeth ends in the seam-crossing movable comb plate are correspondingly inserted with the comb teeth of the fixed comb plate;
C. and after the gaps between teeth are adjusted, the gap-spanning movable comb plate is connected with the middle parts of the backing plate and the cross beam by using the lockbolts and locknuts, and finally, the concrete is backfilled after the whole leveling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710366262.3A CN106996079B (en) | 2017-05-23 | 2017-05-23 | Novel vibration-resistant noise-reducing multidirectional-displacement comb plate type telescopic device and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710366262.3A CN106996079B (en) | 2017-05-23 | 2017-05-23 | Novel vibration-resistant noise-reducing multidirectional-displacement comb plate type telescopic device and mounting method thereof |
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| CN106996079A CN106996079A (en) | 2017-08-01 |
| CN106996079B true CN106996079B (en) | 2023-06-13 |
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| CN112482207A (en) * | 2020-10-29 | 2021-03-12 | 山西省交通新技术发展有限公司 | Noise reduction and earthquake resistance method for bridge |
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| JP2013040468A (en) * | 2011-08-12 | 2013-02-28 | Nitta Ind Corp | Expansion joint for bridge |
| CN202899033U (en) * | 2012-11-22 | 2013-04-24 | 河北万泽橡塑科技有限公司 | Comb tooth extending device capable of changing positions in multiple directions |
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