CN214423148U - Arc-shaped environment-friendly telescopic device - Google Patents
Arc-shaped environment-friendly telescopic device Download PDFInfo
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- CN214423148U CN214423148U CN202023073079.0U CN202023073079U CN214423148U CN 214423148 U CN214423148 U CN 214423148U CN 202023073079 U CN202023073079 U CN 202023073079U CN 214423148 U CN214423148 U CN 214423148U
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Abstract
The utility model discloses an arc-shaped environment-friendly expansion device, which belongs to the technical field of bridge engineering, wherein the arc-shaped environment-friendly expansion device comprises an edge beam and a middle beam which are arc-shaped steels, the arc-shaped steels are flush with the road surface, and collecting grooves are arranged between the adjacent arc-shaped steels; the collecting tank is integrated or split; the collecting groove extends along the transverse bridge direction and two ends of the collecting groove protruding out of the bridge body are tilted upwards. The utility model discloses an arc environmental protection telescoping device, including boundary beam and centre sill, boundary beam and centre sill are the arc steel, and the arc steel flushes with the road surface and all sets up the collecting vat between adjacent arc steel. The defect that a traditional rubber sealing belt is difficult to replace and occupies a sealing channel is overcome, cleaning and replacing operations of the sealing groove can be realized without interrupting traffic, and the maintenance cost is saved while the traffic order is ensured.
Description
Technical Field
The utility model belongs to the technical field of the telescoping device, concretely relates to arc environmental protection telescoping device.
Background
The existing telescopic devices which are put into operation are various, mainly comprising a module type telescopic device and a comb plate telescopic device, and the two types of telescopic devices mainly have the following defects in the aspects of structure and performance:
the modulus type telescopic device is added with a dense water rubber strip in the traditional structure, and the rubber strip is damaged and rotten due to self aging and physical and chemical corrosion, is adhered to the inner wall of a cavity, cannot be cleaned and is difficult to maintain and replace;
the structural shape of traditional telescoping device shaped steel is the linear type and arranges, the linear form connected mode of boundary beam shaped steel and concrete for hookup location car load impact force is great, and concrete fracture, damaged phenomenon easily appear in the junction, and the straight line shape at shaped steel top sets up moreover, makes the wheel roll pass through, can appear slight jump the car phenomenon.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: an object of the utility model is to provide an arc environmental protection telescoping device, easy to maintain and environmental protection more.
The technical scheme is as follows: in order to achieve the above object, the utility model provides a following technical scheme:
the side beams and the middle beam are arc-shaped steels which are flush with the road surface, and collecting tanks are arranged between the adjacent arc-shaped steels; the collecting tank is integrated or split; the collecting groove extends along the transverse bridge direction, and two ends of the collecting groove protruding out of the bridge body are tilted upwards.
Further, the collecting groove is arranged between adjacent arc-shaped steels in a drawer type structure; the collecting groove is communicated with the area above the road surface. The arc-shaped steel is of an I-shaped structure, the waist parts of the arc-shaped steel are symmetrical to form two inward-concave arc-shaped structures, and the top and the bottom of the arc-shaped steel are of rectangular-like structures.
Further, when the collecting tank is integrated, the collecting tank is a U-shaped tank body.
Furthermore, when the collecting grooves are split, the number of the collecting grooves is two, and each collecting groove is inserted from two sides of the transverse bridge and then is in butt joint.
Further, the one end perk that makes progress of collecting vat, set up the inner wall at the other end of collecting vat, the inner wall of two collecting vats sets up relatively and draws close at the middle part of bridge beam, sets up the apron above two inner walls, the apron is with two inner wall back-offs that draw close, accomplishes the merger and the sealed of inner wall. The cover plate is of a groove-shaped structure, such as a V-shaped structure.
Further, an outer rail is arranged on the arc-shaped steel, an inner rail is arranged at the connecting end of the collecting tank, and after the arc-shaped steel is matched with the inner rail, the inner rail is drawn out of and pushed into the outer rail.
Further, a drain pipe is connected to the bottom of the collecting tank.
Furthermore, a displacement box is arranged at the equal-height position of the edge beam, a lifting hook is arranged under the middle beam, and the displacement boxes are connected by a supporting beam.
Furthermore, the supporting beam is arranged between the upper top ring and the lower top ring of the lifting hook, and the upper top surface and the lower top surface of the supporting beam are respectively connected with the rubber elastic element, so that the rubber elastic element, the supporting beam and the lifting hook are in a clamping state.
Further, the structure of the arc-shaped steel is in a curve shape, the width of the top of the section of the curve shape is b, the height of the section of the curve shape is h, the width of the abdomen of the section of the curve shape is k, and b/h is between 1.45 and 1.55, and k/h is between 0.25 and 0.3.
And calculating the value B of the mounting gap between adjacent arc steels as follows:
B＝α(Tmax-Ta)L+fmin
wherein B is a mounting clearance value, mm; alpha is the linear expansion coefficient of the concrete; t ismaxDesigning the highest installation temperature, DEG C; t isaActual installation temperature, deg.C; l is the length of the single span beam; f. ofminThe minimum gap at the beam ends.
Has the advantages that: compared with the prior art, the utility model discloses an arc environmental protection telescoping device, including boundary beam and centre sill, boundary beam and centre sill are the arc steel, and the arc steel flushes with the road surface and all sets up the collecting vat between adjacent arc steel. The defect that a traditional rubber sealing belt is difficult to replace and occupies a sealing channel is overcome, cleaning and replacing operations of the sealing groove can be realized without interrupting traffic, and the maintenance cost is saved while the traffic order is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of an arc-shaped environmental protection expansion device with a single slit;
FIG. 2 is a schematic sectional view of an arc-shaped environmental protection expansion device;
FIG. 3 is a cross-sectional view of a conventional modular expansion device;
FIG. 4 is a schematic cross-sectional view of a collection trough;
FIG. 5 is a first schematic view of a transverse bridge of a collecting tank;
FIG. 6 is a schematic view of a collecting tank in a transverse direction;
FIG. 7 is a schematic cross-sectional view of an arc-shaped steel;
FIG. 8 is a schematic view of the installation gap B between the arc steels;
FIG. 9 is a schematic view of the measurement principle of the mounting clearance value B;
reference numerals: 1-arc steel, 2-collecting tank, 3-rubber elastic element, 4-supporting beam, 5-displacement tank, 6-lifting hook, 7-inner rail, 8-outer rail, 9-anchoring steel plate, 10-anchoring steel bar, 11-water drain pipe, 12-side beam steel, 13-middle beam steel, 14-watertight rubber strip, 15-concrete and 16-cover plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Fig. 3 is a schematic cross-sectional view of a conventional modular expansion device, which mainly comprises an edge beam profile steel 12, a middle beam profile steel 13, a watertight rubber strip 14, a supporting beam 4 and a displacement box 5.
As shown in fig. 1-2, the arc-shaped environment-friendly telescopic device comprises arc-shaped steel 1, a collecting tank 2, a rubber elastic element 3, a supporting beam 4, a displacement tank 5, an anchoring steel plate 9 and an anchoring steel bar 10, wherein the arc-shaped steel is made of high-manganese wear-resistant alloy steel.
The side beams and the middle beam of the telescopic device are arc-shaped steels 1 and arranged at the same height with the road surface, collecting tanks 2 are arranged at the equal height positions between every two arc-shaped steels 1, displacement tanks 5 are arranged at the equal height positions of the sides of the two side beams, lifting hooks 6 are arranged under the middle beam, the displacement tanks 5 are connected by supporting beams 4, the supporting beams 4 are arranged between an upper top ring and a lower top ring of the lifting hooks 6 and are connected by rubber elastic elements 3, so that the rubber elastic elements 3, the supporting beams 4 and the lifting hooks 6 are in a clamping state.
As shown in fig. 4, the collecting troughs 2 are connected with the boundary beams and the middle beams by drawer-type slide rails, the drawer-type slide rails are arranged along the boundary beams and the middle beams at equal heights, wherein the outer rails 8 are respectively connected with the boundary beams and the middle beams by arc-shaped steel 1, and the collecting troughs 2 are connected with the inner rails 7 into a whole and are symmetrically arranged along the direction of the outer rails 8.
The two ends of the collecting groove 2 protruding out of the bridge body are tilted upwards. The collecting groove 2 is arranged between the adjacent arc-shaped steels 1 by adopting a drawer type structure.
Set up outer track 8 on arc steel 1, set up inner rail 7 at the link of collecting vat 2, the cooperation back, inner rail 7 is taken out and is pushed on outer track 8. A drain pipe 11 is connected to the bottom of the collection tank 2.
The drain pipe 11 is arranged at the lowest side of the transverse bridge-shaped transverse slope and is in a cylindrical shape, a cylinder hole is formed in the bottom of the collecting tank 2, the top opening of the drain pipe 11 is connected with the cylinder hole in the bottom of the collecting tank 2, and the connecting mode is not limited, so that the collecting tank 2 and the collecting tank 11 are connected into a whole. The function of 11 is to discharge the impurities and water collected by the 2-stage filter.
The inner rail 7 and the outer rail 8 may be connected by a fixed connection and a drawer-type sliding connection, wherein the fixed connection may be any fixed connection such as a welded connection, a bolt connection, and a hinge connection, and the shapes of the inner rail 7 and the outer rail 8 are not limited, and include the above shapes and are not limited to the designs of other shapes.
As shown in fig. 5, the collecting groove 2 is of an integral structure, the collecting groove 2 is arranged below the mounting gap 2, and the collecting groove 2 is arranged between adjacent vertical plates 3 and covers the area between the vertical plates 3. The main body of the collecting tank 2 is a straight cylinder type and extends along the transverse bridge direction, and two ends of the collecting tank protruding out of the bridge body are tilted upwards. The collecting tank 2 is a drawer-type collecting tank.
As shown in fig. 6, the collecting tank 2 is of a split structure; the collecting grooves 2 are two and are oppositely arranged. The two collecting troughs 2 are each pushed in from the outer rails 8 at both ends of the bridge girder. At this moment, the one end perk that makes progress of collecting vat 2 sets up the inner wall at the other end of collecting vat 2, and the inner wall of two collecting vats 2 sets up relatively and draws close at the middle part of bridge beam, props up apron 16 with the device of propping up above two inner walls, and apron 16 is with the inner wall back-off that two draw close together, then withdraws to prop up the device, accomplishes the merger and the sealed of inner wall. One end of the collection trough 2 is tilted upwards to prevent rain water from overflowing and is covered by a cover plate 16 to ensure that upper rain water and sundries cannot leak into the lower structure through gaps at joints. The cover plate 16 is of a channel configuration, such as a V-configuration.
As shown in FIG. 7, the structure of the arc steel 1 is arranged in a curve shape, the width of the top of the section is b, the height of the section is h, the width of the abdomen of the section is k, and when b/h is between 1.45 and 1.55 and k/h is between 0.25 and 0.3, the yield strength and the tensile strength of the section of the arc steel 1 reach the optimal values of the bearing capacity through simulation calculation.
The arc steel 1 is of an I-shaped structure, two inward-concave arc structures with symmetrical waist (section abdomen) positions are arranged, and the top and the bottom of the arc steel are of rectangular-like structures.
The belly of the section of the arc steel 1 is in curved line arrangement, so that the contact area with concrete can be increased, the impact force of automobile load is reduced, the stress of the contact surface can be uniform due to the curved line structure, stress notches cannot occur, and the structural integrity and the safety of the arc steel 1 are ensured.
The top (in the width b direction) of cross-section is the arc and arranges, can laminate the arc shape of wheel like this well, when slowing down the direct impact of wheel, has still increased driving comfort level.
As shown in fig. 8-9, the utility model discloses arc environmental protection telescoping device installation clearance value B changes along with installation temperature's change, and the best installation clearance value B of different flexible volume also differs, and expansion joint installation temperature generally is at 0 ℃ - +40 ℃, is a modulus as the reference according to flexible volume 80mm, and installation clearance value B obtains through calculating, and installation clearance value B error is at 2mm, and concrete formula is:
B＝α(Tmax-Ta)L+fminwherein
B is the width (mm) of the mounting gap;
alpha is the linear expansion coefficient of concrete (value is 1.0 multiplied by 10)-5)；
TmaxThe highest mounting temperature (DEG C) is designed, and the value is generally 40 ℃;
Tathe actual installation temperature (DEG C) is generally above 0 ℃;
l is the length of the single span beam, and is 80 m;
fminthe minimum clearance between two beam ends of a main beam in a bridge structure is generally 20 mm. The widths of the installation gaps of the expansion devices with other expansion amounts are correspondingly calculated and set according to the installation temperature and the span length of the corresponding beam.
The utility model discloses an arc environmental protection telescoping device, telescoping device telescoping body shaped steel adopt high manganese wear-resisting alloy steel material, and the advantage is outstanding than traditional carbon steel, from the economic perspective, under the traffic industry so developed at present, annual telescoping device quantity is more than three million meters, and traditional carbon steel's ball throwing and the process of spraying paint calculate according to 100 yuan/meter, adopt the coating-free high manganese wear-resisting alloy steel can practice thrift the cost more than three hundred million, and economic benefits improves greatly; from the perspective of production efficiency, shot blasting and paint spraying which are time-consuming and labor-consuming are omitted in the whole process, and the yield of the expansion device per day can be increased by 1.5 times compared with the conventional yield; from the social effect angle, throw the ball and spray paint and be huge for operation personnel's health injury, caused the environmental destruction moreover, influence the normal life daily life of peripheral resident, this utility model need not to throw the ball and spray paint the process, fine response the current theme of forbidding "danger useless" emission, the social effect improves greatly.
In the aspect of performance, compared with carbon steel, the high-manganese wear-resistant alloy steel material adopting the structural form has the characteristics of better toughness, ductility, corrosion resistance, high temperature resistance, fatigue resistance and the like, and the weather resistance is 2-8 times that of common carbon steel; the tensile strength of the structure is above 900MPa, which is improved by about 1/3 compared with the upper limit of the universal standard strength of the expansion joint of 630MPa, and the bending modulus is greatly improved compared with the common carbon steel with the same section size.
Take the design of the collecting vat of stainless steel slide rail, fine solved traditional rubber sealing strip difficult change, account for the drawback of sealing the way, can realize need not to break under the condition of traffic, still practiced thrift the maintenance cost when the traffic order has been guaranteed to clearance, the change operation of seal groove.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (10)
1. Arc environmental protection telescoping device, including boundary beam and centre sill, its characterized in that: the side beams and the middle beams are both arc-shaped steels (1), the arc-shaped steels (1) are flush with the road surface, and collecting tanks (2) are arranged between the adjacent arc-shaped steels (1); the collecting tank (2) is integrated or split; the collecting groove (2) extends along the transverse bridge direction, and two ends of the collecting groove, which protrude out of the bridge body, are tilted upwards.
2. The arcuate environmental protection retractor device of claim 1 further comprising: the collecting groove (2) is arranged between the adjacent arc-shaped steels (1) by adopting a drawer type structure.
3. The arcuate environmental protection retractor device of claim 1 further comprising: when the collecting tank (2) is integrated, the collecting tank (2) is a U-shaped tank body.
4. The arcuate environmental protection retractor device of claim 1 further comprising: when the collecting grooves (2) are split, the number of the collecting grooves (2) is two, and each collecting groove (2) is inserted into the two sides of the transverse bridge and then butted with the corresponding transverse bridge.
5. The arcuate environmental protection retractor device of claim 4 further comprising: one end of the collecting tank (2) is upwards tilted, the other end of the collecting tank (2) is provided with an inner wall, the inner walls of the two collecting tanks (2) are oppositely arranged and are close to each other in the middle of the bridge cross beam, and a cover plate (16) is arranged above the two inner walls to complete the combination and sealing of the inner walls.
6. The arcuate environmental protection retractor device of claim 1 further comprising: the arc steel (1) is provided with an outer rail (8), the connecting end of the collecting tank (2) is provided with an inner rail (7), and after the arc steel is matched with the inner rail, the inner rail (7) is drawn out of and pushed into the outer rail (8).
7. The arcuate environmental protection retractor device of claim 1 further comprising: the bottom of the collecting tank (2) is connected with a drain pipe (11).
8. The arcuate environmental protection retractor device of claim 1 further comprising: and a displacement box (5) is arranged at the equal-height position of the edge beam, a lifting hook (6) is arranged under the middle beam, and the displacement boxes (5) are connected by a supporting beam (4).
9. The arcuate environmental protection retractor device of claim 8 further comprising: the supporting beam (4) is arranged between the upper top ring and the lower top ring of the lifting hook (6), and the upper top surface and the lower top surface of the supporting beam (4) are respectively connected with the rubber elastic element (3), so that the rubber elastic element (3), the supporting beam (4) and the lifting hook (6) are in a clamping state.
10. The arcuate environmental protection retractor device of claim 1 further comprising: the structure of the arc-shaped steel (1) is in a curve shape, the width of the top of the section of the curve shape is b, the height of the section of the curve shape is h, the width of the abdomen of the section of the curve shape is k, and b/h is between 1.45 and 1.55, and k/h is between 0.25 and 0.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023073079.0U CN214423148U (en) | 2020-12-18 | 2020-12-18 | Arc-shaped environment-friendly telescopic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023073079.0U CN214423148U (en) | 2020-12-18 | 2020-12-18 | Arc-shaped environment-friendly telescopic device |
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| Publication Number | Publication Date |
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| CN214423148U true CN214423148U (en) | 2021-10-19 |
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| CN202023073079.0U Active CN214423148U (en) | 2020-12-18 | 2020-12-18 | Arc-shaped environment-friendly telescopic device |
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