阅读说明：本技术 弧形环保伸缩装置及其安装方法 (Arc-shaped environment-friendly telescopic device and installation method thereof ) 是由 龚宗明 田雪峰 程小丹 焦明倩 卢晶 徐雾阳 于 2020-12-18 设计创作，主要内容包括：本发明公开了弧形环保伸缩装置及其安装方法,属于桥梁工程技术领域,包括平行设置且与桥面齐平的弧形钢,在相邻的弧形钢之间设置带不锈钢滑轨的收集槽。弧形钢材质为高锰耐磨合金钢,自动形成抗防腐保护层,可做到免防腐；改变过去所有传统结构形式伸缩装置必需镀锌、涂装等防腐常规制造工艺。弧形钢截面采用曲线形构造,可增大与砼的接触面积,减小了车辆对伸缩装置的直接冲击,且不会出现应力集中点,延长了伸缩装置的结构寿命。通过采用带不锈钢滑轨的收集槽的超耐久独特设计,彻底颠覆了所有传统结构形式伸缩装置防水或排水的易损性设计结构,实现了无需中断交通的情况下,对收集槽的垃圾清理作业,节约了伸缩装置全寿命周期内管养成本。(The invention discloses an arc-shaped environment-friendly telescopic device and an installation method thereof, belonging to the technical field of bridge engineering. The arc steel is made of high-manganese wear-resistant alloy steel, an anti-corrosion protective layer is automatically formed, and corrosion can be avoided; the conventional anticorrosion manufacturing process that all the traditional structural telescopic devices need to be galvanized, coated and the like is changed. The arc-shaped steel cross section adopts a curve structure, so that the contact area with concrete can be increased, the direct impact of a vehicle on the telescopic device is reduced, a stress concentration point cannot occur, and the structural life of the telescopic device is prolonged. Through the super durable unique design of the collecting vat of taking the stainless steel slide rail, thoroughly overturned all traditional structural style telescoping devices waterproof or the vulnerable design structure of drainage, realized need not to break off under the condition of traffic, to the rubbish clearance operation of collecting vat, practiced thrift the cost of raising in the telescoping device life cycle.)

1. Arc environmental protection telescoping device, including boundary beam and centre sill, its characterized in that: the side beams and the middle beams are 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).

2. The arcuate environmental protection retractor device of claim 1 further comprising: the arc steel (1) and the collecting tank (2) are made of high-manganese wear-resistant alloy steel.

3. The arcuate environmental protection retractor device of claim 1 further comprising: the collecting grooves (2) are arranged between the adjacent arc-shaped steels (1) by adopting a drawer type structure; the collecting tank (2) is integrated or split; the bottom of the collecting tank (2) is connected with a drain pipe (11).

4. The arcuate environmental protection retractor device of claim 1 further comprising: when the collecting groove (2) is integrated, the collecting groove (2) extends along the transverse bridge direction and two ends of the collecting groove protruding out of the bridge body are tilted upwards.

5. The arcuate environmental protection retractor device of claim 1 further comprising: when the collecting grooves (2) are split, two collecting grooves (2) are arranged, and each collecting groove (2) is inserted from two sides of the transverse bridge and then butted; wherein, the one end of collecting vat (2) stick up, set up the inner wall at the other end of collecting vat (2), the inner wall of two collecting vats (2) sets up relatively and draws close at the middle part of bridge beam, sets up apron (16) above two inner walls, accomplishes the merger and the sealed of inner wall.

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: 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).

8. The arcuate environmental protection retractor device of claim 6 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.

9. 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.

10. The method for installing the arc-shaped environmental protection expansion and contraction device of any one of claims 3 to 9, wherein: the method comprises the following steps:

1) the arc steel (1) is of a prefabricated structure;

2) arc-shaped steels (1) are arranged at intervals on the road surface, the arc-shaped steels (1) are flush with the road surface, and collecting tanks (2) are arranged between adjacent panels (1) in a drawer type structure;

3) when the collecting groove (2) is integrated, the collecting groove (2) is pushed in from one end of the transverse bridge; when the collecting tanks (2) are split, two collecting tanks (2) are provided, each collecting tank (2) is inserted from two sides of a transverse bridge and then butted, one ends of the two collecting tanks (2) are tilted upwards, the other ends of the two collecting tanks (2) are provided with inner walls, the inner walls of the two collecting tanks (2) are oppositely arranged and are close to each other in the middle of a bridge cross beam, a cover plate (16) is supported by a supporting device above the two inner walls, the two close inner walls are reversely buckled by the cover plate (16), then the supporting device is withdrawn, and the inner walls are merged and sealed;

4) the bottoms of the collecting tanks (2) are connected with drain pipes (11).

Technical Field

The invention belongs to the technical field of telescopic devices, and particularly relates to an arc-shaped environment-friendly telescopic device and an installation method thereof.

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:

firstly, the telescopic body of the telescopic device is made of carbon steel, shot blasting and paint spraying are required in the prefabrication production stage, the process not only harms the health of operating personnel, but also influences the environment, and the telescopic device belongs to one of dangerous waste sources;

secondly, a large amount of time is consumed for shot blasting and paint spraying until a paint film is completely dried, so that the cost is increased, and the production efficiency is reduced;

thirdly, as the module type telescopic device needs to be additionally provided with the water-tight rubber strips in the traditional structure, the rubber strips are damaged and rotten due to self aging and physical and chemical corrosion, are adhered to the inner wall of the cavity, cannot be cleaned, and are difficult to maintain and replace;

fourthly, the structural shape of traditional telescoping device shaped steel is the linear type and arranges, the linear shape 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.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide an arc-shaped environment-friendly telescopic device which is easy to maintain and more environment-friendly; another object of the present invention is to provide a method of mounting the same.

The technical scheme is as follows: in order to achieve the purpose, the invention provides the following technical scheme:

arc environmental protection telescoping device, including boundary beam and intermediate beam, boundary beam and intermediate beam be the arc steel, the arc steel flush with the road surface and all set up the collecting vat between adjacent arc steel.

Furthermore, the arc steel and the collecting tank are made of high-manganese wear-resistant alloy steel.

Further, the collecting groove is arranged between adjacent arc-shaped steels in a drawer type structure; the collecting tank is integrated or split. 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 groove is integrated, the collecting groove extends along the transverse bridge direction and two ends of the collecting groove, which protrude out of the bridge body, are tilted upwards.

Furthermore, when the collecting tanks are split, two collecting tanks are provided, and each collecting tank is inserted from two sides of the transverse bridge and then butted with the transverse bridge; wherein, 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(T_max-T_a)L+f_min

wherein B is a mounting clearance value, mm; alpha is the linear expansion coefficient of the concrete; t is_maxDesigning the highest installation temperature, DEG C; t is_aActual installation temperature, deg.C; l is the length of the single span beam; f. of_minThe minimum gap at the beam ends.

Further, the installation method of the arc-shaped environment-friendly telescopic device comprises the following steps:

1) the arc steel is a prefabricated structure;

2) arc-shaped steels are arranged at intervals on the road surface, the arc-shaped steels are flush with the road surface, and collecting tanks are arranged between adjacent panels in a drawer type structure;

3) when the collecting groove is integrated, the collecting groove is pushed in from one end of the transverse bridge; when the collecting tanks are split, two collecting tanks are provided, each collecting tank is inserted from two sides of the cross bridge and then butted, one ends of the two collecting tanks are tilted upwards, the other ends of the two collecting tanks are provided with inner walls, the inner walls of the two collecting tanks are oppositely arranged and are close to each other in the middle of the cross beam of the bridge, a cover plate is supported above the two inner walls by a supporting device, the cover plate reversely buckles the two close inner walls, then the supporting device is withdrawn, and the combination and sealing of the inner walls are completed;

4) the bottoms of the collecting tanks are connected with drain pipes.

Has the advantages that: compared with the prior art, the arc-shaped environment-friendly telescopic device comprises the boundary beams and the middle beams, wherein the boundary beams and the middle beams are all arc-shaped steel, the arc-shaped steel is flush with the road surface, and collecting grooves are formed between every two adjacent arc-shaped 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. The installation method is simple, is suitable for installing the collecting tank with the drawer type structure, and has wide application.

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 invention will be further described with reference to the following 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 installation gap value B of the arc-shaped environmental protection expansion device of the invention changes with the change of the installation temperature, the optimal installation gap value B of different expansion amounts also changes, the installation temperature of the expansion joint is generally between 0 ℃ and +40 ℃, the installation gap value B is obtained by calculating according to the expansion amount of 80mm as a modulus as a reference, the error of the installation gap value B is ± 2mm, and the specific formula is as follows:

B＝α(T_max-T_a)L+f_minwherein

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)；

T_maxThe highest mounting temperature (DEG C) is designed, and the value is generally 40 ℃;

T_athe actual installation temperature (DEG C) is generally above 0 ℃;

l is the length of the single span beam, and is 80 m;

f_minthe 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 installation method of the arc-shaped environment-friendly telescopic device comprises the following steps:

1) the arc steel 1 is of a prefabricated structure;

2) arc-shaped steels 1 are arranged at intervals on the road surface, the arc-shaped steels 1 are flush with the road surface, and collecting tanks 2 are arranged between adjacent panels 1 in a drawer type structure;

3) when the collecting groove 2 is integrated, the collecting groove 2 is pushed in from one end of the transverse bridge; when the collecting tanks 2 are split, two collecting tanks 2 are provided, each collecting tank 2 is inserted from two sides of a cross bridge and then is in butt joint, one ends of the two collecting tanks 2 are tilted upwards, inner walls are arranged at the other ends of the two collecting tanks 2, the inner walls of the two collecting tanks 2 are oppositely arranged and are close to each other in the middle of a cross beam of the bridge, a cover plate 16 is supported above the two inner walls by a supporting device, the two close inner walls are reversely buckled by the cover plate 16, then the supporting device is withdrawn, and the inner walls are merged and sealed;

4) the bottom of the collecting groove 2 is connected with a drain pipe 11.

According to the arc-shaped environment-friendly telescopic device, the telescopic body section steel of the telescopic device is made of high-manganese wear-resistant alloy steel materials, the telescopic device has outstanding advantages compared with traditional carbon steel, from the economic perspective, under the current developed traffic industry, the consumption of the telescopic device is more than three million meters per year, the shot blasting and paint spraying processes of the traditional carbon steel are calculated according to 100 yuan/meter, the coating-free high-manganese wear-resistant alloy steel is adopted, the cost can be saved by more than three hundred million billions, and the economic benefit is greatly improved; 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 perspective of social effect, the damage of shot blasting and paint spraying to the bodies of operators is huge, environmental damage is caused, and the normal living and daily life of surrounding residents are influenced.

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 embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.