CN209941482U - Self-stabilizing bridge expansion device - Google Patents
Self-stabilizing bridge expansion device Download PDFInfo
- Publication number
- CN209941482U CN209941482U CN201920110466.5U CN201920110466U CN209941482U CN 209941482 U CN209941482 U CN 209941482U CN 201920110466 U CN201920110466 U CN 201920110466U CN 209941482 U CN209941482 U CN 209941482U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- expansion device
- bridge expansion
- bridge
- vertical pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of bridge engineering parts, in particular to a self-stabilizing bridge expansion device, which consists of symmetrically arranged bridge expansion device monomers, wherein rubber strips for bridge expansion are arranged between the symmetrically arranged bridge expansion device monomers; bridge telescoping device monomer includes the box, sets up at the inside first sleeve of a plurality of box and sets up the perpendicular round pin in first sleeve, first telescopic inboard be provided with erect round pin assorted internal thread, the upper portion and the first sleeve of perpendicular round pin pass through threaded connection, the vertical upper surface and the lower surface that run through the box of first sleeve. The device has the advantages of standardized quality, long service life, easy installation, short installation period, no maintenance, convenient replacement and the like, and has wide market application prospect.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering part, concretely relates to from firm bridge telescoping device.
Background
The bridge expansion device in the prior art, as shown in fig. 1, comprises a steel beam (40), wherein an annular steel bar (41) is arranged on the steel beam (40), and a plurality of embedded steel bars (42) are embedded in a bridge base body. In the use, the welding position is required to be accurately controlled firstly, the annular steel bars (41) of the bridge expansion device are welded with the embedded anchoring steel bars (42) one by one, the formwork is erected, then high-strength concrete is poured, the maintenance is carried out for at least 14 days, the traffic is sealed during the maintenance, and after the maintenance is over, vehicles can be allowed to pass, so that the installation of the bridge expansion device is completed. The existing bridge expansion device has the following problems in the use process: (1) the welding positions of the annular steel bars and the embedded steel bars need to be accurately controlled, and the quality is difficult to standardize and unify; (2) the welding position of the embedded anchoring rib and the annular steel bar is a stress weak point, and the stress after rolling by a vehicle is very easy to damage at the position, so that the bridge expansion device cannot be used continuously; (3) the concrete poured on the bridge expansion device is difficult to control the construction quality due to small pouring volume, and is easy to crack and damaged due to insufficient strength; (4) the maintenance time is long, the bridge expansion device needs to be replaced to close traffic, so the maintenance period is very short, the short time cannot guarantee the concrete maintenance time, the maintenance time is insufficient, the strength is insufficient, the traffic is opened, and the bridge expansion device is easy to damage after being opened due to the insufficient strength, so a vicious circle is formed; (5) the existing bridge expansion device is difficult to replace, the traffic is required to be sealed, the old expansion joint is removed, and a new expansion joint is replaced, so that the time and labor are wasted, and the existing bridge expansion device is unsafe. Therefore, it is very important to develop a bridge expansion device with standardized quality, difficult damage, easy installation and short construction period.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from steady bridge telescoping device, the quality of solving among the prior art bridge telescoping device is difficult to standardize, rolls little fragile, the health preserving time of stress point, change the degree of difficulty big, difficult installation, the long problem of construction period.
The utility model discloses an implementation process as follows:
a self-stabilizing bridge expansion device is composed of symmetrically arranged bridge expansion device single bodies, wherein rubber strips for bridge expansion are arranged between the symmetrically arranged bridge expansion device single bodies; the bridge expansion device single body comprises a box body, a plurality of first sleeves arranged in the box body and vertical pins arranged in the first sleeves, wherein the first sleeves vertically penetrate through the upper surface and the lower surface of the box body, the vertical pins are inserted in the first sleeves, and the diameter of each first sleeve is larger than that of each vertical pin; wherein, the vertical pin is a smooth surface vertical pin or a threaded surface vertical pin.
Further, when the vertical pin is a vertical pin with a threaded surface, an internal thread matched with the vertical pin is arranged on the inner side of the first sleeve, and the upper part of the vertical pin is connected with the first sleeve through a thread.
Furthermore, the bridge expansion device unit also comprises a second sleeve, the inner side of the second sleeve is provided with an internal thread matched with the vertical pin, and the lower part of the vertical pin is connected with the second sleeve through a thread; the top of the second sleeve is flush with the upper surface of the bridge body; the vertical pin is made of steel, and the first sleeve and the second sleeve are both steel sleeves; the rubber strip is made of rubber; the length ratio of the first sleeve to the second sleeve is 1: 1-2: 1.
Furthermore, the bridge expansion device single body also comprises a second sleeve, and the lower part of the vertical pin is inserted into the second sleeve; the top of the second sleeve is flush with the upper surface of the bridge body; the vertical pin is made of steel, and the first sleeve and the second sleeve are both steel sleeves; the rubber strip is made of rubber; the length ratio of the first sleeve to the second sleeve is 1: 1-2: 1.
Furthermore, the both sides of first sleeve are provided with a plurality of crossing reinforcing bar and annular reinforcing bar, a plurality of crossing reinforcing bar are fixed in annular reinforcing bar.
Furthermore, the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are provided with deformed steel structures for installing adhesive tapes, and two sides of the adhesive tapes are inserted and embedded in the deformed steel structures; the section of the special-shaped steel structure is C-shaped.
Further, the box body is a shell with a cavity inside and surrounded by rectangular steel plates, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body is formed by welding rectangular steel plates; the bottom of the first sleeve is flush with the bottom surface of the box body; the vertical pin is a cylindrical vertical pin and is made of steel; the first sleeve is a steel sleeve.
Further, rubber strips arranged between the symmetrically arranged bridge expansion device monomers are replaced by comb plates, each comb plate consists of a seam-crossing comb plate body and a seam-crossing comb tooth part, each seam-crossing comb plate consists of a seam-crossing comb plate body and a seam-crossing comb tooth part, each fixed comb plate consists of a fixed comb plate body and a fixed comb tooth part, and the seam-crossing comb tooth parts and the fixed comb tooth parts are mutually crossed and have gaps; the upper surface of a comb plate consisting of the seam crossing comb plate and the fixed comb plate is a plane, the seam crossing comb tooth part is parallel to the fixed comb tooth part, the seam crossing comb plate is of an integrally formed structure, and the fixed comb plate is of an integrally formed structure; the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are fixedly connected with the seam-crossing comb plate body and the fixed comb plate body respectively.
The installation method of the self-stabilizing bridge expansion device comprises the following steps:
(1) processing symmetrically arranged bridge expansion device monomers according to a drawing, and pouring concrete or steel fiber concrete into the box body for solidification and forming;
(2) laying a transition layer on the upper surface of the bridge body, so that the contact surface of the bridge expansion device monomer and the transition layer meets the elevation and the gradient of the design requirement, and adjusting the thickness of the transition layer according to the height of the bridge expansion device monomer, the height of the bridge body and the height of the asphalt concrete bridge deck pavement;
(3) placing the symmetrically arranged bridge expansion device single bodies on the transition layer, punching the transition layer and the bridge beam body below the first sleeve according to the position of the first sleeve, placing or screwing a vertical pin into the first sleeve of the bridge expansion device single body to enable the top of the vertical pin to be flush with the upper surface of the bridge expansion device single body, and injecting glue into a gap between the vertical pin and the first sleeve;
(4) and (5) installing an adhesive tape or welding a comb plate to complete the installation of the self-stabilizing bridge expansion device.
Furthermore, in the step, a groove is formed in the bridge body, and a second sleeve can be placed in the groove; or pre-embedding the second sleeve on the bridge body in the step (2); and (3) the transition layer is any one of rubber, concrete or epoxy resin.
The transition layer has three functions: firstly, leveling the upper surface of a bridge body to ensure that the contact surface of the upper surface of the bridge body and a bridge expansion device meets the elevation and the gradient of the design requirement; secondly, supporting the bridge expansion device to enable the upper surface of the bridge expansion device to be flush with the asphalt concrete bridge deck paving surface; thirdly, the bridge expansion device and the bridge body are bonded into a whole under the bonding action.
The utility model discloses an actively the effect:
(1) bridge telescoping device comprises mated bridge telescoping device monomer, the intussuseption of bridge telescoping device free box structure intussuseption is filled with the concrete, realizes stabilizing certainly of the vertical direction of bridge telescoping device through the action of gravity, through setting up erecting round pin and first sleeve in bridge telescoping device free box, fixes bridge telescoping device monomer and bridge roof beam body, has realized the horizontal direction from steady, in addition, the utility model discloses on-the-spot direct concatenation installation, construction speed is fast.
(2) The utility model discloses the telescopic purpose that sets up of well second can effectively slow down the wearing and tearing that the groove upper limb of vertical pin pair bridge roof beam body went up to open.
(3) Bridge telescoping device's high quality: industrial production, standardized construction and stable and reliable quality.
(4) Bridge telescoping device's longe-lived: the design of the whole life cycle, the concrete is not exposed, and the service life is long; the welding department is the weak point of atress among the prior art, bridge telescoping device turns into box face atress with the weak point of welding atress, and is durable more lastingly.
(5) Bridge telescoping device easily installs: the welding in the construction site is not needed, and the concrete is not poured in the construction site.
(6) Bridge telescoping device exempts from to maintain: after the construction is finished, the maintenance is not needed, the traffic is opened immediately, and the construction period is short.
(7) Bridge telescoping device changes conveniently: the design of individual formula can dismantle alone, changes fast.
Drawings
FIG. 1 is a schematic structural diagram of a bridge expansion device in the prior art;
FIG. 2 is a schematic structural view of the self-stabilized bridge expansion and contraction device according to embodiment 1;
FIG. 3 is a schematic structural view of the self-stabilized bridge expansion and contraction device according to embodiment 2;
FIG. 4 is a diagram illustrating a state of use of the self-stabilizing bridge girder extension and contraction device according to embodiment 2;
FIG. 5 is a schematic structural view of a vertical pin according to embodiment 2;
FIG. 6 is another schematic structural view of the vertical pin according to embodiment 2;
FIG. 7 is a schematic structural diagram of a bridge expansion device according to embodiment 4;
FIG. 8 is a diagram illustrating a state of use of the bridge expansion device according to embodiment 4;
fig. 9 is a schematic structural view of the comb plate according to embodiment 4;
in the figure, 1 bridge girder body, 2 bituminous concrete bridge deck pavement, 10 boxes, 100 deformed steel structures, 11 adhesive tapes, 110 fishback, 111 seam-spanning fishback, 112 fixed fishback, 12 first sleeves, 13 second sleeves, 14 vertical pins, 17 traverse reinforcing steel bars, 18 annular reinforcing steel bars, 19 transition layers, 40 steel beams, 41 annular reinforcing steel bars and 42 embedded steel bars.
Detailed Description
The present invention will be further described with reference to the following examples.
In order to solve the problem that the installation period of bridge telescoping device among the prior art is long, maintenance cycle is long, the change maintenance degree of difficulty is big, the utility model provides a from steady bridge telescoping device.
Example 1
The self-stabilizing bridge expansion device in this embodiment is shown in fig. 2, and is composed of symmetrically arranged bridge expansion device monomers, rubber strips 11 for bridge expansion are arranged between the symmetrically arranged bridge expansion device monomers, an deformed steel structure 100 for mounting the rubber strips 11 is arranged on the upper portion of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers, and two sides of the rubber strips 11 are inserted and embedded in the deformed steel structure 100; the section of the deformed steel structure 100 is a C-shaped section; bridge telescoping device monomer includes box 10, sets up at the inside first sleeve 12 of a plurality of box 10 and sets up the vertical pin 14 in first sleeve 12, the inboard of first sleeve 12 be provided with the 14 assorted internal threads of vertical pin, the upper portion and the first sleeve 12 of vertical pin 14 pass through threaded connection, the vertical upper surface and the lower surface that run through box 10 of first sleeve 12. The two sides of the first sleeve 12 are provided with a plurality of transverse reinforcing steel bars 17 and annular reinforcing steel bars 18, and the plurality of transverse reinforcing steel bars 17 are fixed in the annular reinforcing steel bars 18. The box body 10 is a shell which is surrounded by rectangular steel plates and has a cavity inside, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body 10 is formed by welding rectangular steel plates; the bottom of the first sleeve 12 is flush with the bottom surface of the box body 10; the vertical pin 14 is a cylindrical vertical pin, and the vertical pin 14 is made of steel; the first sleeve 12 is a steel sleeve, and the rubber strip 11 is made of rubber. The vertical pin is a threaded surface vertical pin.
Example 2
The self-stabilizing bridge expansion device in this embodiment is shown in fig. 3, and is composed of symmetrically arranged bridge expansion device monomers, rubber strips 11 for bridge expansion are arranged between the symmetrically arranged bridge expansion device monomers, an deformed steel structure 100 for mounting the rubber strips 11 is arranged on the upper portion of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers, and two sides of the rubber strips 11 are inserted and embedded in the deformed steel structure 100; the section of the deformed steel structure 100 is a C-shaped section; bridge telescoping device monomer includes box 10, sets up at the inside first sleeve 12 of a plurality of box 10, sets up vertical pin 14 and the second sleeve 13 in first sleeve 12, the inboard of first sleeve 12 and second sleeve 13 is provided with and erects 14 assorted internal threads of round pin, the upper portion and the first sleeve 12 of vertical pin 14 pass through threaded connection, the lower part and the second sleeve 13 of vertical pin 14 pass through threaded connection, the vertical upper surface and the lower surface that run through box 10 of first sleeve 12. The both sides of first sleeve 12 are provided with a plurality of crossing reinforcing bar 17 and annular reinforcing bar 18, a plurality of crossing reinforcing bar 17 are fixed in annular reinforcing bar 18. The box body 10 is a shell which is surrounded by rectangular steel plates and has a cavity inside, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body 10 is formed by welding rectangular steel plates; the bottom of the first sleeve 12 is flush with the bottom surface of the box body 10, and the top of the second sleeve 13 is flush with the upper surface of the bridge beam body 1; the vertical pin 14 is a cylindrical vertical pin, and the vertical pin 14 is made of steel, as shown in fig. 5; the first sleeve 12 and the second sleeve 13 are both steel sleeves, and the rubber strip 11 is made of rubber; the length ratio of the first sleeve 12 to the second sleeve 13 is 1: 1. The first sleeve 12 is connected to the tank 10 by welding. The vertical pin is a threaded surface vertical pin.
The vertical pin 14 may also be configured as shown in fig. 6, that is, the outer diameter of the top cap of the vertical pin is the same as the outer diameter of the lower thread, so that the vertical pin 14 is tightly connected with the interface of the upper end of the first sleeve 12 after being screwed into the first sleeve 12 of the box 10.
The user state of this embodiment is seen in figure 4, the bridge telescoping device comprises mated bridge telescoping device monomer, the concrete is filled in the free box structure of bridge telescoping device, realizes the self-stabilization of the vertical direction of bridge telescoping device through the action of gravity, through setting up erecting pin 14 and first sleeve 12 in the free box of bridge telescoping device, fixes bridge telescoping device monomer and bridge roof beam body 1, has realized the self-stabilization of horizontal direction, and the setting of second sleeve 13 can effectively slow down the wearing and tearing of erecting pin 14 groove top edge of opening on to bridge roof beam body 1. In addition, this embodiment the bridge telescoping device is on-the-spot directly to splice the installation, and construction speed is fast.
Example 3
The self-stabilizing bridge expansion device in the embodiment comprises symmetrically arranged bridge expansion device monomers, wherein rubber strips 11 for bridge expansion are arranged between the symmetrically arranged bridge expansion device monomers, the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are provided with deformed steel structures 100 for mounting the rubber strips 11, and two sides of the rubber strips 11 are inserted and embedded in the deformed steel structures 100; the section of the deformed steel structure 100 is a C-shaped section; bridge telescoping device monomer includes box 10, sets up at the inside first sleeve 12 of a plurality of box 10, sets up vertical pin 14 and the second sleeve 13 in first sleeve 12, the inboard of first sleeve 12 and second sleeve 13 is provided with and erects 14 assorted internal threads of round pin, the upper portion and the first sleeve 12 of vertical pin 14 pass through threaded connection, the lower part and the second sleeve 13 of vertical pin 14 pass through threaded connection, the vertical upper surface and the lower surface that run through box 10 of first sleeve 12. The two sides of the first sleeve 12 are provided with a plurality of transverse reinforcing steel bars 17 and annular reinforcing steel bars 18, and the plurality of transverse reinforcing steel bars 17 are fixed in the annular reinforcing steel bars 18. The box body 10 is a shell which is surrounded by rectangular steel plates and has a cavity inside, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body 10 is formed by welding rectangular steel plates; the bottom of the first sleeve 12 is flush with the bottom surface of the box body 10, and the top of the second sleeve 13 is flush with the upper surface of the bridge beam body 1; the vertical pin 14 is a cylindrical vertical pin, and the vertical pin 14 is made of steel; the first sleeve 12 and the second sleeve 13 are both steel sleeves, and the rubber strip 11 is made of rubber; the length ratio of the first sleeve 12 to the second sleeve 13 is 2: 1. The vertical pin is a threaded surface vertical pin.
Example 4
The self-stabilizing bridge expansion device of this embodiment, see fig. 7, is composed of symmetrically arranged bridge expansion device units, comb plates 110 for expansion and contraction of a bridge are arranged between the symmetrically arranged bridge expansion device units, see fig. 9, the comb plates 110 are composed of seam-spanning comb plates 111 and fixed comb plates 112, the seam-spanning comb plates 111 are composed of seam-spanning comb plate bodies and seam-spanning comb teeth, the fixed comb plates 112 are composed of fixed comb plate bodies and fixed comb teeth, the seam-spanning comb teeth and the fixed comb teeth are mutually crossed and have gaps, the upper surface of the comb plate 110 composed of the seam-spanning comb plates 111 and the fixed comb plates 112 is a plane, the seam-spanning comb teeth are parallel to the fixed comb teeth, the seam-spanning comb plates 111 are in an integrally formed structure, and the fixed comb plates 112 are in an integrally formed structure; the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are fixedly connected with the seam-crossing comb plate body and the fixed comb plate body respectively. Bridge telescoping device monomer includes box 10, sets up at the inside first sleeve 12 of a plurality of box 10, sets up vertical pin 14 and the second sleeve 13 in first sleeve 12, the inboard of first sleeve 12 and second sleeve 13 is provided with and erects 14 assorted internal threads of round pin, the upper portion and the first sleeve 12 of vertical pin 14 pass through threaded connection, the lower part and the second sleeve 13 of vertical pin 14 pass through threaded connection, the vertical upper surface and the lower surface that run through box 10 of first sleeve 12. The two sides of the first sleeve 12 are provided with a plurality of transverse reinforcing steel bars 17 and annular reinforcing steel bars 18, and the plurality of transverse reinforcing steel bars 17 are fixed in the annular reinforcing steel bars 18. The box body 10 is a shell which is surrounded by rectangular steel plates and has a cavity inside, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body 10 is formed by welding rectangular steel plates; the bottom of the first sleeve 12 is flush with the bottom surface of the box body 10, and the top of the second sleeve 13 is flush with the upper surface of the bridge beam body 1; the vertical pin 14 is a cylindrical vertical pin, and the vertical pin 14 is made of steel, as shown in fig. 5; the first sleeve 12 and the second sleeve 13 are both steel sleeves, and the rubber strip 11 is made of rubber; the length ratio of the first sleeve 12 to the second sleeve 13 is 1: 1. The first sleeve 12 is connected to the tank 10 by welding. The vertical pin is a threaded surface vertical pin.
The vertical pin 14 may also be configured as shown in fig. 6, that is, the outer diameter of the top cap of the vertical pin is the same as the outer diameter of the lower thread, so that the vertical pin 14 is tightly connected with the interface of the upper end of the first sleeve 12 after being screwed into the first sleeve 12 of the box 10.
In the using state of the present embodiment, see fig. 8, the box 10 is connected with the seam-crossing comb plate 111 and the fixed comb plate 112 of the comb plate 110 by welding. The bridge telescoping device comprises mated bridge telescoping device monomer, the concrete is filled in the free box structure of bridge telescoping device, realizes the self-stabilization of the vertical direction of bridge telescoping device through the action of gravity, through setting up perpendicular round pin and first sleeve in the free box of bridge telescoping device, fixes bridge telescoping device monomer and bridge roof beam body, has realized the self-stabilization of horizontal direction, and the telescopic setting of second can effectively slow down the wearing and tearing of perpendicular round pin groove top edge of opening on to the bridge roof beam body. In addition, the embodiment is directly spliced and installed on site, and the construction speed is high.
Example 5
The installation method of the self-stabilizing bridge expansion device in the embodiment 1 comprises the following steps:
(1) processing symmetrically arranged bridge expansion device monomers according to a drawing, and pouring concrete or steel fiber concrete into the box body 10 for solidification and forming;
(2) laying a transition layer 19 on the upper surface of the bridge body 1, so that the contact surface of the bridge expansion device monomer and the transition layer 19 meets the elevation and the gradient of the design requirement, and adjusting the thickness of the transition layer 19 according to the height of the bridge expansion device monomer, the height of the bridge body 1 and the height of the asphalt concrete bridge pavement 2;
(3) placing the symmetrically arranged bridge expansion device single bodies on the transition layer 19, punching the transition layer 19 and the bridge beam body 1 below the first sleeve 12 according to the position of the first sleeve 12, screwing the vertical pin 14 into the first sleeve 12 of the bridge expansion device single body to enable the top of the vertical pin 14 to be flush with the upper surface of the bridge expansion device single body, and injecting glue into a gap between the vertical pin 14 and the first sleeve 12; the transition layer 19 is any one of rubber, concrete or epoxy resin;
(4) and (5) installing the adhesive tape 11 or welding the comb plate 110 to complete the installation of the self-stabilizing bridge expansion device.
Example 6
The installation method of the self-stabilizing bridge expansion device in the embodiment 2 comprises the following steps:
(1) processing symmetrically arranged bridge expansion device monomers according to a drawing, and pouring concrete or steel fiber concrete into the box body 10 for solidification and forming;
(2) a groove is formed in the bridge beam body 1 according to the position of a first sleeve 12 on the bridge expansion device single body, and a second sleeve 13 is placed in the groove; or the second sleeve 13 is pre-embedded on the bridge beam body 1;
(3) laying a transition layer 19 on the upper surface of the bridge body 1, so that the contact surface of the bridge expansion device monomer and the transition layer 19 meets the elevation and the gradient of the design requirement, and adjusting the thickness of the transition layer 19 according to the height of the bridge expansion device monomer, the height of the bridge body 1 and the height of the asphalt concrete bridge pavement 2; the transition layer 19 is any one of rubber, concrete or epoxy resin;
(4) the bridge telescoping device monomer that will the symmetry set up is placed on transition layer 19, twists vertical pin 14 and makes vertical pin 14 top and bridge telescoping device monomer upper surface flush in the free first sleeve 12 of bridge telescoping device, installs adhesive tape 11 or welding fishback 110, accomplishes promptly the installation from firm bridge telescoping device.
Example 7
The self-stabilizing bridge expansion device in the embodiment comprises symmetrically arranged bridge expansion device monomers, wherein rubber strips 11 for bridge expansion are arranged between the symmetrically arranged bridge expansion device monomers, the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are provided with deformed steel structures 100 for mounting the rubber strips 11, and two sides of the rubber strips 11 are inserted and embedded in the deformed steel structures 100; the section of the deformed steel structure 100 is a C-shaped section; the bridge expansion device single body comprises a box body 10, a plurality of first sleeves 12 arranged inside the box body 10 and vertical pins 14 arranged in the first sleeves 12, wherein the first sleeves 12 vertically penetrate through the upper surface and the lower surface of the box body 10, the vertical pins 14 are inserted into the first sleeves 12, and the diameter of the first sleeves 12 is larger than that of the vertical pins 14; wherein the vertical pin 14 is a smooth surface vertical pin. The both sides of first sleeve 12 are provided with a plurality of crossing reinforcing bar 17 and annular reinforcing bar 18, a plurality of crossing reinforcing bar 17 are fixed in annular reinforcing bar 18. The box body 10 is a shell which is surrounded by rectangular steel plates and has a cavity inside, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body 10 is formed by welding rectangular steel plates; the bottom of the first sleeve 12 is flush with the bottom surface of the box body 10; the vertical pin 14 is a cylindrical vertical pin, and the vertical pin 14 is made of steel; the first sleeve 12 is a steel sleeve. The vertical pin 14 is made of steel, and the first sleeve 12 and the second sleeve 13 are both steel sleeves; the rubber strip 11 is made of rubber.
Example 8
In the technical solution of embodiment 7, the bridge expansion and contraction device unit further includes a second sleeve 13, and the lower part of the vertical pin 14 is inserted into the second sleeve 13; the top of the second sleeve 13 is flush with the upper surface of the bridge beam body 1; the vertical pin 14 is made of steel, and the first sleeve 12 and the second sleeve 13 are both steel sleeves; the rubber strip 11 is made of rubber.
Example 9
The installation method of the self-stabilizing bridge expansion device of embodiment 7 includes the following steps:
(1) processing symmetrically arranged bridge expansion device monomers according to a drawing, and pouring concrete or steel fiber concrete into the box body 10 for solidification and forming;
(2) laying a transition layer 19 on the upper surface of the bridge body 1, so that the contact surface of the bridge expansion device monomer and the transition layer 19 meets the elevation and the gradient of the design requirement, and adjusting the thickness of the transition layer 19 according to the height of the bridge expansion device monomer, the height of the bridge body 1 and the height of the asphalt concrete bridge pavement 2;
(3) placing symmetrically arranged bridge expansion device single bodies on a transition layer 19, punching the transition layer 19 and the bridge beam body 1 below the first sleeve 12 according to the position of the first sleeve 12, placing a vertical pin 14 into the first sleeve 12 of the bridge expansion device single body to enable the top of the vertical pin 14 to be flush with the upper surface of the bridge expansion device single body, and injecting glue into a gap between the vertical pin 14 and the first sleeve 12;
(4) and (5) installing the adhesive tape 11 or welding the comb plate 110 to complete the installation of the self-stabilizing bridge expansion device.
Bridge telescoping device and bridge roof beam body 1, asphalt concrete bridge deck pavement 2 are fixed, when the bridge roof beam body 1 takes place to stretch out and draw back, the bridge telescoping device produces the displacement with the bridge roof beam body 1 synchronization. The utility model has the advantages that: concrete does not need to be poured on site, the concrete is installed, the process of pouring the concrete is completed in the production and processing process, the difficulty and the construction time of site construction are reduced, maintenance is avoided, and the vehicle can be communicated after construction is completed. The flexible material can be rubber, asphalt or bonding glue and other flexible materials. The transition layer 19 has three functions: firstly, leveling the upper surface of a bridge body to ensure that the contact surface of the upper surface of the bridge body and a bridge expansion device meets the elevation and the gradient of the design requirement; secondly, supporting the bridge expansion device to enable the upper surface of the bridge expansion device to be flush with the asphalt concrete bridge deck paving surface; thirdly, the bridge expansion device is bonded with the bridge body 1 and the asphalt concrete bridge deck pavement 2 into a whole under the bonding action. The second sleeve 13 is arranged to effectively reduce the abrasion of the vertical pin to the upper edge of the groove formed in the bridge beam body 1, and the service life of the bridge expansion device is prolonged.
The self-stabilizing bridge expansion device of the utility model has the expansion amount of 0-80 mm. When the expansion amount is large, a plurality of middle beams or displacement boxes are added between the symmetrically arranged bridge expansion device units, and the middle beams or the displacement boxes are the prior art and are common knowledge of the technical personnel in the field. The center sill or displacement box may be commercially available. The comb plate 110 can be replaced by a cantilever comb plate or a multidirectional shifting comb plate.
From firm bridge telescoping device's box 10 upper surface is provided with a plurality of and lifts by crane the screw hole, can twist through the vertical pin that will be connected with the mechanism of lifting by crane when needs lift by crane and lift by crane the screw hole in, will from firm bridge telescoping device lifts by crane and removes. Although structure is comparatively simple from firm bridge telescoping device, nevertheless belong to the innovation product in bridge telescoping device technical field, overturned the structural design theory that traditional telescoping device adopted steel bar welding and concreting, propose for the first time to use the box to replace traditional reinforcing bar field weld and pour the concrete structure, very strong creativity, just the utility model discloses the product has produced the use, not only effectively subtracts short on-the-spot engineering time and reduces the construction degree of difficulty, and is more durable moreover, easy change, and result of use and economic benefits are showing.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of conceiving, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. The utility model provides a from steady bridge telescoping device which characterized in that: the bridge expansion device is composed of symmetrically arranged bridge expansion device single bodies, and rubber strips (11) for bridge expansion are arranged between the symmetrically arranged bridge expansion device single bodies; the bridge expansion device single body comprises a box body (10), a plurality of first sleeves (12) arranged inside the box body (10) and vertical pins (14) arranged in the first sleeves (12), wherein the first sleeves (12) vertically penetrate through the upper surface and the lower surface of the box body (10), the vertical pins (14) are inserted into the first sleeves (12), and the diameters of the first sleeves (12) are larger than the diameters of the vertical pins (14); wherein the vertical pin (14) is a smooth surface vertical pin or a threaded surface vertical pin.
2. The self-stabilizing bridge expansion device of claim 1, wherein: when the vertical pin (14) is a vertical pin with a threaded surface, the inner side of the first sleeve (12) is provided with an internal thread matched with the vertical pin (14), and the upper part of the vertical pin (14) is connected with the first sleeve (12) through a thread.
3. The self-stabilizing bridge expansion device of claim 2, wherein: the bridge expansion device single body further comprises a second sleeve (13), the inner side of the second sleeve (13) is provided with an internal thread matched with the vertical pin (14), and the lower part of the vertical pin (14) is connected with the second sleeve (13) through a thread; the top of the second sleeve (13) is flush with the upper surface of the bridge beam body (1); the vertical pin (14) is made of steel, and the first sleeve (12) and the second sleeve (13) are both steel sleeves; the rubber strip (11) is made of rubber; the length ratio of the first sleeve (12) to the second sleeve (13) is 1: 1-2: 1.
4. The self-stabilizing bridge expansion device of claim 1, wherein: the bridge expansion and contraction device single body further comprises a second sleeve (13), and the lower part of the vertical pin (14) is inserted into the second sleeve (13); the top of the second sleeve (13) is flush with the upper surface of the bridge beam body (1); the vertical pin (14) is made of steel, and the first sleeve (12) and the second sleeve (13) are both steel sleeves; the rubber strip (11) is made of rubber; the length ratio of the first sleeve (12) to the second sleeve (13) is 1: 1-2: 1.
5. The self-stabilizing bridge expansion device of claim 1, wherein: the two sides of the first sleeve (12) are provided with a plurality of transverse reinforcing steel bars (17) and annular reinforcing steel bars (18), and the plurality of transverse reinforcing steel bars (17) are fixed in the annular reinforcing steel bars (18).
6. The self-stabilizing bridge expansion device of claim 1, wherein: the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion and contraction device monomers are provided with deformed steel structures (100) for mounting adhesive tapes (11), and two sides of the adhesive tapes (11) are inserted and embedded in the deformed steel structures (100); the section of the deformed steel structure (100) is C-shaped.
7. The self-stabilizing bridge expansion device of claim 1, wherein: the box body (10) is a shell with a cavity inside and surrounded by rectangular steel plates, and the cavity inside the shell is filled with concrete or steel fiber concrete; the box body (10) is formed by welding rectangular steel plates; the bottom of the first sleeve (12) is flush with the bottom surface of the box body (10); the vertical pin (14) is a cylindrical vertical pin, and the vertical pin (14) is made of steel; the first sleeve (12) is a steel sleeve.
8. The self-stabilizing bridge expansion device of claim 1, wherein: replacing adhesive tapes (11) arranged between symmetrically arranged bridge expansion device monomers with comb plates (110), wherein each comb plate (110) consists of a seam-crossing comb plate (111) and a fixed comb plate (112), each seam-crossing comb plate (111) consists of a seam-crossing comb plate body and a seam-crossing comb tooth part, each fixed comb plate (112) consists of a fixed comb plate body and a fixed comb tooth part, and the seam-crossing comb tooth parts and the fixed comb tooth parts are mutually crossed and have gaps; the upper surface of a comb plate (110) consisting of a seam crossing comb plate (111) and a fixed comb plate (112) is a plane, the seam crossing comb tooth part is parallel to the fixed comb tooth part, the seam crossing comb plate (111) is of an integrally formed structure, and the fixed comb plate (112) is of an integrally formed structure; the upper parts of the opposite side surfaces of the symmetrically arranged bridge expansion device monomers are fixedly connected with the seam-crossing comb plate body and the fixed comb plate body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920110466.5U CN209941482U (en) | 2019-01-23 | 2019-01-23 | Self-stabilizing bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920110466.5U CN209941482U (en) | 2019-01-23 | 2019-01-23 | Self-stabilizing bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209941482U true CN209941482U (en) | 2020-01-14 |
Family
ID=69121454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920110466.5U Active CN209941482U (en) | 2019-01-23 | 2019-01-23 | Self-stabilizing bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209941482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853374A (en) * | 2019-01-23 | 2019-06-07 | 穆雪野 | It is a kind of to consolidate bridge extension joint and its installation method certainly |
-
2019
- 2019-01-23 CN CN201920110466.5U patent/CN209941482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853374A (en) * | 2019-01-23 | 2019-06-07 | 穆雪野 | It is a kind of to consolidate bridge extension joint and its installation method certainly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103938546B (en) | Simply supported non-uniform construction method | |
| CN104562931B (en) | The seam bridge floor unit of tension without lateral surfaces, bridge structure and construction method thereof | |
| CN104762871A (en) | Prestressed concrete-steel tank beam bond beam continuous beam bridge | |
| CN106337361B (en) | A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method | |
| CN206396615U (en) | Suitable for the bridge structure of bridge pier differential settlement | |
| CN109505222A (en) | A kind of netted sunpender bowstring arch bridge of assembled | |
| CN209493826U (en) | The interim splicing structure of concrete segment precast bridge | |
| CN205557302U (en) | Section section precast box girder's a seam connection structure is assembled to short line method | |
| CN106087711B (en) | Antinode work beam-steel concrete top plate-external prestressing combines T-shaped simply supported beam | |
| CN207794327U (en) | A kind of precast assembly structure of Subway Station Platform plate | |
| CN209941482U (en) | Self-stabilizing bridge expansion device | |
| CN110700113B (en) | Construction method of prestress applying device of non-prestressed beam bridge | |
| CN210712538U (en) | Self-stabilizing quick-mounting bridge expansion device | |
| CN111851569B (en) | Gantry crane track foundation beam and construction method thereof | |
| CN210657852U (en) | Prefabricated road deck and temporary road structure | |
| CN210599005U (en) | TBM tunnel is faced upward and is encircleed piece lining structure | |
| CN104047223A (en) | Light composite structure bridge and construction method thereof | |
| CN210712537U (en) | Install bridge telescoping device fast | |
| CN209292893U (en) | A kind of prefabricated assembled floorings splicing structure | |
| CN204570479U (en) | A kind of Hollow Slab Beam Bridge superstructure | |
| CN106638329A (en) | Assembling type bridge girder lower structure | |
| CN203947381U (en) | A kind of steel concrete chain type plate | |
| CN109853373B (en) | Self-stabilizing quick-mounting bridge expansion device and mounting method thereof | |
| CN206503079U (en) | A kind of packaged type bridges substructure | |
| CN216108007U (en) | Concrete beam type bridge and cast-in-situ hidden cover beam thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200120 Address after: Room 12101, 21 / F, unit 1, building 2, Jierui new era, No. 108, Zhangba North Road, Zhangba Street office, high tech Zone, Xi'an City, Shaanxi Province Patentee after: Shaanxi Rongchuang Communications Technology Co., Ltd. Address before: 710002 Unit 3, Unit 7, Unit 1, Sajinqiao 91, Lianhu District, Xi'an City, Shaanxi Province Patentee before: Mu Xueye |