CN210368590U - Connecting piece of integral prefabricated bridge deck auxiliary facilities - Google Patents
Connecting piece of integral prefabricated bridge deck auxiliary facilities Download PDFInfo
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- CN210368590U CN210368590U CN201920305008.7U CN201920305008U CN210368590U CN 210368590 U CN210368590 U CN 210368590U CN 201920305008 U CN201920305008 U CN 201920305008U CN 210368590 U CN210368590 U CN 210368590U
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Abstract
The utility model provides a connecting piece of accessory facility of integral prefabricated bridge floor, includes sleeve (2) and bolt (1), sleeve (2) are the column, and sleeve (2) lower extreme is provided with and is perpendicular and with the coiled hair (4) of axle center with sleeve (2) axis, and sleeve (2) upper end is provided with the screw hole, and screw rod (11) assembly is on the screw hole. The utility model provides a pair of connecting piece of auxiliary facility of integral prefabricated bridge floor has solved the required pre-buried assembly part bearing capacity of auxiliary facility of integral prefabricated bridge floor strong, demand that the durability is high.
Description
Technical Field
The utility model relates to a public transport facility technical field, in particular to connecting piece of integral bridge floor subsidiary facility.
Background
The existing high-speed railway and passenger-cargo collinear bridge is generally embedded with reinforcing steel bars on flanges at two sides of a box girder and cast with a concrete protective wall in situ; the outermost side curtain plate is of a prefabricated structure, a rail and an acoustic barrier interface are embedded, reinforcing steel bars are connected with the bridge deck, and the curtain plate is connected with the bridge flange through a cast-in-place concrete vertical wall; the middle cable trough vertical wall divides the power trough and the communication signal trough, cast-in-place concrete is also adopted, and a waterproof layer and a concrete protective layer with certain thickness are required to be arranged at the exposed part of the bridge floor at the bottom of the trough body.
The structure and the construction mode have higher requirements on the site, meanwhile, the dead weight of the curtain board structure is very large, a large amount of manpower and templates need to be input, the curtain board structure is influenced by weather and human factors, the pouring construction quality is not easy to guarantee, the construction period is longer, and in addition, the cast-in-place construction also has influence on the environment along the line.
The existing integral type prefabricated bridge deck auxiliary facility adopts an integral type Chinese character 'shan' shaped structure, solves the problems, can be directly connected with a bridge flange plate by bolts or other connection modes, but the traditional embedded sleeve is of a cylindrical structure, the strength of the traditional embedded sleeve is not enough to support the integral type prefabricated bridge deck auxiliary facility made of concrete, and the embedded sleeve which is convenient to install and higher in bearing capacity than the traditional embedded sleeve is needed.
Disclosure of Invention
The utility model aims at providing a simple structure, simple to operate, bearing capacity are good and have the connecting piece of integral prefabricated bridge floor subsidiary facility of good durability.
The utility model provides a connecting piece of integral prefabricated bridge deck auxiliary facilities, which comprises a bolt, a sleeve and a backing plate component, wherein the sleeve and the backing plate component are arranged outside the bolt, the sleeve is columnar and is positioned at the tail part of the bolt, the backing plate component is positioned at the top part of the bolt, the lower end of the sleeve is provided with a coiled head which is vertical to the axis of the sleeve and has the same axis, and the upper end of the sleeve is provided with a threaded hole; the bolt comprises a screw rod, a toothless rod and a screw head which are connected from bottom to top, the screw rod is assembled on a threaded hole, the pan head is arranged on the bottom surface of the sleeve, and compared with the prior art, the anchor bar is more in material, more stable and further enhances the anchoring and anti-pulling capacity of the sleeve.
A connecting piece of integral prefabricated bridge floor subsidiary facility, as preferred mode, the backing plate subassembly is the flat annular column including passing power gasket, pre-buried backing plate, pre-buried sleeve pipe, pass power gasket and pre-buried backing plate by no tooth pole connected gradually, pre-buried sleeve pipe is long annular column, passes power gasket and is used for increasing area of contact, reduces pressure, prevents not hard up, prevents that the bolt is not hard up, prevents that pre-buried backing plate and spiral shell head from wearing and tearing, pre-buried backing plate plays the effect of protection pre-buried sleeve pipe equally.
A connecting piece of attached facility of integral prefabricated bridge floor, as preferred mode, the external diameter is less than or equal to pre-buried backing plate internal and external diameter in the biography power gasket, the bolt of being convenient for passes the backing plate subassembly, assembles in the sleeve.
A connecting piece of integral prefabricated bridge floor subsidiary facility, as preferred mode, be provided with at least one axial on the sleeve column lateral wall arrange with the cyclic annular arch of sleeve with the axle center, reinforcing sleeve is to ascending bearing capacity.
A connecting piece of attached facility of integral prefabricated bridge floor, as preferred mode, be provided with on the buried sleeve lateral wall at least one axial arrange with the cyclic annular arch of buried sleeve axle center, reinforcing buried sleeve is to ascending bearing capacity.
A connecting piece of integral prefabricated bridge floor subsidiary facility, as preferred mode, pan head and muffjoint position use groove weld full weld, adopt the pan head, the pan head is great, big with the area of contact of concrete, increased axial tightiness, improve sleeve resistance to plucking bearing capacity.
A connecting piece of attached facility of integral prefabricated bridge floor, as preferred mode, the bolt hole is the internal thread counter bore.
A connecting piece of attached facility of integral prefabricated bridge floor, as preferred mode, the sleeve is pre-buried in the bridge flange inboard.
A connecting piece of attached facility of integral prefabricated bridge floor, as preferred mode, pre-buried backing plate, pre-buried sleeve pipe is pre-buried on the attached facility bottom plate of integral prefabricated bridge floor.
The sleeve is arranged on the flange plate, the embedded sleeve is arranged on the integral type prefabricated bridge deck auxiliary facility floor, the two parts are connected through the bolt, and the integral type prefabricated bridge deck auxiliary facility is assembled on the flange plate.
The utility model provides a connecting piece of attached facility of integral prefabricated bridge floor, beneficial effect as follows:
(1) the pan head is arranged at the bottom of the sleeve, so that the bearing capacity of the sleeve is enhanced, the contact area with concrete is large, the axial tightness is increased, and the mechanical property is good;
(2) the prefabricated backing plate component is arranged at the position of the bolt without a tooth bar, so that the bolt has good durability;
(3) the outer walls of the sleeve and the prefabricated sleeve are provided with annular bulges to enhance the axial bearing capacity.
Drawings
FIG. 1 is a schematic view of a connector for an integral prefabricated deck attachment;
FIG. 2 is a schematic view of a connector bolt for an integral prefabricated deck attachment;
figure 3 is a schematic view of a connector insert assembly for an integral prefabricated deck attachment.
Reference numerals:
1. a bolt; 11. a screw; 12. a toothless rod; 13. a screw head; 2. a sleeve; 3. a backing plate assembly; 31. a force transfer gasket; 32. pre-burying a base plate; 33. pre-burying a sleeve; 4. and (5) turning the pan head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in figure 1, the connecting piece of the integral prefabricated bridge deck auxiliary facility comprises a base plate component 3, a sleeve 2 and a bolt 1, wherein the bolt 1 is arranged on the sleeve 2, and the base plate component 3 is arranged at the upper end of the sleeve 2 through the bolt 1.
The long 305mm of sleeve 2 is the column, and the bottom surface is provided with sleeve 2 coaxial coiled hair 4 under sleeve 2, and sleeve 2 upper end is provided with the screw hole. The cylindrical side wall of the sleeve 2 is uniformly provided with 11 annular bulges which are axially arranged and have the same axle center with the sleeve 2. The bolt holes are counter bores with internal threads. The sleeve 2 is pre-buried in the bridge flange plate.
The connecting position of the pan head 4 and the sleeve 2 is fully welded by a groove. The pan head 4 is in a cylindrical cake shape and 10mm thick. The pan head 4 is 170mm in diameter.
As shown in fig. 2, the bolt 1 comprises a screw rod 11, a toothless rod 12 and a screw head 13 which are connected from bottom to top, wherein the screw rod 11 is assembled on a threaded hole; the backing plate assembly 3 is disposed at the toothless stem 12 position. The length of the screw rod 11 is 80mm, the length of the toothless rod 12 is 170mm, and the screw head 13 is a hexagonal flange screw head and is 26mm thick.
As shown in fig. 3, the backing plate assembly 3 includes a force transfer gasket 31, an embedded backing plate 32, and an embedded sleeve 33, which are connected in sequence by the toothless rod 12, wherein the force transfer gasket 31 and the embedded backing plate 32 are both flat annular columns, and the embedded sleeve is a long annular column. Four annular bulges which are axially arranged and have the same axle center with the embedded sleeve 33 are uniformly arranged on the side wall of the embedded sleeve 33.
The inner diameter and the outer diameter of the force transfer gasket 31 are less than or equal to the inner diameter and the outer diameter of the embedded backing plate 32.
The backing plate 32 and the embedded sleeve 33 are embedded in the integral prefabricated bridge deck auxiliary facility bottom plate.
The bolt is of 42CrMoA grade, the strength grade is 10.9 grade, the sleeve is hardened and tempered by 45 steel, the hardness after hardening and tempering reaches HRC31 +/-2, and the chemical composition and the mechanical property (including impact toughness) of the material meet the regulations of TB/T3320-; the anticorrosion requirement is as follows: the sleeve adopts multi-component alloy co-permeation (after passivation treatment), and the bolt adopts multi-component alloy co-permeation, a zinc-chromium coating and a sealing layer; the sleeve is matched with the sleeve cover, and the bolt is matched with the flat washer and the spring washer for use.
The backing plate component 3 is made of Q345A, and the chemical components and mechanical properties of the material meet the regulations of GB700-88 carbon structural steel; positioning and fixing the embedded sleeve and the embedded gasket by adopting a die and then fully welding; the anticorrosion requirement is as follows: and (4) co-infiltrating (passivating) the multi-element alloy.
Example 2
As shown in figure 1, the connecting piece of the integral prefabricated bridge deck auxiliary facility comprises a base plate component 3, a sleeve 2 and a bolt 1, wherein the bolt 1 is arranged on the sleeve 2, and the base plate component 3 is arranged at the upper end of the sleeve 2 through the bolt 1.
The sleeve 2 is in a column shape with the length of 175mm, the lower bottom surface of the sleeve 2 is provided with a pan head 4 which is coaxial with the sleeve 2, and the upper end of the sleeve 2 is provided with a threaded hole. The cylindrical side wall of the sleeve 2 is evenly provided with 6 annular bulges which are axially arranged and have the same axle center with the sleeve 2. The bolt holes are counter bores with internal threads. The sleeve 2 is pre-buried in the bridge flange plate.
The connecting position of the pan head 4 and the sleeve 2 is fully welded by a groove. The pan head 4 is in a cylindrical cake shape and 10mm thick. The pan head is 170 mm.
As shown in fig. 2, the bolt 1 comprises a screw rod 11, a toothless rod 12 and a screw head 13 which are connected from bottom to top, wherein the screw rod 11 is assembled on a threaded hole; the backing plate assembly 3 is disposed at the toothless stem 12 position. The length of the screw rod 11 is 70mm, the length of the toothless rod 12 is 10mm, and the screw head 13 is a hexagonal flange screw head and is 26mm thick.
As shown in fig. 3, the backing plate assembly 3 includes a force transfer gasket 31, an embedded backing plate 32, and an embedded sleeve 33, which are connected in sequence by the toothless rod 12, wherein the force transfer gasket 31 and the embedded backing plate 32 are both flat annular columns, and the embedded sleeve is a long annular column. Four annular bulges which are axially arranged and have the same axle center with the embedded sleeve 33 are uniformly arranged on the side wall of the embedded sleeve 33.
The inner diameter and the outer diameter of the force transfer gasket 31 are less than or equal to the inner diameter and the outer diameter of the embedded backing plate 32.
The backing plate 32 and the embedded sleeve 33 are embedded in the integral prefabricated bridge deck auxiliary facility bottom plate.
The bolt is of 42CrMoA grade, the strength grade is 10.9 grade, the sleeve is hardened and tempered by 45 steel, the hardness after hardening and tempering reaches HRC31 +/-2, and the chemical composition and the mechanical property (including impact toughness) of the material meet the regulations of TB/T3320-; the anticorrosion requirement is as follows: the sleeve adopts multi-component alloy co-permeation (after passivation treatment), and the bolt adopts multi-component alloy co-permeation, a zinc-chromium coating and a sealing layer; the sleeve is matched with the sleeve cover, and the bolt is matched with the flat washer and the spring washer for use.
The backing plate component 3 is made of Q345A, and the chemical components and mechanical properties of the material meet the regulations of GB700-88 carbon structural steel; positioning and fixing the embedded sleeve and the embedded gasket by adopting a die and then fully welding; the anticorrosion requirement is as follows: and (4) co-infiltrating (passivating) the multi-element alloy.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a connecting piece of accessory facility of integral prefabricated bridge floor which characterized in that: the bolt comprises a bolt (1), a sleeve (2) arranged outside the bolt (1) and a base plate component (3), wherein the sleeve (2) is columnar and is positioned at the tail part of the bolt (1), and the base plate component (3) is positioned at the top of the bolt (1); a pan head (4) which is perpendicular to the axis of the sleeve (2) and has the same axis is arranged at the lower end of the sleeve (2), and a threaded hole is formed in the upper end of the sleeve (2); the bolt (1) comprises a screw rod (11), a toothless rod (12) and a screw head (13) which are sequentially connected from bottom to top, and the screw rod (11) is assembled on the threaded hole.
2. A connector for an integral precast deck attachment according to claim 1, wherein: backing plate subassembly (3) set up no tooth pole (12) outside, backing plate subassembly (3) include by no tooth pole (12) connect gradually biography power gasket (31), pre-buried backing plate (32), buried sleeve pipe (33), biography power gasket (31) with buried backing plate (32) are flat annular column, buried sleeve pipe (33) are long annular column.
3. A connector for an integral precast deck attachment according to claim 2, wherein: the inner diameter of the force transfer gasket (31) is smaller than or equal to that of the embedded backing plate (32), and the outer diameter of the force transfer gasket (31) is smaller than or equal to that of the embedded backing plate (32).
4. A connector for an integral precast deck attachment according to claim 1, wherein: at least one annular bulge which is axially arranged and has the same axle center with the sleeve (2) is arranged on the cylindrical side wall of the sleeve (2).
5. A connector for an integral precast deck attachment according to claim 2, wherein: at least one annular bulge which is axially arranged and has the same axis with the embedded sleeve (33) is arranged on the side wall of the embedded sleeve (33).
6. A connector for an integral precast deck attachment according to claim 1, wherein: and the connecting position of the pan head (4) and the sleeve (2) is subjected to groove full weld.
7. A connector for an integral precast deck attachment according to claim 1, wherein: the threaded hole is an internal thread counter bore.
8. A connector for an integral precast deck attachment according to any one of claims 1 to 7, wherein: the sleeve (2) is embedded in the bridge flange plate.
9. A connector for a monolithic pre-fabricated deck attachment according to any one of claims 2, 3 or 5, wherein: the embedded base plate (32) and the embedded sleeve (33) are embedded in the integral type prefabricated bridge deck auxiliary facility bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920305008.7U CN210368590U (en) | 2019-03-12 | 2019-03-12 | Connecting piece of integral prefabricated bridge deck auxiliary facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920305008.7U CN210368590U (en) | 2019-03-12 | 2019-03-12 | Connecting piece of integral prefabricated bridge deck auxiliary facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210368590U true CN210368590U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920305008.7U Active CN210368590U (en) | 2019-03-12 | 2019-03-12 | Connecting piece of integral prefabricated bridge deck auxiliary facilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210368590U (en) |
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2019
- 2019-03-12 CN CN201920305008.7U patent/CN210368590U/en active Active
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