CN219218654U

CN219218654U - Suspender assembly of steel tube concrete tied arch bridge

Info

Publication number: CN219218654U
Application number: CN202320138055.3U
Authority: CN
Inventors: 张涛; 郭汶朋; 李福春; 郭国防; 张广雷; 李绍凯; 宁召兄
Original assignee: Shandong Road and Bridge Construction Group Co Ltd
Current assignee: Shandong Road and Bridge Construction Group Co Ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-06-20
Anticipated expiration: 2033-01-16

Abstract

The utility model relates to a jib subassembly of steel pipe concrete tie rod arched bridge belongs to the field of arched bridge construction, and the jib subassembly includes the jib body, sets up in the coupling assembling at jib body both ends, two sets of coupling assembling all includes anchor head and anchor backing plate, the anchor backing plate is used for with bridge fixed connection, the anchor head rotates with the anchor backing plate to be connected, and the anchor head rotates with the anchor backing plate to be connected for be difficult for producing additional moment of bending because of construction error during the jib construction, thereby realize reducing the purpose that construction error influences jib life.

Description

Suspender assembly of steel tube concrete tied arch bridge

Technical Field

The application relates to the field of arch bridge construction, in particular to a suspender component of a steel tube concrete tie rod arch bridge.

Background

The tied arch bridge is widely applied to the bridge construction field due to the characteristics of large span, attractive appearance and the like. Tied arch bridges require the use of booms, ribs and bridges, wherein the booms are the stressed members of the bridge arch bridge and the load of the deck requires the booms to be transferred to the ribs.

In the construction site, construction errors are inevitably generated during construction of the suspender, and additional bending moment is generated on the suspender, so that the service life of the suspender is influenced.

Disclosure of Invention

In order to enable the boom not to easily generate additional bending moment due to construction errors during construction, so that the influence of the construction errors on the service life of the boom is reduced, and the boom assembly of the steel tube concrete tied arch bridge is provided.

The application provides a jib subassembly of steel pipe concrete tied arch bridge relates to following technical scheme:

the utility model provides a jib subassembly of steel pipe concrete tied arch bridge, includes the jib body, sets up in the coupling assembling at jib body both ends, two sets of coupling assembling all includes anchor head and anchor backing plate, anchor backing plate is used for with bridge fixed connection, the anchor head rotates with anchor backing plate to be connected.

Through adopting above-mentioned technical scheme, the rotation of anchor head and anchor backing plate is connected for be difficult for producing additional moment of bending because of construction error when the jib is under construction, thereby realize reducing the purpose that construction error influences jib life.

Optionally, a protective cover is arranged on the bridge, and the protective cover is sleeved on the outer side of the anchor head and fixedly connected with the anchor backing plate.

Through adopting above-mentioned technical scheme, the setting of safety cover makes the anchor head be difficult for being eroded by rainwater etc. to the influence of rainwater to anchor head life has been reduced.

Optionally, a cable conduit is sleeved outside the boom body, one end of the cable conduit, which is close to the anchor backing plate, is fixedly connected with the anchor backing plate, and a shock absorber is arranged between the cable conduit and the boom body.

Through adopting above-mentioned technical scheme, the setting of cable duct has realized the purpose for jib body direction, and the setting of shock absorber makes the cable duct cover be difficult for appearing rocking the condition after locating the jib body outside in addition.

Optionally, a waterproof cover is arranged on the cable duct near the ground, one end of the waterproof cover is connected with the boom body, and the other end of the waterproof cover is connected with the cable duct.

By adopting the technical scheme, the waterproof cover is arranged so that rainwater is not easy to infiltrate into the cable duct.

Optionally, a sealing ring is fixedly connected to the cable duct, and the sealing ring is located at a position where the cable duct abuts against the waterproof cover.

Through adopting above-mentioned technical scheme, the setting of sealing ring makes and adopts flexible conflict between cable duct and the buckler to further make in the difficult infiltration cable duct of rainwater.

Optionally, the waterproof cover includes connecting portion and expansion portion, connecting portion one end and jib body fixed connection, other end and expansion portion one end fixed connection, expansion portion other end and cable pipe fixed connection, expansion portion is close to the one end diameter of connecting portion and is greater than cable pipe diameter.

By adopting the technical scheme, the setting of expansion portion is convenient for the staff to locate the buckler outside the cable duct with the cover.

Optionally, connecting portion passes through buckler snap ring and cable duct connection, buckler snap ring includes fixed part, linking portion and locking portion, linking portion cover is located the buckler outside, locking portion is located linking portion one end and locking portion keeps away from linking portion's one end slope to the center setting, fixed part and linking portion threaded connection, be provided with the arch on the fixed part, the arch can conflict with the locking portion.

Through adopting above-mentioned technical scheme, the staff presses the linking portion, then rotates the fixed part to make the fixed part drive protruding removal, and then make protruding conflict locking part gradually, in order to make the one end fastening buckler of connecting portion of keeping away from of locking part.

Optionally, the locking part is provided with a plurality of grooves.

By adopting the technical scheme, the groove is arranged, so that the device can be used for accommodating the extruded sealing piece and the waterproof cover on one hand; on the other hand, the protrusion of the fixing part can tighten the locking part better.

Optionally, a baffle is arranged on the cable duct far away from the ground, and the baffle is positioned on one side of the corresponding shock absorber close to the ground.

By adopting the technical scheme, the setting of baffle has reduced the rainwater volume of infiltration cable pipe to reduce the influence of rainwater to jib life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the anchor head is rotationally connected with the anchor backing plate, so that the purpose that the suspender is not easy to twist and the influence on the service life of the suspender is reduced is realized;

2. the groove on the locking part is arranged, so that the sealing part and the waterproof cover which are extruded can be accommodated on one hand; on the other hand, the protrusion of the fixing part can tighten the locking part better.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic view of the overall structure of the waterproof cover snap ring.

Reference numerals illustrate: 100. a boom body; 200. a connection assembly; 210. an anchor head; 211. an upper anchor head; 212. a lower anchor head; 220. an anchor backing plate; 300. a cable guide tube; 310. a shock absorber; 320. a baffle; 400. a waterproof cover; 410. a connection part; 420. an enlarged portion; 430. a seal ring; 500. a waterproof cover clamping ring; 510. a fixing part; 511. a protrusion; 520. a joint portion; 530. a locking part; 531. a groove; 600. and a protective cover.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a suspender assembly of a steel tube concrete tied arch bridge. Referring to fig. 1, the boom assembly includes a boom body 100 and connection assemblies 200 disposed at both ends of the boom body 100, the connection assemblies 200 being used to connect the boom body 100 with a bridge.

Referring to fig. 1 and 2, the connection assembly 200 in this embodiment is specifically configured to: the connection assembly 200 includes an anchor head 210 and an anchor pad 220, the anchor pad 220 is fixedly connected to a bridge, the anchor pad 220 is welded to the bridge in this embodiment, and the anchor pad 220 may be fixedly connected to the bridge by bolts in other embodiments. In order to reduce the additional bending moment generated by the construction error, one end of the anchor head 210, which is away from the boom body 100, passes through the anchor pad 220 and is rotatably connected to the anchor pad 220, and in this embodiment, the anchor head 210 is ball-hinged to the anchor pad 220.

In order to make the anchor head 210 difficult to be corroded, therefore fixedly connected with safety cover 600 on the bridge, the safety cover 600 cover is located the anchor head 210 outside, and safety cover 600 one end opening is so that the staff locates the safety cover 600 cover outside the anchor head 210, safety cover 600 open end and anchor backing plate 220 fixed connection to form the airtight space that is used for holding anchor head 210 between safety cover 600 and the anchor backing plate 220.

In order to protect the anchor head 210 extending beyond the anchor pad 220 and guide the boom body 100, a cable guide 300 is sleeved outside the boom body 100, one end of the cable guide 300 is fixedly connected with the anchor pad 220, and the other end extends outside the boom body 100 and is connected with the boom body 100. Since the anchor head 210 has a larger diameter than the boom body 100, the spacing between the cable guide 300 and the boom body 100 is larger. Based on this, in order to reduce the shake of the cable guide 300 and to reduce the impact on the cable guide 300 when the boom body 100 is shake, and further to improve the connection stability between the cable guide 300 and the boom body 100, a damper 310 is provided between the cable guide 300 and the boom body 100, the damper 310 is specifically provided in a ring shape and is sleeved outside the boom body 100, the inner side of the damper 310 is connected with the boom body 100, and the outer side of the damper 310 is fixedly connected with the cable guide 300. In this embodiment, the shock absorber 310 is a rubber pad, in order to facilitate connection between the shock absorber 310 and the boom body 100 for a worker in this embodiment, the shock absorber 310 may be selectively sleeved outside the boom body 100 and abuts against the inner wall of the cable duct 300, and in other embodiments, the shock absorber 310 may be selectively fixedly connected to the boom body 100.

Anchor head 210 closer to the ground is defined as lower anchor head 212 in this embodiment, and anchor head 210 farther from the ground is defined as upper anchor head 211.

In order to prevent rainwater from penetrating between the cable duct 300 and the boom body 100, a baffle 320 is disposed between the boom body 100 connected with the upper anchor head 211 and the cable duct 300, the baffle 320 is located at one side of the corresponding shock absorber 310 away from the upper anchor head 211, one side of the baffle 320 is fixedly connected with the outer peripheral wall of the boom body 100, the other side is fixedly connected with the inner peripheral wall of the cable duct 300, and when the boom assembly is installed, the baffle 320 and the cable duct 300 can be welded in advance, and then the cable duct 300 and the boom body 100 are installed.

Referring to fig. 1 and 3, a waterproof cover 400 is provided on the cable guide 300 connected to the lower anchor head 212, the waterproof cover 400 is sleeved outside the cable guide 300 and the boom body 100, and the waterproof cover 400 is a rubber waterproof cover.

The waterproof cover 400 includes a connecting portion 410 and an expanding portion 420 which are fixedly connected, so that in order to reduce the infiltration of rainwater between the connecting portion 410 and the expanding portion 420, in this embodiment, the connecting portion 410 and the expanding portion 420 are integrally formed, one end of the connecting portion 410, which is away from the expanding portion 420, is fixedly connected with the boom body 100, and one end of the expanding portion 420, which is away from the connecting portion 410, is connected with the cable guide 300 through the waterproof cover snap ring 500.

Because cable duct 300 is the rigid part, and waterproof cover 400 is the flexible part, when waterproof cover 400 is tightened up, very easily produce the gap between waterproof cover 400 of fold and the cable duct 300 to lead to the rainwater infiltration in cable duct 300, and then influence the life of guide arm subassembly, in order to improve the leakproofness between cable duct 300 and the waterproof cover 400, fixedly connected with sealing ring 430 on the cable duct 300, sealing ring 430 is located cable duct 300 and waterproof cover 400 conflict position, thereby makes waterproof cover snap ring 500 stirrup waterproof cover 400 and sealing ring 430.

In order to further improve the connection tightness between the waterproof cover 400 and the sealing ring 430, the waterproof cover snap ring 500 includes a fixing portion 510, a connecting portion 520 and a locking portion 530, the connecting portion 520 is sleeved outside the waterproof cover 400, the locking portion 530 is fixedly connected with one end of the connecting portion 520, and the locking portion 530 can abut against an outer wall of one end of the waterproof cover 400, which is close to the lower anchor head 212. The fixing portion 510 is screwed with the connecting portion 410, a protrusion 511 is fixedly connected to an inner wall of one end of the fixing portion 510, which is close to the lower anchor head 212, and the protrusion 511 can abut against the locking portion 530.

The worker rotates the fixing portion 510, so that the fixing portion 510 drives the protrusion 511 to move away from the lower anchor head 212, and further the protrusion 511 drives the locking portion 530 to move toward the direction approaching to the center line of the cable duct 300, and finally the locking portion 530 fastens the waterproof cover 400.

In order to prevent the waterproof cover 400 from being wrinkled and affecting the tightness between the waterproof cover 400 and the cable guide 300 when the waterproof cover clamp ring 500 is used for tightening the waterproof cover 400, one end of the locking part 530, which is close to the lower anchor head 212, is inclined towards the direction close to the center line of the cable guide 300, the locking part 530 is provided with a plurality of grooves 531, the grooves 531 are uniformly distributed along the circumferential direction of the locking part 530, and the grooves 531 are inclined, so that the tightness between the waterproof cover 400 and the cable guide 300 is further improved.

The diameter of the end of the enlarged portion 420 near the connecting portion 410 is larger than the diameter of the cable guide 300, so that the connecting position of the enlarged portion 420 and the connecting portion 410 extends outwards away from the center line of the boom body 100 to form a waterproof edge, thereby achieving the purpose of reducing the amount of rainwater flowing into the waterproof cover 400 and the waterproof cover clamping ring 500, and simultaneously achieving the purpose of facilitating the installation of the waterproof cover 400 by a worker.

The implementation principle of the embodiment of the application is as follows: after the cable guide 300, the waterproof cover 400 and the waterproof cover clamping ring 500 are sleeved on the outer side of the boom body 100 by workers, the boom body 100 is connected with the anchor head 210, the anchor head 210 is connected with the anchor pad 220, the anchor pad 220 is fixedly connected with a bridge, and finally the fixing part 510 is rotated so that the fixing part 510 drives the protrusion 511 to move, so that one end of the locking part 530, which is away from the connecting part 410, moves towards the direction close to the center line of the cable guide 300, and the installation of the guide rod assembly is completed.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A boom assembly for a concrete filled steel tube tied-arch bridge, characterized by: including jib body (100), set up in coupling assembling (200) at jib body (100) both ends, two sets of coupling assembling (200) all include anchor head (210) and anchor backing plate (220), anchor backing plate (220) are used for with bridge fixed connection, anchor head (210) are connected with anchor backing plate (220) rotation.

2. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 1, wherein: the bridge is provided with a protective cover (600), and the protective cover (600) is sleeved on the outer side of the anchor head (210) and fixedly connected with the anchor backing plate (220).

3. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 2, wherein: the suspension rod body (100) is sleeved with a cable guide pipe (300), one end, close to the anchor backing plate (220), of the cable guide pipe (300) is fixedly connected with the anchor backing plate (220), and a shock absorber (310) is arranged between the cable guide pipe (300) and the suspension rod body (100).

4. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 3, wherein: a waterproof cover (400) is arranged on the cable duct (300) close to the ground, one end of the waterproof cover (400) is connected with the boom body (100), and the other end of the waterproof cover is connected with the cable duct (300).

5. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 4, wherein: the cable guide pipe (300) is fixedly connected with a sealing ring (430), and the sealing ring (430) is located at the position where the cable guide pipe (300) is abutted against the waterproof cover (400).

6. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 4, wherein: the waterproof cover (400) comprises a connecting part (410) and an expanding part (420), one end of the connecting part (410) is fixedly connected with the boom body (100), the other end of the connecting part is fixedly connected with one end of the expanding part (420), the other end of the expanding part (420) is fixedly connected with the cable duct (300), and the diameter of one end, close to the connecting part (410), of the expanding part (420) is larger than that of the cable duct (300).

7. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 6, wherein: connecting portion (410) are connected with cable duct (300) through buckler snap ring (500), buckler snap ring (500) are including fixed part (510), linking portion (520) and locking portion (530), linking portion (520) cover is located buckler (400) outside, locking portion (530) are located linking portion (520) one end and locking portion (530) and keep away from the one end slope of linking portion (520) to the center setting, fixed part (510) and linking portion (520) threaded connection, be provided with arch (511) on fixed part (510), arch (511) can conflict with locking portion (530).

8. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 7, wherein: the locking part (530) is provided with a plurality of grooves (531).

9. A boom assembly for a concrete filled steel tube tied-arch bridge according to claim 3, wherein: the cable guide pipe (300) far away from the ground is provided with a baffle plate (320), and the baffle plate (320) is positioned on one side, close to the ground, of the corresponding shock absorber (310).