CN114108475A - Cable-stayed bridge tower beam mounting structure and space ex-situ interaction construction method thereof - Google Patents
Cable-stayed bridge tower beam mounting structure and space ex-situ interaction construction method thereof Download PDFInfo
- Publication number
- CN114108475A CN114108475A CN202111423434.9A CN202111423434A CN114108475A CN 114108475 A CN114108475 A CN 114108475A CN 202111423434 A CN202111423434 A CN 202111423434A CN 114108475 A CN114108475 A CN 114108475A
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- China
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- cable
- fixedly connected
- stayed bridge
- base
- supporting seat
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
Abstract
The invention relates to a cable-stayed bridge tower beam mounting structure and a space ex-situ interaction construction method thereof. The cable-stayed bridge tower beam mounting structure comprises a base and a beam body arranged on the base, wherein the beam body is rotatably mounted on the base through an angle adjusting device, a height detection adjusting device is mounted at the top of the beam body, the height adjusting device comprises a supporting seat mounted on the beam body in a lifting mode, and a reflector and a laser lamp which are mounted on the front side and the rear side of the supporting seat in a lifting mode, the reflector is fixed to the back of the supporting seat, and the laser lamp swings left and right and is mounted in front of the supporting seat. The invention realizes laser positioning in a mode that the laser lamps and the reflectors are respectively arranged on the two adjacent beam bodies, so that the laser positioning is compared with a preset box beam laying path, the precision of space ectopic interactive construction is improved, and the positioning mode also enables the angle adjustment of the tower beam to be more convenient in the installation process.
Description
Technical Field
The invention belongs to the field of construction of cable-stayed bridge tower beams, and particularly relates to a cable-stayed bridge tower beam mounting structure and a space ex-situ interaction construction method thereof.
Background
A cable-stayed bridge is also called a diagonal tension bridge, which is a bridge that a main beam is directly pulled on a bridge tower by a plurality of stay ropes, and is a structural system formed by combining a pressure-bearing tower, a pulled rope and a bending-bearing beam body, and can be regarded as a multi-span elastic support continuous beam with the stay ropes replacing buttresses, so that the bending moment in the beam body can be reduced, the building height is reduced, the structural weight is lightened, and materials are saved, the cable-stayed bridge mainly comprises the cable towers, the main beam and the stay ropes, is a self-anchored system, the horizontal force of the stay ropes is borne by the beam, the beam is supported on the stay ropes led out by a tower column besides the buttresses, the cable-stayed bridge is divided into a steel cable-stayed bridge, a combined beam bridge and a concrete beam cable-stayed bridge according to the materials used by the beam, belongs to a high-order hyperstatic structure in mechanics, and is a most complex structure in all bridge types, the final stress state of the finished cable-stayed bridge is obviously different, the structures of the cable-stayed bridge are more and more along with the continuous development of the society, but when part of the tower beams of the cable-stayed bridge are used, the angle of the installed tower beams is not convenient to finely adjust according to the shape requirement of the bridge floor, the operation is time-consuming and labor-consuming, the application range of the tower beams is reduced, the levelness of the installed bridge floor can not be well guaranteed after the tower beams are installed, the accuracy of the installed bridge floor is reduced, and the safety of the cable-stayed bridge during the construction and use is reduced.
Disclosure of Invention
The invention aims to provide a cable-stayed bridge tower beam mounting structure which is convenient for adjusting the mounting angle of a tower beam, and the technical scheme is as follows:
cable-stay bridge tower roof beam mounting structure, including the roof beam body that base and set up on it, the roof beam body passes through angle adjusting device and rotates and install on the base to install height detection adjusting device at the top of the roof beam body, height adjusting device includes reflector panel, the laser lamp of going up and down the relative installation of both sides around and the supporting seat of installing on the roof beam body, and the reflector panel laminating is fixed at the back of supporting seat, and the laser lamp horizontal hunting is installed at the supporting seat in front.
Preferably, the angle adjusting device comprises a rotating seat, the bottom end of the beam body is connected with the rotating seat through a bolt, a fixed shaft is fixedly connected to the center of the bottom end of the rotating seat, a driven gear is fixedly connected to the outer side of the rotating seat, a driving gear is meshed and connected to the outer side of the driven gear, a rotating shaft is fixedly connected to the inner side of the driving gear, and the rotating shaft penetrates through the driving gear and the base.
Preferably, fixed axle outside fixedly connected with bearing, and bearing and base fixed connection rotate the base bottom edge and rotate and be connected with the ball, and the ball contacts with the base.
Preferably, the top end of the outer side of the rotating seat is fixedly connected with a sealing ring, the sealing ring is connected with the base in a sliding mode, and the sealing ring is made of a rubber plate.
Preferably, the top end of the outer side of the rotating shaft is rotatably connected with a protective frame, the protective frame is fixedly connected with the base through a connecting rod, and the left side of the top end of the protective frame is hinged with a shielding cover.
Preferably, the top end of the rotating shaft is fixedly connected with a worm wheel, the inner side of the protection frame is fixedly connected with a first motor, the tail end of a main shaft of the first motor is fixedly connected with a worm, the worm is meshed with the worm wheel and connected with the protection frame in a rotating mode.
Preferably, height detection adjusting device includes the fixed beam, the internal side of roof beam is equipped with the fixed beam, the inboard right-hand member fixedly connected with second motor of fixed beam, the terminal fixedly connected with two-way screw thread axle of main shaft of second motor, two-way screw thread axle outside screw connection has the slider, and slider and fixed beam sliding connection, the slider top is rotated through the pivot and is connected with the dwang, the other end of dwang is rotated through the pivot and is connected with the ejector pad, and the ejector pad runs through the roof beam body, ejector pad and roof beam body sliding connection, ejector pad top fixedly connected with supporting seat, and supporting seat and roof beam body sliding connection.
Preferably, the left side and the right side of the top end of the fixed beam are both spirally connected with positioning bolts, the positioning bolts penetrate through the fixed beam, and the positioning bolts are spirally connected with the beam body.
Preferably, the direction of the threads on the left side of the bidirectional threaded shaft is opposite to the direction of the threads on the right side of the bidirectional threaded shaft, the bidirectional threaded shaft is symmetrically arranged, and the bidirectional threaded shaft is rotatably connected with the fixed beam;
the inboard front end of supporting seat rotates and is connected with the carousel, and carousel front end fixedly connected with laser lamp, and the laser lamp outside rotates through the pivot and is connected with electric telescopic handle, and electric telescopic handle's the other end rotates through pivot and supporting seat to be connected, supporting seat rear end fixed connection reflector panel.
The invention also aims to provide a special space ectopic interaction construction method for the cable-stayed bridge tower beam installation structure, which adopts the following technical scheme:
and rotating the beam bodies of two adjacent cable-stayed bridge tower beams until the laser lamp on one cable-stayed bridge tower beam irradiates the reflector on the other cable-stayed bridge tower beam, and starting the construction of the bridge tower and the box girder simultaneously after the illumination intensity reaches the set brightness.
The invention has the beneficial effects that:
the invention realizes laser positioning in a mode that the laser lamps and the reflectors are respectively arranged on the two adjacent beam bodies, so that the laser positioning is compared with a preset box beam laying path, the precision of space ectopic interactive construction is improved, and the positioning mode also enables the angle adjustment of the tower beam to be more convenient in the installation process.
Furthermore, according to the tower beam installation device, the rotating seat, the driving gear and the worm wheel are arranged, when the tower beam installation device is used, the worm is driven to be meshed with the worm wheel by starting the first motor, at the moment, the rotating shaft can drive the driving gear to be meshed with the driven gear, so that the rotating seat is driven to rotate, when bridge floors of different shapes are built, the angle of the installed tower beam can be finely adjusted according to requirements, the operation is time-saving and labor-saving, and the application range of the tower beam is enlarged.
Furthermore, according to the invention, through the arrangement of the bidirectional threaded shaft, the rotating rod, the supporting seat and the laser lamp, when the device is used, the second motor is started to drive the bidirectional threaded shaft to rotate, so that the sliding block is continuously displaced, the rotating rod is continuously rotated, the supporting seat can be continuously pushed by the pushing block to ascend and descend, the auxiliary irradiation of the laser lamp is matched, and after the tower beam is installed, the height of the bridge deck supporting mechanism can be adjusted, so that the levelness of the bridge deck after installation is well ensured, the accuracy of the bridge deck after installation is ensured, and the safety of the cable-stayed bridge during building and use is improved.
Drawings
FIG. 1 is a schematic view of a cable-stayed bridge tower beam mounting structure according to the present invention;
FIG. 2 is a schematic view of the height detection adjustment mechanism of FIG. 1;
FIG. 3 is a top view of the support base of FIG. 1;
FIG. 4 is a schematic view of the turret of FIG. 1;
fig. 5 is a schematic view of the seal ring of fig. 1.
Detailed Description
Referring to fig. 1 to 5, a cable-stayed bridge tower beam mounting structure of the present invention comprises a beam body 1, an angle adjusting device 2, a height detecting and adjusting device 3 and a base 4, wherein the bottom end of the beam body 1 is provided with the angle adjusting device 2, the angle adjusting device 2 comprises a rotating base 201, the bottom end of the beam body 1 is connected with the rotating base 201 through a bolt, a fixed shaft 202 is fixedly connected to the center position of the bottom end of the rotating base 201, a bearing 203 is fixedly connected to the outer side of the fixed shaft 202, the bearing 203 is fixedly connected with the base 4, a ball 204 is rotatably connected to the bottom end edge of the rotating base 201, and the ball 204 is in contact with the base 4, the friction generated by the rotation of the rotating base 201 is reduced, a driven gear 205 is fixedly connected to the outer side of the rotating base 201, a driving gear 206 is engaged with the outer side of the driven gear 205, a sealing ring 207 is fixedly connected to the top end of the outer side of the rotating base 201, and the sealing ring 207 is slidably connected with the base 4, the sealing ring 207 is made of a rubber plate, the arrangement avoids the phenomenon that a large amount of foreign matters enter the inner side of the driving mechanism to increase abrasion to a certain extent, the inner side of the driving gear 206 is fixedly connected with a rotating shaft 208, the rotating shaft 208 penetrates through the driving gear 206 and the base 4, the top end of the outer side of the rotating shaft 208 is rotatably connected with a protective frame 209, the protective frame 209 is fixedly connected with the base 4 through a connecting rod, the left side of the top end of the protective frame 209 is hinged with a shielding cover 210, the arrangement facilitates the overhaul of the driving mechanism in the angle adjusting mechanism, the top end of the rotating shaft 208 is fixedly connected with a worm wheel 211, the inner side of the protective frame 209 is fixedly connected with a first motor 212, the tail end of a main shaft of the first motor 212 is fixedly connected with a worm 213, the worm 213 is meshed with the worm wheel 211, the worm 213 is rotatably connected with the protective frame 209, and the arrangement ensures the stability of the rotating seat 201 after rotation, the rotating shaft 208 is rotatably connected with the base 4, when the device is used for constructing bridge floors with different shapes, the angle of the tower beam after installation can be finely adjusted according to requirements, the operation is time-saving and labor-saving, so that the application range of the tower beam is enlarged, the height detection and adjustment device 3 is arranged on the inner side of the beam body 1 and comprises a fixed beam 301, the fixed beam 301 is arranged on the inner side of the beam body 1, the left side and the right side of the top end of the fixed beam 301 are both spirally connected with positioning bolts 302, the positioning bolts 302 penetrate through the fixed beam 301 and are spirally connected with the beam body 1, the arrangement facilitates the connection between the fixed beam 301 and the beam body 1, the right end of the inner side of the fixed beam 301 is fixedly connected with a second motor 303, the tail end of a main shaft of the second motor 303 is fixedly connected with a bidirectional threaded shaft 304, the direction of threads on the left side of the bidirectional threaded shaft 304 is opposite to the direction of threads on the right side of the bidirectional threaded shaft 304, the two-way threaded shaft 304 is symmetrically arranged, the two-way threaded shaft 304 is rotatably connected with the fixed beam 301, the arrangement ensures the stability of the support seat 308 when the left and right sliding blocks 305 are close to or away from each other by controlling the left and right sliding blocks 305, the sliding block 305 is spirally connected with the outer side of the two-way threaded shaft 304 and is slidably connected with the fixed beam 301, the top end of the sliding block 305 is rotatably connected with a rotating rod 306 by a rotating shaft, the other end of the rotating rod 306 is rotatably connected with a push block 307 by a rotating shaft, the push block 307 penetrates through the beam body 1, the push block 307 is slidably connected with the beam body 1, the top end of the push block 307 is fixedly connected with the support seat 308, the front end of the inner side of the support seat 308 is rotatably connected with a rotating disc 309, the front end of the rotating disc 309 is fixedly connected with a laser lamp 310, the outer side of the laser lamp 310 is rotatably connected with an electric telescopic rod 311 by a rotating shaft, the other end of the electric telescopic rod 311 is rotatably connected with the support seat 308 by a rotating shaft, the rear end of the support seat 308 is fixedly connected with a reflecting plate 312, the arrangement facilitates automatic detection of the height difference between the adjacent supporting seats 308, so that the height of the supporting seats 308 can be conveniently adjusted, the supporting seats 308 are connected with the beam body 1 in a sliding manner, the arrangement can adjust the height of the bridge deck supporting mechanism after the tower beam is installed, so that the levelness of the bridge deck after installation is well guaranteed, the precision of the bridge deck after installation is guaranteed, the safety of the cable-stayed bridge during building and use is improved, and the base 4 is arranged at the bottom end of the angle adjusting device 2.
The working process is as follows: all electrical appliances in the device are external power supplies, when the device is used, the device is constructed and installed at a specified position, when the angle of the beam body 1 needs to be adjusted in the process of constructing the beam body 1, the first motor 212 is started through an external control mechanism, then the worm 213 is driven to continuously engage the worm wheel 211, the rotating shaft 208 continuously rotates at the moment, and the driving gear 206 is continuously driven to be engaged with the driven gear 205, so that the rotating seat 201 is driven to rotate, because the bearing 203 is fixed on the outer side of the fixed shaft 202 at the bottom end of the rotating seat 201, and the ball 204 rotates at the bottom end edge of the rotating seat 201, large friction cannot be generated when the rotating seat 201 rotates, when the angle adjustment of the beam body 1 is completed, subsequent construction is continuously performed, when the driving mechanism of the angle adjusting mechanism is damaged and needs to be overhauled, the device moves to the side of the driving mechanism through the protection frame 209, then the shielding cover 210 is opened to overhaul the device, the operation is simple and convenient, when the bridge deck is erected, the laser lamp 310 is started first, then the electric telescopic rod 311 is controlled to stretch continuously, the rotary disc 309 continuously drives the laser lamp 210 to rotate on the horizontal plane, whether the laser lamp 310 can shine on the reflector 312 outside the adjacent supporting seat 308 is observed, when the laser lamp cannot shine, the height difference exists between the adjacent supporting seats 308 is explained, at the moment, the second motor 303 is started through an external control mechanism to drive the two-way threaded shaft 304 to rotate, because the thread direction on the left side of the two-way threaded shaft 304 is opposite to that on the right side, the two sliding blocks 305 can be far away from or close to each other, the rotating rod 306 can rotate, the supporting seat 308 is continuously driven to lift through the push block 307, when the laser lamp 310 can shine on the reflector 312 outside the adjacent supporting seat 308, and finally, paving the bridge deck.
The above description is only about the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may be modified in other structures, not limited to the above structures. In general, all changes which come within the scope of the invention are intended to be embraced therein.
Claims (10)
1. Cable-stay bridge tower roof beam mounting structure, including the roof beam body that base and it set up, its characterized in that, the roof beam body passes through angle adjusting device and rotates and install on the base to install height detection adjusting device at the top of the roof beam body, height adjusting device includes reflector panel, the laser lamp of lift installation supporting seat on the roof beam body and front and back both sides relative installation, and the reflector panel laminating is fixed at the back of supporting seat, and the laser lamp horizontal hunting is installed at the supporting seat in front.
2. The installation structure of a tower beam of a cable-stayed bridge according to claim 1, wherein the angle adjusting device comprises a rotating base, the bottom end of the beam body is connected with the rotating base through a bolt, a fixed shaft is fixedly connected to the center position of the bottom end of the rotating base, a driven gear is fixedly connected to the outer side of the rotating base, a driving gear is meshed and connected to the outer side of the driven gear, a rotating shaft is fixedly connected to the inner side of the driving gear, and the rotating shaft penetrates through the driving gear and the base.
3. The tower beam mounting structure for cable-stayed bridges according to claim 2, wherein a bearing is fixedly connected to the outer side of the fixed shaft and fixedly connected to the base, and a ball is rotatably connected to the edge of the bottom end of the rotating seat and contacts the base.
4. The cable-stayed bridge tower beam installation structure according to claim 2, wherein a seal ring is fixedly connected to the top end of the outer side of the rotating seat and is slidably connected with the base, and the seal ring is made of a rubber plate.
5. The cable-stayed bridge tower beam installation structure as claimed in claim 2, wherein the top end of the outer side of the rotating shaft is rotatably connected with a protection frame, the protection frame is fixedly connected with the base through a connecting rod, and the left side of the top end of the protection frame is hinged with a shielding cover.
6. The cable-stayed bridge tower beam installation structure according to claim 5, wherein a worm wheel is fixedly connected to the top end of the rotating shaft, a first motor is fixedly connected to the inner side of the protection frame, a worm is fixedly connected to the tail end of a main shaft of the first motor, the worm is meshed with the worm wheel and is rotatably connected with the protection frame.
7. The cable-stayed bridge tower beam installation structure according to any one of claims 1 to 6, wherein the height detection and adjustment device comprises a fixed beam, the fixed beam is arranged on the inner side of the beam body, a second motor is fixedly connected to the right end of the inner side of the fixed beam, a bidirectional threaded shaft is fixedly connected to the end of a main shaft of the second motor, a sliding block is spirally connected to the outer side of the bidirectional threaded shaft and is slidably connected with the fixed beam, a rotating rod is rotatably connected to the top end of the sliding block through a rotating shaft, a pushing block is rotatably connected to the other end of the rotating rod through a rotating shaft and penetrates through the beam body, the pushing block is slidably connected with the beam body, a supporting seat is fixedly connected to the top end of the pushing block, and the supporting seat is slidably connected with the beam body.
8. The cable-stayed bridge tower beam installation structure according to claim 7, wherein positioning bolts are spirally connected to the left side and the right side of the top end of the fixed beam, penetrate through the fixed beam and are spirally connected with the beam body.
9. The cable-stayed bridge tower beam installation structure as claimed in claim 7, wherein the direction of the threads on the left side of the bidirectional threaded shaft is opposite to the direction of the threads on the right side of the bidirectional threaded shaft, the bidirectional threaded shaft is symmetrically arranged, and the bidirectional threaded shaft is rotatably connected with the fixed beam;
the inboard front end of supporting seat rotates and is connected with the carousel, and carousel front end fixedly connected with laser lamp, and the laser lamp outside rotates through the pivot and is connected with electric telescopic handle, and electric telescopic handle's the other end rotates through pivot and supporting seat to be connected, supporting seat rear end fixed connection reflector panel.
10. A special space ex-situ interactive construction method for a tower beam installation structure of a cable-stayed bridge according to any one of claims 1 to 9, wherein beam bodies of two adjacent tower beams of the cable-stayed bridge are rotated until a laser lamp on one tower beam of the cable-stayed bridge irradiates a reflector on the other tower beam of the cable-stayed bridge and the construction of a bridge tower and a box beam is started simultaneously after the illumination intensity reaches a set brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423434.9A CN114108475B (en) | 2021-11-26 | 2021-11-26 | Cable-stayed bridge tower beam installation structure and space-ectopic interactive construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423434.9A CN114108475B (en) | 2021-11-26 | 2021-11-26 | Cable-stayed bridge tower beam installation structure and space-ectopic interactive construction method thereof |
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| Publication Number | Publication Date |
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| CN114108475A true CN114108475A (en) | 2022-03-01 |
| CN114108475B CN114108475B (en) | 2023-09-22 |
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| CN202111423434.9A Active CN114108475B (en) | 2021-11-26 | 2021-11-26 | Cable-stayed bridge tower beam installation structure and space-ectopic interactive construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934435A (en) * | 2022-06-29 | 2022-08-23 | 单宝玉 | Portable and detachable military and civil dual-purpose bridge structure and building method |
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| CN113106837A (en) * | 2021-04-02 | 2021-07-13 | 长安大学 | Combined box girder wing plate hanging and pouring device capable of adjusting inhaul cable system and construction method |
| CN113322820A (en) * | 2021-06-02 | 2021-08-31 | 五冶集团上海有限公司 | Construction method and assembly method for steel cross beam of cable-stayed bridge cable tower |
| CN113322816A (en) * | 2021-05-23 | 2021-08-31 | 中铁九桥工程有限公司 | Multi-interface beam tower matching precision control method and device |
| CN214530199U (en) * | 2021-02-19 | 2021-10-29 | 中电建路桥集团有限公司 | Tower beam consolidation structure of large-span cable-stayed bridge |
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| JP2000227333A (en) * | 1999-02-04 | 2000-08-15 | Ishikawajima Harima Heavy Ind Co Ltd | Shape measuring instrument for bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934435A (en) * | 2022-06-29 | 2022-08-23 | 单宝玉 | Portable and detachable military and civil dual-purpose bridge structure and building method |
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| Publication number | Publication date |
|---|---|
| CN114108475B (en) | 2023-09-22 |
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