CN112458903A - Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device - Google Patents
Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device Download PDFInfo
- Publication number
- CN112458903A CN112458903A CN202011226609.2A CN202011226609A CN112458903A CN 112458903 A CN112458903 A CN 112458903A CN 202011226609 A CN202011226609 A CN 202011226609A CN 112458903 A CN112458903 A CN 112458903A
- Authority
- CN
- China
- Prior art keywords
- steering
- corrugated steel
- box girder
- steel web
- steering support
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Abstract
The invention belongs to the technical field of external prestressed box girder bridges, and particularly relates to centralized transfer equipment of a steering device of a corrugated steel web external prestressed box girder bridge, which comprises a main girder and corrugated steel webs arranged on the front and rear side walls of the main girder, wherein a steering mechanism is arranged at the bottom of the main girder and positioned at the lower side of the corrugated steel webs, a prestressed stay cable is arranged in the steering mechanism, the steering mechanism comprises an upper mounting plate, a locking mechanism, a lower connecting screw rod, a steering support ring and a steering support wheel, the two sides of the upper mounting plate are respectively provided with the locking mechanism, the upper mounting plate is fixedly connected with the lower surface of the main girder through the locking mechanism, the upper mounting plate comprises a support plate and a lower connecting ring, and the two sides of. The main beam can be connected and fastened through the matching action among the support plate, the connecting screw hole, the embedded positioning block, the connecting bolt and the expansion threaded sleeve; through the cooperation between connecting screw rod, lock nut and the lower clamping ring down, can realize vertical altitude mixture control's effect.
Description
Technical Field
The invention relates to the technical field of external prestressed box girder bridges, in particular to centralized transfer equipment of a steering device of a corrugated steel web external prestressed box girder bridge.
Background
The box-section beam bridge refers to a beam bridge with a main beam in a thin-wall closed section form. Long hollow trusses made of steel or concrete are usually used as beams. This makes the bridge light and strong. The bridge constructed by this method is called a box girder bridge. The corrugated steel web prestressed concrete box girder bridge is also called a corrugated steel web PC bridge, and is a box girder using a corrugated steel plate to replace a concrete web of a prestressed concrete box girder as a web, and is characterized in that a steel plate with the thickness of 10-20 mm is used to replace a concrete web with the thickness of 30-80 cm.
When prestressing force is added to the bridge, fixed, the other end pulling with prestressing force zip fastener one end usually for bridge deformation produces prestressing force, and the intermediate position supports through turning to the device, and the current device that turns to operates inconveniently in the aspect of altitude mixture control, makes the prestressing force of bridge be difficult to obtain the adjustment, and improper to the prestressing force zip fastener protection.
Disclosure of Invention
The invention aims to provide centralized transfer equipment for a steering device of a corrugated steel web external prestressed box girder bridge, and aims to solve the problems that the conventional steering device in the background art is inconvenient to operate in the aspect of height adjustment, so that the prestress of the bridge is difficult to adjust, and the prestress zipper is not protected properly.
In order to achieve the purpose, the invention provides the following technical scheme: a centralized transfer device of a corrugated steel web external prestress box girder bridge steering device comprises a main girder and corrugated steel webs arranged on the front and rear side walls of the main girder, wherein a steering mechanism is arranged at the bottom of the main girder and at the lower side of the corrugated steel webs, a prestress stay cable is arranged in the steering mechanism, the steering mechanism comprises an upper mounting plate, a locking mechanism, a lower connecting screw rod, a steering support ring and a steering support wheel, the locking mechanism is arranged on each of two sides of the upper mounting plate, the upper mounting plate is fixedly connected with the lower surface of the main girder through the locking mechanism, the upper mounting plate comprises a support plate and a lower connecting ring, connecting holes are formed in two sides of the support plate, the locking mechanism is connected with the support plate through the connecting holes, a connecting screw hole is formed in the middle of the lower connecting ring, the lower connecting screw rod is screwed in the connecting screw hole, the two locking nuts are respectively positioned on the upper side and the lower side of the connecting screw hole, the bottom end of the lower connecting screw rod is fixedly connected with the upper surface of the steering support ring, the steering support ring is rotatably connected with a steering support wheel through a rotating shaft, and the prestressed stay cable is inserted into the steering support ring and supported on the lower surface of the steering support wheel.
Preferably, the prestressed cable is a braided steel cable or a steel plate cable.
Preferably, locking mechanical system includes inflation swivel nut and connecting bolt, the inflation swivel nut is pre-buried to the girder lower surface, connecting bolt pegs graft in the both sides of last mounting panel, it is connected with the inflation swivel nut through connecting bolt to go up the mounting panel, realizes the fastening.
Preferably, the upper surface of extension board is provided with the embedding locating piece, embedding locating piece and extension board integrated into one piece, the connecting hole also runs through the embedding locating piece, the constant head tank with embedding locating piece looks adaptation is seted up to the lower surface of girder.
Preferably, when the prestressed inhaul cable is a braided steel cable, the outer wall of the steering support wheel is concave; when the prestressed inhaul cable is a steel plate inhaul cable, the outer wall of the steering supporting wheel is straight.
Preferably, the number of the steering support rings corresponds to that of the steering support wheels one by one, and the number of the steering support rings is not less than one, and the steering support wheels are linked through rotating shafts.
Compared with the prior art, the invention has the beneficial effects that:
1) the main beam can be connected and fastened through the matching action among the support plate, the connecting screw hole, the embedded positioning block, the connecting bolt and the expansion threaded sleeve;
2) through the cooperation between connecting screw rod, lock nut and the lower clamping ring down, can realize vertical altitude mixture control's effect.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic structural view of the steering mechanism of the present invention;
FIG. 3 is a side view of the steering support ring, spindle, and steering support wheel of the present invention;
fig. 4 is a schematic structural diagram of the upper mounting plate of the present invention.
In the figure: the main beam 1, the prestressed cable 2, the steering mechanism 3, the upper mounting plate 31, the support plate 311, the lower connecting ring 312, the connecting screw hole 313, the embedded positioning block 314, the connecting hole 315, the connecting bolt 32, the expansion threaded sleeve 33, the lower connecting screw 34, the steering support ring 35, the locking nut 36, the rotating shaft 37 and the steering support wheel 38.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-4, the present invention provides a technical solution: a centralized transfer device of a steering device of a corrugated steel web external prestressed box girder bridge comprises a main girder 1 and corrugated steel webs arranged on the front and rear side walls of the main girder 1;
the main beam 1 and the corrugated steel web are connected in advance;
a steering mechanism 3 is arranged at the bottom of the main beam 1 and on the lower side of the corrugated steel web, and a prestressed inhaul cable 2 is arranged in the steering mechanism 3;
one end of a prestressed cable 2 is fixed at the bottom of a main beam 1, the other end of the prestressed cable 2 moves and pulls the prestressed cable 2 through pulling equipment (such as a hydraulic cylinder and the like), the movement of the prestressed cable 2 is tensioned, and the middle section of the prestressed cable 2 pushes the main beam 1 upwards through the support of a steering mechanism 3, so that the main beam 1 deforms, and the external prestressed effect is achieved;
the steering mechanism 3 comprises an upper mounting plate 31, a locking mechanism, a lower connecting screw rod 34, a steering support ring 35 and a steering support wheel 38, wherein the locking mechanism is arranged on both sides of the upper mounting plate 31, the upper mounting plate 31 is fixedly connected with the lower surface of the main beam 1 through the locking mechanism, the upper mounting plate 31 comprises a support plate 311 and a lower connecting ring 312, connecting holes 315 are formed in both sides of the support plate 311, the locking mechanism is connected with the support plate 311 through the connecting holes 315, a connecting screw hole 313 is formed in the middle of the lower connecting ring 312, the lower connecting screw rod 34 is screwed in the connecting screw hole 313, two locking nuts 36 are arranged on the outer wall of the lower connecting screw rod 34, the two locking nuts 36 are respectively positioned on the upper side and the lower side of the connecting screw hole 313, the bottom end of the lower connecting screw rod 34 is fixedly connected with the upper surface of the steering support ring 35, and the steering support wheel, the prestressed cable 2 is inserted into the steering support ring 35 and supported on the lower surface of the steering support wheel 38.
Further, the prestressed cable 3 is a braided steel cable or a steel plate cable.
Further, locking mechanical system includes inflation swivel nut 33 and connecting bolt 32, inflation swivel nut 33 is pre-buried to girder 1 lower surface, connecting bolt 32 pegs graft in the both sides of last mounting panel 31, it is connected with inflation swivel nut 33 through connecting bolt 32 to go up mounting panel 31, realizes the fastening.
Further, an embedded positioning block 314 is arranged on the upper surface of the support plate 311, the embedded positioning block 314 and the support plate 311 are integrally formed, the connecting hole 315 also penetrates through the embedded positioning block 314, and a positioning groove matched with the embedded positioning block 314 is formed in the lower surface of the main beam 1.
Further, when the prestressed cable 3 is a braided steel cable, the outer wall of the steering support wheel 38 is concave; when the prestressed cable 3 is a steel plate cable, the outer wall of the steering support wheel 38 is straight.
Furthermore, the number of the steering support rings 35 corresponds to that of the steering support wheels 38, and the number of the steering support rings is not less than one, and the steering support wheels 38 are linked through the rotating shaft 37.
The working principle is as follows: the lower surface of the main beam 1 is drilled in advance through a percussion drill, so that the drilling position corresponds to the position of the connecting bolt 32, the grooving machine is used for grooving, so that the size of the grooved groove is matched with that of the embedded positioning block 314, and the positions of the grooved groove and the drilling hole correspond to the embedded positioning block 314 and the connecting hole 315;
insert expansion swivel nut 33 in the drilling, insert connecting bolt 32 in the connecting hole 315, and connecting bolt 32 and expansion swivel nut 33 spiro union, make in embedding locating piece 314 embedded groove, the realization is fixed to the connection of last mounting panel 31, adjust the height of connecting screw 34 relative lower clamping ring 312 under the demand of using, can adjust the height that turns to retainer plate 35 and turn to supporting wheel 38, after adjusting the position, fasten lock nut 36, make connecting screw 34 relative lower steering retainer plate 35 fixed, the not hard up condition can not appear.
The position of the steering support wheel 38 is adjusted so that the support point of the prestressed stay 2 is adjusted, thereby being applicable to different use cases.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a wave form steel web external prestressing force box girder bridge turns to concentrated transfer equipment of device, includes girder (1) and sets up the wave form steel web of lateral wall around girder (1), its characterized in that: the bottom of the main beam (1) is provided with a steering mechanism (3) at the lower side of the corrugated steel web plate, a prestressed inhaul cable (2) is arranged in the steering mechanism (3), the steering mechanism (3) comprises an upper mounting plate (31), a locking mechanism, a lower connecting screw rod (34), a steering support ring (35) and a steering support wheel (38), the two sides of the upper mounting plate (31) are respectively provided with the locking mechanism, the upper mounting plate (31) is fixedly connected with the lower surface of the main beam (1) through the locking mechanism, the upper mounting plate (31) comprises a support plate (311) and a lower connecting ring (312), the two sides of the support plate (311) are provided with connecting holes (315), the locking mechanism is connected with the support plate (311) through the connecting holes (315), the middle part of the lower connecting ring (312) is provided with a connecting screw hole (313), the lower connecting screw rod (34) is in threaded connection, and the outer wall of the lower connecting screw rod (34) is provided with two locking nuts (36), the two locking nuts (36) are respectively positioned at the upper side and the lower side of the connecting screw hole (313), the bottom end of the lower connecting screw rod (34) is fixedly connected with the upper surface of the steering support ring (35), the steering support ring (35) is rotatably connected with a steering support wheel (38) through a rotating shaft (37), and the prestress inhaul cable (2) is inserted in the steering support ring (35) and supported on the lower surface of the steering support wheel (38).
2. The centralized transfer equipment of the corrugated steel web external prestressed box girder bridge steering device according to claim 1, wherein: the prestressed inhaul cable (3) is a braided steel cable or a steel plate inhaul cable.
3. The centralized transfer equipment of the corrugated steel web external prestressed box girder bridge steering device according to claim 1, wherein: locking mechanical system includes inflation swivel nut (33) and connecting bolt (32), inflation swivel nut (33) are pre-buried to girder (1) lower surface, connecting bolt (32) are pegged graft in the both sides of last mounting panel (31), it is connected with inflation swivel nut (33) through connecting bolt (32) to go up mounting panel (31), realizes the fastening.
4. The centralized transfer equipment of the corrugated steel web external prestressed box girder bridge steering device according to claim 1, wherein: the upper surface of the support plate (311) is provided with an embedded positioning block (314), the embedded positioning block (314) and the support plate (311) are integrally formed, the connecting hole (315) also penetrates through the embedded positioning block (314), and the lower surface of the main beam (1) is provided with a positioning groove matched with the embedded positioning block (314).
5. The centralized transfer equipment of the corrugated steel web external prestressed box girder bridge steering device according to claim 2, wherein: when the prestressed inhaul cable (3) is a braided steel cable, the outer wall of the steering support wheel (38) is concave; when the prestressed inhaul cable (3) is a steel plate inhaul cable, the outer wall of the steering supporting wheel (38) is straight.
6. The centralized transfer equipment of the corrugated steel web external prestressed box girder bridge steering device according to claim 1, wherein: the number of the steering support rings (35) is in one-to-one correspondence with that of the steering support wheels (38), and the number of the steering support rings is not less than one, and the steering support wheels (38) are linked through a rotating shaft (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011226609.2A CN112458903A (en) | 2020-11-05 | 2020-11-05 | Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011226609.2A CN112458903A (en) | 2020-11-05 | 2020-11-05 | Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112458903A true CN112458903A (en) | 2021-03-09 |
Family
ID=74825036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011226609.2A Pending CN112458903A (en) | 2020-11-05 | 2020-11-05 | Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112458903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680314A (en) * | 2022-11-08 | 2023-02-03 | 中建八局第二建设有限公司 | Steel beam external prestressed tendon reinforced steering block and reinforcing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110088865A (en) * | 2010-01-29 | 2011-08-04 | 경북대학교 산학협력단 | Repairing and reinforcing apparatus for slab and repairing and reinforcing method thereof |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN204299206U (en) * | 2014-12-10 | 2015-04-29 | 内蒙古科技大学 | A kind of height-adjustable external prestressing steering block |
| CN109797984A (en) * | 2019-03-22 | 2019-05-24 | 东南大学 | A kind of multi-purpose transfer of the external prestressing steels of variable curvature |
| CN111622133A (en) * | 2020-05-20 | 2020-09-04 | 中国国家铁路集团有限公司 | Bridge external pre-tightening force reinforcing system and mounting method thereof |
| CN111676841A (en) * | 2020-06-23 | 2020-09-18 | 华中科技大学 | Anti-cable-falling external prestressed cable steering gear |
-
2020
- 2020-11-05 CN CN202011226609.2A patent/CN112458903A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110088865A (en) * | 2010-01-29 | 2011-08-04 | 경북대학교 산학협력단 | Repairing and reinforcing apparatus for slab and repairing and reinforcing method thereof |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN204299206U (en) * | 2014-12-10 | 2015-04-29 | 内蒙古科技大学 | A kind of height-adjustable external prestressing steering block |
| CN109797984A (en) * | 2019-03-22 | 2019-05-24 | 东南大学 | A kind of multi-purpose transfer of the external prestressing steels of variable curvature |
| CN111622133A (en) * | 2020-05-20 | 2020-09-04 | 中国国家铁路集团有限公司 | Bridge external pre-tightening force reinforcing system and mounting method thereof |
| CN111676841A (en) * | 2020-06-23 | 2020-09-18 | 华中科技大学 | Anti-cable-falling external prestressed cable steering gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680314A (en) * | 2022-11-08 | 2023-02-03 | 中建八局第二建设有限公司 | Steel beam external prestressed tendon reinforced steering block and reinforcing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112458903A (en) | Centralized transfer equipment of corrugated steel web external prestress box girder bridge steering device | |
| CN112901077B (en) | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling | |
| CN112096038A (en) | Angle-adjustable cantilever beam assembly for external scaffold | |
| CN106677505A (en) | Adjustable steel tube supporting piece and installation method thereof | |
| CN212295106U (en) | H-shaped steel connecting structure | |
| CN111305597A (en) | Building template supporting system and installation method thereof | |
| CN114893005B (en) | Positioning mechanism for assembled wall member and construction method | |
| CN210597323U (en) | Deep foundation pit supporting structure | |
| CN220686725U (en) | Quick assembly disassembly fixed bolster structure | |
| CN203201089U (en) | Wall body horizontal fixation connecting part | |
| CN105880686A (en) | Hole processing mechanism | |
| CN206607826U (en) | A kind of adjustable steel tube support member | |
| CN100419166C (en) | Joint device and method using female and male arc end temper screw | |
| CN219365497U (en) | Installation adjustment mechanism of prefabricated component of assembled | |
| CN115949183B (en) | Bearing beam structure is built in room | |
| CN114046039B (en) | Template reinforcing structure at joint of wall and construction method thereof | |
| CN219261960U (en) | Guardrail structure with adjustable construction is with | |
| CN212802721U (en) | A coincide roof beam strutting arrangement for prefabricated building | |
| CN2389914Y (en) | Rail beam bearing | |
| CN216839916U (en) | Accurate fixing device of pre-buried case of residential building wall body | |
| CN217028063U (en) | Device for supporting truss plate in steel structure | |
| CN219060898U (en) | Template support adjusting device for circular arc step | |
| CN220451784U (en) | Drilling device capable of improving accuracy | |
| CN216465428U (en) | Drilling location auxiliary device for civil engineering | |
| CN217267082U (en) | Adjustable limit for height pole of highway engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |