CN116377888A - Adjustable flange template device of cast-in-situ beam of cable-stayed bridge and construction process - Google Patents
Adjustable flange template device of cast-in-situ beam of cable-stayed bridge and construction process Download PDFInfo
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- CN116377888A CN116377888A CN202310558351.3A CN202310558351A CN116377888A CN 116377888 A CN116377888 A CN 116377888A CN 202310558351 A CN202310558351 A CN 202310558351A CN 116377888 A CN116377888 A CN 116377888A
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 238000009415 formwork Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
-
- 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
-
- 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
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
Abstract
The invention relates to an adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge and a construction process, the adjustable flange template device comprises a construction hanging basket, the construction hanging basket comprises a plurality of main beams, a front beam and a rear beam which are arranged on a bridge main body, the front beam is arranged at the front end of the main beams, the outer sides of the rear beams are connected with hanging legs through bolts, the beams of the hanging legs bear a flange top support, a transverse support, a walking roller and an outer mold lower support arranged below the transverse support, a cast-in-situ beam outer mold back frame on one side of the bridge main body is provided with the flange top support, the transverse support, the walking roller and the outer mold lower support, the rolling wheel of the walking roller is connected to the lower part of the flange top support through adjusting screws, and the rolling wheel and the sliding of the transverse supportThe rail is in sliding connection. The invention realizes the arbitrary adjustment of the flange template, is convenient for the template to be completely separated from the concrete surface, is more convenient for the use of the flange plate provided with the cross beam, achieves the purpose of realizing the forward movement of the template without disassembly, shortens the construction period and improves the construction efficiency 。
Description
Technical Field
The invention relates to the technical field of bridge flange plate construction templates, in particular to an adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge and a construction process.
Background
In bridge engineering construction, the cast-in-place concrete box girder is one of the most widely applied girder and slab types, and has the characteristics of good durability, high torsional strength, mature construction process and the like. In order to better improve the stress structure of the bridge and increase the span of the bridge, the novel beam slab type of the prestressed concrete cable-stayed bridge is greatly applied.
In the construction of prestressed concrete cable-stayed bridge, when pouring concrete, often adopt many sets of steel forms simultaneously, pour simultaneously after the installation, lead to the installation dismantlement cycle overlength of steel form, influence construction period, in addition, among the traditional construction technology, the setting of steel form relies on a large amount of supporting structures and template equipment, and the template supporting structure is dismantled in the repeated circulation installation, and construction cycle is long, and the efficiency of construction is low.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme: the construction hanging basket comprises a plurality of main beams, a front beam and a rear beam which are arranged on a bridge main body, wherein the front beam is arranged at the front end of the main beam, the outer side of the rear beam is connected with hanging legs through bolts, the hanging legs are vertically and downwards arranged, and the beams of the hanging legs bear a flange top support, a transverse moving support, a walking roller and an outer mold lower support which is arranged below the transverse moving support;
the cast-in-situ beam outer mold back frame at one side of the bridge main body is provided with a flange top support, a transverse support, a traveling roller and an outer mold lower support arranged below the transverse support, the traveling roller is connected to the lower part of the flange top support through an adjusting screw rod, and the traveling roller is in sliding connection with a sliding rail of the transverse support;
the outer side of the front cross beam is connected with the transverse moving bracket through a hanging strip.
The construction hanging basket is a bearing device of a flange template, a plurality of girders are arranged, three girders are arranged, front cross beams are arranged on the upper parts of the three girders, rear cross beams are arranged at the upper rear ends of the two girders, a hanging strip is arranged on one side of the front cross beams, which extends the bridge main body, the lower part of the hanging strip is connected with a transverse moving support, a flange top support is arranged above the transverse moving support, the flange top support is used for propping up and supporting the flange template, an outer mold lower support is arranged below the transverse moving support, and the outer mold lower support is arranged at the lower part of the bridge main body through connecting pieces such as bolts and the like and is used for supporting an outer side template below the flange template;
the horizontal moving support is provided with a sliding rail, the rolling wheel of the walking roller can slide outwards on the sliding rail, threads are respectively arranged at two ends of the adjusting screw, the two ends of the adjusting screw are respectively connected with the rolling wheel and the flange top support in a threaded manner, after the flange plate with the beam is cast in situ to finish concrete, a lever is inserted into a central hole of the adjusting screw, the adjusting screw is rotated to reduce the effect of the flange template, the outer roller descends, the flange template is separated from the concrete, and then the flange template support is horizontally moved out by a guide chain to finish movement, so that the outer mold can be moved forward, and the next section is constructed.
The device realizes the arbitrary adjustment of the flange template, is convenient for the template to be completely separated from the concrete surface, is more convenient for the use of the flange plate provided with the cross beam, and achieves the purpose of realizing the forward movement of the template without disassembly.
Preferably, the walking roller comprises a roller seat, a first threaded hole is formed in the upper end of the roller seat, the lower end of the adjusting screw rod is connected in the first threaded hole in a threaded mode, a back-buckling screw rod is arranged on a side plate of the roller seat, and the back-buckling screw rod is arranged below the sliding rail.
The back-buckling screw is in threaded connection with the side plate, and the back-buckling screw extends inwards for a certain length and is used for avoiding the running roller and the flange top support from overturning in the moving process, so that the safety and stability of the whole construction process are ensured.
Preferably, an upper steel plate is arranged at the lower part of the flange top support, a second threaded hole corresponding to the first threaded hole is formed in the upper steel plate, and the upper end of the adjusting screw rod is in threaded connection with the second threaded hole.
Preferably, a guide chain is arranged on the outer side of the flange top support and connected with the bottom of the flange top support.
Preferably, the traversing support further comprises a triangular support, and the lower part of the triangular support is connected with the lower support of the outer mold.
Preferably, external threads are respectively arranged at two ends of the adjustable screw rod, a through hole is formed in the middle of the adjustable screw rod, and an adjusting rod is arranged in the through hole.
The construction process of the adjustable flange template device of the cast-in-situ beam of the cable-stayed bridge comprises the following steps of:
s1, when a standard beam section is constructed, assembling a movable flange outer die system, and respectively assembling a flange template, a transverse support, an outer die lower support, an extension tripod, a roller seat and a triangular support on a construction site;
s2, sequentially assembling a flange plate top support, an upper and lower adjustable screw rod, a rolling wheel, a bottom back-buckling screw rod and a lower support assembly template system with an extension triangular support according to the main structure size, adjusting the height of the rolling wheel through the adjustable screw rod after installing a flange template and the support, ensuring the top flange to be horizontal and the top flange to be right in angle, reinforcing all support panels, and carrying out subsequent process construction after welding or bolting firmly, so that the concrete pouring condition is finally met;
s3, finishing construction of a standard beam section, performing construction of the beam section with the stay cable tooth blocks, after finishing construction, performing demolding operation, and after the whole formwork falls off from concrete, firstly, lowering the rolling wheel screw shaft by using a short reinforcing bar, and simultaneously ensuring that the lowering height of an outer side roller is greater than that of an inner side roller, so that the flange formwork is in an outward tilting state;
s4, pushing out the template by using a rolling wheel, enabling the inner side surface of the flange template to be positioned at the outer side of the tooth block of the cable-stayed bridge, and fixing the flange template with a bracket at the lower part of the outer mold by using a back-buckling screw rod to prevent the template from moving randomly when moving forwards;
s5, the outside template system can be moved forward;
s6, after the outer die descending flange template transversely moves to the outer side, the outer die system and the hanging basket simultaneously move forward to the two ends of the next cantilever for construction operation.
Compared with the prior art, the invention has the beneficial effects that:
after the concrete is poured on site on the flange plate with the cross beam, firstly, the template system is lowered, then a lever is inserted into the center hole of the adjusting screw rod, the adjusting screw rod is rotated to achieve the effect of reducing the flange template, the flange template is separated from the concrete, then the flange template support is transversely moved out by a guide chain to complete movement, the outer die can be moved forward, the next section is constructed, the optional adjustment of the flange template is realized, the template is conveniently and completely separated from the concrete surface, the flange plate with the cross beam is more convenient to use, the purpose of moving forward the template can be achieved without disassembly, the construction period is shortened, and the construction efficiency is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic installation view of the structure of the top support of the flange, the traversing support, the walking roller and the lower support of the outer mold;
FIG. 4 is a schematic diagram of the structure of the walking roller of the present invention;
fig. 5 is a left side view of fig. 4 in accordance with the present invention.
The reference numbers shown in the drawings: 1. a flange top bracket; 2. a traversing support; 3. a lower bracket of the outer mold; 4. a bridge body; 5. a roller seat; 501. a rolling wheel; 502. a first threaded hole; 6. reversely buckling the screw rod; 7. a steel plate is arranged; 701. a second threaded hole; 8. triangular support; 9. an adjustable screw rod; 901. a through hole; 10. a flange template; 11. a front cross member; 12. a rear cross member; 13. a hanging belt; 14. hanging legs; 15 main beams.
Detailed Description
The invention is further illustrated below with reference to specific embodiments, as shown in fig. 1 to 5, an adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge comprises a construction hanging basket, wherein the construction hanging basket comprises three main beams 15 arranged on a bridge main body 4, and a front cross beam 11 and a rear cross beam 12 arranged between the main beams 15; the cast-in-situ beam outer mold back frames on two sides of the bridge main body 4 are respectively provided with a flange top support 1, a transverse support 2, a walking roller and an outer mold lower support 3 arranged below the transverse support 2, the walking roller is provided with a plurality of groups of rolling wheels 501, the rolling wheels 501 are connected to the lower part of the flange top support 1 through adjusting screws, the transverse support 2 is provided with a sliding rail, the rolling wheels 501 of the walking roller are matched with the sliding rail, and the rolling wheels 501 of the walking roller can slide outwards on the sliding rail.
The front cross beam 11 is arranged at the front end of the main beam 15, the rear cross beam 12 is arranged at the rear side of the main beam 15, the front cross beam 11 is connected with the transverse moving support 2 in a hanging mode through the hanging belt 13, the outer side of the rear cross beam 12 is connected with the hanging leg 14 through a bolt, the hanging leg 14 is vertically downwards arranged, and the cross beam of the hanging leg 14 bears the flange top support 1, the transverse moving support 2, the walking roller and the outer mold lower support 3 arranged below the transverse moving support.
The construction hanging basket is the load-bearing device of flange template 10, and girder 15 is provided with a plurality ofly, and this application is provided with three, and wherein three girder 15 upper portion front end has taken front beam 11, and the rear end is provided with rear beam 12 in the girder 15.
The traversing support 2 further comprises a triangular support 8, the triangular support 8 plays roles in supporting and stabilizing, the lower part of the triangular support 8 is welded with the outer die lower support 3, the flange top support 1 is used for propping up the support flange template 10, the outer die lower support 3 is arranged below the traversing support 2, the outer die lower support 3 is fixed with the bridge main body 4 through connecting pieces such as a counter-pulling screw and the like, and the outer side template below the support flange template 10 is used for supporting the outer side template below the flange template 10 during construction of the bridge main body 4.
External threads are respectively arranged at two ends of the adjustable screw rod 9, a through hole 901 is formed in the middle of the adjustable screw rod 9, an adjusting rod is arranged in the through hole 901, and two ends of the adjusting screw rod are respectively in threaded connection with the rolling wheel 501 and the flange top support 1.
The walking roller comprises a roller seat 5, a first threaded hole 502 is formed in the upper end of the roller seat 5, the lower end of an adjusting screw rod is in threaded connection with the first threaded hole 502, an upper steel plate 7 is arranged on the lower portion of the flange top support 1, a second threaded hole 701 corresponding to the first threaded hole 502 is formed in the upper steel plate 7, and the upper end of the adjusting screw rod is in threaded connection with the second threaded hole 701.
The side plate of the roller seat 5 is provided with a back-buckling screw rod 6, and the back-buckling screw rod 6 is arranged below the sliding rail. The back-buckling screw rod 6 is in threaded connection on the side plate, and the back-buckling screw rod 6 extends inwards for a certain length and is used for avoiding the running roller and the flange top support 1 from overturning in the moving process, so that the safety and stability of the whole construction process are ensured.
During in-situ casting, the flange top support can be fastened on the template through bolts for fixing the rolling wheel 501, and the rolling wheel 501 can be fixed in other modes; after the concrete is poured on site on the flange plate with the beam, a lever is inserted into a central hole of an adjusting screw rod, the adjusting screw rod is rotated to achieve the effect of reducing the flange template 10, the rolling wheel 501 moves downwards for a certain distance, the flange template 10 is separated from the concrete, a guide chain is arranged on one side of a flange top support 1, then the flange template 10 support is transversely moved out by the guide chain, the outer die can be moved forwards, and the next section is constructed.
The construction process of the adjustable flange template device of the cast-in-situ beam of the cable-stayed bridge comprises the following steps:
s1, when a standard beam section is constructed, assembling a movable flange outer die system, and respectively assembling a flange template 10, a transverse support 2, an outer die lower support 3, an extension tripod, a roller seat 5 and a triangular support 8 on a construction site;
s2, sequentially assembling a flange plate top support, an upper and lower adjustable screw rod 9, a rolling wheel 501, a bottom back-fastening screw rod 6 and a lower support assembly template system with an extension triangular support 8 according to the main structure size, adjusting the height of the rolling wheel 501 through the adjustable screw rod 9 after installing a flange template 10 and the support, ensuring the top flange level and the angle to be correct, reinforcing all support panels, and carrying out subsequent process construction after welding or bolting firmly, thereby finally meeting the concrete pouring condition;
s3, finishing construction of a standard beam section, performing construction of the beam section with the stay cable tooth blocks, after finishing construction, performing demolding operation, and after the whole formwork falls off from concrete, firstly utilizing a short reinforcing bar to descend the screw shaft of the rolling wheel 501, and simultaneously ensuring that the descending height of an outer roller is greater than that of an inner roller, so that the flange formwork 10 is in an outward tilting state;
s4, pushing out the template by using a rolling wheel 501, enabling the inner side surface of the flange template 10 to be positioned at the outer side of a tooth block of the cable-stayed bridge, and fixing the flange template 10 with the lower bracket 3 of the outer mold by using a back-buckling screw rod 6 to prevent the template from moving at will when moving forward;
s5, the outside template system can be moved forward;
s6, after the outer die descending flange template 10 transversely moves to the outer side, the outer die system and the hanging basket simultaneously move forward to the two ends of the next cantilever for construction operation.
It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
Claims (7)
1. An adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge, which is characterized in that: the construction hanging basket comprises a plurality of main beams (15), a front cross beam (11) and a rear cross beam (12) which are arranged on a bridge main body (4), wherein the front cross beam (11) is arranged at the front end of the main beam (15), the outer side of the rear cross beam (12) is connected with hanging legs (14) through bolts, the hanging legs (14) are vertically downwards arranged, and the cross beam of the hanging legs (14) bears a flange top support (1), a transverse moving support (2), a walking roller and an outer mold lower support (3) which is arranged below the transverse moving support;
the cast-in-situ beam outer mold back frame at one side of the bridge main body (4) is provided with a flange top support (1), a transverse support (2), a walking roller and an outer mold lower support (3) arranged below the transverse support (2), a rolling wheel (501) of the walking roller is connected to the lower part of the flange top support (1) through an adjusting screw, and the rolling wheel (501) is in sliding connection with a sliding rail of the transverse support (2);
the outer side of the front cross beam (11) is connected with the transverse support (2) in a hanging way through a hanging belt (13).
2. An adjustable flange formwork apparatus for a cast-in-place beam of a cable-stayed bridge as claimed in claim 1, wherein: the walking roller comprises a roller seat (5), a first threaded hole (502) is formed in the upper end of the roller seat (5), the lower end of the adjusting screw is in threaded connection with the first threaded hole (502), a back-buckling screw (6) is arranged on a side plate of the roller seat (5), and the back-buckling screw (6) is arranged below the sliding rail.
3. An adjustable flange formwork apparatus for a cast-in-place beam of a cable-stayed bridge as claimed in claim 1, wherein: the flange top support (1) lower part is provided with steel sheet (7), go up steel sheet (7) and seted up second screw hole (701) corresponding with first screw hole (502), adjusting screw upper end threaded connection is in second screw hole (701).
4. An adjustable flange formwork apparatus for a cast-in-place beam of a cable-stayed bridge as claimed in claim 3, wherein: the outer side of the flange top support (1) is provided with a guide chain which is connected with the bottom of the flange top support (1).
5. An adjustable flange formwork apparatus for a cast-in-place beam of a cable-stayed bridge as claimed in claim 1, wherein: the transverse support (2) further comprises a triangular support (8), and the lower part of the triangular support (8) is connected with the outer mold lower support (3).
6. An adjustable flange formwork apparatus for a cast-in-place beam of a cable-stayed bridge as claimed in claim 1, wherein: external threads are respectively arranged at two ends of the adjustable screw rod (9), a through hole (901) is formed in the middle of the adjustable screw rod (9), and an adjusting rod is arranged in the through hole (901).
7. A construction process of an adjustable flange template device of a cast-in-situ beam of a cable-stayed bridge, comprising the adjustable flange template device of the cast-in-situ beam of the cable-stayed bridge as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps:
s1, when a standard beam section is constructed, assembling a movable flange outer die system, and respectively assembling a flange template, a transverse support, an outer die lower support, an extension tripod, a roller seat and a triangular support on a construction site;
s2, sequentially assembling a flange plate top support, an upper and lower adjustable screw rod, a rolling wheel, a bottom back-buckling screw rod and a lower support assembly template system with an extension triangular support according to the main structure size, adjusting the height of the rolling wheel through the adjustable screw rod after installing a flange template and the support, ensuring the top flange to be horizontal and the top flange to be right in angle, reinforcing all support panels, and carrying out subsequent process construction after welding or bolting firmly, so that the concrete pouring condition is finally met;
s3, finishing construction of a standard beam section, performing construction of the beam section with the stay cable tooth blocks, after finishing construction, performing demolding operation, and after the whole formwork falls off from concrete, firstly, lowering the rolling wheel screw shaft by using a short reinforcing bar, and simultaneously ensuring that the lowering height of an outer side roller is greater than that of an inner side roller, so that the flange formwork is in an outward tilting state;
s4, pushing out the template by using a rolling wheel, enabling the inner side surface of the flange template to be positioned at the outer side of the tooth block of the cable-stayed bridge, and fixing the flange template with a bracket at the lower part of the outer mold by using a back-buckling screw rod to prevent the template from moving randomly when moving forwards;
s5, advancing the outside template system;
s6, after the outer die descending flange template transversely moves to the outer side, the outer die system and the hanging basket simultaneously move forward to the two ends of the next cantilever for construction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310558351.3A CN116377888A (en) | 2023-05-16 | 2023-05-16 | Adjustable flange template device of cast-in-situ beam of cable-stayed bridge and construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310558351.3A CN116377888A (en) | 2023-05-16 | 2023-05-16 | Adjustable flange template device of cast-in-situ beam of cable-stayed bridge and construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116377888A true CN116377888A (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310558351.3A Pending CN116377888A (en) | 2023-05-16 | 2023-05-16 | Adjustable flange template device of cast-in-situ beam of cable-stayed bridge and construction process |
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| Country | Link |
|---|---|
| CN (1) | CN116377888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117604921A (en) * | 2024-01-23 | 2024-02-27 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
-
2023
- 2023-05-16 CN CN202310558351.3A patent/CN116377888A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117604921A (en) * | 2024-01-23 | 2024-02-27 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
| CN117604921B (en) * | 2024-01-23 | 2024-03-29 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
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