CN115467245A - Capping beam construction system and method - Google Patents
Capping beam construction system and method Download PDFInfo
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- CN115467245A CN115467245A CN202211327901.2A CN202211327901A CN115467245A CN 115467245 A CN115467245 A CN 115467245A CN 202211327901 A CN202211327901 A CN 202211327901A CN 115467245 A CN115467245 A CN 115467245A
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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Abstract
The invention discloses a bent cap construction system and a bent cap construction method, wherein the bent cap construction system comprises a template system, a construction platform system and a supporting system, the template system is arranged on the construction platform, the supporting system is arranged above a pier, an embedded part is arranged in the pier, and the embedded part is used for installing the supporting system; the supporting system is provided with a lifting mechanism for lifting the construction platform system, so that the construction platform system can move along the length direction of the bridge pier, and the supporting system can be used for stably supporting the construction platform system after the construction platform system is lifted in place; the bent cap construction system in this scheme can assemble the construction platform system subaerial along the size of pier, then the hoist mechanism of rethread braced system promotes the construction platform system, when promoting preset position, fixes the construction platform system and braced system, assembles the template system again, and concreting carries out the preparation of bent cap, through this scheme, can reduce the time at high altitude assembly construction platform system.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a capping beam construction system and a capping beam construction method.
Background
Highway bridges are generally column piers, and the pier columns are generally double columns or three columns according to different widths of the bridges; because the pier stud diameter is little to the pier stud interval is big, need adopt staple bolt or set up the support during bent cap construction and can construct. Currently, anchor ear construction is generally adopted; when the hoop is adopted for construction, the traditional mode is that a sand cylinder, a jack or a triangular pull block and other members are generally placed on a hoop bracket, and then I-shaped steel is longitudinally arranged on the members to form a longitudinal supporting system. The longitudinal and transverse beam supporting brackets erected by adopting the form have the defects of long installation and dismantling time, continuous high-altitude operation, multiple high-altitude hoisting times, low platform stability and the like.
Disclosure of Invention
The invention aims to: aiming at the problems, the capping beam construction system and the capping beam construction method are provided, and the problems that in the prior art, the erection of the longitudinal and transverse beam support bracket is long in installation and removal time, continuous in high-place operation, multiple in high-place hoisting times and low in platform stability are solved.
The invention is realized by the following scheme:
a bent cap construction system comprises a template system, a construction platform system and a support system, wherein the construction platform system is arranged around a pier, the template system is arranged on the construction platform, the support system is arranged above the pier, an embedded part is arranged in the pier, and the embedded part is used for installing the support system; the supporting system is provided with a lifting mechanism for lifting the construction platform system, so that the construction platform system can move along the length direction of the pier, and the supporting system can be used for stably supporting the construction platform system after the construction platform system is lifted in place.
Based on the structure of the bent cap construction system, the supporting system comprises a vertical frame, a main truss and a control system; the vertical frame is provided with a connecting part connected with the embedded part in the bridge pier, the main truss is connected with the vertical frame, the lifting mechanism is arranged on the main truss, and the control system is in communication connection with the lifting mechanism.
Based on the structure of the bent cap construction system, the lifting mechanisms are symmetrically arranged along the connecting line direction of piers to be constructed, at least 4 lifting mechanisms are arranged, and each lifting mechanism is provided with a hook and is connected with a construction platform system through the hook; the lifting mechanism comprises a guide groove, a connecting body, a lifting motor, a steel rope, a hook and a walking part; the guide way sets up along the length direction symmetry of connector, and the setting of promotion motor is on the connector, and the steel cable is connected with the output that promotes the motor, and the couple sets up on the steel cable. The main truss 4 is provided with a guide rail, the shape and size of the guide rail are matched with those of a guide groove, the guide groove can move along the length direction of the guide rail, and the walking part is arranged on the connecting body; the walking part comprises walking teeth and a locking part, a rack matched with the walking teeth is arranged on the main truss, the walking wheels can be driven to move along the length direction of the rack, and the locking part can lock the position of the connecting body; the locking part protects the telescopic part, the main truss is provided with a locking hole matched with the telescopic part, and the telescopic part passes through the locking hole and locks the lifting mechanism.
Based on the structure of the bent cap construction system, the construction platform system comprises longitudinal beams, cross beams, a walking platform and railings, the longitudinal beams are arranged in parallel in the connecting line direction of piers to be constructed, and a buffer part is further arranged on a contact part of the construction platform system and the piers; the buffer part is arranged on a contact part of the longitudinal beam and the pier; the crossbeam sets up on the longeron, the walking platform sets up on the crossbeam, the walking platform sets up along the pier outer lane ring shape of waiting to be under construction.
Based on the structure of the bent cap construction system, the buffer parts are shaft-shaped rollers, at least 2 shaft-shaped rollers are arranged in the width direction of the longitudinal beam, and the edges of the shaft-shaped rollers protrude out of the boundary of the longitudinal beam.
Based on the structure of the bent cap construction system, the rotating shaft of the shaft-shaped roller is fixed in the length direction of the longitudinal beam, so that the shaft-shaped roller can rotate along the width direction of the longitudinal beam, the adjacent longitudinal beams are provided with pull rods, and the distance between the adjacent pull rods is slightly larger than the diameter of the bridge.
Based on the structure of the bent cap construction system, the template system comprises a bottom die, a side die and an end die; the bottom die is arranged on the cross beam, an opening for the pier to penetrate through is formed in the bottom die, the end dies are arranged on two sides of the bottom die in the length direction, the side dies are arranged on two sides of the bottom die in the width direction, and the bottom die, the side dies and the end dies integrally form a cavity structure for pouring the cover beam.
The invention provides a capping beam construction method, which is characterized by comprising the following steps: the method comprises the following specific steps:
the method comprises the following steps: embedding an embedded part at the top of the pier during concrete pouring construction at the top of the pier;
step two: assembling a construction platform system on the ground around the bridge piers;
step three: installing a formwork system on the construction platform system;
step four: installing and constructing a support system at the top of the pier;
step five: integrally lifting a construction platform system and a template system by using the supporting system;
step six: the supporting system is utilized to lock and stabilize the construction platform system, so that the first stress system conversion is realized;
step seven: pouring concrete and maintaining;
step eight: unlocking the construction platform system, realizing the second stress system conversion, and integrally hoisting the construction platform system and the template system to the ground by using the support system;
step nine: disassembling the template system and the construction platform system;
step ten: and disassembling and hoisting the supporting system.
The concrete step in the second step is; sequentially assembling longitudinal beams on the ground of piers to be constructed, limiting the piers through adjacently arranged pull rods, enabling shaft-shaped rollers on the longitudinal beams to be in contact with the surfaces of the piers, then sequentially arranging cross beams along the length direction of the longitudinal beams, assembling a bottom die on the cross beams between the piers to be constructed after the arrangement of the cross beams is completed, enabling an opening in the bottom die to be matched with the positions of the piers, and then arranging a walking platform and a railing around the piers to be constructed; the concrete steps of the fifth step are; the hooks of the plurality of lifting mechanisms are connected with the cross beams adjacent to the lower sides of the hooks, the control system of the lifting mechanisms is started, the construction platform system and the template system are moved along the length direction of the pier through the lifting mechanisms, and in the moving process, the shaft-shaped rollers of the longitudinal beams are always in contact with the surface of the pier.
The concrete method of the sixth step is as follows: adjusting the elevation of a bottom die on a construction platform system, fixing a longitudinal beam, a cross beam and a main truss by using a fixing piece, then loosening a hook of a lifting mechanism and the cross beam to realize the first stress system conversion, and supporting the construction platform system by a support structure formed by a vertical frame, the main truss and a pier; and step eight, connecting the hook of the lifting mechanism with the position corresponding to the cross beam again, disassembling the fixing piece, enabling the longitudinal beam and the cross beam to be respectively unbounded with the main truss, supporting the weight of the construction platform system by the vertical frame and the lifting mechanism again at the moment, and realizing the second stress system conversion.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the bent cap construction system in this scheme, can assemble the construction platform system along the size of pier subaerial, then the hoist mechanism of rethread braced system promotes the construction platform system, when promoting preset position, fix construction platform system and braced system, assemble the template system again, concreting carries out the preparation of bent cap, through this scheme, can be very big reduction in the time of high altitude construction platform system, place most construction operation steps and go on subaerially, whole bent cap construction process's danger has been reduced, whole construction process most adopts mechanized operation simultaneously, reduction engineering time that can be very big, reduce the cost of labor.
2. In the bent cap construction method in this scheme, most of operations are accomplished by mechanized assistance, very big reduction human labor intensity, simultaneously through the conversion of twice atress system in this technology, can be quick install the construction platform system and fix a position, and dismantle the whereabouts, the flexibility of this technology of increase that increases has increaseed has reduced hoisting equipment's use, has saved holistic assemble duration, is provided with axle type gyro wheel in this technology simultaneously, can effectually protect the pier surface.
Drawings
FIG. 1 is a schematic side view of the construction system for a capping beam according to the present invention;
FIG. 2 is a schematic view of the hoist mechanism pulling the construction platform system up to a predetermined position;
FIG. 3 is a schematic top view of the construction system of the present invention;
FIG. 4 is a schematic diagram of the construction of the template system of the present invention;
description of the drawings: 1. a lifting mechanism; 2. a buffer section; 3. erecting a frame; 4. a main truss; 5. a connecting portion; 6. a stringer; 7. a cross beam; 8. a walking platform; 9. a railing; 10. a pull rod; 11. bottom die; 12. side mould; 13. end die; 14. a bridge pier; 15. a guide groove; 16. a linker; 17. a hoisting motor; 18. a steel cord; 19. a guide rail; 20; a walking tooth; 21. a rack; 22. a telescopic part; 23. a locking hole.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Example 1
As shown in fig. 1 to 4, the present invention provides a technical solution:
the utility model provides a bent cap construction system, its includes but not limited to template system, construction platform system and braced system at least, braced system and pier 14 are connected, and construction platform system encircles pier 14 and sets up, and template system sets up on construction platform, and is specific, braced system locates the pier top, be equipped with the built-in fitting in the pier, the built-in fitting is used for the installation braced system is provided with the hoist mechanism 1 that is used for promoting construction platform system on the braced system, makes construction platform system can remove along pier 14's length direction, just braced system can be used for the construction platform system promotes to stabilize the support to it after targetting in place.
Based on above-mentioned structure, can assemble the construction platform system along pier 14's size subaerial, then hoist mechanism 1 through braced system promotes the construction platform system, when promoting preset position, fix the construction platform system and braced system, assemble the template system again, concreting carries out the preparation of bent cap, through this scheme, can be very big reduce the time at high altitude assembly construction platform system, place most construction operation steps on subaerial going on, whole bent cap construction process's danger has been reduced, simultaneously whole construction process most adopts mechanized operation, reduction engineering time that can be very big, reduce the cost of labor.
As an example, the support system may comprise a stand 3, a main girder 4 and a control system; the vertical frame 3 is provided with a connecting part 5 connected with an embedded part in a pier 14, the main truss 4 is connected with the vertical frame 3, the lifting mechanism 1 is arranged on the main truss 4, and the control system is in communication connection with the lifting mechanism 1.
Based on the structure, the vertical frame 3 forms a stable supporting structure with the pier 14 through the connecting part 5, is used for providing supporting force when the construction platform system is lifted, can lift the construction platform system through the lifting mechanism 1, and then binds and fixes the construction platform system and the main truss 4, so that the construction platform system is fixed, the connecting part can be a connecting bolt or a connecting screw hole, and a stable structure can be formed through fixing prefabricated parts in the pier in a prefabricated mode.
As an example, the lifting mechanisms 1 are symmetrically arranged along the length direction of the main truss 4, and at least 4 lifting mechanisms are arranged, each lifting mechanism 1 is provided with a hook, and the hook is hooked with the construction platform system, and at least 4 hooks can stably lift and drop the construction platform system.
Specifically, the lifting mechanism may include a guide slot 15, a connector 16, a lifting motor 17, a steel rope 18, a hook, and a walking part; the guide grooves 15 are symmetrically arranged along the length direction of the connecting body 16, the lifting motor 17 is arranged on the connecting body 16, the steel rope 18 is connected with the output end of the lifting motor 17, and the hook is arranged on the steel rope 18. The main truss 4 is provided with a guide rail 19, the shape and size of the guide rail 19 are matched with those of the guide groove 15, the guide groove 15 can move along the length direction of the guide rail 19, and the walking part is arranged on the connecting body 16.
Based on the structure, the travelling part can drive the lifting mechanism to move to a certain degree along the length direction of the guide rail 19, the positions of the hooks are adjusted in sequence, the steel rope 18 can be retracted and extended through the lifting motor 17, and the external stretching operation is realized.
As an example, the walking part may include walking teeth 20, a rack 21 matched with the walking teeth 20 is provided on the main truss, the walking wheel can be driven to move along the length direction of the rack 21, and the locking part can lock the position of the connecting body 16.
The locking part can comprise a telescopic part 22, a locking hole 23 matched with the telescopic part 22 is formed in the main truss, and the telescopic part 22 passes through the locking hole 23 to lock the lifting mechanism.
The telescopic part 22 may be an electric telescopic tube, a telescopic cylinder or a telescopic oil cylinder.
As an example, the construction platform system may include longitudinal beams 6, cross beams 7, a walking platform 8 and railings 9, the longitudinal beams 6 are arranged in parallel in a connection direction of piers 14 to be constructed, and a buffer part is further arranged on a contact part of the construction platform system and the piers; the buffer part 2 is arranged on the contact part of the longitudinal beam 6 and the pier 14, and in the process of lifting or descending the construction platform system, the buffer part 2 is always in surface contact with the pier 14, so that the longitudinal beam 6 is prevented from damaging the surface of the pier 14 in the motion process.
The walking platform is arranged on the cross beam 7 and fixedly connected with the cross beam 7, the walking platform is annularly arranged along the outer ring of the pier 14 to be constructed, and if 2 piers 14 exist, the walking platform is arranged along the outer ring of the 2 piers 14 to form a closed-loop path wrapping the 2 piers 14; if 3 piers 14 exist, the walking platform is arranged along the outer ring of the 3 piers 14 to form a closed loop path wrapping the 3 piers 14; the operator can work on the walking platform.
As an example, the buffer part 2 may be a shaft-type roller, which is provided at least 2 in the width direction of the side member 6, and the edge of the shaft-type roller protrudes from the boundary of the side member 6, so that when the side member 6 is brought into contact with the pier 14, the shaft-type roller is always brought into contact with the pier 14, thereby protecting the side member.
As an example, the rotation axis of the shaft-shaped roller is fixed in the longitudinal direction of the side member 6, and the shaft-shaped roller can rotate in the width direction of the side member 6, so that the side member 6 can be more stably rolled on the abutment pier 14 in the end.
As an example, the balustrade 9 is disposed along the edge of the walking platform, and the balustrade 9 is disposed perpendicular to the walking platform, so that the balustrade 9 can prevent the constructor from falling off the walking platform, and provide safety protection for the constructor.
By way of example, tie rods 10 are arranged between adjacent longitudinal beams 6, and the distance between adjacent tie rods 10 is slightly larger than the diameter of the bridge.
Based on above-mentioned structure, can be taut adjacent longeron 6 through pull rod 10, make axle type gyro wheel and 14 surfaces of pier closely laminate, promote the stability of construction platform system in the motion process, carry on pier 14 spacing through pull rod 10 simultaneously, prevent that longeron 6 from appearing rocking about in the motion process.
As an example, the formwork system may include a bottom mould 11, side moulds 12 and end moulds 13; the bottom die 11 is provided on the cross beam 7, and the bottom die 11 is provided with an opening through which the pier 14 passes, so that the coping can be formed into an integral structure with the pier 14 after the pouring is completed.
The end molds 13 are arranged at two sides of the bottom mold 11 in the length direction, the side molds 12 are arranged at two sides of the bottom mold 11 in the width direction, and the bottom mold 11, the side molds 12 and the end molds 13 integrally form a cavity structure for pouring the bent cap.
Through this bent cap construction system, can be fast, stable, high-efficient, safe pour the construction to the bent cap, can not cause the damage to 14 lateral walls of pier simultaneously.
Example 2
Based on the construction system in embodiment 1, this embodiment provides a capping beam construction method, which includes:
the method comprises the following steps: when concrete pouring construction is performed on the top of the pier 14, embedding an embedded part in the top of the pier 14; the embedded parts can be nuts or sleeves, 3 or 4 embedded parts are reserved in each pier 14 and are arranged in an equilateral triangle or square shape, and the embedded parts are conveniently fixed with the later-stage vertical frame 3.
Step two: assembling the construction platform system around the piers 14 on the ground; the longitudinal beam 6 is sequentially assembled on the ground of a pier 14 to be constructed, the pier 14 is limited through the pull rods 10 which are adjacently arranged, the shaft-shaped rollers on the longitudinal beam 6 are in surface contact with the pier 14, then the cross beam 7 is sequentially arranged along the length direction of the longitudinal beam 6, after the cross beam 7 is arranged, the bottom die 11 is assembled on the cross beam 7 to be constructed between the piers 14, the opening on the bottom die 11 is matched with the pier 14 in position, and then the walking platform and the railings 9 are arranged around the pier 14 to be constructed.
Step three: installing a template system on the construction platform system; the vertical frame 3 of the support system is fixed in an embedded part at the top of a pier 14 through a connecting part 5, so that the vertical frame 3 and the pier 14 form a stable support structure, then a main truss 4 is hoisted and connected with the vertical frame 3, and a lifting mechanism 1 is installed on the main truss 4.
Step four: and installing and building a supporting system at the top of the pier, and particularly fixing the supporting system and the embedded part.
Step five: integrally lifting a construction platform system and a template system by using the supporting system; the hooks of the plurality of lifting mechanisms 1 are connected with the cross beams 7 adjacent to the lower sides of the lifting mechanisms 1, the control system of the lifting mechanisms 1 is started, the construction platform system and the template system move along the length direction of the pier 14 through the lifting mechanisms 1, and in the moving process, the shaft-shaped rollers of the longitudinal beams 6 are always in surface contact with the pier 14.
Step six: utilize braced system is right the construction platform system locks firmly, realizes the conversion of first atress system, adjusts 11 boards elevations of die block on the construction platform system, fixes longeron 6, crossbeam 7 and main truss 4 with the mounting, then loosens hoist mechanism 1's couple and crossbeam 7 again, realizes the conversion of first atress system, and the bearing structure who has grudging post 3, main truss 4 and pier 14 to form this moment supports the construction platform system. And hoisting the template after locking, directly hoisting the template pieces of the end die 13 and the side die 12 through the hoisting mechanism 1, and assembling the end die 13 and the side die 12 along the circumferential position of the bottom die 11, the scheme does not need the assistance of a crane, and a construction system can hoist the rest templates efficiently, autonomously and flexibly, thereby increasing the versatility of the hoisting mechanism 1 and saving the whole construction operation time.
Step seven: pouring concrete and maintaining; and pouring concrete in a cavity formed by the bottom die 11, the end die 13 and the side die 12, and curing the poured and formed bent cap beam structure.
Step eight: unlocking the construction platform system; the hook of the lifting mechanism 1 is connected with the position corresponding to the cross beam 7 again, the fixing piece is disassembled, the longitudinal beam 6 and the cross beam 7 are respectively unbounded with the main truss 4, at the moment, the weight of the construction platform system is supported by the vertical frame 3 and the lifting mechanism 1 again, and the second stress system conversion is achieved.
Step nine: disassembling the template system and the construction platform system; the construction platform system is synchronously and horizontally transferred by utilizing the plurality of lifting mechanisms 1, when the specific ground of the construction platform system is not more than 5cm, the bottom die 11 is detached, and after the bottom die 11 falls on the cross beam 7, the construction platform system and the bottom die 11 are synchronously descended to the ground. And after the concrete strength of the bent cap structure reaches a preset requirement, pulling and dismantling the end mould 13 and the side mould 12 through the lifting mechanism 1.
Step ten: and disassembling and lifting the supporting system, after the construction platform system is dispatched, disconnecting the hook of the lifting mechanism 1 from the cross beam 7, lifting and resetting the hook, and finally lifting the disassembled lifting mechanism 1, the main truss 4 and the vertical frame 3 to the ground by utilizing lifting equipment.
In the process, most of operations are completed by mechanical assistance, the labor intensity of manpower is greatly reduced, meanwhile, the construction platform system can be rapidly installed, positioned, disassembled and dropped through the conversion of two stress systems in the process, the flexibility of the process is increased greatly, the use of hoisting equipment is reduced, the integral assembly time is saved, and meanwhile, the shaft type roller is arranged in the process, so that the surface of the pier 14 can be effectively protected.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a bent cap construction system which characterized in that: the construction platform system is arranged around a pier, the template system is arranged above the construction platform, the support system is arranged above the pier, an embedded part is arranged in the pier, and the embedded part is used for installing the support system; the supporting system is provided with a lifting mechanism for lifting the construction platform system, so that the construction platform system can move along the length direction of the bridge pier, and the supporting system can be used for stably supporting the construction platform system after the construction platform system is lifted in place.
2. A capping beam construction system as claimed in claim 1, wherein: the supporting system comprises a vertical frame, a main truss and a control system; the vertical frame is provided with a connecting part connected with the embedded part in the bridge pier, the main truss is connected with the vertical frame, the lifting mechanism is arranged on the main truss, and the control system is in communication connection with the lifting mechanism.
3. A capping beam construction system as claimed in claim 2, wherein: the lifting mechanisms are symmetrically arranged along the connecting line direction of the pier to be constructed, at least 4 lifting mechanisms are arranged, and each lifting mechanism is provided with a hook which is hooked with the construction platform system; the lifting mechanism comprises a guide groove, a connecting body, a lifting motor, a steel rope, a hook and a walking part; the guide way sets up along the length direction symmetry of connector, and the setting of promotion motor is on the connector, and the steel cable is connected with the output that promotes the motor, and the couple sets up on the steel cable. The main truss 4 is provided with a guide rail, the shape and the size of the guide rail are matched with those of a guide groove, the guide groove can move along the length direction of the guide rail, and the walking part is arranged on the connecting body; the walking part comprises walking teeth and a locking part, a rack matched with the walking teeth is arranged on the main truss, the walking wheels can be driven to move along the length direction of the rack, and the locking part can lock the position of the connecting body; the locking part protects the telescopic part, the main truss is provided with a locking hole matched with the telescopic part, and the telescopic part passes through the locking hole and then locks the hoisting mechanism.
4. A capping beam construction system as claimed in claim 3, wherein: the construction platform system comprises longitudinal beams, cross beams, a walking platform and railings, wherein the longitudinal beams are arranged in parallel in the connection direction of piers to be constructed, and a buffer part is further arranged on a contact part of the construction platform system and the piers; the buffer part is arranged on a contact part of the longitudinal beam and the pier; the beam is arranged on the longitudinal beam, the walking platform is arranged on the beam, and the walking platform is arranged along the outer ring of the bridge pier to be constructed in an annular mode.
5. The capping beam construction system of claim 4, wherein: the buffer part is a shaft type roller, the number of the shaft type rollers is at least 2 along the width direction of the longitudinal beam, and the edge of the shaft type roller protrudes out of the boundary of the longitudinal beam.
6. The capping beam construction system of claim 5, wherein: the rotating shaft of the shaft-shaped roller is fixed in the length direction of the longitudinal beam, so that the shaft-shaped roller can rotate along the width direction of the longitudinal beam, pull rods are arranged between every two adjacent longitudinal beams, and the distance between every two adjacent pull rods is slightly larger than the diameter of the bridge.
7. A capping beam construction system as claimed in any one of claims 1 to 6, wherein: the template system comprises a bottom die, a side die and an end die; the bottom die is arranged on the cross beam, an opening for the pier to penetrate through is formed in the bottom die, the end dies are arranged on two sides of the bottom die in the length direction, the side dies are arranged on two sides of the bottom die in the width direction, and the bottom die, the side dies and the end dies integrally form a cavity structure for pouring the cover beam.
8. A bent cap construction method based on the bent cap construction system of any one of claims 1 to 7, characterized in that: the method comprises the following specific steps:
the method comprises the following steps: embedding an embedded part at the top of the pier during concrete pouring construction at the top of the pier;
step two: assembling a construction platform system on the ground around the bridge piers;
step three: installing a formwork system on the construction platform system;
step four: installing and constructing a support system at the top of the pier;
step five: integrally lifting a construction platform system and a template system by using the supporting system;
step six: the construction platform system is locked firmly by using the supporting system, so that the first stress system conversion is realized;
step seven: pouring concrete and maintaining;
step eight: unlocking the construction platform system, realizing the second stress system conversion, and integrally hoisting the construction platform system and the template system to the ground by using the supporting system;
step nine: disassembling the template system and the construction platform system;
step ten: and disassembling and hoisting the supporting system.
9. A capping beam construction method as claimed in claim 8, wherein: the concrete step in the second step is; sequentially assembling longitudinal beams on the ground of piers to be constructed, limiting the piers through adjacently arranged pull rods, enabling shaft-shaped rollers on the longitudinal beams to be in contact with the surfaces of the piers, then sequentially arranging cross beams along the length direction of the longitudinal beams, assembling a bottom die on the cross beams between the piers to be constructed after the arrangement of the cross beams is completed, enabling an opening in the bottom die to be matched with the positions of the piers, and then arranging a walking platform and a railing around the piers to be constructed; the concrete steps of the fifth step are; the hooks of the plurality of lifting mechanisms are connected with the cross beams adjacent to the lower sides of the hooks, the control system of the lifting mechanisms is started, the construction platform system and the template system are moved along the length direction of the pier through the lifting mechanisms, and in the moving process, the shaft-shaped rollers of the longitudinal beams are always in contact with the surface of the pier.
10. A capping beam construction method as claimed in claim 9, wherein: the concrete method of the sixth step is as follows: adjusting the elevation of a bottom die on a construction platform system, fixing a longitudinal beam, a cross beam and a main truss by using a fixing piece, then loosening a hook of a lifting mechanism and the cross beam to realize the first stress system conversion, and supporting the construction platform system by a support structure formed by a vertical frame, the main truss and a pier; and step eight, connecting the hook of the lifting mechanism with the corresponding position of the cross beam again, disassembling the fixing piece, unbinding the longitudinal beam and the cross beam from the main truss respectively, and supporting the weight of the construction platform system by the vertical frame and the lifting mechanism again to realize the second stress system conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211327901.2A CN115467245A (en) | 2022-10-27 | 2022-10-27 | Capping beam construction system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211327901.2A CN115467245A (en) | 2022-10-27 | 2022-10-27 | Capping beam construction system and method |
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| CN115467245A true CN115467245A (en) | 2022-12-13 |
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| CN202211327901.2A Pending CN115467245A (en) | 2022-10-27 | 2022-10-27 | Capping beam construction system and method |
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| CN (1) | CN115467245A (en) |
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2022
- 2022-10-27 CN CN202211327901.2A patent/CN115467245A/en active Pending
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