CN114197318A - Multi-section bridge pouring equipment and construction method thereof - Google Patents
Multi-section bridge pouring equipment and construction method thereof Download PDFInfo
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- CN114197318A CN114197318A CN202111663847.4A CN202111663847A CN114197318A CN 114197318 A CN114197318 A CN 114197318A CN 202111663847 A CN202111663847 A CN 202111663847A CN 114197318 A CN114197318 A CN 114197318A
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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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Abstract
The invention discloses a multi-section bridge pouring device and a construction method thereof, wherein the multi-section bridge pouring device comprises a pouring module and a suspension module; the pouring module is used as a template for pouring the bridge section; the pouring module comprises an outer mold assembly, and an inner core is arranged in the outer mold assembly; a new bridge section is poured between the outer mold component and the inner core; a reinforcing component is embedded and fixedly connected in the new bridge section; the suspension module is used for suspending and fixing the external mold component; the suspension module comprises a fixed part, a movable part is connected to the fixed part in a sliding mode, and the movable part is fixedly connected with the outer die assembly through a connecting assembly. The bridge pouring device is simple in structure and convenient to use, can complete bridge pouring between two piers after one-time assembly, does not need to be mounted and dismounted for many times, saves a large amount of manpower and material resources, improves construction efficiency, reduces construction time and reduces construction period.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a multi-section bridge pouring device and a construction method thereof.
Background
Bridge construction is the mountain road, highway, important part in constructions such as high-speed railway and city elevated, need use the support to support the bridge mould when the bridge is pour, traditional support is mostly beam column type support, beam column type support is mainly the reassembling type, it pours and accomplishes the unable removal of back support, every pour one section back, need dismantle the support completely, transport to other positions that need pour, the dismantlement of support, a large amount of manpower and materials have been wasted in transportation and the equipment, seriously influence construction cycle and efficiency.
The detachable support column mainly depends on the hanging basket assembly to perform vertical mold pouring, but the existing hanging basket assembly needs a single template to be installed during vertical mold, so that the installation process is complicated; pouring cannot be integrally demoulded, a single template is required to be disassembled, and the formwork is assembled again when pouring is carried out again, so that time and labor are wasted, errors are easily caused by repeated assembling and disassembling, the building efficiency is influenced, and the service life and the safety of the built bridge are also influenced. Therefore, a multi-section bridge pouring device and a construction method thereof are urgently needed, pouring is carried out on the premise that the pouring is not required to be completely disassembled after each pouring, the construction speed is accelerated, and the construction quality is improved.
Disclosure of Invention
The invention aims to provide a multi-section bridge pouring device and a construction method thereof, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a multi-section bridge pouring device, which comprises
The pouring module is used as a template for pouring the bridge section; the pouring module comprises an outer mold assembly, and an inner core is arranged in the outer mold assembly; a new bridge section is poured between the outer mold component and the inner core; a reinforcing component is embedded and fixedly connected in the new bridge section;
the suspension module is used for suspending and fixing the external mold component; the suspension module comprises a fixed part, a movable part is connected to the fixed part in a sliding mode, and the movable part is fixedly connected with the outer mold component through a connecting component.
Preferably, the outer die assembly comprises a bottom plate, and the top surface of the bottom plate is abutted with the bottom surface of the existing bridge section; the side edge of the bottom plate is fixedly connected with the moving part through the connecting component; the top surface of the bottom plate is symmetrically hinged with two side plates, and a first telescopic rod is hinged between the side surface of the two side plates, which is far away from each other, and the top surface of the bottom plate; the inner surface of the side plate is abutted against the outer side surface of the existing bridge section; the inner core is arranged between the two side plates.
Preferably, the side plates comprise a first plate and a second plate which are hinged with each other, and the end surface of the first plate, which is far away from the second plate, is hinged with the top surface of the bottom plate; the second board is kept away from one side rigid coupling of inner core has articulated seat, the output of first telescopic link with articulated seat is articulated, the stiff end of first telescopic link with the bottom plate top surface is articulated.
Preferably, the inner core comprises an upper plate, a lower plate and a side plate which enclose a circle; the reinforcing assembly is arranged between the lower plate and the bottom plate; a second telescopic rod is arranged between the top surface of the lower plate and the bottom surface of the upper plate; the side plates comprise a third plate and a fourth plate which are hinged with each other, the bottom edge of the third plate is hinged with the lower plate, and the bottom edge of the fourth plate is hinged with the upper plate.
Preferably, the upper plate comprises two fifth plates hinged to each other, and the output end of the second telescopic rod abuts against the hinged position of the two fifth plates.
Preferably, the fixed part comprises three slide rails formed by a plurality of rails fixedly mounted end to end, and the bottom surfaces of the rails are fixedly connected to the top surfaces of the existing bridge sections; a limiting groove is formed in the track, and the moving part is connected with the limiting groove in a sliding manner; the tail seat is fixedly connected to one end, far away from the moving portion, of the rail, a third telescopic rod is fixedly connected to one end, facing the moving portion, of the tail seat, and the output end of the third telescopic rod is fixedly connected with the moving portion.
Preferably, the moving part comprises a plurality of moving seats which are connected in the limiting groove in a sliding manner, supporting columns are fixedly connected to the top surfaces of the moving seats, the top surfaces of the supporting columns are fixedly connected with the same moving beam, side plates 9, far away from each other, of the moving beams on the sliding rails on the two sides are fixedly connected with extension rods, and the connecting assembly is fixedly mounted at the tail ends of the extension rods; the middle end, far away from the third telescopic rod, of the moving part on the sliding rail is fixedly connected with the edge of the top surface of the bottom plate through the connecting assembly.
Preferably, coupling assembling include with the bottom plate top surface rigid coupling has a suspension device, suspension device's bottom surface fixed mounting has strutting arrangement, strutting arrangement's bottom surface and ground butt.
A multi-section bridge pouring construction method comprises the following construction steps:
a. constructing a pier and an existing bridge section;
b. mounting a suspension module;
c. installing an external mold component, adjusting the external appearance of the external mold component and recording an initial position z0；
d. Ballast test, recording the position z of the after-pressure0；
e. Ballast unloading and external mold component position height z adjustment1-z0；
f. Installing a reinforcing component and an inner core;
g. pouring concrete, and curing after pouring is finished;
h. loading prestress;
i. disassembling the inner core and the outer die assembly;
g. and (5) moving the fixed part, and repeating the steps a to i until the construction of the bridge is completed.
The invention discloses the following technical effects: the invention discloses a multi-section bridge pouring device and a construction method thereof, which are mainly used in the field of erection and pouring of multi-section bridges; the outer mold assembly and the inner core form a pouring mold of a new bridge section, so that the new bridge section is connected with the existing bridge section, and the pouring mold is high in installation and adjustment speed, convenient to use and flexible in adjustment; the suspension module is mainly applied to installation and fixation of the pouring module, the fixed portion fixes the whole suspension module on the existing bridge section, and the moving portion drives the whole pouring module to move. The bridge pouring device is simple in structure and convenient to use, can complete bridge pouring between two piers after one-time assembly, does not need to be mounted and dismounted for many times, saves a large amount of manpower and material resources, improves construction efficiency, reduces construction time and reduces construction period.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of the multi-segment bridge casting apparatus of the present invention;
FIG. 2 is a top view of the multi-segment bridge pouring apparatus of the present invention;
FIG. 3 is a side view of the multi-segment bridge pouring apparatus of the present invention;
FIG. 4 is a schematic structural view of a movable base according to the present invention;
FIG. 5 is a schematic view of the installation of the track of the present invention;
FIG. 6 is a schematic structural view of the core of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is a partial enlarged view of B in FIG. 6;
wherein, 1, an external mold component; 2. an inner core; 3. an existing bridge section; 4. a new bridge section; 5. a fixed part; 6. a moving part; 7. a connecting assembly; 8. a base plate; 9. a side plate; 10. a first telescopic rod; 11. a first plate; 12. a second plate; 13. a hinged seat; 14. an upper plate; 15. a lower plate; 16. a reinforcement assembly; 17. a second telescopic rod; 18. a third plate; 19. a fourth plate; 20. a fifth plate; 21. a track; 22. a limiting groove; 23. a tailstock; 24. a third telescopic rod; 25. a movable seat; 26. a support pillar; 27. a moving beam; 28. an extension rod; 29. a suspension device; 30. a support device; 31. a limiting device; 32. mortises; 33. a tenon; 34. and (4) a locking device.
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 order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 8, the present invention provides a multi-segment bridge pouring apparatus, comprising
The pouring module is used as a template for pouring the bridge section; the pouring module comprises an outer mold component 1, and an inner core 2 is arranged in the outer mold component 1; a new bridge section 4 is poured between the outer mold component 1 and the inner core 2; a reinforcing component 16 is embedded and fixedly connected in the new bridge section 4;
the suspension module is used for suspending and fixing the external mold component 1; the suspension module comprises a fixed part 5, a movable part 6 is connected on the fixed part 5 in a sliding mode, and the movable part 6 is fixedly connected with the outer die component 1 through a connecting component 7.
The invention discloses a multi-section bridge pouring device and a construction method thereof, which are mainly used in the field of erection and pouring of multi-section bridges; the outer mold assembly 1 and the inner core 2 form a pouring mold of a new bridge section 4, so that the new bridge section is connected with the existing bridge section 3, and the pouring mold is high in installation and adjustment speed, convenient to use and flexible in adjustment; it is fixed mainly to be applied to the installation of pouring the module to suspend the module in midair, and fixed part 5 suspends the module in midair wholly and has been fixed to have had bridge section 3 on, and removal portion 6 drives whole module removal of pouring, compares with prior art, need not to dismantle whole moulds and install after having pour a bridge section at every turn, and save time improves the building efficiency, has practiced thrift manpower and materials, has reduced construction cycle.
According to a further optimized scheme, the outer die assembly 1 comprises a bottom plate 8, and the top surface of the bottom plate 8 is abutted to the bottom surface of the existing bridge section 3; the side edge of the bottom plate 8 is fixedly connected with the moving part 6 through a connecting component 7; the top surface of the bottom plate 8 is symmetrically hinged with two side plates 9, and a first telescopic rod 10 is hinged between the side surface of each side plate 9 away from the top surface of the bottom plate 8; the inner surface of the side plate 9 is abutted with the outer side surface of the existing bridge section 3; the inner core 2 is arranged between the two side plates 9. The bottom plate 8 is a foundation of the new bridge section 4 in the whole pouring process, the poured new bridge section 4 is positioned on the bottom plate 8, the two side plates 9 are used as the side plates 9 of the new bridge section 4 for constraint, and the first telescopic rod 10 is used for adjusting the states of the side plates 9, so that the demoulding after pouring is convenient; when the bridge is used, the bottom plate 8 is moved to a preset position, then the first telescopic rod 10 is extended to support the two side plates 9 respectively, so that the top surfaces of the side plates 9 are flush with the top surface of the existing bridge section 3, and the inner walls of the side plates 9 abut against the side plates 9 of the existing bridge section 3; then, sequentially installing the reinforcing component 16 and the inner core 2, and then pouring; when the poured concrete reaches more than 90% -95% of the design strength, the first telescopic rod 10 is controlled to contract, the two side plates 9 are separated from the poured new bridge section 4, the suspension assembly is controlled to control the bottom plate 8 to descend, the bottom plate 8 is separated from the new bridge section 4, and pouring is completed.
In a further optimized scheme, the side plate 9 comprises a first plate 11 and a second plate 12 which are hinged with each other, and the end surface of the first plate 11 far away from the second plate 12 is hinged with the top surface of the bottom plate 8; one side of the second plate 12 far away from the inner core 2 is fixedly connected with a hinged seat 13, the output end of the first telescopic rod 10 is hinged with the hinged seat 13, and the fixed end of the first telescopic rod 10 is hinged with the top surface of the bottom plate 8. The side plate 9 comprises a first plate 11 and a second plate 12 which are hinged, the first plate 11 and the second plate 12 are hinged, and the angle of the hinge and the shapes of the first plate 11 and the second plate 12 are related to the shape structure of the bridge. When the first telescopic rod 10 extends, the second plate 12 is driven to rise through the hinge base 13, and gradually moves towards the outer wall of the existing bridge section 3 under the combined action of the first plate 11 and the first telescopic rod 10 until the second plate is abutted to the outer wall of the existing bridge section, so that the second plate serves as a side mold during pouring; after pouring, the first telescopic rod 10 is shortened, the first plate 11 and the second plate 12 are driven to move towards the direction far away from the new bridge section 4, and the first plate and the second plate are separated from the poured new bridge section 4 to be demolded.
Furthermore, a limit device 31 is arranged at the joint of the first plate 11 and the second plate 12 and at the hinge point of the first plate 11 and the bottom plate 8, and is used for limiting the angle when the side plate 9 moves under the driving of the first telescopic rod 10; the rotation angle limiting device 31 is a conventional device, and can be welded or otherwise fixed at the hinge position, which is not described herein.
Further, before pouring, the top surface of the bottom plate 8 and the inner wall of the side plate 9 are coated with substances which are convenient for demoulding, including but not limited to talcum powder, so that subsequent demoulding is convenient.
In a further optimized scheme, the inner core 2 comprises an upper plate 14, a lower plate 15 and side plates which enclose a circle; a reinforcing component 16 is arranged between the lower plate 15 and the bottom plate 8; a second telescopic rod 17 is arranged between the top surface of the lower plate 15 and the bottom surface of the upper plate 14; the side plate comprises a third plate 18 and a fourth plate 19 which are hinged with each other, the bottom edge of the third plate 18 is hinged with the lower plate 15, and the bottom edge of the fourth plate 19 is hinged with the upper plate 14. When the inner core 2 is used, a cavity is formed in the center position when the new bridge section 4 is poured, and the cavity is elaborately designed for utilizing materials to the maximum extent; according to the principle of material mechanics, the main loads of the bridge are the dead weight of the bridge and vehicles, pedestrians and the like on the bridge; under the action of the loads, the bridge mainly generates downward bending deformation, so that the bridge mainly considers the bending resistance; bending resistance is related to the cross-sectional shape; in brief, the higher the section is, the closer the area distribution is to the upper and lower ends, the better the bending resistance is; the bridge mainly bears bending moment, under the action of the bending moment, the maximum deformation is at the uppermost and the lowermost parts, and the vicinity of the center line is not basically stretched or shortened, which indicates that under the condition of bending deformation, the material near the center line is hardly stressed; according to the principle, engineers design I-shaped, box-shaped and other bridge forms, and the principle is to reduce the area of the middle part as much as possible, utilize materials to the maximum extent, reduce the dead weight of the bridge and make the best use of things; the inner core 2 is arranged in the middle between the two side plates 9, so that the poured bridge section is hollow, better mechanical property is achieved, materials can be saved, and the dead weight of the bridge is reduced; before pouring, the inner core 2 is placed at a designed position, the second telescopic rod 17 is controlled to extend, and the hinged upper plate 14, the hinged lower plate 15 and the hinged side plates are supported to form a designed shape; after pouring is finished, the second telescopic rod 17 is controlled to be shortened, the upper plate 14, the lower plate 15 and the side plates generate wrinkle deformation, the side plates move towards the middle, the outer wall of the inner core 2 is separated from poured concrete, and demolding is finished.
Furthermore, the side plates comprise a third plate 18 and a fourth plate 19 which are hinged, and the function is mainly to facilitate the movement of the inner core 2 to the middle during demoulding; meanwhile, the shape of the side edge of the inner core 2 can be controlled to be designed; the hinged position of the third plate 18 and the fourth plate 19 is also provided with a limiting device 31 for limiting the final angle of the third plate 18 and the fourth plate 19, and the limiting devices 31 are also arranged between the other third plates 18 and the lower plate 15, and the angles of the limiting devices 31 are adjusted according to the design drawing.
In a further optimized scheme, the upper plate 14 comprises two fifth plates 20 which are hinged to each other, and the output end of the second telescopic rod 17 abuts against the hinged positions of the two fifth plates 20. The upper plate 14 is divided into two fifth plates 20 which are symmetrically arranged, the two fifth plates 20 are hinged, the hinged position is arranged on the upper end face of the fifth plate 20, and the hinged position is connected with the second telescopic rod 17; when the second telescopic rod 17 extends, the two fifth plates 20 are pushed to be parallel, and finally the whole inner core 2 forms a designed shape; during demoulding, the second telescopic rod 17 is controlled to contract, so that the hinged ends of the two fifth plates 20 are lowered to drive the upper plate 14 to bend, and finally the whole inner core 2 contracts towards the middle to finish demoulding.
Further, before pouring, the outer wall of the inner core 2 is coated with a substance which is convenient for demoulding, including but not limited to talcum powder, so that subsequent demoulding is convenient.
According to a further optimized scheme, the fixing part 5 comprises three slide rails formed by a plurality of rails 21 which are fixedly arranged end to end, and the bottom surfaces of the rails 21 are fixedly connected to the top surfaces of the existing bridge sections 3; a limiting groove 22 is formed in the track 21, and the moving part 6 is connected with the limiting groove 22 in a sliding manner; a tail seat 23 is fixedly connected to one end of the rail 21 far away from the moving part 6, a third telescopic rod 24 is fixedly connected to one end of the tail seat 23 facing the moving part 6, and an output end of the third telescopic rod 24 is fixedly connected to the moving part 6. The fixing part 5 is used for fixing the whole suspension device 29 on the top surface of the existing bridge section 3 and providing a supporting force for the pouring module; the track 21 is fixedly arranged on the top surface of the existing bridge section 3 through bolts, the direction of a limiting groove 22 formed in the track 21 is along the direction of bridge pouring, and the moving part 6 is connected in the limiting groove 22 in a sliding manner; the third telescopic rod 24 is fixed on the rail 21 through the tailstock 23 and used for pushing the moving part 6 to move along the rail 21, so that the pouring module is driven to move, the positions in the bottom plate 8 and the side plate 9 are adjusted, and the mold is conveniently erected before pouring.
Furthermore, the corresponding surfaces of two adjacent rails 21 are provided with a mortise 32 and a tenon 33 for positioning and limiting, the mortise 32 and the tenon 33 are correspondingly arranged and are mutually embedded during installation; the end shapes of the mortise 32 and tenon 33 include, but are not limited to, a circle and a T-shape.
According to a further optimization scheme, the moving part 6 comprises a plurality of moving seats 25 connected in the limiting groove 22 in a sliding mode, supporting columns 26 are fixedly connected to the top surfaces of the moving seats 25, the top surfaces of the supporting columns 26 are fixedly connected with the same moving beam 27, side plates 9, far away from the moving beams 27, on the sliding rails on the two sides are fixedly connected with extension rods 28, and the tail ends of the extension rods 28 are fixedly provided with connecting assemblies 7; one end of the moving part 6 on the middle slide rail, which is far away from the third telescopic rod 24, is fixedly connected with the top surface edge of the bottom plate 8 through a connecting component 7. The movable base 25 moves in the limiting groove 22, and when the output end of the third telescopic rod 24 is fixedly connected to the movable base 25; a supporting column 26 at the top end of the moving seat 25 on the same sliding rail is fixedly connected with the same moving beam 27, and the moving seat 25 is driven by the third telescopic rod 24 to control the moving beam 27 to move back and forth; the sides of the movable beam 27 away from each other are fixedly connected with extension rods 28, and the bottom ends of the extension rods 28 are fixedly connected with suspension devices 29 for suspending the fixed bottom plate 8.
Furthermore, a construction platform convenient for construction personnel to stand is arranged at the edge position of the bottom plate 8.
In a further optimized scheme, the connecting assembly 7 comprises a suspension device 29 fixedly connected with the top surface of the bottom plate 8, a supporting device 30 is fixedly mounted on the bottom surface of the suspension device 29, and the bottom surface of the supporting device 30 is abutted to the ground. The suspension device 29 is used for suspending the bottom plate 8 on the bottom surface of the extension bar 28, for hoisting the bottom plate 8 and supporting the whole bridge section during casting; the supporting device 30 is used for supporting the bottom plate 8, one end of the supporting device is fixedly connected with the bottom plate 8, and the other end of the supporting device is in contact with the ground, so that the phenomenon that a pouring section cannot be connected due to the fact that the suspension device 29 is loosened and offset during pouring is avoided.
Further, a base with a large area is arranged at the bottom end of the supporting device 30, so that the pressure on the bottom surface is reduced; the concrete platform is arranged on the ground at a position corresponding to the base, so that the base is prevented from sinking into the soil.
Further, the suspension device 29 includes, but is not limited to, a hydraulic telescopic rod and a threaded steel bar, and the tensile strength is high, and the length adjustment is convenient.
A multi-section bridge pouring construction method comprises the following construction steps:
a. constructing a tree pier and an existing bridge section 3; the construction method comprises the following steps of constructing the bridge pier according to the design of a construction drawing, pouring a bridge section on the top surface of the bridge pier according to the designed shape to form the existing bridge section 3, and providing a fulcrum and a template for subsequent bridge pouring.
b. Mounting a suspension module; punching holes on the top surface of the existing bridge section 3 according to a design position, then laying the rails 21 into three sliding rails according to the design requirement, wherein the end parts of the sliding rails extend out of the edge of the existing bridge section 3 for a certain distance; the mobile seat 25 is mounted in the slide rail, the extension rod 28 is extended to both sides of the existing bridge section 3, finally the tail seat 23 is mounted in a proper position, the third telescopic rod 24 is fixed to the seat, and the output end of the third telescopic rod 24 is fixed to the mobile seat 25.
c. Installing the outer die component 1, adjusting the external arrangement of the outer die component 1 and recording the initial position z0(ii) a Firstly, the bottom plate 8 is hung at the lower end of the extension rod, then two side plates 9 are arranged at proper positions, and the first telescopic rod 10 is hinged on the top surface of the bottom plate 8. Controlling the suspension device 29 to drive the bottom plate 8 to rise, enabling the top surface of the bottom plate 8 to abut against the bottom surface of the existing bridge section 3, adjusting the third telescopic rod 24 to enable the bottom plate 8 to extend out of the existing bridge section 3 for a certain distance, and locking the movable seat 25 through the locking device 34; control the firstThe telescopic rod 10 adjusts the side plate 9 to ensure that the inner edge of the side plate 9 is propped against the outer side plate 9 of the existing bridge section 3; finally, the first telescopic rod 10 and the third telescopic rod 24 are locked and the initial position z of the bottom plate 8 at the moment is recorded0。
d. Ballast test, recording position z after ballast1(ii) a Uniform ballasting is carried out in the range between the two side plates 9 on the bottom plate 8, the ballasting weight is 110-120% of the weight of the new bridge section after pouring, and the position z of the bottom plate 8 is recorded1。
e. Ballast unloading and adjusting the position height z of the external mold component 11-z0(ii) a The load is removed and the suspension assembly is then controlled to raise the base plate 8 to return the top surface of the base plate 8 to the initial position by a distance z1-z0。
f. Installing the reinforcement assembly 16 and the core 2; binding reinforcing steel bars according to design requirements, and embedding prestressed pipes at proper positions on the reinforcing steel bars; installing the bound reinforcing steel bars to the designed position on the bottom plate 8, connecting the end of the reinforcing component 16 close to the existing bridge section 3 with the existing bridge section 3, then placing the inner core 2 on the top surface of the reinforcing component 16, controlling the extension of the second telescopic rod 17, expanding the inner core 2, making the shape of the inner core form the designed hollow bridge, and completing the erection of the mold.
g. Pouring concrete, and curing after pouring is finished; pouring concrete into the inner cavity of the erected mould by using a concrete tank truck, and vibrating during pouring to prevent cavitation; pouring and vibrating until the top surface of the concrete is higher than the top surface of the existing bridge section 3; the height of the concrete is calculated in advance, so that the top surface of the solidified concrete is flush with the top surface of the existing bridge section 3; after the pouring is finished, the concrete is naturally solidified, and the concrete is maintained at regular time to prevent the concrete from cracking.
h. Loading prestress; and after the strength of the concrete reaches 90-95% of the designed strength, carrying out prestress loading on a prestress anchor cable in the prestress pipe through a prestress pump, wherein the loading mode and the loading force are carried out according to the design requirement.
i. Disassembling the inner core 2 and the outer die assembly 1; controlling the second telescopic rod 17 to contract, so that the inner core 2 shrinks towards the middle, the outer wall of the inner core 2 is separated from the concrete, and then taking out the inner core 2; and after the inner core 2 is taken out, the first telescopic rod 10 is controlled to contract, the side plates 9 are separated from the concrete, and finally the supporting device 30 is controlled to contract, the suspension device 29 extends, the high-low plates are separated from the concrete, and demolding is finished.
g. Moving the fixed part 5, and repeating the steps a to i; punching the top surface of the new bridge section 4 again, installing a track 21, and connecting the track 21 with the existing track 21; then the tailstock 23 is loosened, the tailstock 23 is moved forwards and then fixed, then the moving part 6 is controlled to move to the next section for pouring mainly, the moving position is the same as the positioning method when a bridge section is poured, and the moving part 6 drives the pouring module to reach a new position; and (5) repeating the steps a to i again, and pouring a new bridge section 4. Repeating for a plurality of times until the bridge sections in the brackets of the two supporting columns 26 are butted successfully.
The bridge pouring device is simple in structure and convenient to use, can complete bridge pouring between two piers after one-time assembly, does not need to be mounted and dismounted for many times, saves a large amount of manpower and material resources, improves construction efficiency, reduces construction time and reduces construction period.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides an equipment is pour to multistage bridge which characterized in that: comprises that
The pouring module is used as a template for pouring the bridge section; the pouring module comprises an outer mold component (1), and an inner core (2) is arranged in the outer mold component (1); a new bridge section (4) is poured between the outer die component (1) and the inner core (2); a reinforcing component (16) is embedded and fixedly connected in the new bridge section (4);
a suspension module for suspending and fixing the overmold assembly (1); the suspension module comprises a fixing part (5), a moving part (6) is connected to the fixing part (5) in a sliding mode, and the moving part (6) is fixedly connected with the outer die assembly (1) through a connecting assembly (7).
2. The multi-segment bridge pouring apparatus of claim 1, wherein: the outer die assembly (1) comprises a bottom plate (8), and the top surface of the bottom plate (8) is abutted against the bottom surface of the existing bridge section (3); the side edge of the bottom plate (8) is fixedly connected with the moving part (6) through the connecting component (7); the top surface of the bottom plate (8) is symmetrically hinged with two side plates (9), and a first telescopic rod (10) is hinged between the side surface of the two side plates (9) away from each other and the top surface of the bottom plate (8); the inner surface of the side plate (9) is abutted against the outer side surface of the existing bridge section (3); the inner core (2) is arranged between the two side plates (9).
3. The multi-segment bridge pouring apparatus of claim 2, wherein: the side plates (9) comprise a first plate (11) and a second plate (12) which are hinged with each other, and the end surface of the first plate (11) far away from the second plate (12) is hinged with the top surface of the bottom plate (8); keep away from second board (12) one side rigid coupling of inner core (2) has articulated seat (13), the output of first telescopic link (10) with articulated seat (13) are articulated, the stiff end of first telescopic link (10) with bottom plate (8) top surface is articulated.
4. The multi-segment bridge pouring apparatus of claim 2, wherein: the inner core (2) comprises an upper plate (14), a lower plate (15) and side plates which enclose a circle; the reinforcing component (16) is arranged between the lower plate (15) and the bottom plate (8); a second telescopic rod (17) is arranged between the top surface of the lower plate (15) and the bottom surface of the upper plate (14); the side plates comprise a third plate (18) and a fourth plate (19) which are hinged with each other, the bottom edge of the third plate (18) is hinged with the lower plate (15), and the bottom edge of the fourth plate (19) is hinged with the upper plate (14).
5. The multi-segment bridge pouring apparatus of claim 4, wherein: the upper plate (14) comprises two fifth plates (20) which are hinged to each other, and the output end of the second telescopic rod (17) is abutted to the hinged positions of the two fifth plates (20).
6. The multi-segment bridge pouring apparatus of claim 2, wherein: the fixed part (5) comprises three slide rails formed by a plurality of rails (21) which are fixedly arranged end to end, and the bottom surfaces of the rails (21) are fixedly connected to the top surfaces of the existing bridge sections (3); a limiting groove (22) is formed in the track (21), and the moving part (6) is connected with the limiting groove (22) in a sliding mode; the track (21) is kept away from one end rigid coupling of removal portion (6) has tailstock (23), tailstock (23) orientation the one end rigid coupling of removal portion (6) has third telescopic link (24), the output of third telescopic link (24) with removal portion (6) rigid coupling.
7. The multi-segment bridge pouring apparatus of claim 6, wherein: the moving part (6) comprises a plurality of moving seats (25) which are connected in the limiting groove (22) in a sliding mode, supporting columns (26) are fixedly connected to the top surfaces of the moving seats (25), the top surfaces of the supporting columns (26) are fixedly connected with the same moving beam (27), extension rods (28) are fixedly connected to side plates (9) of the sliding rails on the two sides, which are far away from each other, of the moving beams (27), and the connecting component (7) is fixedly installed at the tail ends of the extension rods (28); the middle end, far away from the third telescopic rod (24), of the moving part (6) on the sliding rail is fixedly connected with the edge of the top surface of the bottom plate (8) through the connecting component (7).
8. The multi-segment bridge pouring apparatus of claim 2, wherein: coupling assembling (7) include with bottom plate (8) top surface rigid coupling have suspension device (29), the bottom surface fixed mounting of suspension device (29) has strutting arrangement (30), the bottom surface and the ground butt of strutting arrangement (30).
9. A multi-segment bridge pouring construction method, the multi-segment bridge pouring equipment according to any one of claims 1-8, characterized by comprising the following construction steps:
a. constructing a pier and an existing bridge section (3);
b. mounting a suspension module;
c. installing an external mold component (1), adjusting the external appearance of the external mold component (1), and recording an initial position z0；
d. Ballast test, recording the position z of the after-pressure1；
e. The ballast is unloaded, and the position height z of the external mold component (1) is adjusted1-z0；
f. Installing a reinforcing component (16) and the inner core (2);
g. pouring concrete, and curing after pouring is finished;
h. loading prestress;
i. disassembling the inner core (2) and the outer die assembly (1);
g. and (5) moving the fixed part, and repeating the steps a to i until the bridge construction is completed.
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| CN202111663847.4A CN114197318A (en) | 2021-12-31 | 2021-12-31 | Multi-section bridge pouring equipment and construction method thereof |
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| CN202111663847.4A CN114197318A (en) | 2021-12-31 | 2021-12-31 | Multi-section bridge pouring equipment and construction method thereof |
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