CN115030046A - Hydraulic creeping formwork for hollow thin-wall pier and construction method thereof - Google Patents
Hydraulic creeping formwork for hollow thin-wall pier and construction method thereof Download PDFInfo
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- CN115030046A CN115030046A CN202210744034.6A CN202210744034A CN115030046A CN 115030046 A CN115030046 A CN 115030046A CN 202210744034 A CN202210744034 A CN 202210744034A CN 115030046 A CN115030046 A CN 115030046A
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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
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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Abstract
The invention discloses a hydraulic creeping formwork for a hollow thin-wall pier and a construction method thereof, wherein the hydraulic creeping formwork comprises a formwork assembly, an embedded part assembly, a hydraulic climbing assembly and a support assembly, and the hydraulic climbing formwork circularly climbs through the hydraulic self-creeping formwork: after concrete pouring is finished → the template assembly is dismantled → the wall-attached support is installed → the guide rail is lifted → the support assembly is climbed → the reinforcing steel bar is bound → the template assembly is cleaned, the demolding agent is brushed → the embedded part assembly is fixed on the template assembly → the template assembly is closed → concrete is poured, and the labor productivity, the appearance quality of the pier body and the safety are effectively improved.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a hydraulic creeping formwork for a hollow thin-wall pier and a construction method thereof.
Background
Along with the more and more comprehensive national infrastructure construction and the more and more social requirements on bridge construction, the bridge construction is often carried out in an open-air construction site, the geographic environment is complex, and a plurality of dangerous elements exist, so how to ensure that the construction can be safely and effectively unfolded in the bridge construction process becomes a problem that current bridge construction managers need to mainly research. The creeping formwork construction is just a construction process researched and improved under the background, is a formwork system which is attached to a building structure and ascends layer by layer along with the structural construction, integrates the advantages of slip form and turnover form construction, and needs to be improved in the aspects of labor productivity, appearance quality of a pier body and safety.
Disclosure of Invention
The invention aims to provide a hydraulic creeping formwork for a hollow thin-wall pier and a construction method thereof, which aim to solve the problems that the labor productivity, the appearance quality and the safety of a pier body are required to be improved in creeping formwork construction in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic climbing formwork for a hollow thin-wall pier comprises a formwork assembly, an embedded part assembly, a support assembly and a hydraulic climbing assembly;
the template assembly comprises a plurality of single templates which are fixedly connected with each other to form the template assembly;
the embedded part assembly comprises an embedded part plate, a high-strength screw, a mounting bolt, an upward-climbing cone and an embedded part support; one end of the high-strength screw rod is connected with the embedded plate, and the other end of the high-strength screw rod is connected with the climbing cone; one end of the climbing cone, which is far away from the embedded plate, is connected with the mounting bolt, the embedded support is arranged between the mounting bolt and the climbing cone, and the embedded assembly is arranged on the template assembly in advance;
the hydraulic climbing assembly comprises a guide rail, a wall-attached support, a cross beam hook head, a guide rail tail support and a hydraulic system, wherein the guide rail is connected with the embedded part support;
the support assembly comprises a main platform, a middle platform, a hoisting platform, a bearing tripod, a backward moving device and a truss support component; the main platform is positioned above the middle platform, the middle platform is positioned above the hanging platform, the bearing tripod is arranged between the main platform and the middle platform and is connected with the hook head of the cross beam, the backward moving device is arranged at the bottom of the main platform, the truss support component is arranged above the backward moving device, the backward moving device can drive the truss support component to move, and the template assembly is connected with the truss support component;
the hydraulic system is arranged between the guide rail and the bearing tripod and can lift the guide rail or the support assembly, and the hydraulic climbing formwork can climb on the pier body by alternately lifting the guide rail and the support assembly through the hydraulic system.
As a further technical scheme of the invention, the single template comprises a plurality of back ridges, a plurality of H-shaped beams, a plurality of connecting claws, a plurality of panels and a plurality of lifting hooks; the equal-interval two ends of the back ridge are aligned and arranged, the equal-interval two ends of the wood H-shaped beam are aligned and arranged on the back ridge and vertically crossed with the back ridge, the connecting claw is arranged at the crossed part of the wood H-shaped beam and the back ridge, the wood H-shaped beam and the back ridge can be fixedly connected through the connecting claw, the panel is fixedly connected with the wood H-shaped beam, and the lifting hooks are symmetrically arranged at the end parts of the different wood H-shaped beams.
As a further technical scheme, the hydraulic system comprises a hydraulic power unit, a hydraulic oil cylinder, an upper reversing box and a lower reversing box; the hydraulic power unit is connected with the hydraulic oil cylinder, the upper reversing box is connected with the hook head of the cross beam, and the lower reversing box is connected with the hydraulic oil cylinder.
As a further technical scheme, the truss supporting component comprises a steel bar binding platform, a concrete pouring platform and a construction platform which are sequentially arranged from top to bottom, the steel bar binding platform, the concrete pouring platform, the construction platform, a main platform, a middle platform and a hanging platform form a frame body of the support assembly, and a safety ladder stand is arranged between two adjacent layers of platforms.
As a further technical scheme, a washer is sleeved on the high-strength screw rod and is positioned between the mounting bolt and the climbing cone.
The invention also provides a hydraulic creeping formwork construction method for the hollow thin-wall pier, which comprises the following steps:
step one, template assembly: assembling prefabricated single templates into a template assembly meeting the requirements by a special assembly team according to the design requirements of drawings, connecting the single templates by using core belts, and fixing the single templates by using core belt pins;
step two, installing the pier body first section embedded part assembly: the method comprises the steps of forming a hole in a formwork assembly panel, fixing a climbing cone on the formwork assembly panel through the hole by using a mounting bolt, closing a die, pouring first-section concrete, dismounting the mounting bolt after pouring, withdrawing a formwork, exposing the climbing cone, mounting an embedded part support on the climbing cone through a stressed bolt, and fastening an attached wall support on the side wall of a pier body;
step three, installing a main platform: the spliced main platform frame bodies are integrally hoisted, stably hung on an embedded part support seat embedded during the first section pouring, inserted with a safety bolt, and connected integrally by steel beams on a single-side wall body to form an operation platform and carry out platform floor;
step four, installing a guide rail and a hydraulic system: the guide rail is well penetrated and buckled from the embedded part support, the guide rail hook is fixedly connected with the wall-attached support, the hydraulic system is connected between the guide rail and the bearing tripod, the upper reversing box is connected with the hook head of the cross beam, and the lower reversing box is connected with the hydraulic oil cylinder;
step five, mounting a hanging platform: hanging upright posts under the bearing triangular frame body, mounting channel steel on the inner upright post and the outer upright post, and laying a platform and protecting;
step six, installing a truss support assembly and a template assembly: integrally hoisting the assembled template assembly and truss support components, stably hanging the assembled template assembly and truss support components on an embedded part support buried during first-section pouring, inserting a safety bolt, adjusting the angle by utilizing an inclined strut, correcting the template assembly, forming every two truss support components into a whole by utilizing a steel beam, and installing a backward moving device;
seventhly, performing pier body circulating construction: the construction of the pier body is completed by the hydraulic self-climbing mold in a circulating climbing way, and the climbing flow of the hydraulic self-climbing mold is as follows: after concrete pouring is finished → the template assembly is dismantled → the wall-attached support is installed → the guide rail is lifted → the support assembly climbs → the reinforcing steel bar is bound → the template assembly is cleaned, the demolding agent is brushed → the embedded part assembly is fixed on the template assembly → the template assembly is closed → concrete is poured.
The invention has the beneficial effects that:
the novel hydraulic self-creeping formwork effectively shortens the construction period and improves the safety, thereby saving the cost and having good reference and guidance significance for the construction of similar mountain bridge high piers.
Except that the formwork is required to be modified due to the structural requirements (such as sudden reduction of the section or sudden change of the shape), the climbing formwork cannot fall to the ground all the time after being assembled once, so that the construction site is saved, and the damage of the formwork (particularly a panel) is reduced.
The omnibearing operating platform is provided, the construction unit does not need to waste materials and labor force for setting up the operating platform again, the constructor is easy to operate, and the safety factor is higher.
Compared with a climbing formwork, the climbing formwork is high in climbing speed and high in formwork standardization degree, and the whole structure is lifted by only one hydraulic oil pump and assembled at one time; in the climbing process, the work of formwork erecting, formwork removing, scaffold erecting, transportation and the like is not needed, the concrete is kept to be continuously poured, the construction speed is high, construction joints can be avoided, a large amount of templates, scaffold materials and labor force are saved, the labor intensity is reduced, the construction cost is reduced, and the construction safety is improved.
The templates are self-climbed, and are cleaned in situ, so that the hoisting frequency of the tower crane is greatly reduced.
The perpendicularity and the flatness of the pier body are easy to regulate and control, the structure construction error is small, the deviation correction is simple, the construction error can be eliminated layer by layer, and the accumulation of the construction error is avoided.
Drawings
FIG. 1 is a schematic side view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a hydraulic climbing assembly according to the present invention;
FIG. 3 is a schematic view of a monolithic template structure of the present invention;
FIG. 4 is a schematic view of the structure of the embedded part support of the present invention;
FIG. 5 is a schematic view of the structure of the insert assembly of the present invention;
FIG. 6 is a schematic view of the main platform assembly structure of the present invention;
FIG. 7 is a schematic structural view of the main platform of the present invention after being hoisted;
FIG. 8 is a flow chart of a construction method of the present invention;
fig. 9 is a schematic diagram of a hydraulic climbing formwork climbing process according to the present invention.
In the figure: 1. a template assembly; 2. a component mounting assembly; 3. a hydraulic climbing assembly; 4. a bracket assembly; 101. a single template; 201. a component embedding plate; 202. a high-strength screw; 203. installing a bolt; 204. climbing a cone; 205. an embedded part support; 206. a stressed bolt; 207. a gasket; 301. a guide rail; 302. attaching a wall support; 303. a beam hook; 304. a guide rail tail support; 305. a hydraulic system; 401. a main platform; 402. a middle platform; 403. hoisting a platform; 404. a load-bearing tripod; 405. moving the device backwards; 406. a truss support assembly; 1011. back corrugation; 1012. a woodwork H-beam; 1013. a connecting claw; 1014. a panel; 1015. a hook; 3052. a hydraulic cylinder; 3053. an upper reversing box; 3054. a lower reversing box; 4061. binding a steel bar platform; 4062. pouring the concrete into the platform; 4063. and (5) constructing a platform.
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.
As shown in fig. 1-9, a hydraulic climbing formwork for a hollow thin-wall pier is provided, which comprises a formwork assembly 1, an embedded assembly 2, a hydraulic climbing assembly 3 and a support assembly 4, and the circular climbing construction of the hydraulic climbing formwork is completed by the mutual cooperation of the formwork assembly 1, the embedded assembly 2, the hydraulic climbing assembly 3 and the support assembly 4.
The template assembly 1 comprises a plurality of single templates 101, and the single templates 101 are fixedly connected with one another to form the template assembly 1; as shown in fig. 3, the single formwork 101 comprises a plurality of back ridges 1011, a plurality of carpenter beams 1012, a plurality of connecting claws 1013, a plurality of panels 1014, and a plurality of hooks 1015; the equidistant both ends of back stupefied 1011 align to arrange, the equidistant both ends of carpenter's word roof beam 1012 align to set up on back stupefied 1011 and with back stupefied 1011 perpendicular intersection, connect claw 1013 sets up the intersection at carpenter's word roof beam 1012 and back stupefied 1011, connect claw 1013 can with carpenter's word roof beam 1012 and back stupefied 1011 fixed connection, panel 1014 and carpenter's word roof beam 1012 fixed connection, lifting hook 1015 symmetry sets up at different carpenter's word roof beam 1012 tip, adopt the core belt to connect between two templates 101, it is fixed with the core belt round pin, thereby guarantee template assembly 1's wholeness, make template assembly 1 atress more reasonable, reliable. The detachable template assembly 1 is convenient to assemble, and can be assembled into template assemblies 1 of various sizes in a certain range and degree; the template assembly 1 has high rigidity, is convenient to lengthen and heighten, and can be poured for more than ten meters at most once; the assembly of the template assembly 1 needs to organize a special assembly team and carry out assembly according to the design sequence of drawings, namely the design requirement, the installation process is responsible for a special person, and the template assembly can be formally used after being qualified through the acceptance of engineering, quality inspection and safety departments.
As shown in fig. 4 and 5, the embedded part assembly 2 comprises an embedded part plate 201, a high-strength screw 202, a mounting bolt 203, an upward-climbing cone 204, an embedded part support 205 and a stressed bolt 206; one end of a high-strength screw 202 is connected with the embedded plate 201, and the other end of the high-strength screw is connected with the creeping cone 204; one end of the climbing cone 204, which is far away from the embedded part plate 201, is connected with the mounting bolt 203, the embedded part support 205 is arranged between the mounting bolt 203 and the climbing cone 204, and the embedded part assembly 2 is arranged on the template assembly 1 in advance; a washer 207 is further sleeved on the preferred high-strength screw 202, and the washer 207 is located between the mounting bolt 203 and the climbing cone 204; the embedded part plate 201 is connected with the high-strength screw 202, so that the embedded part assembly 2 has a good tensile effect, and meanwhile, because the embedded part assembly 2 is small in size, the effects of saving materials and saving space are achieved, the problem that the embedded part touches a steel bar during formwork erecting is avoided, and the size, the length and the diameter of the embedded part plate 201 and the pull rod are calculated and determined according to the design of shearing resistance and tensile resistance; the climbing cone 204 and the mounting bolt 203 are used for positioning the embedded plate 201 and the high-strength screw 202, and before concrete pouring, the climbing cone 204 is fixed on the panel 1014 through the mounting bolt 203; as shown in fig. 2, the embedded part support 205 connects the guide rail 301 and the beam hook 303, and can guide the guide rail 301 when climbing, and the embedded part support 205 has strong vertical force, horizontal force and bending moment resistance under the combined action of construction live load, gravity load, wind load and other loads, and preferably, the double embedded part support 205 is selected.
As shown in fig. 2, the hydraulic climbing assembly 3 includes a guide rail 301, a wall-attached support 302, a beam coupler head 303, a guide rail tail support 304 and a hydraulic system 305, the guide rail 301 is connected with the embedded part support 205, the wall-attached support 302 is arranged at the middle section of the guide rail 301, the beam coupler head 303 is connected with the embedded part support 205, the guide rail tail support 304 is arranged at the bottom end of the guide rail 301, and the hydraulic system 305 is connected with the beam coupler head 3; the beam hook head 303 is connected with the vertical rod and the beam of the bearing tripod 404, when the support assembly 4 is in a static state, the beam hook head 303 is connected with the embedded part support 205 through the bearing bolt, so that the guide rail 301 can be guided to climb, and the climbing direction can be guided through the guide rail 301 when the support assembly 4 climbs; the wall-attached support 302 is connected with the upright rod of the bearing tripod 404, when the wall-attached support 302 is in a static state, the external force is completely transmitted to the concrete surface, and when the wall-attached support is in a climbing state, the external force is completely transmitted to the guide rail 301; the guide rail 301 is a climbing rail of the whole climbing formwork system and is formed by assembling and welding two channel steel and a group of ladder bars (the number of the ladder bars is determined according to the pouring height), the distance between the ladder bars is 300mm, the pawls of upper and lower yokes transmit load to the guide rail 301 and further to the embedded part assembly 2, the guide rail tail support 304 is connected with the guide rail 301, and in a static state, the guide rail tail support 304 supports the tail of the guide rail 301 to enable the guide rail 301 to keep a vertical state; when the guide rail 301 climbs, the guide rail tail support 304 is in a loose state; the hydraulic system 305 comprises a hydraulic power unit 3051, a hydraulic oil cylinder 3052, an upper reversing box 3053 and a lower reversing box 3054; hydraulic power unit 3051 is connected with hydraulic cylinder 3052, it is connected with crossbeam gib head 303 to go up switching-over box 3053, switching-over box 3054 is connected with hydraulic cylinder 3052 down, the automatic creeping formwork of hydraulic pressure is driven by hydraulic cylinder 3052, and convenient operation is swift, hydraulic pressure jacking power comes from hydraulic power unit 3051 of switch board control, hydraulic power unit 3051 is connected hydraulic cylinder 3052 and is realized creeping formwork and promote, valve through switch hydraulic cylinder 3052, also can realize the action of climbing separately of different support bodies. The upper reversing box 3053 and the lower reversing box 3054 are important parts for force transmission between the support assembly 4 and the guide rail 301, and the pawl directions of the upper reversing box 3053 and the lower reversing box 3054 are changed at the same time, so that the support assembly 4 and the guide rail 301 can climb alternately.
The support assembly 4 comprises a main platform 401, a middle platform 402, a hanging platform 403, a bearing tripod 404, a backward moving device 405 and a truss support component 406; the main platform 401 is located above the middle platform 402, the middle platform 402 is located above the hanging platform 403, the bearing tripod 404 is arranged between the main platform 401 and the middle platform 402, the bearing tripod 404 is connected with the beam hook 303, the backward moving device 405 is arranged at the bottom of the main platform 401, the truss supporting component 406 is arranged above the backward moving device 405, the backward moving device 405 can drive the truss supporting component 406 to move on the main platform 401, the template assembly 1 is connected with the truss supporting component 406, the truss supporting component 406 comprises a steel bar binding platform 4061, a concrete pouring platform 4062 and a construction platform 4063 which are sequentially arranged from top to bottom, the steel bar binding platform 4061, the concrete pouring platform 4062, the construction platform 4063, the main platform 401, the middle platform 402 and the hanging platform 403 together form a frame body of the support assembly 4, a safety ladder stand is arranged between the two adjacent layers of platforms, the steel bar binding platform 4061 is convenient for construction personnel to bind steel bars, the concrete pouring platform 4062 is convenient for constructors to pour concrete, the construction platform 4063 is convenient for penetrating and detaching the tension rod, the main platform 401 is used for installing, adjusting and installing the rear moving device 405 of the outside formwork assembly 1, the main platform 401 is larger than other platforms because the supporting and demolding space of the formwork assembly 1 is larger, the middle platform 402 is an operation platform of the hydraulic system 305 and used for placing hydraulic equipment and is totally enclosed, and the hanging platform 403 is a construction platform for modifying and detaching the climbing cone 204 and the embedded part support 205 for construction.
And the hydraulic creeping formwork construction method comprises the following steps:
step one, template assembly: assembling prefabricated single templates 101 into a template assembly 1 meeting the requirements by a special assembly team according to the design requirements of drawings, connecting the single templates 101 by using a core belt 102, and fixing by using a core belt pin 103;
step two, installing the pier body first section embedded part assembly 2: fixing the climbing cone 204 on the panel of the formwork assembly 1 from the back of the formwork assembly 1 by using a mounting bolt 203, forming a hole on the panel 1014 of the formwork assembly 1, fixing the climbing cone 204 on the panel 1014 of the formwork assembly 1 by using the mounting bolt 203 through the hole, screwing a high-strength screw rod after smearing grease in the hole of the climbing cone 204 to ensure that concrete cannot flow into the thread of the climbing cone 204, carrying out die assembly after properly displacing the steel bar if the embedded part assembly 2 collides with the steel bar, pouring first-section concrete, detaching the mounting bolt 203 after pouring, withdrawing the formwork assembly 1 to expose the climbing cone 204, mounting an embedded part support 205 on the climbing cone 204 by using a stressed bolt 206, fastening an attached wall support 302 on the side wall of the pier body, wherein the mounting bolt 203 is of M36 multiplied by 50 model, and the climbing cone 204 is of M36/D20 model.
Step three, the main platform 401 is installed: integrally hoisting the spliced main platform 401 frame body, stably hanging the spliced main platform 401 frame body on the embedded part support 205 embedded during the first section pouring, inserting a safety bolt, connecting the main platform 401 frame body on the single-side wall body into a whole by using a steel beam to form an operation platform, and paving the platform;
step four, installing the guide rail 301 and the hydraulic system 305: the guide rail 301 penetrates into the embedded part support 205 and is fastened, a hook of the guide rail 301 is fixedly connected with the wall-attached support 302, the hydraulic system 305 is connected between the guide rail 301 and the bearing tripod 404, the upper reversing box 3053 is connected with the beam hook head 303, and the lower reversing box 3054 is connected with the hydraulic oil cylinder 3052;
step five, installing the hanging platform 403: a vertical rod 4031 is hung under the bearing tripod 404, and channel steel is installed on the inner vertical rod 4031 and a platform and protection are laid;
step six, installing the truss support component 406 and the template assembly 1: integrally hoisting the assembled template assembly 1 and the truss support components 406, stably hanging the assembled template assembly 1 and the truss support components on the embedded part support 205 embedded during first-section pouring, inserting safety bolts, adjusting the angle by utilizing inclined struts, correcting the template assembly 1, enabling every two truss support components 406 to form a whole by utilizing steel beams, and installing a backward moving device 405;
step seven, pier body circulation construction: the construction of the pier body is completed by the hydraulic self-climbing mold in a circulating climbing way, and the climbing flow of the hydraulic self-climbing mold is as follows: after concrete pouring is finished → the template assembly 1 is dismantled → the wall-attached support 302 is installed → the lifting guide rail 301 → the climbing support assembly 4 → the steel bar is bound → the template assembly 1 is cleaned, the release agent is brushed → the embedded part assembly 2 is fixed on the template assembly 1 → the template assembly 1 is closed → concrete is poured, as shown in fig. 9.
The single main platform 401 in the second step can be assembled by preparing two boards about 300mmx2440mm as shown in fig. 6 and 7, and placing the boards on the horizontal ground according to the center-to-center distance between the crawlers 204. The central axes of the two creeping cones 204 are absolutely parallel, the included angle between the axes and the connecting line of the wood boards is 90 degrees, and the error of the two diagonal lines is not more than 2 mm. Two bearing tripods 404 are buckled on the axis of the wood board, the center-to-center distance of the bearing tripods 404 is equal to the center-to-center distance of the embedded creeping cones 204 when the bearing tripods are poured for the first time, the diagonal error of the bearing tripods 404 is not more than 2mm, the upright stanchions of the mounting platform are connected by steel pipe fasteners, the bearing tripods 404 are also connected by the steel pipe fasteners, and oblique-pulling steel pipes are added, the main platform 401 is required to be flat and firm, holes are formed at the position where the main platform conflicts with components, the use of the frame body is ensured, and whether the center-to-center distance of the two bearing tripods 404 is equal to the center-to-center distance of the embedded creeping cones 204 when the bearing tripods are poured for the first time is corrected again.
And seventhly, cleaning the template assembly 1 before closing the template assembly 1, brushing a release agent, and assembling the embedded part assembly 2 on the closed template assembly 1.
Hydraulic climbing formwork climbing principle
Hydraulic pressure is from climbing formwork's power source is self hydraulic pressure jacking system from area, hydraulic pressure jacking system includes hydraulic cylinder 3052, go up switching-over box 3053 and switching-over box 3054 down, go up switching-over box 3053 and the steerable lifting guide rail 301 of switching-over box 3054 down or promote support assembly 4, can make formation each other climb between support assembly 4 and guide rail 301 through hydraulic system 305, thereby make hydraulic pressure from climbing formwork steady step upwards climbing, hydraulic pressure need not other hoisting equipment from climbing formwork in the work progress, high operation speed, the factor of safety is high.
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, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The hydraulic climbing formwork for the hollow thin-wall pier is characterized by comprising a formwork assembly (1), an embedded part assembly (2), a hydraulic climbing assembly (3) and a support assembly (4);
the template assembly (1) comprises a plurality of single templates (101), and the single templates (101) are fixedly connected to form the template assembly (1);
the embedded part assembly (2) comprises an embedded part plate (201), a high-strength screw (202), a mounting bolt (203), a climbing cone (204), an embedded part support (205) and a stressed bolt (206); one end of a high-strength screw rod (202) is connected with the embedded plate (201), and the other end of the high-strength screw rod is connected with the climbing cone (204); one end of the climbing cone (204) far away from the embedded plate (201) is connected with the mounting bolt (203), the embedded support (205) is arranged between the mounting bolt (203) and the climbing cone (204), and the embedded assembly (2) is arranged on the template assembly (1) in advance;
the hydraulic climbing assembly (3) comprises a guide rail (301), an attached wall support (302), a cross beam hook head (303), a guide rail tail support (304) and a hydraulic system (305), wherein the guide rail (301) is connected with an embedded part support (205), the attached wall support (302) is arranged at the middle section of the guide rail (301), the cross beam hook head (303) is connected with the embedded part support (205), the guide rail tail support (304) is arranged at the bottom end of the guide rail (301), and the hydraulic system (305) is connected with the cross beam hook head (303);
the support assembly (4) comprises a main platform (401), a middle platform (402), a hanging platform (403), a bearing tripod (404), a backward moving device (405) and a truss support component (406); the main platform (401) is located above the middle platform (402), the middle platform (402) is located above the hanging platform (403), the bearing triangular support (404) is arranged between the main platform (401) and the middle platform (402), the bearing triangular support (404) is connected with the hook head (303) of the cross beam, the backward moving device (405) is arranged at the bottom of the main platform (401), the truss support component (406) is arranged above the backward moving device (405), the backward moving device (405) can drive the truss support component (406) to move on the main platform (401), and the template assembly (1) is connected with the truss support component (406);
the hydraulic system (305) is arranged between the guide rail (301) and the bearing tripod (404), the hydraulic system (305) can lift the guide rail (301) or the support assembly (4), and the guide rail (301) and the support assembly (4) are alternately lifted by the hydraulic system (305) so that the hydraulic climbing formwork can climb on the pier body.
2. The hydraulic climbing formwork for hollow thin-wall piers according to claim 1, characterized in that the single formwork (101) comprises a plurality of back ridges (1011), a plurality of I-beams (1012), a plurality of connecting claws (1013), a plurality of panels (1014) and a plurality of lifting hooks (1015); the two equidistant ends of the back edge (1011) are aligned, the two equidistant ends of the woodwork beam (1012) are aligned and arranged on the back edge (1011) and vertically crossed with the back edge (1011), the connecting claw (1013) is arranged at the crossed position of the woodwork beam (1012) and the back edge (1011), the connecting claw (1013) can fixedly connect the woodwork beam (1012) and the back edge (1011), the panel (1014) is fixedly connected with the woodwork beam (1012), and the lifting hooks (1015) are symmetrically arranged at the end parts of different woodwork beams (1012).
3. The hydraulic creeping formwork for hollow thin-walled piers according to claim 1, characterized in that the hydraulic system (305) comprises a hydraulic power unit, a hydraulic oil cylinder (3052), an upper reversing box (3053) and a lower reversing box (3054); the hydraulic power unit is connected with a hydraulic oil cylinder (3052), the upper reversing box (3053) is connected with the beam hook head (303), and the lower reversing box (3054) is connected with the hydraulic oil cylinder (3052).
4. The hydraulic creeping formwork for the hollow thin-wall pier according to claim 1, wherein the truss support assembly (406) comprises a reinforcement platform (4061), a concrete pouring platform (4062) and a construction platform (4063) which are sequentially arranged from top to bottom, the reinforcement platform (4061), the concrete pouring platform (4062), the construction platform (4063), the main platform (401), the middle platform (402) and the hanging platform (403) jointly form a frame body of the support assembly (4), and a safety crawling ladder is arranged between two adjacent layers of platforms.
5. The hydraulic creeping formwork for hollow thin-walled piers according to any one of claims 1-4, characterized in that the high-strength screw rod (202) is sleeved with a washer (207), and the washer (207) is positioned between the mounting bolt (203) and the creeping cone (204).
6. A construction method of a hollow thin-wall pier hydraulic creeping formwork is characterized by comprising the following steps:
step one, template assembly: assembling prefabricated single templates (101) into a template assembly (1) meeting the requirements by a special assembly team according to the design requirements of drawings, wherein the single templates (101) are connected by core belts and fixed by core belt pins;
step two, installing the pier body first section embedded part assembly (2): fixing a climbing cone (204) on a panel (1014) of a template assembly (1) from the back of the template assembly (1) by using a mounting bolt (203), closing the mold, pouring first-section concrete, dismounting the mounting bolt (203) after pouring is finished, removing the template assembly (1), exposing the climbing cone (204), mounting an embedded part support (205) on the climbing cone (204) through a stressed bolt (206), and fastening an attached wall support (302) on the side wall of the pier body;
step three, installing a main platform (401): integrally hoisting the spliced main platform (401), stably hanging the spliced main platform on an embedded part support (205) embedded during first-section pouring, inserting a safety bolt, connecting the main platform (401) on a single-side wall body into a whole by using a steel beam to form an operation platform, and paving a platform;
step four, installing a guide rail (301) and a hydraulic system (305): the guide rail (301) penetrates into the embedded part support (205) and is fastened, a hook of the guide rail (301) is fixedly connected with an attached wall support (302), a hydraulic system (305) is connected between the guide rail (301) and a bearing tripod (404), an upper reversing box (3053) is connected with a beam hook head (303), and a lower reversing box (3054) is connected with a hydraulic oil cylinder (3052);
step five, installing a hanging platform (403): a vertical rod is hung under the bearing tripod (404), and channel steel is arranged on the inner vertical rod and the outer vertical rod, and a platform and protection are laid;
sixthly, installing a truss support component (406) and the template assembly (1): integrally hoisting the assembled template assembly (1) and the truss support assemblies (406), stably hanging the assembled template assembly and the truss support assemblies on an embedded part support (205) embedded during first-section pouring, inserting safety bolts, adjusting angles by using inclined struts, correcting the template assembly (1), enabling every two truss support assemblies (406) to form a whole by using steel beams, and installing a backward moving device (405);
seventhly, performing pier body circulating construction: the construction of the pier body is completed by the circular climbing of the hydraulic self-climbing formwork.
7. The construction method of the hollow thin-wall pier hydraulic creeping formwork is characterized in that in the second step, holes are formed in the face plate (1014) of the formwork assembly (1), and the creeping cones (204) are fixed on the face plate (1014) of the formwork assembly (1) through the holes by mounting bolts (203).
8. The construction method of the hollow thin-wall pier hydraulic creeping formwork according to claim 6, wherein in the seventh step, the climbing flow of the hydraulic creeping formwork is as follows: after concrete pouring, → formwork assembly (1) is dismantled → wall-attached support (302) is installed → lifting guide rail (301) → climbing support assembly (4) → reinforcing steel bar binding → formwork assembly (1) cleaning, mold release agent brushing → embedded part assembly (2) is fixed on formwork assembly (1) → concrete pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744034.6A CN115030046A (en) | 2022-06-27 | 2022-06-27 | Hydraulic creeping formwork for hollow thin-wall pier and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744034.6A CN115030046A (en) | 2022-06-27 | 2022-06-27 | Hydraulic creeping formwork for hollow thin-wall pier and construction method thereof |
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| Publication Number | Publication Date |
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| CN115030046A true CN115030046A (en) | 2022-09-09 |
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| CN202210744034.6A Withdrawn CN115030046A (en) | 2022-06-27 | 2022-06-27 | Hydraulic creeping formwork for hollow thin-wall pier and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220307276A1 (en) * | 2016-04-08 | 2022-09-29 | Peri Se | Self-climbing system, self-climbing unit and method for moving such a self-climbing unit on a concrete building structure |
| CN115961781A (en) * | 2023-02-17 | 2023-04-14 | 中国水利水电第三工程局有限公司 | Rapid disassembly and assembly method for cantilever template |
| CN118004904A (en) * | 2024-04-08 | 2024-05-10 | 中铁三局集团有限公司 | Hoisting type construction work platform |
| CN118004904B (en) * | 2024-04-08 | 2024-06-25 | 中铁三局集团有限公司 | Hoisting type construction work platform |
-
2022
- 2022-06-27 CN CN202210744034.6A patent/CN115030046A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220307276A1 (en) * | 2016-04-08 | 2022-09-29 | Peri Se | Self-climbing system, self-climbing unit and method for moving such a self-climbing unit on a concrete building structure |
| CN115961781A (en) * | 2023-02-17 | 2023-04-14 | 中国水利水电第三工程局有限公司 | Rapid disassembly and assembly method for cantilever template |
| CN115961781B (en) * | 2023-02-17 | 2024-05-03 | 中国水利水电第三工程局有限公司 | Quick dismounting method for cantilever template |
| CN118004904A (en) * | 2024-04-08 | 2024-05-10 | 中铁三局集团有限公司 | Hoisting type construction work platform |
| CN118004904B (en) * | 2024-04-08 | 2024-06-25 | 中铁三局集团有限公司 | Hoisting type construction work platform |
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Application publication date: 20220909 |