CN219752998U - Cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction - Google Patents
Cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 84
- 238000009415 formwork Methods 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 22
- 229910000831 Steel Inorganic materials 0.000 description 19
- 230000009194 climbing Effects 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction, which comprises the following components: the triangular support frame is detachably fixedly connected and assembled on the high pier; the hoisting platform is fixedly connected and assembled at the bottom end of the triangular support frame; the construction platform is fixedly connected and assembled at the top end of the triangular support frame; the main back edge frame comprises a back edge sliding cross frame, a back edge vertical frame and an inclined strut; the back ridge sliding cross frame can be positioned and assembled on the top end surface of the construction platform in a sliding way; the bottom end of the back edge vertical frame is hinged and assembled with one end of the back edge sliding cross frame, which is close to the high pier; the inclined stay bar is a fixable telescopic rod, one end of the inclined stay bar along the telescopic direction of the inclined stay bar is assembled in a switching way with the end face of one side of the back-stupefied vertical frame, which is opposite to the high pier, and the other end of the inclined stay bar along the telescopic direction of the inclined stay bar is assembled in a switching way with one end of the back-stupefied sliding cross frame, which is far away from the high pier; the template body is detachably fixedly connected with the back ridge stand. The template system solves the technical problem of the template system for mountain area high pier construction in the prior art.
Description
Technical Field
The utility model relates to the technical field of mountain area high pier cantilever template systems, in particular to a cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction.
Background
At present, a hydraulic sliding formwork, a turnover formwork, a climbing formwork and a cantilever formwork are mainly adopted for a formwork system for mountain area high pier construction. The sliding mode method has higher construction efficiency, but has the most fundamental quality hidden trouble, the appearance of the pier body is not glossy, and the linearity of the pier body is poor; the turnover formwork method is a large formwork construction method, the overall appearance quality of concrete is good, but the construction efficiency is relatively slow, the construction is carried out at the same time by a plurality of piers, the cost investment is also large, and the turnover use of mechanical equipment is not facilitated; the climbing formwork method is a construction method integrating the process characteristics of the large formwork and the sliding formwork, the overall appearance quality of the concrete is good, but the construction speed is still equivalent to that of the formwork turning method, and the construction progress is not facilitated; furthermore, for the traditional cantilever template method: the panel of cantilever template adopts ordinary plywood, and main back of body is the main component of connecting template, girder tripod and adjustable bracing, but, traditional cantilever template's design and construction technique quality are not high, and the template structure is assembled complicacy and is bulky, and is high to the site requirement and tower crane utilization ratio, and the security risk of operation and the use links such as installation, positioning and drawing of patterns and the receipts of template is very big, and the festival section construction cycle is longer, and the construction consumes highly, is unfavorable for the realization of engineering construction progress target.
Therefore, optimizing the template system, improving the adaptability of the template and improving the construction efficiency are important.
Disclosure of Invention
Therefore, the utility model provides a cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction, which aims to solve the technical problems of the template system for mountain area high pier construction in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a cantilever formwork architecture for large section double chamber hollow thin wall high pier construction, comprising:
the triangular support frame is used for being detachably fixedly assembled on the high pier;
the hoisting platform is fixedly connected and assembled at the bottom end of the triangular support frame;
the construction platform is fixedly connected and assembled at the top end of the triangular support frame;
the main back edge frame comprises a back edge sliding cross frame, a back edge vertical frame and an inclined strut; the back ridge sliding cross frame can be assembled on the top end surface of the construction platform in a positioning sliding manner; the bottom end of the back edge vertical frame is hinged and assembled with one end of the back edge sliding cross frame, which is close to the high pier; the inclined stay bar is a fixable telescopic rod, one end of the inclined stay bar along the telescopic direction of the inclined stay bar is in transfer fit with the end face of one side of the back-stupefied vertical frame, which is opposite to the high pier, and the other end of the inclined stay bar along the telescopic direction of the inclined stay bar is in transfer fit with one end of the back-stupefied sliding cross frame, which is far away from the high pier;
the template body is detachably fixedly connected with the back edge stand.
On the basis of the technical scheme, the utility model is further described as follows:
as a further scheme of the utility model, the triangular support frame comprises a support frame main body, a mounting embedded part and an embedded part support;
the support frame main part is triangle-shaped support frame body, and triangle-shaped support frame main part's vertical side straight line limit rigid coupling is equipped with buries a support, buries a support with separable lock rigid coupling assembly links to each other between the installation built-in fitting, makes support frame main part rigid coupling in the high mound through pre-buried installation built-in fitting to the high mound.
As a further scheme of the utility model, a first platform stand is fixedly connected and assembled on the side part of the support frame main body, which is far away from the high pier, corresponding to the construction platform.
As a further scheme of the utility model, the hoisting platform is fixedly assembled at the bottom end of the straight line edge of the vertical side of the triangular support frame main body, and the hoisting platform is arranged in a manner of being abutted against the high pier;
the construction platform is fixedly connected and assembled on the horizontal side straight line edge of the support frame main body.
As a further scheme of the utility model, the main back edge frame further comprises a back edge adjusting seat;
the back ridge stand comprises a plurality of assembling vertical rods and a plurality of assembling cross rods which are vertically assembled; the bottom ends of the plurality of assembling vertical rods are respectively hinged with one end, close to the high pier, of the back ridge sliding cross frame, and the plurality of assembling cross rods are respectively and slidably assembled on the plurality of assembling vertical rods;
the back edge adjusting seat is provided with a screw rod end, a plurality of positioning holes are vertically formed in the assembly vertical rod, and the screw rod end of the back edge adjusting seat extends through the assembly cross rod and then is assembled with one of the positioning holes of the assembly vertical rod in a threaded mode.
As a further scheme of the utility model, a plurality of back edge fasteners are fixedly connected and assembled on the end face of one side of the assembling cross bars, which is opposite to the assembling vertical bars, respectively;
the template body is detachably fixedly connected and assembled with a plurality of groups of connecting claws on the end face of one side of the assembling cross rod, and the connecting claws and the back edge fasteners are respectively buckled and fixedly connected in a one-to-one correspondence and detachable mode.
As a further aspect of the present utility model, the method further comprises:
the frame picking platform comprises a frame picking bottom plate and a second platform vertical frame;
the cantilever base plate is transversely fixedly connected and assembled at the top end of the template body, and the second platform vertical frame is vertically fixedly connected and assembled at one side end, far away from the template body, of the cantilever base plate.
As a further aspect of the present utility model, the method further comprises:
the spray maintenance system comprises a water storage tank, a water suction pump and a spray header;
the water tank is respectively communicated with the plurality of groups of spray heads through water pipes, the water pipes are provided with water pumps corresponding to the water tank, and the plurality of groups of spray heads are respectively wound on the hoisting platforms at the periphery side of the high pier.
As a further scheme of the utility model, the top end of the template body is fixedly connected with a plurality of groups of lifting hooks.
The utility model has the following beneficial effects:
the structure can be used for conveniently treating the defects of the pre-buried bolt holes and the concrete surface by means of the lifting platform, and can be used for completing concrete curing by utilizing the cooperation of the lifting platform and the spraying curing system, meanwhile, the template body is a detachable template and can be assembled between the template body and the main back ridge frame, so that the whole assembly and disassembly are more convenient, and templates with various sizes can be flexibly assembled to a certain extent. Compared with the traditional cantilever template, the cantilever template has the advantages of simplicity, convenience and rapidness in template assembly, low site requirement, low tower crane utilization rate, economy, practicability, high mechanization and standardization degree, reduced segment construction period, low safety risk and the like, and improves functional practicability.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will simply refer to the drawings required in the embodiments or the description of the prior art, and structures, proportions, sizes and the like which are shown in the specification are merely used in conjunction with the disclosure of the present utility model, so that those skilled in the art can understand and read the disclosure, and any structural modifications, changes in proportion or adjustment of sizes should still fall within the scope of the disclosure of the present utility model without affecting the effects and the achieved objects of the present utility model.
Fig. 1 is a schematic top view structure of a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction provided by an embodiment of the utility model after installation.
Fig. 2 is a schematic diagram of an overall side view structure of a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction after installation according to an embodiment of the utility model.
Fig. 3 is a schematic layout diagram of a spray curing system in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction, which is provided by the embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a single cantilever formwork set in climbing in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the present utility model.
Fig. 5 is a schematic diagram of an installation structure of a formwork body in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the utility model.
Fig. 6 is a schematic diagram of an assembly structure of a triangular support frame in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction, which is provided by the embodiment of the utility model.
Fig. 7 is a schematic diagram of an assembly structure of a tripod mounting and constructing platform in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the present utility model.
Fig. 8 is a schematic structural diagram of a state after a triangular support frame and a construction platform are installed in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the present utility model.
Fig. 9 is a schematic diagram of an assembly structure of a main back ridge frame, a formwork body and a cantilever formwork platform in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the utility model.
Fig. 10 is a schematic diagram of an axial measurement structure of a single cantilever formwork in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction according to an embodiment of the present utility model.
Fig. 11 is a schematic diagram of an assembly structure for installing an embedded part in a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction, which is provided by the embodiment of the utility model.
In the drawings, the list of components represented by the various numbers is as follows:
triangular support frame 1: the support frame body 11, the first platform vertical frame 12, the mounting embedded part 13, the mounting bolts 131, the climbing cones 132, the high-strength bolts 133 and the embedded part support 14;
hoisting the platform 2; a construction platform 3;
main back ridge frame 4: the back edge sliding cross frame 41, the back edge vertical frame 42, the assembly vertical rod 421, the assembly cross rod 422, the diagonal bracing support 43, the diagonal bracing 44, the back edge fastener 45 and the back edge adjusting seat 46;
template body 5: a connecting claw 51 and a hook 52;
and (3) a picking frame platform 6: a picking frame base plate 61 and a second platform stand 62;
spray maintenance system 7: a water storage tank 71, a water pump 72 and a spray header 73.
High pier a; and a backing beam b.
Detailed Description
Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationship may be altered or modified without materially altering the technical context.
As shown in fig. 1 to 10, the embodiment of the utility model provides a cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction, which comprises a triangular support frame 1, a hoisting platform 2, a construction platform 3, a main back ridge frame 4, a formwork body 5, a cantilever frame platform 6 and a spray curing system 7, and is used for more conveniently treating the defects of pre-buried bolt holes and concrete surfaces by means of the hoisting platform 2, and can complete concrete curing by utilizing the matching of the hoisting platform 2 and the spray curing system 7, and meanwhile, the formwork body 5 is a detachable formwork and can be assembled between the formwork body 5 and the main back ridge frame 4, so that the whole assembly is more convenient, and templates with various sizes can be flexibly assembled to a certain extent. Compared with the traditional cantilever template, the cantilever template has the advantages of simplicity, convenience and rapidness in template assembly, low site requirement, low tower crane utilization rate, economy, practicability, high mechanization and standardization degree, reduced segment construction period, low safety risk and the like, and improves functional practicability. The specific arrangement is as follows:
referring to fig. 1 to 5, the tripod stand 1 includes a stand body 11, a mounting embedded part 13 and an embedded part support 14; the support frame main body 11 is a triangular support frame main body, the vertical side straight line edge of the triangular support frame main body 11 is fixedly connected and assembled with the embedded part support 14, the embedded part support 14 is connected with the installation embedded part 13 through detachable fastening and fixedly assembling, and the installation embedded part 13 is embedded into the high pier a, so that the detachable fixedly assembling of the support frame main body 11 in the high pier a is realized.
The lifting platform 2 is fixedly connected and assembled at the bottom end of the vertical side straight line edge of the supporting frame main body 11 in a triangular mode, the lifting platform 2 and the high pier a are arranged in a leaning manner, so that bolt holes formed by embedding and dismantling are more convenient to process by means of the lifting platform 2, and concrete surface defects in the construction process can be effectively completed by utilizing the cooperation of the lifting platform 2 and the spraying maintenance system 7.
The construction platform 3 is fixedly connected and assembled on the horizontal side straight edge of the support frame main body 11, so that the whole functionality is ensured by taking the construction platform 3 as a working platform for completing main body construction.
Preferably, a first platform stand 12 is fixedly connected to a side portion of the support frame main body 11, which is opposite to the construction platform 3 and is far away from the high pier a, so that the construction safety of constructors on the construction platform 3 is effectively improved by means of the first platform stand 12 as a protective guardrail.
Referring to fig. 4 to 10, the main back edge frame 4 includes a back edge sliding cross frame 41, a back edge stand 42, an inclined support 43, an inclined support rod 44, a back edge fastener 45 and a back edge adjusting seat 46; the back edge sliding cross frame 41 is assembled on the top end surface of the construction platform 3 in a positioning sliding manner, so that the back edge sliding cross frame 41 can slide based on the construction platform 3; the bottom end of the back edge vertical frame 42 is hinged with one end of the back edge sliding cross frame 41, which is close to the high pier a, and the inclined support 43 is fixedly arranged on the end surface of one side of the back edge vertical frame 42, which is back to the high pier a; the diagonal brace 44 is a fixable telescopic rod, one end of the diagonal brace 44 along the telescopic direction of the diagonal brace 44 is assembled with the diagonal brace support 43 in a mutually-switching manner, the other end of the diagonal brace 44 along the telescopic direction of the diagonal brace 44 is assembled with one end of the back-ridge sliding cross frame 41 away from the high pier a in a mutually-switching manner, so that the telescopic length-adjusting positioning of the diagonal brace 44 can be utilized, the inclination angle of the back-ridge stand 42 can be effectively adjusted based on the back-ridge sliding cross frame 41, the inclination angle of the template body 5 can be flexibly adjusted, and the construction requirements of different concrete surfaces can be more flexibly adapted.
Specifically, the back rib stand 42 includes a plurality of vertical assembly bars 421 and a plurality of horizontal assembly bars 422 that are vertically assembled; the bottom ends of the plurality of assembling vertical rods 421 are respectively hinged with one end of the back ridge sliding cross frame 41, which is close to the high pier a, and the plurality of assembling cross rods 422 are respectively and slidably assembled on the plurality of assembling vertical rods 421; the back edge adjusting seat 46 is provided with a screw rod end, the assembly vertical rod 421 is vertically provided with a plurality of positioning holes, and the screw rod end of the back edge adjusting seat 46 extends through the assembly transverse rod 422 and then is assembled with one of the positioning holes of the assembly vertical rod 421 in a threaded manner, so that the assembly transverse rod 422 can be vertically adjusted and fixed based on the assembly vertical rod 421.
The end faces of one side, facing away from the assembling vertical rods 421, of the assembling cross rods 422 are fixedly connected with a plurality of back edge fasteners 45 respectively; the template body 5 is detachably fixedly connected and assembled with a plurality of groups of connecting claws 51 on the end face of one side facing the assembling cross rod 422, and the groups of connecting claws 51 are respectively buckled and fixedly connected with the back edge fasteners 45 in a one-to-one correspondence and detachably; the template body 5 is detachably arranged and fixed on the back edge vertical frame 42 in the same direction, and the template body 5 is used as a construction template for concrete pouring; the top end of the template body 5 is fixedly connected with a plurality of groups of lifting hooks 52, so that the lifting and climbing construction of the template body 5 is effectively realized by means of the lifting hooks 52 matched with an external crane.
The picking frame platform 6 comprises a picking frame bottom plate 61 and a second platform vertical frame 62; the frame bottom plate 61 is transversely fixedly connected and assembled to the top end of the template body 5, and the second platform stand 62 is vertically fixedly connected and assembled to one side end of the frame bottom plate 61 far away from the template body 5, so that construction flexibility can be further improved by means of the frame platform 6, and construction safety can be improved by means of the second platform stand 62.
Referring to fig. 1 to 3, the spray maintenance system 7 includes a water tank 71, a water pump 72 and a spray header 73; the water storage tank 71 is respectively communicated with the plurality of groups of the spray headers 73 through water pipes, the water pipes are provided with water pumps 72 corresponding to the water storage tank 71, the plurality of groups of the spray headers 73 are respectively wound on the hoisting platform 2 at the periphery side of the high pier a, and the spray maintenance system 7 arranged on the hoisting platform 2 is used for completing concrete maintenance.
The embodiment of the utility model also provides a construction method of the cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction, which comprises the following steps:
s1: constructing a stiff framework;
the method comprises the following steps: the method comprises the steps of arranging a stiff framework on the inner side of a main rib of a high pier a, embedding the stiff framework 2.5m and exposing the stiff framework 0.5m during construction of a bearing platform of the high pier a, arranging diagonal bracing on each section of stiff framework, welding each section of stiff framework into a sheet before installation of the stiff framework, hoisting the sheet in sequence in a slicing mode, and arranging transverse angle steel at a position 80cm above the top surface of the bearing platform.
More specifically, the method comprises the following steps: firstly, installing a first section of stiffness framework, connecting and fixing by using a welding mode, wherein the welding adopts a side bar welding, and the length of the side bar is not less than 49cm; secondly, installing the rest stiffening frameworks by the same method, connecting the frameworks into sheets by using a welding mode, and hoisting the frameworks into sheets in sequence.
S2: constructing pier body steel bars;
the method comprises the following steps: when the first section pier body is constructed, the bearing platform surface is used as an operation platform for binding the reinforcing steel bars.
After the vertical main reinforcements are transported to the site, binding 10-15 vertical main reinforcements into a bundle, binding hoisting steel ropes at the middle upper part of each bundle, taking the bottom part of each bundle with a steel basket, lifting to the pier top by using a tower crane, temporarily placing the steel basket on an operation platform, and symmetrically placing two bundles of steel bars on each operation platform at the same time; then manually lifting the joints one by one to carry out butt joint installation, and tightening the threaded joints by using a torque wrench until the threads of the threaded joints at the two ends are all screwed into the sleeve; after the connection and the positioning of the vertical main reinforcements are completed, the arrangement space of the horizontal stirrups is drawn by a stone pen on the vertical main reinforcements, the stirrups are bound one by one according to the determined position until the position is 30-40 cm higher than the top surface of the concrete of the pier body to be poured, and finally, the verticality of the reinforcement cage is checked by a total station instrument and correction treatment is carried out.
The steel bar installation platform is welded by angle steel of 100 multiplied by 10/Q235, the height is 4m, the steel bar installation platform is divided into two layers, a first layer of platform is arranged at the height of 1.5m, and a second layer of platform is arranged at the position of 3 m; the width of the platform is 80cm, the platform is welded by angle steel of 100 multiplied by 10/Q235, and phi 16 steel bar meshes are paved on the platform.
S3: pouring construction of the first section pier body;
the method comprises the following steps: before the first section is constructed, the template body 5 is assembled, the template body 5 is hoisted to a bearing platform after the assembly is completed, the position of the template body 5 is adjusted according to the ink lines on the top surface of the bearing platform, and the template body 5 is fixed by adopting a pull rod; the first section is poured at one time, solid section concrete is poured firstly, variable section concrete is poured after compaction by vibration, and embedded parts 13 are installed around the embedded 12 groups of high pier a pier bodies at the position 65cm below the top end of the template, namely, the position of the pier bodies at the position of 3.95m before die assembly; the mounting embedded part 13 consists of a mounting bolt 131, a climbing cone 132, a high-strength screw rod 133 and the like, the climbing cone 132 is fixed on the template body 5 by the mounting bolt 131, the high-strength screw rod 133 is screwed down after butter is smeared in the climbing cone 132 hole, the concrete is ensured not to flow into the screw thread of the climbing cone 132, a release agent is smeared on the outer side of the climbing cone 132 so as to facilitate the recovery of the climbing cone 132, an embedded part plate is screwed at the other end of the high-strength screw rod 133, and the conical surface faces the template body 5 and the climbing cone 132 in the opposite direction; if the mounting embedded part 13 collides with the steel bar, the steel bar is subjected to shifting treatment and then is clamped, and then the mounting embedded part 13 is arranged at a corresponding position before each concrete pouring.
S4: the triangular support frame 1 and the construction platform 3 are installed, the cantilever platform 6 is installed and the second section pouring construction is specifically as follows:
1) Installation tripod 1
Preparing two boards to be placed on the horizontal ground; ensuring that two groups of climbing cones 132 for installing the embedded part 13 are absolutely parallel to two corresponding axes, and enabling the included angle between the axes of the climbing cones 132 and the wood board connecting line to be 90 degrees; the triangular support frame 1 is buckled on the installation embedded part 13; the first platform stand 12 is mounted on the support frame main 11 and connected by steel pipe fasteners. The two groups of support frame bodies 11 are also connected by steel pipe fasteners.
2) Installation construction platform 3
The construction platform 3 is flat and firm, and is installed at the position where the construction platform collides with the component of the triangular support frame 1 through holes so as to ensure the use of the frame body, and whether the middle-to-middle distance between the two support frame main bodies 11 is the middle-to-middle distance between the climbing cones 132 when casting for the first time is corrected again.
3) Hoisting triangular support frame 1 and construction platform 3
After the strength of the first mould concrete reaches 15MPa, the spliced triangular support frame 1 and the construction platform 3 are integrally lifted, hung on an embedded mounting embedded part 13 which is embedded in the first high pier a pouring process, and inserted with a safety pin.
4) Mounting main back ridge frame 4 and picking frame platform 6
Firstly, four cushion beams b are arranged under a template body 5, then a main back edge frame 4 and a cantilever frame platform 6 are sequentially installed on the template body 5, the main back edge frame 4 is fixedly connected with the template body 5 through a back edge fastener 45, the cantilever frame platform 6 is firmly connected with the template body 5 through a steel pipe fastener, and a cable-stayed steel pipe is assembled.
5) Lifting template body 5, main back rib frame 4 and lifting frame platform 6
Lifting the assembled template body 5, the main back rib frame 4 and the frame lifting platform 6 integrally by using lifting equipment, stably hanging the assembled template body, the main back rib frame 4 and the frame lifting platform on the embedded mounting embedded part 13 which is buried in the first pouring process, and inserting a safety bolt; adjusting the angle by using the diagonal bracing, and correcting the template; and then the second section concrete casting is carried out by die assembly.
S5: climbing the formwork framework, and pouring third-section concrete
The method comprises the following steps: after the strength of the second section of concrete reaches 15MPa, the template body 5 is moved back based on the sliding of the main back ridge frame 4, the template body 5 is removed by using lifting equipment and stably placed on a flat ground, then the safety bolt at the position of the pull-out climbing cone 132 is lifted to the second layer of embedded climbing cone 132 by using lifting equipment, namely, the safety bolt is inserted above the climbing cone 132 corresponding to the initial installation of the template body 5; and binding a third mould steel bar after the triangular support frame 1 is installed, hoisting and installing the template to a backward moving platform, closing the mould and pouring the third mould concrete, and repeating the step S5 until the high pier a column is capped.
S6: construction of capping section
The method comprises the following steps: the pier body pier top solid section is 2m high, and because of no manhole, if pouring is performed by adopting a bracket method, the internal bracket cannot be removed, and construction material waste is large, so that a mode of paving a concrete precast slab at the top of the last section is adopted to seal the inner box first, and then pouring of concrete is performed.
Before the construction of the capping section, the upper section is a chamfer section on a 2.5m inner box, when the section is poured with concrete, phi 25 steel bars with the length of 45cm are pre-buried at intervals of 30cm at the position of 20cm below the top surface of the concrete, wherein 30cm is pre-buried, and 15cm is exposed to be used as a prefabricated cover plate installation support.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (9)
1. Cantilever formwork framework for large-section double-chamber hollow thin-wall type high pier construction, which is characterized by comprising:
the triangular support frame is used for being detachably fixedly assembled on the high pier;
the hoisting platform is fixedly connected and assembled at the bottom end of the triangular support frame;
the construction platform is fixedly connected and assembled at the top end of the triangular support frame;
the main back edge frame comprises a back edge sliding cross frame, a back edge vertical frame and an inclined strut; the back ridge sliding cross frame can be assembled on the top end surface of the construction platform in a positioning sliding manner; the bottom end of the back edge vertical frame is hinged and assembled with one end of the back edge sliding cross frame, which is close to the high pier; the inclined stay bar is a fixable telescopic rod, one end of the inclined stay bar along the telescopic direction of the inclined stay bar is in transfer fit with the end face of one side of the back-stupefied vertical frame, which is opposite to the high pier, and the other end of the inclined stay bar along the telescopic direction of the inclined stay bar is in transfer fit with one end of the back-stupefied sliding cross frame, which is far away from the high pier;
the template body is detachably fixedly connected with the back edge stand.
2. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 1, characterized in that,
the triangular support frame comprises a support frame main body, a mounting embedded part and an embedded part support;
the support frame main part is triangle-shaped support frame body, and triangle-shaped support frame main part's vertical side straight line limit rigid coupling is equipped with buries a support, buries a support with separable lock rigid coupling assembly links to each other between the installation built-in fitting, makes support frame main part rigid coupling in the high mound through pre-buried installation built-in fitting to the high mound.
3. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 2, characterized in that,
the horizontal side straight line edge of the support frame main body corresponds to one side part of the construction platform, which is far away from the high pier, and is fixedly connected with a first platform stand.
4. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 2, characterized in that,
the hoisting platform is fixedly connected and assembled at the bottom end of the vertical side straight line edge of the triangular support frame main body, and the hoisting platform is arranged in a manner of being abutted against the high pier;
the construction platform is fixedly connected and assembled on the horizontal side straight line edge of the support frame main body.
5. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 1, characterized in that,
the main back edge frame also comprises a back edge adjusting seat;
the back ridge stand comprises a plurality of assembling vertical rods and a plurality of assembling cross rods which are vertically assembled; the bottom ends of the plurality of assembling vertical rods are respectively hinged with one end, close to the high pier, of the back ridge sliding cross frame, and the plurality of assembling cross rods are respectively and slidably assembled on the plurality of assembling vertical rods;
the back edge adjusting seat is provided with a screw rod end, a plurality of positioning holes are vertically formed in the assembly vertical rod, and the screw rod end of the back edge adjusting seat extends through the assembly cross rod and then is assembled with one of the positioning holes of the assembly vertical rod in a threaded mode.
6. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 5, characterized in that,
the end faces of one side, back to the assembling vertical rods, of the assembling cross rods are fixedly connected with a plurality of back edge fasteners respectively;
the template body is detachably fixedly connected and assembled with a plurality of groups of connecting claws on the end face of one side of the assembling cross rod, and the connecting claws and the back edge fasteners are respectively buckled and fixedly connected in a one-to-one correspondence and detachable mode.
7. The cantilever formwork framework for large section double chamber hollow thin wall high pier construction of claim 1, further comprising:
the frame picking platform comprises a frame picking bottom plate and a second platform vertical frame;
the cantilever base plate is transversely fixedly connected and assembled at the top end of the template body, and the second platform vertical frame is vertically fixedly connected and assembled at one side end, far away from the template body, of the cantilever base plate.
8. The cantilever formwork framework for large section double chamber hollow thin wall high pier construction of claim 1, further comprising:
the spray maintenance system comprises a water storage tank, a water suction pump and a spray header;
the water tank is respectively communicated with the plurality of groups of spray heads through water pipes, the water pipes are provided with water pumps corresponding to the water tank, and the plurality of groups of spray heads are respectively wound on the hoisting platforms at the periphery side of the high pier.
9. The cantilever formwork framework for large section double chamber hollow thin wall type high pier construction of claim 1, characterized in that,
the top end of the template body is fixedly connected with a plurality of groups of lifting hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676479.5U CN219752998U (en) | 2023-03-31 | 2023-03-31 | Cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676479.5U CN219752998U (en) | 2023-03-31 | 2023-03-31 | Cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction |
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|---|---|
| CN219752998U true CN219752998U (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320676479.5U Active CN219752998U (en) | 2023-03-31 | 2023-03-31 | Cantilever template framework for large-section double-chamber hollow thin-wall type high pier construction |
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