CN114396158A - Rapid graded formwork dismantling system and construction method - Google Patents
Rapid graded formwork dismantling system and construction method Download PDFInfo
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- CN114396158A CN114396158A CN202111598748.2A CN202111598748A CN114396158A CN 114396158 A CN114396158 A CN 114396158A CN 202111598748 A CN202111598748 A CN 202111598748A CN 114396158 A CN114396158 A CN 114396158A
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- 238000009415 formwork Methods 0.000 title claims abstract description 108
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000012545 processing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- -1 battens Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
Abstract
The invention discloses a quick graded formwork dismantling system and a construction method, wherein the system comprises a formwork component, a formwork bracket and a supporting component, the formwork bracket is arranged between the formwork component and the supporting component, and the formwork component comprises an early dismantling formwork and a later dismantling formwork; the supporting component comprises an early-dismantling supporting rod and a later-dismantling supporting rod, the early-dismantling supporting rod corresponds to the early-dismantling formwork and is abutted against the formwork bracket, and the later-dismantling supporting rod corresponds to the later-dismantling formwork. The early-dismantling formwork, the early-dismantling support rod, the later-dismantling support rod and the later-dismantling formwork are arranged to form a completely independent early-dismantling system and later-dismantling system, the keel, the secondary keel and the early-dismantling formwork of the early-dismantling system are completely dismantled during first-time formwork dismantling, the later-dismantling system is used as a support after the first-time formwork dismantling, the early-dismantling system and the later-dismantling system are not connected with each other, the formwork dismantling process has no influence on the later-dismantling system, the construction difficulty is reduced, meanwhile, the disturbance to the later-dismantling system during the first-time formwork dismantling process is avoided, and the concrete pouring quality is improved.
Description
Technical Field
The invention belongs to the technical field of concrete formworks, and particularly relates to a formwork system capable of being rapidly dismantled in a grading manner and a construction method.
Background
At present, many new processes such as aluminum templates, large steel molds and the like also appear in template engineering, but a large number of wood templates still need to be adopted in nonstandard structure construction, and the problems of processing loss, residual value recovery and environmental protection are accompanied by the adoption of the wood templates, so that the problem of irreducible safety and economy of template assembly design is provided.
According to the related requirements of concrete structure engineering construction specification GB50666, the formwork stripping conditions of a plate with a span of more than 2 meters and a beam, an arch and a shell with any span at least reach 75% of the designed strength of concrete. If proper technical measures are adopted, the span of the plate member support seat occupying the formwork turnover material with larger specific gravity is reduced to be within 2 meters, and the supporting formwork can be dismantled when the concrete strength reaches 50%.
In the prior early-dismantling construction of the template, according to the technical specification of the early-dismantling construction of the template in Beijing, an early-dismantling device, namely an improved supporting rod is introduced, during the construction, a supporting plate of the supporting rod is directly supported on a top plate template, a bracket supports a main keel, and an upper adjusting nut and a lower adjusting nut are screwed down to connect the template, the main keel and a vertical rod frame body into a whole; when the formwork is dismantled for the first time, the bracket is put down, the formworks between the main keel and the secondary keel and the formworks between the main keel and the secondary keel are dismantled, part of formworks supported by the supporting plates are reserved, and the second dismantling is carried out after the dismantling conditions meeting the standard requirements reappear. The early-dismantling formwork has the advantages that the formwork is erected at one step, the material investment is not increased, and the integrity is good, but the formwork early-dismantling construction system also has the following problems: 1. the arrangement distance of the support rods is small, the design position of the reserved belt is not flexible, and the processing amount of the template is large; 2. the improved support rod has higher manufacturing cost; 3. the supporting plate of the supporting rod is in point contact with the template, and the template is stressed unevenly; 4. when the formwork is removed for the first time, all the supporting rods need to be adjusted, the stability of the supporting rods needing to be reserved is influenced to a certain extent, and the concrete pouring effect is further influenced; 5. when the template is dismantled, the operation force needs to be controlled, so that the construction method is limited, and the construction difficulty is increased.
In contrast, a set of new construction method is summarized through research by combining the past construction experience, and the construction target of early dismantling of the top plate formwork is achieved by completely utilizing construction materials commonly used in the current formwork construction without introducing an early dismantling device.
Disclosure of Invention
The invention aims to provide a quick and graded formwork dismantling system and a construction method, and aims to solve the problems that the first formwork dismantling of the formwork dismantling system and the construction method in the background technology affects the retention of the stability of a support system, the construction cost is high, the formwork dismantling construction difficulty is high, and the stress of a formwork is uneven.
In order to achieve the purpose, the invention provides the following technical scheme:
a template system capable of being disassembled in a rapid grading mode comprises a template assembly, a template bracket and a supporting assembly, wherein the template bracket is arranged between the template assembly and the supporting assembly, the template assembly comprises an early disassembling template and a later disassembling template, the later disassembling template comprises a series of reserved plate strips which are arranged in a front-back through manner, and the reserved plate strips are arranged at intervals in the left-right direction; the early-dismantling template comprises a series of template units, wherein the template units are arranged between two adjacent reserved plate strips and are seamlessly spliced with the reserved plate strips to form a complete template;
the supporting component comprises an early-dismantling supporting rod and a later-dismantling supporting rod, the early-dismantling supporting rod corresponds to an early-dismantling formwork and is abutted against the formwork bracket, and the later-dismantling supporting rod corresponds to an later-dismantling formwork.
Further, the formwork bracket comprises a main keel, a secondary keel and an additional keel; the secondary keels are arranged in a penetrating and parallel mode along the front-back direction, and the tops of the secondary keels are abutted to the template assemblies; the main keel is arranged at the bottom of the secondary keel in a penetrating manner along the left-right direction; the additional keel is correspondingly arranged below the reserved plate strip of the rear dismantling template and between the two secondary keels; the early-dismantling support rod is connected with the lower part of the main keel in an abutting mode, and the later-dismantling support rod is connected with the lower part of the additional keel in an abutting mode.
Further, the retaining plate strip is fixedly connected with the additional keel.
Furthermore, the early-dismantling support rods are arranged at intervals left and right along the main keel, and are connected through cross rods to form an independent early-dismantling support system; the back is torn open the bracing piece and is set up along additional fossil fragments fore-and-aft interval, tear the bracing piece after and connect through the horizontal pole and form independent back and tear supporting system open between the bracing piece.
Further, the width of the reserved plate strip is not more than 170mm, the width of the template unit is not more than 2m, and the thickness of the reserved plate strip is the same as that of the template unit.
Further, the additional keel and the secondary keel are the same size.
Furthermore, the plate bodies of the reserved plate strips are arranged in parallel in the front-back direction, the additional keels are arranged along the central lines of the plate bodies of the reserved plate strips, the bottoms of the left end and the right end of each reserved plate strip are provided with secondary keels, and the distance between the central lines of every two adjacent reserved plate strips is not more than 2 meters.
Furthermore, the early-dismantling support rod and the later-dismantling support rod are identical in structure and respectively comprise a support rod and an adjustable support which are connected with each other, and the adjustable support is arranged at the top of the support rod.
Further, the top support of the adjustable support is a U-shaped support.
A construction method for rapidly dismantling a formwork system in a grading manner comprises the following steps:
designing an integral scheme, wherein the integral scheme is designed according to construction requirements, and the integral scheme comprises the sizes, the number, the arrangement positions and the like of a template assembly, a template bracket and a support assembly;
step two, erecting an early-dismantling support rod, and adjusting an adjustable support of the early-dismantling support rod to the height of the bottom of a preset main keel;
step three, supporting a rear dismantling support rod, and adjusting an adjustable support of the rear dismantling support rod to the bottom height of a preset additional keel, wherein the distance between the left and right adjacent support rods is not more than 2 m;
laying a template bracket, and laying a main keel, a secondary keel and an additional keel in sequence, wherein the additional keel is arranged corresponding to the central line of the rear dismantling support rod;
laying an early-dismantling template and a rear-dismantling template, arranging template units along the edges, arranging reserved plate strips at positions corresponding to the additional keels, then continuously laying the template units, circulating in sequence, and processing and cutting the template units when the residual size of the tail end is smaller than the size of the template units to enable the template units to be adaptive to the residual size;
step six, reinforcing the supporting component, and respectively arranging a cross rod between the early-dismantling supporting rods and the supporting rods of the later-dismantling supporting rods;
step seven, pouring concrete;
step eight, removing the formwork for the first time, when the strength of concrete reaches 50% and is not less than 20MPa, removing the cross rod of the early-removing support rod, adjusting the adjustable support, reducing the height of the adjustable support, and then removing the main keel, the secondary keel and the early-removing formwork in sequence;
and ninthly, removing the formwork for the second time, when the concrete strength meets the standard requirement, removing the cross rod of the supporting rod after the disassembly, adjusting the adjustable support, reducing the height of the adjustable support, and then removing the additional keel and the post-removal formwork in sequence.
The invention has the following beneficial effects:
1. the invention provides a quick and graded formwork dismantling system and a construction method, wherein an early dismantling formwork, an early dismantling support rod, a later dismantling support rod and an later dismantling formwork are arranged to form a completely independent early dismantling system and an after dismantling system, when a formwork is dismantled for the first time, a keel, a secondary keel and the early dismantling formwork of the early dismantling system are completely dismantled, the after dismantling system is used as a support after the formwork is dismantled for the first time, the early dismantling system and the after dismantling system are not connected with each other, the formwork dismantling process has no influence on the after dismantling system, the construction difficulty is reduced, meanwhile, the disturbance to the after dismantling system during the first formwork dismantling process is avoided, and the concrete pouring quality is improved.
2. Compared with the formwork design using the early-dismantling device, the formwork system and the construction method provided by the invention have the advantages that the distance between the vertical rods of the plate strip is only required to be ensured to be not more than 2m, the arrangement position of the formwork system is not limited by the position of the supporting rod, the formwork system does not need to be arranged in a matching manner with the early-dismantling device, the whole formwork can be arranged in an auxiliary manner, the formwork machining amount is small, and the construction cost is greatly reduced.
3. According to the rapid graded formwork dismantling system and the construction method, the additional keel is arranged under the retaining plate band, the strength of the retaining plate band is enhanced, the supporting component is respectively contacted with the main keel and the additional keel, point contact is converted into line contact, and the stress of the formwork component is uniform.
Drawings
FIG. 1 is a schematic overall structure diagram of a graded demolition formwork system according to the present invention;
FIG. 2 is a three-dimensional structure diagram of a graded demolition template system according to the present invention
Figure 3 is a schematic structural view of a main runner and a cross runner according to the present invention;
fig. 4 is a schematic structural diagram of the support rod and the adjustable support according to the present invention.
In the figure: 1-template component, 11-early-dismantling template, 12-later-dismantling template, 2-template bracket, 21-main keel, 22-secondary keel, 23-additional keel, 3-supporting component, 31-early-dismantling supporting rod, 32-later-dismantling supporting rod, 311-supporting rod and 312-adjustable supporting rod.
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. 1-3, the quick-stage dismantling formwork system provided by the invention comprises a formwork assembly 1, a formwork bracket 2 and a support assembly 3, wherein the formwork assembly 1 is arranged on the support assembly 3 through the formwork bracket 2. The template assembly 1 comprises an early-dismantling template 11 and a later-dismantling template 12, the early-dismantling template 11 comprises a series of template units, the later-dismantling template 12 comprises a series of reserved plate strips, the reserved plate strips are arranged at intervals along the left and right direction, the template units are arranged between two adjacent reserved plate strips, the early-dismantling template 11 and the later-dismantling template 12 are tightly arranged to form a pouring template, and concrete leakage is avoided; the template bracket 2 comprises a main keel 21, a secondary keel 22 and an additional keel 23, wherein the secondary keel 22 is arranged at the bottom of the early-dismantling template 11 along the front-back direction, the additional keel 23 is arranged at the bottom of the reserved plate strip along the front-back direction to increase the rigidity of the reserved plate strip, the additional keel 23 is not contacted with the early-dismantling template 11, the secondary keel 22 and the additional keel 23 are parallel to each other, and the main keel 21 is arranged at the bottoms of the secondary keel 22 and the additional keel 23 along the left-right direction; the supporting component 3 comprises an early-dismantling supporting rod 31 and a later-dismantling supporting rod 32, the early-dismantling supporting rod 31 is vertically arranged at the bottom of the main keel 21 and provides support for early-dismantling the formwork 11, and the later-dismantling supporting rod 32 is vertically arranged at the bottom of the additional keel 23 and provides support for later-dismantling the formwork 12.
The reserved plate strip is fixedly connected with the additional keel 23, the thickness of the reserved plate strip is the same as that of the template unit, and the sizes of the additional keel 23 and the secondary keel 22 are the same.
The reserved plate strips are arranged at even intervals, plate bodies of the reserved plate strips are arranged in the front-back direction and are parallel to each other, the additional keels 23 are arranged along the central lines of the reserved plate strip plates, the left end and the right end of the reserved plate strips are in contact with the secondary keels 22, and the stability of the reserved plate strips is enhanced.
As shown in fig. 4, the early-dismantling support rod 31 and the later-dismantling support rod 32 have the same structure, and both include a support rod 311 and an adjustable support 312 which are connected with each other, the adjustable support 312 is arranged at the top of the support rod 311, preferably, the top support of the adjustable support 312 is a U-shaped support, and the width of the U-shaped support of the early-dismantling support rod 31 is greater than the width of the main keel 21 and smaller than the distance between two adjacent secondary keels 22; the width of the U-shaped support of the rear dismantling support rod 32 is larger than that of the additional keel 23; the support rods 311 of the early-dismantling support rod 31 are connected and reinforced through cross rods to form an independent early-dismantling support system; the support rods 311 of the rear dismantling support rod 32 are connected and reinforced through cross rods to form an independent rear dismantling support system; the early-dismantling support rod 31 and the later-dismantling support rod 32 are not connected with each other; the number of the cross rods on each supporting rod 311 is not less than 2, so that the overall stability of the supporting component 3 is enhanced.
The early dismantling support rods 31 are arranged at regular intervals along the length direction of the main keel 21, and the late dismantling support rods 32 are arranged at regular intervals along the length direction of the additional keel 23.
The main keel 21, the secondary keel 22 and the additional keel 23 can be steel pipes, square steel, battens, steel clad wood and the like. The support bar 311 may be a steel pipe support, a wheel buckle support, a disc buckle support, or the like.
The left-right spacing of the rear dismantling support rods 32 is not more than 2m, so that the spacing of the central lines of the reserved plate strips is not more than 2m, and considering that the specifications of the wood templates in the current material market are mainly 1830mm multiplied by 915mm and 2440mm multiplied by 1220mm, in order to reduce the processing amount as much as possible, the whole plate specification is directly laid, the 1830mm multiplied by 915mm template is optimal, and therefore, the width of the reserved plate strips is preferably within 170 mm.
A construction method for rapidly dismantling a formwork system in a grading manner comprises the following steps:
designing an integral scheme according to construction requirements, wherein the integral scheme comprises the sizes, the number, the arrangement positions and the like of a template assembly 1, a template bracket 2 and a support assembly 3;
step two, erecting the early-dismantling support rod 31, laying the support rods 311 according to the integral scheme, and then adjusting the adjustable support 312 of the early-dismantling support rod 31 to the height of the bottom of the preset main keel 21;
step three, erecting the rear dismantling support rods 32, arranging the support rods 311 according to the integral scheme, then adjusting the adjustable support 312 of the rear dismantling support rods 32 to the bottom height of the preset additional keel 23, wherein the distance between the support rods 311 of the left and right adjacent rear dismantling support rods 32 is not more than 2 m;
fourthly, laying the template bracket 2, laying a main keel 21, a secondary keel 22 and an additional keel 23 in sequence, wherein the secondary keel 22 is arranged corresponding to the early-dismantling support rod 31, and the additional keel 23 is arranged corresponding to the central line of the later-dismantling support rod 32;
laying an early-dismantling formwork 11 and a rear-dismantling formwork 12, arranging formwork units along the edges, arranging reserved plate strips at positions corresponding to the additional keels 23, then continuously laying the formwork units, sequentially circulating until the laying is finished, and processing and cutting the formwork units to enable the formwork units to be adaptive to the residual sizes when the residual sizes of the tail ends are smaller than the sizes of the formwork units;
step six, reinforcing the support component 3, and respectively reinforcing the cross rods by the early-dismantling support rod 31 and the later-dismantling support rod 32;
step seven, pouring concrete;
step eight, removing the formwork for the first time, when the strength of the concrete reaches 50% and is not less than 20MPa, removing the cross rod of the early-removing support rod 31, adjusting the adjustable support 312, reducing the height of the adjustable support, and then removing the main keel 21, the secondary keel 22 and the early-removing formwork 11 in sequence;
and step nine, secondary form removal, namely when the concrete strength meets the standard requirement, removing the cross rods of the rear support rods 32, adjusting the adjustable support 312, reducing the height of the adjustable support, and then sequentially removing the additional keels 23 and the rear form removal plates 12.
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 (10)
1. A template system capable of being disassembled in a rapid grading mode comprises a template component (1), a template bracket (2) and a supporting component (3), wherein the template bracket (2) is arranged between the template component (1) and the supporting component (3), and is characterized in that the template component (1) comprises an early-disassembling template (11) and a later-disassembling template (12), the later-disassembling template (12) comprises a series of reserved plate strips which are arranged in a front-back through manner, and the reserved plate strips are arranged at intervals in the left-right direction; the early-dismantling template (11) comprises a series of template units, and the template units are arranged between two adjacent reserved plate strips and are seamlessly spliced with the reserved plate strips to form a complete template;
the supporting component (3) comprises an early-dismantling supporting rod (31) and a later-dismantling supporting rod (32), the early-dismantling supporting rod (31) corresponds to the early-dismantling formwork (11) and is abutted against the formwork bracket (2), and the later-dismantling supporting rod (32) corresponds to the later-dismantling formwork (12).
2. A quick grading demolition formwork system according to claim 1, characterized in that the formwork bracket (2) comprises main runners (21), cross runners (22) and additional runners (23); the secondary keels (22) are arranged in a penetrating and parallel mode along the front-back direction, and the tops of the secondary keels are abutted to the template assembly (1); the main keel (21) is arranged at the bottom of the secondary keel (22) in a penetrating manner along the left-right direction; the additional keel (23) is correspondingly arranged below the reserved plate strip of the rear dismantling template (12) and between the two secondary keels (22); the early-dismantling support rod (31) is abutted under the main keel (21), and the later-dismantling support rod (32) is abutted under the additional keel (23).
3. A rapid grading demolition formwork system according to claim 2, characterized in that the retaining strip is secured with additional runners (23).
4. The formwork system for rapid graded demolition according to claim 2, wherein the early demolition supporting rods (31) are arranged at intervals left and right along the main keel (21), and the early demolition supporting rods (31) are connected through cross rods to form an independent early demolition supporting system; the back is torn open bracing piece (32) and is set up along additional fossil fragments (23) fore-and-aft interval, tear the bracing piece after and connect through the horizontal pole and form and tear the braced system after independently between (32).
5. The system for rapidly and hierarchically dismantling the formwork according to claim 1, wherein the width of the retained slab band is not more than 170mm, the width of the formwork unit is not more than 2m, and the thickness of the retained slab band is the same as that of the formwork unit.
6. A quick grading demolition formwork system according to claim 2, characterized in that the additional runners (23) and the cross runners (22) are of the same size.
7. The quick graded demolition template system according to claim 2, characterized in that the plate bodies of the reserved plate strips are arranged in parallel in the front-rear direction, the additional keels (23) are arranged along the center lines of the plate bodies of the reserved plate strips, the bottoms of the left and right ends of the reserved plate strips are provided with secondary keels (22), and the distance between the center lines of two adjacent reserved plate strips is not more than 2 m.
8. The quick and staged demolition formwork system according to claim 1, wherein the early demolition supporting bar (31) and the late demolition supporting bar (32) are identical in structure and each comprise a supporting bar (311) and an adjustable brace (312) connected to each other, and the adjustable brace (312) is disposed on top of the supporting bar (311).
9. A quick staging formwork system according to claim 8 wherein the top rest of the adjustable brace (312) is a U-shaped rest.
10. The construction method for rapidly and hierarchically dismantling the formwork system according to any one of claims 1 to 9, comprising the steps of:
designing an overall scheme, wherein the overall scheme is designed according to construction requirements, and comprises the sizes, the number, the arrangement positions and the like of a template assembly (1), a template bracket (2) and a support assembly (3);
step two, erecting the early-dismantling support rod (31), and adjusting an adjustable support (312) of the early-dismantling support rod (31) to the height of the bottom of the preset main keel (21);
step three, erecting a rear dismantling support rod (32), adjusting an adjustable support (312) of the rear dismantling support rod (32) to the bottom height of a preset additional keel (23), and enabling the distance between the left and right adjacent support rods (311) to be not more than 2 m;
fourthly, laying a template bracket (2), and laying a main keel (21), a secondary keel (22) and an additional keel (23) in sequence, wherein the additional keel (23) is arranged corresponding to the central line of the rear dismantling support rod (32);
laying an early-dismantling formwork (11) and a rear-dismantling formwork (12), arranging formwork units along the edges, arranging reserved plate strips at positions corresponding to the additional keels (23), then continuously laying the formwork units, circulating in sequence, and processing and cutting the formwork units when the residual size of the tail end is smaller than the size of the formwork units to enable the formwork units to be adaptive to the residual size;
sixthly, reinforcing the support component (3), and respectively arranging a cross rod between the early-dismantling support rod (31) and the support rod (311) of the later-dismantling support rod (32);
step seven, pouring concrete;
step eight, removing the formwork for the first time, when the strength of concrete reaches 50% and is not less than 20MPa, removing the cross bar of the early-removing support rod (31), adjusting the adjustable support (312), reducing the height of the adjustable support, and then removing the main keel (21), the secondary keel (22) and the early-removing formwork (11) in sequence;
and ninthly, removing the formwork for the second time, when the concrete strength meets the standard requirement, removing the cross rod of the supporting rod (32) after the disassembly, adjusting the adjustable support (312), reducing the height of the adjustable support, and then removing the additional keel (23) and the later-removed formwork (12) in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111598748.2A CN114396158A (en) | 2021-12-24 | 2021-12-24 | Rapid graded formwork dismantling system and construction method |
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| CN202111598748.2A CN114396158A (en) | 2021-12-24 | 2021-12-24 | Rapid graded formwork dismantling system and construction method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101324161B1 (en) * | 2013-03-29 | 2013-11-05 | (주)한미글로벌건축사사무소 | 2-day-cycle concrete structure construction method |
| CN109680930A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | Early-dismantling support system construction method |
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2021
- 2021-12-24 CN CN202111598748.2A patent/CN114396158A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101324161B1 (en) * | 2013-03-29 | 2013-11-05 | (주)한미글로벌건축사사무소 | 2-day-cycle concrete structure construction method |
| CN109680930A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | Early-dismantling support system construction method |
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Application publication date: 20220426 |