CN113309341A - Efficient low-consumption combined formwork system and construction method - Google Patents
Efficient low-consumption combined formwork system and construction method Download PDFInfo
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- CN113309341A CN113309341A CN202110755444.6A CN202110755444A CN113309341A CN 113309341 A CN113309341 A CN 113309341A CN 202110755444 A CN202110755444 A CN 202110755444A CN 113309341 A CN113309341 A CN 113309341A
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- 238000009415 formwork Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000002023 wood Substances 0.000 claims abstract description 9
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 13
- 238000013461 design Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 230000007306 turnover Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000011150 reinforced concrete Substances 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
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- 239000011120 plywood Substances 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/483—Supporting heads
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/486—Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads
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Abstract
The invention discloses a high-efficiency low-consumption combined formwork system and a construction method, wherein the formwork system comprises an early-dismantling formwork body and a formwork; the template comprises an early-dismantling template and a non-early-dismantling template, the template is a plastic template, the early-dismantling template is a whole plate 915mm multiplied by 1830mm, the width direction of the whole plate is a cross bar with the specification of 1142mm, and the cross bar in the other direction is not limited; a non-early-dismantling template is arranged between the whole early-dismantling template and the whole early-dismantling template, the width of the whole early-dismantling template is 1/4, and the width of the whole early-dismantling template is 227 mm; reserving a 300mm multiplied by 300mm material conveying port for one-layer transportation in the wood direction of the early-dismantled steel pipe in a non-early-dismantled area of the floor slab; a steel back ridge is arranged below the early-dismantling formwork, a steel pipe main ridge is arranged below the steel back ridge, and an early-dismantling head is arranged below the non-early-dismantling formwork. The invention adopts the self-developed early-dismantling head and the wedge-shaped connecting piece, can early dismantle the template (keep the supporting part of the template of the upright stanchion) when the concrete strength reaches 50 percent, and realizes the purpose of early dismantling in a simple way.
Description
Technical Field
The invention relates to a high-efficiency low-consumption combined formwork system and a construction method, and belongs to the technical field of construction of constructional engineering.
Background
The reinforced concrete cast-in-place member is a main part of the structure of the current building, and the formwork system is a support and a mould which are necessary for cast-in-place concrete forming, so the importance of the reinforced concrete cast-in-place member in the aspects of building construction safety, quality, cost and the like is self-evident. At present, a template support frame commonly used by a domestic formwork system is a fastener type steel pipe scaffold, and a used template is a wood plywood.
For example, patent publication No. CN102733599A discloses a fastener-type steel pipe scaffold formwork support suitable for a steel reinforced concrete beam. The support is erected by adopting phi 48 multiplied by 3.5 steel pipes, all nodes are connected by fasteners, the support is 34 longitudinal spans, 4 transverse spans and 10.3m high, the step pitch of the upright rods is 1.2m, the longitudinal distance between the upright rods is 0.6m, the transverse distance between the upright rods is 0.6m, the upper part of the support is provided with an adjustable bracket, 70mm multiplied by 150mm double aluminum beams are used as main beams for supporting the template on the adjustable bracket, the bottom of the adjustable bracket is inserted into the support for fixation, the adjustable bracket extends out of the upright rod steel pipe by 0.2m and can be adjusted within the range of 0.2 m; the upper part of the bracket is provided with a steel reinforced concrete beam template, the self weight of concrete is loaded on the template in the construction process, and the load transmitted to the upright stanchion by the template is half of the total self weight load of the concrete.
For another example, the invention patent with publication number CN101560829A discloses a fastener-type steel tube scaffold template bracket, which has a longitudinal 5-span bracket and a transverse 5-span bracket, and is loaded within a range of 5-span × 5-span bracket; no additional span exists outside the loading area; the stent aspect ratio was 4.07. The height of the frame is 8.15m, the step pitch of the upright rods is 0.62m, the longitudinal distance of the upright rods is 0.4m, the transverse distance of the upright rods is 0.4m, the upright rods are erected by steel pipes with the diameter of 48 multiplied by 3.5, and all nodes are connected by fasteners. The upper part of the bracket is supported by an adjustable bracket with phi 48 multiplied by 3.5 double steel pipes as a main beam for supporting the template, the bottom of the adjustable bracket is inserted into the upright of the bracket for fixation, the distance from the upper surface of the adjustable bracket to the upper surface of the uppermost horizontal rod of the bracket is 0.5m, the adjustable bracket extends out of the steel pipe of the upright by 0.3m and is adjusted within the range of 0.3 m.
However, the formwork system is still not ideal enough, the frame body erection speed of the fastener type steel pipe scaffold is slow, the turnover efficiency is low, in addition, the frame body erection has great randomness, great potential safety hazards exist when the frame body is improperly erected, and therefore major safety accidents caused by the collapse of the formwork support frames exist all over the country every year. The turnover frequency of the wood plywood is low, the wood plywood is generally scrapped after being turned over for 6-8 times, and a large amount of forest resources are consumed.
Disclosure of Invention
The invention mainly aims to provide a high-efficiency low-consumption combined formwork system and a construction method for solving the problems in the prior art. The cast-in-place member formwork support is suitable for cast-in-place member formwork support with the floor height between 2700 and 4200, is particularly suitable for standard floors with the same floor height, and is more economical for buildings with the floor number smaller than the turnover number of the formwork. In addition, the frame body can be applied to stage erection, bridge support and the like. The erection modes of high formwork support, overhanging outer frames, non-vertical support and the like are forbidden.
The invention is realized by the following steps:
firstly, the invention provides a high-efficiency low-consumption combined formwork system, which comprises an early-dismantling formwork body and a formwork; the template comprises an early-dismantling template and a non-early-dismantling template, the template is a plastic template, the early-dismantling template is a whole plate 915mm multiplied by 1830mm, the width direction of the whole plate is a cross bar with the specification of 1142mm, and the cross bar in the other direction is not limited; a non-early-dismantling template is arranged between the whole early-dismantling template and the whole early-dismantling template, the width of the whole early-dismantling template is 1/4, and the width of the whole early-dismantling template is 227 mm; reserving a 300mm multiplied by 300mm material conveying port for one-layer transportation in the wood direction of the early-dismantled steel pipe in a non-early-dismantled area of the floor slab; a steel back ridge is arranged below the early-dismantling formwork, a steel pipe main ridge is arranged below the steel back ridge, and an early-dismantling head is arranged below the non-early-dismantling formwork.
Wherein, early tear the head and include the steel layer board, have the fine setting lead screw in steel layer board below welded connection, be connected with on the fine setting lead screw and take the compass sleeve pipe, be equipped with the female head of connecting piece on taking the compass sleeve pipe, be equipped with the compass bottom taking the compass sleeve pipe.
Furthermore, an inner steel pipe penetrates into the lower portion of the sleeve with the compass, a lead screw is connected to the bottom of the inner steel pipe, a lead screw nut is connected to the lead screw, and a positioning pin is arranged on the inner steel pipe. The side surface of the sleeve with the compass is provided with a notch. The end of the steel pipe main ridge is provided with a male connector, and the male connector is matched with the female connector. The female head of the connecting piece is a section of round pipe with wedge-shaped grooves on four sides; the male head of the connecting piece is a structure with a section of round pipe end provided with a wedge-shaped tenon.
The construction method of the high-efficiency low-consumption combined formwork system comprises the following steps: template drawing design → quick-release frame erection → early-release head installation → slab bottom cross bar installation → plastic back edge laying → template installation → reinforcement → concrete pouring → removal of cross bar, back edge, early-release template → removal of vertical bar and non-early-release template. Wherein, the vertical height is also adjusted after the step of early head disassembly and installation; correcting the elevation of the top plate of the early-dismantling head after the step of laying the plastic back arris; after the concrete pouring step, an upper-layer structure quick-release frame body is also erected; and after the steps of dismantling the cross bar, the back edge and the early-dismantling template, transferring the cross bar, the back edge and the early-dismantling template to the upper layer.
Compared with the prior art, the invention has the following effects:
firstly, the invention adopts the self-developed early-dismantling head and the wedge-shaped connecting piece, can early dismantle the template (keep the part of the template supported by the upright stanchion) when the concrete strength reaches 50 percent, realizes the early-dismantling purpose in a simple way, and has advanced technology.
Secondly, this early tear frame structure open simple, convenient operation, only need a hammer through simple striking, can accomplish early tear the installation and the dismantlement of frame and early tear the head open, construction process masters easily, and it is swift to prop up to tear open, compares with traditional formwork mode (fastener formula scaffold), and work efficiency can improve about 2 times, for this reason, can accelerate the construction progress, shortens construction period.
In addition, the invention optimizes the process, labor force and material investment, can reduce labor intensity, improve working efficiency and save cost. Through early tearing open for the turnover of material, reduce the material input, this template early tears the system open and compare with traditional formwork mode, and template, back of the body are stupefied and horizontal pole material only need 1 layer, and the reducible 2/3 left and right sides of material input realizes the disposable input cost low of turnover material.
Moreover, this support body is the higher support body of factor of safety among the present building die carrier system: the free end is not arranged, and the problem of instability of the free end is solved; the top cross rod and the vertical rod are reliably restrained and cannot roll under the action of horizontal loads such as a pump pipe and the like (a steel pipe on the jacking support easily rolls under the action of the horizontal loads to cause deformation of a frame body and a template); compared with the common standard layer, the early-dismantling frame has the advantages that the frame body with free ends such as a top support (the top upright rod and the cross rod are not reliably restrained) is adopted, the early-dismantling frame is one more step, and the overall stability of the frame body is doubled.
Finally, the early-dismantling system template, the connecting piece and the early-dismantling head are standardized, the randomness during erection is reduced, the construction process is standardized, and the engineering quality and the safety are ensured. The plastic template and the back edge have high turnover frequency and can be recycled, and the usage amount of template frame materials is greatly reduced, so that wood resources are saved, green and material-saving effects are realized, and the construction target of environmental protection and sustainable development is met; meanwhile, the labor amount is reduced, the labor intensity of workers is reduced, the management of a construction site is facilitated, and green and energy-saving effects are realized.
Compared with the prior art, the steel pipe early-dismantling frame body takes the wedge-shaped connecting piece and the early-dismantling head device as cores, the template and the back edge of the steel pipe early-dismantling frame body are made of plastic materials, the turnover frequency can reach 30 times, the steel pipe early-dismantling frame body belongs to green building materials, can be recycled, and can save a large amount of wood resources. Through repeated improvement and optimization in practice, the system finally realizes quick assembly and disassembly: after the concrete is poured, the strength value of the concrete reaches 50 percent of the design value (or the concrete compressive strength is 10MPa) or more, the plate bottom template, the steel pipe, the plastic back edge and the cross rod of the frame body can be removed in advance, the material turnover is accelerated, the construction period is shortened, and the labor intensity is reduced.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a template layout of the present invention;
FIG. 3 is a schematic view of the early disconnect head installation of the present invention;
FIG. 4 is a schematic view of the early disconnect of the present invention;
FIG. 5 is a diagram of the early post-removal effect of the present invention;
FIG. 6 is a female end construction of the connector of the present invention;
FIG. 7 is a male end construction of a connector of the present invention;
fig. 8 is an early disconnect configuration of the present invention.
Description of reference numerals: 1-non-early-dismantling formwork, 2-material conveying port, 3-early-dismantling formwork, 4-steel back edge, 5-steel pipe main edge, 6-early-dismantling head, 7-concrete floor, 8-connector male head, 9-positioning pin, 10-sleeve with compass, 11-steel supporting plate, 12-connector female head, 13-fine-adjustment screw rod, 14-inner steel pipe, 15-screw rod nut, 16-screw rod and 17-notch.
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 to 8, the early-dismantling principle of the floor slab of the present invention: according to the specification GB50204, provision is made: the vertical support is used for supporting the plate with the transverse and longitudinal spans within 2m, and the form can be detached when the concrete strength reaches over 50 percent (the concrete compressive strength reaches 10 MPa). After the concrete strength of the early-dismantling system reaches 50 percent (the concrete compressive strength reaches 10MPa), the steel pipe main edge 5, the early-dismantling formwork 3 and the steel back edge 4 are dismantled in advance, the vertical rods are kept to support independently, and the early-dismantling of the formwork is realized, so that the member is safe and reliable in an early-dismantling state. Theoretical analysis and test verification show that after early dismantling, the floor slab is loaded to 16 KN/square meter and still safe.
Early dismantling and realizing steps: through simple knocking, the sleeve pipe 10 with the compass of the early-dismantling head 6 is rotated, so that the supporting system of the plate bottom template can be freely lifted, and when the sleeve pipe 10 with the compass of the early-dismantling head 6 in one plate area is completely descended, the supported steel backing arris 4 and the early-dismantling template 3 can be easily taken down, thereby realizing early dismantling.
The construction process flow of the invention is shown in figure 1. The specific implementation steps also comprise the following aspects:
1. designing a system:
early dismantling the frame body: cross bar: the cross bars are divided into four specifications of 300mm, 600mm, 900mm and 1142mm according to the span modulus specification of the vertical rods. Pole setting: determined by the height of the field layer (not more than 4000mm at the highest). Step length: the ground clearance of the sweeping rod is 350mm and the step pitch is 1500 mm.
2. Matched mold design (fig. 2):
the template adopts the plastics template, in order to realize early the tearing open of template, the template should be supporting with the interval of support body pole setting. The early-dismantling part of the template is usually 915mm multiplied by 1830mm of the whole plate, the transverse rods (the distance between the vertical rods) with the specification of 1142mm are required to be adopted in the width direction of the whole plate, and the transverse rods (the distance between the vertical rods) in the other direction are not limited. A non-early-dismantling template is arranged between the early-dismantling whole plate and the whole plate, the width of the early-dismantling whole plate is 1/4, and the width of the early-dismantling whole plate is 227 mm. The size of the non-early-dismantling formwork 1 at the edge part of the floor is determined according to the actual situation on site.
The material conveying port 2 is reserved: in order to facilitate the one-layer transportation in the wood direction of the early-dismantled steel pipe, a material conveying opening 2 with the size of 300mm multiplied by 300mm is reserved in a non-early-dismantled area of the floor slab.
The technical personnel designs the template matching drawing according to different bay and depth requirements of the drawing, defines the mode of erecting the frame body, defines the sizes of the early-dismantling template at the bottom of the plate and the non-early-dismantling area, and then calculates the required number of upright posts, cross rods, early-dismantling heads and templates with different specifications.
3. Quick detach support body is set up:
positioning and paying off: and (4) popping up a cross-shaped through line of the vertical rod in the middle area of the site by a measurer according to the position of the vertical rod in the template matching diagram. The cross point is a starting point for erecting the frame body in the area and can be erected from the cross point to the periphery in a diffused mode, the position of the vertical rod on the cross line is accurate, and otherwise the quality of erecting the frame body can be influenced.
When the frame body is erected, two persons cooperate to complete the assembly of a group of vertical rods and transverse rods to form a quadrilateral supporting lattice, then the rest supporting lattice is supported along the supported horizontal supporting lattice according to the mutually vertical or straight principle, and after all the vertical rods and the transverse rods are completed, a hammer is adopted to lightly knock down the end part of the steel pipe main ridge 5.
4. Early-dismantling and installing:
before the early dismantling head 6 is installed, the sleeve 10 with the compass is lifted and placed on the positioning pin 9. During installation, the screw rod part of the early-dismantling head 6 is inserted into the upright steel pipe, and the tray on the screw rod is placed in the groove at the top of the steel pipe.
Leveling: according to 500 marking lines on the vertical rod, the height of the early dismantling head 6 is adjusted by rotating a tray on the screw rod so as to adapt to the floor height and the plate thickness.
5. Installing a cross bar at the bottom of the plate:
the plate bottom steel pipe main edge 5 is the same as the cross bar of the frame body, after the early dismantling head 6 marks are aligned in height, the steel pipe main edge 5 is installed, and after the steel pipe main edge 5 is clamped, the hammer is adopted to slightly and downwards strike the end part of the steel pipe main edge 5.
6. Early-dismantling formwork installation:
after the main steel pipe edges 5 are installed, battens can be laid, formworks can be laid after the battens are laid, and the formworks are laid in one by one from one side to the other side according to a formwork distribution diagram, namely the early-dismantling formworks 3 and the non-early-dismantling formworks 1 are alternately carried out. The top plate elevation of the early-dismantling head 6 should be finely adjusted before the non-early-dismantling formwork 1 is laid, so that no gap can be left between the steel supporting plate 11 at the top of the early-dismantling head 6 and the non-early-dismantling formwork 1 (as shown in fig. 3).
7. And (3) reinforced concrete construction: after the formwork is laid, reinforcing steel bars can be laid behind the folding grids according to experience, the concrete is poured, people should be dispatched to guard the formwork in the concrete pouring process, and problems are found and timely treated.
8. Constructing the upper layer of formwork frame body:
when the concrete setting and hardening strength reaches 2MPa, the erection of the previous layer of frame body can be started (generally, the time is half a day), and the construction method is the same as the early-dismantling frame body erection method. The frame body cross rod can be used by detaching the sweeping rod and the middle layer cross rod of the lower layer, after the frame body is erected for one day, the top layer cross rod, the battens and the templates are provided after the lower layer templates are early detached, and the time is basically just connected.
9. Early dismantling of the template:
the early dismantling process is constructed from top to bottom in sequence: top cross bar → plastic back edge → plastic form → the rest cross bar.
According to the strength report of the concrete same-condition test block, when the concrete reaches 50% of the designed strength and is not less than 10MPa, the template can be early dismantled (the dismantling time of the frame body sweeping rod and the middle cross rod can be advanced). The early dismantling time has a great relationship with the air temperature, and generally takes about 36 hours at 20 ℃.
When the tool is early dismounted, the hammer is used for knocking the handle with the compass sleeve 10 to enable the notch 17 to be aligned with the positioning pin 9, the sleeve 10 with the compass slides downwards, and the connecting piece and the main ridge on the upper part of the sleeve also slide downwards together (as shown in figure 4). When all the sleeves 10 with compass of the early-dismantling heads 6 in the area descend, the steel pipes at the bottom of the plate, the plastic back ridges and the formworks can be dismantled, and only the upright posts and the formworks at the top in the non-early-dismantling area are left (as shown in fig. 5).
The steel pipe flitch after early tearing open transmits the one deck turnover through passing material mouth 2 and uses, and the template can't pass through passing material mouth 2 transmission, can set up the platform handling of unloading.
10. Removing the template: after the strength of the concrete reaches the standard form removal strength and the floor slab is enough to support the upper construction load, the vertical rods and the non-early-removal form 1 can be removed.
11. Materials and equipment:
pole setting: the steel pipe is No. 3 common steel pipe with outer diameter A48 and wall thickness t 3.0
Connecting piece: the connector female head 12 and the connector male head 5 are shown in fig. 6 and 7, respectively.
The early detachment head 6 is shown in fig. 8: the device comprises a component steel supporting plate 11, a fine adjustment screw rod 13, a connecting piece female head 12, an inner steel pipe 14, a sleeve with a compass 10, a positioning pin 9, a screw rod 16 and a screw rod nut 15.
Application example:
guiyang future ark project group F1 application example:
the future ark project F1 group is located in the cloud-rock area of Guiyang city, and the structural form is a shear wall structure with 29-32 layers above the ground. In 2013, in 6 months, the system is used for trial on the 14 th layer of the F1 group, the installation and the removal are convenient, the efficiency is high, and the labor force is saved; the combined formwork can remove the cross rods, the plastic back edges and the formworks in advance after the concrete reaches a certain strength, so that the material turnover is accelerated, and the purposes of saving materials and reducing construction cost are achieved.
Example of application of group of Guiyang future ark projects G4, G5:
the future ark projects G4 and G5 are grouped in cloud and rock areas of Guiyang city, and the structural form is shear wall structure and 29-33 layers above the ground. The high-efficiency low-consumption combined die frame system is used in the group, and the use result proves that the system not only reduces the construction cost, but also does not obtain greater economic benefit.
Example of an application of the Wanke-exquisite Bay project:
the Wanke and exquisite bay project developed and created by Guiyang Wanke gold region blue bay real estate Co., Ltd is built by the fifth building engineering Co., Ltd of the fourth office of China. The project consists of 18 townhouses and 7 high-rise residential buildings (wherein the 4# building is a commercial club), and the total building area is about 15 ten thousand meters 2. The high-rise residential buildings are 32 floors above the ground and are provided with 1-4 underground garages. The structure type is a frame shear wall structure, and the foundation is a manual hole digging pile foundation. The high-efficiency low-consumption combined formwork system is adopted in 3-10 floors of the project 5# high-rise residential building. The quality of the formed concrete is good, safety problems such as instability of the frame body and the like do not occur in the construction process, the construction period is greatly saved, and great economic benefits and social benefits are obtained.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A high-efficient low-consumption combined formwork system which characterized in that: comprises an early-dismantling frame body and a template; the template comprises an early-dismantling template (3) and a non-early-dismantling template (1), the template is a plastic template, the early-dismantling template (3) is a whole plate 915mm multiplied by 1830mm, the width direction of the whole plate is a cross bar with the specification of 1142mm, and the cross bar in the other direction is not limited; a non-early-dismantling template (1) is arranged between the whole early-dismantling template (3) and the whole early-dismantling template, the width of the whole early-dismantling template is 1/4, and the width of the whole early-dismantling template is 227 mm; reserving a 300mm multiplied by 300mm material conveying port (2) in a non-early-dismantling area of the floor slab for one-layer transportation in the wood direction of the early-dismantled steel pipe; a steel back ridge (4) is arranged below the early-dismantling template (3), a steel pipe main ridge (5) is arranged below the steel back ridge (4), and an early-dismantling head (6) is arranged below the non-early-dismantling template (1).
2. The high efficiency, low loss, modular frame system of claim 1, wherein: the early-dismantling head (6) comprises a steel supporting plate (11), a fine-adjustment screw rod (13) is welded below the steel supporting plate (11), a sleeve with a compass (10) is connected to the fine-adjustment screw rod (13), a female head (12) of a connecting piece is arranged on the sleeve with the compass (10), and a compass is arranged at the bottom of the sleeve with the compass (10).
3. The high efficiency, low loss, modular frame system of claim 2, wherein: an inner steel pipe (14) penetrates into the lower portion of the sleeve (10) with the compass, a lead screw (16) is connected to the bottom of the inner steel pipe (14), a lead screw nut (15) is connected to the lead screw (16), and a positioning pin (9) is arranged on the inner steel pipe (14).
4. The high efficiency, low loss, modular frame system of claim 2, wherein: the side surface of the sleeve (10) with the compass is provided with a notch (17).
5. The high efficiency, low loss, modular frame system of claim 2, wherein: the end of the steel pipe main ridge (5) is provided with a male connector (8), and the male connector (8) is matched with the female connector (12).
6. The high efficiency, low loss, modular frame system of claim 5, wherein: the female connector (12) is of a structure that wedge-shaped grooves are formed in four sides of a section of round pipe; the male head (8) of the connecting piece is of a structure with a wedge-shaped tenon at the end part of a section of round pipe.
7. A construction method of the high-efficiency low-consumption combined formwork system as claimed in any one of claims 1 to 6, characterized by comprising the following steps: template drawing design → quick-release frame erection → early-release head installation → slab bottom cross bar installation → plastic back edge laying → template installation → reinforcement → concrete pouring → removal of cross bar, back edge, early-release template → removal of vertical bar and non-early-release template.
8. The construction method of the high-efficiency low-consumption combined formwork system according to claim 7, characterized in that: after the step of early head disassembly and installation, vertical height adjustment is also carried out; correcting the elevation of the top plate of the early-dismantling head after the step of laying the plastic back arris; after the concrete pouring step, an upper-layer structure quick-release frame body is also erected; and after the steps of dismantling the cross bar, the back edge and the early-dismantling template, transferring the cross bar, the back edge and the early-dismantling template to the upper layer.
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