CN113958138A

CN113958138A - Green formwork system construction method

Info

Publication number: CN113958138A
Application number: CN202111385415.1A
Authority: CN
Inventors: 马海哲; 陈佩剑; 徐洪瑞; 乔海洋; 高伟阳; 刘楠楠
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-01-21

Abstract

The invention discloses a construction method of a green formwork system, which belongs to the technical field of building construction and comprises the following steps: the method comprises the steps of preparing before construction, erecting a formwork system, binding steel bars, pouring concrete and removing a formwork twice, wherein the erection size of the formwork system is standardized, the formwork is standardized, the erection efficiency and the stability of the formwork system are improved, the standard formwork is used for quickly transferring and less investment, only 1 layer of consumption is needed, the periphery can be quickly arranged to the upper layer, the transfer material is prevented from being idle, the use of the material is reduced, and the method is beneficial to green construction and environment protection; according to the formwork system, the top plate is additionally arranged at the top of the upright rod to early dismantle the column head, so that the formwork is convenient to dismantle in advance, and the use amount of the formwork and turnover materials is reduced. The invention is suitable for common multi-storey and high-rise cast-in-place concrete structure buildings, is particularly suitable for projects such as underground garages, factory buildings and the like with large single-storey area and few floor numbers, and can also be applied to post-cast strip formwork support.

Description

Green formwork system construction method

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a construction method of a green formwork system.

Background

In order to realize sustainable development of society, the fields of industry, building, traffic and the like continuously and deeply promote low-carbon transformation. At present, carbon emission in the building industry is mainly concentrated in the production, transportation and construction processes of building materials, the traditional wood formwork support system is low in standardization degree, a non-standard formwork cannot be recycled, and the phenomenon of serious wood waste exists. Therefore, it is necessary to develop a new form-erecting system which is more environmentally friendly and can be recycled to reduce the amount of wood used.

Disclosure of Invention

The invention aims to provide a construction method of a green formwork system, and aims to solve the technical problem that in the prior art, a formwork in a traditional wood formwork supporting system has no universality, so that wood waste is serious.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a construction method of a green formwork system comprises the following steps:

s1: preparation before construction: designing a scheme, processing a template, arranging a support frame body and a template position in advance, and measuring and paying off;

s2: erecting a formwork system; firstly, erecting a formwork support body, installing early-dismantling column heads and keels at the top of the formwork support body, laying and fixing formworks and plate strips above the keels at intervals, correspondingly laying the plate strips above upright rods of the formwork support body, and laying the formworks above the adjacent upright rods;

s3: binding steel bars: snapping lines on the template and the plate belt, and binding a reinforcing mesh;

s4: pouring concrete: pouring a wall column after pouring a staircase in advance, and finally pouring the interior of the template to form a floor slab;

s5: removing the mold for the first time: removing the keel, the template and the cross rod of the formwork support body;

s6: and (5) second-time mold stripping: and (4) dismantling the vertical rods of the formwork support body, the early dismantling column heads and the plate strips.

Preferably, the formwork system includes a formwork support body, early-dismantling column heads, keels, formworks and slab bands, the formwork support body is set up by horizontal pole and pole setting and forms, early-dismantling column head interval sets up in the pole setting top of formwork support body, the top of supporting the column heads is located to the keel frame, formwork and slab band interval are laid in the top of keel.

Preferably, the early-dismantling column cap comprises a support rod, a lifting wing plate and an adjusting nut, the support rod is a cylinder with external threads, and the lower end of the support rod can be in threaded connection with an inner hole at the top of the vertical rod; the top of the supporting rod is provided with a top plate for checking elevation, and the middle parts of the lifting wing plate and the adjusting nut are provided with internal threads matched with the supporting rod; the adjusting nut is arranged below the lifting wing plate.

Preferably, the number of the adjusting nuts is two, the upper adjusting nut is abutted with the lower end of the lifting wing plate, and the lower end of the lower adjusting nut is abutted with the upper end face of the vertical rod.

Preferably, a calibration block for calibrating the height is arranged on the excircle of the adjusting nut, the calibration block is triangular, and the tops of the calibration block are flush; and two calibration blocks are arranged on the excircle of each adjusting nut and are symmetrically arranged on two sides of the adjusting nut.

Preferably, the lifting wing plate comprises a sleeve, a bearing plate and a rib plate, the sleeve can be in threaded fit with the vertical rod, the bearing plate is arranged at the top of the sleeve, the bearing plate is rectangular, convex eaves for limiting the main keel are symmetrically arranged on two sides of the bearing plate, the rib plate is symmetrically arranged on two sides of the sleeve, one side of the rib plate is fixed with the outer circle of the sleeve, and the top of the rib plate is fixed with the lower surface of the bearing plate.

Preferably, the keels comprise main keels and secondary keels, the main keels are arranged on the lifting wing plates in parallel, the main keels are steel pipes, and the main keels are arranged on bearing plates of the lifting wing plates in pairs; the secondary joist is laid above the main joist, and the secondary joist is laid perpendicular to the main joist.

Preferably, the secondary joist is a long-strip square timber, and the cross section of the square timber is 40 × 90 mm; the diameter of the steel pipe is 48.3 mm; the template and the plate belt are both double-sided coated wood plywood, and the size of the template is 1830-915-15 mm.

Preferably, in step S1, the position of the cross bar of the formwork support body is set on the floor slab in advance in a springing manner, the position where the cross bar crosses is the position of the vertical rod, and the vertical rod position is marked by painting.

Preferably, in step S4, the concrete pouring measures the concrete slump according to the design requirement and leaves the specimen for the same maintenance and standard maintenance; in step S5, when the strength of the poured concrete reaches 50% or 75% of the design strength, the first form removal is performed.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the erecting efficiency and the stability of the formwork supporting system are improved by erecting the standardized size and the standardized formwork, the standard formwork is fast in turnover and low in investment, only 1 layer of using amount is needed to be prepared, the periphery can be fast arranged on the upper layer, the turnover material is prevented from being idle, the use of the material is reduced, and the environment is favorably protected and constructed in an environment-friendly way; according to the formwork system, the top plate is additionally arranged at the top of the upright rod to early dismantle the column head, so that the formwork is convenient to dismantle in advance, and the use amount of the formwork and turnover materials is reduced. The invention is suitable for common multi-storey and high-rise cast-in-place concrete structure buildings, is particularly suitable for projects such as underground garages, factory buildings and the like with large single-storey area and few floor numbers, and can also be applied to post-cast strip formwork support.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a green form-supporting system in an embodiment of the present invention;

FIG. 2 is a floor plan of a template and strip in an embodiment of the invention;

FIG. 3 is a schematic structural view of the early-dismantled stud of FIG. 1;

in the figure: 00-wall body, 01-floor slab; 1-a formwork support body, 11-upright rods and 12-cross rods; 2-early dismantling a column head, 21-a support rod, 22-a lifting wing plate, 221-a sleeve, 222-a bearing plate and 223-a rib plate; 23-adjusting nut, 24-top plate, 25-calibration block; 3-template, 4-plate band, 5-main keel and 6-secondary keel.

Detailed Description

The technical solutions in the embodiments of the present invention are 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.

The invention provides a construction method of a green formwork system, which comprises the following steps:

s1: preparation before construction: designing a scheme, processing a template, arranging a formwork support body and a template position in advance, and measuring and setting out. The position of a cross rod 12 of a formwork support body 1 is arranged on a floor slab in an elastic mode in advance, the position where the cross rod 12 intersects is the position of a vertical rod 11, and vertical rod point positions are marked by paint spraying.

S2: erecting a formwork system: as shown in fig. 1, firstly, a formwork support body 1 is erected, an early-dismantling column head 2 and a keel are installed at the top of the formwork support body 1, a formwork 3 and a slab band 4 are laid and fixed above the keel at intervals, the slab band 4 is correspondingly laid above upright rods 11 of the formwork support body 1, and the formwork 3 is laid above between adjacent upright rods 11, as shown in fig. 2.

As shown in fig. 1, the formwork system includes a formwork support body 1, early-dismantling column heads 2, keels, formworks 3 and slab bands 4, the formwork support body 1 is erected by a cross rod 12 and a vertical rod 11, the early-dismantling column heads 2 are arranged at the tops of the vertical rods 11 of the formwork support body 1 at intervals, the keels are erected at the tops of the supporting column heads 2, and the formworks 3 and the slab bands 4 are laid above the keels at intervals.

S3: binding steel bars: snapping lines on the template 3 and the plate belt 4, and binding a reinforcing mesh; the joints of the templates are glued by sponge strips with the width of 30 multiplied by 15.

S4: pouring concrete: pouring a wall column after pouring a staircase in advance, and finally pouring the interior of the template to form a floor slab; and (5) concrete pouring is carried out, the concrete slump is measured according to the design requirement, and the synchronous curing and standard curing test block is kept.

S5: removing the mold for the first time: and removing the keel, the template 3 and the cross rod 12 of the formwork support body 1. And when the strength reaches 50% or 75% of the designed strength after the concrete pouring is finished, performing primary form removal.

S6: and (5) second-time mold stripping: and (3) dismantling the upright rods 11 of the formwork support body 1, the early dismantling column heads 2 and the plate strips 4.

Then the removed material is circulated to the upper layer, so that the aim of recycling is fulfilled.

The invention is suitable for common multi-storey and high-rise cast-in-place concrete structure buildings, is particularly suitable for projects such as underground garages, factory buildings and the like with large single-storey area and few floor numbers, and can also be used for post-cast strip formwork support.

In one embodiment of the present invention, as shown in fig. 3, the early-dismantling column cap 2 comprises a support rod 21, a lifting wing plate 22 and an adjusting nut 23, wherein the support rod 21 is a cylinder with an external thread, and the lower end of the support rod 21 can be in threaded connection with an inner hole at the top of the upright rod 11; a top plate 24 for checking elevation is arranged at the top of the support rod 21, and internal threads matched with the support rod 21 are arranged in the middle of the lifting wing plate 22 and the middle of the adjusting nut 23; the adjusting nut 23 is disposed below the elevation wing plate 22. The number of the adjusting nuts 23 is two, the upper adjusting nut 23 is abutted with the lower end of the lifting wing plate 22, and the lower end of the lower adjusting nut 23 is abutted with the upper end face of the vertical rod 11. The lifting wing plate can be positioned by utilizing two adjusting nuts.

In order to conveniently carry out recheck calibration on the elevation in the construction process, a calibration block 25 for calibrating the height is arranged on the excircle of the adjusting nut 23, the calibration block 25 is triangular, and the top of the calibration block 25 is flush; two calibration blocks 25 are arranged on the outer circle of each adjusting nut 23, and the two calibration blocks 25 are symmetrically arranged on two sides of the adjusting nut 23.

Further optimizing the technical scheme, as shown in fig. 3, the lifting wing plate 22 includes a sleeve 221, a supporting plate 222 and rib plates 223, the sleeve 221 can be in threaded fit with the vertical rod 11, the supporting plate 222 is disposed at the top of the sleeve 221, the supporting plate 222 is rectangular, convex eaves 224 for limiting the main keel 5 are symmetrically disposed on two sides of the supporting plate 222, the rib plates 223 are symmetrically disposed on two sides of the sleeve 221, one side of the rib plate 223 is fixed to the outer circle of the sleeve 221, and the top of the rib plate 223 is fixed to the lower surface of the supporting plate 222. The keel comprises a main keel 5 and a secondary keel 6, the main keel 5 is arranged on the lifting wing plate 22 in parallel, the main keel 5 is a steel pipe, and every two main keels 5 are arranged on the bearing plate 222 of the lifting wing plate 22 in pairs; the secondary joist 6 is laid above the main joist 5, and the secondary joist 6 is laid perpendicular to the main joist 5.

During specific manufacturing, the secondary keel 6 is a long-strip square wood, and the cross section of the square wood is 40 x 90 mm; the diameter of the steel pipe is 48.3 mm; the template 3 and the plate belt 4 are both double-sided coated wood plywood, and the size of the template 3 is 1830-915-15 mm.

The following is the construction content of the green formwork system in a specific embodiment:

the method comprises the following steps of firstly, deeply designing the arrangement of a template and a formwork support body:

1. before construction, technicians carry out deepened designs such as template matching, frame body arrangement and the like on each room in the standard layer according to drawings.

2. Numbering each house type and room of the floor, adopting a standard template as much as possible when matching the template, reducing the specification of the template, uniformly numbering the templates with uniform specification, and finally providing a template matching plane layout drawing and a material list.

3. According to the template arrangement, the frame body arrangement is deepened, a frame body arrangement plane arrangement drawing and a construction (formwork) big sample drawing of each room are drawn, and finally a total material usage list is issued.

4. The A-family living room is taken as an illustration, and the frame body arrangement and the template arrangement are shown in figures 1 and 2.

Secondly, template processing:

1. before the templates are processed in a centralized mode, a team is required to be subjected to detailed bottom matching and issuing of centralized processing template blanking lists, and the team is required to be manufactured according to template deepening detailed drawings and construction requirements strictly.

2. The template processing adopts centralized processing, and the size of a processing workshop is determined according to the size of an item, and is generally 8m by 6m by 5 m.

3. The template cutting adopts the processing of accurate electric saw, and the handheld electric saw cutting of forbidden scene, the template is packed according to the serial number after the processing is accomplished, concentrates the handling.

Thirdly, measuring and paying off:

1. the vertical and horizontal main control axes are released by the wire guard, and the constructor controls the lines by matching with the axes, sidelines and 200 of the wall columns of the labor team.

2. And (3) elastically arranging a position line of a horizontal cross rod of the frame body on the floor slab according to the side line of the wall column and the arrangement deepening drawing of the frame body, wherein the cross position of the horizontal cross rod of the frame body is the position of the vertical rod, and a point phi 50mm of self-spraying paint is used as a station rod point. The paint spraying is kept clear and consistent, and other positions or steel bars of the floor slab are prevented from being polluted strictly.

3. After the paying-off is finished, a constructor reports a quality inspector and a technician to recheck the position of the pay-off and the frame body.

Fourthly, laying a template:

1. and installing the early-dismantling column heads according to a deepened design drawing of a formwork system, and integrating top plates and lifting wing plates of all the early-dismantling column heads to a designed elevation and fastening adjusting nuts to fix firmly before arranging the main keels.

2. The main keel with the diameter of 48.3mm by 3.0mm is placed in the lifting wing plate, the height of the main keel is adjusted through the lifting wing plate according to the elevation check of the top plate, the two ends of the steel pipe exceed the first row of upright posts from the wall by more than 250mm, and the length of the double steel pipe can be normally short span net length of-200 mm.

3. After the main keel is installed and adjusted in place, 40 mm-60 mm wood placing is arranged from one end of the slave plate to the other end of the slave plate, and the joints of the templates in the keel direction are all subjected to 40mmx60mm square wood pressing joint treatment to prevent slurry leakage. The length of the square timber is selected to be fixed length as far as possible according to the span of the floor slab, if the square timber needs to be lapped, the joints are arranged at the main keels and exceed the main keels of the steel pipes by more than 200 mm.

4. After the secondary joist is laid, the template which is cut and marked with the number is hoisted to the working face, under the condition that the section size of the two side beams (or walls) is ensured, the center of the supporting top plate is positioned according to the number of the template, the top template is laid to two sides at one time, and four corners and abutted seams are all firmly nailed with bottom square wood after one template is laid. And rechecking the layout elevation after the template is laid.

Note that: after the template is laid, a constructor at the project part sets the vertical plate top and 50 elevation lines on the vertical steel bars of the wall column, and marks the vertical plate top and the 50 elevation lines with red paint, wherein the distribution range of the elevation points is less than or equal to 3 m.

Meanwhile, in the process of laying the templates, the treatment of template splicing is emphasized, a 40 mm-90 mm square wood is placed under the template standard plate and the non-standard plate, and is fixed by iron nails, so that the template splicing is ensured to be smooth and tight, and concrete leakage is prevented. The joints of the templates are glued by sponge strips with the width of 30 multiplied by 15, so that slurry leakage is prevented.

Fifthly, binding steel bars:

1. after the template is laid, sundries on the template are cleaned, and main ribs and spacing lines of distributed ribs are formed on the template through ink lines. In the binding process, the placing quantity and the spacing of the cushion blocks of the protective layer are required to meet the corresponding standard requirements. And after binding is finished, a trampling prevention measure is set to pay attention to the protection of the finished product.

Sixthly, pouring concrete:

1. the concrete is poured by adopting premixed concrete and adopting a ground pump matched with a spreader, the concrete is poured sequentially from far to near, a staircase is poured firstly, then a wall column is poured, and finally a top plate is poured, and the concrete with different grades needs blocking measures.

2. And (5) concrete pouring is carried out, the concrete slump is measured according to the requirements, and the test blocks for simultaneous curing and standard curing are kept.

Seventhly, first-time mold stripping:

1. according to the design requirement of the formwork system, the strength reaches 50 percent (less than 2 meters) of the design strength after concrete pouring is finished; the top form can be removed after 75% (> 2, ≦ 8), typically after 48 hours. Before the first template is removed, a template removal application needs to be initiated, whether the strength of the roof concrete grade of the same-maintenance test block reaches more than 50% or not is judged, the roof concrete grade reaches the strength grade and can be removed after being approved by technical responsible persons, and the roof concrete grade cannot be removed privately or not without being approved.

2. After the concrete reaches the specified strength, the adjusting nut of the early-dismantling column cap is adjusted to enable the lifting wing plate to slowly descend, the main keel descends, the secondary keel and the template supported on the main keel also descend, the template is separated from the concrete, and the first dismantling of the template is carried out. When the top formwork is dismantled, the supporting rods are kept original shapes and cannot be loosened. The first dismantling of the template ensures that the construction load is not greater than the designed bearing capacity of the reserved support; when the construction is dismantled, a special construction scheme is strictly executed. After the form is removed, the form is required to be cleaned, oiled and maintained comprehensively for later use, the form is required to be stacked reliably, and the turnover frequency of the form is prevented from being influenced by deformation.

Note that: after the template is cleaned up, the finished product of the water-based release agent is brushed by a rotary mop, and after brushing, the template is wiped by a dry rag so as to prevent the surface of the template from being brushed with too much release agent.

Eighth, second stripping:

1. and the second template removal is required to meet the concrete strength requirement of concrete engineering construction quality acceptance standard GB50204-2015 on bottom die removal, and the removal time of the supporting rod is determined according to the retained template removal test block.

2. When the upright post of the early-dismantling column head and the supporting rod is dismantled, one hand is used for grasping the supporting rod, and the other hand is used for hammering the bottom fulcrum by a hammer, so that the supporting rod and the early-dismantling column head can be dismantled.

In summary, the invention has the following advantages:

1. the formwork system formed by adopting standardized operation and standardized templates thoroughly solves the difficult problem of high-efficiency turnover construction of the wood formwork, so that the project can be smoothly carried out, the project progress is accelerated, turnover materials and manual work are reduced, meanwhile, the project quality and safety are more reliably guaranteed, and better social benefits are obtained. Compared with the traditional formwork supporting mode, the formwork supporting method has the advantages that the material turnover is fast, the investment is less, compared with the conventional investment, the investment of the formwork and the main and secondary keels is reduced by 1/3-2/3, meanwhile, the material in-out transportation cost and the lease cost are reduced, and the project cost is favorably reduced.

2. Through deepening arranging the formwork support body in advance, the problem of supporting of a rear dismantling plate belt and a standard plate module is solved, the size and the template standardization are erected for each part, the phenomenon that the node is unstable due to random erection of an operator is avoided, and the formed formwork system is safe and reliable and stable in stress. The supporting vertical rods are all arranged under the rear disassembling plate belt, rapid mounting and dismounting and rapid assembling can be achieved, and labor investment in template assembling is greatly reduced.

3. Through standardized design, the high-efficient turnover of template, the template can adopt to concentrate the unloading, concentrate the mode of processing, can realize fast ann's dismantlement and assemble the convenience in the work progress, can raise the efficiency, save the time limit for a project. Only 1 layer of quantity needs to be prepared in the construction, can be peripheral to the upper strata fast after demolishing, avoid having enough to meet the need the material idle, reduced the consumption of material, be favorable to green construction, environmental protection. The invention embodies the concept of engineering construction standardization, greatly improves the turnover utilization rate of the template and reduces the energy and environmental damage.

4. The construction method has good effects on construction standardization, quality management and safe and civilized construction, thereby establishing good enterprise images for owners and self units and providing the most direct experience reference for the wide popularization of the technology in the building industry.

In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and thus the present invention is not limited to the specific embodiments disclosed above.

Claims

1. a green formwork system construction method, is characterized in that, comprises the following steps:

S1: Pre-construction preparation: design scheme, process template, pre-arrange formwork body and template position, measure and lay out;

S2: Set up the formwork system; first, set up the formwork frame body, install the early dismantling column head and keel on the top of the formwork frame body, lay and fix the formwork and strips at intervals above the keel, and the strips are laid correspondingly on the top of the formwork frame body. Above the poles, the formwork is laid above the adjacent poles;

S3: Binding steel bars: elastic wires on the formwork and strips to bind the steel mesh;

S4: Concrete pouring: pour the stairwell in advance, pour the wall column, and finally pour the formwork to form the floor;

S5: The first demoulding: remove the keel, the formwork and the crossbar of the formwork frame;

S6: The second demoulding: remove the vertical rod of the formwork frame, the column head and the strips of the early demoulding.

2. The green formwork support system construction method according to claim 1, wherein the formwork support system comprises a formwork support body, an early dismantling column head, a keel, a template and a plate band, and the formwork support body is composed of a horizontal The poles and the vertical poles are erected, the early dismantling studs are arranged at intervals on the top of the vertical poles of the formwork support body, the dragon skeleton is arranged on the top of the supporting studs, and the formwork and the strip are laid on the top of the keels at intervals.

3. The green formwork support system construction method according to claim 2, characterized in that: the early dismantling column head comprises a support rod, a lifting wing plate and an adjusting nut, and the support rod is a cylinder with an external thread, so the The lower end of the support rod can be threadedly connected with the top inner hole of the vertical rod; the top of the support rod is provided with a top plate for checking the elevation, and the middle part of the lift wing plate and the adjusting nut is provided with a support rod for matching. Internal thread; the adjusting nut is arranged below the lift wing plate.

4. The green formwork system construction method according to claim 3, characterized in that: there are two adjustment nuts, the upper adjustment nut is in contact with the lower end of the lifting wing plate, and the lower end of the lower adjustment nut is in contact with the upper end of the vertical rod. end face contact.

5. The construction method of the green formwork system according to claim 4, wherein the outer circle of the adjusting nut is provided with a calibration block for calibrating the height, the calibration block is triangular, and the top of the calibration block is flat. The outer circle of each adjusting nut is provided with two calibration blocks, and the two calibration blocks are symmetrically arranged on both sides of the adjusting nut.

6 . The construction method of the green formwork support system according to claim 3 , wherein the lifting wing plate comprises a sleeve, a support plate and a rib plate, the sleeve can be threadedly matched with the vertical rod, and the support plate is threaded. 7 . The support plate is arranged on the top of the sleeve, the support plate is rectangular, and the two sides of the support plate are symmetrically provided with eaves for limiting the position of the main keel, and the rib plates are symmetrically arranged on both sides of the sleeve One side of the rib plate is fixed with the outer circle of the sleeve, and the top is fixed with the lower surface of the support plate.

7. The green formwork system construction method according to claim 6, characterized in that: the keel comprises a main keel and a secondary keel, the main keel is arranged on the lift wing plate in parallel, and the main keel is a steel pipe, and The main keels are arranged in pairs on the support plate of the lift wing plate; the secondary keels are laid above the main keels, and the secondary keels are laid perpendicular to the main keels.

8. The green formwork system construction method according to claim 7, wherein the secondary keel is a long square wood, and the cross-sectional size of the square wood is 40*90mm; the diameter of the steel pipe is 48.3mm ; The template and the strip are all wood plywood with double-sided film, and the size of the template is 1830*915*15mm.

9. The construction method of the green formwork support system according to claim 1, characterized in that: in the step S1, the position of the crossbars of the formwork support body is pre-bounced on the floor, and the position where the crossbars intersect is the vertical rod position, and spray paint to mark the position of the pole.

10. The construction method of green formwork support system according to claim 1, is characterized in that: in step S4, concrete pouring measures concrete slump according to design requirements and retains test blocks for co-cultivation and standard curing; in step S5, when After the concrete is poured and the strength reaches 50% or 75% of the design strength, the first demoulding is carried out.