CN112523258B - Portable single-side formwork supporting system and construction method thereof - Google Patents
Portable single-side formwork supporting system and construction method thereof Download PDFInfo
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
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Abstract
The invention discloses a portable single-side formwork supporting system and a construction method thereof, wherein the supporting system comprises a vertical formwork, a supporting system connected to one side of the formwork, a back ridge connected between the formwork and the supporting system in the vertical direction, a pin piece and a blocking piece connected between the back ridge and the supporting system, a bottom connecting piece connected to the supporting system in the vertical direction and positioned at the bottom of the supporting system, and a short column connected to one side of the supporting system far away from the formwork; the height of the template can be adapted through the increase and decrease of the standard units; adjusting the levelness and the verticality of the system by a hydraulic jack at the lower part of the bottom unit; through the arrangement of the upper supports and the connecting pieces of each unit, the on-site assembly is facilitated, and the units can be conveniently inserted and recycled during installation; the bottom connecting support is designed to be square, and can be used for jointly mounting a hydraulic jack and butting other rod pieces, so that the integrated prefabrication is facilitated.
Description
Technical Field
The invention belongs to the field of formwork construction, and particularly relates to a portable single-side formwork supporting system and a construction method thereof.
Background
When an ultra-deep basement is constructed in a dense building area in the city center, the problem that the space between the outer wall of the basement of the building and a supporting system is not enough often occurs, so that the outer wall of the basement can not be supported by a traditional mode, and the difficulty of waterproof construction of the basement is increased. And the basement outer wall is constructed by adopting the traditional method and needs to be poured for multiple times in a layered mode, the leakage condition of the basement outer wall can be caused in the using process of the basement outer wall due to the construction joints generated in the process, and the construction quality of the whole wall body is difficult to guarantee.
When adopting traditional formwork mode construction, the basement outer wall and strut the space between the system not enough, the basement outer wall will be unable to use traditional mode formwork, basement waterproofing is big to many construction joints that many times pouring wall body produced can lead to producing the problem of many places seepage in the use. How to solve the problem of formwork erection of the outer wall of the basement in a narrow space is always a key point and a difficult point in the main structure of the basement. Moreover, the existing supports supported through one side are mostly manufactured in an integral manner, so that the supports are not convenient to adjust according to the height of the template; the levelness of the bottom is greatly influenced by the horizontal ground, and the installation and construction are not convenient.
Disclosure of Invention
The invention provides a portable single-side formwork support system and a construction method thereof, which are used for solving the technical problems of convenient unit installation, adjustable levelness and height, cyclic utilization and the like of single-side formwork support.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable single-side formwork supporting system comprises a vertical formwork, a supporting system connected to one side of the formwork, a back ridge connected between the formwork and the supporting system in the vertical direction, a pin piece and a blocking piece connected between the back ridge and the supporting system, a bottom connecting piece connected to the supporting system in the vertical direction and positioned at the bottom of the supporting system, and a short column connected to one side of the supporting system far away from the formwork;
the supporting system comprises a bottom unit, a standard unit detachably connected to the upper part of the bottom unit, a top unit connected to the upper part of the standard unit and a cantilever unit connected to the upper part of the top unit; the standard units are assembled and prefabricated in groups according to the heights of the templates;
the bottom unit comprises a bottom cross beam, a bottom side column, a bottom inclined support, a bottom inclined connection support, a bottom connection piece, a bottom outer connecting rod and a bottom hanging piece, wherein the bottom cross beam is arranged in parallel with the bottom cross beam and is positioned below the bottom cross beam;
the standard unit comprises a standard upper beam, a standard lower beam, a standard side post, a standard inclined strut, a standard inclined connecting strut, a standard lower connecting support, a standard upper connecting piece, a standard outer connecting rod and a standard lifting piece, wherein the standard lower beam is arranged in parallel with the standard upper beam and is positioned below the standard upper beam;
the top unit comprises a top beam, a top lower beam, a top side column, a top inclined support, a top inclined connection support, a top lower connecting rod and a top outer connecting rod, wherein the top lower beam is parallel to the top beam and is positioned below the top beam, the top side column is connected to one side of the adjacent template, the top inclined connection support is connected between the top upper beam and the top lower beam, the top inclined connection support is connected between the top side column and the top lower beam, the top lower connecting support is detachably connected to the end part of the top lower beam outside the template, the top outer connecting rod is connected between the top lower connecting support and the top side column, and the top hanging piece is connected to the outer connecting rod at intervals.
Furthermore, the bottom connecting support comprises a square bottom connecting support body, a hydraulic jack penetrating one side of the bottom connecting support body, a group of bottom connecting support connecting rods detachably connected to the other side of the bottom connecting support body, and bottom connecting support adapters connected to the outer end parts of the bottom connecting support connecting rods; the bottom connecting seat connecting rods are arranged one by one corresponding to the bottom lower cross beam, the bottom inclined strut and the bottom outer connecting rod.
Further, the bottom connecting piece comprises a bottom connecting rod, a bottom connecting support plate connected to the top of the bottom connecting rod, and a bottom connecting rotating piece connected to the bottom connecting rod; the bottom connecting rods are arranged corresponding to the bottom cross beam, the bottom inclined struts and the bottom outer connecting rods one by one, and the top parts of the bottom connecting rods arranged corresponding to the bottom outer connecting rods are connected with bottom connecting supporting plates.
Furthermore, the standard lower connecting support comprises a standard lower connecting support body, a standard lower connecting support connecting rod detachably connected to the standard lower connecting support body and a standard lower connecting support adapter connected to the outer end part of the standard lower connecting support connecting rod; the lower standard connecting support body is a right triangle, wherein one right-angle side is connected with the upper standard connecting piece of the upper standard supporting plate or the lower standard unit correspondingly, and the other right-angle side is connected with the lower standard connecting support connecting rod correspondingly and detachably; the lower-label connecting support connecting rods are arranged one by one corresponding to the lower-label beam and the outer-label connecting rods;
the top lower connecting support comprises a top lower connecting support body, a top lower connecting support connecting rod detachably connected to the top lower connecting support body and a top lower connecting support adapter connected to the outer end part of the top lower connecting support connecting rod; the top lower connecting support body is a right triangle, wherein one right-angle side is correspondingly connected with the upper connecting piece, and the other right-angle side is correspondingly detachably connected with the connecting rod of the top lower connecting support body; the top lower connecting seat connecting rods are arranged one by one corresponding to the top lower cross beam and the top outer connecting rods.
Furthermore, the mark connecting piece comprises a mark connecting rod, a mark connecting supporting plate connected to the top of the mark connecting piece, and a mark connecting conversion piece connected to the outer end part of the mark connecting rod; the marking connecting rods are arranged one by one corresponding to the marking cross beams and the marking outer connecting rods; the upper marked supporting plate is connected with the lower marked supporting plate or the lower top supporting seat at the corresponding upper part.
Further, the outrigger unit contains the outrigger platform board, connects in the outrigger platform board and closes on the outrigger upstand of template one side below, connects in outrigger platform board top and keep away from the outrigger side of template one side and keep off, connect in the outrigger bracing between outrigger side fender and outrigger upstand and the interior montant of outrigger between outrigger platform board and outrigger bracing.
Furthermore, the short columns are detachably connected to the bottom outer connecting rod, the mark outer connecting rod and the top outer connecting rod in the length direction at intervals, and the horizontal short columns are arranged in rows.
Furthermore, the pin piece comprises a hook head and a straight rod, wherein the hook head is clamped below the back edge, and the straight rod is fixed on the support system through a nut; the supporting system above the pin piece is provided with a stopper, and the distance of the height difference between the pin piece and the stopper is adapted to the height of the back ridge.
Furthermore, the bottom connecting piece comprises a buried rib buried underground in advance, a pressing beam connected to the outer side of the bottom inclined connecting support and a fixing piece between the buried rib and the pressing beam.
Further, the construction method of the portable unilateral formwork support system comprises the following specific steps:
step one, determining the height of a supporting system according to the height of a template to be supported so as to determine the number of standard units in the supporting system; respectively and independently manufacturing a bottom unit, a standard unit, a top unit and a cantilever frame unit; performing pre-assembly tests on the bottom connecting support, the bottom connecting piece, the lower marking connecting support, the upper marking connecting piece and the lower top connecting support, and performing height lifting tests on a hydraulic jack in the bottom connecting support;
step two, installing buried ribs in the corresponding underground of the template, wherein the buried ribs are pre-buried according to an angle of 45 degrees, and the distance between the position of the buried ribs out of the ground and the wall surface is 300 mm; the distance between every two buried ribs is 250mm, and the buried ribs are wrapped by plastic cloth and are firmly fastened;
thirdly, determining the distance between the supporting systems, wherein the distance between the supporting systems at common positions is 800mm, and the maximum arrangement distance of the parts meeting the concrete columns is 1000 mm; when the template is closed, aligning the lower opening of the template with the pre-bounced side line, then installing a back edge, and temporarily supporting the template by using a steel pipe;
hoisting the bottom unit through a bottom hoisting piece, connecting the side surface of the bottom unit with the back ridge through a pin piece and a baffle plate, connecting the bottom through a bottom connecting piece, and connecting the pressing beam to the outer side of the bottom inclined connecting support; adjusting the integral levelness and verticality of the bottom unit by a hydraulic jack until the requirements are met, and finally fixing the side surface and the bottom of the bottom unit;
fifthly, hoisting the standard unit, the top unit and the cantilever unit, wherein a lower standard connecting support at the bottom of the standard unit is connected with a connecting piece at the bottom in an aligning way, and an upper standard connecting piece is connected with the lower standard connecting support in an aligning way; or when a plurality of standard units are contained, the mark upper connecting piece is aligned and connected with the mark lower connecting support at the upper part; in addition, the bottom side column, the standard side column and the top side column are correspondingly connected and fixed with the back edge; then, carrying out primary levelness and verticality calibration along with the installation of one unit; and finally, connecting a support rod on the short column to complete the integral construction of the single-side template system.
The invention has the beneficial effects that:
1) the invention is convenient for assembling a supporting system through the unitized design of the bottom unit, the standard unit and the top unit; the height of the template can be adapted by increasing or decreasing the standard units;
2) the levelness and the verticality of the whole system are adjusted through the hydraulic jack at the lower part of the bottom unit, so that the field adaptability adjustment is facilitated;
3) the invention is beneficial to on-site assembly through the arrangement of the upper supports and the connecting pieces of each unit, and convenient insertion and cyclic utilization during installation are realized; the lower connecting support is designed to be square, and a hydraulic jack can be installed in a combined mode and butted with other rod pieces, so that integrated prefabrication is facilitated;
in addition, the supporting system can be further fixed through the arrangement of the pin piece, the bottom connecting piece and the baffle, so that the integral application of the supporting system is facilitated; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
FIG. 1 is a side view of a portable single-sided formwork support system;
FIG. 2 is an elevation view of a portable single-sided formwork support system;
FIG. 3 is a side view of the support system;
FIG. 4 is a schematic view of the bottom unit being connected to a template;
FIG. 5 is a partial schematic view of the attachment of the support system to the template;
FIG. 6 is a schematic diagram of a bottom cell structure;
FIG. 7 is a schematic view of the structure of the bottom connection support;
FIG. 8 is a schematic view of a bottom attachment;
FIG. 9 is a schematic diagram of a standard cell structure;
FIG. 10 is a schematic view of the connection of the bottom connection seat structure;
FIG. 11 is a schematic view of a connection of the attachment structures;
FIG. 12 is a schematic view of a top unit structure;
FIG. 13 is a schematic view of the top and bottom connection support structure;
fig. 14 is a schematic view of the structure of the cantilever.
Reference numerals: 1-template, 2-support system, 21-bottom unit, 211-bottom beam, 212-bottom beam, 213-bottom side column, 214-bottom diagonal support, 215-bottom diagonal support, 216-bottom connecting support, 2161-bottom connecting support body, 2162-hydraulic jack, 2163-bottom connecting support rod, 2164-bottom connecting support adapter, 217-bottom connecting piece, 2171-bottom connecting rod, 2172-bottom connecting support plate, 2173-bottom connecting adapter, 218-bottom outer connecting rod, 219-bottom hanging piece, 22-standard unit, 221-standard top beam, 222-standard bottom beam, 223-standard diagonal support, 224-standard side column, 225-standard diagonal support, 226-standard outer connecting rod, 227-standard bottom connecting support, 2271-standard bottom connecting support body, 2272-Bidding lower connecting base link, 2273-Bidding lower connecting base adaptor, 228-Bidding connecting piece, 2281-Bidding link, 2282-Bidding upper connecting support plate, 2283-Bidding upper connecting adaptor, 229-Bidding hanger, 23-top unit, 231-Top Beam, 232-Top lower Beam, 233-Top side column, 234-Top inclined strut, 235-Top inclined strut, 236-Top outer Link, 237-Top lower connecting support, 2271-Top lower connecting support, 2272-Top lower connecting support Link, 2273-Top lower connecting support adaptor, 238-Top hanger, 24-cantilever unit, 241-cantilever platform, 242-cantilever vertical column, 243-cantilever side stop, 244-cantilever inclined strut, 245-cantilever vertical column, 3-bottom connecting piece, 31-buried ground tendon, 32-pressing beam, 33-fixing piece, 4-short column, 5-back ridge, 6-pin piece and 7-blocking piece.
Detailed Description
The engineering is divided into two parts of business and residence, wherein the business part is an upper 4 layers (local 5 layers), a lower one layer, the residence part is an upper 18 layers and a lower 3 layers. According to the structural design drawing show: a self-bearing wall with the thickness of 300mm is designed at one side of the supporting piles at the first floor and the second floor on the ground, which are close to the foundation pit section, and the relative elevation of the top of the wall body is 10.350 m. The building construction method is designed into the design of the outer side of the self-bearing wall as follows: 1.5 thick macromolecule self-adhesive film waterproof coiled material, 80 thick extruded polystyrene board (not less than 30Kg/m 3), 120 thick non-clay brick protective wall. Through on-site measurement and investigation, the distance between the reserved self-supporting wall steel bar and the outer side line of the root part of the supporting pile body is 600 mm. The distance between the outer line of the supporting pile crown beam and the self-bearing wall is 300 mm. The inner side of the self-bearing wall of the local section of the foundation pit is not provided with a construction working surface of the template 1, so that the template 1 of the self-bearing wall is supported by a tool type unilateral template supporting system in the supporting construction, the tool type template 1 is constructed according to running water, in addition, the requirement of turnover is considered, the height direction of the template 1 and the supporting system is subjected to unit section adding treatment, and the construction is configured according to the specific height.
As shown in fig. 1 to 5, a portable single-sided formwork support system comprises a vertical formwork 1, a support system 2 connected to one side of the formwork 1, a back ridge 5 connected between the formwork 1 and the support system 2 in the vertical direction, a pin 6 and a stopper 7 connected between the back ridge 5 and the support system 2, a bottom connecting piece 3 connected to the support system 2 in the vertical direction and located at the bottom of the support system 2, and a short column 4 connected to one side of the support system 2 away from the formwork 1;
in this embodiment, the supporting system 2 comprises a bottom unit 21, a standard unit 22 detachably connected to the upper portion of the bottom unit 21, a top unit 23 connected to the upper portion of the standard unit 22, and a cantilever unit 24 connected to the upper portion of the top unit 23; the standard units 22 are assembled and prefabricated in groups according to the height of the formwork 1.
In this embodiment, template 1 is steel form 1, and steel form 1 includes steel form 1 panel, and the panel all is equipped with the side rib all around, middle vertical welding inferior rib, connects through the transverse connection steel sheet between the inferior rib, and inferior rib outside welding back of the body is stupefied 5. The steel form 1 panel is 5mm thick steel form 1, the side rib is-8 x 75 steel sheet welding around steel form 1, the secondary rib is the vertical welding of 75 x 50 x 5 angle steel on steel form 1, the interval is not more than 300mm, adopt the transverse connection steel sheet to connect between the secondary rib, the transverse connection steel sheet is-6 x 70 steel sheet. And a back edge 5 is welded behind the secondary ribs, and the back edge 5 is 2 pieces of 10# channel steel. During construction, the error value of the diagonal line of the plate surface of the template 1 is less than 3.0mm, the height difference of the adjacent templates 1 is +/-0.5 mm, the splicing gap of the two templates 1 is +/-0.5 mm, the flatness of the plate surface is +/-0.5 mm, and the local deformation of the template 1 is not larger than 1.0 mm.
In this embodiment, the stubs 4 are detachably connected to the bottom outer link 218, the target outer link 226 and the top outer link 236 at intervals, and the horizontal stubs 4 are arranged in a row. The stub 4 welded to the support system 2 can be used to connect steel pipe stabilising brackets. The support angle can be adjusted to support afterbody regulation support. The pin piece 6 is a steel piece, the pin piece 6 comprises a hook head and a straight rod, the hook head is clamped below the back ridge 5, and the straight rod is fixed on the support system 2 through a nut; a stopper 7 is arranged on the support system 2 above the pin member 6, and the distance of the height difference between the pin member 6 and the stopper 7 is adapted to the height of the back ridge 5.
As shown in fig. 6 to 8, the bottom unit 21 is made of steel, and the bottom unit 21 includes a bottom cross beam 211, a bottom cross beam 212 disposed parallel to and below the bottom cross beam 211, a bottom side column 213 bolted to a side adjacent to the formwork 1, a bottom diagonal brace 214 bolted between the bottom cross beam 211 and the bottom cross beam 212, a bottom diagonal brace 215 bolted between the bottom side column 213 and the bottom cross beam 212, a bottom connecting support 216 bolted to an end of the bottom cross beam 212 outside the formwork 1, a bottom connecting member 217 bolted to an end of the bottom cross beam 211 outside the formwork 1, a bottom outer connecting rod 218 bolted between the bottom connecting support 216 and the bottom connecting member 217, and a bottom hanging member 219 connected to the bottom outer connecting rod 218 at intervals.
In this embodiment, the bottom connecting support 216 comprises a square bottom connecting support body 2161, a hydraulic jack 2162 penetrating one side of the bottom connecting support body 2161, a set of bottom connecting support rods 2163 bolted to the other side of the bottom connecting support body 2161, and a bottom connecting support adapter 2164 connected to the outer end of each bottom connecting support rod 2163; the bottom connecting support rods 2163 are arranged one by one corresponding to the bottom cross beam 212, the bottom inclined strut 214 and the bottom outer connecting rod 218.
In this embodiment, bottom link 217 comprises a bottom link 2171, a bottom link support plate 2172 coupled to the top of bottom link 2171, and a bottom link adapter 2173 coupled to bottom link 2171; the bottom connecting rods 2171 are arranged corresponding to the bottom cross beam 211, the bottom inclined struts 214 and the bottom outer connecting rods 218 one by one, wherein the top of the bottom connecting rods 2171 arranged corresponding to the bottom outer connecting rods 218 is connected with the bottom connecting support plate 2172.
In this embodiment, the bottom connecting piece 3 is a steel piece. The bottom connecting piece 3 includes an embedded rib 31 embedded in the ground in advance, a pressing beam 32 connected to the outer side of the bottom diagonal brace 215, and a fixing member 33 between the embedded rib 31 and the pressing beam 32. Wherein the compression beam 32 is 214 # channel-section steels, buries the ground muscle 31 and forms through buried bolt and external steel pole preparation, and mounting 33 is fastening nut.
As shown in fig. 9 to 11, the standard cell 22 is a steel member. Standard cell 22 includes a target upper beam 221, a target lower beam 222 disposed parallel to and below target upper beam 221, a target side post 224 bolted to a side adjacent to form 1, a target diagonal brace 223 bolted between target lower beam 222 and target upper beam 221, a target diagonal brace 225 bolted between target side post 224 and target lower beam 222, a target lower link support 227 bolted to an end of target lower beam 222 outside form 1, a target upper link 228 bolted to an end of target upper beam 221 outside form 1, a target outer link 226 bolted between target lower link support 227 and target upper link 228, and a target hanger 229 spaced apart from target outer link 226.
In this embodiment, the lower standard connection support 227 comprises a lower standard connection support body 2271, a lower standard connection support connecting rod 2272 bolted to the lower standard connection support body 2271, and a lower standard connection support adapter 2273 threadedly connected to the outer end of the lower standard connection support connecting rod 2272. The lower standard support base 2271 is a right triangle, wherein one of the right angles is connected to the upper standard support 2172 or the upper standard connection 228 of the lower standard unit 22, and the other right angle is connected to the lower standard support base connecting rod 2272; the lower standard connecting seat connecting rods 2272 are arranged one by one corresponding to the lower standard beam 222 and the outer standard connecting rods 226.
In this embodiment, the tag link 228 includes a tag link 2281, a tag link support plate 2282 coupled to the top of the tag link 228, and a tag link adapter 2283 threaded onto the outer end of the tag link 2281. The mark connecting rods 2281 are arranged one by one corresponding to the mark upper beam 221 and the mark outer connecting rods 226; the upper marked connecting support plate 2282 is connected with the upper marked connecting support plate or the top lower connecting support 237 correspondingly.
As shown in fig. 12 and 13, the top unit 23 is a steel member. The top unit 23 includes a top cross member 231, a top lower cross member 232 parallel to the top cross member 231 and located below the top cross member 231, a top side column 233 bolted to a side adjacent to the form 1, a top diagonal brace 234 bolted between the top cross member 231 and the top lower cross member 232, a top diagonal brace 235 bolted between the top side column 233 and the top lower cross member 232, a top lower tie bracket 237 bolted to an end of the top lower cross member 232 outside the form 1, a top outer tie rod 236 bolted between the top lower tie bracket 237 and the top side column 233, and a top hanger 238 connected to the top outer tie rod 226 at intervals.
In this embodiment, the top lower connecting support 237 includes a top lower connecting support body 2371, a top lower connecting support link 2372 bolted to the top lower connecting support body 2371, and a top lower connecting support adapter 2373 connected to the outer end of the top lower connecting support link 2372. The top lower connecting support body 2371 is a right triangle, wherein one right-angle side is correspondingly connected with the upper connecting piece 228, and the other right-angle side is correspondingly detachably connected with the top lower connecting support connecting rod 2372; the top lower connecting seat connecting rods 2372 are arranged one by one corresponding to the top lower cross beam 232 and the top outer connecting rods 236.
As shown in fig. 14, the cantilever includes a cantilever platform 241, a cantilever vertical post 242 connected to the cantilever platform 241 adjacent to the lower side of the template 1, a cantilever side stop 243 connected to the upper side of the cantilever platform 241 and far from the side of the template 1, a cantilever diagonal support 244 connected between the cantilever side stop 243 and the cantilever vertical post 242, and a cantilever inner vertical rod 245 connected between the cantilever platform 241 and the cantilever diagonal support 244. The outriggers are connected with the top unit 23 through bolts; each rod piece of the cantilever frame is welded by a steel pipe with the diameter of 48 multiplied by 3.5.
With reference to fig. 1 to 14, a construction method of a portable single-side formwork support system is further described, which specifically comprises the following steps:
step one, determining the height of a support system 2 according to the height of a template 1 to be supported, and determining the number of standard units 22 in the support system 2; separately manufacturing a bottom unit 21, a standard unit 22, a top unit 23 and a cantilever unit 24; pre-assembling tests are carried out on the lower connecting support 216, the bottom connecting piece 217, the lower marking connecting support 227, the upper marking connecting piece 228 and the lower jacking support 237, and a height lifting test is carried out on a hydraulic jack 2162 in the lower connecting support 216;
step two, installing buried ribs 31 in the corresponding underground of the template 1, wherein the buried ribs 31 are pre-buried according to an angle of 45 degrees, and the distance between the position of the buried ribs and the wall surface is 300 mm; the distance between every two buried ribs 31 is 250mm, and the buried ribs are wrapped by plastic cloth and are firmly tied;
thirdly, determining the distance between the supporting systems 2, wherein the distance between the supporting systems 2 at common positions is 800mm, and the maximum arrangement distance of the parts meeting the concrete columns is 1000 mm; when the template 1 is closed, aligning the lower opening of the template 1 with the pre-bounced side line, then installing a back edge 5, and temporarily supporting the template 1 by using a steel pipe;
step four, hoisting the support system 2, hoisting the bottom unit 21 through the bottom hoisting piece 219, connecting the side surface of the bottom unit 21 with the back ridge 5 through the pin piece 6 and the baffle, and connecting the bottom through the bottom connecting piece 3, wherein the pressing beam 32 is connected to the outer side of the bottom inclined connecting support 215; the whole levelness and verticality of the bottom unit 21 are adjusted by a hydraulic jack 2162 until the requirements are met, and the side surface and the bottom of the bottom unit 21 are finally fixed;
step five, hoisting the standard unit 22, the top unit 23 and the cantilever unit 24, wherein the lower marked connecting support 227 at the bottom of the standard unit 22 is aligned and connected with the bottom connecting piece 217, and the upper marked connecting piece 228 is aligned and connected with the lower marked connecting support 227; or a plurality of standard cells 22, the tag upper connector 228 is aligned with the upper tag lower connector 227; in addition, the bottom side column 213, the standard side column 224 and the top side column 233 are correspondingly connected and fixed with the back edge 5; then, one unit is installed along with the installation to carry out primary levelness and verticality calibration; and finally, connecting a support rod on the short column 4 to complete the integral construction of the single-side formwork 1 system.
In addition, during construction, because the bottom connecting piece 3 can not be directly spot-welded with the main structural reinforcement, in order to ensure that the bottom connecting piece 3 does not run or deviate during concrete pouring, additional reinforcements are required to be added at corresponding positions, the bottom connecting piece 3 is spot-welded on the additional reinforcements, and the effective diameter of the embedded part is not damaged during spot welding. When the template 1 is closed, the lower opening of the template 1 is aligned with the edge line which is bounced in advance, then the back edge 5 is installed, and the wall template 1 is supported by the steel pipe temporarily. A pressing beam 32 is inserted and connected after five or six single-side supporting systems 2 are installed in each straight wall body section; after the supporting system 2 is installed, the bottom connecting piece 3 is fastened, the back edge 5 of the template 1 and the supporting system 2 are connected into a whole by the pin piece 6, at the moment, the height of the bottom of the supporting system 2 is adjusted until the upper opening of the panel of the template 1 is inclined inwards by about 5-15 mm, and the lateral stress displacement of the template 1 is ensured to be proper so as to be vertical in the concrete pouring process. And finally, fastening and checking a stress system again to ensure that the lower opening of the template 1 cannot leak slurry during concrete pouring.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (7)
1. The construction method of the convenient single-side formwork support system is characterized in that the convenient single-side formwork support system comprises a vertical formwork (1), a support system (2) connected to one side of the formwork (1), a back ridge (5) connected between the formwork (1) and the support system (2) in the vertical direction, a pin piece (6) and a blocking piece (7) connected between the back ridge (5) and the support system (2), a bottom connecting piece (3) connected to the support system (2) in the vertical direction and located at the bottom of the support system (2), and a short column (4) connected to one side, far away from the formwork (1), of the support system (2);
the supporting system (2) comprises a bottom unit (21), a standard unit (22) detachably connected to the upper part of the bottom unit (21), a top unit (23) connected to the upper part of the standard unit (22) and a cantilever unit (24) connected to the upper part of the top unit (23); the standard units (22) are assembled and prefabricated in groups according to the height of the template (1);
the bottom unit (21) comprises a bottom cross beam (211), a bottom cross beam (212) which is arranged in parallel with the bottom cross beam (211) and is positioned below the bottom cross beam, a bottom side column (213) which is connected to one side of the adjacent template (1), a bottom inclined strut (214) which is connected between the bottom cross beam (211) and the bottom cross beam (212), a bottom inclined strut (215) which is connected between the bottom side column (213) and the bottom cross beam (212), a bottom connecting support (216) which is detachably connected to the end part of the bottom cross beam (212) at the outer side of the template (1), a bottom connecting piece (217) which is detachably connected to the end part of the bottom cross beam (211) at the outer side of the template (1), a bottom outer connecting rod (218) which is connected between the bottom connecting support (216) and the bottom connecting piece (217), and a bottom hanging piece (219) which is connected to the bottom outer connecting rod (218) at intervals;
the lower connecting support (216) comprises a square lower connecting support body (2161), a hydraulic jack (2162) penetrated and connected to one side of the lower connecting support body (2161), a group of lower connecting support connecting rods (2163) detachably connected to the other side of the lower connecting support body (2161), and a lower connecting support adapter (2164) connected to the outer end part of each lower connecting support connecting rod (2163); the bottom connecting support connecting rods (2163) are arranged one by one corresponding to the bottom cross beam (212), the bottom inclined strut (214) and the bottom outer connecting rod (218);
the standard unit (22) comprises an upper marking beam (221), a lower marking beam (222) which is arranged in parallel with the upper marking beam (221) and is positioned below the upper marking beam, a marking side column (224) which is connected to one side of the adjacent template (1), a marking inclined support (223) which is connected between the lower marking beam (222) and the upper marking beam (221), a marking inclined connecting support (225) which is connected between the marking side column (224) and the lower marking beam (222), a lower marking connecting support (227) which is detachably connected to the end part of the outer lower marking beam (222) of the template (1), an upper marking connecting piece (228) which is detachably connected to the end part of the outer upper marking beam (221) of the template (1), an outer marking connecting rod (226) which is connected between the lower marking connecting support (227) and the upper marking connecting piece (228), and a marking hanging piece (229) which is connected to the outer marking connecting rod (226) at intervals;
the top unit (23) comprises a top cross beam (231), a top lower cross beam (232) which is parallel to the top cross beam (231) and is positioned below the top cross beam (231), a top side column (233) connected to one side of the adjacent formwork (1), a top inclined strut (234) connected between the top upper cross beam (231) and the top lower cross beam (232), a top inclined connecting strut (235) connected between the top side column (233) and the top lower cross beam (232), a top lower connecting support (237) detachably connected to the end part of the top lower cross beam (232) at the outer side of the formwork (1), a top outer connecting rod (236) connected between the top lower connecting support (237) and the top side column (233), and top hanging pieces (238) connected to the outer connecting rod (226) at intervals;
the bottom connecting piece (3) comprises a buried rib (31) buried underground in advance, a pressing beam (32) connected to the outer side of the bottom inclined connecting support (215), and a fixing piece (33) between the buried rib (31) and the pressing beam (32);
the construction method of the portable unilateral formwork support system comprises the following specific steps:
step one, determining the height of a support system (2) according to the height of a template (1) to be supported, and determining the number of standard units (22) in the support system (2); respectively and independently manufacturing a bottom unit (21), a standard unit (22), a top unit (23) and a cantilever unit (24); pre-assembling tests are carried out on a lower connecting support (216), a bottom connecting piece (217), a lower marking connecting support (227), an upper marking connecting piece (228) and a lower jacking support (237), and a height lifting test is carried out on a hydraulic jack (2162) in the lower connecting support (216);
step two, installing buried ribs (31) in the corresponding underground of the template (1), wherein the buried ribs (31) are pre-buried according to an angle of 45 degrees, and the distance between the position of the buried ribs and the wall surface is 300 mm; the distance between the buried ground ribs (31) is 250mm, and the buried ground ribs are wrapped by plastic cloth and are firmly tied;
thirdly, determining the distance between the supporting systems (2), wherein the distance between the supporting systems (2) at common positions is 800mm, and the maximum arrangement distance of the local concrete columns is 1000 mm; when the template (1) is closed, aligning the lower opening of the template (1) with the pre-bounced side line, then installing a back edge (5), and temporarily supporting the template (1) by using a steel pipe;
hoisting the support system (2), hoisting the bottom unit (21) through a bottom hoisting piece (219), connecting the side surface of the bottom unit (21) with a back ridge (5) through a pin piece (6) and a baffle, connecting the bottom of the bottom unit through a bottom connecting piece (3), and connecting a pressure beam (32) to the outer side of a bottom inclined connecting support (215); the whole levelness and verticality of the bottom unit (21) are adjusted by a hydraulic jack (2162) until the requirements are met, and the side surface and the bottom of the bottom unit (21) are finally fixed;
step five, hoisting the standard unit (22), the top unit (23) and the cantilever unit (24), wherein a lower marked connecting support (227) at the bottom of the standard unit (22) is connected with a lower bottom connecting piece (217) in an aligning manner, and an upper marked connecting piece (228) is connected with the lower marked connecting support (227) in an aligning manner; or when a plurality of standard units (22) are contained, the mark upper connecting piece (228) is connected with the mark lower connecting support (227) on the upper part in an aligning way; in addition, the bottom side column (213), the mark side column (224) and the top side column (233) are correspondingly connected and fixed with the back edge (5); then, carrying out primary levelness and verticality calibration along with the installation of one unit; and finally, connecting a support rod on the short column (4) to complete the integral construction of the single-side formwork (1) system.
2. The method of claim 1, wherein said bottom link (217) comprises a bottom link (2171), a bottom link support plate (2172) attached to a top portion of said bottom link (2171), a bottom link adapter (2173) attached to said bottom link (2171); the bottom connecting rods (2171) are arranged corresponding to the bottom cross beams (211), the bottom inclined struts (214) and the bottom outer connecting rods (218) one by one, wherein the tops of the bottom connecting rods (2171) arranged corresponding to the bottom outer connecting rods (218) are connected with bottom connecting supporting plates (2172).
3. The construction method of a portable unilateral formwork support system according to claim 2, wherein the sub-standard connection support (227) comprises a sub-standard connection support body (2271), a sub-standard connection support connecting rod (2272) detachably connected to the sub-standard connection support body (2271), and a sub-standard connection support adapter (2273) connected to an outer end portion of the sub-standard connection support connecting rod (2272); the lower standard connecting support seat body (2271) is a right-angled triangle, wherein one right-angled edge is connected with the upper standard connecting piece (228) of the upper standard supporting plate (2172) or the standard unit (22) at the lower part correspondingly, and the other right-angled edge is connected with the lower standard connecting support seat connecting rod (2272) correspondingly in a detachable way; the lower mark connecting support connecting rods (2272) are arranged one by one corresponding to the lower mark cross beam (222) and the outer mark connecting rods (226);
the top lower connecting support (237) comprises a top lower connecting support body (2371), a top lower connecting support connecting rod (2372) detachably connected to the top lower connecting support body (2371), and a top lower connecting support adapter (2373) connected to the outer end part of the top lower connecting support connecting rod (2372); the top and lower connecting support seat body (2371) is a right-angled triangle, wherein one right-angled edge is correspondingly connected with the upper connecting piece (228), and the other right-angled edge is correspondingly detachably connected with the top and lower connecting support seat connecting rod (2372); the top lower connecting seat connecting rods (2372) are arranged one by one corresponding to the top lower cross beam (232) and the top outer connecting rods (236).
4. A method of constructing a portable single-sided formwork support system as claimed in claim 3, wherein said sign-up link (228) comprises a sign-up link (2281), a sign-up support plate (2282) connected to the top of the sign-up link (228), and a sign-up link adapter (2283) connected to the outer end of the sign-up link (2281); the marking connecting rods (2281) are arranged one by one corresponding to the marking cross beam (221) and the marking outer connecting rods (226); the upper marked support connecting plate (2282) is connected with the upper marked lower connecting support plate or the top lower connecting support (237).
5. The construction method of the portable single-sided formwork support system according to claim 4, wherein the outrigger unit (24) comprises an outrigger platform board (241), an outrigger upright post (242) connected to the outrigger platform board (241) below the side close to the formwork (1), an outrigger side stop (243) connected to the side above the outrigger platform board (241) and far away from the formwork (1), an outrigger diagonal support (244) connected between the outrigger side stop (243) and the outrigger upright post (242), and an outrigger inner upright post (245) connected between the outrigger platform board (241) and the outrigger diagonal support (244).
6. The construction method of the portable single-sided formwork support system according to claim 5, wherein the short columns (4) are detachably connected with the bottom outer connecting rod (218), the mark outer connecting rod (226) and the top outer connecting rod (236) at intervals, and the horizontal short columns (4) are arranged in rows.
7. The construction method of the portable single-side formwork support system according to claim 1, wherein the pin member (6) comprises a hook head and a straight rod, wherein the hook head is clamped below the back ridge (5), and the straight rod is fixed on the support system (2) through a nut; a stopper (7) is arranged on the support system (2) above the pin piece (6), and the distance of the height difference between the pin piece (6) and the stopper (7) is adapted to the height of the back ridge (5).
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| CN202011357290.7A CN112523258B (en) | 2020-11-27 | 2020-11-27 | Portable single-side formwork supporting system and construction method thereof |
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| CN101839061A (en) * | 2010-05-06 | 2010-09-22 | 中国建筑第二工程局有限公司 | Cast-in-place concrete arc outer wall single-side formwork system and construction method thereof |
| KR101209765B1 (en) * | 2011-09-02 | 2012-12-07 | 주식회사 인동철강 | Retaining wall and one side form supporter |
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| CN101839061A (en) * | 2010-05-06 | 2010-09-22 | 中国建筑第二工程局有限公司 | Cast-in-place concrete arc outer wall single-side formwork system and construction method thereof |
| KR101209765B1 (en) * | 2011-09-02 | 2012-12-07 | 주식회사 인동철강 | Retaining wall and one side form supporter |
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