CN114592685A - Cast-in-place stair template and construction method - Google Patents
Cast-in-place stair template and construction method Download PDFInfo
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- CN114592685A CN114592685A CN202210368428.6A CN202210368428A CN114592685A CN 114592685 A CN114592685 A CN 114592685A CN 202210368428 A CN202210368428 A CN 202210368428A CN 114592685 A CN114592685 A CN 114592685A
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- side plates
- cast
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000009415 formwork Methods 0.000 claims description 8
- 239000011083 cement mortar Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 230000006378 damage Effects 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 3
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- 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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
Abstract
The application discloses a cast-in-situ stair template and a construction method, which relate to the technical field of stair templates, and the cast-in-situ stair template comprises a support frame and a support bottom plate, wherein the support bottom plate is fixedly arranged on the support frame, two sides of the support bottom plate are provided with side plates, the support bottom plate is provided with a plurality of vertical plates perpendicular to the side plates, two ends of each vertical plate are connected with the two side plates, each vertical plate is provided with a sealing plate, double rows of fixing tubes are arranged between the two side plates, the fixing tubes are abutted against the vertical plates, the support bottom plate is provided with a plurality of groups of fixing assemblies, each fixing assembly comprises a fixing rod and a pressing piece, a sleeve is arranged between the sealing plate and the support bottom plate, the two fixing rods respectively penetrate through the support bottom plate and the sealing plate and are inserted in the sleeve in a threaded manner, the fixing rods penetrate through the two fixing tubes, the pressing pieces are slidably arranged on the fixing rods, the pressing pieces are abutted against the support bottom plate and the fixing tubes, and fastening blocks are arranged on the threads on the fixing rods, the sleeve pipe intussuseption is filled with the expansion glue, and two dead levers are contradicted on the expansion glue. The fixing rod checking and dismounting method is simpler in checking and dismounting of the fixing rod.
Description
Technical Field
The application relates to the technical field of stair templates, in particular to a cast-in-place stair template and a construction method.
Background
The stair is an important structure in the house building, at present, along with the development of house building science, the requirements of building patterns such as housing, capital construction and the like are continuously improved, the design style of buildings is continuously developed, the design modes of high-rise and super high-rise buildings are increasingly increased, and on the other hand, the building industry has certain requirements on the safety, quality, progress and cost of the buildings. The stairway is an important structure in the building construction, is an important passage between an upper floor and a lower floor, and is special in shape, so that a special mold is required for pouring construction.
At present stair construction's in-process, earlier according to the shape size preparation stair template of design, assemble into trapezoidal supporting baseplate with the equipment board again, then pour the concrete on supporting baseplate, demolish the template after the concrete solidifies completely, in order to guarantee pouring the stability of accomplishing the back template, generally can fix the template with the fixed steel pipe of split screw in the upper and lower both sides of stair template, nevertheless it is difficult to take out from the stair of pouring to split screw when demolising, cause the destruction to the stair structure of pouring easily.
Disclosure of Invention
In order to improve and demolish the problem that makes and cause destruction to stair structure easily to the tie rod, this application provides a cast-in-place stair template and construction method.
The application provides a cast-in-place stair template and a construction method, which adopt the following technical scheme:
in a first aspect, the present application provides a cast-in-place stair template, which adopts the following technical scheme:
a cast-in-place stair template relates to the technical field of stair templates, and comprises a support frame and a support bottom plate, wherein the support bottom plate is fixedly arranged on the support frame along the inclined direction, two sides of the support bottom plate are provided with side plates along the length direction, the support bottom plate is uniformly provided with a plurality of vertical plates perpendicular to the side plates along the length direction, two ends of each vertical plate are respectively connected with the two side plates, a sealing plate is horizontally arranged on each vertical plate, a double-row fixing pipe is arranged between the two side plates along the length direction of the support bottom plate and is abutted against the vertical plates, the support bottom plate is provided with a plurality of groups of fixing assemblies for pressing the fixing pipes along the length direction, each fixing assembly comprises a fixing rod and a pressing piece, a sleeve is arranged between each sealing plate and the support bottom plate along the direction perpendicular to the support bottom plate, and the two fixing rods respectively penetrate through the support bottom plate and the sealing plates and are inserted in the sleeve in a threaded manner, the fixing rod located on the sealing plate penetrates between the two fixing pipes, the pressing piece is arranged on the fixing rod in a sliding mode, the pressing piece is abutted to the supporting bottom plate and the fixing pipes, a fastening block for abutting the pressing piece tightly is arranged on the fixing rod in a threaded mode, expansion glue is filled in the sleeve, and the two fixing rods are abutted to the expansion glue.
Through adopting above-mentioned technical scheme, the completion is pour to stair and the back that solidifies, need demolish the template, changes the fastening block from the dead lever, will compress tightly the piece and pull down from the dead lever, rotates the dead lever and makes the dead lever break away from the sleeve pipe, can avoid causing destruction to the good stair of pouring when demolising the dead lever, influences stair intensity, and the dead lever is pulled apart the back expansion glue and is expanded at the sleeve pipe intumescence, is full of the sleeve pipe intussuseption, can plug up the sleeve pipe, plays waterproof effect.
Optionally, both ends in the sleeve are equipped with the plunger, the plunger slides and sets up in the sleeve, the plunger is contradicted in the inflation and is glued, the dead lever is contradicted on the plunger.
Through adopting above-mentioned technical scheme, the dead lever is pulled apart the back, need do the shutoff to sheathed tube mouth of pipe, and the stopper post removes sheathed tube mouth of pipe position under the effect of inflation glue, plays the shutoff effect to the sleeve pipe for stair tread and stair bottom are more level and more smooth.
Optionally, a sliding groove is formed in the inner wall of the sleeve along the length direction of the sleeve, groove walls at two ends of the sliding groove are close to end portions of two ends of the sleeve, a clamping block is arranged on one side, close to the expansion glue, of the side wall of the plug column, and the clamping block is clamped in the sliding groove.
Through adopting above-mentioned technical scheme, the stopper post slides in the spout through the fixture block, and when the inflation was glued and is made the stopper post remove, the spout can play spacing effect to the stopper post, avoids the stopper post to remove the sheathed tube outside, and the fixture block can block on the cell wall of spout for the one end that the inflation was glued is kept away from to the stopper post flushes with the stair surface, can make the stair surface level more.
Optionally, the sleeve is provided with two sections, and the two sections of the sleeve are connected through threads.
Through adopting above-mentioned technical scheme, pass through threaded connection with two sleeve pipes and be in the same place, conveniently install the stopper post in the sleeve pipe.
Optionally, a demolding assembly is arranged in the vertical plate, the demolding assembly includes two pull rods and a control tube, the two pull rods are hinged to the two adjacent vertical plates and the two adjacent sealing plates respectively, and the two pull rods are respectively inserted into two ends of the control tube in a threaded manner.
Through adopting above-mentioned technical scheme, when needing to demolish stair template, the rotation control pipe makes two pull rods remove to the control pipe, and the pull rod can stimulate riser and shrouding at removing the in-process, makes riser and shrouding drop from the stair that solidifies, can make demolising operation of riser and shrouding simpler, can not make stair destruction simultaneously.
Optionally, a plurality of mounting grooves are respectively formed in the opposite surfaces of the two side plates in the vertical direction and the horizontal direction, and the vertical plate and the sealing plate are inserted into the mounting grooves.
Through adopting above-mentioned technical scheme, install riser and shrouding in the mounting groove of curb plate for the installation operation of riser and shrouding is simpler, and the mounting groove can play spacing effect to riser and shrouding simultaneously, can avoid concrete extrusion riser and shrouding when solidifying, makes the condition of displacement appear in riser and shrouding, makes riser and shrouding install more firmly on the curb plate.
Optionally, two be equipped with the multiunit between the curb plate and be used for the subassembly of drawing of fixed curb plate, draw the subassembly including drawing the screw rod and supporting tight piece, draw the screw rod to pass two curb plates, support tight piece screw thread and set up in the both ends of drawing the screw rod, support tight piece and contradict in the curb plate, the bottom side of curb plate is equipped with the fixed plate, the fixed plate is contradicted in the bottom of supporting baseplate, the fixed rod passes the fixed plate, just compress tightly the piece and contradict in the fixed plate.
Through adopting above-mentioned technical scheme, can play the fixed action to the curb plate to the subassembly that draws, can avoid the concrete to cause the extrusion to the curb plate in the solidification process, make the curb plate move to both sides and cause the condition that stair appear warping, fix the fixed plate on the curb plate on the supporting baseplate simultaneously, can further play the fixed action to the curb plate for the installation of curb plate is more firm.
Optionally, the bottom of the supporting bottom plate is provided with an anti-slip block, and the anti-slip block abuts against the supporting frame.
Through adopting above-mentioned technical scheme, install supporting baseplate on the support frame, because supporting baseplate is the inclined state and appears sliding easily, set up the non slipping spur in supporting baseplate's bottom, can avoid supporting baseplate to appear gliding condition on the support frame for supporting baseplate installs more firmly on the support frame.
In a second aspect, the present application further provides a construction method of a cast-in-place stair formwork, including the following steps:
s1, measuring and paying off, namely building a support frame by using a steel pipe, forming an anti-skid block by using triangular wood on the top of a support bottom plate, fixing the support bottom plate on the support frame and enabling the anti-skid block to abut against the steel pipe of the support frame;
s2, arranging mounting grooves in the side plates in a proper size, fixing the side plates on two sides of the support bottom plate, and inserting the vertical plates and the sealing plates into the mounting grooves of the side plates;
s3, forming holes in the two side plates, penetrating the counter-pull screw through the two side plates, and enabling the abutting blocks to abut against the side plates;
s4, installing the plug into the sleeve through a sliding groove in the sleeve, filling expansion glue into the sleeve, connecting the two sleeves through threads, and installing the fixed rod at the two ends of the sleeve through the threads;
s5, holes are formed in the sealing plate, the supporting bottom plate and the fixing plate, and the fixing pipes in double rows are fixed on two sides of the stair template through the fixing assemblies;
s6, mounting two pull rods in the control tube in a threaded manner, adjusting the length of the control tube, and hinging the two pull rods on the vertical plate and the sealing plate;
s7, pouring concrete;
s8, removing the fixing component and the opposite pulling component, removing the two side plates, rotating the control tube to pull the two pull rods to demould the sealing plate and the vertical plate from the poured stair, removing the supporting bottom plate, and trowelling the position with the sleeve on the stair surface by cement mortar.
In summary, the present application includes at least one of the following advantages:
1. the template is required to be dismantled, the fastening block is rotated away from the fixing rod, the pressing piece is dismantled from the fixing rod, the fixing rod is rotated to enable the fixing rod to be separated from the sleeve, damage to a poured stair when the fixing rod is dismantled can be avoided, the strength of the stair is influenced, the expansion glue expands in the sleeve after the fixing rod is dismantled, the sleeve is filled with the expansion glue, the sleeve can be blocked, and the waterproof effect is achieved;
2. after the fixing rod is detached, the plug column moves to the position of the pipe orifice of the sleeve pipe under the action of the expansion glue, so that the sleeve pipe is blocked, one end of the plug column, far away from the expansion glue, is flush with the surface of the stair, and the surface of the stair can be more flat;
3. when stair template need be demolishd, the control tube rotates, makes two pull rods remove to the control tube, and the control tube can stimulate riser and shrouding at the removal in-process, makes riser and shrouding drop from the stair that solidifies, can make demolising operation of riser and shrouding simpler, can not make stair destruction simultaneously.
Drawings
Fig. 1 is a schematic structural view of a cast-in-place stair formwork according to an embodiment of the present application.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 2.
Description of reference numerals:
1. a support frame; 2. a support base plate; 21. a side plate; 211. mounting grooves; 212. a fixing plate; 22. a vertical plate; 23. closing the plate; 24. a fixed tube; 25. anti-skid blocks; 25. reinforcing the pipe; 3. a fixing assembly; 31. fixing the rod; 32. a compression member; 33. a sleeve; 331. expanding glue; 332. a plug; 333. a chute; 334. a clamping block; 34. a fastening block; 4. a demolding component; 41. a pull rod; 42. a control tube; 5. a counter-pull component; 51. oppositely pulling the screw rod; 52. and a supporting block.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a cast-in-place stair template. Referring to fig. 1 and 2, a cast-in-place stair template includes support frame 1 and supporting baseplate 2, and support frame 1 uses the steel pipe to build and forms, and supporting baseplate 2 is the slope state and sets up on support frame 1. The two sides of the support base plate 2 are fixed with side plates 21, and the side plates 21 extend along the length direction of the support base plate 2. Evenly install polylith riser 22 between two blocks of curb plates 21, riser 22 sets up on supporting baseplate 2 along vertical direction, is fixed with shrouding 23 on the riser 22, and the both sides of shrouding 23 are connected with two blocks of riser 22 adjacent respectively, seals between the riser 22 and forms confined space, pours the concrete into confined space and forms the stair.
Because supporting baseplate 2 is the tilt state, slide appears easily on support frame 1, in order to avoid supporting baseplate 2 to slide on support frame 1, be fixed with the non slipping spur 25 of triangle wood preparation at supporting baseplate 2's bottom plate, non slipping spur 25 contradicts on support frame 1's steel pipe, non slipping spur 25 can with supporting baseplate 2 card on support frame 1, can avoid supporting baseplate 2 to appear gliding condition on support frame 1, make supporting baseplate 2 install more firm on support frame 1.
In order to make curb plate 21 installation more firm, the both sides of curb plate 21 evenly install the multiunit along the length direction of curb plate 21 and to drawing subassembly 5, to drawing subassembly 5 including to drawing screw rod 51 and supporting tight piece 52, to drawing screw rod 51 and passing two blocks of curb plates 21, support tight piece 52 screw thread and install the both ends of drawing screw rod 51 and support tightly on two blocks of curb plates 21, play the fixed action to two blocks of curb plates 21, the concrete can be to stair template extrusion in the solidification process simultaneously, to drawing subassembly 5 and can make two blocks of curb plates 21 hug closely on supporting baseplate 2, reduce curb plate 21 and receive the possibility of extrusion deformation, make curb plate 21 installation more firm.
In order to make the side plates 21 bear more uniform force, two reinforcing pipes 25 made of steel pipes are arranged on two sides of the two side plates 21 along the vertical direction, a counter-pull screw 51 penetrates through the two reinforcing pipes 25, a abutting block 52 abuts against the two reinforcing pipes 25, and the abutting block 52 is tightly fastened on the counter-pull screw 51 through a nut. The split component can increase the contact area between the split component 5 and the side plate 21 by applying an acting force to the reinforcing pipe 25, so that the stress of the two side plates 21 is more uniform, and the two side plates 21 are more stably installed.
Referring to fig. 1 and 2, in order to make the vertical plate 22 and the closing plate 23 more stably installed on the side plate 21, a plurality of installation grooves 211 for installing the vertical plate 22 and the closing plate 23 are opened on the opposite surfaces of the two side plates 21, the installation grooves 211 for installing the vertical plate 22 are arranged on the side plate 21 along the vertical direction, when the vertical plate 22 is installed, the vertical plate 22 is inserted into the side plate 21 along the installation grooves 211, the installation grooves 211 for installing the closing plate 23 are arranged along the horizontal direction, when the closing plate 23 is installed, the closing plate 23 is inserted into the side plate 21 along the installation grooves 211, and the closing plate 23 abuts against the vertical plate 22. The mounting groove 211 can play spacing effect to riser 22 and shrouding 23, can avoid concrete extrusion riser 22 and shrouding 23 when solidifying, makes the condition of displacement appear in riser 22 and shrouding 23 for riser 22 and shrouding 23 install more firmly on curb plate 21.
Referring to fig. 2 and 3, in order to further increase the overall strength of the stair template, a plurality of sets of fixing assemblies 3 are installed in the stair template, each fixing assembly 3 includes two fixing rods 31 and a pressing piece 32, and the pressing pieces 32 are slidably disposed at two ends of each fixing rod 31. A sleeve 33 is arranged between the closing plate 23 and the support base plate 2, the sleeve 33 is perpendicular to the support base plate 2, and the end part of the sleeve 33 close to one end of the closing plate 23 is obliquely arranged and is flush with the closing plate 23. The two fixing rods 31 are respectively inserted into two ends of the sleeve 33 through the closing plate 23 and the supporting base plate 2, and the sleeve 33 is filled with the expansion glue 331. The fixed pipe 24 that installs two steel pipe preparations is also all established to the both sides that lie in being close to two curb plates 21 on the shrouding 23, and fixed pipe 24 sets up along supporting baseplate 2 length direction, and dead lever 31 passes between two fixed pipes 24, and the piece 32 that compresses tightly on two dead levers 31 is pressed respectively on two fixed pipes 24 and supporting baseplate 2, and the last screw thread of dead lever is provided with fastening block 34, and fastening block 34 supports tightly on compressing tightly piece 32.
The fixed pipe 24 of double setting can increase the bulk strength of whole template for whole template can bear bigger extrusion force, two dead levers 31 screw thread insert establish in sleeve pipe 33 simultaneously, conveniently pull down dead lever 31 from the sleeve pipe 33 when form removal, the stair of avoiding pouring receive the damage, inflation is glued 331 and can be expanded in sleeve pipe 33 simultaneously, pull down back inflation glue 331 with dead lever 31 and can be filled up with whole root sleeve pipe 33, play waterproof effect.
In order to better close the sleeve 33, the plug 332 is slidably mounted at two ends in the sleeve 33, two ends of the plug 332 respectively abut against the fixing rod 31 and the expansion glue 331, wherein one end of the plug 332 close to the sealing plate 23 is an inclined surface, and the inclined end is the end close to the sealing plate 23. Two plugs 332 remove to the mouth of pipe direction of sleeve pipe 33 under the effect of inflation glue 331 after dead lever 31 is dismantled for plug 332 removes to the mouth of pipe position of sleeve pipe 33, can make stair tread and stair bottom more level and more smooth, and the plug is fixed in sleeve pipe 33 under the effect of inflation glue 331, and the position that stair were provided with sleeve pipe 33 is scribbled and is established cement mortar and cover plug 332, can also make the stair guarantee level and more smooth when not influencing stair intensity.
Referring to fig. 2 and 3, in order to prevent the plug 332 from separating from the casing 33 in the moving process, a sliding groove 333 is formed in the inner wall of the casing 33 along the length direction of the sliding groove, groove walls at two ends of the sliding groove 333 are respectively close to two end positions of the casing 33, a clamping block 334 is arranged on one side of each of the side walls of the two plug 332 close to the expansion glue 331, and the clamping block 334 is clamped in the sliding groove 333, so that the plug 332 can only move in the casing 33 along the sliding groove 333, meanwhile, the groove walls at two ends of the sliding groove 333 can limit the plug 332, the plug 332 is prevented from sliding out of the casing 33, and one end of the plug 332, which is far away from the expansion glue 331, can be flush with the surface of the staircase.
In order to facilitate the installation of the plug 332 in the casing 33, the casing 33 is provided in two sections, the two casing 33 is screwed together, and when the plug 332 is installed, the two casing 33 is disassembled, and the plug 332 and the expansion glue 331 are filled in the casing 33, so that the installation of the plug 332 is facilitated.
In order to further increase the stability of the installation of the side plates 21, the fixing plates 212 are installed at the bottoms of the two side plates 21, the fixing plates 212 are perpendicular to the side plates 21, the fixing plates 212 are tightly attached to two sides of the bottom of the supporting bottom plate 2, the fixing pipes 24 are placed on the fixing plates 212, the fixing rods 31 penetrate through the fixing plates 212, and the fixing plates 212 are fixed on the supporting bottom plate 2, so that the installation stability of the side plates 21 is further increased, and the side plates 21 can bear larger extrusion force.
Form the stair after the concrete that pours solidifies, need demolish the template, demolish two blocks of curb plates 21 backs, in order to make shrouding 23 and riser 22 more conveniently demolish, can not influence the roughness on stair surface again when demolising, install drawing of patterns subassembly 4 between adjacent riser 22 and shrouding 23, drawing of patterns subassembly 4 includes two pull rods 41 and control tube 42, two pull rods 41 are articulated with riser 22 and shrouding 23 respectively, the other end screw thread of two pull rods 41 is inserted and is located in the control tube 42, and the screw thread opposite direction on two pull rods 41. When riser 22 and shrouding 23 need be demolishd, control tube 42 rotates, makes two pull rods 41 remove in to control tube 42, and pull rod 41 can stimulate riser 22 and shrouding 23 at the removal in-process, makes riser 22 and shrouding 23 drop from the stair that solidifies, can make riser 22 and shrouding 23 demolish the operation simpler, can not lead to the fact the destruction to the stair surface simultaneously.
The cast-in-situ stair template has the following implementation principle: when the fixing component 3 is removed, the fastening block 34 is rotated away from the fixing rod 31, the pressing piece 32 and the fixing tube 24 are removed, the fixing rod 31 is rotated, the fixing rod 31 is removed from the sleeve 33, and the plug 332 moves to the position of the nozzle of the sleeve 33 under the action of the expansion glue 331 after the fixing rod 31 is removed. The two side plates 21 are removed, the opposite plate 22 and the closing plate 23 are removed, the control tube 42 is rotated to enable the two pull rods 41 to move, and the pull rods 41 pull the opposite plate 22 and the closing plate 23 in the moving process, so that the opposite plate 22 and the closing plate 23 fall off from the stairs.
The embodiment of the application also discloses a construction method of the cast-in-place stair template. A construction method of a cast-in-place stair template comprises the following steps:
s1, measuring and paying off, building the support frame 1 by using a steel pipe, forming the anti-skidding block 25 by using a triangular wood on the top of the support bottom plate 2, fixing the support bottom plate 2 on the support frame 1 and enabling the anti-skidding block 25 to abut against the steel pipe of the support frame 1;
s2, setting mounting grooves 211 on the side plates 21 in a certain size, fixing the side plates 21 on two sides of the support bottom plate 2, and inserting the vertical plate 22 and the closing plate 23 into the mounting grooves 211 of the side plates 21;
s3, forming holes in the two side plates 21, penetrating the counter-pull screw 51 through the two side plates 21, and enabling the abutting block 52 to abut against the side plates 21;
s4, installing the plug 332 into the sleeve 33 through the chute 333 in the sleeve, filling the sleeve 33 with expansion glue 331, connecting the two sleeves 33 through threads, and installing the fixing rod 31 at the two ends of the sleeve 33 through threads;
s5, holes are formed in the closing plate 23, the supporting bottom plate 2 and the fixing plate 212, and the fixing pipes in double rows are fixed on two sides of the stair template through the fixing component 3;
s6, installing the two pull rods 41 in the control tube 42 in a threaded manner, adjusting the length of the control tube, and hinging the two pull rods 41 on the vertical plate 22 and the closing plate 23;
s7, pouring concrete;
s8, removing the fixing component 3 and the counter-pulling component 5, removing the two side plates 21, rotating the control tube 42 to pull the two pull rods 41 to demould the sealing plate 23 and the vertical plate 22 from the poured stair, removing the supporting bottom plate 2, and leveling the position with the sleeve 33 on the stair surface by cement mortar.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a cast-in-place stair template, includes support frame (1) and supporting baseplate (2), its characterized in that: the supporting base plate (2) is fixedly arranged on the supporting frame (1) along the inclined direction, side plates (21) are arranged on two sides of the supporting base plate (2) along the length direction, a plurality of vertical plates (22) perpendicular to the side plates (21) are uniformly arranged on the supporting base plate (2) along the length direction, two ends of each vertical plate (22) are respectively connected with the two side plates (21), a sealing plate (23) is horizontally arranged on each vertical plate (22), two rows of fixing tubes (24) are arranged between the two side plates (21) along the length direction of the supporting base plate (2), the fixing tubes (24) are abutted against the vertical plates (22), a plurality of groups of fixing assemblies (3) for pressing the fixing tubes (24) are arranged on the supporting base plate (2) along the length direction, each fixing assembly (3) comprises a fixing rod (31) and a pressing piece (32), a sleeve (33) is arranged between each sealing plate (23) and the supporting base plate (2) along the direction perpendicular to the supporting base plate (2), two dead lever (31) pass supporting baseplate (2) and shrouding (23) screw respectively and insert and locate sleeve pipe (33), are located shrouding (23) dead lever (31) pass between two fixed pipes (24), compress tightly that piece (32) slide to set up on dead lever (31), compress tightly that piece (32) contradict on supporting baseplate (2) and fixed pipe (24), the screw thread is equipped with fastening block (34) that will compress tightly piece (32) and support tightly on dead lever (31), sleeve pipe (33) intussuseption is filled with expansion glue (331), two dead lever (31) are contradicted on expansion glue (331).
2. A cast-in-place stair formwork as claimed in claim 1, wherein: the two ends in the sleeve (33) are provided with plug columns (332), the plug columns (332) are arranged on the sleeve (33) in a sliding mode, the plug columns (332) abut against the expansion glue (331), and the fixing rod (31) abuts against the plug columns (332).
3. A cast-in-place stair formwork as claimed in claim 2, wherein: the improved plug is characterized in that a sliding groove (333) is formed in the inner wall of the sleeve (33) along the length direction of the sleeve, the groove walls at the two ends of the sliding groove (333) are close to the end portions of the two ends of the sleeve (33), a clamping block (334) is arranged on one side, close to the expansion glue (331), of the side wall of the plug column (332), and the clamping block (334) is clamped in the sliding groove (333).
4. A cast-in-place stair template according to claim 3, wherein: the sleeve (33) is provided with two sections, and the two sections of the sleeve (33) are connected through threads.
5. A cast-in-place stair formwork as claimed in claim 1, wherein: the vertical plates (22) are internally provided with a demolding assembly (4), the demolding assembly (4) comprises two pull rods (41) and a control tube (42), the two pull rods (41) are respectively hinged with the two adjacent vertical plates (22) and the two adjacent sealing plates (23), and the two pull rods (41) are respectively inserted at two ends of the control tube (42) in a threaded manner.
6. The cast-in-place stair template according to claim 5, wherein: the opposite surfaces of the two side plates (21) are respectively provided with a plurality of mounting grooves (211) along the vertical direction and the horizontal direction, and the vertical plate (22) and the closing plate (23) are inserted into the mounting grooves (211).
7. A cast-in-place stair formwork as claimed in claim 6, wherein: two be equipped with multiunit between curb plate (21) and be used for fixed curb plate (21) to drawing subassembly (5), to drawing subassembly (5) including to drawing screw rod (51) and supporting tight piece (52), to drawing screw rod (51) and passing two curb plate (21), support tight piece (52) screw thread and set up in the both ends to drawing screw rod (51), support tight piece (52) and contradict in curb plate (21), the bottom side of curb plate (21) is equipped with fixed plate (212), fixed plate (212) are contradicted in the bottom of supporting baseplate (2), fixed rod (31) pass fixed plate (212), just it contradicts in fixed plate (212) to compress tightly piece (32).
8. A cast-in-place stair formwork as claimed in claim 1, wherein: the bottom of the supporting bottom plate (2) is provided with an anti-skid block (25), and the anti-skid block (25) is abutted to the supporting frame (1).
9. A construction method of a cast-in-place stair formwork of any one of claims 1 to 8, comprising the steps of:
s1, measuring and paying off, namely building a support frame (1) by using a steel pipe, forming an anti-skid block (25) by using triangular wood on the top of a support bottom plate (2), fixing the support bottom plate (2) on the support frame (1) and enabling the anti-skid block (25) to abut against the steel pipe of the support frame (1);
s2, setting mounting grooves (211) in the side plates (21) in a certain size, fixing the side plates (21) on two sides of the support bottom plate (2), and inserting the vertical plate (22) and the sealing plate (23) into the mounting grooves (211) of the side plates (21);
s3, holes are formed in the two side plates (21), the counter-pull screw (51) penetrates through the two side plates (21), and the abutting block (52) abuts against the side plates (21);
s4, installing the plug (332) into the sleeve (33) through a chute (333) in the sleeve, filling the sleeve (33) with expansion glue (331), connecting the two sleeves (33) through threads, and installing the fixing rod (31) at two ends of the sleeve (33) through threads;
s5, holes are formed in the closing plate (23), the supporting bottom plate (2) and the fixing plate (212), and the double rows of fixing pipes are fixed on two sides of the stair template through the fixing component (3);
s6, installing the two pull rods (41) in the control tube (42) in a threaded manner, adjusting the length of the control tube, and hinging the two pull rods (41) on the vertical plate (22) and the sealing plate (23);
s7, pouring concrete;
s8, removing the fixing component (3) and the counter-pulling component (5), removing the two side plates (21), rotating the control tube (42) to pull the two pull rods (41) to demould the sealing plate (23) and the vertical plate (22) from the poured stair, removing the supporting bottom plate (2), and troweling the position with the sleeve (33) on the stair surface by cement mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210368428.6A CN114592685A (en) | 2022-04-09 | 2022-04-09 | Cast-in-place stair template and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210368428.6A CN114592685A (en) | 2022-04-09 | 2022-04-09 | Cast-in-place stair template and construction method |
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| CN114592685A true CN114592685A (en) | 2022-06-07 |
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| CN202210368428.6A Pending CN114592685A (en) | 2022-04-09 | 2022-04-09 | Cast-in-place stair template and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095144A (en) * | 2022-06-22 | 2022-09-23 | 甘肃建投土木工程建设集团有限责任公司 | Stair steel form with adjustable specification |
-
2022
- 2022-04-09 CN CN202210368428.6A patent/CN114592685A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095144A (en) * | 2022-06-22 | 2022-09-23 | 甘肃建投土木工程建设集团有限责任公司 | Stair steel form with adjustable specification |
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