CN108035548A - The closed template construction method of cast-in-place concrete stair - Google Patents

The closed template construction method of cast-in-place concrete stair Download PDF

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Publication number
CN108035548A
CN108035548A CN201711189352.6A CN201711189352A CN108035548A CN 108035548 A CN108035548 A CN 108035548A CN 201711189352 A CN201711189352 A CN 201711189352A CN 108035548 A CN108035548 A CN 108035548A
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CN
China
Prior art keywords
template
stair
riser
tread
cast
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Pending
Application number
CN201711189352.6A
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Chinese (zh)
Inventor
刘琪
杨帆
雷建文
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Changzhou No1 Construction Group Co Ltd
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Changzhou No1 Construction Group Co Ltd
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Application filed by Changzhou No1 Construction Group Co Ltd filed Critical Changzhou No1 Construction Group Co Ltd
Priority to CN201711189352.6A priority Critical patent/CN108035548A/en
Publication of CN108035548A publication Critical patent/CN108035548A/en
Pending legal-status Critical Current

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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
    • 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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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The present invention provides a kind of closed template construction method of cast-in-place concrete stair, including step：1. line setting；2. bearing frame is set up；3. stair end template is installed；4. make side form, riser template and tread template；5. side form is installed；6. riser template and tread model sheetinstallat；7. dies plate tap system is installed；8. concreting；9. post-processed at plastic bushing and venthole.The construction method of the present invention can save a large amount of artificial, the saving duration；Concrete surface is bright and clean after form removal, and Cast-in-place concrete stair sectional dimension and impression quality can be controlled effectively；The horizontal tread that stair after shaping are each marked time and the small bending transition of vertical plane junction self-assembling formation one, can effectively avoid after form removal and during use caused by colliding or scratching stair step losing fangle, influence perception and when not paying attention to easily make one to trip in use, easily hit（Hang）The problems such as bad article.

Description

The closed template construction method of cast-in-place concrete stair
Technical field
The present invention relates to cast-in-place concrete stair construction method, and in particular to a kind of closed template of cast-in-place concrete stair Construction method.
Background technology
Cast-in-place concrete stair construction quality effectively cannot be controlled and ensured, influence the use function and entirety of building Perception, is the problem for perplexing building engineering construction all the time.Cast-in-place concrete stair construction common practice be：Complete Stair steel construction on the basis of, end template, side template and riser template are set（Mark time perpendicular template）, side template sets without ladder Put, riser template is directly anchored on side template, is formed stair formwork for placing concrete system, concrete is then poured, to each of stair The horizontal plane marked time（Tread）Using the levelling receipts light of artificial craft.Its there are the problem of be：First, by manually each being stepped on to stair The tread of step levelling receipts light by hand, it is difficult to the flatness of tread is effectively ensured, construction efficiency is relatively low, at the same upper and lower two treads with It is difficult to handle round and smooth between riser template, irregular lug, nib or groove is certainly existed after form removal, seriously affect stair uses work( Can and overall perception, particularly stair step horizontal plane and vertical plane junction lug, nib it is easy when not paying attention in use Make one to trip, easily hit（Hang）Bad article；Second, due in construction above and below stair personnel it is more, can only trample above and below riser template, The displacement of riser template deformation and riser template relative to side template is easily caused, influence pours the regular of concrete back stairs, and personnel Up and down only security risk is easily brought by trampling riser template or riser template and side template junction；Third, stair concrete placings After the maintenance stage due to personnel above and below, easily cause stair step truncation and lack angle, leave footprints.
The content of the invention
The purpose of the present invention is：For problems of the prior art, there is provided one kind can effectively ensure that cast-in-place coagulation The closed template construction method of Tulou ladder construction quality.
The technical scheme is that：The closed template construction method of cast-in-place concrete stair of the present invention, including it is following Step：
1. line setting：Using theodolite unwrapping wire, stair axis is ejected；
2. bearing frame is set up：Upright bar, the bar and vertically and horizontally horizon bar, composition are held of sweeping the floor are set according to the spacing of setting with seamless steel pipe Weight frame；
3. stair end template is installed：The plagioclase and width of stair are determined according to drawing requirement, and according to on-site actual situations to wood Template cut, process after, rely on bearing frame installation stair end template；
4. make side form, riser template and tread template：It is loose in the rectangle of 50mm thickness according to the stair size of drawing setting Snap the line on wood ribbon, toothing is cut by the side of pine batten along its length according to design size, each sawtooth Two sides are mutually perpendicular to and the length of a toothed edge is equal to the tread width of stair, and the length of another toothed edge is equal to stair Riser height, side form is made；Riser template basis is cut out according to design size using clad can wood plywood, in every piece of riser mould Wooden rib is strengthened in the outside fixed setting on plate basis, and the inside upper part on every piece of riser template basis fixes the long 10mm's of waist with nailing Isosceles right triangle batten, a right angle waist of isosceles right triangle batten are fixedly connected with the top on riser template basis, The upper end vertical connection on another right angle waist of isosceles right triangle batten and riser template basis is simultaneously concordant, and riser mould is made Plate；Tread template is cut out according to design size using clad can wood plywood, and in every piece of tread template apart from it along length side Through hole is opened up as venthole to the setpoint distance position on two tops；
5. side form is installed：According to stair layout design size, the snap the line on end template, end template is fixed on iron nail by side form On upper surface, wherein, if stair side is shear wall, it is fixedly installed on the corresponding end template outer upper end face of shear wall Side form；If stair both sides are empty, side form is being fixedly installed on upper surface inside and outside end template；
6. riser template and tread model sheetinstallat：Riser template and tread template are fixed one by one from the bottom to top with iron nail；Wherein, if Stair side is shear wall, then by shear wall formwork according to stair dimensioned toothing, by each riser template and tread mould The inner of plate is fixedly connected with shear wall formwork, and the other end is fixedly connected with side form；If stair both sides are empty, by each riser mould The inside and outside both ends of plate and tread template are fixedly connected with the side form being fixed inside and outside end template on upper surface；
7. dies plate tap system is installed：One piece of chock is respectively set in every piece of riser template and tread template joint, in each chock Upper parallel interval sets 2 groups, every group of 2 steel pipes, and in end template lower end relevant position, parallel interval sets 2 groups, every group of 2 steel Upper and lower 2 groups of steel pipes, are solidly connected tension by pipe using some groups of Screw arbor with nut at both-ends and cruciform fastening for falsework, each at each Screw arbor with nut at both-ends setting A plastic bushing is preset, each Screw arbor with nut at both-ends passes through when installing from corresponding plastic bushing；
8. concreting：By stair topmost and half space joint penetration concrete carries out concrete placings, in casting process, Fully vibrated discharge bubble with vibrating head；
9. post-processed at plastic bushing and venthole：The concrete emerged at venthole is evened out in time with perching knife after form removal, is moulded Expect that the upper and lower port of casing is blocked using cement mortar.
Further scheme is：Above-mentioned steps 2. in, upright bar using caliber Φ 48mm wall thickness 3.0mm seamless steel pipe according to Vertically and horizontally spacing is set no more than 90cm.
Further scheme is：Above-mentioned steps 4. in, above-mentioned venthole is opened up with electric hand drill, and the aperture of venthole is 10mm, venthole respectively open up 1 at each 200mm in two tops along its length in every piece of tread template apart from it.
Further scheme is：Above-mentioned steps 7. in, Screw arbor with nut at both-ends is along stair plagioclase direction from the bottom to top per spacing 700mm arranges together totally 2, and 2 Screw arbor with nut at both-ends of per pass are respectively apart from its affiliated tread template corresponding edge 300mm.
Further scheme is：Above-mentioned Screw arbor with nut at both-ends is preferably Φ 12mm Screw arbor with nut at both-ends, the internal diameter of above-mentioned plastic bushing with The outside diameter of above-mentioned Screw arbor with nut at both-ends is engaged.
Further scheme is：Above-mentioned steps 8. in, in concreting to stair step half capacity, stop pouring 40-50 minutes, continue to pour after the concrete initial set of lower part.
The present invention has positive effect：（1）The closed template construction method of cast-in-place concrete stair of the present invention, it is adopted With the riser template of end template, the side form for setting ladder, top inner side with isosceles right triangle batten, with venthole Tread template forms the closed template system of stair so that stair entirety concrete placings are convenient and efficient, are easy to be molded, due to setting Tread template, therefore without in the prior art to tread manually levelling receipts light, and can effectively overcome and manually to receive caused by light Various problems.（2）The closed template construction method of cast-in-place concrete stair of the present invention, it passes through in the top of riser template Side sets isosceles right triangle batten so that the horizontal tread that the stair after concrete placings shaping are each marked time joins with vertical plane Locate the small bending transition of self-assembling formation one, avoid forming lug, nib at this, on the one hand can effectively avoid after form removal and using process The middle stair step losing fangle caused by colliding or scratching, influences perception；On the other hand it can effectively overcome what the prior art was built The lug, nib of stair step horizontal plane and vertical plane junction easily makes one to trip when not paying attention to, easily hits in use（Hang）It is bad The problems such as article.（3）The present invention the closed template construction method of cast-in-place concrete stair, its by using steel pipe, chock and To connecting bolt fastening system, template system is fastened, can effectively ensure that stair template system integrally keeps the shape, so as to protect Demonstrate,prove the total quality of stair concrete placings.（4）The closed template construction method of cast-in-place concrete stair of the present invention, its template system With fastening system together so that personnel are easy for going up and down when stair are constructed, and can effectively avoid in the prior art because right above and below personnel Stair construction quality impact and personnel above and below unsafe problem.（5）The closed mould of cast-in-place concrete stair of the present invention Board construction method, it can save a large amount of artificial, the saving duration compared to construction method of the prior art；Concrete table after form removal Face is bright and clean, and Cast-in-place concrete stair sectional dimension and impression quality can be controlled effectively.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
（Embodiment 1）
See Fig. 1, the closed template construction method of cast-in-place concrete stair of the present embodiment, it is mainly implemented by following steps：
1. line setting：Using theodolite unwrapping wire, stair axis is ejected.
2. bearing frame is set up：It is no more than 90cm according to vertically and horizontally spacing with the seamless steel pipe of caliber Φ 48mm wall thickness 3.0mm Set upright bar, while set sweep the floor bar and vertically and horizontally horizon bar form bearing frame.
3. stair end template is installed：The plagioclase and width of stair are determined according to drawing requirement, and according to on-site actual situations After plank sheathing is cut, processing, bearing frame installation stair end template is relied on.
4. make side form, riser template and tread template：According to the stair size of drawing setting in the rectangular of 50mm thickness Snap the line on shape pine batten, toothing is cut by the side of pine batten along its length according to design size（After installation Zigzag forms stairstepping）, two sides of each sawtooth are mutually perpendicular to and the length of a toothed edge is equal to the tread of stair Width, the length of another toothed edge are equal to the riser height of stair, side form are made；Using clad can wood plywood according to design size Riser template basis is cut out, wooden rib is strengthened in the outside fixed setting on every piece of riser template basis, in every piece of riser template base The inside upper part of plinth fixes the isosceles right triangle batten of the long 10mm of waist, a right angle of isosceles right triangle batten with nailing Waist is fixedly connected with the top on riser template basis, another right angle waist and the riser template basis of isosceles right triangle batten Upper end vertical connection is simultaneously concordant, so that riser template be made；Tread template is cut out according to design size using clad can wood plywood, And the through hole that aperture is 10mm is opened up with electric hand drill at each 200mm in two tops along its length in every piece of tread template apart from it As venthole.
In this step, riser template and tread template are fixed when the manufactured side form with hierarchic structure is easily installed；Kick Face die plate and tread template use clad can wood plywood, its two sides is smooth so that the concrete poured is bright and clean smooth in form removal rear surface； The inside upper part on riser template basis is by setting isosceles right triangle batten so that the stair after concrete placings shaping are each stepped on The horizontal tread of step and the small bending transition of vertical plane junction self-assembling formation one, avoid forming lug, nib at this, on the one hand may be used Effectively avoid after form removal and during use caused by colliding or scratching stair step losing fangle, influence perception；On the other hand The stair step horizontal plane and the lug, nib of vertical plane junction that prior art construction can effectively be overcome are not being noted in use Yi Shiyi makes one to trip, easily hits（Hang）Wooden rib, Neng Gouzeng are strengthened in the problems such as bad article, the outside fixed setting on riser template basis Add support strength of the riser template when pouring concrete；Venthole is set to carry easy to additional air during concrete placings in tread template Go out, improve concrete placings quality.
5. side form is installed：According to stair layout design size, the snap the line on end template, bed die is fixed on iron nail by side form On the upper surface of plate, wherein, it is fixed on the corresponding end template outer upper end face of shear wall if stair side is shear wall Side form is set；If stair both sides are empty, side form is being fixedly installed on upper surface inside and outside end template.
6. riser template and tread model sheetinstallat：Riser template and tread template are fixed one by one from the bottom to top with iron nail；Its In, if stair side is shear wall, by shear wall formwork according to stair dimensioned toothing, by each riser template and step on The inner of face die plate is fixedly connected with shear wall formwork, and the other end is fixedly connected with side form；If stair both sides are empty, will respectively kick The inside and outside both ends of face die plate and tread template are fixedly connected with the side form being fixed inside and outside end template on upper surface.
7. dies plate tap system is installed：One piece of chock is respectively set in every piece of riser template and tread template joint, each Parallel interval sets 2 groups, every group of 2 steel pipes on chock, and in end template lower end relevant position, parallel interval sets 2 groups, every group 2 Upper and lower 2 groups of steel pipes, are solidly connected tension by steel pipe using some groups of Screw arbor with nut at both-ends and cruciform fastening for falsework, wherein, Screw arbor with nut at both-ends along Stair plagioclase direction arranges together totally 2 per spacing 700mm from the bottom to top, and 2 Screw arbor with nut at both-ends of per pass are stepped on apart from belonging to it respectively Face die plate corresponding edge 300mm；Each at each Screw arbor with nut at both-ends setting to preset a plastic bushing, the upper end of plastic bushing is not low In the lower face of tread template；The lower end of plastic bushing is not higher than the upper surface of end template；Slave phase during each Screw arbor with nut at both-ends installation The plastic bushing answered passes through.In the present embodiment, Screw arbor with nut at both-ends preferably uses Φ 12mm Screw arbor with nut at both-ends, default plastic bushing it is interior Footpath is engaged with the outside diameter of Screw arbor with nut at both-ends.
8. concreting：Concrete placings topmost are carried out with half space joint penetration concrete by stair, were poured Cheng Zhong, fully vibrated discharge bubble with vibrating head.Preferably, be when pouring overcome concrete gravity and workability to stair Step plate may cause " quick-fried mould " problem, in concreting to stair step half capacity（Absolute altitude is poured using shear wall As reference）When, stopping pour 40-50 minutes, after lower part concrete initial set to a certain degree afterwards continue to pour.
9. post-processed at plastic bushing and venthole：The spade that will be emerged in time at venthole with perching knife after form removal Flat, the upper and lower port of plastic bushing is blocked using cement mortar.
Above example is the explanation to the embodiment of the present invention, rather than limitation of the present invention, related technology The technical staff in field without departing from the spirit and scope of the present invention, can also make various conversion and change and obtain To corresponding equivalent technical solution, therefore all equivalent technical solutions should be included into the patent protection model of the present invention Enclose.

Claims (6)

  1. A kind of 1. closed template construction method of cast-in-place concrete stair, it is characterised in that：Comprise the following steps：
    1. line setting：Using theodolite unwrapping wire, stair axis is ejected；
    2. bearing frame is set up：Upright bar, the bar and vertically and horizontally horizon bar, composition are held of sweeping the floor are set according to the spacing of setting with seamless steel pipe Weight frame；
    3. stair end template is installed：The plagioclase and width of stair are determined according to drawing requirement, and according to on-site actual situations to wood Template cut, process after, rely on bearing frame installation stair end template；
    4. make side form, riser template and tread template：It is loose in the rectangle of 50mm thickness according to the stair size of drawing setting Snap the line on wood ribbon, toothing is cut by the side of pine batten along its length according to design size, each sawtooth Two sides are mutually perpendicular to and the length of a toothed edge is equal to the tread width of stair, and the length of another toothed edge is equal to stair Riser height, side form is made；Riser template basis is cut out according to design size using clad can wood plywood, in every piece of riser mould Wooden rib is strengthened in the outside fixed setting on plate basis, and the inside upper part on every piece of riser template basis fixes the long 10mm's of waist with nailing Isosceles right triangle batten, a right angle waist of isosceles right triangle batten are fixedly connected with the top on riser template basis, The upper end vertical connection on another right angle waist of isosceles right triangle batten and riser template basis is simultaneously concordant, and riser mould is made Plate；Tread template is cut out according to design size using clad can wood plywood, and in every piece of tread template apart from it along length side Through hole is opened up as venthole to the setpoint distance position on two tops；
    5. side form is installed：According to stair layout design size, the snap the line on end template, end template is fixed on iron nail by side form On upper surface, wherein, if stair side is shear wall, it is fixedly installed on the corresponding end template outer upper end face of shear wall Side form；If stair both sides are empty, side form is being fixedly installed on upper surface inside and outside end template；
    6. riser template and tread model sheetinstallat：Riser template and tread template are fixed one by one from the bottom to top with iron nail；Wherein, if Stair side is shear wall, then by shear wall formwork according to stair dimensioned toothing, by each riser template and tread mould The inner of plate is fixedly connected with shear wall formwork, and the other end is fixedly connected with side form；If stair both sides are empty, by each riser mould The inside and outside both ends of plate and tread template are fixedly connected with the side form being fixed inside and outside end template on upper surface；
    7. dies plate tap system is installed：One piece of chock is respectively set in every piece of riser template and tread template joint, in each chock Upper parallel interval sets 2 groups, every group of 2 steel pipes, and in end template lower end relevant position, parallel interval sets 2 groups, every group of 2 steel Upper and lower 2 groups of steel pipes, are solidly connected tension by pipe using some groups of Screw arbor with nut at both-ends and cruciform fastening for falsework, each at each Screw arbor with nut at both-ends setting A plastic bushing is preset, each Screw arbor with nut at both-ends passes through when installing from corresponding plastic bushing；
    8. concreting：By stair topmost and half space joint penetration concrete carries out concrete placings, in casting process, Fully vibrated discharge bubble with vibrating head；
    9. post-processed at plastic bushing and venthole：The concrete emerged at venthole is evened out in time with perching knife after form removal, is moulded Expect that the upper and lower port of casing is blocked using cement mortar.
  2. 2. the closed template construction method of cast-in-place concrete stair according to claim 1, it is characterised in that：The step 2. in, upright bar is set using the seamless steel pipe of caliber Φ 48mm wall thickness 3.0mm according to vertically and horizontally spacing no more than 90cm.
  3. 3. the closed template construction method of cast-in-place concrete stair according to claim 1, it is characterised in that：The step 4. in, the venthole is opened up with electric hand drill, and the aperture of venthole is 10mm, and venthole is in every piece of tread template apart from its edge 1 is respectively opened up at each 200mm in two top of length direction.
  4. 4. according to any closed template construction method of cast-in-place concrete stair of claims 1 to 3, it is characterised in that： The step 7. in, Screw arbor with nut at both-ends arrangement totally 2 together, per pass 2 per spacing 700mm from the bottom to top along stair plagioclase direction Screw arbor with nut at both-ends is respectively apart from its affiliated tread template corresponding edge 300mm.
  5. 5. the closed template construction method of cast-in-place concrete stair according to claim 4, it is characterised in that：Described pair of drawing Screw rod is preferably Φ 12mm Screw arbor with nut at both-ends, and the internal diameter of the plastic bushing is engaged with the outside diameter of the Screw arbor with nut at both-ends.
  6. 6. according to any closed template construction method of cast-in-place concrete stair of claims 1 to 3, it is characterised in that： The step 8. in, in concreting to stair step half capacity, stopping pour 40-50 minutes, treat lower part concrete Continue to pour after initial set.
CN201711189352.6A 2017-11-24 2017-11-24 The closed template construction method of cast-in-place concrete stair Pending CN108035548A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109853947A (en) * 2018-12-05 2019-06-07 五冶集团上海有限公司 A kind of stair template installation method of band someone row pedal
CN112112427A (en) * 2020-10-09 2020-12-22 福州经济技术开发区星络网电子科技有限公司 Cement pouring equipment for stairs
CN114922365A (en) * 2022-05-06 2022-08-19 中建科工集团有限公司 Stair construction method

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Publication number Priority date Publication date Assignee Title
CN203475828U (en) * 2013-09-18 2014-03-12 五矿二十三冶建设集团有限公司 Totally closed stair formwork for cast-in-situ stair construction
CN106088588A (en) * 2016-08-05 2016-11-09 中国建筑第七工程局有限公司 A kind of cast-in-situ stair is closed formwork erecting structure and pours in down a chimney the construction of concrete
CN205713092U (en) * 2016-05-05 2016-11-23 广西建工集团第二安装建设有限公司 A kind of Rectangular Concrete wall column circle external angle formwork device
CN205894681U (en) * 2016-08-16 2017-01-18 江西建工第四建筑有限责任公司 Closed staircase template
CN107100366A (en) * 2017-05-09 2017-08-29 中冶天工集团天津有限公司 A kind of construction method for skyscraper reinforced concrete stairs formwork

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203475828U (en) * 2013-09-18 2014-03-12 五矿二十三冶建设集团有限公司 Totally closed stair formwork for cast-in-situ stair construction
CN205713092U (en) * 2016-05-05 2016-11-23 广西建工集团第二安装建设有限公司 A kind of Rectangular Concrete wall column circle external angle formwork device
CN106088588A (en) * 2016-08-05 2016-11-09 中国建筑第七工程局有限公司 A kind of cast-in-situ stair is closed formwork erecting structure and pours in down a chimney the construction of concrete
CN205894681U (en) * 2016-08-16 2017-01-18 江西建工第四建筑有限责任公司 Closed staircase template
CN107100366A (en) * 2017-05-09 2017-08-29 中冶天工集团天津有限公司 A kind of construction method for skyscraper reinforced concrete stairs formwork

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109853947A (en) * 2018-12-05 2019-06-07 五冶集团上海有限公司 A kind of stair template installation method of band someone row pedal
CN112112427A (en) * 2020-10-09 2020-12-22 福州经济技术开发区星络网电子科技有限公司 Cement pouring equipment for stairs
CN114922365A (en) * 2022-05-06 2022-08-19 中建科工集团有限公司 Stair construction method

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Application publication date: 20180515