CN102864928A - Construction method for spiral stairs with large-span space - Google Patents
Construction method for spiral stairs with large-span space Download PDFInfo
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- CN102864928A CN102864928A CN2012103823340A CN201210382334A CN102864928A CN 102864928 A CN102864928 A CN 102864928A CN 2012103823340 A CN2012103823340 A CN 2012103823340A CN 201210382334 A CN201210382334 A CN 201210382334A CN 102864928 A CN102864928 A CN 102864928A
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 60
- 239000010959 steel Substances 0.000 claims description 60
- 230000003014 reinforcing effect Effects 0.000 claims description 46
- 239000002023 wood Substances 0.000 claims description 21
- 238000013461 design Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000009416 shuttering Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 235000011194 food seasoning agent Nutrition 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000010438 granite Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The invention discloses a construction method for spiral stairs with large-span space. The construction method comprises construction of a spiral stair template support system, spiral stair rebar machining and binding and concrete casting molding. According to the construction method, the construction is convenient and rapid, and the construction quality is good.
Description
Technical field
The present invention relates to a kind of large span space spiral stairs job practices.
Background technology
Spiral stairs is the decorative constructure in the public building, and its structure is unique, complex structure, and difficulty of construction is large.The shuttering supporting moulding of large span space spiral stairs and the setting-out of space reinforcing bar are processed, and are different from the construction technology process of ordinary reinforced concrete structure, and the practice of its uniqueness is arranged, and existing job practices is difficult to realize convenient, high-quality requirement.
Summary of the invention
The object of the present invention is to provide a kind of easy construction, the measured large span space spiral stairs of matter job practices.
Technical solution of the present invention is:
A kind of large span space spiral stairs job practices comprises the construction of spiral stairs form bracing system, spiral stairs reinforcing bar processing colligation construction, concreting molding construction, and the construction of spiral stairs form bracing system comprises the following steps:
(1) measure setting-out:
Use AOTO-CAD Simulation lofting technique computes and go out the spiral stairs plane control point coordinates of marking time, emit first x, y reference axis, emit again inside and outside semicircle full-page proof, at last emit each x that marks time, y coordinate point at floor, or adopt the angle of marking time to divide to emit at circular arc and mark time a little, the plane that line namely the becomes spiral stairs figure that marks time forms the design plane arrangement diagram of spiral stairs;
(2) the formwork absolute altitude calculates at the bottom of the stair:
According to the vertical control point that spiral stairs is marked time, be converted into the vertical distance absolute altitude of stair base plate.Width b=π d * θ that first calculating is marked time/360, d is the diameter of circular arc in the formula, θ is the plane included angle of marking time; By similar right-angled triangle, calculate the vertical distance thickness h of spiral stairs base plate again, get h=460 * c/b, in the formula
A is riser height; Deduct the vertical distance h of base plate from the absolute altitude of marking time, namely get the floor level of spiral stairs, deduct again the thickness of template and the lumps of wood from the floor level of spiral stairs, must go out the upper absolute altitude of horizontal steel tube;
(3) vertical vertical steel pipe is taken the arc support body:
Select the steel pipe of appropriate length according to the requirement of absolute altitude at the bottom of the stair, the vertical steel pipe arrangement position is that per two tread runs arrange a row, and every row founds four steel pipes, and outer vertical rod arranges after the middle vertical rod apart from stair limit 200mm; Establish the bar of sweeping the floor at the bottom of the vertical rod, the high in length and breadth direction girt of establishing of middle every 1.3m is set up the camber support body;
(4) level measurement, set up stressed horizontal steel pipe:
Measure " 50 " absolute altitude on the floor in levelling in the vertical rod, and do the triangle mark with red paint; According to the upper absolute altitude of the horizontal steel tube that calculates, measure the position of horizontal steel tube from " 50 " line, set up stressed horizontal steel pipe support body with steel pipe and the fastener of Φ 48 * 3.0;
(5) place the short lumps of wood, lay wooden form:
Horizontal steel tube in different level is placed the short lumps of wood, and spacing 200mm with the thick wood glue template of filming of 18mm, is cut into suitable trapezoid block and spreads nail on the lumps of wood, and template and the lumps of wood are close to, and seam is tight, and template surface forms a complete bright and clean curved body;
(6) cheek board moulding:
On floor, put outside the semicircle camber line, hang vertical line with vertical, the semicircle acnode is guided on the template, form circular arc line, make the template limit be sawn into circular arc, be convenient to a side form;
(7) the arc support body is shored in the middle of establishing, a side form:
In the middle of every horizontal steel tube, set up two steel pipes and shore, and establish two fastener resisting slippings; Set up horizontal steel tube and be linked to be integral body, a spiral stairs Side shuttering forms the spiral stairs form bracing system;
(8) install the template of marking time
With the high template of marking time of the thick formwork erection 150mm of 50mm, with the vertical drawknot of the lumps of wood and support top, reinforce simultaneously spiral stairs template support body, set up the bearing diagonal steel pipe at inside and outside circular arc periphery, strengthen the resistance to overturning of spiral stairs;
Spiral stairs reinforcing bar processing colligation construction comprises the following steps:
(1) reinforcing bar setting-out
Spiral stairs apperance and reinforcing bar designing requirement according to a mold forming, with Φ 16 reinforcing bar exemplars, by manually by hand spanner on template with the brake forming of reinforcing bar exemplar, and emit the full-page proof of the every reinforcing bar in space according to the steel bar stress spacing, according to designing requirement, the step plate steel bar stress divides up and down two joints, and they are accurately emitted during setting-out and anchor into reinforcing bar length and shape in floor frame beam and the half space simultaneously as the steel bar stress of interval platform;
(2) reinforcement fabrication
According to the reinforcing bar exemplar, the reinforcing bar with Φ 25 on angle-bender manufactures the exemplar shape, and their shape of different spacings and position and length are all different, needs numbering to place respectively;
(3) reinforcing bar binding
Spiral stairs master muscle is each 12 Φ 25 up and down, stirrup Φ 10@150, and the beam side is established 6 Φ, 25 antitorque waist muscle, the steel bar stress of step plate stretches in the half space up and down, as the steel bar stress of platform, and enter anchoring and overlap joint in another step plate, the reinforcing bar of lap-joint is minimum ties up three buttons; Carry out by drawing reinforcing bar binding, must satisfy reinforcing bar and anchor in the floor frame beam and the reinforcing bar length requirement in the half space, and the requirement of hoop reinforcement; The thick granite block of stirrup underlay 15 at the bottom of plate, spacing is 1000mm;
The concreting molding construction:
The spiral stairs strength grade of concrete is C30, adopts pumping of concrete, slump 160mm, and concreting from bottom to top, vibration compacting, the surperficial concrete of marking time is floating; Concrete covers water seasoning 14 days; Protect test specimen according to real curing, when concrete strength reaches 100% of design strength, stripping.
Easy construction of the present invention, quick, construction quality is good.
The invention will be further described below in conjunction with embodiment.
The specific embodiment
A kind of large span space spiral stairs job practices comprises the construction of spiral stairs form bracing system, spiral stairs reinforcing bar processing colligation construction, concreting molding construction, and the construction of spiral stairs form bracing system comprises the following steps:
(1) measure setting-out:
Use AOTO-CAD Simulation lofting technique computes and go out the spiral stairs plane control point coordinates of marking time, emit first x, y reference axis, emit again inside and outside semicircle full-page proof, at last emit each x that marks time, y coordinate point at floor, or adopt the angle of marking time to divide to emit at circular arc and mark time a little, the plane that line namely the becomes spiral stairs figure that marks time forms the design plane arrangement diagram of spiral stairs;
Table 1 spiral stairs mark time plane control point coordinates and elevation (average angle of marking time be 4 ° 36 ')
(2) the formwork absolute altitude calculates at the bottom of the stair:
According to the vertical control point that spiral stairs is marked time, be converted into the vertical distance absolute altitude of stair base plate.Width b=π d * θ that first calculating is marked time/360, d is the diameter of circular arc in the formula, θ is the plane included angle of marking time; By similar right-angled triangle, calculate the vertical distance thickness h of spiral stairs base plate again, get h=460 * c/b, in the formula
A is riser height; Deduct the vertical distance h of base plate from the absolute altitude of marking time, namely get the floor level of spiral stairs, deduct again the thickness of template and the lumps of wood from the floor level of spiral stairs, must go out the upper absolute altitude of horizontal steel tube;
(3) vertical vertical steel pipe is taken the arc support body:
Select the steel pipe of appropriate length according to the requirement of absolute altitude at the bottom of the stair, the vertical steel pipe arrangement position is that per two tread runs arrange a row, and every row founds four steel pipes, and outer vertical rod arranges after the middle vertical rod apart from stair limit 200mm; Establish the bar of sweeping the floor at the bottom of the vertical rod, the high in length and breadth direction girt of establishing of middle every 1.3m is set up the camber support body;
(4) level measurement, set up stressed horizontal steel pipe:
Measure " 50 " absolute altitude on the floor in levelling in the vertical rod, and do the triangle mark with red paint; According to the upper absolute altitude of the horizontal steel tube that calculates, measure the position of horizontal steel tube from " 50 " line, set up stressed horizontal steel pipe support body with steel pipe and the fastener of Φ 48 * 3.0;
(5) place the short lumps of wood, lay wooden form:
Horizontal steel tube in different level is placed the short lumps of wood, and spacing 200mm with the thick wood glue template of filming of 18mm, is cut into suitable trapezoid block and spreads nail on the lumps of wood, and template and the lumps of wood are close to, and seam is tight, and template surface forms a complete bright and clean curved body;
(6) cheek board moulding:
On floor, put outside the semicircle camber line, hang vertical line with vertical, the semicircle acnode is guided on the template, form circular arc line, make the template limit be sawn into circular arc, be convenient to a side form;
(7) the arc support body is shored in the middle of establishing, a side form:
In the middle of every horizontal steel tube, set up two steel pipes and shore, and establish two fastener resisting slippings; Set up horizontal steel tube and be linked to be integral body, a spiral stairs Side shuttering forms the spiral stairs form bracing system;
(8) install the template of marking time
With the high template of marking time of the thick formwork erection 150mm of 50mm, with the vertical drawknot of the lumps of wood and support top, reinforce simultaneously spiral stairs template support body, set up the bearing diagonal steel pipe at inside and outside circular arc periphery, strengthen the resistance to overturning of spiral stairs;
Spiral stairs reinforcing bar processing colligation construction comprises the following steps:
(1) reinforcing bar setting-out
Spiral stairs apperance and reinforcing bar designing requirement according to a mold forming, with Φ 16 reinforcing bar exemplars, by manually by hand spanner on template with the brake forming of reinforcing bar exemplar, and emit the full-page proof of the every reinforcing bar in space according to the steel bar stress spacing, according to designing requirement, the step plate steel bar stress divides up and down two joints, and they are accurately emitted during setting-out and anchor into reinforcing bar length and shape in floor frame beam and the half space simultaneously as the steel bar stress of interval platform;
(2) reinforcement fabrication
According to the reinforcing bar exemplar, the reinforcing bar with Φ 25 on angle-bender manufactures the exemplar shape, and their shape of different spacings and position and length are all different, needs numbering to place respectively;
(3) reinforcing bar binding
Spiral stairs master muscle is each 12 Φ 25 up and down, stirrup Φ 10@150, and the beam side is established 6 Φ, 25 antitorque waist muscle, the steel bar stress of step plate stretches in the half space up and down, as the steel bar stress of platform, and enter anchoring and overlap joint in another step plate, the reinforcing bar of lap-joint is minimum ties up three buttons; Carry out by drawing reinforcing bar binding, must satisfy reinforcing bar and anchor in the floor frame beam and the reinforcing bar length requirement in the half space, and the requirement of hoop reinforcement; The thick granite block of stirrup underlay 15 at the bottom of plate, spacing is 1000mm;
The concreting molding construction:
The spiral stairs strength grade of concrete is C30, adopts pumping of concrete, slump 160mm, and concreting from bottom to top, vibration compacting, the surperficial concrete of marking time is floating; Concrete covers water seasoning 14 days; Protect test specimen according to real curing, when concrete strength reaches 100% of design strength, stripping.
Claims (1)
1. a large span space spiral stairs job practices comprises the construction of spiral stairs form bracing system, spiral stairs reinforcing bar processing colligation construction, concreting molding construction, it is characterized in that:
The construction of spiral stairs form bracing system comprises the following steps:
(1) measure setting-out:
Use AOTO-CAD Simulation lofting technique computes and go out the spiral stairs plane control point coordinates of marking time, emit first x, y reference axis, emit again inside and outside semicircle full-page proof, at last emit each x that marks time, y coordinate point at floor, or adopt the angle of marking time to divide to emit at circular arc and mark time a little, the plane that line namely the becomes spiral stairs figure that marks time forms the design plane arrangement diagram of spiral stairs;
(2) the formwork absolute altitude calculates at the bottom of the stair:
According to the vertical control point that spiral stairs is marked time, be converted into the vertical distance absolute altitude of stair base plate.Width b=π d * θ that first calculating is marked time/360, d is the diameter of circular arc in the formula, θ is the plane included angle of marking time; By similar right-angled triangle, calculate the vertical distance thickness h of spiral stairs base plate again, get h=460 * c/b, in the formula
A is riser height; Deduct the vertical distance h of base plate from the absolute altitude of marking time, namely get the floor level of spiral stairs, deduct again the thickness of template and the lumps of wood from the floor level of spiral stairs, must go out the upper absolute altitude of horizontal steel tube;
(3) vertical vertical steel pipe is taken the arc support body:
Select the steel pipe of appropriate length according to the requirement of absolute altitude at the bottom of the stair, the vertical steel pipe arrangement position is that per two tread runs arrange a row, and every row founds four steel pipes, and outer vertical rod arranges after the middle vertical rod apart from stair limit 200mm; Establish the bar of sweeping the floor at the bottom of the vertical rod, the high in length and breadth direction girt of establishing of middle every 1.3m is set up the camber support body;
(4) level measurement, set up stressed horizontal steel pipe:
Measure " 50 " absolute altitude on the floor in levelling in the vertical rod, and do the triangle mark with red paint; According to the upper absolute altitude of the horizontal steel tube that calculates, measure the position of horizontal steel tube from " 50 " line, set up stressed horizontal steel pipe support body with steel pipe and the fastener of Φ 48 * 3.0;
(5) place the short lumps of wood, lay wooden form:
Horizontal steel tube in different level is placed the short lumps of wood, and spacing 200mm with the thick wood glue template of filming of 18mm, is cut into suitable trapezoid block and spreads nail on the lumps of wood, and template and the lumps of wood are close to, and seam is tight, and template surface forms a complete bright and clean curved body;
(6) cheek board moulding:
On floor, put outside the semicircle camber line, hang vertical line with vertical, the semicircle acnode is guided on the template, form circular arc line, make the template limit be sawn into circular arc, be convenient to a side form;
(7) the arc support body is shored in the middle of establishing, a side form:
In the middle of every horizontal steel tube, set up two steel pipes and shore, and establish two fastener resisting slippings; Set up horizontal steel tube and be linked to be integral body, a spiral stairs Side shuttering forms the spiral stairs form bracing system;
(8) install the template of marking time
With the high template of marking time of the thick formwork erection 150mm of 50mm, with the vertical drawknot of the lumps of wood and support top, reinforce simultaneously spiral stairs template support body, set up the bearing diagonal steel pipe at inside and outside circular arc periphery, strengthen the resistance to overturning of spiral stairs;
Spiral stairs reinforcing bar processing colligation construction comprises the following steps:
(1) reinforcing bar setting-out
Spiral stairs apperance and reinforcing bar designing requirement according to a mold forming, with Φ 16 reinforcing bar exemplars, by manually by hand spanner on template with the brake forming of reinforcing bar exemplar, and emit the full-page proof of the every reinforcing bar in space according to the steel bar stress spacing, according to designing requirement, the step plate steel bar stress divides up and down two joints, and they are accurately emitted during setting-out and anchor into reinforcing bar length and shape in floor frame beam and the half space simultaneously as the steel bar stress of interval platform;
(2) reinforcement fabrication
According to the reinforcing bar exemplar, the reinforcing bar with Φ 25 on angle-bender manufactures the exemplar shape, and their shape of different spacings and position and length are all different, needs numbering to place respectively;
(3) reinforcing bar binding
Spiral stairs master muscle is each 12 Φ 25 up and down, stirrup Φ 10@150, and the beam side is established 6 Φ, 25 antitorque waist muscle, the steel bar stress of step plate stretches in the half space up and down, as the steel bar stress of platform, and enter anchoring and overlap joint in another step plate, the reinforcing bar of lap-joint is minimum ties up three buttons; Carry out by drawing reinforcing bar binding, must satisfy reinforcing bar and anchor in the floor frame beam and the reinforcing bar length requirement in the half space, and the requirement of hoop reinforcement; The thick granite block of stirrup underlay 15 at the bottom of plate, spacing is 1000mm;
The concreting molding construction:
The spiral stairs strength grade of concrete is C30, adopts pumping of concrete, slump 160mm, and concreting from bottom to top, vibration compacting, the surperficial concrete of marking time is floating; Concrete covers water seasoning 14 days; Protect test specimen according to real curing, when concrete strength reaches 100% of design strength, stripping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103823340A CN102864928B (en) | 2012-10-10 | 2012-10-10 | Construction method for spiral stairs with large-spspace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103823340A CN102864928B (en) | 2012-10-10 | 2012-10-10 | Construction method for spiral stairs with large-spspace |
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| CN102864928A true CN102864928A (en) | 2013-01-09 |
| CN102864928B CN102864928B (en) | 2013-11-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947866A (en) * | 2015-07-13 | 2015-09-30 | 中铁建工集团有限公司 | Open type spiral staircase constructed by casting fair-faced concrete folded plates in situ and construction method of spiral staircase |
| CN106760275A (en) * | 2016-11-24 | 2017-05-31 | 中冶建工集团有限公司 | The construction method of stainless steel spiral stairses is installed using sectional shelf-unit |
| CN107299767A (en) * | 2017-06-23 | 2017-10-27 | 中国冶集团有限公司 | It is a kind of to rotate absolute altitude setting means and establishing method that steel ladder makes applied to box-type section helical-blade sheet |
| CN108179877A (en) * | 2017-12-29 | 2018-06-19 | 青建集团股份公司 | Mitigate the cast-in-place torsion plate circular arc track construction method of helical curve multilayer |
| CN110203339A (en) * | 2018-09-17 | 2019-09-06 | 中国船舶工业集团公司第七0八研究所 | A kind of design method of inclined ladder for ship |
| CN110258987A (en) * | 2019-06-11 | 2019-09-20 | 湖北长安建设集团股份有限公司 | A kind of cast-in-place overhanging type spiral stairs and its construction |
| CN114278026A (en) * | 2022-01-11 | 2022-04-05 | 华神建设集团有限公司 | Construction method of large-span cast-in-situ special-shaped stair |
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| CN1083889A (en) * | 1992-09-11 | 1994-03-16 | 株式会社横森制作所 | The construction method of stair and staircase and the construction method of stair and stair parts |
| CN2547804Y (en) * | 2002-03-02 | 2003-04-30 | 东营市克瑞达楼梯有限责任公司 | Combined spiral stairway |
| EP0937839B1 (en) * | 1998-02-24 | 2004-08-04 | L'Elicoidale S.n.c. di Zandonà R. e Bicego D. | Monolithic step made of reinforced concrete for helical staircases, and helical staircase provided therewith |
| CN101774109A (en) * | 2010-01-19 | 2010-07-14 | 江苏沪宁钢机股份有限公司 | Method for manufacturing double-spiral steel staircase without middle standing pillar |
| CN202347754U (en) * | 2011-12-09 | 2012-07-25 | 中煤西安设计工程有限责任公司 | Supporting screw type ladder compartment |
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2012
- 2012-10-10 CN CN2012103823340A patent/CN102864928B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083889A (en) * | 1992-09-11 | 1994-03-16 | 株式会社横森制作所 | The construction method of stair and staircase and the construction method of stair and stair parts |
| EP0937839B1 (en) * | 1998-02-24 | 2004-08-04 | L'Elicoidale S.n.c. di Zandonà R. e Bicego D. | Monolithic step made of reinforced concrete for helical staircases, and helical staircase provided therewith |
| CN2547804Y (en) * | 2002-03-02 | 2003-04-30 | 东营市克瑞达楼梯有限责任公司 | Combined spiral stairway |
| CN101774109A (en) * | 2010-01-19 | 2010-07-14 | 江苏沪宁钢机股份有限公司 | Method for manufacturing double-spiral steel staircase without middle standing pillar |
| CN202347754U (en) * | 2011-12-09 | 2012-07-25 | 中煤西安设计工程有限责任公司 | Supporting screw type ladder compartment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947866A (en) * | 2015-07-13 | 2015-09-30 | 中铁建工集团有限公司 | Open type spiral staircase constructed by casting fair-faced concrete folded plates in situ and construction method of spiral staircase |
| CN106760275A (en) * | 2016-11-24 | 2017-05-31 | 中冶建工集团有限公司 | The construction method of stainless steel spiral stairses is installed using sectional shelf-unit |
| CN107299767A (en) * | 2017-06-23 | 2017-10-27 | 中国冶集团有限公司 | It is a kind of to rotate absolute altitude setting means and establishing method that steel ladder makes applied to box-type section helical-blade sheet |
| CN108179877A (en) * | 2017-12-29 | 2018-06-19 | 青建集团股份公司 | Mitigate the cast-in-place torsion plate circular arc track construction method of helical curve multilayer |
| CN110203339A (en) * | 2018-09-17 | 2019-09-06 | 中国船舶工业集团公司第七0八研究所 | A kind of design method of inclined ladder for ship |
| CN110258987A (en) * | 2019-06-11 | 2019-09-20 | 湖北长安建设集团股份有限公司 | A kind of cast-in-place overhanging type spiral stairs and its construction |
| CN110258987B (en) * | 2019-06-11 | 2023-09-01 | 湖北长安建设集团股份有限公司 | Cast-in-situ overhanging type rotary stair and construction method thereof |
| CN114278026A (en) * | 2022-01-11 | 2022-04-05 | 华神建设集团有限公司 | Construction method of large-span cast-in-situ special-shaped stair |
| CN114278026B (en) * | 2022-01-11 | 2024-04-26 | 华神建设集团有限公司 | Construction method of large-span cast-in-situ special-shaped stairway |
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| CN102864928B (en) | 2013-11-27 |
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