CN106121145B - A kind of split blade type assembly stair and preparation method thereof and assembly method - Google Patents

A kind of split blade type assembly stair and preparation method thereof and assembly method Download PDF

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Publication number
CN106121145B
CN106121145B CN201610557788.5A CN201610557788A CN106121145B CN 106121145 B CN106121145 B CN 106121145B CN 201610557788 A CN201610557788 A CN 201610557788A CN 106121145 B CN106121145 B CN 106121145B
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CN
China
Prior art keywords
waist slab
nail
blade type
pin hole
stair
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CN201610557788.5A
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Chinese (zh)
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CN106121145A (en
Inventor
张军
陈耀钢
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南通大学
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Priority to CN201610557788.5A priority Critical patent/CN106121145B/en
Publication of CN106121145A publication Critical patent/CN106121145A/en
Application granted granted Critical
Publication of CN106121145B publication Critical patent/CN106121145B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/022Stairways; Layouts thereof characterised by the supporting structure

Abstract

The invention discloses a kind of split blade type assembly stair and preparation method thereof and assembly methods, including interior plate and outer panel, interior plate and outer panel are identical waist slab, and bench board ends are equipped with the shearing resistance pin connection that bench board support, the interior plate and outer panel are arranged by span centre.A kind of split blade type assembly stair of the invention reduce the self weight of monolithic waist slab, the fast hoisting of prefabricated waist slab can be completed in the case where mainstream tower crane model in not upgrading current In High-Rise Building Construction, the construction links such as live formwork, assembling reinforcement, concreting and the maintenance in traditional cast in place process are eliminated, the duration has been saved;Due to using waist slab fragment prefabricating technique, the early period that can meet more Long span single flight waist slab is prefabricated, later period installation, wider than the scope of application of integrated precast stair.The present invention can make waist slab concreting and appearance Forming Quality be guaranteed, while decrease labour's input amount and waste of material, reduce construction cost.

Description

A kind of split blade type assembly stair and preparation method thereof and assembly method
Technical field
The present invention relates to a kind of split blade types to assemble stair, and in particular to a kind of split blade type assembly stair and preparation method thereof with Assembly method.
Background technique
The waist slab of traditional stair pours for site operation, and concrete structure construction process is complicated, long in time limit, cost It is high.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of split blade type that volume facilityization is prefabricated dresses With stair.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of split blade type assembly stair, including interior plate and outer panel, the interior plate and outer panel are identical bench Plate, the bench board ends are equipped with the shearing resistance pin connection that bench board support, the interior plate and outer panel are arranged by span centre.
Interior plate and outer panel are linked together by shear-pin, using rigid connection strengthen interior plate and outer panel collaboration by Power.
A kind of production method of above-mentioned split blade type assembly stair, includes the following steps:
A1, shaper:Using the sizing edge-on mold of steel, waist slab tie with reinforcing bar is carried out in mold, it is pre-buried Hang nail reinforcing rib, embolism extinguishing hole reinforcing rib;
A2, concreting:The casting concrete in the mold after above-mentioned assembling reinforcement skeleton, using vibrating spear by coagulation Soil vibrates uniformly;When pouring, pin hole is reserved on the bench board support at both ends, shearing resistance pin hole is reserved in the span centre position of waist slab, Nail is hung in setting inside waist slab, and in waist slab plate side, nail is hung in setting;
Nail is hung for demoulding, overturning in the lifting hung nail and be used for waist slab inside waist slab, waist slab plate side.
A3, maintenance:After above-mentioned concreting finishes standing, use steam curing that the waist slab poured is made to reach design It is demoulded after intensity.
Embolism extinguishing hole reinforcing rib in above-mentioned steps A1 be it is U-shaped, vertical equity be arranged in the outer ring in pin hole upper end and under End, the nail reinforcing rib that hangs are horizontally set on the outer ring for hanging nail at " well " type, and described nail reinforcing rib longitudinal direction one end of hanging extends to ladder The bottom surface of section plate, the other end extend to the bottom surface of waist slab along the terraced angle coplanar with nail is hung at right angle.
The quantity in the pin hole in above-mentioned steps A1 is 4-8, diameter 50mm, and the quantity of shearing resistance pin hole is 2, diameter For 60mm, the nail that hangs being arranged inside waist slab is 4, and the nail that hangs of waist slab plate side setting is 2.
The shearing resistance pin hole of above-mentioned interior plate penetrates through, and the shearing resistance pin hole of outer panel sets the back cover of 50mm thickness.
The coarse aggregate size of concrete is 5-25mm in above-mentioned steps A2, and slump is 160 ± 20mm when concrete enters mould, Feed intake height≤500mm when pouring, and concrete vibrating uses internal vibration stick, and vibrate spacing≤400mm.
A kind of assembly method of above-mentioned split blade type assembly stair, includes the following steps:
B1, terraced beam pre-embedded bolt:The pre-buried several and matched fixation in pin hole on the bearing ladder beam of waist slab upper and lower end Bolt;
B2, preparation Lift-on/Lift-off System:Lifting ropes are combined by 1 root long wirerope, 1 strap and 2 chain block production, The long wirerope is as independent suspension rope, and the nail that hangs at both ends and waist slab one end after doubling connects, the intermediate ends after doubling It is connect with tower crane;For the strap as composite hanger rope, it is another with waist slab that the both ends after doubling pass through chain block respectively Hang nail connection in one end;
Change the relative length of independent suspension rope and composite hanger rope by adjusting the hinge length of chain block, realizes The adjustment of prefabricated waist slab lifting posture.
B3, lifting:Interior plate and outer panel are put down using tower crane and combination lifting rope and are hung to staircase corresponding position, then is passed through Chain block adjusts the angle of waist slab, is shelved on the terraced beam of bearing, so that fixing bolt passes through embolism extinguishing hole, and micro- using crowbar It adjusts, correction;
B4, split:The above-mentioned waist slab shelved in place of split is implanted into colored steel pipe in shearing resistance pin hole, by interior plate and outside Side plate is linked together;
B5, node pour:With CGM grouting material by shearing resistance pin hole and pin hole filling reality after above-mentioned split, steam curing is extremely Shear-pin and fixed-hinged support are respectively formed after design strength.
Maximum extension angle≤120 ° of lifting rope are combined in above-mentioned steps B3.
The tube wall of flower steel pipe is equipped with several infiltrations slurry hole and ribs in above-mentioned steps B4, and the outer diameter of flower steel pipe is 45-60mm, Wall thickness is 3-5mm.
Seep slurry hole make CGM grouting material cmpletely pour to be implanted into flower steel pipe pin hole in.
Ribs to spend steel pipe sufficiently fixed in pin hole.
CGM grouting material is C40 grades in above-mentioned steps B5.
The invention has the beneficial effects that:A kind of split blade type assembly stair of the invention reduce oneself of monolithic waist slab Weight, can complete the fast hoisting of prefabricated waist slab in not upgrading current In High-Rise Building Construction in the case where mainstream tower crane model, The construction links such as live formwork, assembling reinforcement, concreting and the maintenance in traditional cast in place process are eliminated, work has been saved Phase;Due to using waist slab fragment prefabricating technique, the early period that can meet more Long span single flight waist slab is prefabricated, later period installation is applied Work is wider than the scope of application of integrated precast stair.The present invention can be such that waist slab concreting and appearance Forming Quality obtains To guarantee, while labour's input amount and waste of material are decreased, reduces construction cost.
Detailed description of the invention
Fig. 1 is the top view for the structural schematic diagram that a kind of split blade type of the invention assembles stair.
Fig. 2 is the side view for the structural schematic diagram that a kind of split blade type of the invention assembles stair.
Fig. 3 hangs bowing for the structural schematic diagram of nail reinforcing rib inside the waist slab for a kind of split blade type assembly stair of the invention View.
Fig. 4 hangs the side of the structural schematic diagram of nail reinforcing rib inside the waist slab for a kind of split blade type assembly stair of the invention View.
Fig. 5 is the vertical view of the structural schematic diagram for the waist slab embolism extinguishing hole reinforcing rib that a kind of split blade type of the invention assembles stair Figure.
Fig. 6 is the side view of the structural schematic diagram for the waist slab embolism extinguishing hole reinforcing rib that a kind of split blade type of the invention assembles stair Figure.
Fig. 7 is that a kind of the flat of lifting of split blade type assembly stair of the invention hangs status diagram.
Fig. 8 is that status diagram in place is shelved in a kind of lifting of split blade type assembly stair of the invention.
Attached meaning marked in the figure is as follows:1, outer panel, 2, interior plate, 3, bench board support, 4, waist slab, 5, shearing resistance Pin, 6, hang nail, 7, embolism extinguishing hole reinforcing rib, 8, embolism extinguishing hole, 9, shearing resistance pin hole, 10, hang nail reinforcing rib, 11, long wirerope, 12, short Wirerope, 13, chain block.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
A kind of split blade type assembly stair, including interior plate 2 and outer panel 1, interior plate 2 and outer panel 1 are identical bench Plate 4, the both ends of waist slab 4 are equipped with 4 support 3 of waist slab, interior plate 2 and outer panel 1 and are connected by the shear-pin 5 that span centre is arranged.
A kind of production method of split blade type assembly stair, includes the following steps:
A1, shaper:Using the sizing edge-on mold of steel, 4 tie with reinforcing bar of waist slab is carried out in mold, in pin The top and bottom vertical equity embedded U-shaped embolism extinguishing hole reinforcing rib 7 of keyhole outer ring is hung in the outer ring for hanging nail 6 at " well " type is pre-buried Follow closely reinforcing rib 10, hang the bottom surface that the longitudinal one end of nail reinforcing rib 10 extends to waist slab 4, the other end at right angle, along with hang nail 6 with flat The terraced angle in face extends to the bottom surface of waist slab 4;
A2, concreting:The casting concrete in the mold after assembling reinforcement skeleton is shaken concrete using vibrating spear It smashes uniformly;The pin hole that 4-8 diameter is 50mm, the span centre position of waist slab 4 are reserved when pouring, on 4 support 3 of waist slab at both ends The shearing resistance pin hole 9 that reserved 2 diameters are 60mm is set, the shearing resistance pin hole 9 of interior plate 2 penetrates through, and the shearing resistance pin hole 9 of outer panel 1 is set The back cover of 50mm thickness;It is arranged 4 inside waist slab 4 and hangs nail, is arranged 2 in 4 plate side of waist slab and hangs nail 6;
The coarse aggregate size of the concrete poured is 5-25mm, and slump is 160 ± 20mm when concrete enters mould, when pouring Feed intake height≤500mm, and concrete vibrating uses internal vibration stick, and vibrate spacing≤400mm.
A3, maintenance:After concreting finishes standing, use steam curing that the waist slab poured 4 is made to reach design strong It is demoulded after degree.
A kind of assembly method of split blade type assembly stair, includes the following steps:
B1, terraced beam pre-embedded bolt:It is pre-buried several matched solid with pin hole on the bearing ladder beam of 4 upper and lower end of waist slab Determine bolt;
B2, preparation Lift-on/Lift-off System:Pass through 1 root long wirerope, 11,1 13 production groups of strap 12 and 2 chain block Lifting rope is closed, the long wirerope 11 is used as independent suspension rope, and the both ends after doubling are connect with the nail 6 that hangs of 4 one end of waist slab, doubling Intermediate ends afterwards are connect with tower crane;The strap 12 is used as composite hanger rope, and the both ends after doubling are respectively by pulling calabash Reed 13 connect with the nail 6 that hangs of 4 other end of waist slab;
B3, lifting:Staircase corresponding position is hung to by waist slab 4 is flat using tower crane and combination lifting rope, then by pulling calabash Reed 13 adjusts the angle of waist slab 4, combines maximum extension angle≤120 ° of lifting rope, is shelved on the terraced beam of bearing, so that fixed spiral shell Bolt passes through embolism extinguishing hole 8, and utilizes crowbar fine tuning, correction;
B4, split:The above-mentioned waist slab 4 shelved in place of split, being implanted into outer diameter in shearing resistance pin hole 9 is 48.3mm, wall thickness For 3.6mm, and tube wall is equipped with several flower steel pipes for seeping slurry hole and ribs, and interior plate 2 and outer panel 1 are linked together;
B5, node pour:With C40 grades of CGM grouting materials by after above-mentioned split shearing resistance pin hole 9 and pin hole fill real, steam Shear-pin 5 and fixed-hinged support are respectively formed after maintenance to design strength.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation Technical solution is fallen within the scope of protection of the present invention.

Claims (9)

1. a kind of split blade type assembles stair, which is characterized in that including interior plate and outer panel, the interior plate and outer panel are phase Same waist slab, the bench board ends are equipped with bench board support, the shearing resistance that the interior plate and outer panel are arranged by span centre Pin connection;Its assembly method, includes the following steps:
B1, terraced beam pre-embedded bolt:The pre-buried several and matched fixed spiral shell in pin hole on the bearing ladder beam of waist slab upper and lower end Bolt;
B2, preparation Lift-on/Lift-off System:It is described by 1 root long wirerope, 1 strap and 2 chain block production combination lifting ropes Long wirerope is as independent suspension rope, and the nail that hangs at both ends and waist slab one end after doubling connects, intermediate ends and tower after doubling Hang connection;For the strap as composite hanger rope, the both ends after doubling pass through chain block and the waist slab other end respectively Hang nail connection;
B3, lifting:Waist slab is put down using tower crane and combination lifting rope and is hung to staircase corresponding position, then passes through chain block and adjusts The angle of waist slab is shelved on the terraced beam of bearing, so that fixing bolt passes through embolism extinguishing hole, and utilizes crowbar fine tuning, correction;
B4, split:The above-mentioned waist slab shelved in place of split is implanted into colored steel pipe in shearing resistance pin hole, by interior plate and outer panel It is linked together;
B5, node pour:With CGM grouting material by after above-mentioned split shearing resistance pin hole and pin hole fill real, steam curing is to designing Shear-pin and fixed-hinged support are respectively formed after intensity.
2. a kind of split blade type according to claim 1 assembles stair, which is characterized in that combine lifting rope in the step B3 Maximum extension angle≤120 °.
3. a kind of split blade type according to claim 1 assembles stair, which is characterized in that the pipe of flower steel pipe in the step B4 Wall is equipped with several infiltrations slurry hole and ribs, and the outer diameter of flower steel pipe is 45-60mm, wall thickness 3-5mm.
4. a kind of split blade type according to claim 1 assembles stair, which is characterized in that CGM grouting material in the step B5 It is C40 grades.
5. a kind of split blade type according to claim 1 assembles stair, which is characterized in that production method includes the following steps:
A1, shaper:Using the sizing edge-on mold of steel, waist slab tie with reinforcing bar is carried out in mold, it is pre-buried to hang nail Reinforcing rib, embolism extinguishing hole reinforcing rib;
A2, concreting:The casting concrete in the mold after above-mentioned assembling reinforcement skeleton, is shaken concrete using vibrating spear It smashes uniformly;When pouring, pin hole is reserved on the bench board support at both ends, shearing resistance pin hole is reserved in the span centre position of waist slab, in ladder Nail is hung in section intralamellar part setting, and in waist slab plate side, nail is hung in setting;
A3, maintenance:After above-mentioned concreting finishes standing, use steam curing that the waist slab poured is made to reach design strength After demould.
6. a kind of split blade type according to claim 5 assembles stair, which is characterized in that the embolism extinguishing hole in the step A1 adds Strengthening tendons be it is U-shaped, vertical equity is arranged in the top and bottom of the outer ring in pin hole, and the nail reinforcing rib that hangs is set at " well " type level Set in the outer ring for hanging nail, the bottom surface hung nail reinforcing rib longitudinal direction one end and extend to waist slab, the other end at right angle, along with hang nail Coplanar terraced angle extends to the bottom surface of waist slab.
7. a kind of split blade type according to claim 5 assembles stair, which is characterized in that pin hole in the step A1 Quantity is 4-8, diameter 50mm, and the quantity of shearing resistance pin hole is 2, diameter 60mm, and the nail that hangs being arranged inside waist slab is 4 A, the nail that hangs of waist slab plate side setting is 2.
8. a kind of split blade type according to claim 5 assembles stair, which is characterized in that the shearing resistance pin hole of the interior plate passes through Logical, the shearing resistance pin hole of outer panel sets the back cover of 50mm thickness.
9. a kind of split blade type according to claim 5 assembles stair, which is characterized in that concrete is thick in the step A2 Aggregate size is 5-25mm, and slump is 160 ± 20mm when concrete enters mould, and feed intake height≤500mm when pouring, concrete vibration It smashes using internal vibration stick, vibrate spacing≤400mm.
CN201610557788.5A 2016-07-15 2016-07-15 A kind of split blade type assembly stair and preparation method thereof and assembly method CN106121145B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106930484A (en) * 2017-03-15 2017-07-07 中建三局第建设工程有限责任公司 For the full precast stairway system and construction method of prefabricated concrete structure
CN108560842B (en) * 2018-06-01 2020-05-15 孟凡林 Precast concrete stair section with multipurpose holes and preparation and application thereof
CN109025291A (en) * 2018-07-25 2018-12-18 中国十七冶集团有限公司 A kind of construction method of separate type precast stair
CN109322485A (en) * 2018-09-06 2019-02-12 江苏省苏中建设集团股份有限公司 A kind of prefabricated assembled stair construction technology of combination

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JP2002276167A (en) * 2001-03-16 2002-09-25 Oki Kogyo:Kk Support for inclined structure setting method and the inclined structure setting method
CN102767288A (en) * 2012-01-17 2012-11-07 中国建筑第四工程局有限公司 Method and structure for mounting precast reinforced concrete stairs
CN104153528A (en) * 2014-08-06 2014-11-19 山东万斯达建筑工业化研究院有限公司 Prefabricated hollow staircase
CN104499663A (en) * 2014-12-11 2015-04-08 济南轨道交通集团有限公司 Concrete stair and assembling method of concrete stair
CN204590456U (en) * 2015-03-25 2015-08-26 华南理工大学 A kind of precast splice type slab type stairway
CN204960180U (en) * 2015-08-20 2016-01-13 中国建筑第七工程局有限公司 Burst formula stair
CN105298040A (en) * 2015-10-30 2016-02-03 中汇建筑集团有限公司 Light assembly type stairway and construction method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002276167A (en) * 2001-03-16 2002-09-25 Oki Kogyo:Kk Support for inclined structure setting method and the inclined structure setting method
CN102767288A (en) * 2012-01-17 2012-11-07 中国建筑第四工程局有限公司 Method and structure for mounting precast reinforced concrete stairs
CN104153528A (en) * 2014-08-06 2014-11-19 山东万斯达建筑工业化研究院有限公司 Prefabricated hollow staircase
CN104499663A (en) * 2014-12-11 2015-04-08 济南轨道交通集团有限公司 Concrete stair and assembling method of concrete stair
CN204590456U (en) * 2015-03-25 2015-08-26 华南理工大学 A kind of precast splice type slab type stairway
CN204960180U (en) * 2015-08-20 2016-01-13 中国建筑第七工程局有限公司 Burst formula stair
CN105298040A (en) * 2015-10-30 2016-02-03 中汇建筑集团有限公司 Light assembly type stairway and construction method thereof

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