CN112482676B - Prefabricated staircase and installation process thereof - Google Patents
Prefabricated staircase and installation process thereof Download PDFInfo
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- CN112482676B CN112482676B CN202011313822.7A CN202011313822A CN112482676B CN 112482676 B CN112482676 B CN 112482676B CN 202011313822 A CN202011313822 A CN 202011313822A CN 112482676 B CN112482676 B CN 112482676B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/09—Tread-and-riser units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The application relates to a prefabricated staircase and a mounting process thereof, which comprises a bottom plate, a plurality of installation tables and a plurality of mark time units, wherein the bottom plate is obliquely arranged, the installation tables are respectively arranged at two ends of the length direction of the bottom plate, the mark time units are distributed along the length direction of the bottom plate, the bottom plate is provided with a clamping groove extending along the length direction of the bottom plate, and each mark time unit is provided with a clamping piece clamped with the clamping groove towards one side of the bottom plate, and the upper end of the bottom plate is obliquely provided with a notch for the clamping piece to enter the clamping groove. This application has the effect that reduces the condition that prefabricated staircase broke off in the transportation.
Description
Technical Field
The application relates to the technical field of building components, in particular to a prefabricated staircase and an installation process thereof.
Background
At present, the stair is an important component for vertical traffic between floors in a building, the preparation method of the stair mainly comprises a cast-in-place mode and a prefabricated mode, the cast-in-place stair can give full play to the plasticity of reinforced concrete, the structural integrity is good, the application range is wide, but the stair has the defects of difficult formwork support, complex construction process, long construction period and the like. In order to solve the problems of difficulty in formwork erecting and long construction period of the traditional cast-in-place stair, people prepare the prefabricated stair. The prefabricated staircase is manufactured firstly and then transported to a construction site for installation.
In the related technology, the mounting platforms at the two ends of the prefabricated staircase in the length direction are respectively fixed on the upper-layer cross beam and the lower-layer cross beam, and the construction of the casting belt behind the platform plate is carried out after the prefabricated staircase is mounted, so that the prefabricated staircase has the advantages of simple construction, low cost, short construction period and the like.
With respect to the related art in the above, the inventors consider that: the prefabricated staircase that preselection was made is because self length is longer, and is easy to collide with the foreign object or be pressed down by the foreign object in the transportation, and the junction thickness between the adjacent marking time is less, and when prefabricated staircase pressurized, there was the risk of fracture in the junction, therefore still has the space of improving.
Disclosure of Invention
In order to reduce the situation that the prefabricated staircase breaks during transportation, the application provides a prefabricated staircase and an installation process thereof.
The application provides a prefabricated staircase and installation technology adopts following technical scheme:
the utility model provides a prefabricated staircase, includes the bottom plate that the slope set up, sets up respectively two mount tables and a plurality of unit of marking time at bottom plate length direction both ends, the unit of marking time distributes along bottom plate length direction, the bottom plate is provided with the draw-in groove, each the unit of marking time all be provided with towards one side of bottom plate with the fastener of draw-in groove joint, the slope upper end of bottom plate is seted up and is supplied the breach in the fastener entering draw-in groove.
By adopting the technical scheme, the prefabricated staircase is divided into the plurality of the stepping units and the bottom plate, the bottom plates of all sections of the prefabricated staircase can be stacked together in the transportation process, and the stepping units are stacked together, so that the situation of pressure fracture at the stepping joint of the prefabricated staircase is favorably reduced in the transportation process; meanwhile, the length of the bottom plate can be prefabricated according to the actual requirement of a construction site, and the steps are clamped with the clamping grooves of the bottom plate one by one to complete installation operation, so that the flexibility of on-site installation of the prefabricated staircase is improved; the draw-in groove extends along backing plate length direction, erects the bottom plate between upper crossbeam and lower floor's crossbeam through the mount table at bottom plate both ends for the bottom plate slope sets up, and the fastener gets into the draw-in groove from the breach in, thereby the unit of marking time is gliding at self action of gravity, is convenient for install the unit of marking time on the bottom plate from upper crossbeam one by one, is favorable to improving prefabricated staircase's installation effectiveness.
Preferably, the bottom plate is provided with a plurality of connecting pipes, and is a plurality of the connecting pipe runs through the bottom plate along bottom plate length direction to stretch out the bottom plate both ends setting, two the mount table towards one side of bottom plate all open a plurality of with the spread groove of connecting pipe joint.
Through adopting above-mentioned technical scheme to can install two mount tables respectively on entablature and bottom end rail earlier, then through the joint of connecting pipe and spread groove, establish the bottom plate erects between two mount tables, assemble prefabricated staircase in an orderly manner, be favorable to reducing prefabricated staircase's the installation degree of difficulty.
Preferably, each connecting groove is communicated with the upper end face of the mounting platform.
Through adopting above-mentioned technical scheme to can follow from down pouring into cement in the spread groove, cement passes through the spread groove that the connecting pipe flows to lower floor's mount table, treats cement shaping back, is favorable to improving the stability of being connected of mount table and bottom plate.
Preferably, the fastener include the standpipe and with the standpipe lower extreme is fixed violently manages, the draw-in groove include with the bottom plate towards the perpendicular groove of one side intercommunication of the unit of marking time, and with erect the horizontal groove of groove lower extreme intercommunication, violently manage the joint and slide in the horizontal groove.
By adopting the technical scheme, the vertical pipe and the transverse pipe form a T shape and are clamped in the clamping groove, so that the stepping unit stably slides to the lower end of the bottom plate under the guiding action of the clamping groove and the self gravity action; simultaneously, the clamping cooperation of fastener and draw-in groove is favorable to improving the unit of marking time and the steadiness of being connected of bottom plate.
Preferably, a counter bore is formed in the upper end face of the stepping unit, the vertical pipe penetrates through the bottom wall of the counter bore, a limiting outer edge is arranged on the outer peripheral face of the upper end of the vertical pipe, and an elastic piece for driving the limiting outer edge to move towards the opening direction of the counter bore is arranged on the bottom wall of the counter bore; the stepping units are provided with inserting pipes corresponding to the counter bores, and adjacent stepping units are fixedly inserted into the counter bores through the inserting pipes; when the inserting pipe is completely inserted into the counter bore, the transverse pipe moves downwards to the opening of the transverse groove.
Through adopting the above technical scheme, in the installation, can earlier stretch into the breach with the fastener of first piece unit of marking time, under ordering of elastic component, violently manage and support terminal surface under the unit of marking time, and under the unit self action of gravity of marking time, violently manage and support the breach lateral wall, the breach lateral wall provides the holding power for the fastener, be favorable to marking time the unit temporary stabilization in bottom plate slope upper end, then when marking time the unit to the second piece and installing, can insert the counter sink from last to down with the grafting pipe of the unit of marking time of second piece earlier, when connecting two units of marking time, the grafting pipe extrudees the standpipe and forces violently to move down to the horizontal groove opening part, thereby realize the unblock of unit of marking time and bottom plate, two units of marking time slide down under the action of self action of gravity, support the breach lateral wall until the fastener of second piece, thereby stabilize two units of marking time in bottom plate slope upper end, repeat above step can connect gradually and from last to moving down to the slope of bottom plate each unit of marking time and move down to the slope down in proper order And the installation mode is favorable for reducing the damage condition caused by collision of adjacent stepping units in the gliding process, the installation step is simple, the repeatability is high, and the prefabricated staircase is convenient for installation by constructors.
Preferably, the outer peripheral surface of the transverse tube is provided with a plurality of through holes.
Through adopting above-mentioned technical scheme, treat that the installation respectively mark time the unit and all install the back that finishes, can pour into cement toward spread groove upper end opening, cement gets into the draw-in groove from the breach to through-hole through violently managing, flow to the lower extreme of draw-in groove, be favorable to cement to fill up the draw-in groove, be favorable to improving bottom plate intensity, mark time the unit simultaneously and pass through reinforced concrete with the bottom plate and be connected, be favorable to improving the stability of being connected of marking time unit and bottom plate.
Preferably, the stepping unit is provided with a grouting hole communicated with the inserting pipe along the axial direction of the inserting pipe, and the inserting pipe is communicated with the vertical pipe.
Through adopting above-mentioned technical scheme to can pour into cement into toward the injected hole, make cement fill up the standpipe and violently manage, be favorable to improving the steadiness of being connected of unit and the bottom plate of marking time.
A mounting process of a prefabricated staircase comprises the following specific steps:
the method comprises the following steps: the device comprises a prefabricated bottom plate, an installation platform and a stepping unit;
step two: installing a bottom plate: fixing the two mounting tables at the upper cross beam and the lower cross beam respectively, and clamping and fixing connecting pipes at two ends of the bottom plate in connecting grooves of the two mounting tables from top to bottom respectively;
step three: installing a step unit: firstly, the clamping piece of the stepping unit extends into the gap and props against the side wall of the gap;
step four: splicing adjacent stepping units: inserting the inserting pipe of the next stepping unit into the counter bore of the previous stepping unit, wherein the inserting pipe forces the vertical pipe and the transverse pipe to move downwards, and after the inserting pipe is completely inserted into the counter bore, the stepping unit is pushed downwards to force the stepping unit to slide downwards until the clamping piece of the next stepping unit props against the side wall of the gap;
step five: repeating the step four until the first stepping unit reaches the mounting platform of the lower cross beam;
step six: grouting treatment: cement is poured into toward connecting pipe upper end opening until cement arrives in the spread groove on the bottom end rail mount table, then cement is poured into toward spread groove upper end opening until cement fills up the draw-in groove, then cement is poured into toward the injected hole, until cement fills up the standpipe and violently manages, fills up the spread groove with cement at last.
Through adopting above-mentioned technical scheme, install two blocks of mount tables on entablature and bottom end rail earlier, and fix the connecting pipe joint at bottom plate both ends in the spread groove of mount table, thereby establish the bottom plate of prefabricated staircase at entablature and bottom end rail, then will mark time the unit and assemble on the bottom plate one by one, and simultaneously, the grafting cooperation of grafting pipe and counter bore, when improving the steadiness of adjacent unit of marking time, also force the standpipe to move down, realize the unblock of the unit of marking time, when assembling the unit of marking time one by one, mark time the unit with each and connect, wholly move down, reduce the probability that adjacent unit of marking time bumps, the security of prefabricated staircase when the assembly has been improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the prefabricated staircase is divided into the plurality of stepping units and the bottom plate for transportation, so that classified transportation is facilitated, the bottom plates are stacked together in order, and the stepping units are stacked together in order, so that the situation that the prefabricated staircase is broken due to unbalanced stress during transportation is reduced, the steps are clamped with the clamping grooves of the bottom plate one by one through the clamping pieces to complete installation operation, and the flexibility of field installation of the prefabricated staircase is improved;
2. through installing two mount tables as the tie point at bottom plate both ends on entablature and bottom end rail, the installation of the bottom plate of being convenient for to use the bottom plate as supporting platform, and will mark time the unit and assemble on the bottom plate one by one, simultaneously, the grafting cooperation of grafting pipe and counter bore, and force the standpipe to move down, realize marking time the unblock of unit, and mark time the whole mesh that moves down of unit, be favorable to reducing the probability that adjacent unit of marking time bumps.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural view of the stepping unit of the embodiment after being hidden.
FIG. 3 is a vertical cross-sectional view of the tread unit and the floor in an embodiment of the present application.
Description of reference numerals: 1. a base plate; 11. a card slot; 111. a transverse groove; 112. a vertical slot; 12. a notch; 13. a connecting pipe; 2. a stepping unit; 21. a counter bore; 22. grouting holes; 23. a protrusion; 24. inserting a pipe; 3. an installation table; 31. connecting grooves; 311. limiting the outer edge; 4. a pressure spring; 5. a through hole; 6. a fastener; 61. a vertical tube; 62. a transverse tube.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a prefabricated staircase and an installation process thereof. Referring to fig. 1, a prefabricated staircase includes a base plate 1 disposed in an inclined manner, two installation platforms 3 fixed to an upper cross member and a lower cross member, respectively, and a plurality of tread units 2. Connecting groove 31 is all opened to one side of two mount tables 3 orientation bottom plate 1, and connecting groove 31 and 3 up end intercommunications of mount table, pre-buried in the bottom plate 1 have a plurality of connecting pipes 13, and a plurality of connecting pipes 13 all extend and the setting of 1 both ends protrusion bottom plate in connecting pipe 13 both ends along 1 length direction of bottom plate, and a plurality of connecting pipes 13 are along 1 width direction equal interval distribution of bottom plate. The two ends of the connecting pipe 13 are respectively clamped in the connecting grooves 31 of the two mounting tables 3, and the bottom wall inclination direction of the connecting grooves 31 is consistent with the inclination direction of the connecting pipe 13. Thereby through erectting bottom plate 1 between two mount tables 3, bottom plate 1 can provide the holding power for a plurality of unit 2 of marking time, divide into a plurality of unit 2 and bottom plate 1 of marking time with prefabricated staircase, and the categorised transportation of being convenient for is through neatly stacking together bottom plate 1 to unit 2 of marking time is neatly stacked together, is favorable to reducing prefabricated staircase and should the cracked condition appear in the transportation because of the unbalanced stress.
Referring to fig. 2 and 3, the tread units 2 are distributed along the length of the base plate 1. One side of the bottom plate 1 facing the stepping unit 2 is provided with a clamping groove 11, the length direction of the clamping groove 11 is consistent with that of the bottom plate 1, and the clamping groove 11 comprises a vertical groove 112 and a transverse groove 111. The upper end of the vertical slot 112 is connected to the side of the bottom plate 1 facing the stepping unit 2, and the vertical slot 112 extends in the thickness direction of the bottom plate 1. The horizontal groove 111 communicates with the lower end of the vertical groove 112, and the horizontal groove 111 extends in the width direction of the base plate 1. Fastener 6 includes standpipe 61 and violently pipe 62 with standpipe 61 lower extreme fixed connection, and standpipe 61 constitutes the type of falling T component with violently pipe 62, and when fastener 6 joint was in draw-in groove 11, standpipe 61 stretched into in the vertical groove 112, and violently managed 62 and was located horizontal groove 111. The clamping fit of the clamping piece 6 and the clamping groove 11 is beneficial to improving the connection stability of the stepping unit 2 and the bottom plate 1.
Referring to fig. 2 and 3, a clamping piece 6 clamped with the clamping groove 11 is installed on one side of each stepping unit 2 facing the bottom plate 1, and a notch 12 for the clamping piece 6 to enter the clamping groove 11 is formed in the inclined upper end of the bottom plate 1. The side wall of the gap 12 is connected to the vertical groove 112 and the horizontal groove 111, and the upper end of the gap 12 is connected to the side of the bottom plate 1 facing the stepping unit 2. The upper end face of the stepping unit 2 is provided with a counter bore 21, the vertical pipe 61 penetrates through the bottom wall of the counter bore 21, the outer peripheral face of the upper end of the vertical pipe 61 is fixed with a limiting outer edge 311, the bottom wall of the counter bore 21 is fixed with an elastic part, and the elastic part is a compression spring 4; one end of the pressure spring 4 far away from the counter bore 21 is fixed with the lower end face of the limiting outer edge 311.
Referring to fig. 2 and 3, a bulge 23 is fixed on one side of the stepping unit 2 facing to the lower mounting platform 3, an insertion pipe 24 corresponding to the counter bore 21 is fixed on the lower end surface of the bulge 23, the insertion pipe 24 is vertically arranged downwards, and adjacent stepping units 2 are fixed with the counter bores 21 through the insertion pipes 24 in an insertion manner; when the inserting pipe 24 is not inserted into the counter bore 21, the limiting outer edge 311 is close to the opening direction of the counter bore under the elastic force of the pressure spring 4, the vertical groove 112 is retracted into the stepping unit 2, and the horizontal pipe 62 abuts against the lower end face of the stepping unit 2. When the fastener 6 of the first stepping unit 2 is installed on the bottom plate 1, the vertical tube 61 of the first stepping unit 2 is not extruded by the insertion tube 24, and the horizontal tube 62 can abut against the side wall of the gap 12 communicated with the vertical groove 112, so that the stability of the stepping unit 2 is favorably maintained. When the inserting pipe 24 is completely inserted into the counter bore 21, the inserting pipe 24 abuts against the upper end of the vertical pipe 61, and the vertical pipe 61 is forced to extend out of the stepping unit 2, the horizontal pipe 62 moves downwards to the opening of the transverse groove 111, so that the clamping piece 6 can conveniently enter the clamping groove 11, and the sliding purpose of the stepping unit 2 is realized.
Referring to fig. 2 and 3, a plurality of through holes 5 are formed through the outer peripheral surface of the horizontal tube 62 and the outer peripheral surface of the vertical tube 61, a grouting hole 22 communicated with the insertion tube 24 is formed through the protrusion 23 of the stepping unit 2 along the axial direction of the insertion tube 24, and when the insertion tube 24 is inserted into the counterbore 21, the insertion tube 24 is communicated with the vertical tube 61. Therefore, cement can be poured into the grouting holes 22 to fill the vertical pipes 61, the transverse pipes 62 and the clamping grooves 11 with the cement, which is beneficial to improving the strength of the bottom plate 1 and the connection stability of the stepping units 2 and the bottom plate 1.
A mounting process of a prefabricated staircase comprises the following specific steps:
the method comprises the following steps: the device comprises a prefabricated bottom plate 1, an installation platform 3 and a stepping unit 2;
step two: mounting the bottom plate 1: the two mounting tables 3 are respectively fixed at the upper cross beam and the lower cross beam, and the connecting pipes 13 at the two ends of the bottom plate 1 are respectively clamped and fixed in the connecting grooves 31 of the two mounting tables 3 from top to bottom;
step three: installing the stepping unit 2: firstly, the clamping piece 6 of the stepping unit 2 extends into the gap 12 and props against the side wall of the gap 12;
step four: splicing the adjacent stepping units 2: inserting the inserting pipe 24 of the next stepping unit 2 into the counter bore 21 of the previous stepping unit 2, wherein the inserting pipe 24 forces the vertical pipe 61 and the transverse pipe 62 to move downwards, and after the inserting pipe 24 is completely inserted into the counter bore 21, the stepping unit 2 is pushed downwards to force the stepping unit 2 to slide downwards until the clamping piece 6 of the next stepping unit 2 abuts against the side wall of the gap 12;
step five: repeating the step four until the first stepping unit 2 reaches the mounting table 3 of the lower cross beam;
step six: grouting treatment: cement is poured into the upper end opening of the connecting pipe 13 until the cement reaches the connecting groove 31 on the lower beam mounting table 3, then the cement is poured into the upper end opening of the connecting groove 31 until the clamping groove 11 is filled with the cement, then the cement is poured into the grouting hole 22 until the vertical pipe 61 and the horizontal pipe 62 are filled with the cement, and finally the connecting groove 31 is filled with the cement.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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 (6)
1. A prefabricated staircase, its characterized in that: the stamping device comprises a bottom plate (1) which is obliquely arranged, two mounting platforms (3) which are respectively arranged at two ends of the bottom plate (1) in the length direction and a plurality of stamping units (2), wherein the stamping units (2) are distributed along the length direction of the bottom plate (1), a clamping groove (11) is formed in the bottom plate (1), a clamping piece (6) which is clamped with the clamping groove (11) is arranged on one side of each stamping unit (2) facing the bottom plate (1), and a notch (12) for the clamping piece (6) to enter the clamping groove (11) is formed in the oblique upper end of the bottom plate (1); the clamping piece (6) comprises a vertical pipe (61) and a transverse pipe (62) fixed to the lower end of the vertical pipe (61), the clamping groove (11) comprises a vertical groove (112) communicated with one side, facing the stepping unit (2), of the bottom plate (1) and a transverse groove (111) communicated with the lower end of the vertical groove (112), and the transverse pipe (62) is clamped and slides in the transverse groove (111); a counter bore (21) is formed in the upper end face of the stepping unit (2), the vertical pipe (61) penetrates through the bottom wall of the counter bore (21), a limiting outer edge (311) is arranged on the outer peripheral face of the upper end of the vertical pipe (61), and an elastic piece for driving the limiting outer edge (311) to move towards the opening direction of the counter bore (21) is arranged on the bottom wall of the counter bore (21); the stepping units (2) are provided with inserting pipes (24) corresponding to the counter bores (21), and adjacent stepping units (2) are fixedly inserted into the counter bores (21) through the inserting pipes (24); when the inserting pipe (24) is completely inserted into the counter bore (21), the transverse pipe (62) moves downwards to the opening of the transverse groove (111).
2. A prefabricated staircase according to claim 1, characterized in that: bottom plate (1) is provided with a plurality of connecting pipes (13), and is a plurality of connecting pipe (13) run through bottom plate (1) along bottom plate (1) length direction to stretch out bottom plate (1) both ends setting, two mount table (3) towards one side of bottom plate (1) all open a plurality of with spread groove (31) of connecting pipe (13) joint.
3. A prefabricated staircase according to claim 2, characterized in that: each connecting groove (31) is communicated with the upper end face of the mounting table (3).
4. A prefabricated staircase according to claim 1, characterized in that: the outer peripheral surface of the transverse pipe (62) is provided with a plurality of through holes (5).
5. A prefabricated staircase according to claim 1, characterized in that: the stepping unit (2) is provided with a grouting hole (22) communicated with the insertion pipe (24) in a penetrating manner along the axial direction of the insertion pipe (24), and the insertion pipe (24) is communicated with the vertical pipe (61).
6. A process of installing a prefabricated staircase according to any of the claims 1 to 5, characterized in that: the method comprises the following steps:
the method comprises the following steps: the device comprises a prefabricated bottom plate, an installation platform and a stepping unit;
step two: installing a bottom plate: the two mounting tables (3) are respectively fixed at the upper cross beam and the lower cross beam, and the connecting pipes (13) at the two ends of the bottom plate (1) are respectively clamped and fixed in the connecting grooves (31) of the two mounting tables (3) from top to bottom;
step three: installing a step unit: firstly, a clamping piece (6) of the stepping unit (2) extends into the gap (12) and props against the side wall of the gap (12);
step four: splicing adjacent stepping units: inserting the inserting pipe (24) of the next stepping unit (2) into the counter bore (21) of the previous stepping unit (2), wherein the inserting pipe (24) forces the vertical pipe (61) and the transverse pipe (62) to move downwards, and after the inserting pipe (24) is completely inserted into the counter bore (21), the stepping unit (2) is pushed downwards to force the stepping unit (2) to slide downwards until the clamping piece (6) of the next stepping unit (2) props against the side wall of the gap (12);
step five: repeating the step four until the first stepping unit (2) reaches the mounting table (3) of the lower cross beam;
step six: grouting treatment: cement is poured into the upper end opening of the connecting pipe (13) until the cement reaches the connecting groove (31) on the lower cross beam mounting platform (3), then the cement is poured into the upper end opening of the connecting groove (31) until the clamping groove (11) is filled with the cement, then the cement is poured into the grouting hole (22) until the vertical pipe (61) and the horizontal pipe (62) are filled with the cement, and finally the connecting groove (31) is filled with the cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313822.7A CN112482676B (en) | 2020-11-20 | 2020-11-20 | Prefabricated staircase and installation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313822.7A CN112482676B (en) | 2020-11-20 | 2020-11-20 | Prefabricated staircase and installation process thereof |
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| Publication Number | Publication Date |
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| CN112482676A CN112482676A (en) | 2021-03-12 |
| CN112482676B true CN112482676B (en) | 2022-02-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113027054A (en) * | 2021-03-22 | 2021-06-25 | 浙江宏超建设集团有限公司 | Assembled stair structure and construction method thereof |
| CN114562081B (en) * | 2022-03-16 | 2024-04-30 | 四川华远建设工程有限公司 | Separated stair adopting prefabricated steps and installation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3669762B2 (en) * | 1996-03-21 | 2005-07-13 | 日本カイザー株式会社 | Assembly method of assembly stairs |
| CN105317180A (en) * | 2015-12-02 | 2016-02-10 | 重庆建工第九建设有限公司 | Semi-assembly stair with prefabricated steps |
| CN205712820U (en) * | 2016-04-28 | 2016-11-23 | 三能集成房屋股份有限公司 | A kind of board-like combined staircase |
| CN205712823U (en) * | 2016-06-07 | 2016-11-23 | 三能集成房屋股份有限公司 | Prestressing force assembled stair |
| CN206495436U (en) * | 2017-02-15 | 2017-09-15 | 北京四汇建筑工程有限责任公司 | A kind of precast stair |
| CN206752893U (en) * | 2017-05-05 | 2017-12-15 | 海盐县市政工程有限公司 | A kind of prefabricated assembles stair |
| CN110107038B (en) * | 2019-04-18 | 2020-12-08 | 江苏广兴集团建筑装配科技有限公司 | Anti-seismic concrete prefabricated staircase |
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