CN110206242A - A kind of precast stair - Google Patents
A kind of precast stair Download PDFInfo
- Publication number
- CN110206242A CN110206242A CN201910369976.9A CN201910369976A CN110206242A CN 110206242 A CN110206242 A CN 110206242A CN 201910369976 A CN201910369976 A CN 201910369976A CN 110206242 A CN110206242 A CN 110206242A
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- CN
- China
- Prior art keywords
- ear
- terraced
- chooses
- variable cross
- prefabricated gangboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The present invention is a kind of precast stair, including prefabricated gangboard, variable cross-section ladder beam, terraced back building coats, terraced beam bottom choose ear, terraced back chooses ear, prefabricated gangboard is mill work, one end of terraced back building coats is arranged in one end face of variable cross-section ladder beam, and the end face of variable cross-section ladder beam is additionally provided with terraced back and chooses ear, the other end of variable cross-section ladder beam is provided with beam bottom and chooses ear, and section ladder beam and terraced back building coats, terraced beam bottom choose ear, terraced back chooses ear pouring molding is cast in situs part at the scene；The upper end and lower end of prefabricated gangboard are both provided with cast in situs part, the upper end of prefabricated gangboard is fixedly connected on terraced beam bottom and chooses on ear, the lower end of prefabricated gangboard is slidably supported to choose on ear in terraced back, and the last one of precast stair is marked time to be formed by variable cross-section ladder beam, terraced back building coats and the height difference of prefabricated gangboard upper end top surface.The present invention reduces the span of prefabricated gangboard, avoids single prefabricated gangboard weight excessive.
Description
Technical field
The invention belongs to assembled architecture technical field, in particular to a kind of precast stair belongs to the innovation of precast stair
Technology.
Background technique
Precast stair is obtained because its standardization level is high, production difficulty is low, construction and installation are convenient in assembled architecture field
It is widely applied.However, the existing precast stair applied in engineering practice is generally in prefabricated gangboard upper and lower ends with one section
Length is more than the flat plate section of step surface width, and the setting of flat plate section directly increases material utilization amount, and in some spans compared with building
In ladder, longer flat plate section further increases the effective span of prefabricated gangboard, causes prefabricated gangboard calculated thickness to increase, and make
Increase at prefabricated gangboard material utilization amount, construction weight increases, therefore the production of component and transportation cost increase；Construction weight mistake
The tower crane type selecting in engineering construction is had an effect on greatly, causes tower crane increased costs.These factors limit precast stair in some items
Popularization and application in mesh.
Summary of the invention
The purpose of the present invention is to provide a kind of precast stair, the present invention can reduce the span of prefabricated gangboard, solve band
The prefabricated gangboard of flat plate section overweight the problem of causing.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: precast stair of the invention includes prefabricated
Gangboard, variable cross-section ladder beam, terraced back building coats, terraced beam bottom choose ear, terraced back chooses ear, wherein prefabricated gangboard is prefabrication
Part, one end of terraced back building coats is arranged in an end face of variable cross-section ladder beam, and the end face of variable cross-section ladder beam is additionally provided with
Terraced back chooses ear, and the other end of variable cross-section ladder beam is provided with beam bottom and chooses ear, terraced beam bottom choose ear and terraced back to choose ear all be terraced beam
Protrusion part, section ladder beam and terraced back building coats, terraced beam bottom choose ear, terraced back chooses ear pouring molding is scene at the scene
Pour part；The upper end and lower end of prefabricated gangboard are both provided with cast in situs part, and the upper end of prefabricated gangboard is fixedly connected on terraced beam bottom
It chooses on ear, the lower end of prefabricated gangboard is slidably supported to choose on ear in terraced back, and the last one of precast stair is marked time by variable cross-section ladder
Beam, terraced back building coats and the height difference of prefabricated gangboard upper end top surface are formed.
In precast stair of the invention, the last one is marked time by variable cross-section ladder beam, terraced back building coats and prefabricated gangboard
The height difference of upper end top surface is formed, and prefabricated gangboard upper and lower ends do not have to that too long flat plate section is arranged, reduce prefabricated gangboard across
Degree, avoids the excessive problem of prefabricated gangboard weight, and connecting structure is simple, and transport, lifting construction are convenient, is conducive to save work
Cheng Chengben.
Detailed description of the invention
Fig. 1 is the scheme of installation of precast stair of the invention；
Fig. 2 is the schematic diagram of prefabricated gangboard in the present invention；
Fig. 3 is variable cross-section ladder beam in the present invention, terraced beam bottom chooses ear, terraced back chooses the schematic diagram of ear and pin key；
Fig. 4 is the schematic diagram of prefabricated gangboard upper end connection in the present invention；
Fig. 5 is the schematic diagram of prefabricated gangboard lower end connection in the present invention.
Specific embodiment
The present invention will be described in further detail with embodiment with reference to the accompanying drawing.
Fig. 1 is the scheme of installation of the precast stair of a preferred embodiment of the present invention, includes prefabricated gangboard 10, variable cross-section
Terraced beam 20, terraced back building coats 30, terraced beam bottom choose ear 40, terraced back chooses ear 50, wherein prefabricated gangboard 10 is mill work,
One end of terraced back building coats 30 is arranged in one end face of variable cross-section ladder beam 20, and the end face of variable cross-section ladder beam 20 is also set up
There is terraced back to choose ear 50, the other end of variable cross-section ladder beam 20 is provided with beam bottom and chooses ear 40 [s1], and terraced beam bottom chooses ear 40 and terraced beam
It is the protrusion part of terraced beam 20 that ear 50 is chosen all in top, and section ladder beam 20 and terraced back building coats 30, terraced beam bottom choose ear 40, terraced back
Choosing ear 50, pouring molding is cast in situs part at the scene；The upper end and lower end of prefabricated gangboard 10 are both provided with cast in situs part, in advance
The upper end of gangboard 10 processed is fixedly connected on terraced beam bottom and chooses on ear 40, and the lower end of prefabricated gangboard 10 is slidably supported to choose ear 50 in terraced back
On, the last one of precast stair, which is marked time, is pushed up by variable cross-section ladder beam 20, terraced back building coats 30 with prefabricated 10 upper end of gangboard
The height difference in face 110 is formed.
Fig. 2 is the schematic diagram of the prefabricated gangboard 10 of the precast stair of a preferred embodiment of the present invention.The prefabricated gangboard 10
The tyre tread width of upper and lower side final stage is no more than the tyre tread width of intermediate section of marking time, and without longer flat plate section, greatly reduces
The effective span of prefabricated gangboard 10, reduces the calculated thickness of prefabricated gangboard 10, saves material utilization amount, alleviate component weight
Amount.
In addition, the ladder beam bottom, which is chosen, to be provided with bottom and chooses ear pin key 410 for the ease of connection on ear 40；Terraced back chooses ear 50
On be provided with top and choose ear pin key 510, one end of prefabricated gangboard 10 by terraced beam bottom choose the bottom being arranged on ear 40 choose ear pin key 410 with
One end that terraced beam bottom chooses ear 40 is connected to become an entirety；The lower end of prefabricated gangboard 10 is slidably supported to choose set by ear 50 in terraced back
Top choose on ear pin key 510, top choose ear pin key 510 play be connected and position-limiting action, the lower end of prefabricated gangboard 10 can be in terraced beam
Top is chosen to be slided on ear 50, to meet shockproof requirements.Above-mentioned bottom, which chooses ear pin key 410 and is fixed on terraced beam bottom, chooses on ear 40, and ear pin is chosen on top
Key 510 is fixed on terraced back and chooses on ear 50, as shown in figure 3, bottom is chosen when it is implemented, the upper end of prefabricated gangboard 10 is equipped with through-hole
Ear pin key 410 is inserted into the through-hole that prefabricated 10 upper end of gangboard is equipped with, then by filling sand-stone concrete in hole, is allowed to fixed
Connection；Bottom chooses ear pin key 510 and is inserted into the through-hole that prefabricated 10 lower end of gangboard is equipped with, then sandstone is filled only with inside through-hole, not solid
Fixed connection makes under prefabricated gangboard 10 so that the lower end of prefabricated gangboard 10 and terraced back, which are chosen, has certain gap between ear 50
End can choose in terraced back to be slided on ear 50.
In the present embodiment, side installation is provided between the upper end side and variable cross-section ladder beam 20 of the prefabricated gangboard 10
Seam 60, the upper end bottom surface of prefabricated gangboard 10 and terraced beam bottom, which are chosen, is provided with upper bottom surface installation seam 70 between ear 40；Prefabricated gangboard 10
Lower end bottom surface and terraced back choose and be provided with bottom surface installation seam 80 between ear 50, as shown in Figure 4,5.
In the present embodiment, the side installation seam 60 is filled using flexible material；Upper bottom surface installation seam 70 uses cement bonded sand
Slurry tiling or filling；Bottom surface installation seam 80 is tiled or is clogged using cement mortar.
For the ease of the positioning of design and construction, the total height of the larger side in section of the variable cross-section ladder beam 20 is equal to ladder
The height that beam bottom chooses ear 40 adds building along with the height of prefabricated 10 upper end of gangboard plus the height of bottom surface installation seam 70
A terraced height marked time, then the thickness of terraced back building coats 30 is subtracted, total height of variable cross-section ladder beam 20 is obtained after calculating
Degree.
In the present embodiment, the ladder beam bottom chooses the bottom that ear 40 is located at the 20 larger side in section of variable cross-section ladder beam, terraced beam bottom
The bottom surface for choosing ear 40 is flushed with the bottom surface of variable cross-section ladder beam 20.The ladder back chooses ear 50, and to be located at 20 sections of variable cross-section ladder beam smaller
The top of side, the top surface that terraced back chooses ear 50 are flushed with the top surface of variable cross-section ladder beam 20.
The width of the side installation seam 60 is 10~30mm.In the present embodiment, the width of side installation seam 60 is preferably
20 mm。
The height of the upper bottom surface installation seam 70 is 10~30 mm.In the present embodiment, the height of upper bottom surface installation seam 70 is excellent
It is selected as 20.
The height of the bottom surface installation seam 80 is 10~30 mm.In the present embodiment, the height of bottom surface installation seam 80 is excellent
It is selected as 20 mm.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of precast stair, it is characterised in that include prefabricated gangboard (10), variable cross-section ladder beam (20), terraced back building coats
(30), terraced beam bottom chooses ear (40), terraced back chooses ear (50), wherein prefabricated gangboard (10) is mill work, variable cross-section ladder beam
(20) a end face is arranged in one end of terraced back building coats (30), and the end face of variable cross-section ladder beam (20) is additionally provided with ladder
Back is chosen ear (50), and the other end of variable cross-section ladder beam (20) is provided with beam bottom and chooses ear (40) [s1], terraced beam bottom choose ear (40) and
It is the protrusion part of terraced beam (20) that terraced back, which chooses ear (50) all, section ladder beam (20) and terraced back building coats (30), terraced beam bottom
Choose ear (40), terraced back chooses ear (50) pouring molding is cast in situs part at the scene；The upper end and lower end of prefabricated gangboard (10) are all
It is provided with cast in situs part, the upper end of prefabricated gangboard (10) is fixedly connected on terraced beam bottom and chooses on ear (40), prefabricated gangboard (10)
Lower end is slidably supported to choose on ear (50) in terraced back, and the last one of precast stair is marked time by variable cross-section ladder beam (20), terraced back
Building coats (30) and the height difference of prefabricated gangboard (10) upper end top surface (110) are formed.
2. precast stair according to claim 1, it is characterised in that the upper end side of the prefabricated gangboard (10) and change
Side installation seam (60) is provided between section ladder beam (20), the upper end bottom surface of prefabricated gangboard (10) and terraced beam bottom choose ear (40)
Between be provided with upper bottom surface installation seam (70)；The lower end bottom surface of prefabricated gangboard (10) and terraced back are chosen and are provided between ear (50)
Bottom surface installation seam (80).
3. precast stair according to claim 2, it is characterised in that the side installation seam (60) is filled out using flexible material
It fills；Upper bottom surface installation seam (70) is tiled or is clogged using cement mortar；Bottom surface installation seam (80) using cement mortar tile or
Filling.
4. precast stair according to claim 1, it is characterised in that the larger side in section of the variable cross-section ladder beam (20)
Total height be equal to terraced beam bottom and choose ear (40) height plus bottom surface installation seam height (70), then plus prefabricated gangboard (10) upper end it is high
Degree, then plus one riser height of stair, then subtract terraced back building coats (30) thickness to get the total of variable cross-section ladder beam (20) out
Highly.
5. precast stair according to any one of claims 1 to 4, it is characterised in that the ladder beam bottom is chosen to be arranged on ear (40)
There is bottom to choose ear pin key (410)；Terraced back, which is chosen, to be provided with top and chooses ear pin key (510) on ear (50), one end of prefabricated gangboard 10 passes through
Terraced beam bottom chooses that ear pin key (410) are chosen at the bottom being arranged on ear (40) and terraced beam bottom chooses one end of ear (40) and is connected to become an entirety；
The lower end of prefabricated gangboard (10) is slidably supported to choose top set by ear (50) in terraced back and chooses on ear pin key (510).
6. precast stair according to claim 5, it is characterised in that the ladder beam bottom chooses ear (40) and is located at variable cross-section ladder beam
(20) bottom of the larger side in section, the bottom surface that terraced beam bottom chooses ear (40) are flushed with the bottom surface of variable cross-section ladder beam (20).
7. precast stair according to claim 6, it is characterised in that the ladder back chooses ear (50) and is located at variable cross-section ladder beam
(20) top of the smaller side in section, the top surface that terraced back chooses ear (50) are flushed with the top surface of variable cross-section ladder beam (20).
8. precast stair according to claim 7, it is characterised in that the width of the side installation seam (60) is 10~30.
9. precast stair according to claim 7, it is characterised in that the upper bottom surface installation seam (70) is highly 10~30.
10. precast stair according to claim 7, it is characterised in that bottom surface installation seam (80) highly for 10~
30。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369976.9A CN110206242A (en) | 2019-05-06 | 2019-05-06 | A kind of precast stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369976.9A CN110206242A (en) | 2019-05-06 | 2019-05-06 | A kind of precast stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206242A true CN110206242A (en) | 2019-09-06 |
Family
ID=67786849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910369976.9A Withdrawn CN110206242A (en) | 2019-05-06 | 2019-05-06 | A kind of precast stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965712A (en) * | 2019-12-21 | 2020-04-07 | 广东恒基隆建设有限公司 | Prefabricated staircase for house building and installation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH642707A5 (en) * | 1979-11-28 | 1984-04-30 | Pichler Rudolf | STAIR CONSTRUCTION ELEMENT. |
| CN203361496U (en) * | 2013-07-22 | 2013-12-25 | 深圳市清华苑建筑设计有限公司 | Seismic resistant stair and building with same |
| CN204728590U (en) * | 2015-04-27 | 2015-10-28 | 南京长江都市建筑设计股份有限公司 | The prefabricated cantilever stair of a kind of two-part |
| CN208396179U (en) * | 2018-05-11 | 2019-01-18 | 同圆设计集团有限公司 | A kind of prefabricated cantilever stair |
| CN109653456A (en) * | 2019-02-02 | 2019-04-19 | 河南绿建建筑科技有限公司 | Spherical hinge supporting steel concrete modular stairway |
-
2019
- 2019-05-06 CN CN201910369976.9A patent/CN110206242A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH642707A5 (en) * | 1979-11-28 | 1984-04-30 | Pichler Rudolf | STAIR CONSTRUCTION ELEMENT. |
| CN203361496U (en) * | 2013-07-22 | 2013-12-25 | 深圳市清华苑建筑设计有限公司 | Seismic resistant stair and building with same |
| CN204728590U (en) * | 2015-04-27 | 2015-10-28 | 南京长江都市建筑设计股份有限公司 | The prefabricated cantilever stair of a kind of two-part |
| CN208396179U (en) * | 2018-05-11 | 2019-01-18 | 同圆设计集团有限公司 | A kind of prefabricated cantilever stair |
| CN109653456A (en) * | 2019-02-02 | 2019-04-19 | 河南绿建建筑科技有限公司 | Spherical hinge supporting steel concrete modular stairway |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965712A (en) * | 2019-12-21 | 2020-04-07 | 广东恒基隆建设有限公司 | Prefabricated staircase for house building and installation method thereof |
| CN110965712B (en) * | 2019-12-21 | 2021-06-25 | 广东恒基隆建设有限公司 | Prefabricated staircase for house building and installation method thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190906 |
|
| WW01 | Invention patent application withdrawn after publication |