CN107268903A - Gangboard and stair - Google Patents
Gangboard and stair Download PDFInfo
- Publication number
- CN107268903A CN107268903A CN201710558886.5A CN201710558886A CN107268903A CN 107268903 A CN107268903 A CN 107268903A CN 201710558886 A CN201710558886 A CN 201710558886A CN 107268903 A CN107268903 A CN 107268903A
- Authority
- CN
- China
- Prior art keywords
- gangboard
- stair
- girt strip
- present
- girt
- 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.)
- Pending
Links
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
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
-
- 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
- E04F11/025—Stairways having stringers
- E04F11/028—Stairways having stringers having a central stringer
-
- 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
- E04F11/104—Treads
- E04F11/116—Treads of stone, concrete or like material or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention provides a kind of gangboard and stair, belong to construction engineering technical field.The gangboard includes gangboard body, and positioned at least two girt strips of its lower surface；The stair include pedal and described gangboard；The pedal is multiple, and staged is distributed on the gangboard body.The gangboard and stair ensure that gangboard intensity, and reduce dead load.
Description
Technical field
The present invention relates to construction engineering technical field, more particularly to a kind of gangboard and stair.
Background technology
Stair mainly divide precast concrete stair and cast-in-place concrete stair：
After the completion of precast concrete stair refers to that concrete is cast elsewhere, then transport to job site and assembled；
Cast-in-place concrete stair refers to the concrete of formwork cast at the construction field (site).
Assembled architecture is because the cycle is short, resource consumption is few, environmental protection the features such as obtained increasingly being widely applied.
In assembled architecture, precast stair is important vertical means of transportation and safe escape passage.
For existing precast concrete stair is compared to cast-in-place concrete stair, although the former is easily standardized work
Industry, curing condition is better than job site, but the former self gravitation is larger, and consumptive material is more, site operation hoisting difficulty is big, into
The requirement of this height, stair intensity difference, transport and assembling is also higher.
The information for being disclosed in the background section is merely intended to deepen the understanding of the general background technology to the present invention, and
It is not construed as recognizing or implies information structure prior art known to those skilled in the art in any form.
The content of the invention
At least one of the present invention proposes a kind of gangboard and stair, can largely solve the above problems.
The first object of the present invention is to provide a kind of gangboard；
The second object of the present invention is to provide a kind of stair.
The purpose of the present invention can be realized by following technical proposal：
On the one hand, the present invention provides a kind of gangboard, and it includes gangboard body, and positioned at least two ribs of its lower surface
Beam.
Further, the quantity of the girt strip is two or three.
Further, the girt strip is two, and is located at two sides of the gangboard lower surface respectively.
Further, the girt strip is three, wherein a girt strip is located at the centre position of the gangboard lower surface, in addition
Two girt strips are located at two sides of the gangboard lower surface respectively.
Further, the girt strip cross section is quadrilateral structure.
On the other hand, the present invention also provides a kind of stair, including pedal and described gangboard；
The pedal is multiple, and staged is distributed on the gangboard body.
Further, it is provided with to surround outside light material block, the light material block in the pedal and has concrete layer.
Further, reinforced frame is provided with the concrete layer, and described reinforced frame is stretched into the gangboard body.
Further, reinforced frame is provided with the gangboard body.
Further, the concrete layer is formed with gangboard body by one cast.
Compared with prior art, this gangboard and stair have advantages below：
On the one hand, the gangboard includes gangboard body, and positioned at least two girt strips of its lower surface, improves gangboard
Bearing capacity and bulk strength, meet its use demand under normal circumstances；
In addition, the girt strip is at least two, the lower surface of gangboard body is arranged on, without gangboard body is integrally strengthened,
Alleviate the deadweight of structure, convenient transport and assembled in situ.
On the other hand, the stair include pedal and described gangboard；The pedal to be multiple, and staged be distributed in it is described
On gangboard body；The stair that the present invention is provided, including described gangboard, therefore all advantages with gangboard, just do not go to live in the household of one's in-laws on getting married herein
State.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the force analysis figure of the conventional cranked slab stairs referred in the embodiment of the present invention one；
Fig. 2 is a kind of force analysis figure of the new precast stair referred to of the embodiment of the present invention；
Fig. 3 is the concrete structure schematic diagram of the lateral inner for the stair that the embodiment of the present invention two is provided；
Fig. 4 is the structural representation that the gangboard body interior that the embodiment of the present invention one is provided fills hollow tube；
Fig. 5 is the structural representation of the gangboard body that the embodiment of the present invention one based on Fig. 3 is provided and girt strip；
Fig. 6 is the axonometric drawing for the stair that the embodiment of the present invention two based on Fig. 3 and Fig. 5 is provided；
Fig. 7 is the axonometric drawing for the girt strip that the embodiment of the present invention one based on Fig. 3 and Fig. 5 is provided；
Fig. 8 is the side view for the girt strip that the embodiment of the present invention one based on Fig. 7 is provided.
Reference：1- pedals；2- gangboard bodies；3- concrete layers；4- light material blocks；5- girt strips；6- steel
Ledges；7- hollow tubes；8- hole for hoist built-in fittings.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, the orientation or position of the instruction such as term " on ", " under ", " interior ", " outer "
It is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description to put relation, rather than
Indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connection " should be done
It broadly understood, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can mechanically connect,
It can also be electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can be two element internals
Connection.For the ordinary skill in the art, it can understand that above-mentioned term in the present invention specific contains with concrete condition
Justice.
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Embodiment one
As shown in figure 5, the present embodiment provides a kind of gangboard, it includes gangboard body 2, and positioned at its lower surface at least
Two girt strips 5.
Specifically, at least two girt strips 5 are grown up strip, it is preferable that at least two girt strips 5 are uniformly arranged on gangboard body
2 lower surface, the pressure passed over for the dispersed upper surface of gangboard body 2.
More specifically, the girt strip 5 uniformly divides in the lower surface of gangboard body 2 in dentation along the gangboard body lower surface gradient
Cloth.
It is pointed out that embodiment improves the bearing capacity of gangboard body 2 and bulk strength, meeting its normal
In the case of use demand；In addition, the girt strip 5 is at least two, the lower surface of gangboard body 2 is arranged on, without by gangboard sheet
Body 2 is overall to be strengthened, and not only alleviates the deadweight of structure, and convenient transport and assembled in situ.
The comparison and analysis of stresses of the present embodiment and prior art：
Conventional cranked slab stairs force analysis：
As shown in Figure 1：
As shown in Fig. 1 (a), gangboard internal force can be reduced to the swash plate of two ends freely-supported when calculating, shown in such as Fig. 1 (b)；
Area load on swash plate in the form of line load to be transferred on the terraced beam of both sides, such as shown in Fig. 1 (c).
The force analysis of the present embodiment gangboard：
As shown in Figure 2：
As shown in Fig. 2 (a), when setting two girt strips 5 on gangboard, area load is transferred to both sides girt strip first on gangboard
On 5, such as shown in Fig. 2 (b)；
Again by girt strip 5 by line load to be transferred in the form of concentrated force on the bench beam of stair, such as shown in Fig. 2 (c)；
Therefore, to make gangboard effective force, girt strip 5 is arranged at the side of gangboard two so that girt strip 5 serves as the branch of gangboard
Seat.
In the present embodiment, the quantity of girt strip 5 is two or three.
Specifically, the quantity below for girt strip in the present embodiment 5 is that two or three enumerate two kinds of embodiments：
The first alternative in the present embodiment, girt strip 5 is two, and is located at two sides of gangboard lower surface respectively.
Second of alternative in the present embodiment, girt strip 5 is three, wherein a girt strip 5 is located at gangboard lower surface
Centre position, two other girt strip 5 is located at two sides of gangboard lower surface respectively.
Specifically, the selection below for the quantity of girt strip 5 is analyzed：
If the lower section of gangboard body 2 is only with a girt strip 5, gangboard body 2 also can not effective force, and stair easily send out
It is raw to reverse, it is impossible to realize said process, therefore a girt strip 5 should not be set；If three girt strips 5 are selected, preferentially by the first two rib
Beam 5 is arranged on the both sides of gangboard body 2, and the 3rd girt strip 5 is positioned over the centre of gangboard body 2 so that three girt strips 5 it is uniform by
Power, and be transferred to three equally distributed point loadings on the terraced beam of stair, it is usually in gangboard sheet from more than two girt strip 5
Body 2 is wider, in the case that two girt strips 5 can not meet force request；Further, if selection sets more girt strips 5, in order to be able to
The effectively transmission pressure of gangboard body 2, and the uniform effect for undertaking load of each girt strip 5 are enough reached, preferably girt strip 5 is evenly arranged.
It is pointed out that the number of girt strip 5 is more, to mitigating the effect of the deadweight of gangboard body 2 more substantially, therefore will
It is the optimum layout mode for mitigating the deadweight of gangboard body 2 when the number of girt strip 5 is set to two.
In the present embodiment, the cross section of girt strip 5 is quadrilateral structure.
Specifically, it refer to shown in Fig. 7 and Fig. 8, the cross section of girt strip 5 is trapezoidal.
Wherein, it is contemplated that the mechanical characteristic of gangboard (girt strip 5 is trapezium structure, and the length at upper bottom is less than the length of bottom,
When stress, gangboard is by smooth transition after pressure transmission to bottom on girt strip 5 to going to the bottom, and structure is more stablized) and demoulding construction
Convenience (trapezoidal girt strip 5 the demoulding when, can disposably be taken off from longer base to shorter base direction
Mould, is also not easy to block or damage girt strip 5), being shaped as girt strip 5 is trapezoidal.
It is pointed out that the shape of cross section of girt strip 5 is not limited only to quadrilateral structure, can also for triangular structure or
Other polygonized structures, are not just repeated herein.
Embodiment two
As shown in Figure 3 and Figure 6, on the basis of embodiment one, the present embodiment also provides a kind of stair, including the He of pedal 1
Gangboard；Pedal 1 is multiple, and staged is distributed on gangboard body 2.
It is pointed out that the present embodiment provide stair, including gangboard, therefore with gangboard all advantages,
This is not just repeated.
In the present embodiment, filler is provided with pedal 1, the filler is light material block 4, and the outside of light material block 4 is wrapped
It is with concrete layer 3.
Specifically, light material block 4 is triangular structure, and preferably, light material block 4 uses styrofoam.
It is pointed out that due to there is light material block 4 in this scenario, so can not only mitigate the weight of stair,
It is easy to lifting, also a saving concrete amount, realize the purpose of energy-conservation.
In addition, the shape of filler is not limited to triangle, the material of filler is also not necessarily limited to light material block 4, can be with
To be a variety of, it might even be possible to make also can still use concrete material inside hollow tube 7 (shown in reference picture 4), pedal 1 without filler
Material filling.
In the present embodiment, be provided with reinforced frame 6 in concrete layer 3, and reinforced frame 6 stretch into gangboard body 2.
It is pointed out that have reinforced frame 6 in concrete layer 3, this ensure that the intensity of pedal 1, and concrete
Reinforced frame 6 in layer 3 is extend into gangboard body 2, further enhancing the bonding strength of pedal 1 and gangboard body 2.
In the present embodiment, reinforced frame 6 is provided with gangboard body 2；Hole for hoist built-in fitting 8 is additionally provided with pedal 1.
It is pointed out that there is reinforced frame 6 in gangboard body 2, the globality of gangboard body 2 is enhanced, anchor is met
Gu demand.In the present embodiment, concrete layer 3 is formed with gangboard body 2 by one cast.
It is pointed out that concrete layer 3 is formed with gangboard body 2 by one cast, the intensity of stair is improved.
Further, since the other structures of the stair are disclosed in the prior art, just do not repeat herein.
Make further illustrate with reference to the description of this invention in embodiment one and embodiment two：
When the span of gangboard body 2 is 5.16m, the thickness of gangboard body 2 with the position of girt strip 5 is 250mm, can meet and hold
Power and normal use requirement are carried, now, is used for stress smaller part position without the gangboard body 2 of the position of girt strip 5, thickness is 80mm,
The thickness of concrete layer 3 takes 50mm.
The solution of the present invention carries out conceptual design according to stair loading characteristic, and meets holding for specification by arrangement of reinforcement calculating
Carry power and normal use requirement；
Below by using the weight of common scissors ladder and the weight of common double race stair with it is of the invention provide it is new
The weight of prefabricated scissors ladder and the weight of new prefabricated pair of race stair contrasted respectively：
Table 1 lists the weight contrast of common scissors ladder and the novel scissors ladder for using the present invention：
Table 1
Table 2 lists the weight contrast of common double race stair and the new prefabricated pair of race stair for using the present invention：
Table 2
The stair provided according to the data display of Tables 1 and 2, the present invention, deadweight 20% can be reduced than conventional stair
Left and right, can largely reduce the deadweight of stair, improve intensity.Material is reduced, and saves cost.
The construction technology main points of the present invention：
1st, using the prefabricated steel-template of factory process, formwork erection pours stair, to reserve enough casting spaces that vibrates.
2nd, reinforcing bar is using machining, and is manually aided in.
3rd, concrete curing reaches and is stripped after desired strength.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of gangboard, it is characterised in that including gangboard body, and positioned at least two girt strips of its lower surface.
2. gangboard according to claim 1, it is characterised in that the quantity of the girt strip is two or three.
3. gangboard according to claim 2, it is characterised in that the girt strip is two, and is located at respectively under the gangboard
Two sides on surface.
4. gangboard according to claim 2, it is characterised in that the girt strip is three a, wherein girt strip is positioned at described
The centre position of gangboard lower surface, two other girt strip is located at two sides of the gangboard lower surface respectively.
5. the gangboard according to claim any one of 1-4, it is characterised in that the girt strip cross section is quadrilateral structure.
6. a kind of stair, it is characterised in that including the gangboard described in pedal and claim any one of 1-5；
The pedal is multiple, and staged is distributed on the gangboard body.
7. stair according to claim 6, it is characterised in that light material block, the lightweight material are provided with the pedal
Being surrounded outside material block has concrete layer.
8. stair according to claim 7, it is characterised in that reinforced frame, and the steel are provided with the concrete layer
Ledges is stretched into the gangboard body.
9. stair according to claim 8, it is characterised in that reinforced frame is provided with the gangboard body.
10. stair according to claim 9, it is characterised in that the concrete layer passes through integral cast with gangboard body
Formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558886.5A CN107268903A (en) | 2017-07-10 | 2017-07-10 | Gangboard and stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558886.5A CN107268903A (en) | 2017-07-10 | 2017-07-10 | Gangboard and stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268903A true CN107268903A (en) | 2017-10-20 |
Family
ID=60073402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710558886.5A Pending CN107268903A (en) | 2017-07-10 | 2017-07-10 | Gangboard and stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107268903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487561A (en) * | 2018-04-01 | 2018-09-04 | 昆明顺弘水泥制管制品有限公司 | A kind of lightweight large span stair |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848079A1 (en) * | 1978-11-06 | 1980-05-14 | Bruno Heibges | Prefabricated reinforced concrete cellars stairs components - have recesses under step shank ends matching slopes between support beam saw teeth |
| CN2725399Y (en) * | 2004-07-29 | 2005-09-14 | 程渝 | Prestressed concrete T shaped board |
| CN200946349Y (en) * | 2006-09-11 | 2007-09-12 | 郁立方 | Prestress concrete multiple-rib plate |
| CN104712141A (en) * | 2013-12-12 | 2015-06-17 | 五冶集团上海有限公司 | Construction method of cast-in-place reinforced concrete dense ribbed beam floor |
| CN204590456U (en) * | 2015-03-25 | 2015-08-26 | 华南理工大学 | A kind of precast splice type slab type stairway |
| CN205077757U (en) * | 2015-10-30 | 2016-03-09 | 中汇建筑集团有限公司 | Light assembled stair |
| CN205421759U (en) * | 2016-03-29 | 2016-08-03 | 万成粮 | Novel prefabricated staircase |
-
2017
- 2017-07-10 CN CN201710558886.5A patent/CN107268903A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848079A1 (en) * | 1978-11-06 | 1980-05-14 | Bruno Heibges | Prefabricated reinforced concrete cellars stairs components - have recesses under step shank ends matching slopes between support beam saw teeth |
| CN2725399Y (en) * | 2004-07-29 | 2005-09-14 | 程渝 | Prestressed concrete T shaped board |
| CN200946349Y (en) * | 2006-09-11 | 2007-09-12 | 郁立方 | Prestress concrete multiple-rib plate |
| CN104712141A (en) * | 2013-12-12 | 2015-06-17 | 五冶集团上海有限公司 | Construction method of cast-in-place reinforced concrete dense ribbed beam floor |
| CN204590456U (en) * | 2015-03-25 | 2015-08-26 | 华南理工大学 | A kind of precast splice type slab type stairway |
| CN205077757U (en) * | 2015-10-30 | 2016-03-09 | 中汇建筑集团有限公司 | Light assembled stair |
| CN205421759U (en) * | 2016-03-29 | 2016-08-03 | 万成粮 | Novel prefabricated staircase |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487561A (en) * | 2018-04-01 | 2018-09-04 | 昆明顺弘水泥制管制品有限公司 | A kind of lightweight large span stair |
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Application publication date: 20171020 |