CN109138499A - A kind of precast stair regularization construction protecting rack - Google Patents
A kind of precast stair regularization construction protecting rack Download PDFInfo
- Publication number
- CN109138499A CN109138499A CN201811257099.8A CN201811257099A CN109138499A CN 109138499 A CN109138499 A CN 109138499A CN 201811257099 A CN201811257099 A CN 201811257099A CN 109138499 A CN109138499 A CN 109138499A
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- upright bar
- operating platform
- upright
- bars
- bar
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 230000009194 climbing Effects 0.000 claims abstract description 13
- 230000004308 accommodation Effects 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
Abstract
A kind of precast stair regularization construction protecting rack, including protection frame body, operating platform and climbing stair.Protecting frame body includes multiple upright bars and multiple cross bars, multiple upright bars include the first upright bar that top is located at same level height, second upright bar, third upright bar and the 4th upright bar, the bottom end of first upright bar and the 4th upright bar is set to staircase half space, the bottom end of second upright bar and third upright bar is respectively arranged on upper layer stair landing and lower layer's stair landing, multiple cross bars include in horizontally disposed four collar cross bars and four foundation ring cross bars, four collar cross bars are connected to the top of two adjacent upright bars, four foundation ring cross bars are connected at the different height of the bottom end of two adjacent upright bars.Operating platform is set in the accommodation space that protection frame body surrounds, and side is connected in two adjacent upright bars.Climbing stair is set in accommodation space, and one end is connected to one of four collar cross bars, and the other end is connected to one of four foundation ring cross bars.
Description
Technical field
The present invention relates to architectural engineering construction technique fields, construct in particular to a kind of precast stair regularization anti-
Retaining frame.
Background technique
With the rapid development of modern architecture industry and the rapid proliferation of Green Architecture Conception, construction party is to green construction
Very high requirement is proposed, specific aspect is implemented to, exactly saves land, saves proposed in " green building assessment standard "
It can, save the requirement of material, water-saving and environmental protection and comfortable space.
In building construction process, construction speed is improved frequently with precast stair.Since precast stair lifting must be
Bridging piece beam concrete can be lifted after reaching bearing capacity intensity, the time takes around 7 days or so, and staircase periphery is cut
Power wall reinforcement installation can be carried out installing after 1 day, and reinforcement installation check and accept well after need at once carry out template installation, mould
Plate, which installs consolidation time, to be completed within 3 days, and therefore, layer 2-3 is often delayed in the installation of precast stair, was caused pre- in no lifting
In the case where stair processed, the security protection hidden danger of staircase is more, and the operating platform that can not allow worker to stand.
Currently, construction site is generally constructed and protected by the way of setting up steel pipe frame, 1. biographies are suffered from the drawback that
The protection method overall stability of system is poor, and safety does not ensure, accident easily occurs, and construction efficiency is not high；2. traditional
Operating platform needs every layer to set up primary, is removed again after the completion of use, dismounts very cumbersome, and it is lower to set up efficiency, waste
Manpower and financial resources influences construction speed；3. traditional mode of setting up is needed using steel tube fastener, and steel tube fastener can be to prefabricated building
Ladder causes more serious damage.
It would therefore be highly desirable to propose a kind of precast stair regularization construction protecting rack, to solve the above problem.
Summary of the invention
The purpose of the present invention is to provide a kind of precast stair regularization construction protecting rack, can by protection, construct and climb
It rises three kinds of functions to be integrated in one, meets that protective frame safety and firmness, worker operating space be big, easy access comfortably requires.
The embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of precast stair regularization construction protecting rack, and it is neighbouring to ride upon double race stair
Between two layers of stair landing and staircase half space.The precast stair regularization construction protecting rack includes protective frame
Body, operating platform and climbing stair.The protection frame body includes multiple upright bars and multiple cross bars, and the multiple upright bar includes top
Positioned at the first upright bar of same level height, the second upright bar, third upright bar and the 4th upright bar, first upright bar and the described 4th
The bottom end of upright bar is set to the staircase half space, and the bottom end of second upright bar and the third upright bar is respectively arranged on upper layer
Stair landing and lower layer's stair landing, the multiple cross bar include in horizontally disposed four collar cross bars and four
Foundation ring cross bar, four collar cross bars are respectively fixedly connected in the top of two adjacent upright bars, four foundation rings
Cross bar is respectively fixedly connected at the different height of the bottom end of two adjacent upright bars.The operating platform is set to described
In the accommodation space that protection frame body surrounds, and side is fixedly connected in two adjacent upright bars.The climbing stair is set
It is placed in the accommodation space, and one end is fixedly connected on one of described four collar cross bars, the other end is fixedly connected on described
One of four foundation ring cross bars.
Optionally, in preferred embodiments of the present invention, first upright bar and the 4th upright bar height are equal.
Optionally, in preferred embodiments of the present invention, second upright bar, the first upright bar and the third upright bar height
It spends incremented by successively.
Optionally, in preferred embodiments of the present invention, the edge of the operating platform is equipped with fence.
Optionally, in preferred embodiments of the present invention, the operating platform is additionally provided with multiple to be set along short transverse interval
The auxiliary cross bar set.
Optionally, in preferred embodiments of the present invention, the quantity of the auxiliary cross bar is two.
Optionally, in preferred embodiments of the present invention, the protection frame body further includes multiple diagonal braces, the multiple diagonal brace
One end be fixedly connected in four upright bars, the other end is fixedly connected on the bottom surface of the operating platform.
Optionally, in preferred embodiments of the present invention, the quantity of the operating platform is four.
Optionally, in preferred embodiments of the present invention, four operating platforms are respectively the first operating platform, second
Operating platform, third operating platform and the 4th operating platform, first operating platform and second operating platform are set to institute
The middle part of protection frame body is stated, the third operating platform and the 4th operating platform are set to the top of the protection frame body.
Optionally, in preferred embodiments of the present invention, the one of first operating platform and the third operating platform
Side is fixedly connected in first upright bar and second upright bar, second operating platform and the 4th operating platform
Side is fixedly connected in the third upright bar and the 4th upright bar.
The beneficial effect of the embodiment of the present invention includes:
This precast stair regularization construction protecting rack passes through the upright bar that is not completely equivalent using multiple height and multiple in water
The cross bar of flat setting, sufficiently combines the environmental quality of construction site, rests in two layers adjacent of stair landing and staircase
Set up out between platform one be in rectangular parallelepiped structure protection frame body, and setting operation is flat in the accommodation space that surrounds of protection frame body
Platform and climbing stair by protection, are constructed and three kinds of functions of climbing are integrated in one, and it is empty to meet protective frame safety and firmness, worker operation
Between big, easy access comfortably require.This precast stair regularization construction protecting rack structure is simple, has and is easy to set up, be convenient for
It using, reusable advantage, solves tradition in the prior art and sets up mode and dismount cumbersome, be easy to cause precast stair
Badly damaged problem.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of precast stair regularization construction protecting rack provided in an embodiment of the present invention.
Icon: 100- precast stair regularization construction protecting rack；1- protects frame body；11- upright bar；The first upright bar of 111-；
The second upright bar of 112-；113- third upright bar；The 4th upright bar of 114-；12- cross bar；121,121A- collar cross bar；122,122A,
The foundation ring 122B, 122C, 122D- cross bar；13- diagonal brace；2- operating platform；The first operating platform of 21-；The second operating platform of 22-；
23- third operating platform；The 4th operating platform of 24-；25- fence；26- assists cross bar；3- climbing stair.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be being connected inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of precast stair regularization construction protecting rack 100, rides upon double race stair
Between neighbouring two layers of stair landing and staircase half space.Precast stair regularization construction protecting rack 100 wraps
Include protection frame body 1, operating platform 2 and climbing stair 3.Precast stair regularization construction protecting rack 100, can be by protection, construction
Three kinds of functions are integrated in one with climbing, and meet that protective frame safety and firmness, worker operating space be big, easy access comfortably requires.
It should be noted that double run between two layers neighbouring of stair landing of stair has staircase rest flat
Platform, therefore, the height of lower layer's stair landing, staircase half space and upper layer stair landing are incremented by successively, in turn
Construction site forms difference in height fixed between half space.Precast stair regularization construction protecting rack 100 is exactly fully
Using and combine the environmental quality of construction site, taken between adjacent two layers of stair landing and staircase half space
Set out one be in rectangular parallelepiped structure protection frame body 1.
Specifically, protection frame body 1 includes multiple upright bars 11 and multiple cross bars 12, and multiple upright bars 11 include top positioned at same
The first upright bar 111, the second upright bar 112, third upright bar 113 and the 4th upright bar 114 of level height, the first upright bar 111 and the 4th
The bottom end of upright bar 114 is set to staircase half space, and the bottom end of the second upright bar 112 and third upright bar 113 is respectively arranged on upper floor
Terraced half space and lower layer's stair landing, multiple cross bars 12 include in horizontally disposed four collar cross bars 121 and four
Foundation ring cross bar 122, four collar cross bars 121 are respectively fixedly connected in the top of two adjacent upright bars 11, four foundation ring cross bars
122 are respectively fixedly connected at the different height of the bottom end of two adjacent upright bars 11.
It should be noted that due to having fixed difference in height between half space, it sets up protection frame body 1 and uses
The height of upright bar 11 set on different half spaces differ, 11 height of upright bar set on identical half space is equal.I.e. first is vertical
Bar 111 and 114 height of the 4th upright bar are equal, and the height of the first upright bar 111, the second upright bar 112 and third upright bar 113 differs.
Specifically, since the second upright bar 112 is set to minimum lower layer's stair landing, the second upright bar 112 is set to intermediate building
Half space between ladder, third upright bar 113 are set to highest upper layer half space, therefore, the second upright bar 112, the first upright bar 111
It is incremented by successively with the height of third upright bar 113.The upright bar 11 of the different height used in conjunction with construction site environmental quality designs,
Material cost has been saved to a certain extent.
It should also be noted that, in the present embodiment, since the top of each upright bar 11 is located at same level height, and bottom
The level height at end is not exactly the same, so the collar cross bar 121 being fixedly connected between two adjacent upright bars 11 is in same
Level height, i.e. four collar cross bars 121 can be enclosed a square top beam, between two adjacent upright bars 11
The level height that the foundation ring cross bar 122 being fixedly connected is in is not exactly the same, i.e. four foundation ring cross bars 122 be respectively fixedly connected in
It is (please high with specific reference to the level of foundation ring cross bar shown in Fig. 1 122A, 122B, 122C, 122D at the different height of the bottom end of upright bar 11
Degree).It, can be with although the level height of 113 bottom end of third upright bar is highest one in the level height of each 11 bottom end of upright bar
Four foundation ring cross bars 122 are fixedly connected in the bottom end of third upright bar 113, but the fixed company at this time in other upright bars 11
The level height for connecing position is higher, entire that frame body 1 is protected to will appear not firm enough the situation in bottom.In conjunction with construction site environment spy
Point and use differentiated levels foundation ring cross bar 122 design, strengthen instead protection frame body 1 bottom stability, four
Foundation ring cross bar 122 at different levels for protection frame body 1 support is provided, while also solve due to pad concentrate and
The problem of strength reduction that may cause.
Operating platform 2 is set in the accommodation space that protection frame body 1 surrounds, and side is fixedly connected on adjacent two and stands
On bar 11.
In the present embodiment, the quantity of operating platform 2 is four.Four operating platforms 2 respectively the first operating platform 21,
Second operating platform 22, third operating platform 23 and the 4th operating platform 24, the first operating platform 21 and the second operating platform 22
Set on the middle part of protection frame body 1, third operating platform 23 and the 4th operating platform 24 are set to the top for protecting frame body 1, to adapt to
The construction demand of differentiated levels.In the present embodiment, it is contemplated that the reason of lower layer's stair landing, the second operating platform
22 level height is slightly below the level height of the first operating platform 21, and the level height of third operating platform 23 is equal to the 4th behaviour
Make the level height of platform 24.Certainly, in other embodiments, the quantity of operating platform 2 and specific level height can be with
It is adjusted flexibly.
Specifically, the side of the first operating platform 21 and third operating platform 23 is fixedly connected in 111 He of the first upright bar
The side of second upright bar 112, the second operating platform 22 and the 4th operating platform 24 is fixedly connected in third upright bar 113 and the 4th
Upright bar 114.
In the present embodiment, in order to reinforce the stability of operating platform 2, protection frame body 1 further includes multiple diagonal braces 13, multiple
One end of diagonal brace 13 is fixedly connected in four upright bars 11, and the other end is fixedly connected on the bottom surface of operating platform 2.
In the present embodiment, in order to ensure worker operating platform 2 construct when personal safety, the edge of operating platform 2
Equipped with fence 25.Operating platform 2 is additionally provided with two along the spaced auxiliary cross bar 26 of short transverse, to further increase operation
The safety of platform 2.
Climbing stair 3 is set in accommodation space, and one end is fixedly connected on one of four collar cross bars 121 (in this reality
Apply in example, i.e. collar cross bar 121A shown in Fig. 1), the other end is fixedly connected on one of four foundation ring cross bars 122 (in the present embodiment
In, i.e. foundation ring cross bar 122D shown in Fig. 1), to be set at the spatial position reserved among four operating platforms 2.
As described above, upright bar of the precast stair regularization construction protecting rack 100 by being not completely equivalent using multiple height
11 and it is multiple be in horizontally disposed cross bar 12, sufficiently combine the environmental quality of construction site, it is flat in adjacent two layers of stair rest
Set up out between platform and staircase half space one be in rectangular parallelepiped structure protection frame body 1, and in the receiving that surrounds of protection frame body 1
Operating platform 2 and climbing stair 3 are set in space, by protection, constructs and three kinds of functions of climbing are integrated in one, meets protective frame peace
It consolidates entirely, worker operating space is big, easy access comfortably requires.Precast stair regularization 100 structures of construction protecting rack are simple,
Have the advantages that be easy to set up, be easy to use, be reusable, solve tradition in the prior art set up mode dismount it is cumbersome,
It is easy to cause precast stair badly damaged problem.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of precast stair regularization construction protecting rack, ride upon two layers neighbouring of stair landing of double race stair and
Between staircase half space, which is characterized in that the precast stair regularization construction protecting rack includes:
Protect frame body, including multiple upright bars and multiple cross bars, the multiple upright bar includes that top is located at same level height
The bottom end of one upright bar, the second upright bar, third upright bar and the 4th upright bar, first upright bar and the 4th upright bar is set to the building
The bottom end of half space between ladder, second upright bar and the third upright bar is respectively arranged on upper layer stair landing and lower floor
Terraced half space, the multiple cross bar include in horizontally disposed four collar cross bars and four foundation ring cross bars, four tops
Circle cross bar is respectively fixedly connected in the top of two adjacent upright bars, and four foundation ring cross bars are respectively fixedly connected in institute
At the different height for stating the bottom end of two adjacent upright bars；
Operating platform is set in the accommodation space that surrounds of protection frame body, and side is fixedly connected on described adjacent two
In a upright bar；And
Climbing stair is set in the accommodation space, and one end is fixedly connected on one of described four collar cross bars, the other end
It is fixedly connected on one of described four foundation ring cross bars.
2. precast stair regularization construction protecting rack according to claim 1, which is characterized in that first upright bar and institute
It is equal to state the 4th upright bar height.
3. precast stair regularization construction protecting rack according to claim 2, which is characterized in that second upright bar,
The height of one upright bar and the third upright bar is incremented by successively.
4. precast stair regularization construction protecting rack according to claim 1, which is characterized in that the side of the operating platform
Edge is equipped with fence.
5. precast stair regularization construction protecting rack according to claim 4, which is characterized in that the operating platform is also set
Have multiple along the spaced auxiliary cross bar of short transverse.
6. precast stair regularization construction protecting rack according to claim 5, which is characterized in that the number of the auxiliary cross bar
Amount is two.
7. precast stair regularization construction protecting rack according to claim 1, which is characterized in that the protection frame body also wraps
Multiple diagonal braces are included, one end of the multiple diagonal brace is fixedly connected in four upright bars, and the other end is fixedly connected in institute
It states on the bottom surface of operating platform.
8. precast stair regularization construction protecting rack according to claim 1, which is characterized in that the number of the operating platform
Amount is four.
9. precast stair regularization construction protecting rack according to claim 8, which is characterized in that four operating platforms
Respectively the first operating platform, the second operating platform, third operating platform and the 4th operating platform, first operating platform and
Second operating platform is set to the middle part of the protection frame body, and the third operating platform and the 4th operating platform are set to
The top of the protection frame body.
10. precast stair regularization construction protecting rack according to claim 9, which is characterized in that first operation is flat
The side of platform and the third operating platform is fixedly connected in first upright bar and second upright bar, second operation
The side of platform and the 4th operating platform is fixedly connected in the third upright bar and the 4th upright bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257099.8A CN109138499A (en) | 2018-10-26 | 2018-10-26 | A kind of precast stair regularization construction protecting rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257099.8A CN109138499A (en) | 2018-10-26 | 2018-10-26 | A kind of precast stair regularization construction protecting rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109138499A true CN109138499A (en) | 2019-01-04 |
Family
ID=64810200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811257099.8A Pending CN109138499A (en) | 2018-10-26 | 2018-10-26 | A kind of precast stair regularization construction protecting rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138499A (en) |
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| EP0713942A1 (en) * | 1994-11-25 | 1996-05-29 | JAPAN STEELS INTERNATIONAL Inc. | Temporary stairway with landing and method for arrangement thereof |
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| CN106401210A (en) * | 2016-11-21 | 2017-02-15 | 成都建筑工程集团总公司 | Tool type vertical traffic stair for assembled building elevator shaft |
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| CN106760451A (en) * | 2016-11-21 | 2017-05-31 | 成都建筑工程集团总公司 | The combination constructing method thereof that the collapsible operation of assembled architecture construction and discharging platform are lifted with tool type stairs |
| CN206267026U (en) * | 2016-11-30 | 2017-06-20 | 马卫明 | A kind of bridge construction elevating safety ladder |
| WO2017191391A1 (en) * | 2016-05-02 | 2017-11-09 | Entrepose Echafaudages | Module for creating a spiral staircase for a building site, assembly comprising at least one such module and staircase for a building site comprising at least one such assembly |
| CN208966075U (en) * | 2018-10-26 | 2019-06-11 | 中建五局华东建设有限公司 | A kind of precast stair regularization construction protecting rack |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0713942A1 (en) * | 1994-11-25 | 1996-05-29 | JAPAN STEELS INTERNATIONAL Inc. | Temporary stairway with landing and method for arrangement thereof |
| US20080017448A1 (en) * | 2004-05-27 | 2008-01-24 | Hayes Richard Sr | Stairtower and method for erecting the same |
| KR20070009061A (en) * | 2005-07-15 | 2007-01-18 | 이앤디몰건축사사무소 주식회사 | Simultaneous working type installation method for stair hall equipped prefabricated stair using pc form |
| EP2692964A2 (en) * | 2012-08-01 | 2014-02-05 | Wilhelm Layher Verwaltungs-GmbH | Modular stair scaffold tower and stair scaffold module |
| CN204781872U (en) * | 2015-06-11 | 2015-11-18 | 中建一局集团第六建筑有限公司 | Regularization post reinforcement operation platform |
| CN205296892U (en) * | 2015-11-27 | 2016-06-08 | 武汉市汉阳市政建设集团公司 | A merogenesis stair and up -downgoing passageway for deep foundation pit construction is current from top to bottom |
| WO2017191391A1 (en) * | 2016-05-02 | 2017-11-09 | Entrepose Echafaudages | Module for creating a spiral staircase for a building site, assembly comprising at least one such module and staircase for a building site comprising at least one such assembly |
| CN106088636A (en) * | 2016-06-08 | 2016-11-09 | 中国十七冶集团有限公司 | A kind of canalization detachable stair safety protection frame |
| CN206053393U (en) * | 2016-09-20 | 2017-03-29 | 中铁建设集团有限公司 | One kind can have enough to meet the need steel stair operating platform |
| CN106760451A (en) * | 2016-11-21 | 2017-05-31 | 成都建筑工程集团总公司 | The combination constructing method thereof that the collapsible operation of assembled architecture construction and discharging platform are lifted with tool type stairs |
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