CN109518896A - Lightweight assembled folded plate stair - Google Patents
Lightweight assembled folded plate stair Download PDFInfo
- Publication number
- CN109518896A CN109518896A CN201910004141.3A CN201910004141A CN109518896A CN 109518896 A CN109518896 A CN 109518896A CN 201910004141 A CN201910004141 A CN 201910004141A CN 109518896 A CN109518896 A CN 109518896A
- Authority
- CN
- China
- Prior art keywords
- pedal
- stair
- staircase boards
- folded plate
- half space
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims abstract description 14
- 239000004574 high-performance concrete Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 9
- 230000001133 acceleration Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000011374 ultra-high-performance concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The present invention relates to technical field of buildings, disclose a kind of lightweight assembled folded plate stair, comprising: staircase boards and half space；The staircase boards are prefabricated using high performance concrete, the staircase boards are internally provided with framework of steel reinforcement, and the staircase boards include horizontally disposed pedal and vertically arranged vertical plate, and the pedal and the vertical plate are integrally formed, to form the staircase boards, the half space and the pedal are matched.The lightweight assembled folded plate stair, which compare traditional staircase structure, can save material utilization amount 40%~70%；Material utilization amount significantly reduces, and can effectively reduce dead load, to reduce the difficulty of construction such as transport, lifting, support, shortens the construction period；Has many advantages, such as intensity height, fire resisting, anticorrosive, materials are few, construction is simple, the service life is long, maintenance cost is low, the comprehensive cost for reducing engineering construction and using；Anti-seismic performance is excellent.
Description
Technical field
The present invention relates to technical field of buildings, more particularly to a kind of lightweight assembled folded plate stair.
Background technique
Country advocates assembled architecture, low in economic efficiency, the labor intensive of cast-in-situ stair, and financial resources are the time, uneconomical.
Assembled stair make in factory, have product specification, superior in quality feature, while reducing manpower, the time.But existing dress
It is had a single function with formula staircase structure, various scene requirements cannot be met very well, and it is larger to be self-possessed, lift relatively difficult, increasing
The investment of difficulty of construction and manpower and material resources.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of lightweight assembled folded plate stair, it is intended at least the solution prior art or related skill
One of technical problem present in art.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of lightweight assembled folded plate stair, comprising: staircase boards and stop
Cease platform；
The staircase boards are prefabricated using high performance concrete, and the staircase boards are internally provided with framework of steel reinforcement, the stair
Plate includes horizontally disposed pedal and vertically arranged vertical plate, and the pedal and the vertical plate are integrally formed, to form the building
Gangboard, the half space and the pedal match.
Wherein, the half space includes horizontally disposed horizontal part；
The horizontal part upper surface is provided with the splicing slot for installing pedal, and the depth of the splicing slot is greater than described step on
The thickness of plate.
Wherein, the half space further includes vertically arranged support portion；
The support portion upper surface and horizontal part lower end surface integrally connected.
Wherein, the splicing slot is internally provided with multiple connectors for sequentially passing through the splicing slot and the support portion,
Multiple through-holes are provided on the pedal；By the connector and the through-hole to connect the half space and described step on
Plate.
Wherein, the through-hole is provided on the pedal along its length, the diameter of the through-hole is 25~35mm, described
Distance of the center of through-hole away from pedal edge is more than or equal to 50mm.
Wherein, the half space includes the first half space and the second half space；
First half space and the pedal of the staircase boards lower end are slidably connected, second half space and described
The pedal of staircase boards upper end is fixedly connected.
Wherein, the framework of steel reinforcement includes steel bar stress and distribution bar；
The steel bar stress is arranged along the width direction of the pedal；
The distribution bar is arranged in the pedal and the vertical plate junction, length of the distribution bar along the pedal
Direction setting is spent, the distribution bar is arranged vertically with the steel bar stress；
The framework of steel reinforcement is laid in the position inside the staircase boards on the lower, to improve staircase boards stress performance.
Wherein, the diameter of the steel bar stress is 6~16mm, and the spacing between the steel bar stress is 150~250mm,
The diameter of the distribution bar is 4~8mm.
Wherein, the thickness of the pedal and the vertical plate is 45~75mm.
(3) beneficial effect
Compared with prior art, the invention has the following advantages that
A kind of lightweight assembled folded plate stair provided by the invention, the lightweight assembled folded plate stair compare traditional stair knot
Structure can save material utilization amount 40%~70%；Material utilization amount significantly reduces, and can effectively reduce dead load, to reduce fortune
The difficulty of construction such as defeated, lifting, support, shorten the construction period；Staircase boards are prefabricated using high performance concrete simultaneously, have intensity high, resistance to
The advantages that fiery, anticorrosive, materials are few, construction is simple, the service life is long, maintenance cost is low, the synthesis for reducing engineering construction and using
Cost；Anti-seismic performance is excellent.
Detailed description of the invention
Fig. 1 is a kind of lateral sectional view of lightweight assembled folded plate stair of the embodiment of the present invention；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is a kind of top cross-sectional view of lightweight assembled folded plate stair of the embodiment of the present invention；
Fig. 4 is a kind of framework of steel reinforcement distribution schematic diagram of lightweight assembled folded plate stair of the embodiment of the present invention；
In figure: 1- pedal；2- through-hole；3- steel bar stress；4- distribution bar；5- connector；6- half space.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
High performance concrete in the present invention includes but is not limited to Reactive Powder Concrete (RPC), high performance concrete
(HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Fig. 1 is a kind of lateral sectional view of lightweight assembled folded plate stair of the embodiment of the present invention, as shown in Figure 1, comprising: building
Gangboard and half space；
Staircase boards are prefabricated using high performance concrete, and staircase boards are internally provided with framework of steel reinforcement, and staircase boards include horizontal cloth
The pedal 1 and vertically arranged vertical plate set, pedal and vertical plate are integrally formed, to form the staircase boards, half space and pedal
Connection.
Fig. 2 is the partial enlarged view of Fig. 1, as shown in Fig. 2, staircase boards include horizontally disposed pedal and vertically arranged vertical
Plate, staircase boards include muti-piece pedal and muti-piece vertical plate, wherein the length and width of pedal can be selected according to actual needs
It takes, the length and height of vertical plate can be chosen according to actual needs.The length of pedal and the length of vertical plate are identical.Two pieces flat
Capable pedal is attached by vertical plate, and vertical plate is arranged vertically with upper and lower two pieces of parallel pedals simultaneously.Pedal and vertical plate one
Pouring molding, to form the staircase boards.
In the present embodiment, after staircase boards are by pedal and vertical plate successively alternate connection, the upper end of staircase boards is pedal, building
The lower end of gangboard is pedal.
The lightweight assembled folded plate stair, which compare traditional staircase structure, can save material utilization amount 40%~70%；Material utilization amount
Significantly reduce, can effectively reduce dead load, to reduce the difficulty of construction such as transport, lifting, support, shortens the construction period.
In the present embodiment, staircase boards carry out the prefabricated completion of whole factory's formwork by installing framework of steel reinforcement in advance later.
Fig. 4 is a kind of framework of steel reinforcement distribution schematic diagram of lightweight assembled folded plate stair of the embodiment of the present invention, such as Fig. 4 institute
Show, the framework of steel reinforcement being arranged in staircase boards includes steel bar stress 3 and distribution bar 4；Width direction of the steel bar stress along pedal
Setting；In pedal and vertical plate junction, distribution bar is arranged along the length direction of pedal for distribution bar setting, distribution bar with by
Power reinforcing bar is arranged vertically；Framework of steel reinforcement is laid in the position inside staircase boards on the lower, to improve staircase boards stress performance.
Wherein, the diameter of steel bar stress is 6~16mm, and the spacing between steel bar stress is 150~250mm, distribution bar
Diameter be 4~8mm.Preferably, the diameter for being arranged in the steel bar stress in staircase boards is 10mm, the spacing between steel bar stress
For 200mm, the diameter of distribution bar is 6mm.
Wherein, steel bar stress and distribution bar are three-level reinforcing bar.
Further, according to an embodiment of the invention, half space includes horizontally disposed horizontal part；Horizontal part upper surface
It is provided with splicing slot, the depth for splicing slot is greater than the thickness of pedal.
Preferably, the length for splicing slot is identical with the length of pedal, and splicing slot is arranged along the length direction of horizontal part.
Further, according to an embodiment of the invention, half space 6 further includes vertically arranged support portion；On support portion
End face and horizontal part lower end surface integrally connected.
In the present embodiment, the length of support portion and the length of horizontal part are identical, and the width of support portion is less than horizontal part
Width.
In addition, according to an embodiment of the invention, splicing slot, which is internally provided with multiple successively pass perpendicularly through, splices slot and support
The connector 5 in portion is provided with multiple through-holes 2 on pedal；The connection of half space and pedal is realized by connector and through-hole.
Fig. 3 is a kind of top cross-sectional view of lightweight assembled folded plate stair of the embodiment of the present invention, as shown in figure 3, connector 5
It can be connection bolt.For example, pre-buried multiple M16 connection bolts inside splicing slot, connection bolt successively passes perpendicularly through splicing slot
And support portion.After M16 connection bolt passes through the through-hole on pedal, is filled by grouting or tighten nut to realize half space
With the connection of pedal.
In addition, according to an embodiment of the invention, on pedal setting along its length there are two circular through hole, circular through hole
Diameter is 25~35mm, and distance of the circular through hole away from pedal edge is more than or equal to 50mm.Preferably, pedal is along 5 branch position of width
It sets and sets 2 diameters respectively as the circular through hole of 30mm.
In the present embodiment, the position of circular through hole and the position of the connector inside splicing slot correspond on pedal.
In addition, according to an embodiment of the invention, half space includes the first half space and the second half space；First stops
Breath platform and the pedal of staircase boards lower end are slidably connected, and the second half space is fixedly connected with the pedal of staircase boards upper end.
It is understood that the first half space connects bolt by pre-buried 2 M16 connection bolt inside splicing slot
Successively pass perpendicularly through splicing slot and support portion.After M16 connection bolt passes through the corresponding circular through hole on pedal, by twisting
Tight nut is to realize that the first half space and the pedal of staircase boards lower end are slidably connected；And second half space by spelling
Pre-buried 2 M16 connection bolt inside access slot, connection bolt successively pass perpendicularly through splicing slot and support portion.M16 connection bolt passes through
After corresponding circular through hole on pedal, the pedal of the second half space and staircase boards upper end is realized by grouting filling
It is fixedly connected.
In addition, according to an embodiment of the invention, staircase boards are prefabricated using Reactive Powder Concrete (RPC), have intensity it is high,
Fire resisting, it is anticorrosive the advantages that, materials are few, construction is simple, the service life is long, maintenance cost is low, reduce engineering construction and use comprehensive
Close cost.
In the present embodiment, stair plate material includes but is not limited to Reactive Powder Concrete (RPC), high performance concrete
(HPC), ultra-high performance concrete (UHPC), technical fiber enhancing cement-base composite material (ECC).
Further, the thickness of pedal and vertical plate is 45~75mm.Preferably, the thickness of pedal and vertical plate is
60mm。
Displacement structure, stress and comfort level are carried out to lightweight assembled folded plate stair provided in an embodiment of the present invention below
Numerical check.
General simulation checks thinking, calculates load and analog parameter presses least favorable situation value.Model stress considers weight
Power and Load Combination effect.Its load combination factor and standard value are respectively according to " loading code for design of building structures " (GB50009-
2012) 3.2.4, table 5.1.1 value are 1.2 × DL+1.4 × LL=6.8kN/m3。
Being related to material includes: high performance concrete, worm steel muscle HRB400.
Associated analog parameter is mixed according to " Code for design of concrete structures " (GB50010-2010) 4.1,4.2 and high-performance
Solidifying soil material parameter takes least favorable value to draft, as listed in table 1.
1 model parameter value table of table
Stair global displacement and stress are calculated and analyzed using abaqus finite element program.
Unit setting: lightweight assembled folded plate stair are established using the secondary hexahedral element of 20 nodes, maximum mesh width
20mm, encryption part 10mm are divided；HRB400 reinforcing bar is divided using the secondary truss element simulation of 3 nodes, element length 20mm.
Loading environment: gravity is set as physical strength；Combined load vertical distribution permanent, living is in stair tread.
Boundary condition: stair setting in upper end is fixedly connected；Lower end setting is slidably connected.
Calculated result counts as listed in table 2.
2 stair numerical simulation result of table is summarized
The amount of deflection of lightweight assembled folded plate stair is all satisfied " Code for design of concrete structures " (GB50010-2010) 3.4.3
L0/ 250 limit value requirement, wherein l0For the effective span of component.
It is reference, the lightweight assembled with the design value 9.0MPa that material property testing statistics obtains in terms of stair stress
For folded plate stair under the most unfavorable processing condition, maximum stress is respectively less than test value.In terms of reinforcement stresses, meet that " concrete structure is set
Meter specification " (GB50010-2010) 4.2.3 360MPa strength failure criterion.
Staircase structure comfort level checking computations, according to " technical specification for concrete structures of high-rise building " (JGJ3-2010) 3.7.7
Item, building cover structure need to meet comfort level requirement, i.e. the vertical vibration frequency of building cover structure is not preferably less than 3.0Hz, and vertical motion
Acceleration peak value is not to be exceeded 0.05.
The results are shown in Table 3 with acceleration peak value for the minimum vertical motion frequency of present invention design staircase structure.
Wherein, vibration frequency is obtained by abaqus model analysis, and acceleration peak value is according to " Concrete Structures of Tall Building
Technical regulation " calculating of appendix A formula.
The minimum vertical motion frequency of table 3 and acceleration peak value calculated result
| Staircase structure | Vibration frequency/Hz | Acceleration peak value/m/s2 |
| Folded plate type | 25.25 | 0.0058 |
The vibration frequency and acceleration peak value of lightweight assembled folded plate stair are all satisfied " Concrete Structures of Tall Building technology
Regulation " it requires.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of lightweight assembled folded plate stair characterized by comprising staircase boards and half space；The staircase boards use
High performance concrete is prefabricated, and the staircase boards are internally provided with framework of steel reinforcement, the staircase boards include horizontally disposed pedal and
Vertically arranged vertical plate, the pedal and the vertical plate are integrally formed, to form the staircase boards, the half space and described
Pedal matches.
2. lightweight assembled folded plate stair as described in claim 1, which is characterized in that the half space includes horizontally disposed
Horizontal part；The horizontal part upper surface is provided with the splicing slot for installing pedal, and the depth of the splicing slot is greater than described
The thickness of pedal.
3. lightweight assembled folded plate stair as claimed in claim 2, which is characterized in that the half space further includes vertical cloth
The support portion set；The support portion upper surface and horizontal part lower end surface integrally connected.
4. lightweight assembled folded plate stair as claimed in claim 3, which is characterized in that the splicing slot is internally provided with multiple
The connector of the splicing slot and the support portion is sequentially passed through, is provided with multiple through-holes on the pedal；Pass through the connection
Part and the through-hole are to connect the half space and the pedal.
5. lightweight assembled folded plate stair as claimed in claim 4, which is characterized in that be arranged along its length on the pedal
There is the through-hole, the diameter of the through-hole is 25~35mm, and the center of the through-hole is more than or equal to away from the distance at pedal edge
50mm。
6. lightweight assembled folded plate stair as claimed in claim 4, which is characterized in that the half space includes the first rest
Platform and the second half space；
First half space and the pedal of the staircase boards lower end are slidably connected, second half space and the stair
The pedal of plate upper end is fixedly connected.
7. lightweight assembled folded plate stair as described in claim 1, which is characterized in that the framework of steel reinforcement includes steel bar stress
And distribution bar；The steel bar stress is arranged along the width direction of the pedal；Distribution bar setting in the pedal and
The vertical plate junction, the distribution bar are arranged along the length direction of the pedal, the distribution bar and the stress steel
Muscle is arranged vertically；The framework of steel reinforcement is laid in the position inside the staircase boards on the lower, to improve staircase boards stress performance.
8. lightweight assembled folded plate stair as claimed in claim 7, which is characterized in that the diameter of the steel bar stress be 6~
16mm, the spacing between the steel bar stress are 150~250mm, and the diameter of the distribution bar is 4~8mm.
9. lightweight assembled folded plate stair as claimed in any one of claims 1 to 8, which is characterized in that the pedal and described
The thickness of vertical plate is 45~75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004141.3A CN109518896A (en) | 2019-01-03 | 2019-01-03 | Lightweight assembled folded plate stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004141.3A CN109518896A (en) | 2019-01-03 | 2019-01-03 | Lightweight assembled folded plate stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109518896A true CN109518896A (en) | 2019-03-26 |
Family
ID=65797897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910004141.3A Pending CN109518896A (en) | 2019-01-03 | 2019-01-03 | Lightweight assembled folded plate stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109518896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523443A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete assembled light and thin prefabricated staircase and assembling process thereof |
| CN113175168A (en) * | 2021-04-27 | 2021-07-27 | 中国建筑第五工程局有限公司 | Ultra-light toughness stair |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100825268B1 (en) * | 2007-09-18 | 2008-04-25 | 정민선 | Precast stairs structure having thin slab and constructing method for stairway using the same |
| CN102733562A (en) * | 2012-06-28 | 2012-10-17 | 苏州工业园区设计研究院股份有限公司 | Folded plate cantilever stair |
| CN202689384U (en) * | 2012-06-28 | 2013-01-23 | 苏州工业园区设计研究院股份有限公司 | Folded plate cantilevered stairway |
| CN205134792U (en) * | 2015-11-13 | 2016-04-06 | 赤峰力强预制构件有限公司 | Light -duty reinforced concrete prefabricated staircase |
| CN107386548A (en) * | 2017-08-09 | 2017-11-24 | 哈尔滨工业大学深圳研究生院 | A kind of prefabricated assembled light-duty stringer type stairway |
| CN207919935U (en) * | 2017-11-14 | 2018-09-28 | 山东省建筑设计研究院 | A kind of light prefabricated stair of reinforced concrete beam type |
| CN208088708U (en) * | 2018-03-12 | 2018-11-13 | 浙江禾泽都林建筑规划设计有限公司 | A kind of assembled anti-knock stair |
| CN109339220A (en) * | 2018-11-02 | 2019-02-15 | 山东海龙建筑科技有限公司 | Between integrally assembling staircase and its production and construction method |
| CN209780079U (en) * | 2019-01-03 | 2019-12-13 | 中国建筑第五工程局有限公司 | Light assembled folded plate stair |
-
2019
- 2019-01-03 CN CN201910004141.3A patent/CN109518896A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100825268B1 (en) * | 2007-09-18 | 2008-04-25 | 정민선 | Precast stairs structure having thin slab and constructing method for stairway using the same |
| CN102733562A (en) * | 2012-06-28 | 2012-10-17 | 苏州工业园区设计研究院股份有限公司 | Folded plate cantilever stair |
| CN202689384U (en) * | 2012-06-28 | 2013-01-23 | 苏州工业园区设计研究院股份有限公司 | Folded plate cantilevered stairway |
| CN205134792U (en) * | 2015-11-13 | 2016-04-06 | 赤峰力强预制构件有限公司 | Light -duty reinforced concrete prefabricated staircase |
| CN107386548A (en) * | 2017-08-09 | 2017-11-24 | 哈尔滨工业大学深圳研究生院 | A kind of prefabricated assembled light-duty stringer type stairway |
| CN207919935U (en) * | 2017-11-14 | 2018-09-28 | 山东省建筑设计研究院 | A kind of light prefabricated stair of reinforced concrete beam type |
| CN208088708U (en) * | 2018-03-12 | 2018-11-13 | 浙江禾泽都林建筑规划设计有限公司 | A kind of assembled anti-knock stair |
| CN109339220A (en) * | 2018-11-02 | 2019-02-15 | 山东海龙建筑科技有限公司 | Between integrally assembling staircase and its production and construction method |
| CN209780079U (en) * | 2019-01-03 | 2019-12-13 | 中国建筑第五工程局有限公司 | Light assembled folded plate stair |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523443A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete assembled light and thin prefabricated staircase and assembling process thereof |
| CN113175168A (en) * | 2021-04-27 | 2021-07-27 | 中国建筑第五工程局有限公司 | Ultra-light toughness stair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8881485B2 (en) | Wind turbine tower system | |
| CN109518896A (en) | Lightweight assembled folded plate stair | |
| CN109918801A (en) | Scaffold automatically generates and optimization system | |
| CN209369206U (en) | Lightweight assembled folded plate and Cantilever Beams combined staircase | |
| CN209780079U (en) | Light assembled folded plate stair | |
| CN113931313A (en) | Super high-rise core tube horizontal structure construction method | |
| CN108374555A (en) | Girder with rolled steel section en cased in concrete, which pours, to be smash without support hung formwork structure and method | |
| CN206667063U (en) | Prestressing force bellows altitude calibration system in a kind of bridge construction | |
| CN109763563B (en) | Building construction | |
| Nádaský | Steel-concrete composite beams for slim floors–specific design features in scope of steel frames design | |
| CN111794421B (en) | Prefabricated concrete floor assembling method | |
| KR101240581B1 (en) | End support apparatus using cross- shaped tendon anchorage plate, prestressed concrete beam, and construction method using the same | |
| CN111797449B (en) | Method for judging reasonable height of layered pouring concrete beam | |
| CN109518897A (en) | Lightweight assembled folded plate and Cantilever Beams combined staircase | |
| CN111379436A (en) | Masonry filler wall with reinforcing structure and masonry filler wall reinforcing method | |
| CN111236632A (en) | Construction method of heavy bracket and profile steel combined supporting system for super-thick top plate | |
| CN217205526U (en) | Industrial and civil building wall reinforcing device | |
| CN213477191U (en) | Large-span strength beam and welding tool | |
| CN113430945B (en) | Design method of assembly type bracket, bracket and construction method of bridge 0# block | |
| CN212105249U (en) | Brickwork infilled wall with reinforced structure | |
| CN211286215U (en) | Assembled coincide floor of removable support | |
| CN109915659B (en) | Anti-seismic comprehensive support and hanger and building with same | |
| CN110318783B (en) | Optimization method of thick-roof arch-structure closed steel bar framework | |
| CN111910766A (en) | Section steel structure of giant large-span stiff concrete and construction method | |
| CN112360697A (en) | Steel pipe concrete truss combination formula tower section of thick bamboo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |