CN110107038A - A kind of anti-seismic concrete precast stair - Google Patents
A kind of anti-seismic concrete precast stair Download PDFInfo
- Publication number
- CN110107038A CN110107038A CN201910314825.3A CN201910314825A CN110107038A CN 110107038 A CN110107038 A CN 110107038A CN 201910314825 A CN201910314825 A CN 201910314825A CN 110107038 A CN110107038 A CN 110107038A
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- China
- Prior art keywords
- connector
- stair
- plate body
- seismic
- lower connector
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The present invention relates to concrete prefabricated stairs fields, more particularly, to a kind of anti-seismic concrete precast stair, including stair ontology, the both ends of stair ontology are equipped with anti-seismic structure, stair ontology is connect by anti-seismic structure with landing, the anti-seismic structure includes upper connector, lower connector and link block, upper connector is bolted with lower connector, it is fixedly connected at the top of bolt with upper connector, stud base runs through lower connector, bolt is worn to the first spring is cased on the part below lower connector, and the first spring resists lower connector upwards；The lower surface of upper connector is equipped with first slope.Under earthquake or other shock conditions, no matter stair ontology relatively moves in the horizontal direction with landing, or relatively moves in vertical direction, is both not easy to bump against impaired；Anti-seismic structure is set in stair ontology, improves the structural stability of stair ontology itself, can prevent longer stair ontology in earthquake from being sheared and being broken when moving.
Description
Technical field
The present invention relates to concrete prefabricated stairs fields, more particularly, to a kind of anti-seismic concrete precast stair.
Background technique
In building construction process traditional at present, most of construction of stair is using cast-in-place structural, and traditional is cast-in-place
Staircase structure scene formwork is difficult, and construction joint quality is not easy to control, and the amount of labour used and timber consumption are big, continuous with construction industry
Innovation and development, the continuous of the market price of labour power are risen, and cause the increase of building cost therewith, and construction industry is inevitable gradually to production
Industry, batch production direction develop, as fabricated Building technology is more and more mature and perfect, construction industry uses assembled mould
Formula can be more and more, a part that precast stair can not be lacked as fabricated construction, will necessarily large-scale promotion application.
However, to promote and apply concrete prefabricated stairs will solve the critical issue of antidetonation deformation and temperature deformation, according to
Multiple test, precast stair using the fixed one end sliding in one end design, be meet the optimal design of earthquake resistant design code, and
Solve the problems, such as that fixing end support becomes the key of the technology.
Notification number is that the patent of invention of CN103132660A discloses a kind of fixing end support of concrete prefabricated stairs, is led to
Cross pre-buried tie bar and joint bar on the L-type overlap joint platform of cast-in-place concrete stair beam, the pre-buried drawknot on concrete prefabricated stairs
Muscle and complete stair concrete tongue-and-groove seam, concrete prefabricated stairs be mounted on L-type overlap joint platform seat slurry on, L-type overlap platform with
Adhesive layer is perfused in ribbet between concrete prefabricated stairs.But earthquake makes concrete prefabricated stairs and cast-in-situ stair platform
When relatively moving in the horizontal direction, the two still can generate collision, cause concrete prefabricated stairs or cast-in-situ stair platform impaired.
Summary of the invention
The object of the present invention is to provide a kind of anti-seismic concrete precast stairs, have and work as stair ontology and landing phase
It is not easy to bump against impaired advantage when to movement.
Foregoing invention purpose of the invention has the technical scheme that a kind of prefabricated building of anti-seismic concrete
Ladder, including stair ontology, the both ends of stair ontology are equipped with anti-seismic structure, and stair ontology is connected by anti-seismic structure and landing
It connecing, the anti-seismic structure includes upper connector, lower connector and link block, and upper connector is bolted with lower connector,
It is fixedly connected at the top of bolt with upper connector, stud base runs through lower connector, and bolt is worn to the part below lower connector
It is cased with the first spring, the first spring resists lower connector upwards；The lower surface of upper connector is equipped with first slope, lower connector
Upper surface is equipped with the second slope, and the angle on first slope and the second slope is acute angle, and connector is equipped with and first slope cooperates
The first inclined-plane, the second inclined-plane with the cooperation of the second slope, connector inserts between connector and lower connector；Stair ontology
Lower connector is fixed in one end, is fixedly connected with block on corresponding landing, the stair ontology other end is fixedly connected with block, corresponding building
Fixed lower connector on terraced platform.
By using above-mentioned technical proposal, when stair ontology relatively moves in the horizontal direction with landing, link block
Depth in insertion between connector and lower connector increases, the first spring thrust upward to lower connector make upper connector with
Lower connector clamps, to generate resistance to the link block of insertion, seismic energy a part, which is converted on suffered by landing, to be connected
The frictional resistance (energy in generating) of junctor and lower connector, a part is converted into the potential energy of the first spring deformation, and seismic energy is surplus
Remaining seldom a part is converted into the kinetic energy of landing, therefore can reduce landing and be inserted between upper connector and lower connector
Speed, prevent landing with stair ontology from bumping against.
When stair ontology and landing are when vertical direction relatively moves, both ends one end Zhong Zongyou of stair ontology can be with
Activity, seismic energy are largely converted into the potential energy of the first spring of stair ontology both ends, and fraction is converted into the dynamic of stair ontology
Can, therefore the amplitude that stair ontology is shaken up and down can be reduced, avoid landing and stair ontology from bumping against.
To sum up, no matter stair ontology relatively moves in the horizontal direction with landing, or relatively moves in vertical direction, two
Person is not easy to bump against impaired.
Landing increases connector at a distance from lower connector, and the first spring plays the lower connector of buffering and absorption
The effect of seismic energy, only the seismic energy of remaining very little is acted in the form of upward pulling force on stair ontology,
Preferably, the anti-seismic structure also is provided in the stair ontology.
By using above-mentioned technical proposal, the structural stability of stair ontology itself is improved, can be prevented longer in earthquake
Stair ontology sheared and be broken when moving.
Preferably, there is adjacent first step and second step, first step and second step in the stair ontology
It disconnects, the anti-seismic structure is set between first step and second step；Link block is fixed on first step, on second step
It is fixed with lower connector.
By using above-mentioned technical proposal, anti-seismic structure is set between first step and second step, antidetonation knot can be used
Structure replaces the step between first step and second step, keeps the basic configuration of stair ontology constant.
Preferably, the upper connector includes horizontally disposed first plate body and the second plate body for being vertically arranged, the first plate
Body is located at the top of upper connector, and several first floors, the bottom of several first floors are connected between the first plate body and the second plate body
Face molds first slope.
By using above-mentioned technical proposal, upper connector is constituted using the first plate body, the second plate body and several first floors,
It not only can guarantee that upper connector has good structural strength, moreover it is possible to the weight of connector in mitigation, to mitigate entire stair
The weight of ontology.
Preferably, the lower connector includes third plate body and the 4th plate body that is vertically arranged, and third plate body is located at lower company
The bottom of junctor, is connected with several second floors between third plate body and the 4th plate body, the top surface of several second floors molds
Second slope.
By using above-mentioned technical proposal, lower connector is constituted using third plate body, the 4th plate body and several second floors,
It not only can guarantee that lower connector has good structural strength, moreover it is possible to the weight for mitigating lower connector, to mitigate entire stair
The weight of ontology.
Preferably, the bolt wears the top of supreme connector, and the upper surface of upper connector is equipped with counterbore, at the top of bolt
Nut is located in counterbore, and grouting is poured flat in counterbore.
By using above-mentioned technical proposal, the stability maintenance of bolt Yu upper connector is improved.
Preferably, the lateral surface of second plate body is close to be equipped with long slab, and long slab is equipped with circular hole, and link block side is stretched out
Reinforcing bar, reinforcing bar pass through upper connector and protrude into circular hole, and the part that reinforcing bar is located in circular hole is cased with second spring, is fixed with baffle,
One end of second spring is butted on baffle, and the other end of second spring is butted on connector.
By using above-mentioned technical proposal, the cooperation of reinforcing bar and baffle that landing side is stretched out can limit stair ontology
With the relative movement distance of landing in the horizontal direction, thus prevent link block between upper connector and lower connector take off
Out, second spring can also buffer and store part seismic energy.
Preferably, landing (2) side is equipped with the slot for the insertion of upper connector.
By using above-mentioned technical proposal, slot expands the range that connector moves horizontally, and makes stair ontology and building
Terraced platform can relatively move bigger distance in the horizontal direction will not still bump against.
In conclusion advantageous effects of the invention are as follows:
1. under earthquake or other shock conditions, no matter stair ontology relatively moves in the horizontal direction with landing, or vertical
Direction relative movement is both not easy to bump against impaired；
2. anti-seismic structure is arranged in stair ontology, the structural stability of stair ontology itself is improved, can be prevented longer in earthquake
Stair ontology sheared and be broken when moving.
Detailed description of the invention
Fig. 1 is the overall structure diagram of anti-seismic concrete precast stair；
Fig. 2 is the anti-seismic structure front view of anti-seismic concrete precast stair；
Fig. 3 is the structural schematic diagram of upper connector；
Fig. 4 is the structural schematic diagram of lower connector；
Fig. 5 is the explosive view of anti-seismic structure；
Fig. 6 is the portion A enlarged drawing in Fig. 1.
In figure, 1, stair ontology；1a, first step；1b, second step；2, landing；2a, slot；3, upper connection
Body；3a, first slope；31, the first plate body；31a, counterbore；32, the second plate body；33, the first floor；4, lower connector；4a,
Two slopes；41, third plate body；42, the 4th plate body；43, the second floor；5, link block；5a, the first inclined-plane；5b, the second inclined-plane；
6, bolt；7, the first spring；8, long slab；8a, circular hole；9, reinforcing bar；10, second spring；11, baffle；12, lantern ring.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: Fig. 1 is a kind of anti-seismic concrete precast stair disclosed by the invention, including stair ontology 1, stair ontology
1 center and both ends are equipped with anti-seismic structure, and the both ends of stair ontology 1 are connect by anti-seismic structure with landing 2.
As shown in Fig. 2, above-mentioned anti-seismic structure is made of upper connector 3, lower connector 4 and link block 5, upper connector 3 with
Lower connector 4 is connected by bolt 6.The lower surface of upper connector 3 is equipped with first slope 3a, and the upper surface of lower connector 4 is equipped with
The angle of second slope 4a, first slope 3a and the second slope 4a are acute angle；Link block 5 inserts in connector 3 and lower connector 4
Between, link block 5 is equipped with the first inclined-plane 5a cooperated with first slope 3a, the second inclined-plane 5b with the second slope 4a cooperation.
As shown in Figure 1,2 side of landing forms the slot 2a for the insertion of upper connector 3, slot 2a expands company
The range that junctor 3 moves horizontally makes stair ontology 1 and landing 2 that can relatively move bigger distance in the horizontal direction still not
It can bump against.
As shown in figure 3, upper connector 3 is integrally formed by mutually perpendicular first plate body 31 and the second plate body 32, installing
In good anti-seismic structure, the first plate body 31 is horizontally disposed, the second plate body 32 is vertically arranged.First plate body 31 is located at upper connector 3
Top, several first floors 33 are fixedly connected between the first plate body 31 and the second plate body 32, several first floors 33 are along upper company
The length direction of junctor 3 is placed equidistant with, and the bottom surface combination forming of all first floors 33 goes out first slope 3a.
As shown in Fig. 2, the lateral surface of the second plate body 32 is close to be equipped with vertical long slab 8, the vertical side of long slab 8 and step
Shape is identical.5 side of link block is pierced by a placing of reinforcement 9, and when link block 5 and the integrated molding of stair ontology 1, reinforcing bar 9 is stair
The structure muscle of ontology 1, when link block 5 and the integrated molding of landing 2, reinforcing bar 9 is the structure muscle of landing 2.
As shown in figure 5, long slab 8 is equipped with circular hole 8a, reinforcing bar 9 passes through upper connector 3 and protrudes into circular hole 8a, and reinforcing bar 9 is located at
Part in circular hole 8a is cased with second spring 10, is fixed with baffle 11, and one end of second spring 10 is butted on baffle 11, the second bullet
The other end of spring 10 is butted on connector 3.
In conjunction with Fig. 4 and Fig. 6, lower connector 4 is integrally formed by third plate body 41 and the 4th plate body 42, in mounted antidetonation
In structure, third plate body 41 is obliquely installed, and the 4th plate body 42 is vertically arranged, and third plate body 41 is located at the bottom of lower connector 4, not
When being shaken, the lower surface of third plate body 41 is flushed with the lower surface of stair ontology 1.Between third plate body 41 and the 4th plate body 42
Several second floors 43 are fixedly connected with, several second floors 43 are placed equidistant with along the length direction of lower connector 4, and all second
The top surface combination forming of floor 43 goes out the second slope 4a.
As shown in fig. 6, wearing the top of supreme connector 3 at the top of bolt 6, the upper surface of upper connector 3 has counterbore 31a,
The nut of bolt 6 is located in counterbore 31a, and flat (flushing with upper 3 upper surface of connector), the bottom of bolt 6 are poured in grouting in counterbore 31a
Through lower connector 4, bolt 6 is worn to the part of lower 4 lower section of connector and is cased with the first spring 7, and the end of bolt 6 is fixed with spiral shell
Mother, the bottom end of the first spring 7 is butted on nut, top is butted on lower connector 4.Can also upper connector 3 and lower connector 4 it
Between bolt 6 on be spirally connected nut, so that nut is close to the inner surface of upper connector 3, be fixedly secured bolt 6 with upper connector 3.Also
A lantern ring 12(can be covered on the bolt 6 below lower connector 4 see Fig. 2), the top surface of lantern ring 12 and the bottom surface of lower connector 4 are matched
It closes, the bottom surface of lantern ring 12 is horizontal, and the top of the first spring 7 is butted on the bottom surface of lantern ring 12, and lantern ring 12 can make the anti-work of the first spring 7
Lower connector 4 is firmly acted on vertically.
As shown in fig. 6, there is adjacent first step 1a and second step 1b in stair ontology 1, first step 1a and the
Two step 1b are disconnected, and anti-seismic structure is specific to arrange are as follows: link block 5 takes shape between first step 1a and second step 1b
On first step 1a, lower connector 4 is fixed on second step 1b.The shape of anti-seismic structure and the shape of step are suitable, antidetonation
Structure can also exercise stepfunction.
As shown in Figure 1, installation site of the anti-seismic structure at 1 both ends of stair ontology are as follows: the fixed lower connection in 1 one end of stair ontology
Body 4 is fixedly connected with block 5 on corresponding landing 2；1 other end of stair ontology is fixedly connected with block 5, on corresponding landing 2
Fixed lower connector 4；Remaining part in anti-seismic structure arranges according to the relative position with lower connector 4, link block 5, and
And link block 5 and stair ontology 1, landing 2 are integrally formed.
The implementation principle of the present embodiment are as follows: when stair ontology 1 and landing 2 relatively move in the horizontal direction, connection
The depth that block 5 is inserted between upper connector 3 and lower connector 4 increases, and the first spring 7 thrust upward to lower connector 4 makes
Connector 3 and lower connector 4 clamp, to generate resistance to the link block 5 of insertion, it is flat that seismic energy a part is converted into stair
The frictional resistance (energy in generating) of upper connector 3 and lower connector 4 suffered by platform 2, a part is converted into the gesture of 7 deformation of the first spring
Can, the remaining seldom a part of seismic energy is converted into the kinetic energy of landing 2, therefore can reduce and connect in the insertion of landing 2
Speed between body 3 and lower connector 4 prevents landing 2 with stair ontology 1 from bumping against.
When stair ontology 1 and landing 2 are when vertical direction relatively moves, both ends one end Zhong Zongyou of stair ontology 1
Can be movable, seismic energy is largely converted into the potential energy of 1 the first spring of both ends 7 of stair ontology, and fraction is converted into stair sheet
The kinetic energy of body 1, therefore the amplitude of about 1 stair ontology shake can be reduced, avoid landing 2 and stair ontology 1 from bumping against.
To sum up, no matter stair ontology 1 relatively moves in the horizontal direction with landing 2, or relatively moves in vertical direction,
It is both not easy to bump against impaired.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of anti-seismic concrete precast stair, including stair ontology (1), the both ends of stair ontology (1) are equipped with anti-seismic structure,
Stair ontology (1) is connect by anti-seismic structure with landing (2), it is characterised in that:
The anti-seismic structure includes upper connector (3), lower connector (4) and link block (5), upper connector (3) and lower connector
(4) it is connected by bolt (6), is fixedly connected at the top of bolt (6) with upper connector (3), lower connector is run through in bolt (6) bottom
(4), bolt (6) is worn to being cased with the first spring (7) on the part below lower connector (4), and the first spring (7) resists lower company upwards
Junctor (4)；
The lower surface of upper connector (3) is equipped with first slope (3a), and the upper surface of lower connector (4) is equipped with the second slope (4a),
The angle of first slope (3a) and the second slope (4a) are acute angle, and link block (5) is equipped with the cooperated with first slope (3a)
One inclined-plane (5a), the second inclined-plane (5b) with the second slope (4a) cooperation, link block (5) insert in connector (3) and lower connection
Between body (4)；
Stair ontology (1) one end is fixed lower connector (4), is fixedly connected with block (5) on corresponding landing (2), stair ontology
(1) other end is fixedly connected block (5), on corresponding landing (2) fixed lower connector (4).
2. a kind of anti-seismic concrete precast stair according to claim 1, it is characterised in that: in the stair ontology (1)
It also is provided with the anti-seismic structure.
3. a kind of anti-seismic concrete precast stair according to claim 2, it is characterised in that: in the stair ontology (1)
With adjacent first step (1a) and second step (1b), first step (1a) and second step (1b) are disconnected, the antidetonation
Structure is set between first step (1a) and second step (1b)；Link block (5), second step are fixed on first step (1a)
Lower connector (4) are fixed on (1b).
4. a kind of anti-seismic concrete precast stair according to claim 1, it is characterised in that: upper connector (3) packet
The second plate body (32) for including horizontally disposed first plate body (31) and being vertically arranged, the first plate body (31) are located at upper connector (3)
Top is connected with several first floors (33) between the first plate body (31) and the second plate body (32), several first floors (33)
Bottom surface molds first slope (3a).
5. a kind of anti-seismic concrete precast stair according to claim 1, it is characterised in that: lower connector (4) packet
The 4th plate body (42) for including third plate body (41) and being vertically arranged, third plate body (41) are located at the bottom of lower connector (4), third
Several second floors (43) are connected between plate body (41) and the 4th plate body (42), the top surface of several second floors (43) molds
Second slope (4a).
6. a kind of anti-seismic concrete precast stair according to claim 1, it is characterised in that: the bolt (6) is worn supreme
The upper surface of the top of connector (3), upper connector (3) is equipped with counterbore (31a), and the nut at the top of bolt (6) is located at counterbore
In (31a), grouting is poured flat in counterbore (31a).
7. a kind of anti-seismic concrete precast stair according to claim 4, it is characterised in that: second plate body (32)
Lateral surface is close to be equipped with long slab (8), and long slab (8) is equipped with circular hole (8a), and reinforcing bar (9) are stretched out in link block (5) side, reinforcing bar (9)
It is protruded into circular hole (8a) across upper connector (3), the part that reinforcing bar (9) is located in circular hole (8a) is cased with second spring (10), consolidates
Surely have baffle (11), one end of second spring (10) is butted on baffle (11), and the other end of second spring (10) is butted on connection
On body (3).
8. a kind of anti-seismic concrete precast stair according to claim 1, it is characterised in that: landing (2) side
Face is equipped with the slot (2a) for upper connector (3) insertion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314825.3A CN110107038B (en) | 2019-04-18 | 2019-04-18 | Anti-seismic concrete prefabricated staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314825.3A CN110107038B (en) | 2019-04-18 | 2019-04-18 | Anti-seismic concrete prefabricated staircase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107038A true CN110107038A (en) | 2019-08-09 |
| CN110107038B CN110107038B (en) | 2020-12-08 |
Family
ID=67485821
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314825.3A Active CN110107038B (en) | 2019-04-18 | 2019-04-18 | Anti-seismic concrete prefabricated staircase |
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| Country | Link |
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| CN (1) | CN110107038B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593500A (en) * | 2019-09-27 | 2019-12-20 | 安徽建筑大学城市建设学院 | Safe and firm assembled earthquake-resistant stair |
| CN112482676A (en) * | 2020-11-20 | 2021-03-12 | 广州金辉建设集团有限公司 | Prefabricated staircase and installation process thereof |
| CN114232917A (en) * | 2021-12-22 | 2022-03-25 | 莱芜凤凰建工集团有限公司 | Prefabricated concrete stair assembly structure and assembly method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001081923A (en) * | 1999-09-09 | 2001-03-27 | Tsuru Gakuen | Stair structure |
| CN203475737U (en) * | 2013-08-16 | 2014-03-12 | 威海奥华钢结构有限公司 | Prefabricated damping building stair structure |
| CN109025104A (en) * | 2018-09-27 | 2018-12-18 | 安徽品小院建筑科技有限公司 | A kind of assembled architecture modularization staircase structure and its construction technology |
| CN208718256U (en) * | 2018-07-13 | 2019-04-09 | 苏州瑞至通建筑科技有限公司 | A kind of damping reinforcement type precast stair |
-
2019
- 2019-04-18 CN CN201910314825.3A patent/CN110107038B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081923A (en) * | 1999-09-09 | 2001-03-27 | Tsuru Gakuen | Stair structure |
| CN203475737U (en) * | 2013-08-16 | 2014-03-12 | 威海奥华钢结构有限公司 | Prefabricated damping building stair structure |
| CN208718256U (en) * | 2018-07-13 | 2019-04-09 | 苏州瑞至通建筑科技有限公司 | A kind of damping reinforcement type precast stair |
| CN109025104A (en) * | 2018-09-27 | 2018-12-18 | 安徽品小院建筑科技有限公司 | A kind of assembled architecture modularization staircase structure and its construction technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593500A (en) * | 2019-09-27 | 2019-12-20 | 安徽建筑大学城市建设学院 | Safe and firm assembled earthquake-resistant stair |
| CN112482676A (en) * | 2020-11-20 | 2021-03-12 | 广州金辉建设集团有限公司 | Prefabricated staircase and installation process thereof |
| CN114232917A (en) * | 2021-12-22 | 2022-03-25 | 莱芜凤凰建工集团有限公司 | Prefabricated concrete stair assembly structure and assembly method thereof |
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| Publication number | Publication date |
|---|---|
| CN110107038B (en) | 2020-12-08 |
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