CN111485686A - Light sandwich reinforced concrete stair structure and construction method - Google Patents
Light sandwich reinforced concrete stair structure and construction method Download PDFInfo
- Publication number
- CN111485686A CN111485686A CN201910072352.0A CN201910072352A CN111485686A CN 111485686 A CN111485686 A CN 111485686A CN 201910072352 A CN201910072352 A CN 201910072352A CN 111485686 A CN111485686 A CN 111485686A
- Authority
- CN
- China
- Prior art keywords
- stair
- light
- steel bars
- reinforced concrete
- concrete
- 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
Images
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
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
-
- 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
- E04F2011/0214—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 cast in situ
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a light sandwich reinforced concrete stair structure, belongs to the technical field of stairs, and solves the problems that the existing fabricated building stair is too heavy and difficult to install, and the stability of the stair cannot be ensured by an installation method; the technical characteristics are as follows: the stair is obliquely arranged, a plurality of floor plates are uniformly distributed on the stair, the connecting cavity is formed in the bottom of the stair, the inclination angle of the connecting cavity is the same as that of the stair, the connecting cavity is internally of a hollow structure, light sandwich concrete is filled in the connecting cavity, and connecting steel bars are reserved on the floor plates in the connecting cavity; is favorable for popularization and application.
Description
Technical Field
The invention relates to the technical field of stairs, in particular to a light sandwich reinforced concrete stair structure and a construction method.
Background
The stairs are used as members for vertical traffic between floors in the building, are used for traffic communication between floors and when the height difference is large, and are also required to be arranged in multi-storey and high-rise buildings which are provided with elevators and escalators as main vertical traffic means; high-rise buildings, although using elevators as the main vertical transport means, still need to keep staircases for escape in case of fire.
The stair consists of a stair section, a platform and an enclosure component of continuous stairs, the horizontal projection distance between the lowest step and the highest step of the stair is the stair length, and the total height of the stairs is the stair height; in the construction process of the fabricated building, the stair needs to be prefabricated, and the mounting method of the fabricated building stair adopted at the current stage can not ensure the stability of the stair, so that the light sandwich reinforced concrete stair structure and the construction method are provided.
Disclosure of Invention
The invention aims to provide a light sandwich reinforced concrete stair structure which comprises a stair, a connecting cavity and floor plates, wherein the stair is obliquely arranged, the floor plates are uniformly distributed on the stair, the connecting cavity is arranged at the bottom of the stair, the inclination angle of the connecting cavity is the same as that of the stair, the connecting cavity is internally of a hollow structure, light sandwich concrete is filled in the connecting cavity, and connecting steel bars are reserved in the floor plates in the connecting cavity, so that the problem that the stability of the stair cannot be ensured by the existing assembly type building stair installation method is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a light sandwich reinforced concrete stair structure, includes stair, connection chamber and floor board, the stair slope sets up, and a plurality of floor boards of equipartition on the stair, and the bottom of stair sets up the connection chamber, and the inclination of connecting the chamber is the same with stair, and the inside of connecting the chamber is hollow structure, connects the intracavity and fills light sandwich concrete, it is equipped with the floor board and reserves connecting reinforcement to connect the intracavity.
As a further scheme of the invention: the upper left side of stair sets up the truss backup pad, installs the ladder beam in the truss backup pad, goes up to connect through buried lifting hole mechanism between ladder beam and the stair, sets up down the truss backup pad below the right side of stair, installs down the ladder beam in the truss backup pad down, is connected through buried lifting hole mechanism in between ladder beam and the stair down.
As a still further scheme of the invention: the lower ladder beam is vertically arranged and filled with light sandwich concrete, a plurality of lower plate top steel bars are horizontally laid in the lower truss supporting plate, the lower plate top steel bars are connected through lower trusses, the left ends of the lower plate top steel bars are connected with floor plates in a reserved connection steel bar anchoring mode, the upper ladder beam is vertically arranged and filled with the light sandwich concrete, a plurality of upper plate top steel bars are horizontally laid in the upper truss supporting plate, the upper plate top steel bars are connected through upper trusses in a reserved connection steel bar mode, and the right ends of the upper plate top steel bars are connected with the floor plates in a reserved connection steel bar anchoring mode.
As a still further scheme of the invention: the embedded lifting hole mechanism comprises embedded lifting holes and embedded reserved insertion bars, the embedded lifting holes are circumferentially arranged on the embedded lifting hole mechanism, a plurality of embedded reserved insertion bars are horizontally arranged on the left side of the embedded lifting hole mechanism, and the number of the embedded lifting holes is four.
A light sandwich reinforced concrete stair construction method based on the light sandwich reinforced concrete stair structure comprises the following steps:
s1, mounting a floor plate on the upper part of the stair, then enabling reserved connecting steel bars of the floor plate to penetrate through the connecting cavity, and injecting light sandwich concrete into the connecting cavity;
s2, respectively paving lower plate top steel bars in the lower truss support plate and the upper truss support plate, and respectively injecting light sandwich concrete into the lower truss support plate and the upper truss support plate;
s3, binding and connecting the lower truss support plate and the lower ladder beam, binding and connecting the upper truss support plate and the upper ladder beam, and then respectively anchoring the lower ladder beam and the upper ladder beam with the stairs;
s4, after anchoring is finished, pouring light sandwich concrete at the joints of the stairs and the lower ladder beam and the stairs and the upper ladder beam to reduce the weight of the stairs, and spraying a cement-based concrete hardening agent on the outer surface of the light sandwich concrete to improve the surface hardness of the stairs.
In conclusion, the beneficial effects of the invention are as follows: the light sandwich reinforced concrete stair structure manufactured by the invention has the advantages of light weight, high surface strength, stable structure, low cost and convenient and fast construction method operation; is favorable for popularization and application.
Drawings
Fig. 1 is a schematic structural view of the staircase.
Fig. 2 is a schematic structural diagram of the buried lifting hole mechanism of the invention.
Fig. 3 is a partially enlarged schematic view of a in fig. 1.
In the figure: 1-stairs, 2-connecting cavities, 3-floor slab reserved connecting steel bars, 4-floor slabs, 5-lower truss supporting plates, 6-lower ladder beams, 7-upper truss supporting plates, 8-upper ladder beams, 9-lower slab top steel bars, 10-upper slab top steel bars, 11-lower truss reserved steel bars, 12-upper truss reserved steel bars, 13-embedded hoisting hole mechanisms, 14-embedded hoisting holes and 15-embedded reserved inserted bars.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 and 3, in the embodiment of the invention, the light sandwich reinforced concrete stair structure comprises a stair 1, a connecting cavity 2 and floor plates 4, wherein the stair 1 is obliquely arranged, a plurality of floor plates 4 are uniformly distributed on the stair 1, the connecting cavity 2 is arranged at the bottom of the stair 1, the inclination angle of the connecting cavity 2 is the same as that of the stair 1, the connecting cavity 2 is of a hollow structure, and light sandwich concrete is filled in the connecting cavity 2;
the floor plate reserved connecting steel bars 3 are arranged in the connecting cavity 2, and the strength of the connecting cavity 2 can be enhanced due to the arrangement of the floor plate reserved connecting steel bars 3;
an upper truss support plate 7 is arranged at the upper left of the stair 1, an upper ladder beam 8 is arranged on the upper truss support plate 7, and the upper ladder beam 8 is connected with the stair 1 through an embedded lifting hole mechanism 13;
a lower truss supporting plate 5 is arranged at the lower right of the stair 1, a lower stair beam 6 is arranged on the lower truss supporting plate 5, and the lower stair beam 6 is connected with the stair 1 through an embedded lifting hole mechanism 13;
the lower ladder beam 6 is vertically arranged, the lower ladder beam 6 is filled with light sandwich concrete, a plurality of lower plate top steel bars 9 are horizontally laid in the lower truss support plate 5, the lower plate top steel bars 9 are connected through lower truss reserved steel bars 11, the left end of each lower plate top steel bar 9 is in anchoring connection with a floor plate reserved connecting steel bar 3, and the lower plate top steel bars 9 and the lower truss reserved steel bars 11 work in a matched mode to ensure the stability of the stair 1;
go up the vertical setting of terraced roof beam 8, and go up 8 intussuseptions of terraced roof beam and pack light sandwich concrete, go up the tiling of 7 water in the truss backup pad and establish a plurality of upper plate top reinforcing bars 10, reserve reinforcing bar 12 through the upper truss between the upper plate top reinforcing bar 10 and connect, the right-hand member of upper plate top reinforcing bar 10 is reserved with the floor board and is connected the 3 anchors of connecting bar, and upper plate top reinforcing bar 10 and upper truss reserve reinforcing bar 12 cooperation work can guarantee stair 1's stability.
Example 2
As shown in fig. 1 to 3, in the embodiment of the invention, the light sandwich reinforced concrete stair structure comprises a stair 1, a connecting cavity 2 and floor plates 4, wherein the stair 1 is obliquely arranged, a plurality of floor plates 4 are uniformly distributed on the stair 1, the connecting cavity 2 is arranged at the bottom of the stair 1, the inclination angle of the connecting cavity 2 is the same as that of the stair 1, the connecting cavity 2 is of a hollow structure, and light sandwich concrete is filled in the connecting cavity 2;
the floor plate reserved connecting steel bars 3 are arranged in the connecting cavity 2, and the strength of the connecting cavity 2 can be enhanced due to the arrangement of the floor plate reserved connecting steel bars 3;
an upper truss support plate 7 is arranged at the upper left of the stair 1, an upper ladder beam 8 is arranged on the upper truss support plate 7, and the upper ladder beam 8 is connected with the stair 1 through an embedded lifting hole mechanism 13;
a lower truss supporting plate 5 is arranged at the lower right of the stair 1, a lower stair beam 6 is arranged on the lower truss supporting plate 5, and the lower stair beam 6 is connected with the stair 1 through an embedded lifting hole mechanism 13;
the lower ladder beam 6 is vertically arranged, the lower ladder beam 6 is filled with light sandwich concrete, a plurality of lower plate top steel bars 9 are horizontally laid in the lower truss support plate 5, the lower plate top steel bars 9 are connected through lower truss reserved steel bars 11, the left end of each lower plate top steel bar 9 is in anchoring connection with a floor plate reserved connecting steel bar 3, and the lower plate top steel bars 9 and the lower truss reserved steel bars 11 work in a matched mode to ensure the stability of the stair 1;
go up the vertical setting of terraced roof beam 8, and go up 8 intussuseptions of terraced roof beam and pack light sandwich concrete, go up the tiling of 7 water in the truss backup pad and establish a plurality of upper plate top reinforcing bars 10, reserve reinforcing bar 12 through the upper truss between the upper plate top reinforcing bar 10 and connect, the right-hand member of upper plate top reinforcing bar 10 is reserved with the floor board and is connected the 3 anchors of connecting bar, and upper plate top reinforcing bar 10 and upper truss reserve reinforcing bar 12 cooperation work can guarantee stair 1's stability.
The embedded lifting hole mechanism 13 comprises an embedded lifting hole 14 and embedded reserved insertion ribs 15, the embedded lifting hole 14 is circumferentially arranged on the embedded lifting hole mechanism 13, and a plurality of embedded reserved insertion ribs 15 are horizontally arranged on the left side of the embedded lifting hole mechanism 13;
the number of the embedded lifting holes 14 is four.
Example 3
A light sandwich reinforced concrete stair construction method based on the light sandwich reinforced concrete stair structure of embodiment 2 comprises the following steps:
s1, mounting a floor plate 4 on the upper part of the stair 1, then enabling the reserved connecting steel bars 3 of the floor plate to penetrate through the connecting cavity 2, and injecting light sandwich concrete into the connecting cavity 2;
s2, respectively paving lower plate top steel bars 9 in the lower truss support plate 5 and the upper truss support plate 7, fixing the lower plate top steel bars 9 through the lower truss reserved steel bars 11, and then respectively injecting light sandwich concrete into the lower truss support plate 5 and the upper truss support plate 7;
s3, the lower truss support plate 5 is bound and connected with the lower ladder beam 6, the upper truss support plate 7 is bound and connected with the upper ladder beam 8, and then the lower ladder beam 6 and the upper ladder beam 8 are respectively anchored with the stairs 1;
s4, after anchoring is finished, pouring light sandwich concrete at the joints of the stairs 1 and the lower stair beams 6 and the stairs 1 and the upper stair beams 8 to reduce the weight of the stairs, and spraying a cement-based concrete hardening agent on the outer surface of the light sandwich concrete to improve the surface hardness of the stairs.
In conclusion, the beneficial effects of the invention are as follows: the light sandwich reinforced concrete stair structure has the advantages of light weight, high surface strength, stable structure, low cost and convenient construction method operation; is favorable for popularization and application.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are only for the convenience of description of the invention and to simplify the description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a light sandwich reinforced concrete stair structure, includes stair (1), connects chamber (2) and floor board (4), and stair (1) slope sets up, and a plurality of floor boards of equipartition (4) on stair (1), its characterized in that, the bottom of stair (1) sets up connects chamber (2), and the inclination of connecting chamber (2) is the same with stair (1), and the inside of connecting chamber (2) is hollow structure, packs light sandwich concrete in connecting chamber (2).
2. A light-weight sandwich reinforced concrete stair structure according to claim 1, characterized in that floor slab reserved connecting steel bars (3) are arranged in the connecting cavity (2).
3. The stair structure with the light-weight sandwich reinforced concrete as claimed in claim 2, wherein an upper truss support plate (7) is arranged at the upper left of the stair (1), an upper ladder beam (8) is mounted on the upper truss support plate (7), and the upper ladder beam (8) is connected with the stair (1) through an embedded lifting hole mechanism (13).
4. The light sandwich reinforced concrete stair structure according to claim 3, wherein a lower truss support plate (5) is arranged at the lower right of the stair (1), a lower stair beam (6) is arranged on the lower truss support plate (5), and the lower stair beam (6) is connected with the stair (1) through an embedded lifting hole mechanism (13).
5. The stair structure with the light sandwich reinforced concrete as claimed in claim 4, wherein the lower stair beams (6) are vertically arranged, the lower stair beams (6) are filled with the light sandwich concrete, a plurality of lower plate top steel bars (9) are horizontally arranged in the lower truss supporting plates (5), the lower plate top steel bars (9) are connected through lower truss reserved steel bars (11), and the left ends of the lower plate top steel bars (9) are connected with the floor plate reserved steel bars (3) in an anchoring manner.
6. A light-weight sandwich reinforced concrete stair structure according to claim 5, wherein the upper stair beams (8) are vertically arranged, light-weight sandwich concrete is filled in the upper stair beams (8), a plurality of upper plate top steel bars (10) are horizontally arranged in the upper truss supporting plates (7), the upper plate top steel bars (10) are connected through upper truss reserved steel bars (12), and the right ends of the upper plate top steel bars (10) are connected with the floor plate reserved connecting steel bars (3) in an anchoring manner.
7. The stair structure with the light-weight sandwich reinforced concrete according to claim 6, wherein the embedded lifting hole mechanisms (13) comprise embedded lifting holes (14) and embedded reserved insertion ribs (15), the embedded lifting holes (14) are circumferentially arranged on the embedded lifting hole mechanisms (13), and a plurality of embedded reserved insertion ribs (15) are horizontally arranged on the left sides of the embedded lifting hole mechanisms (13).
8. A light-weight sandwich reinforced concrete stair structure according to claim 7, characterized in that the number of the embedded lifting holes (14) is four.
9. A light-weight sandwich reinforced concrete stair construction method based on the light-weight sandwich reinforced concrete stair structure of claim 8 is characterized by comprising the following steps:
s1, mounting a floor plate (4) on the upper part of the stair (1), then enabling a reserved connecting steel bar (3) of the floor plate to penetrate through the connecting cavity (2), and injecting light sandwich concrete into the connecting cavity (2);
s2, respectively paving lower plate top steel bars (9) in the lower truss support plate (5) and the upper truss support plate (7), and then respectively injecting light sandwich concrete into the lower truss support plate (5) and the upper truss support plate (7);
s3, binding and connecting a lower truss support plate (5) and a lower ladder beam (6), binding and connecting an upper truss support plate (7) and an upper ladder beam (8), and then respectively anchoring the lower ladder beam (6) and the upper ladder beam (8) with the stairs (1);
s4, after anchoring is finished, pouring light sandwich concrete at the joints of the stair (1) and the lower stair beam (6) and the joints of the stair (1) and the upper stair beam (8) to reduce the weight of the stair, and spraying a cement-based concrete hardening agent on the outer surface of the light sandwich concrete to improve the surface hardness of the stair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072352.0A CN111485686A (en) | 2019-01-25 | 2019-01-25 | Light sandwich reinforced concrete stair structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072352.0A CN111485686A (en) | 2019-01-25 | 2019-01-25 | Light sandwich reinforced concrete stair structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111485686A true CN111485686A (en) | 2020-08-04 |
Family
ID=71812201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910072352.0A Pending CN111485686A (en) | 2019-01-25 | 2019-01-25 | Light sandwich reinforced concrete stair structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111485686A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100715000B1 (en) * | 2001-12-28 | 2007-05-09 | 니폰 라이트 메탈 컴퍼니 리미티드 | Stairway |
| CN202899481U (en) * | 2012-05-24 | 2013-04-24 | 北京城建五建设工程有限公司 | Fast-assembled concrete stair |
| CN103790295A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Reinforced concrete stair structure and construction method thereof |
| CN106150001A (en) * | 2015-04-28 | 2016-11-23 | 重庆建工住宅建设有限公司 | A kind of fabricated assembly overall stair construction method |
| CN107842152A (en) * | 2017-11-28 | 2018-03-27 | 西安方平建筑工程有限公司 | A kind of lightweight assembled stair and construction method |
| CN208056513U (en) * | 2018-03-19 | 2018-11-06 | 保定市建筑设计院有限公司 | A kind of structural system of assembly concrete stair |
| 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 |
-
2019
- 2019-01-25 CN CN201910072352.0A patent/CN111485686A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100715000B1 (en) * | 2001-12-28 | 2007-05-09 | 니폰 라이트 메탈 컴퍼니 리미티드 | Stairway |
| CN202899481U (en) * | 2012-05-24 | 2013-04-24 | 北京城建五建设工程有限公司 | Fast-assembled concrete stair |
| CN103790295A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Reinforced concrete stair structure and construction method thereof |
| CN106150001A (en) * | 2015-04-28 | 2016-11-23 | 重庆建工住宅建设有限公司 | A kind of fabricated assembly overall stair construction method |
| CN107842152A (en) * | 2017-11-28 | 2018-03-27 | 西安方平建筑工程有限公司 | A kind of lightweight assembled stair and construction method |
| 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 |
| CN208056513U (en) * | 2018-03-19 | 2018-11-06 | 保定市建筑设计院有限公司 | A kind of structural system of assembly concrete stair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201217898Y (en) | Concrete prefabricated stairs | |
| CN111576619B (en) | Production method of high-strength concrete post-cast assembled frame system | |
| CN217079457U (en) | A monospar formula reinforced concrete stair for in subway station | |
| CN111236416A (en) | Prefabricated reinforced concrete structure house and installation method thereof | |
| CN213390912U (en) | Steel-concrete shock attenuation stair | |
| CN212656384U (en) | High-strength concrete connecting piece, high-strength concrete post-cast assembled frame system and support frame | |
| CN217000874U (en) | Overhanging supporting die steel platform with large overhanging structure | |
| CN111485686A (en) | Light sandwich reinforced concrete stair structure and construction method | |
| CN216552442U (en) | Prefabricated staircase and cast-in-place shear force wall connection structure | |
| CN111042430A (en) | Four-dimensional tenon fourth of twelve earthly branches structure brick and exempt from to tear open type of pouring stand | |
| CN106760500B (en) | Template supporting structure for construction of reserved hole top cover | |
| CN210976057U (en) | Novel assembled vestibule of elevator is installed additional to energy-efficient outer wall | |
| CN112324066B (en) | Beamless and columnless stair and construction method | |
| KR0171873B1 (en) | Constructive method of a high building | |
| CN115324104A (en) | Permanent and temporary combined assembly type station and construction method thereof | |
| CN215442784U (en) | Prefabricated assembled stair | |
| CN111794547A (en) | Transfer stair widening structure and transfer stair widening construction method | |
| CN112726942A (en) | Concrete prefabricated shear wall structure with sandwich steel plates and construction method | |
| CN112854702A (en) | Large-span silo roof construction platform and erection method | |
| CN220814619U (en) | Frame type prefabricated stair assembling structure | |
| CN216616208U (en) | Connection node of prefabricated component of assembled | |
| CN214498134U (en) | Split type prefabricated assembled stair | |
| CN216690149U (en) | Connection structure of assembled prefabricated staircase and cast-in-place wall section | |
| CN215978152U (en) | Connection structure of coincide ladder roof beam and prefabricated stair | |
| CN221399968U (en) | Assembled stair horse way device for building construction |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200804 |