CN114892906A - Stair assembling structure and assembling method - Google Patents
Stair assembling structure and assembling method Download PDFInfo
- Publication number
- CN114892906A CN114892906A CN202210484902.1A CN202210484902A CN114892906A CN 114892906 A CN114892906 A CN 114892906A CN 202210484902 A CN202210484902 A CN 202210484902A CN 114892906 A CN114892906 A CN 114892906A
- Authority
- CN
- China
- Prior art keywords
- plate
- baffle
- concrete
- stair
- steel plate
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 19
- 239000011148 porous material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- E04F11/09—Tread-and-riser units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a stair assembling structure and an assembling method, wherein the stair assembling structure comprises the following components: a stepped steel plate; the baffle plates are vertically arranged on the outer side of each vertical plate, the top surfaces of the baffle plates are higher than the upper surfaces of the horizontal plates, and the height of the baffle plates can be adjusted; the side plates are arranged on two sides of the step-shaped steel plate along the step extending direction; the concrete pouring layer is arranged on each horizontal plate of the stepped steel plate; and the concrete smearing layer is arranged on one side of each baffle, which is far away from the vertical plate. When the stair assembling structure is applied, concrete is directly poured on each horizontal plate after the stair-shaped steel plates are built, and a formed concrete pouring layer is used for treading; the arrangement of the baffle plates and the side plates limits the concrete pouring process, concrete is prevented from overflowing, and the integrity of the concrete pouring device can be improved due to the arrangement of the concrete smearing layer. The invention does not need to dismantle the step-shaped steel plate, and the concrete and the step-shaped steel plate are solidified into a whole, thereby having stable structure and convenient construction.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a stair assembling structure and a stair assembling method.
Background
The stairway is used as a main vertical traffic and a main channel for emergency evacuation of the building, and has important influence on normal use and emergency evacuation of the whole building. The stair is generally formed by pouring concrete, various templates are required to be erected according to the size of the stair in design before pouring, and after the concrete is poured and solidified, the templates are disassembled to obtain the needed stair.
The erection and the removal of the template need to be completed on site, a large number of scaffolds are required to be used as supports when the template is erected, the scaffolds need to be removed before the template is removed, and the workload is heavy. In addition, for some sites with small operation area, the construction and the removal of the template are more difficult, the labor amount is large, the requirement on the operation level of construction workers is higher, and the construction cost of the stair rises along with the continuous rising of the market labor price. In addition, the size of the template of the stair in the prior art is fixed, and the height of the stair cannot be flexibly adjusted according to requirements in the building process.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, in the first aspect, the invention provides a stair assembling structure, and the height of a stair can be flexibly adjusted according to requirements in the building process.
In a second aspect, the invention provides a stair assembling method, a large number of scaffolds are not needed, a step-shaped steel plate is not needed to be dismantled, and labor is saved.
A stair construction according to a first aspect, comprising:
the step-shaped steel plate is formed by splicing a plurality of horizontal plates and a plurality of vertical plates;
the baffle is vertically arranged on the outer side of the vertical plate, the length of the baffle is equal to the width of the vertical plate, the top surface of the baffle is higher than the upper surface of the horizontal plate, and the height of the baffle can be adjusted;
the side plates are arranged on two sides of the stepped steel plate along the extending direction of the steps;
the concrete pouring layer is arranged on each horizontal plate;
and the concrete smearing layer is arranged on one side of each baffle, which is far away from the vertical plate.
The stair assembling structure provided by the embodiment of the invention at least has the following technical effects: when the stair assembling structure is applied, concrete is directly poured on each horizontal plate after the stair-shaped steel plates are built, and a formed concrete pouring layer is used for treading; the baffle and the side plates are arranged to limit the concrete during pouring, so that the concrete is prevented from overflowing, and the integrity of the concrete pouring device can be improved by arranging the concrete smearing layer. The invention does not need to dismantle the step-shaped steel plate, and the concrete and the step-shaped steel plate are solidified into a whole, thereby having stable structure and convenient construction. According to the invention, the height of the baffle can be adjusted, so that the stair-climbing anti-collision device can be suitable for buildings of stairs with different height sizes, has a wide application range, and does not need to manufacture baffles with different heights.
According to some embodiments of the invention, the top surface of the side plate is inclined and the inclination angle is parallel to the extension direction of the step.
According to some embodiments of the invention, the side plate is provided with a plurality of holes extending downwards from the top surface for inserting the balustrade.
According to some embodiments of the invention, the top surface of the baffle is 25-35 mm higher than the upper surface of the horizontal plate.
According to some embodiments of the invention, the baffle comprises a first plate and a second plate; the first plate is fixedly arranged on the stepped steel plate, the second plate is arranged on the first plate, and the vertical distance between the second plate and the first plate can be adjusted.
According to some embodiments of the present invention, the first plate is provided with a first groove extending downward from a top surface, the second plate is provided with a first bump extending downward from a bottom surface, and the first bump is adapted to the first groove; the second plate is inserted on the first plate through the matching of the first convex block and the first groove.
According to some embodiments of the invention, two detachable cushion blocks are arranged between the first plate and the second plate, and the two cushion blocks are respectively located on two sides of the matching position of the first groove and the first bump.
According to some embodiments of the invention, the horizontal plate and the baffle are both telescopically adjustable in a horizontal direction.
The stair assembling method according to the second aspect mainly comprises the following steps:
s1, designing a stepped steel plate according to the size of the stairs in the construction drawing;
s2, integrally hoisting the stepped steel plate and then connecting the stepped steel plate with a building main body;
s3, arranging a vertical baffle plate on the outer side of each vertical plate of the stepped steel plate, wherein the length of the baffle plate is equal to the width of the vertical plate, the top surface of the baffle plate is higher than the upper surface of the horizontal plate of the stepped steel plate, and the height of the baffle plate can be adjusted;
s4, arranging side plates on two sides of the step-shaped steel plate along the step extending direction, arranging a plurality of pore channels extending downwards from the top surface on the side plates, and arranging handrails in the pore channels.
S5, pouring concrete on each horizontal plate to form a concrete pouring layer;
s6, smearing concrete on one side, far away from the vertical plate, of each baffle plate to form a concrete smearing layer;
and S7, curing the concrete.
The stair assembling method provided by the embodiment of the invention at least has the following technical effects: when the invention is applied, a large number of scaffolds are not needed, and the step-shaped steel plate is not needed to be dismantled, so that the labor force is saved.
According to some embodiments of the invention, a reinforcing rib is provided at the bottom of the stepped steel plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first schematic view of a stair construction arrangement of the present invention;
FIG. 2 is a second schematic view of the stair construction of the present invention;
FIG. 3 is a third schematic view of the stair construction of the present invention;
FIG. 4 is a flow chart of a stair assembling method according to the present invention;
reference numerals:
101. a stepped steel plate; 102. a baffle plate; 103. a side plate; 104. pouring a concrete layer; 105. a concrete coating layer; 106. a duct; 107. a railing; 108. a first plate; 109. a second plate; 110. a first groove; 111. a first bump; 112. a cushion block; 113. a horizontal plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, in one aspect, an embodiment of the present invention provides a stair assembling structure, including:
the step-shaped steel plate 101 is formed by splicing a plurality of horizontal plates 113 and a plurality of vertical plates;
the baffle plate 102 is vertically arranged on the outer side of the vertical plate, the length of the baffle plate 102 is equal to the width of the vertical plate, the top surface of the baffle plate 102 is higher than the upper surface of the horizontal plate 113, and the height of the baffle plate 102 can be adjusted;
a concrete cast layer 104 provided on each horizontal plate 113;
and a concrete smearing layer 105 is arranged on one side of each baffle plate 102 far away from the vertical plate.
The stair assembling structure provided by the embodiment of the invention at least has the following technical effects: when the stair assembling structure is applied, concrete is directly poured on each horizontal plate 113 after the stair-shaped steel plate 101 is built, and a formed concrete pouring layer 104 is used for treading; the arrangement of the baffle plate 102 and the side plate 103 limits the concrete pouring process to prevent the concrete from overflowing, and the arrangement of the concrete coating layer 105 can improve the integrity of the concrete pouring device. According to the invention, the stepped steel plate 101 is not required to be detached, the concrete and the stepped steel plate 101 are solidified into a whole, the structure is stable, and the construction is convenient. In the invention, the height of the baffle plate 102 can be adjusted, so that the invention can be suitable for buildings of stairs with different height sizes, has a wide application range, and does not need to manufacture baffle plates 102 with different heights.
According to some embodiments of the present invention, the top surface of the side plate 103 is inclined at an angle parallel to the step extending direction.
According to some embodiments of the present invention, the side panels 103 are provided with a plurality of holes 106 extending downward from the top surface for inserting a rail 107.
According to some embodiments of the present invention, the top surface of the baffle 102 is 25-35 mm above the upper surface of the horizontal plate 113.
According to some embodiments of the invention, the baffle 102 comprises a first plate 108 and a second plate 109; the first plate 108 is fixedly arranged on the stepped steel plate 101, the second plate 109 is arranged on the first plate 108, and the vertical distance between the second plate 109 and the first plate 108 can be adjusted.
According to some embodiments of the present invention, the first plate 108 is provided with a first groove 110 extending downward from the top surface, the second plate 109 is provided with a first protrusion 111 extending downward from the bottom surface, and the first protrusion 111 is adapted to the first groove 110; the second plate 109 is inserted on the first plate 108 by the cooperation of the first projection 111 and the first groove 110.
According to some embodiments of the present invention, two removable spacers 112 are disposed between the first plate 108 and the second plate 109, and the two spacers 112 are respectively located at two sides of the matching position of the first groove 110 and the first protrusion 111. The adjustment of the height of the baffle 102 can be achieved by adjusting the spacing between the first plate 108 and the second plate 109 by replacing the spacer 112 of different thickness.
According to some embodiments of the invention, both the horizontal plate 113 and the baffle 102 are telescopically adjustable in the horizontal direction. The width direction of the staircase can be expanded, so that the application range of the staircase is wider, and it can be understood that when the width of the staircase needs to be adjusted, the horizontal plate 113 and the baffle plate 102 are synchronously adjusted and the adjustment length is consistent.
On the other hand, referring to fig. 1 to 4, the invention provides a stair assembling method, which mainly comprises the following steps:
s1, designing a stepped steel plate 101 according to the size of a stair in the construction drawing;
s2, integrally hoisting the stepped steel plate 101 and then connecting the stepped steel plate with the building main body;
s3, arranging a vertical baffle plate 102 on the outer side of each vertical plate of the stepped steel plate 101, wherein the length of the baffle plate 102 is equal to the width of the vertical plate, the top surface of the baffle plate 102 is higher than the upper surface of the horizontal plate 113 of the stepped steel plate 101, and the height of the baffle plate 102 can be adjusted;
s4, side plates 103 are disposed on two sides of the step-shaped steel plate 101 along the step extending direction, a plurality of hole channels 106 extending downward from the top surface are disposed on the side plates 103, and a rail 107 is disposed in the hole channels 106.
S5, pouring concrete on each horizontal plate 113 to form a concrete pouring layer 104;
s6, smearing concrete on one side, away from the vertical plate, of each baffle plate 102 to form a concrete smearing layer 105;
and S7, curing the concrete.
The stair assembling method provided by the embodiment of the invention at least has the following technical effects: when the invention is applied, a large number of scaffolds are not needed, and the step-shaped steel plate 101 is not needed to be dismantled, so that the labor force is saved.
According to some embodiments of the present invention, a reinforcing rib is provided at the bottom of the stepped steel plate 101, and the reinforcing rib plays a role of reinforcing support.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A stair assembling structure is characterized by comprising:
the step-shaped steel plate is formed by splicing a plurality of horizontal plates and a plurality of vertical plates;
the baffle is vertically arranged on the outer side of the vertical plate, the length of the baffle is equal to the width of the vertical plate, the top surface of the baffle is higher than the upper surface of the horizontal plate, and the height of the baffle can be adjusted;
the side plates are arranged on two sides of the stepped steel plate along the extending direction of the steps;
the concrete pouring layer is arranged on each horizontal plate;
and the concrete smearing layer is arranged on one side of each baffle, which is far away from the vertical plate.
2. The stair construction of claim 1, wherein: the top surface of the side plate is inclined, and the inclined angle is parallel to the extending direction of the ladder.
3. A stair construction according to claim 2, wherein: the side plates are provided with a plurality of pore channels which extend downwards from the top surface and are used for inserting the railings.
4. The stair construction of claim 1, wherein: the top surface of baffle is higher than the upper surface 25 ~ 35mm of horizontal plate.
5. The stair construction of claim 1, wherein: the baffle comprises a first plate and a second plate; the first plate is fixedly arranged on the stepped steel plate, the second plate is arranged on the first plate, and the vertical distance between the second plate and the first plate can be adjusted.
6. A stair construction according to claim 5, wherein: the first plate is provided with a first groove extending downwards from the top surface, the second plate is provided with a first lug extending downwards from the bottom surface, and the first lug is matched with the first groove; the second plate is inserted on the first plate through the matching of the first convex block and the first groove.
7. The stair assembly structure according to claim 6, wherein: two detachable cushion blocks are arranged between the first plate and the second plate and are respectively positioned on two sides of the matching position of the first groove and the first convex block.
8. The stair construction of claim 1, wherein: the horizontal plate and the baffle can be adjusted in a telescopic mode in the horizontal direction.
9. A stair assembling method is characterized by mainly comprising the following steps:
s1, designing a stepped steel plate according to the size of the stairs in the construction drawing;
s2, integrally hoisting the stepped steel plate and then connecting the stepped steel plate with a building main body;
s3, arranging a vertical baffle plate on the outer side of each vertical plate of the stepped steel plate, wherein the length of the baffle plate is equal to the width of the vertical plate, the top surface of the baffle plate is higher than the upper surface of the horizontal plate of the stepped steel plate, and the height of the baffle plate can be adjusted;
s4, arranging side plates on two sides of the step-shaped steel plate along the step extending direction, arranging a plurality of pore channels extending downwards from the top surface on the side plates, and arranging handrails in the pore channels.
S5, pouring concrete on each horizontal plate to form a concrete pouring layer;
s6, smearing concrete on one side, far away from the vertical plate, of each baffle plate to form a concrete smearing layer;
and S7, curing the concrete.
10. A stair assembly method according to claim 9, wherein: and reinforcing ribs are arranged at the bottom of the stepped steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484902.1A CN114892906A (en) | 2022-05-06 | 2022-05-06 | Stair assembling structure and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484902.1A CN114892906A (en) | 2022-05-06 | 2022-05-06 | Stair assembling structure and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114892906A true CN114892906A (en) | 2022-08-12 |
Family
ID=82719991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210484902.1A Pending CN114892906A (en) | 2022-05-06 | 2022-05-06 | Stair assembling structure and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114892906A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203961261U (en) * | 2014-07-22 | 2014-11-26 | 武汉天蝎建筑装备有限公司 | The adjustable fast-assembling stair of a kind of width |
| US20140352241A1 (en) * | 2013-05-30 | 2014-12-04 | Lex A. Whitcomb, SR. | Dynamic Concrete Form |
| CN204309089U (en) * | 2014-10-30 | 2015-05-06 | 湖北弘毅钢结构工程有限公司 | The adjustable punching block of a kind of prefabricated reinforced concrete stair step stage |
| CN204571123U (en) * | 2015-01-16 | 2015-08-19 | 北新集团建材股份有限公司 | A kind of stair and stair connector thereof |
| CN206264118U (en) * | 2016-12-13 | 2017-06-20 | 西安方平建筑工程有限公司 | A kind of adjustable stairway die |
| CN109252625A (en) * | 2018-10-23 | 2019-01-22 | 上海宝冶集团有限公司 | Steel stair side floor tile structure and construction method |
| CN208545904U (en) * | 2018-06-15 | 2019-02-26 | 浙江绿筑集成科技有限公司 | A kind of prefabricated word plate girder Combined concrete stair |
| CN112513391A (en) * | 2018-06-12 | 2021-03-16 | 达维布瓦股份有限公司 | Retractable stair system and application thereof |
-
2022
- 2022-05-06 CN CN202210484902.1A patent/CN114892906A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140352241A1 (en) * | 2013-05-30 | 2014-12-04 | Lex A. Whitcomb, SR. | Dynamic Concrete Form |
| CN203961261U (en) * | 2014-07-22 | 2014-11-26 | 武汉天蝎建筑装备有限公司 | The adjustable fast-assembling stair of a kind of width |
| CN204309089U (en) * | 2014-10-30 | 2015-05-06 | 湖北弘毅钢结构工程有限公司 | The adjustable punching block of a kind of prefabricated reinforced concrete stair step stage |
| CN204571123U (en) * | 2015-01-16 | 2015-08-19 | 北新集团建材股份有限公司 | A kind of stair and stair connector thereof |
| CN206264118U (en) * | 2016-12-13 | 2017-06-20 | 西安方平建筑工程有限公司 | A kind of adjustable stairway die |
| CN112513391A (en) * | 2018-06-12 | 2021-03-16 | 达维布瓦股份有限公司 | Retractable stair system and application thereof |
| CN208545904U (en) * | 2018-06-15 | 2019-02-26 | 浙江绿筑集成科技有限公司 | A kind of prefabricated word plate girder Combined concrete stair |
| CN109252625A (en) * | 2018-10-23 | 2019-01-22 | 上海宝冶集团有限公司 | Steel stair side floor tile structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104878924A (en) | Stair step concrete pouring-molded template and stair cast-in-situ construction method | |
| CN210453135U (en) | Adjustable stair mould | |
| CN108789788A (en) | The template of the adjustable riser height of precast stair | |
| CN214531914U (en) | Closed aluminum alloy stair template | |
| CN112252134B (en) | Easily-detachable road gutter inlet template and construction method thereof | |
| JP2009281106A (en) | Manufacturing method of precast concrete staircase, and form device | |
| CN114892906A (en) | Stair assembling structure and assembling method | |
| CN218535051U (en) | Prefabricated staircase steel mould | |
| CN217175722U (en) | Shear force wall room stair tread module system | |
| KR102278231B1 (en) | self-assembly type stairway | |
| CN208023953U (en) | Fast-assembling stair template and fast-assembling stair template system | |
| CN204781953U (en) | Stair concrete placement shaping template of marking time | |
| AU2020254705A1 (en) | Step module for stairs | |
| CN206128636U (en) | Detachable stair formwork of flier | |
| CN220705150U (en) | Steel mould for one-time integral casting of stairwell wall and ladder combination | |
| CN217292753U (en) | Stair are size adjustable supporting seat for mould | |
| CN216810536U (en) | Device for manufacturing prefabricated composite floor slab | |
| CN112095943B (en) | Steel-concrete combined structure sliding support damping stair and construction method thereof | |
| CN218406487U (en) | Adjustable stair template | |
| CN109763647A (en) | Adjustable entirety stair tread formwork and construction method | |
| CN219548391U (en) | Forming structure of angle bead steel bar for aluminum template stair tread | |
| CN218758758U (en) | Building eaves mouth position integration formwork structure | |
| CN216196611U (en) | Novel integral type stair aluminum alloy template section bar of marking time | |
| CN217054323U (en) | Adjustable post-cast strip temporary support system | |
| CN217680124U (en) | Aluminum-wood composite stair structure |
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 |