CN114704039A - Fiber reinforced cement truss laminated slab steel concrete combined stair and manufacturing method - Google Patents
Fiber reinforced cement truss laminated slab steel concrete combined stair and manufacturing method Download PDFInfo
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- CN114704039A CN114704039A CN202210386051.7A CN202210386051A CN114704039A CN 114704039 A CN114704039 A CN 114704039A CN 202210386051 A CN202210386051 A CN 202210386051A CN 114704039 A CN114704039 A CN 114704039A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 170
- 239000010959 steel Substances 0.000 title claims abstract description 170
- 239000000835 fiber Substances 0.000 title claims abstract description 159
- 239000004568 cement Substances 0.000 title claims abstract description 146
- 239000004567 concrete Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000002131 composite material Substances 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 16
- 239000011094 fiberboard Substances 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 2
- 238000009415 formwork Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0627—Three-dimensional reinforcements composed of a prefabricated reinforcing mat combined with reinforcing elements protruding out of the plane of the mat
-
- 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
- E04F11/025—Stairways having stringers
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The fiber reinforced cement truss laminated slab steel concrete combined stair comprises a fiber reinforced cement steel bar truss laminated slab, a steel stair oblique beam, concrete and a cement fiber step; the fiber reinforced cement steel bar truss composite slab is characterized in that two steel ladder oblique beams are arranged in parallel, a fiber reinforced cement steel bar truss composite slab is arranged between the two steel ladder oblique beams, cement fiber steps are fixedly arranged between the steel ladder oblique beams above the fiber reinforced cement steel bar truss composite slab side by side, and concrete is filled between the fiber reinforced cement steel bar truss composite slab and the cement fiber steps; the invention provides a fiber reinforced cement truss type laminated slab steel concrete combined stair which does not need formwork erecting and formwork removing, is convenient and quick to install and high in construction speed, and is good in integrity, reasonable and reliable in stress.
Description
Technical Field
The invention belongs to the technical field of stair building construction, and particularly relates to a fiber reinforced cement truss laminated slab steel concrete combined stair and a manufacturing method thereof.
Background
The traditional construction process of building stairs needs to support templates, bind reinforcing steel bars, pour concrete, maintain and remove forms on site, and is greatly influenced by external factors. The labor intensity of workers is high, and the accuracy control difficulty is high. And the template can not be used before being dismantled, which affects the vertical transportation efficiency of the floor working face, thus being only suitable for buildings with higher seismic fortification intensity and special-shaped stairs.
At present, after related policies of developing assembly type buildings and promoting building industrialization are successively issued in China and places, prefabricated assembly type buildings enter a new period of rapid development. Under the big background of the vigorous development of the fabricated building in China, the prefabricated assembled staircases are also adopted in a large number of concrete assembled projects, and the prefabricated assembly is realized to a certain extent. Most of the concrete prefabricated staircases in the existing fabricated buildings are formed by binding steel bars in advance in a factory and pouring the steel bars in a mold, and then transporting the prefabricated staircases to a site to hoist the staircases between two rest platforms on the layer, so that the preformed holes of the staircases are aligned to embedded parts of the rest platforms to complete hoisting, and grouting materials are filled in the embedded holes to complete assembly of the staircases; the weight of a single step is about 2-3t, the connection of nodes is complex, and cracks are easy to appear at cast-in-place and prefabricated splicing positions; although the steel stair can realize prefabrication more easily, later stage effect is poor in use, and the noise is great and the processing such as fire prevention is comparatively complicated.
Disclosure of Invention
The invention aims to provide a fiber reinforced cement truss laminated slab steel concrete combined stair and a manufacturing method thereof, and aims to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the fiber reinforced cement truss laminated slab steel concrete combined stair comprises a fiber reinforced cement steel bar truss laminated slab, a steel stair oblique beam, concrete and a cement fiber step; the fiber reinforced cement steel bar truss composite slab is characterized in that two steel ladder oblique beams are arranged in parallel, a fiber reinforced cement steel bar truss composite slab is arranged between the two steel ladder oblique beams, cement fiber steps are fixedly arranged between the steel ladder oblique beams above the fiber reinforced cement steel bar truss composite slab side by side, and concrete is filled between the fiber reinforced cement steel bar truss composite slab and the cement fiber steps;
the fiber reinforced cement steel bar truss composite slab comprises a fiber reinforced cement fiber bottom plate and steel bar trusses, wherein the fiber reinforced cement fiber bottom plate is arranged between the lower edges of two steel ladder oblique beams, and a plurality of steel bar trusses are parallelly and fixedly arranged on the fiber reinforced cement fiber bottom plate at equal intervals.
Furthermore, the steel bar truss is fixed on the fiber reinforced cement fiber bottom plate through a steel bar truss connecting piece, the steel bar truss connecting piece is welded with the bottom of the steel bar truss, and the steel bar truss connecting piece is connected with the fiber reinforced cement fiber bottom plate through a screw.
Furthermore, the two ends of the steel bar truss and the inner side of the web plate of the steel ladder sloping beam are spot-welded.
Furthermore, the steel bar truss connecting piece is of a steel structure with a V-shaped groove.
Further, the cement fiber step comprises a cement fiber stepping vertical plate and a cement fiber stepping flat plate; the cement fiber stepping vertical plate and the edge of the cement fiber stepping flat plate are connected to form a cement fiber step.
Further, cement fibre riser and cement fibre are marked time the flat board and are passed through L type fibreboard connecting piece and connect, and cement fibre is marked time riser and cement fibre and is marked time flat board edge mutually perpendicular, and L type fibreboard connecting piece sets up in mutually perpendicular's corner, through screw fixed connection.
Furthermore, the L-shaped fiber board connecting pieces are positioned at two end parts of the cement fiber steps, and the edges of the L-shaped fiber board connecting pieces are welded with the inner sides of the web plates of the steel ladder oblique beams at the corresponding positions.
Furthermore, the end parts of the two steel ladder inclined beams are welded and fixed with the steel beams of the upper platform and the lower platform.
Further, the manufacturing method of the fiber reinforced cement truss laminated slab steel concrete combined stair comprises the following steps:
manufacturing steel ladder oblique beams on two sides of the combined ladder, and prefabricating L-shaped fiber plate connecting pieces; cutting a cement fiber stepping vertical plate and a cement fiber stepping flat plate for assembling the stair stepping template; cutting fiber reinforced cement boards for the bottom board and the bottom die; prefabricating a steel bar truss and a connecting piece of the steel bar truss and a bottom plate, and welding the connecting piece with steel bars at the lower part of the steel bar truss;
connecting the steel bar truss and the connecting piece with the fiber reinforced cement bottom plate through self-tapping screws, and welding the L-shaped fiberboard connecting piece to the inner side of a steel beam web;
welding and fixing the steel ladder oblique beam and the steel beams of the upper and lower platforms on a construction site, placing the fiber reinforced cement steel bar truss laminated slab on the flange of the L-shaped steel beam, and melting through and spot-welding the end of the steel bar truss and the web of the steel beam for fixing; fixing the cement fiber stepping vertical plate and the cement fiber stepping flat plate through self-tapping screws to form a stair stepping template;
concrete is poured from top to bottom, and a concrete entity, a fiber reinforced cement steel bar truss laminated slab and a steel inclined beam in the cement fiber step plate are combined into a whole body which is stressed integrally.
Compared with the prior art, the invention has the following technical effects:
the invention provides a fiber reinforced cement truss type laminated slab steel concrete combined stair which does not need formwork erecting and formwork removing, is convenient and quick to install and high in construction speed, and is good in integrity, reasonable and reliable in stress. The invention provides a fiber reinforced cement steel bar truss composite slab steel concrete combined stair, which is a steel concrete combined stair formed by using a fiber reinforced cement truss composite slab as a stair bottom template, using a cement fiber board as a step template through a connecting piece and then pouring concrete on the step template. The combined stair comprises a fiber reinforced cement steel bar truss laminated slab, a steel inclined beam, a concrete stair section, a cement fiber template connecting piece, a cement fiber stepping vertical plate and a cement fiber stepping flat plate. The combined stair disclosed by the invention is reasonable in structure, convenient to manufacture and reliable in quality, does not need formwork support and formwork removal, and can realize rapid construction on site.
Drawings
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is a view of the present invention after casting;
FIG. 3 is a perspective view of the mounting shaft of the present invention;
FIG. 4 is an installation side view of the present invention;
FIG. 5 is a partial view of the present invention installed;
FIG. 6 is a diagram of a fiber cement truss type laminated panel according to the present invention;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is an enlarged view of FIG. 6;
FIG. 9 is a three-dimensional view of the present invention;
FIG. 10 is a top view of the present invention;
FIG. 11 is a front view of the present invention;
FIG. 12 is an L-shaped fiberboard splice member in accordance with the present invention;
fig. 13 is a steel truss connection member according to the present invention.
Wherein: 1. a steel ladder stringer; 2. fiber reinforced cement steel bar truss laminated slab; 21. a fiber reinforced cement fiber mat; 22 steel bar trusses; 23. a steel bar truss connecting piece; 3. concrete; 4. cement fiber stepping vertical plates; 5. a cement fiber tread flat plate; 6. an L-shaped fiberboard connecting piece; 7. a self-tapping screw.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
for a further understanding of the contents, features and effects of the invention, reference is made to the following examples, which are set forth in the accompanying drawings and in the following detailed description: 1. a steel ladder stringer; 2. fiber reinforced cement steel bar truss laminated slab; 21. a fiber reinforced cement fiber mat; 22 steel bar trusses; 23. a steel bar truss connecting piece; 3. concrete; 4. cement fiber stepping vertical plates; 5. a cement fiber tread flat plate; 6. an L-shaped fiberboard connecting piece; 7. a self-tapping screw.
A fiber reinforced cement truss type laminated slab steel concrete combined stair comprises a fiber reinforced cement steel bar truss laminated slab, a steel inclined beam, a concrete stair section, a cement fiber template connecting piece, a cement fiber stepping vertical plate and a cement fiber stepping flat plate; the method comprises the following steps of (1) using a fiber reinforced cement steel bar truss laminated slab as a stair section bottom plate and a bottom template, and arranging along a stair inclined section, wherein the steel bar truss is arranged along the width direction of a stair; placing two sides of the truss type laminated slab on flanges of the steel inclined beams, and connecting ends of the steel bar truss with webs of the steel inclined beams on the two sides through penetration spot welding; welding the L-shaped cement fiberboard connecting piece with a steel girder web plate; fixing the cement fiber stepping vertical plate and the flat plate which are cut in advance with a connecting piece by using self-tapping screws; the concrete is maintained after being poured from top to bottom without formwork support and formwork removal; the cement fiber stepping vertical plates, the flat plates and the fiber reinforced cement steel bar truss composite plates are respectively used as a bottom template and a stepping template of the stair. The concrete entity, the cement fiberboard step plate, the fiber reinforced cement truss type laminated slab and the steel inclined beam form an integrally stressed combined stair.
The fiber reinforced cement truss type laminated slab is formed by connecting a fiber reinforced cement slab and a steel bar truss through self-tapping screws by the steel bar truss spot-welded on the n-shaped connecting piece.
The height of the inverted V-shaped steel bar truss connecting piece is equal to the thickness of the concrete protective layer.
The steel beam can be any one of L-shaped, Z-shaped, C-shaped and I-shaped steel beams.
Referring to fig. 1 to 13, a fiber reinforced cement steel bar truss type composite slab steel concrete combined stair comprises a fiber reinforced cement steel bar truss composite slab 2, an oblique beam, a concrete stair section, a cement fiber template connecting piece, a cement fiber step vertical plate, a cement fiber step flat plate and a self-tapping screw; the fiber reinforced cement steel bar truss composite slab is used as a ladder section bottom plate and also used as a bottom template and is arranged along the ladder inclined section, wherein the direction of the steel bar truss is parallel to the width direction of the step; the ends of the steel bar truss are connected with the L-shaped steel ladder inclined beam webs on the two sides through penetration spot welding; welding the L-shaped cement fiberboard connecting piece with a steel girder web plate; fixing the cement fiber stepping vertical plate and the flat plate which are cut in advance with a connecting piece by using self-tapping screws; and after the concrete is poured from top to bottom, the concrete is maintained without disassembling the formwork, and the cement fiber stepping vertical plate, the flat plate and the fiber reinforced cement steel bar truss composite plate are used as a formwork to be integrated with the concrete.
The construction steps of the combined stair are as follows:
1. according to the design size, manufacturing L-shaped steel beams 1 on two sides of the combined stair, wherein the width of a flange of a short edge is not less than 100 mm; prefabricating an L-shaped fiberboard connecting piece 6; cutting a cement fiber stepping vertical plate 4 and a cement fiber stepping flat plate 5 which are used for assembling the stair stepping template; cutting fiber reinforced cement boards 21 for a bottom plate and a bottom die; prefabricating a steel bar truss 22 and a connecting piece 23 of the steel bar truss and the bottom plate 21, and welding the connecting piece 23 with the lower steel bar of the steel bar truss.
2. According to one embodiment, the steel bar trusses 22 and the connecting elements 23 are connected to the fiber cement floor 21 by means of self-tapping screws 7. And welding the L-shaped fiberboard connecting piece 6 to the inner side of the web plate of the steel beam 1 according to a design scheme.
3. In a construction site, welding and fixing the steel oblique beam 1 and the steel beams of the upper and lower platforms, then placing the fiber reinforced cement steel bar truss laminated slab on the flange of the L-shaped steel beam, and fixing the end of the steel bar truss 22 and the web of the steel beam through fusion spot welding; and fixing the cement fiber step boards 4 and 5 by self-tapping screws to form the stair step template.
4. Concrete is poured from top to bottom, a concrete entity, a fiber reinforced cement steel bar truss laminated slab and an L-shaped steel inclined beam in the cement fiber step plate are combined into a whole body with integral stress, and the form removal is not needed after the maintenance is finished.
The template system consisting of the steel oblique beams on the two sides, the fiber reinforced cement steel bar truss type laminated slab and the cement fiberboard step can realize zero template use, can save a large amount of template lease and transportation cost and the cost for disassembling and transporting the template, can save the cost and time for installing a full scaffold, greatly shortens the construction period and reduces the construction cost;
the steel bar truss can play a role of reinforcing bars in the traditional reinforced concrete member, so that the combined stair can be not provided with the steel bars, and the field operation amount can be further reduced;
the fiber reinforced cement steel bar truss type laminated slab is a factory prefabricated component, is high in production efficiency, high in processing speed, low in cost, convenient to ensure quality, capable of enabling construction to be simpler and more convenient, good in economical efficiency and high in efficiency;
the combined stair adopts a cast-in-place structure, so that the hoisting weight of the prefabricated stair on the construction site is greatly reduced, and the construction process is economic and safe;
compared with prefabricated stairs, the floor slab concrete combined stair can control the size more accurately, and has better integrity;
the truss floor slab has reasonable stress mode and combined mode and integral rigidity of cast-in-place concrete.
Claims (9)
1. The fiber reinforced cement truss laminated slab steel concrete combined stair is characterized by comprising a fiber reinforced cement steel bar truss laminated slab (2), a steel ladder oblique beam (1), concrete (3) and cement fiber steps; the fiber reinforced cement steel bar truss composite slab is characterized in that two steel ladder oblique beams (1) are arranged in parallel, a fiber reinforced cement steel bar truss composite slab (2) is arranged between the two steel ladder oblique beams (1), cement fiber steps are fixedly arranged between the steel ladder oblique beams (1) above the fiber reinforced cement steel bar truss composite slab (2) side by side, and concrete (3) is filled between the fiber reinforced cement steel bar truss composite slab (2) and the cement fiber steps;
the fiber reinforced cement steel bar truss composite slab (2) comprises a fiber reinforced cement fiber bottom plate (21) and steel bar trusses (22), wherein the fiber reinforced cement fiber bottom plate (21) is arranged between the lower edges of two steel ladder oblique beams (1), and a plurality of steel bar trusses (22) are parallelly and fixedly arranged on the fiber reinforced cement fiber bottom plate (21) at equal intervals.
2. The fiber cement truss composite slab steel concrete composite stair of claim 1, wherein the steel bar truss (22) is fixed on the fiber cement fiber base plate (21) through a steel bar truss connecting piece (23), the steel bar truss connecting piece (23) is welded with the bottom of the steel bar truss (22), and the steel bar truss connecting piece (23) is connected with the fiber cement fiber base plate (21) through screws.
3. The fiber cement truss composite slab steel concrete composite stair of claim 2, wherein two ends of the steel bar truss (22) and the inner side of the web of the steel ladder stringer (1) are spot-welded.
4. The fiber cement truss composite slab steel concrete composite staircase according to claim 2, wherein the steel bar truss connecting member (23) is a steel structure with a n-shaped groove.
5. The fiber reinforced cement truss composite slab steel concrete combined stair of claim 1, wherein the cement fiber steps comprise cement fiber step risers (4) and cement fiber step plates (5); the cement fiber stepping vertical plate (4) and the cement fiber stepping flat plate (5) are connected at the edge to form a cement fiber step.
6. The fiber reinforced cement truss composite slab steel concrete combined stair of claim 5, wherein the cement fiber stepping vertical plates (4) and the cement fiber stepping flat plates (5) are connected through L-shaped fiber plate connecting pieces (6), the edges of the cement fiber stepping vertical plates (4) and the cement fiber stepping flat plates (5) are perpendicular to each other, and the L-shaped fiber plate connecting pieces (6) are arranged at the corners perpendicular to each other and fixedly connected through screws.
7. The fiber reinforced cement truss composite slab steel concrete combined stair is characterized in that L-shaped fiber plate connecting pieces (6) are located at two end portions of a cement fiber step, and the edges of the L-shaped fiber plate connecting pieces (6) are welded with the inner sides of webs of steel ladder diagonals (1) at corresponding positions.
8. The fiber reinforced cement truss composite slab steel concrete combined stair as claimed in claim 1, wherein the ends of the two steel ladder stringers (1) are welded and fixed with the steel beams of the upper and lower platforms.
9. The manufacturing method of the fiber reinforced cement truss laminated slab steel concrete combined stair is characterized in that the fiber reinforced cement truss laminated slab steel concrete combined stair based on any one of claims 1) to (8) comprises the following steps:
manufacturing steel ladder oblique beams (1) on two sides of the combined ladder, and prefabricating L-shaped fiber plate connecting pieces (6); cutting a cement fiber stepping vertical plate (4) and a cement fiber stepping flat plate (5) for assembling the stair stepping template; cutting fiber reinforced cement boards (21) for the bottom plate and the bottom die; prefabricating a steel bar truss (22) and a connecting piece (23) of the steel bar truss and a bottom plate (21), and welding the connecting piece (23) with steel bars on the lower part of the steel bar truss;
connecting a steel bar truss (22) and a connecting piece (23) with a fiber reinforced cement bottom plate (21) through self-tapping screws, and welding an L-shaped fiberboard connecting piece (6) to the inner side of a web plate of the steel beam (1);
in a construction site, welding and fixing the steel ladder oblique beam (1) and the steel beams of the upper and lower platforms, then placing the fiber reinforced cement steel bar truss laminated slab on the flange of the L-shaped steel beam, and fixing the end of the steel bar truss (22) and the web of the steel beam through fusion spot welding; fixing the cement fiber stepping vertical plate (4) and the cement fiber stepping flat plate (5) through self-tapping screws to form a stair stepping template;
concrete is poured from top to bottom, and a concrete entity, a fiber reinforced cement steel bar truss laminated slab and a steel oblique beam in the cement fiber step plate are combined into a whole body with integral stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210386051.7A CN114704039A (en) | 2022-04-13 | 2022-04-13 | Fiber reinforced cement truss laminated slab steel concrete combined stair and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210386051.7A CN114704039A (en) | 2022-04-13 | 2022-04-13 | Fiber reinforced cement truss laminated slab steel concrete combined stair and manufacturing method |
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| CN114704039A true CN114704039A (en) | 2022-07-05 |
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| CN202210386051.7A Pending CN114704039A (en) | 2022-04-13 | 2022-04-13 | Fiber reinforced cement truss laminated slab steel concrete combined stair and manufacturing method |
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|---|---|---|---|---|
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| CN110258984A (en) * | 2019-06-05 | 2019-09-20 | 浙江绿筑集成科技有限公司 | A kind of production method of steel-concrete combined staircase |
| CN209620363U (en) * | 2018-08-30 | 2019-11-12 | 李予新 | It is a kind of to exempt from demoulding steel bar truss floor support plate using high-strength fabric cement plate as bed die |
| CN211850812U (en) * | 2019-09-04 | 2020-11-03 | 中国黄金集团建设有限公司 | Bottom die for disposable truss floor support plate and disposable truss floor support plate |
| CN112900764A (en) * | 2021-03-15 | 2021-06-04 | 重庆大学 | Light assembled stair with steel bar truss |
| CN113250365A (en) * | 2021-05-28 | 2021-08-13 | 中国建筑科学研究院有限公司 | Bottom die removal-free steel bar truss floor support plate and construction method thereof |
| CN214614896U (en) * | 2021-02-25 | 2021-11-05 | 西安建筑科技大学 | Assembly type disassembly-free steel bar truss floor bearing plate |
-
2022
- 2022-04-13 CN CN202210386051.7A patent/CN114704039A/en active Pending
Patent Citations (10)
| 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 |
| WO2018126950A1 (en) * | 2017-01-04 | 2018-07-12 | Yingchuang Building Technique (Shanghai) Co., Ltd | Modular stairway |
| CN109025103A (en) * | 2018-08-30 | 2018-12-18 | 天津大学建筑设计研究院 | Light steel grating concrete folding stair |
| CN208803649U (en) * | 2018-08-30 | 2019-04-30 | 天津大学建筑设计研究院 | Light steel grating concrete folding stair |
| CN209620363U (en) * | 2018-08-30 | 2019-11-12 | 李予新 | It is a kind of to exempt from demoulding steel bar truss floor support plate using high-strength fabric cement plate as bed die |
| CN110258984A (en) * | 2019-06-05 | 2019-09-20 | 浙江绿筑集成科技有限公司 | A kind of production method of steel-concrete combined staircase |
| CN211850812U (en) * | 2019-09-04 | 2020-11-03 | 中国黄金集团建设有限公司 | Bottom die for disposable truss floor support plate and disposable truss floor support plate |
| CN214614896U (en) * | 2021-02-25 | 2021-11-05 | 西安建筑科技大学 | Assembly type disassembly-free steel bar truss floor bearing plate |
| CN112900764A (en) * | 2021-03-15 | 2021-06-04 | 重庆大学 | Light assembled stair with steel bar truss |
| CN113250365A (en) * | 2021-05-28 | 2021-08-13 | 中国建筑科学研究院有限公司 | Bottom die removal-free steel bar truss floor support plate and construction method thereof |
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