CN114059703A - Reinforced truss concrete floor slab without removing bottom form and its forming method - Google Patents
Reinforced truss concrete floor slab without removing bottom form and its forming method Download PDFInfo
- Publication number
- CN114059703A CN114059703A CN202111484236.3A CN202111484236A CN114059703A CN 114059703 A CN114059703 A CN 114059703A CN 202111484236 A CN202111484236 A CN 202111484236A CN 114059703 A CN114059703 A CN 114059703A
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- Prior art keywords
- truss
- concrete
- net
- steel
- concrete floor
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- 239000004567 concrete Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000004575 stone Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 7
- 239000004566 building material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 239000004568 cement Substances 0.000 description 7
- 239000011120 plywood Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
本发明涉及建材领域，具体涉及一种免拆底模钢筋桁架混凝土楼承板及其成型方法。一种免拆底模钢筋桁架混凝土楼承板，包括桁架，所述桁架平行于其长度方向排列设置于有筋钢板网上，所述有筋钢板网及桁架底部经浇筑埋入混凝土层；所述有筋钢板网包括钢网和钢网上的凸筋，所述凸筋与桁架长度方向垂直。本发明便于生产及施工，性能更加。
The invention relates to the field of building materials, in particular to a bottom form-free steel bar truss concrete floor deck and a forming method thereof. A bottom form-free reinforced truss concrete floor deck comprises trusses, the trusses are arranged on a reinforced steel plate mesh parallel to its length direction, the reinforced steel mesh and the bottom of the trusses are poured and buried in a concrete layer; the The reinforced expanded metal mesh includes a steel mesh and raised ribs on the steel mesh, and the raised ribs are perpendicular to the length direction of the truss. The invention is convenient for production and construction, and has better performance.
Description
Technical Field
The invention relates to the field of building materials, in particular to a steel bar truss concrete floor support plate without detaching a bottom die and a forming method thereof.
Background
The existing steel bar truss floor support plates are various in types, and the main types include three types, namely a floor support plate system which is intensively shown in YJ (YJ) non-dismantling bottom die steel bar truss floor support plate (21CG54) reference figures, such as a B-type fiber cement plate, and a detachable bamboo plywood floor support plate system.
Above three kinds of steel bar truss floor carrier plates all have separately the defect, and profiled sheet main defect has: 1. the steel plate is not breathable and is not suitable for being used as a floor bearing plate of a residential building; 2. the profiled steel sheet is easy to rust; 3. the profiled steel sheet has poor compatibility with other cement-based decorative materials, and is easy to form hollowness and fall off. YJ non-dismantling bottom die steel bar truss floor deck (21CG54) the floor deck system shown in the reference figure has the following main disadvantages: 1. brittleness, brittleness easily in the transportation construction process and large loss; 2. the compatibility with concrete is poor, and the fiber cement board and the concrete can be hollow, layered and fall off after a long time; 3. the bottom plate can not be used as a structural component, and floor space (10-15 mm) is wasted; 4. the combination of the truss and the bottom template needs special connecting pieces and wastes, and the cost is increased when the wastes are used; 5. the water absorption is high. The main defects of the detachable bamboo plywood floor support plate system include that 1, special connecting materials are needed for loading and unloading the bamboo plywood bottom die, and waste materials are wasted during loading and unloading processes; 2. the bamboo plywood has limited use times, and can cause loss and deformation in each use, increase the cost, pollute the environment and increase the field construction period.
Disclosure of Invention
The invention aims to provide a bottom die removal-free steel bar truss concrete floor support plate and a forming method thereof, and aims to solve the problems that the existing steel bar truss floor support plate is inconvenient to construct and poor in performance.
In order to achieve the purpose, the invention provides the following technical scheme:
a disassembly-free bottom die steel bar truss concrete floor support plate comprises trusses, wherein the trusses are arranged on a ribbed steel plate net in a manner of being parallel to the length direction of the trusses, and the ribbed steel plate net and the bottoms of the trusses are poured and embedded into a concrete layer; the ribbed steel plate net comprises a steel net and convex ribs on the steel net, and the convex ribs are perpendicular to the length direction of the truss.
Preferably, the convex rib is in an inverted V shape, and the height of the convex rib is 5-10 mm.
Preferably, the truss distance between the tops of the adjacent trusses is 500-600 mm.
Preferably, the concrete layer is a pea concrete layer.
A method for molding a steel bar truss concrete floor support plate without detaching a bottom die comprises the following steps:
s1: the bottom of the truss is tied on the ribbed steel plate net, and the trusses are arranged on the ribbed steel plate net in parallel to the length direction of the truss; the ribbed steel plate net comprises a steel net and convex ribs on the steel net, and the convex ribs are vertical to the length direction of the truss;
s2: manufacturing a mould frame, pouring concrete into the mould frame to form a bottom plate, placing the bound bottom of the truss and the reinforced steel plate net on the concrete before the concrete is hardened, and burying the bottom of the truss and the reinforced steel plate net in a concrete layer;
s3: demolding: and (5) demolding after curing.
Preferably, in the step S2, a mold frame is prepared, and then a mold release agent is sprayed on the inner wall of the mold frame.
Preferably, the convex rib is in an inverted V shape, and the height of the convex rib is 5-10 mm.
Preferably, the concrete layer is a pea concrete layer.
Compared with the prior art, the invention can at least produce one of the following beneficial effects: the invention adopts cement-based materials, overcomes the defects that the profiled steel sheet net is airtight, easy to rust and incompatible with concrete, and easy to form hollowing and falling; the convex ribs are buried in the concrete layer and are vertically arranged with the truss, so that the strength is further improved compared with the strength arranged along the length direction of the truss; according to the invention, the bottom of the truss and the reinforced steel plate net are directly embedded in the concrete layer, a connecting piece is not needed, and the construction is more convenient; the concrete of the bottom plate part and the concrete of the cast-in-place floor are integrated to form a component part of the floor, so that the space is fully utilized, the material and the space are saved, and the bending resistance bearing capacity of the reinforced floor bearing plate is improved; compared with the existing reinforced floor support plate system, the reinforced floor support plate system is safer and more reliable, the bottom surface of the bottom plate is flat and smooth, plastering on the bottom surface is not needed, the construction period is saved, and the manufacturing cost is saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows the structure of the steel bar truss concrete floor deck without detaching the bottom die, and several embodiments are listed below with reference to the figure.
Example 1:
a disassembly-free bottom die steel bar truss concrete floor support plate comprises trusses, wherein the trusses are arranged on a ribbed steel plate net in a manner of being parallel to the length direction of the trusses, and the ribbed steel plate net and the bottoms of the trusses are poured and embedded into a concrete layer; the ribbed steel plate net comprises a steel net and convex ribs on the steel net, and the convex ribs are perpendicular to the length direction of the truss and have higher strength compared with the parallel arrangement of the convex ribs and the truss. Wherein the mesh size of the reinforced steel plate net is (4-11) mmx (9.5-23) mmm. The convex ribs are inverted V-shaped, the height of each convex rib is 5-10 mm, the height of each convex rib is not required to be too high, so that the convex ribs can be completely embedded into the concrete layer instead of being exposed outside, and the mechanical property is better. And the distance between every two adjacent trusses is 500-600 mm, and due to the excellent structure, the density of the trusses can be reduced, and materials are saved. The concrete layer can be made of common cement-based anti-crack mortar, gravel concrete and the like, and preferably can be made of a pea stone concrete layer, so that the formed surface is smoother, the compactness of the concrete is higher, and the bond stress of the reinforced steel plate net after hardening is better.
The disassembly-free bottom die steel bar truss concrete floor support plate is formed by the following steps: s1: the bottom of the truss is tied on the ribbed steel plate net, and the bottom of the truss and the ribbed steel plate net can be jointly embedded into a concrete layer in subsequent steps and can be mutually and tightly connected, so that welding is not needed between the bottom of the truss and the ribbed steel plate net, binding can be adopted, production is facilitated, and production efficiency is improved. According to the requirements of demoulding hoisting and installation hoisting, two reinforcing steel bars with the length of 300mm can be bound together with a reinforced steel plate net and a truss at the position needing demoulding hoisting and installation hoisting to be used as a hoisting piece, so that the stress is stronger;
s2: and (3) manufacturing a mold frame, manufacturing side molds according to the length and width requirements of the bottom plate, fixing the manufactured side molds on a pouring platform, and spraying a release agent at the position where concrete needs to be poured, wherein the thickness of the side molds is 18-20 mm. And pouring concrete into the mould frame to form a bottom plate, placing the bound bottom of the truss and the reinforced steel plate net on the concrete before the concrete is hardened, and burying the bottom of the truss and the reinforced steel plate net in the concrete layer. The self weights of the truss and the reinforced steel plate net are used for sinking into the concrete layer, so that the truss, the reinforced steel plate net and the concrete form a whole;
s3: demolding: and (4) demolding after curing to form the disassembly-free bottom die steel bar truss concrete floor support plate.
The invention overcomes the defects that the profiled steel sheet net is airtight, easy to rust and incompatible with concrete, and easy to form hollowness and fall off.
The invention overcomes the following problems of a YJ bottom die removal-free steel bar truss floor support plate (21CG54) drawing and integrating floor support plate system: brittleness, brittleness easily in the transportation construction process and large loss; the compatibility with concrete is poor, and the fiber cement board and the concrete can be hollow, layered and fall off after a long time; the bottom plate can not be used as a structural component, and floor space (10-15 mm) is wasted; the combination of the truss and the bottom template needs special connecting pieces and wastes, and the cost is increased when the wastes are used; the water absorption is high.
The invention overcomes the defects that the loading and unloading of the bamboo plywood bottom die of the detachable bamboo plywood floor support plate system need special connecting materials, and wastes are generated in the loading and unloading processes; the use frequency of the bamboo plywood is limited, and the problems of loss, deformation, cost increase, environmental pollution, field construction period increase and the like can be caused in each use.
The invention uses cement-based material as the bottom plate, the A-level fire prevention is poured with the truss, the special connecting piece between the bottom plate and the truss is not needed, the labor and the materials are saved, the concrete of the bottom plate is integrated with the concrete of the cast-in-place floor to form the component of the floor, the space is fully utilized, the material is saved, the space is saved, the bending resistance bearing capacity of the reinforced floor bearing plate is improved, the hollowing, cracking and falling of the reinforced floor bearing plate and the cast-in-place concrete floor are avoided, and the invention is safer and more reliable than the existing reinforced floor bearing plate system.
Reference throughout this specification to multiple illustrative embodiments means that a particular structure described in connection with the embodiments is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, while a structure has been described in connection with any one embodiment, it is to be understood that it is within the scope of the invention to implement such structure in connection with other embodiments.
Claims (8)
1. The utility model provides an exempt from to tear open die block steel bar truss concrete floor carrier plate, includes truss (1), its characterized in that: the trusses (1) are arranged on the reinforced steel plate net (2) in a direction parallel to the length direction of the trusses, and the reinforced steel plate net (2) and the bottom of the trusses (1) are poured and embedded into a concrete layer; the ribbed steel plate net (2) comprises a steel net (21) and a convex rib (22) on the steel net (21), and the convex rib (22) is vertical to the length direction of the truss (1).
2. The disassembly-free bottom die steel bar truss concrete floor deck according to claim 1, characterized in that: the convex rib (22) is of an inverted V shape, and the height of the convex rib (22) is 5-10 mm.
3. The disassembly-free bottom die steel bar truss concrete floor deck according to claim 1, characterized in that: and the truss distance between the tops of the adjacent trusses (1) is 500-600 mm.
4. The disassembly-free bottom die steel bar truss concrete floor deck according to claim 1, characterized in that: the concrete layer is a pea stone concrete layer.
5. A forming method of a bottom die-dismantling-free reinforced truss concrete floor support plate is characterized by comprising the following steps: the method comprises the following steps:
s1: the bottom of the truss (1) is tied on the ribbed steel plate net (2), and the truss (1) is arranged on the ribbed steel plate net (2) in parallel to the length direction of the truss (1); the ribbed steel plate net (2) comprises a steel net (21) and a convex rib (22) on the steel net (21), and the convex rib (22) is vertical to the length direction of the truss (1);
s2: manufacturing a mold frame, pouring concrete into the mold frame to form a bottom plate, placing the bound bottom of the truss (1) and the ribbed steel plate net (2) on the concrete before the concrete is hardened, and burying the bottom of the truss (1) and the ribbed steel plate net (2) in a concrete layer;
s3: demolding: and (5) demolding after curing.
6. The method for forming the steel bar truss concrete floor deck without detaching the bottom die as claimed in claim 5, wherein: and in the step S2, spraying a release agent on the inner wall of the mold frame after the mold frame is manufactured.
7. The method for forming the steel bar truss concrete floor deck without detaching the bottom die as claimed in claim 5, wherein: the convex rib (22) is of an inverted V shape, and the height of the convex rib (22) is 5-10 mm.
8. The method for forming the steel bar truss concrete floor deck without detaching the bottom die as claimed in claim 5, wherein: the concrete layer is a pea stone concrete layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484236.3A CN114059703A (en) | 2021-12-07 | 2021-12-07 | Reinforced truss concrete floor slab without removing bottom form and its forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484236.3A CN114059703A (en) | 2021-12-07 | 2021-12-07 | Reinforced truss concrete floor slab without removing bottom form and its forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114059703A true CN114059703A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111484236.3A Pending CN114059703A (en) | 2021-12-07 | 2021-12-07 | Reinforced truss concrete floor slab without removing bottom form and its forming method |
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| CN (1) | CN114059703A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150145156A1 (en) * | 2012-05-08 | 2015-05-28 | Kunshan Ecological Building Technology Co., Ltd. | Method of casting in-situ ferrocement ribbed slab with spliced rack and suspended formwork |
| CN111608308A (en) * | 2020-05-19 | 2020-09-01 | 黄通 | Distributed three-dimensional factory floor and preparation method |
| CN111851825A (en) * | 2020-06-30 | 2020-10-30 | 天津竟盛新型建材有限公司 | A prefabricated formwork-free prefabricated steel truss floor and its construction method |
| CN212802185U (en) * | 2020-06-30 | 2021-03-26 | 天津竟盛新型建材有限公司 | Prefabricated steel bar truss floor of assembled form removal-free |
| CN112647632A (en) * | 2020-12-18 | 2021-04-13 | 重庆市镁晶防火材料有限公司 | Production process of non-demolition-die assembled composite floor slab |
| CN213143545U (en) * | 2021-03-01 | 2021-05-07 | 承德建元科技股份有限公司 | Exempt from to tear open mould steel bar truss building carrier plate |
| CN214884744U (en) * | 2021-04-25 | 2021-11-26 | 重庆涛扬绿建科技有限公司 | Half prefabricated formwork removal-free steel bar truss floor based on uhpc |
-
2021
- 2021-12-07 CN CN202111484236.3A patent/CN114059703A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150145156A1 (en) * | 2012-05-08 | 2015-05-28 | Kunshan Ecological Building Technology Co., Ltd. | Method of casting in-situ ferrocement ribbed slab with spliced rack and suspended formwork |
| CN111608308A (en) * | 2020-05-19 | 2020-09-01 | 黄通 | Distributed three-dimensional factory floor and preparation method |
| CN111851825A (en) * | 2020-06-30 | 2020-10-30 | 天津竟盛新型建材有限公司 | A prefabricated formwork-free prefabricated steel truss floor and its construction method |
| CN212802185U (en) * | 2020-06-30 | 2021-03-26 | 天津竟盛新型建材有限公司 | Prefabricated steel bar truss floor of assembled form removal-free |
| CN112647632A (en) * | 2020-12-18 | 2021-04-13 | 重庆市镁晶防火材料有限公司 | Production process of non-demolition-die assembled composite floor slab |
| CN213143545U (en) * | 2021-03-01 | 2021-05-07 | 承德建元科技股份有限公司 | Exempt from to tear open mould steel bar truss building carrier plate |
| CN214884744U (en) * | 2021-04-25 | 2021-11-26 | 重庆涛扬绿建科技有限公司 | Half prefabricated formwork removal-free steel bar truss floor based on uhpc |
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Application publication date: 20220218 |