CN108005285B - Multilayer superimposed sheet with adjustable steel reinforcement skeleton interval - Google Patents
Multilayer superimposed sheet with adjustable steel reinforcement skeleton interval Download PDFInfo
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- CN108005285B CN108005285B CN201810059958.6A CN201810059958A CN108005285B CN 108005285 B CN108005285 B CN 108005285B CN 201810059958 A CN201810059958 A CN 201810059958A CN 108005285 B CN108005285 B CN 108005285B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 230000002787 reinforcement Effects 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 239000010902 straw Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 3
- 239000002154 agricultural waste Substances 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a multi-layer laminated plate with adjustable distance between reinforcement cages, which is formed by laminating a prefabricated bottom plate, a laminated layer bottom layer and a laminated layer top layer in a multi-layer manner. The prefabricated bottom plate and the top layer of the laminated layer are made of common concrete, and the top layer of the laminated layer is made of straw fiber lightweight aggregate concrete or recycled concrete. The bottom of the prefabricated bottom plate is provided with two-way reinforcing bars, the longitudinal steel bar framework connected between the bottom plate and the superposed layers is formed by connecting two single-piece ladder-type steel bar frameworks through s-shaped single-limb stirrups, and each single-piece ladder-type steel bar framework consists of an upper longitudinal steel bar, a lower longitudinal steel bar and a plurality of pairs of ] [ shape steel bars between the welding and the longitudinal steel bars. The longitudinal edges of the prefabricated bottom plates are provided with plate ribs, steel bars are arranged in the plate ribs, and the plate ribs can be connected through bolts. The longitudinal reinforcement cage of the laminated slab is convenient and quick to construct, the distance is adjustable, and the bearing capacity is high; the integrity is enhanced after the plate ribs are connected, and the deformation is coordinated; the bottom layer of the laminated layer can realize reutilization of industrial and agricultural wastes, and is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to an assembled integral floor slab, in particular to a multilayer laminated slab.
Background
With the acceleration of the urban and building industrialization processes, the number of assembled integral buildings is more and the application range is more and more extensive. Compared with the cast-in-situ structure, the assembled integral structure can accelerate the construction progress, saves the construction period, and has good integrity and anti-seismic performance compared with the assembled structure. The laminated sheet is used as a member in the assembled integral structure, and engineering application of the laminated sheet is becoming wider and wider.
The steel bar frameworks in the existing laminated slab prefabricated bottom plate commonly adopt right-angle steel bar trusses, and although the steel bar trusses can better realize the connection between prefabricated components and laminated layers to realize the joint work of the prefabricated components and the laminated layers, the right-angle steel bar trusses are complex in processing, consume manpower and can not be adjusted at will in the distance between main bars at the bottom; the intersection of the prefabricated bottom plates of the superimposed sheet is easy to crack due to uncoordinated deformation; in addition, the connection between the prefabricated bottom plates of the superimposed sheet is to be reinforced.
Disclosure of Invention
In order to solve the problems of complex construction of prefabricated steel bar trusses and the integrity and rigidity between the bottom plates of the superimposed sheet in the prior superimposed sheet, the invention provides a method for manufacturing the composite sheet
The multi-layer laminated slab with adjustable distance between the steel reinforcement frameworks adopts a single ladder-type steel reinforcement framework as a connecting tie between the prefabricated bottom plate and the laminated layer, the prefabricated bottom plate is provided with side ribs, and the side ribs are connected through bolts, so that the integrity is enhanced. The bottom layer of the laminated layer is made of straw fiber lightweight aggregate concrete or recycled concrete, the top layer is made of common concrete by multi-layer lamination, the material is fully utilized, and the overall working performance is good.
The technical scheme adopted for solving the technical problems is as follows: the multi-layer laminated slab with adjustable distance between the steel bar skeletons comprises a prefabricated bottom plate, a laminated layer bottom layer and a laminated layer top layer, and is formed by multi-layer lamination. The steel bars in the prefabricated bottom plates are arranged in a bidirectional mode through common steel bars, the connecting bottom plates and the longitudinal steel bar frameworks among the superposed layers are formed by connecting two single-piece ladder-type steel bar frameworks through s-shaped single-limb stirrups, the single-piece ladder-type longitudinal steel bar frameworks are arranged at proper positions according to requirements, and the distance can be adjusted according to design requirements. The longitudinal edge of the prefabricated bottom plate is provided with a plate rib, the plate rib is internally provided with a steel reinforcement framework formed by assembling two single-piece ladder-type steel reinforcement frameworks, bolt holes are reserved in the plate rib, and the plate ribs are connected through the bolt holes. The bottom layer of the laminated layer adopts straw fiber lightweight aggregate concrete or recycled concrete, and the top layer adopts common concrete.
The single-piece ladder-type steel bar framework of the multi-layer laminated slab with the adjustable space between the steel bar frameworks is formed by welding an upper longitudinal steel bar and a lower longitudinal steel bar through a plurality of groups of ] [ shape steel bars.
The multi-layer laminated slab with the adjustable distance between the steel reinforcement frameworks is characterized in that the longitudinal middle part of the prefabricated bottom plate is provided with the plate ribs according to the requirement except for the longitudinal edges of the prefabricated bottom plate so as to strengthen the rigidity of the prefabricated bottom plate.
The beneficial effects of the invention are as follows: the multi-layer laminated slab with adjustable spacing of the steel bar frameworks is formed by connecting two single-piece ladder-type steel bar frameworks through s-shaped single-limb stirrups, is convenient to construct, can adjust the spacing of the steel bar trusses according to design requirements, increases the bonding between the steel bars and the concrete, and improves the bearing capacity of the components; the longitudinal edges of the prefabricated bottom plates are provided with plate ribs, the plate ribs can be connected through bolts, the integrity of the components can be improved, the deformation coordination of the joints of the bottom plates is realized, and the rigidity of the bottom plates during the construction of the laminated layers is improved; the bottom layer of the laminated layer is near the neutral layer, so that the tensile stress is small, and the straw fiber lightweight aggregate concrete or the recycled concrete is adopted, so that industrial and agricultural waste recycling can be realized on the premise of meeting the safety of components, and the environment is protected.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a single-piece ladder-type reinforcement cage.
Fig. 2 is a diagram of two monolithic ladder-type rebar frameworks connected by an s-shaped single-limb stirrup and poured with concrete.
Fig. 3 shows a longitudinal and transverse reinforcement cage in a prefabricated base plate.
Fig. 4 is a multi-layer laminated slab with adjustable reinforcement cage spacing.
In the figure, the steel bars are 1, 2, and are shaped, the steel bars are 3, 4.s, 5, transverse steel bars, 6, prefabricated bottom plates, 7, plate ribs, 8, reserved bolt holes, 9, hanging rings, 10, a laminated bottom layer and 11, a laminated top layer.
Detailed Description
The multi-layer laminated slab with the adjustable distance between the steel reinforcement frameworks is formed by laminating a prefabricated bottom plate 6, a laminated layer bottom layer 10 and a laminated layer top layer 11 in a multi-layer mode, wherein the prefabricated bottom plate 6 and the laminated layer top layer 11 are made of common concrete, and the laminated layer bottom layer 10 is made of straw fiber lightweight aggregate concrete or recycled concrete.
1. Prefabricated bottom plate
Longitudinal and transverse steel bars are paved at the bottom of the prefabricated bottom plate 6, wherein the longitudinal steel bars are divided into two types, one type is the longitudinal steel bar 1 in the single-sheet ladder-type steel bar framework, the longitudinal steel bar 1 is welded and connected through the [ shape steel bar 2 and the [ shape steel bar 3 ] to form the single-sheet ladder-type steel bar framework, and the two single-sheet ladder-type steel bar frameworks are connected into the steel bar framework in the plate rib 7 or the steel bar framework connected between the prefabricated bottom plate 6 and the superposed layers through the s-shaped single-limb stirrups 4. The other type is common longitudinal steel bars, which are paved according to design requirements. The longitudinal edges of the prefabricated bottom plate 6 are provided with plate ribs 7, and the middle part of the prefabricated bottom plate 6 can be provided with plate ribs according to construction requirements. Bolt holes 8 are reserved in the plate ribs 7, and hanging rings 9 are arranged inside four corners of the prefabricated bottom plate. And (5) pouring concrete after the reinforcement engineering and the template engineering are completed, and curing according to requirements. And after the strength reaches the requirement, the steel can be transported and hoisted.
2. Superimposed sheet
And (3) hoisting and positioning the prefabricated bottom plates according to construction requirements, connecting the plate ribs 7 through bolts, paving plate surface steel bars, pouring concrete on the bottom layer 10 of the laminated slab, pouring concrete on the top layer 11 of the laminated slab before initial setting of the concrete on the bottom layer, and curing according to requirements.
Claims (4)
1. The utility model provides a multilayer superimposed sheet with adjustable steel reinforcement skeleton interval, is formed by prefabricated bottom plate (6) and superimposed layer bottom (10) and superimposed layer top layer (11) multilayer coincide, its characterized in that: the longitudinal reinforcement framework connected between the prefabricated bottom plate (6) and the superposed layers is formed by connecting single ladder-shaped reinforcement frameworks through s-shaped single limb stirrups (4), the longitudinal edge of the prefabricated bottom plate (6) is provided with a plate rib (7), and the bottom layer (10) of the superposed layers adopts straw fiber lightweight aggregate concrete or recycled concrete;
the longitudinal edge plates of the prefabricated bottom plate (6) are connected through bolts;
the longitudinal steel skeleton is arranged between the two plate ribs (7).
2. The multi-layer laminated slab with adjustable spacing of the steel reinforcement framework according to claim 1, wherein the single ladder-type steel reinforcement framework is formed by welding longitudinal steel bars (1) in the framework with paired [ shape steel bars (2) and [ shape steel bars (3).
3. The multi-layer laminated slab with adjustable distance between steel reinforcement frameworks according to claim 1, wherein longitudinal edge plate ribs (7) of the prefabricated bottom plate (6) are rectangular, and the steel reinforcement frameworks in the plate ribs (7) are formed by connecting single-piece ladder-type steel reinforcement frameworks through s-shaped single-limb stirrups (4); the distance between the single ladder type steel ribs is determined according to the size of the plate ribs.
4. A multi-layered laminate with adjustable reinforcement cage spacing according to claim 1, characterized in that the prefabricated base plate (6) is provided with internal longitudinal plate ribs as required in addition to the edge plate ribs (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059958.6A CN108005285B (en) | 2018-01-22 | 2018-01-22 | Multilayer superimposed sheet with adjustable steel reinforcement skeleton interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059958.6A CN108005285B (en) | 2018-01-22 | 2018-01-22 | Multilayer superimposed sheet with adjustable steel reinforcement skeleton interval |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005285A CN108005285A (en) | 2018-05-08 |
| CN108005285B true CN108005285B (en) | 2024-01-30 |
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| CN201810059958.6A Active CN108005285B (en) | 2018-01-22 | 2018-01-22 | Multilayer superimposed sheet with adjustable steel reinforcement skeleton interval |
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2018
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| CN108005285A (en) | 2018-05-08 |
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