CN114837336A - Semi-fabricated concrete floor - Google Patents
Semi-fabricated concrete floor Download PDFInfo
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- CN114837336A CN114837336A CN202110137488.2A CN202110137488A CN114837336A CN 114837336 A CN114837336 A CN 114837336A CN 202110137488 A CN202110137488 A CN 202110137488A CN 114837336 A CN114837336 A CN 114837336A
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- 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
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Abstract
The invention relates to a semi-fabricated concrete floor slab, which mainly comprises a finished product reinforced concrete bottom plate, a wire mesh, a finished product reinforcing mesh, an inward concave round opening, a reinforcing steel bar drag hook, a post-cast reinforced concrete top plate, an upper layer reinforcing mesh, splicing reinforcing steel bars, connecting reinforcing steel bars and a connecting plate; a bottom layer structure of a semi-fabricated concrete floor slab is formed by splicing a plurality of finished reinforced concrete bottom plates and connecting plates; the upper layer structure of a semi-fabricated concrete floor slab is a post-cast reinforced concrete roof slab; a finished product reinforcing mesh is arranged in the middle of the finished product reinforced concrete bottom plate; an inward concave round opening is formed in the upper surface of the finished reinforced concrete bottom plate; when the semi-fabricated concrete floor slab is used, the finished reinforced concrete bottom slabs and the connecting plates are combined and spliced on the templates on the side edges of the beams, all the finished reinforced concrete bottom slabs are connected together through the splicing steel bars and the connecting steel bars, then the upper layer of steel bar net is arranged on the upper side of the finished reinforced concrete bottom slabs, and finally concrete is poured on the upper layer of steel bar net, so that the construction work of the semi-fabricated concrete floor slab can be completed.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a semi-fabricated concrete floor slab.
Background
The traditional building floor slab is generally constructed by firstly erecting a formwork, arranging reinforcing steel bars and finally pouring concrete, so that the constructed concrete floor slab has the defects of poor heat insulation performance, long construction period, high construction noise, excessive generated building wastes, serious pollution, high construction cost and the like although the strength is higher. Modern prefabricated buildings exist at the time of construction: the transportation is difficult, the components are too big, the hoisting difficulty is big, the construction cost is high and the like. The present invention has been made in view of the above problems, and provides a semi-fabricated concrete floor slab, which is technically characterized in that: the method has the advantages of reducing formwork supporting links, reducing construction cost, being simple to hoist, improving the thermal insulation performance of the building, being high in construction speed and the like.
Disclosure of Invention
The purpose of the invention is as follows: the semi-fabricated concrete floor slab has the advantages of high assembling speed, easiness in hoisting, reduction of building load, energy conservation and environmental friendliness.
The invention content is as follows: the invention relates to a semi-fabricated concrete floor slab, which mainly comprises a finished product reinforced concrete bottom plate, a wire mesh, a finished product reinforcing mesh, an inward concave round opening, a reinforcing steel bar drag hook, a post-cast reinforced concrete top plate, an upper layer reinforcing mesh, splicing reinforcing steel bars, connecting reinforcing steel bars and a connecting plate; a bottom layer structure of a semi-fabricated concrete floor slab is formed by splicing a plurality of finished reinforced concrete bottom plates and connecting plates; the upper layer structure of a semi-fabricated concrete floor slab is a post-cast reinforced concrete roof slab; a finished product reinforcing mesh is arranged in the middle of the finished product reinforced concrete bottom plate; an inward concave round opening is formed in the upper surface of the finished reinforced concrete bottom plate; when the semi-fabricated concrete floor slab is used, the finished reinforced concrete bottom slabs and the connecting plates are combined and spliced on the templates on the side edges of the beams, all the finished reinforced concrete bottom slabs are connected together through the splicing steel bars and the connecting steel bars, then the upper layer of steel bar net is arranged on the upper side of the finished reinforced concrete bottom slabs, and finally concrete is poured on the upper layer of steel bar net, so that the construction work of the semi-fabricated concrete floor slab can be completed.
The finished reinforced concrete bottom plate is a bottom layer structure of a semi-fabricated concrete floor slab; the upper side of the side edge of the finished reinforced concrete bottom plate is an inward inclined plane, the bottom side of the side edge of the finished reinforced concrete bottom plate is an extension plate, the extension plate is an outward extension structure of the finished reinforced concrete bottom plate, and when the two finished reinforced concrete bottom plates are spliced, the two finished reinforced concrete bottom plates are spliced at the side edge positions of the extension plate; the finished product reinforcing mesh is arranged in the middle of the finished product reinforced concrete bottom plate, two ends of a transverse reinforcing bar and two ends of a longitudinal reinforcing bar of the finished product reinforcing mesh penetrate out of the inward inclined plane, and reinforcing bar hooks are arranged at two ends of the transverse reinforcing bar and two ends of the longitudinal reinforcing bar and are used for increasing the tensile strength of the finished product reinforced concrete bottom plate; the transverse steel bars and the longitudinal steel bars are arranged vertically to each other; the upper surface of the finished reinforced concrete bottom plate is provided with an inward concave round opening for increasing the connection strength of the finished reinforced concrete bottom plate and the post-cast reinforced concrete top plate; the upper side surface and the bottom surface of the finished reinforced concrete bottom plate are both provided with wire meshes, so that the bending strength of the finished reinforced concrete bottom plate is increased, and the breakage rate during transportation and hoisting is reduced.
The finished reinforced concrete bottom plate and the connecting plate can be made of common concrete or light concrete (foam concrete); the concrete material of the finished reinforced concrete base plate can be preferably foamed concrete so as to improve the heat insulation performance of the house building, and meanwhile, the weight of the finished reinforced concrete base plate is reduced, so that the finished reinforced concrete base plate is convenient to transport and hoist.
The connecting plate is a finished concrete plate and is mainly used for filling a gap generated when a finished reinforced concrete bottom plate cannot be fully paved into a building floor slab; the upper surface and the lower surface of the connecting plate are provided with connecting silk screens for increasing the bending strength of the connecting plate; the thickness of the connecting plate is the same as that of the extension plate; when the finished reinforced concrete bottom plate cannot be fully paved on a building floor slab, the side edges of the connecting plates and the side edges of the extending plates can be utilized for splicing, and gaps between the finished reinforced concrete bottom plate and beams, pillars or other building components are filled.
The wire mesh can be made of metal or fiber materials, and the wire mesh is arranged on the upper surface and the bottom surface of each finished reinforced concrete bottom plate to enhance the bending strength of the finished reinforced concrete bottom plate; the wire mesh arranged on the finished reinforced concrete bottom plate is called as an upper wire mesh for short, and the grid of the upper wire mesh is larger, so that the influence of the finished reinforced concrete bottom plate and the post-cast reinforced concrete top plate when being connected can be reduced; the silk screen that sets up at finished product reinforced concrete bottom plate bottom is called the bottom silk screen for short, and the net of bottom silk screen is less, bonding ability when improving the later stage puttying.
The inner concave round openings are round openings which are inwards concave on the finished reinforced concrete bottom plates, and a plurality of inner concave round openings are arranged on each finished reinforced concrete bottom plate; the inner concave round opening is arranged at the position where the transverse steel bar and the longitudinal steel bar are vertically crossed; the depth of the concave round opening reaches the position below the finished product reinforcing mesh; as shown in fig. 12-15, the inward-concave round openings can be arranged at the crossing positions of the finished reinforcing steel bar meshes by adopting a japanese-shaped arrangement, a field-shaped arrangement, a diagonal point arrangement or a full-paved arrangement; the finished reinforced concrete bottom plate and the post-cast reinforced concrete top plate can be connected more stably through the inward concave round opening; the arrangement of the inward concave round opening can provide a connecting fulcrum for the finished product of the reinforcing mesh and the upper layer of the reinforcing mesh, so that a special chord support structure is formed, and the stability of the floor slab is improved.
The steel bar drag hook is arranged in the concave round opening, and the bottom hook of the steel bar drag hook is hooked on the finished steel bar net; the upper hook of the steel bar drag hook is arranged in the inner concave round opening in a hanging manner, so that the finished reinforced concrete bottom plate can be conveniently hoisted and transported, and meanwhile, the connection stability of the finished reinforced concrete bottom plate and the post-cast reinforced concrete top plate can be improved.
The post-cast reinforced concrete top plate is an upper floor structure of a semi-fabricated concrete floor; the post-cast reinforced concrete top plate is a reinforced concrete floor slab formed by pouring after an upper layer of reinforcing mesh is arranged on the basis of a finished reinforced concrete bottom plate and a connecting plate.
The two ends of the connecting steel bar are provided with hooks, and the connecting steel bar is mainly used for connecting the two finished reinforced concrete bottom plates together; when the distance between the two finished reinforced concrete bottom plates is larger, or a beam or a connecting plate is clamped between the two finished reinforced concrete bottom plates, connecting reinforcing steel bars can be adopted for connection, and hooks of the connecting reinforcing steel bars are hooked on hooks of two adjacent reinforcing steel bars, so that the connection between the two finished reinforced concrete bottom plates can be realized.
When the distance between the two finished reinforced concrete bottom plates is larger, or when a beam or a connecting plate is clamped between the two finished reinforced concrete bottom plates, a reinforcing steel bar oblique angle can be arranged at the contact position of the finished reinforcing steel bar mesh corresponding to the two adjacent finished reinforced concrete bottom plates and the inward inclined plane, so that an elastic force is provided for the reinforcing steel bar hook, and the connecting reinforcing steel bar is convenient to install.
When the splicing reinforcing steel bars are applied to the mutual splicing of two finished reinforced concrete base plates, the finished reinforcing steel bar meshes between the two finished reinforced concrete base plates are staggered, reinforcing steel bar hooks of two adjacent finished reinforcing steel bar meshes can be crossed with each other to form a long crossed hole, the splicing reinforcing steel bars are inserted into the long crossed hole, and then the splicing reinforcing steel bars and the adjacent reinforcing steel bar hooks are bound together by iron wires, so that the connection between the two finished reinforced concrete base plates can be realized.
Firstly, building templates of columns and beams, then overlapping scaffolds for supporting finished reinforced concrete bottom plates, and then fully paving the finished reinforced concrete bottom plates on the scaffolds; overlapping the extension plate of the finished reinforced concrete bottom plate on the template; when the finished reinforced concrete bottom plate is fully paved on the scaffold, the connecting plate is required to be adopted for filling; the connecting steel bars and the inserting steel bars are used for connecting the steel bar hooks of the adjacent finished product reinforced concrete bottom plates, then the upper layer steel bar net is arranged, concrete is poured on the upper layer steel bar net, and finally the poured concrete is vibrated and leveled, so that the installation and pouring work of the semi-assembly type concrete floor slab can be realized.
Description of the drawings:
FIG. 1: a plan view of the finished reinforced concrete floor;
FIG. 2: mapping a first map on an axis of the finished reinforced concrete bottom plate;
FIG. 3: drawing an axonometric view II of the finished reinforced concrete bottom plate;
FIG. 4: a cross-sectional perspective view of the finished reinforced concrete floor;
FIG. 5: a perspective cutaway view of a semi-fabricated concrete floor;
FIG. 6: detailed position diagrams of connecting steel bars of a semi-fabricated concrete floor slab;
FIG. 7: a detailed position diagram of longitudinal splicing steel bars of a semi-fabricated concrete floor slab;
FIG. 8: a section detail view of a finished reinforced concrete bottom plate;
FIG. 9: a detailed cross-sectional view of a semi-fabricated concrete floor;
FIG. 10: a section detail view of the connecting position of a semi-fabricated concrete floor slab and a beam;
FIG. 11: sectional detail drawing of finished reinforced concrete bottom plate and connecting plate
FIG. 12 is a schematic view of a "B-shaped arrangement" of the inner concave round;
FIG. 13 is a schematic view of a "rectangular arrangement" of the inner concave round;
FIG. 14 is a schematic view of the "diagonal" arrangement of the notches;
fig. 15 is a schematic view of a full-spread arrangement of the inner round openings.
The labels in the figure are:
1-finished reinforced concrete bottom plate; 1A-an extension plate; 1B-inwardly inclined surface; 2-a silk screen; 2A-upper layer silk screen; 2B-bottom screen; 3-finished reinforcing mesh; 3A-transverse steel bar; 3B-longitudinal steel bars; 3C-steel bar hook; 3D-steel bar bevel angle; 4-an inward concave round mouth; 5-a steel bar draw hook; 6-post-casting a reinforced concrete top plate; 7-upper layer reinforcing mesh; 7A-inserting steel bars; 8-connecting reinforcing steel bars; 10-a connecting plate; 10A-connecting the screen; 9-beam; 9A-template; 11-column.
Detailed Description
The invention discloses a semi-fabricated concrete floor, which comprises a finished reinforced concrete bottom plate (1), a wire mesh (2), a finished reinforcing mesh (3), an inward concave round opening (4), a reinforcing hook (5), a post-cast reinforced concrete top plate (6), an upper reinforcing mesh (7), splicing reinforcing steel bars (7A), connecting reinforcing steel bars (8) and a connecting plate (10), and is characterized in that: a bottom layer structure of a semi-fabricated concrete floor slab is formed by splicing a plurality of finished reinforced concrete bottom plates (1) and connecting plates (9); the upper layer structure of the semi-fabricated concrete floor slab is a post-cast reinforced concrete roof slab (6); the middle of the finished reinforced concrete bottom plate (1) is provided with a finished reinforcing mesh (3); an inward concave round opening (4) is arranged on the finished reinforced concrete bottom plate (1); when the semi-fabricated concrete floor slab is used, the finished reinforced concrete bottom slab (1) and the connecting plate (10) are combined and spliced on the template (9A) on the side edge of the beam (9), all the finished reinforced concrete bottom slabs (1) are connected together through the splicing reinforcing bars (7A) and the connecting reinforcing bars (8), then the upper reinforcing mesh (7) is arranged on the upper side of the finished reinforced concrete bottom slab (1), and finally concrete is poured on the upper reinforcing mesh (7), so that the construction work of the semi-fabricated concrete floor slab can be completed.
The finished reinforced concrete bottom plate (1) is a bottom layer structure of a semi-fabricated concrete floor slab; the upper side of the side edge of the finished reinforced concrete bottom plate (1) is provided with an inward inclined surface (1B), the bottom side of the side edge of the finished reinforced concrete bottom plate (1) is provided with an extension plate (1A), the extension plate (1A) is an outward extension structure of the finished reinforced concrete bottom plate (1), and when the two finished reinforced concrete bottom plates (1) are spliced, the two finished reinforced concrete bottom plates are spliced at the side edge position of the extension plate (1A); the finished product reinforced concrete bottom plate (1) is provided with a finished product reinforced mesh (3) in the middle, two ends of a transverse reinforcing steel bar (3A) and a longitudinal reinforcing steel bar (3B) of the finished product reinforced mesh (3) penetrate out of the inward inclined plane (1B), and two ends of the transverse reinforcing steel bar (3A) and the longitudinal reinforcing steel bar (3B) are provided with reinforcing steel bar hooks (3C) for increasing the tensile strength of the finished product reinforced concrete bottom plate (1); the transverse steel bars (3A) and the longitudinal steel bars (3B) are arranged perpendicular to each other; the upper surface of the finished reinforced concrete bottom plate (1) is provided with an inward concave round opening (4) for increasing the connection strength of the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6); the upper side surface and the bottom surface of the finished reinforced concrete bottom plate (1) are provided with the wire mesh (2) respectively, so that the bending strength of the finished reinforced concrete bottom plate (1) is increased, and the damage rate during transportation and hoisting is reduced.
The finished reinforced concrete bottom plate (1) and the connecting plate (10) can be made of common concrete or lightweight concrete (foam concrete); the concrete material of the finished reinforced concrete bottom plate (1) can be preferably foamed concrete to improve the heat insulation performance of the house building, and meanwhile, the weight of the finished reinforced concrete bottom plate (1) is reduced, so that the finished reinforced concrete bottom plate is convenient to transport and hoist.
The connecting plate (10) is a finished concrete plate, and the connecting plate (10) is mainly used for filling a gap generated when the finished reinforced concrete bottom plate (1) cannot be fully paved into a building floor slab; the upper surface and the lower surface of the connecting plate (10) are provided with connecting silk screens (10A) for increasing the bending strength of the connecting plate (10); the thickness of the connecting plate (10) is the same as that of the extension plate (1A); when the finished reinforced concrete bottom plate (1) cannot be fully paved on a building floor, the side edges of the connecting plates (10) and the side edges of the extending plates (1A) can be used for splicing, and gaps among the finished reinforced concrete bottom plate (1), the beams (9), the pillars or other building components are filled.
The wire mesh (2) can be made of metal or fiber materials, the wire mesh (2) is arranged on the upper surface and the bottom surface of each finished reinforced concrete bottom plate (1), and the bending strength of the finished reinforced concrete bottom plates (1) is enhanced; the wire mesh (2) arranged on the finished reinforced concrete bottom plate (1) is called as an upper wire mesh (2A) for short, and the grid of the upper wire mesh (2A) is larger, so that the influence of the finished reinforced concrete bottom plate (1) when being connected with the post-cast reinforced concrete top plate (6) can be reduced; the wire mesh (2) arranged at the bottom layer of the finished reinforced concrete bottom plate (1) is called as a bottom wire mesh (2B) for short, the mesh of the bottom wire mesh (2B) is smaller, and the bonding capability during later-stage putty scraping is improved.
The inner concave round openings (4) are round openings which are concave on the finished reinforced concrete base plates (1), and a plurality of inner concave round openings (4) are arranged on each finished reinforced concrete base plate (1); the inner concave round opening (4) is arranged at the position where the transverse steel bar (3A) and the longitudinal steel bar (3B) are vertically crossed; the depth of the inner concave round mouth (4) reaches the position below the finished product reinforcing mesh (3); as shown in fig. 12-15, the inner concave round openings (4) can be arranged at the crossing positions of the finished reinforcing mesh (3) in a herringbone arrangement, a field-shaped arrangement, a diagonal arrangement or a full-spread arrangement; the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6) can be connected more stably through the concave round opening (4); the arrangement of the inward concave round opening (4) can provide a connecting fulcrum for the finished product reinforcing mesh (3) and the upper layer reinforcing mesh (7), so that a special chord support structure is formed, and the stability of the floor slab is improved.
The steel bar drag hook (5) is arranged in the concave round opening (4), and the bottom hook of the steel bar drag hook (5) is hooked on the finished steel bar mesh (3); the upper hook of the steel bar draw hook (5) is arranged in the inner concave round opening (4) in a hanging manner, so that the finished reinforced concrete bottom plate (1) can be conveniently hoisted and transported, and meanwhile, the connection stability of the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6) can be improved.
The post-cast reinforced concrete top plate (6) is an upper floor structure of a semi-fabricated concrete floor; the post-cast reinforced concrete top plate (6) is a reinforced concrete floor slab formed by pouring after an upper layer of reinforcing mesh (7) is arranged on the basis of the finished reinforced concrete bottom plate (1) and the connecting plate (10).
Hooks are arranged at two ends of each connecting steel bar (8), and each connecting steel bar (8) is mainly used for connecting two finished reinforced concrete bottom plates (1) together; when the distance between the two finished reinforced concrete bottom plates (1) is large, or when a beam (9) or a connecting plate (10) is clamped between the two finished reinforced concrete bottom plates (1), connecting reinforcing steel bars (8) can be adopted for connection, hooks of the connecting reinforcing steel bars (8) are hooked on hooks (3C) of two adjacent reinforcing steel bars, and then the connection between the two finished reinforced concrete bottom plates (1) can be realized.
When the distance between two finished reinforced concrete base plates (1) is large, or when a beam (9) or a connecting plate (10) is clamped between the two finished reinforced concrete base plates (1), a reinforcing steel bar oblique angle (3D) can be arranged at the contact position between a finished reinforcing steel bar mesh (3) corresponding to two adjacent finished reinforced concrete base plates (1) and an inward inclined plane (1B) and is used for providing elastic force for a reinforcing steel bar hook (3C) and facilitating installation of a connecting reinforcing steel bar (8).
When the splicing reinforcing steel bars (7A) are applied to the mutual splicing of two finished reinforced concrete base plates (1), the finished reinforcing steel bar meshes (3) between the two finished reinforced concrete base plates (1) are mutually staggered, reinforcing steel bar hooks (3C) of two adjacent finished reinforcing steel bar meshes (3) can be mutually crossed to form a long crossed hole, the splicing reinforcing steel bars (7A) are inserted into the long crossed hole, and then the splicing reinforcing steel bars (7A) and the adjacent reinforcing steel bar hooks (3C) are bound together by using iron wires, so that the connection between the two finished reinforced concrete base plates (1) can be realized.
When the method is applied, the templates (9A) of the columns (11) and the beams (9) are built, then scaffolds for supporting the finished reinforced concrete bottom plates (1) are lapped, and then the finished reinforced concrete bottom plates (1) are fully paved on the scaffolds; overlapping an extension plate (1A) of the finished reinforced concrete bottom plate (1) on a template (9A); when the finished reinforced concrete bottom plate (1) is fully paved on a scaffold, a connecting plate (10) is needed to be used for filling; the steel bar hooks (3C) of the adjacent finished product reinforced concrete bottom plates (1) are connected by utilizing the connecting steel bars (8) and the inserting steel bars (7A), then the upper layer steel bar net (7) is arranged, concrete is poured on the upper layer steel bar net (7), and finally the poured concrete is vibrated and leveled, so that the installation and pouring work of the semi-assembly type concrete floor slab can be realized.
Claims (10)
1. The invention discloses a semi-assembled concrete floor slab, which comprises a finished product reinforced concrete bottom plate (1), a wire mesh (2), a finished product reinforcing mesh (3), an inward concave round opening (4), a reinforcing steel bar draw hook (5), a post-cast reinforced concrete top plate (6), an upper layer reinforcing mesh (7), splicing reinforcing steel bars (7A), connecting reinforcing steel bars (8) and a connecting plate (10), and is characterized in that: a bottom layer structure of a semi-fabricated concrete floor slab is formed by splicing a plurality of finished reinforced concrete bottom plates (1) and connecting plates (9); the upper layer structure of the semi-fabricated concrete floor slab is a post-cast reinforced concrete roof slab (6); a finished product reinforcing mesh (3) is arranged in the middle of the finished product reinforced concrete bottom plate (1); an inward concave round opening (4) is arranged on the finished reinforced concrete bottom plate (1); when the semi-fabricated concrete floor slab is used, the finished reinforced concrete bottom slab (1) and the connecting plate (10) are combined and spliced on the template (9A) on the side edge of the beam (9), all the finished reinforced concrete bottom slabs (1) are connected together through the splicing reinforcing bars (7A) and the connecting reinforcing bars (8), then the upper reinforcing mesh (7) is arranged on the upper side of the finished reinforced concrete bottom slab (1), and finally concrete is poured on the upper reinforcing mesh (7), so that the construction work of the semi-fabricated concrete floor slab can be completed.
2. A semi-fabricated concrete floor according to claim 1, characterized in that: the finished reinforced concrete bottom plate (1) is a bottom layer structure of a semi-fabricated concrete floor slab; the upper side of the side edge of the finished reinforced concrete bottom plate (1) is provided with an inward inclined surface (1B), the bottom side of the side edge of the finished reinforced concrete bottom plate (1) is provided with an extension plate (1A), the extension plate (1A) is an outward extension structure of the finished reinforced concrete bottom plate (1), and when the two finished reinforced concrete bottom plates (1) are spliced, the two finished reinforced concrete bottom plates are spliced at the side edge position of the extension plate (1A); the finished product reinforced concrete bottom plate (1) is provided with a finished product reinforced mesh (3) in the middle, two ends of a transverse reinforcing steel bar (3A) and a longitudinal reinforcing steel bar (3B) of the finished product reinforced mesh (3) penetrate out of the inward inclined plane (1B), and two ends of the transverse reinforcing steel bar (3A) and the longitudinal reinforcing steel bar (3B) are provided with reinforcing steel bar hooks (3C) for increasing the tensile strength of the finished product reinforced concrete bottom plate (1); the transverse steel bars (3A) and the longitudinal steel bars (3B) are arranged perpendicular to each other; the upper surface of the finished reinforced concrete bottom plate (1) is provided with an inward concave round opening (4) for increasing the connection strength of the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6); the upper side surface and the bottom surface of the finished reinforced concrete bottom plate (1) are provided with the wire mesh (2) respectively, so that the bending strength of the finished reinforced concrete bottom plate (1) is increased, and the damage rate during transportation and hoisting is reduced.
3. A semi-fabricated concrete floor according to claim 1, characterized in that: the finished reinforced concrete bottom plate (1) and the connecting plate (10) can be made of common concrete or lightweight concrete (foam concrete); the concrete material of the finished reinforced concrete bottom plate (1) can be preferably foamed concrete to improve the heat insulation performance of the house building, and meanwhile, the weight of the finished reinforced concrete bottom plate (1) is reduced, so that the finished reinforced concrete bottom plate is convenient to transport and hoist.
4. A semi-fabricated concrete floor according to claim 1, characterized in that: the connecting plate (10) is a finished concrete plate, and the connecting plate (10) is mainly used for filling a gap generated when the finished reinforced concrete bottom plate (1) cannot be fully paved into a building floor slab; the upper surface and the lower surface of the connecting plate (10) are provided with connecting silk screens (10A) for increasing the bending strength of the connecting plate (10); the thickness of the connecting plate (10) is the same as that of the extension plate (1A); when the finished reinforced concrete bottom plate (1) cannot be fully paved on a building floor, the side edges of the connecting plates (10) and the side edges of the extending plates (1A) can be used for splicing, and gaps among the finished reinforced concrete bottom plate (1), the beams (9), the pillars or other building components are filled.
5. A semi-fabricated concrete floor according to claim 1, wherein: the wire mesh (2) can be made of metal or fiber, the wire mesh (2) is arranged on the upper surface and the bottom surface of each finished reinforced concrete bottom plate (1), and the bending strength of the finished reinforced concrete bottom plates (1) is enhanced; the wire mesh (2) arranged on the finished reinforced concrete bottom plate (1) is called as an upper wire mesh (2A) for short, and the grid of the upper wire mesh (2A) is larger, so that the influence of the finished reinforced concrete bottom plate (1) when being connected with the post-cast reinforced concrete top plate (6) can be reduced; the wire mesh (2) arranged at the bottom layer of the finished reinforced concrete bottom plate (1) is called as a bottom wire mesh (2B) for short, the mesh of the bottom wire mesh (2B) is smaller, and the bonding capability during later-stage putty scraping is improved.
6. A semi-fabricated concrete floor according to claim 1, characterized in that: the inward-concave round openings (4) are round openings which are inward-concave on the finished reinforced concrete base plates (1), and a plurality of inward-concave round openings (4) are arranged on each finished reinforced concrete base plate (1); the inner concave round opening (4) is arranged at the position where the transverse steel bar (3A) and the longitudinal steel bar (3B) are vertically crossed; the depth of the inner concave round mouth (4) reaches the position below the finished product reinforcing mesh (3); as shown in fig. 12-15, the inner concave round openings (4) can be arranged at the crossing positions of the finished reinforcing mesh (3) in a herringbone arrangement, a field-shaped arrangement, a diagonal arrangement or a full-spread arrangement; the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6) can be connected more stably through the concave round opening (4); the arrangement of the inward concave round opening (4) can provide a connecting fulcrum for the finished product reinforcing mesh (3) and the upper layer reinforcing mesh (7), so that a special chord support structure is formed, and the stability of the floor slab is improved.
7. A semi-fabricated concrete floor according to claim 1, characterized in that: the steel bar drag hook (5) is arranged in the concave round opening (4), and the bottom hook of the steel bar drag hook (5) is hooked on the finished steel bar mesh (3); the upper hook of the steel bar draw hook (5) is arranged in the inner concave round opening (4) in a hanging manner, so that the finished reinforced concrete bottom plate (1) can be conveniently hoisted and transported, and meanwhile, the connection stability of the finished reinforced concrete bottom plate (1) and the post-cast reinforced concrete top plate (6) can be improved.
8. A semi-fabricated concrete floor according to claim 1, characterized in that: the post-cast reinforced concrete top plate (6) is an upper floor structure of a semi-fabricated concrete floor; the post-cast reinforced concrete top plate (6) is a reinforced concrete floor slab formed by pouring after an upper layer of reinforcing mesh (7) is arranged on the basis of the finished reinforced concrete bottom plate (1) and the connecting plate (10).
9. A semi-fabricated concrete floor according to claim 1, characterized in that: hooks are arranged at two ends of each connecting steel bar (8), and each connecting steel bar (8) is mainly used for connecting two finished reinforced concrete bottom plates (1) together; when the distance between the two finished reinforced concrete bottom plates (1) is large, or when a beam (9) or a connecting plate (10) is clamped between the two finished reinforced concrete bottom plates (1), connecting reinforcing steel bars (8) can be adopted for connection, hooks of the connecting reinforcing steel bars (8) are hooked on hooks (3C) of two adjacent reinforcing steel bars, and then the connection between the two finished reinforced concrete bottom plates (1) can be realized.
10. A semi-fabricated concrete floor according to claim 1, characterized in that: when the splicing reinforcing steel bars (7A) are applied to the mutual splicing of two finished reinforced concrete base plates (1), the finished reinforcing steel bar meshes (3) between the two finished reinforced concrete base plates (1) are mutually staggered, reinforcing steel bar hooks (3C) of two adjacent finished reinforcing steel bar meshes (3) can be mutually crossed to form a long crossed hole, the splicing reinforcing steel bars (7A) are inserted into the long crossed hole, and then the splicing reinforcing steel bars (7A) and the adjacent reinforcing steel bar hooks (3C) are bound together by using iron wires, so that the connection between the two finished reinforced concrete base plates (1) can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137488.2A CN114837336A (en) | 2021-02-02 | 2021-02-02 | Semi-fabricated concrete floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137488.2A CN114837336A (en) | 2021-02-02 | 2021-02-02 | Semi-fabricated concrete floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837336A true CN114837336A (en) | 2022-08-02 |
Family
ID=82561370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110137488.2A Pending CN114837336A (en) | 2021-02-02 | 2021-02-02 | Semi-fabricated concrete floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837336A (en) |
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2021
- 2021-02-02 CN CN202110137488.2A patent/CN114837336A/en active Pending
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