CN112240071A - Prefabricated assembly type laminated slab and using method thereof - Google Patents
Prefabricated assembly type laminated slab and using method thereof Download PDFInfo
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- CN112240071A CN112240071A CN202011220043.2A CN202011220043A CN112240071A CN 112240071 A CN112240071 A CN 112240071A CN 202011220043 A CN202011220043 A CN 202011220043A CN 112240071 A CN112240071 A CN 112240071A
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- bottom plate
- prefabricated bottom
- prefabricated
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- lamp box
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 121
- 239000010959 steel Substances 0.000 claims abstract description 121
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 53
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 39
- 239000002131 composite material Substances 0.000 claims abstract description 32
- 210000001503 joint Anatomy 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 77
- 238000009434 installation Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims 1
- 241001465382 Physalis alkekengi Species 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
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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
- E04B5/32—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
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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
- E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to a prefabricated composite slab and a using method thereof, which are particularly suitable for quickly building a building. The combined prefabricated bottom plate comprises a combined prefabricated bottom plate, a bidirectional prefabricated bottom plate and a unidirectional prefabricated bottom plate, wherein one end of the combined prefabricated bottom plate is provided with a reinforcing steel bar group, one end of the reinforcing steel bar group is fixed on a steel bar mesh sheet of the combined prefabricated bottom plate or the unidirectional prefabricated bottom plate, the splicing firmness degree is enhanced during butt joint, the other end of the combined prefabricated bottom plate is provided with a hook steel bar, the end is in butt joint with the bidirectional prefabricated bottom plate, two hook steel bars which are mutually matched and connected are respectively provided with a concave part and a convex part, and locking steel bars are inserted into circles formed by the concave part and the convex part so as to enhance the butt joint strength; and the laminated slab is provided with steel bars for embedding the lamp box. It can effectively strengthen the firm concatenation degree between combination prefabricated bottom plate and the one-way prefabricated bottom plate, strengthens the butt joint intensity between a plurality of superimposed sheets, can more effectively utilize pre-buried lamp box inner space, its simple structure, convenient to use.
Description
Technical Field
The invention relates to a laminated slab and a using method thereof, in particular to a prefabricated laminated slab suitable for being used for quickly building a building and a using method thereof, and belongs to the technical field of the prefabricated laminated slab.
Background
The laminated slab is a better structural form combining prefabrication and cast-in-place concrete, a prefabricated stress thin slab and a cast-in-place concrete layer are combined into a whole, and with the continuous increase of high-rise buildings, the application of an assembled concrete structure is more and more extensive, so that different types of laminated slabs appear.
In the building construction, the unidirectional prefabricated bottom plates are directly spliced, reinforcing steel bars are laid at the splicing positions, and concrete is poured to ensure that the adjacent unidirectional prefabricated bottom plates can be firmly connected; the reinforcing steel bars used in the method are directly placed on the unidirectional prefabricated bottom plate, and the firmness degree is not enough. Adopt hook steel bar connection between the two-way prefabricated bottom plate, the reinforcing bar of two butt joints is spliced each other, does not restrict the axial degree of freedom for the firm degree of butt joint between the two-way prefabricated bottom plate is not enough, leads to the intensity at concatenation position not enough easily, makes its junction produce the crack easily, leads to the wholeness after two superimposed sheets connect relatively poor. Can install the lamp box according to the demand on the superimposed sheet that has now, reinforcing bar steel is avoided to current lamp box mounting means for reduce at the superimposed sheet position intensity of installation lamp box position, influence whole superimposed sheet effect. To this end, a prefabricated composite slab is proposed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a prefabricated composite slab with simple structure, convenient use, flexible combination and good use effect and a use method thereof.
In order to achieve the purpose, the prefabricated assembly type composite slab comprises a prefabricated bottom plate and a pre-buried lamp box; the prefabricated bottom plate is formed by combining a plurality of reinforcing steel meshes and then casting concrete, the embedded lamp box is arranged in the prefabricated bottom plate, the embedded lamp box penetrates through the reinforcing steel meshes of the combined prefabricated bottom plate and is cast with the combined prefabricated bottom plate, connecting pieces connected with other prefabricated bottom plates for use are respectively arranged on two sides of the prefabricated bottom plate, and the connecting pieces of the prefabricated bottom plate are reinforcing steel bar groups and hook steel bars as required;
when the connecting pieces arranged on the two sides of the prefabricated bottom plate are respectively a reinforcing steel bar group and a hook steel bar, the prefabricated bottom plate is formed by the connecting pieces; the hook steel bar is provided with a concave part or a convex part;
when the connecting pieces arranged on the two sides of the prefabricated bottom plate are hook steel bars, the two-way prefabricated bottom plate is formed, and convex parts or concave parts matched with concave parts or convex parts of the hook steel bars of the combined prefabricated bottom plate are arranged on the hook steel bars on one side of the two-way prefabricated bottom plate; the plurality of bidirectional prefabricated bottom plates can be mutually butted for use;
when only one side of the prefabricated bottom plate is provided with the connecting piece and is a reinforcing steel bar group, the unidirectional prefabricated bottom plate is formed, and the plurality of unidirectional prefabricated bottom plates can be mutually butted for use;
the combined prefabricated bottom plate can be singly butted with a bidirectional prefabricated bottom plate or a unidirectional prefabricated bottom plate for use, and the bidirectional prefabricated bottom plate and the unidirectional prefabricated bottom plate can be simultaneously butted at two sides of the combined prefabricated bottom plate for use;
and pouring a layer of concrete on the prefabricated bottom plate after splicing according to needs to form the composite slab.
Furthermore, one side of the combined prefabricated bottom plate with the hook steel bars is in butt joint with the hook steel bars on one side of the bidirectional prefabricated bottom plate for connection, and one side of the combined prefabricated bottom plate with the reinforcing steel bar groups is in butt joint with one side of the unidirectional prefabricated bottom plate without the reinforcing steel bar groups for connection; the hook steel bars with the concave parts and the hook steel bars with the convex parts are required to be connected in a matched mode through hook steel bar connection, circular spaces are formed between the concave parts and the convex parts, locking steel bars are installed in the circular spaces in an inserting mode, and then concrete is cast at the positions of the hook steel bars which are in butt joint with each other to complete connection of the two bidirectional prefabricated bottom plates or the combined prefabricated bottom plates and the bidirectional prefabricated bottom plates.
Furthermore, the end part of the hook steel bar is provided with a hook, and the bending degree of the hook is 30 degrees or 45 degrees.
Further, the reinforcing steel bar group comprises transverse connecting steel bars, first vertical steel bars, second vertical steel bars and first vertical steel bars, a plurality of first vertical steel bars which are uniformly arranged are arranged in one side of the combined prefabricated bottom plate or the unidirectional prefabricated bottom plate, and with the reinforcing bar net piece welded fastening in combination prefabricated bottom plate or the one-way prefabricated bottom plate, the vertical welded fastening in upper end of first upright reinforcing bar has the first vertical reinforcing bar of connecting all first upright reinforcing bars, and the horizontal welded fastening in the upper equal end of every first upright reinforcing bar has a transverse connection reinforcing bar, and the vertical welding of the tip of keeping away from first upright reinforcing bar of transverse connection reinforcing bar has the second vertical reinforcing bar of connecting all connecting reinforcement tip, and every transverse connection reinforcing bar and the equal perpendicular welded fastening of second vertical reinforcing bar junction have a second upright reinforcing bar, the lower extreme of second upright reinforcing bar and the up end contact of one-way prefabricated bottom plate.
Further, pre-buried lamp box includes lamp box seat, the vice seat of lamp box, bottom cover plate, mounting groove, installation boss and pipeline mouth, lamp box seat, the vice seat combination formula structure as an organic whole of lamp box, and the lower extreme is equipped with the cavity for the opening inboard, is equipped with lamps and lanterns, battery and lamps and lanterns control switch in the cavity, lamp box seat and the vice seat side of lamp box are provided with a plurality of pipeline mouths and supply the external electric wire to penetrate, the lower extreme of the vice seat of lamp box seat and lamp box is equipped with the bottom cover plate, penetrate the reinforcing bar in the preceding back wall face of lamp box seat, the reinforcing bar is inserted along the inner wall to the vice seat of lamp box.
Further, be equipped with the installation boss on the end cover plate, the lower extreme of lamp box seat and the vice seat of lamp box is equipped with the mounting groove, the boss inserts in the mounting groove and fixes the mounting groove in lamp box seat and the vice seat bottom of lamp box.
The application method of the prefabricated composite slab comprises the following steps of combining the prefabricated bottom plate, the bidirectional prefabricated bottom plate and the unidirectional prefabricated bottom plate according to requirements to form the composite slab:
when the prefabricated bottom plate of combination and two-way prefabricated bottom plate pass through the butt joint of crotch reinforcing bar end, perhaps when two-way prefabricated bottom plates pass through the butt joint of crotch reinforcing bar end: the two prefabricated bottom plates with hook steel bars are butted, a concave part is arranged on the hook steel bar of one prefabricated bottom plate, a convex part is required to be arranged on the hook steel bar of the other prefabricated bottom plate, all the hook steel bars of the two prefabricated bottom plates are arranged in a matched mode, a circular space is formed after the concave part and the convex part are connected in a matched mode, locking steel bars are inserted and installed in the circular space in an inserting mode, the two hook steel bars are limited transversely through the locking steel bars, then concrete is cast at the butt-jointed hook steel bars, connection between the two prefabricated bottom plates is fixed, and finally a layer of concrete is poured on the upper end faces of the two prefabricated bottom plates to form a combined laminated plate;
when combination prefabricated bottom plate and one-way prefabricated bottom plate pass through reinforcing bar group butt joint, perhaps when organizing the butt joint through reinforcing bar between two one-way prefabricated bottom plates: the one side that the prefabricated bottom plate of combination has the one side butt joint one-way prefabricated bottom plate of reinforcing bar group is connected without reinforcing bar group, perhaps when reinforcing bar group of one-way prefabricated bottom plate is connected with the one side that does not take reinforcing bar group of another one-way prefabricated bottom plate, the prefabricated bottom plate that will be equipped with reinforcing bar group and another prefabricated bottom plate that does not have reinforcing bar group hug closely the frontier defense, wherein reinforcing bar group installs in the prefabricated bottom plate top that does not have reinforcing bar group, later directly at two prefabricated bottom plates and a layer of concrete of casting above reinforcing bar group, form the superimposed sheet after the combination.
Has the advantages that:
1) one end of the prefabricated bottom plate is provided with a reinforcing steel bar group, one end of the reinforcing steel bar group is fixed on the reinforcing steel bar mesh sheet of the combined prefabricated bottom plate, the other end of the reinforcing steel bar group extends to the one-way prefabricated bottom plate, and the second vertical reinforcing steel bars are arranged, so that the firm splicing degree between the combined prefabricated bottom plate and the one-way prefabricated bottom plate is effectively enhanced.
2) The hook reinforcing bar that the other end of prefabricated bottom plate set up, the hook reinforcing bar of the two-way prefabricated bottom plate of cooperation docks, is equipped with protruding department and concavity on the hook reinforcing bar on both sides respectively, has protruding department and concavity to form circular space, inserts the locking reinforcing bar in the circular space, can effectively strengthen the butt joint intensity of both sides hook reinforcing bar.
3) The steel bars of the laminated slab are inserted into the embedded lamp box, so that the strength of the original laminated slab is not influenced; when the reinforcing bar is inserting pre-buried lamp box in, lamp box seat department, the reinforcing bar disect insertion lamp box seat's lateral wall, in the vice seat department of lamp box, the reinforcing bar sets up round the wall of the vice seat of lamp box for can more effectually utilize pre-buried lamp box inner space.
Drawings
FIG. 1 is a schematic structural view showing the connection of three kinds of composite slabs of the prefabricated composite slab according to the present invention;
FIG. 2 is a schematic view of a combined prefabricated base plate structure of the prefabricated composite slab according to the present invention;
FIG. 3 is a cross-sectional schematic view illustrating the butt joint of the combined prefabricated base plate and the unidirectional prefabricated base plate of the prefabricated composite slab according to the present invention;
FIG. 4 is a schematic structural view of a bi-directional prefabricated floor of the prefabricated composite slab of the present invention;
FIG. 5 is a schematic structural view of a unidirectional prefabricated floor of the prefabricated composite slab of the present invention;
fig. 6 is a schematic view of a first three-dimensional structure of a pre-buried lamp box of the prefabricated composite slab of the invention;
fig. 7 is a schematic diagram of a second three-dimensional structure of a pre-buried lamp box of the prefabricated composite slab of the invention;
FIG. 8 is a schematic diagram of the structure of the inner cavity of the embedded lamp box of the prefabricated composite slab of the present invention;
fig. 9 is a schematic cross-sectional view of the reinforcing bars inserted into the auxiliary lamp box seats of the embedded lamp box of the prefabricated composite slab of the present invention.
In the figure: 1-combining prefabricated bottom plates; 2-bidirectional prefabricating a bottom plate; 3-unidirectional prefabricated bottom plate; 4-reinforcing steel bar group; 40-transverse connecting steel bars; 41-a first vertical rebar; 42-second vertical steel bars; 43-a second vertical rebar; 44-first vertical rebar; 5-embedding a lamp box; 51-a light box base; 52-lamp box sub-base; 53-bottom cover plate; 54-mounting grooves; 55-mounting a boss; 56-pipe orifice; 6-locking the reinforcing steel bars; 7-hook steel bars; 8-concave part; 8-convex part; 10-reinforcing steel bars.
Detailed Description
Embodiments of the present application are further described below in conjunction with the appended drawings, which are included to disclose the invention and enable those skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
The prefabricated composite slab shown in fig. 1-9 comprises a prefabricated bottom plate and a pre-buried lamp box 5; the prefabricated bottom plate is that many reinforcing bar net piece combination back casting concrete constitutes, and pre-buried lamp box 5 sets up in prefabricated bottom plate, pre-buried lamp box 5 passes the reinforcing bar net piece of prefabricated bottom plate 1 of combination and is in the same place with the prefabricated bottom plate 1 casting of combination, and the both sides of prefabricated bottom plate are equipped with the connecting piece that is connected the use with other prefabricated bottom plates respectively, and the connecting piece of prefabricated bottom plate is reinforcing bar group 4 andor crotch reinforcing bar 7 as required, and 7 tip of crotch reinforcing bar are for colluding the column structure, and the degree of curvature that colludes the column structure is 30 or 45.
When the connecting pieces arranged on the two sides of the prefabricated bottom plate are respectively a reinforcing steel bar group 4 and a hook steel bar 7, the prefabricated bottom plate 1 is formed by the connecting pieces; the hook steel bar 7 is provided with a concave part 8 or a convex part 9;
when the connecting pieces arranged on the two sides of the prefabricated bottom plate are hook steel bars 7, the two-way prefabricated bottom plate 2 is formed, and convex parts 9 or concave parts 8 matched with the concave parts 8 or convex parts 9 of the hook steel bars 7 of the combined prefabricated bottom plate 1 are arranged on the hook steel bars 7 on one side of the two-way prefabricated bottom plate 2; the plurality of bidirectional prefabricated bottom plates 2 can be mutually butted for use;
one side of the combined prefabricated bottom plate 1 with the hook steel bars 7 is connected with the hook steel bars 7 on one side of the bidirectional prefabricated bottom plate 2 in a butt joint mode, and one side of the combined prefabricated bottom plate 1 with the reinforcing steel bar group 4 is connected with one side of the unidirectional prefabricated bottom plate 3 without the reinforcing steel bar group 4 in a butt joint mode; the hook steel bars 7 with the concave parts 8 are required to be connected with the hook steel bars 7 with the convex parts 9 in a matching mode through the hook steel bars 7, a circular space is formed between the concave parts 8 and the convex parts 9, the locking steel bars 6 are inserted and installed in the circular space, and then concrete is cast at the mutually butted hook steel bars 7 to complete the connection of the two bidirectional prefabricated bottom plates 2 or the combined prefabricated bottom plate 1 and the bidirectional prefabricated bottom plates 2;
when only one side of the prefabricated bottom plate is provided with the connecting piece and is provided with the reinforcing steel bar group 4, the unidirectional prefabricated bottom plate 3 is formed, and the plurality of unidirectional prefabricated bottom plates 3 can be mutually butted for use;
the combined prefabricated bottom plate 1 can be singly butted with the bidirectional prefabricated bottom plate 2 or the unidirectional prefabricated bottom plate 3 for use, and the bidirectional prefabricated bottom plate 2 and the unidirectional prefabricated bottom plate 3 can also be butted at two sides of the combined prefabricated bottom plate simultaneously for use;
and pouring a layer of concrete on the prefabricated bottom plate after splicing according to needs to form the composite slab.
The reinforcing steel bar group 4 comprises transverse connecting steel bars 40, first vertical steel bars 41, second vertical steel bars 42, second vertical steel bars 43 and first vertical steel bars 44, a plurality of first vertical steel bars 44 which are uniformly arranged are arranged in one side of the combined prefabricated bottom plate 1 or the unidirectional prefabricated bottom plate 3, and with the reinforcing bar net piece welded fastening in combination prefabricated bottom plate 1 or the one-way prefabricated bottom plate 3, the vertical welded fastening in upper end of first upright reinforcing bar 44 has the first vertical reinforcing bar 41 of connecting all first upright reinforcing bars 44, and the last equal end horizontal welded fastening of every first upright reinforcing bar 44 has a transverse connection reinforcing bar 40, and the vertical welding of the tip of keeping away from first upright reinforcing bar 44 of transverse connection reinforcing bar 40 has the second vertical reinforcing bar 43 of connecting all connecting reinforcement 40 tip, and every transverse connection reinforcing bar 40 all vertically welded fastening a second upright reinforcing bar 42 with the second vertical reinforcing bar 43 junction, the lower extreme of second upright reinforcing bar 42 and the up end contact of one-way prefabricated bottom plate 3.
The embedded lamp box 5 comprises a lamp box base 51, a lamp box auxiliary base 52, a bottom cover plate 53, a mounting groove 54, a mounting boss 55 and a pipeline port 56, the lamp box base 51 and the lamp box auxiliary base 52 are combined into an integral structure, a cavity is formed in the lower end of the lamp box base 52, a lamp, a battery and a lamp control switch are arranged in the cavity, a plurality of pipeline ports 56 are arranged on the side edges of the lamp box base 51 and the lamp box auxiliary base 52 for external electric wires to penetrate, the bottom cover plate 53 is arranged at the lower ends of the lamp box base 51 and the lamp box auxiliary base 52, reinforcing steel bars 10 penetrate through the front wall surface and the rear wall surface of the lamp box base 51, and the reinforcing steel bars 10 are inserted into the lamp box auxiliary base 52 along.
The bottom cover plate 53 is provided with an installation boss 55, the lower ends of the lamp box base 51 and the lamp box sub-base 52 are provided with installation grooves 54, and the boss 55 is inserted into the installation groove 54 to fix the installation groove 54 at the bottom of the lamp box base 51 and the lamp box sub-base 52.
A use method of a prefabricated composite slab comprises the following steps of combining a combined prefabricated bottom plate 1, a bidirectional prefabricated bottom plate 2 and a unidirectional prefabricated bottom plate 3 according to needs to form the composite slab:
when combination prefabricated bottom plate 1 and two-way prefabricated bottom plate 2 pass through 7 end docks of crotch reinforcing bar, perhaps when two-way prefabricated bottom plates 2 pass through 7 end docks of crotch reinforcing bar: the two prefabricated bottom plates with the hook steel bars 7 are butted, a concave part 8 is arranged on the hook steel bar 7 of one prefabricated bottom plate, a convex part 9 is required to be arranged on the hook steel bar 7 of the other prefabricated bottom plate, all the hook steel bars 7 of the two prefabricated bottom plates are arranged in a matching way, a circular space is formed after the concave part 8 and the convex part 9 are connected in a matching way, locking steel bars 6 are inserted and installed in the circular space, the two hook steel bars 7 are transversely limited through the locking steel bars 6, then concrete is cast at the mutually butted hook steel bars 7, so that the connection between the two prefabricated bottom plates is fixed, and finally, a layer of concrete is poured on the upper end faces of the two prefabricated bottom plates to form a combined composite slab;
when combination prefabricated bottom plate 1 and one-way prefabricated bottom plate 3 dock through reinforcing bar group 4, perhaps when 4 docks through reinforcing bar group between two one-way prefabricated bottom plates 3: one side that combination prefabricated bottom plate 1 has reinforcing bar group 4 docks one side that does not take reinforcing bar group 4 of one-way prefabricated bottom plate 3 is connected, perhaps reinforcing bar group 4 of one-way prefabricated bottom plate 3 is connected with another one-way prefabricated bottom plate 3 does not take reinforcing bar group 4 one side, the prefabricated bottom plate that will be equipped with reinforcing bar group 4 and another prefabricated bottom plate that does not have reinforcing bar group 4 hug closely the frontier defense, wherein reinforcing bar group 4 installs in the prefabricated bottom plate top that does not have reinforcing bar group 4, later directly at two prefabricated bottom plates and a layer of concrete of casting in reinforcing bar group 4 top, form the superimposed sheet after the combination.
Example 1: when the combined prefabricated bottom plate 1 is butted with the bidirectional prefabricated bottom plate 2:
one end of the combined prefabricated bottom plate 1 with the hook steel bars 7 is butted with the bidirectional prefabricated bottom plate 2, concave parts 8 or convex parts 9 are arranged on the hook steel bars 7 on the combined prefabricated bottom plate 1, the concave parts 8 are arranged on the hook steel bars 7 at one end of the bidirectional prefabricated bottom plate 2, and the convex parts 9 are arranged on the hook steel bars 7 at the other end; when the combined prefabricated bottom plate 1 is butted with the bidirectional prefabricated bottom plate 2, if the hook steel bars 7 on the combined prefabricated bottom plate 1 are provided with concave parts 8, the hook steel bars 7 matched with the hook steel bars 7 on the bidirectional prefabricated bottom plate 2 are provided with convex parts 9, the concave parts 8 and the convex parts 9 of the hook steel bars 7 of the combined prefabricated bottom plate 1 and the bidirectional prefabricated bottom plate 2 are matched and connected to form a circular space, locking steel bars 6 are inserted and installed in the circular space, the locking steel bars 6 play a role in limiting the hook steel bars 7, after the combined prefabricated bottom plate 1 and the bidirectional prefabricated bottom plate 2 are butted with each other, concrete is cast on the hook steel bars 7 and the locking steel bars 6, the butted parts of the combined prefabricated bottom plate 1 and the bidirectional prefabricated bottom plate 2 are fixedly connected, and a layer of concrete is cast on the upper end faces of the combined prefabricated bottom plate 1 and the bidirectional.
Example 2: when the combined prefabricated bottom plate 1 is butted with the unidirectional prefabricated bottom plate 3:
one side of the combined prefabricated bottom plate 1 with the reinforcing steel bar group 4 is in butt joint with one side of the unidirectional prefabricated bottom plate 3 without the reinforcing steel bar group 4, one end of the reinforcing steel bar group 4 is welded and fixed on the combined prefabricated bottom plate 1, the other end of the reinforcing steel bar group 4 is in contact with the upper end of one side of the unidirectional prefabricated bottom plate 3, the unidirectional prefabricated bottom plate 3 is placed firstly during butt joint, the combined prefabricated bottom plate 1 is placed, the side section of the combined prefabricated bottom plate 1 is tightly attached to the side end face of the unidirectional prefabricated bottom plate 3, the reinforcing steel bar group 4 on one side of the combined prefabricated bottom plate 1 is pressed on the upper end face of the unidirectional prefabricated bottom plate 3, and after splicing is completed, a layer of concrete is poured on the upper end faces of the combined prefabricated bottom plate.
Example 3: when a plurality of bidirectional prefabricated bottom plates 2 are butted:
the hook steel bars 7 on two sides of each bidirectional prefabricated bottom plate 2 are arranged in opposite directions, the hook steel bars 7 on one side are provided with concave parts 8, and the hook steel bars 7 on the other side are provided with convex parts 9; the hook steel bars 7 with the concave parts 8 of one bidirectional prefabricated bottom plate 2 are butted with the hook steel bars 7 with the convex parts 9 of the other bidirectional prefabricated bottom plate 2, after the concave parts 8 are matched and connected with the convex parts 9, circular spaces are formed between the concave parts 8 and the convex parts 9, the locking steel bars 6 are inserted and installed in the circular spaces, the two hook steel bars 7 are transversely limited through the locking steel bars 6, then concrete is cast at the mutually butted hook steel bars 7 to complete the butt joint of the two bidirectional prefabricated bottom plates 2, and in the method, after the plurality of bidirectional prefabricated bottom plates 2 are butted, a layer of concrete is cast on the upper end faces of the two bidirectional prefabricated bottom plates to form a laminated plate.
Example 4: when a plurality of unidirectional prefabricated bottom plates 3 are butted:
firstly placing one unidirectional prefabricated bottom plate 3, abutting one end of the unidirectional prefabricated bottom plate 3 without the reinforcing steel bar group 4 to one end of the other unidirectional prefabricated bottom plate 3 with the reinforcing steel bar group 4, abutting side end faces of the two unidirectional prefabricated bottom plates 3 for connection, and placing the reinforcing steel bar group 4 above the abutting joint of the two unidirectional prefabricated bottom plates 3.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The prefabricated composite slab is characterized by comprising a prefabricated bottom plate and a pre-buried lamp box (5); the prefabricated bottom plate is formed by combining a plurality of reinforcing steel meshes and then casting concrete, the embedded lamp box (5) is arranged in the prefabricated bottom plate, the embedded lamp box (5) penetrates through the reinforcing steel meshes of the combined prefabricated bottom plate (1) and is cast with the combined prefabricated bottom plate (1), connecting pieces connected with other prefabricated bottom plates for use are respectively arranged on two sides of the prefabricated bottom plate, and the connecting pieces of the prefabricated bottom plate are reinforcing steel bar groups (4) and hook reinforcing steel bars (7) according to needs;
when the connecting pieces arranged on the two sides of the prefabricated bottom plate are respectively a reinforcing steel bar group (4) and a hook steel bar (7), the prefabricated bottom plate (1) is formed; the hook steel bar (7) is provided with a concave part (8) or a convex part (9);
when the connecting pieces arranged on the two sides of the prefabricated bottom plate are hook steel bars (7), the two-way prefabricated bottom plate (2) is formed, and convex parts (9) or concave parts (8) matched with concave parts (8) or convex parts (9) of the hook steel bars (7) of the combined prefabricated bottom plate (1) are arranged on the hook steel bars (7) on one side of the two-way prefabricated bottom plate (2); the plurality of bidirectional prefabricated bottom plates (2) can be mutually butted for use;
when only one side of the prefabricated bottom plate is provided with the connecting piece and is provided with the reinforcing steel bar group (4), the unidirectional prefabricated bottom plate (3) is formed, and the plurality of unidirectional prefabricated bottom plates (3) can be mutually butted for use;
the combined prefabricated bottom plate (1) can be singly butted with the bidirectional prefabricated bottom plate (2) or the unidirectional prefabricated bottom plate (3) for use, and the bidirectional prefabricated bottom plate (2) and the unidirectional prefabricated bottom plate (3) can also be butted at two sides of the combined prefabricated bottom plate for use;
and pouring a layer of concrete on the prefabricated bottom plate after splicing according to needs to form the composite slab.
2. The prefabricated composite slab as claimed in claim 1, wherein the side of the combined prefabricated slab (1) having the hooked reinforcement (7) is connected to the hooked reinforcement (7) on the side of the bidirectional prefabricated slab (2), and the side of the combined prefabricated slab (1) having the reinforcement group (4) is connected to the side of the unidirectional prefabricated slab (3) not having the reinforcement group (4); the connection through the hook steel bars (7) is to ensure that the hook steel bars (7) provided with concave parts (8) are in matched connection with the hook steel bars (7) provided with convex parts (9), a circular space is formed between the concave parts (8) and the convex parts (9), the locking steel bars (6) are installed in the circular space in an inserting mode, and then concrete is cast at the mutually butted hook steel bars (7) to complete the connection of the two bidirectional prefabricated bottom plates (2) or the combined prefabricated bottom plate (1) and the bidirectional prefabricated bottom plate (2).
3. The prefabricated composite slab as claimed in claim 1, wherein: the end part of the hook steel bar (7) is of a hook-shaped structure, and the bending degree of the hook-shaped structure is 30 degrees or 45 degrees.
4. The prefabricated composite slab as claimed in claim 1, wherein: the reinforcing steel bar group (4) comprises transverse connecting steel bars (40), first vertical steel bars (41), second vertical steel bars (42), second vertical steel bars (43) and first vertical steel bars (44), a plurality of uniformly arranged first vertical steel bars (44) are arranged in one side of the combined prefabricated bottom plate (1) or the unidirectional prefabricated bottom plate (3) and are welded and fixed with steel bar meshes in the combined prefabricated bottom plate (1) or the unidirectional prefabricated bottom plate (3), the vertical upper end of each first vertical steel bar (44) is vertically welded and fixed with the first vertical steel bars (41) connected with all the first vertical steel bars (44), the transverse connecting steel bar (40) is transversely welded and fixed at the upper end of each first vertical steel bar (44), the end part, far away from the first vertical steel bar (44), of each transverse connecting steel bar (40) is welded with the second vertical steel bars (43) connected with the end part of all the connecting steel bars (40), every transverse connection reinforcing bar (40) and second vertical reinforcement (43) junction all perpendicular welded fastening second found reinforcing bar (42), the lower extreme of second found reinforcing bar (42) contacts with the up end of one-way prefabricated bottom plate (3).
5. The prefabricated composite slab as claimed in claim 1, wherein the embedded lamp box (5) comprises a lamp box base (51), a lamp box sub-base (52), a bottom cover plate (53), an installation groove (54), an installation boss (55) and pipeline ports (56), the lamp box base (51) and the lamp box sub-base (52) are combined into an integral structure, a cavity is formed in the lower end of the integrated structure, a lamp, a battery and a lamp control switch are arranged in the cavity, a plurality of pipeline ports (56) are formed in the side edges of the lamp box base (51) and the lamp box sub-base (52) for external wires to penetrate through, the bottom cover plate (53) is arranged at the lower end of the lamp box base (51) and the lower end of the lamp box sub-base (52), reinforcing steel bars (10) penetrate through the front and rear wall surfaces of the lamp box base (51), and the reinforcing steel bars (10) are inserted into the lamp box sub-base (52) along the inner.
6. The prefabricated composite panel according to claim 5, wherein said bottom cover plate (53) is provided with a mounting boss (55), the lower ends of said lamp box holder (51) and said sub-lamp box holder (52) are provided with mounting grooves (54), and said boss (55) is inserted into said mounting grooves (54) to fix said mounting grooves (54) at the bottoms of said lamp box holder (51) and said sub-lamp box holder (52).
7. Use method of prefabricated composite slab as claimed in any of the above claims, characterized in that the combined prefabricated base plate (1), the bidirectional prefabricated base plate (2) and the unidirectional prefabricated base plate (3) are combined as required to form a composite slab, and the concrete steps are as follows:
when combination prefabricated bottom plate (1) and two-way prefabricated bottom plate (2) through crotch reinforcing bar (7) end butt joint, perhaps when two-way prefabricated bottom plate (2) through crotch reinforcing bar (7) end butt joint: the prefabricated bottom plates with the hook steel bars (7) are butted, a concave part (8) is arranged on the hook steel bar (7) of one prefabricated bottom plate, a convex part (9) is required to be arranged on the hook steel bar (7) of the other prefabricated bottom plate, all the hook steel bars (7) of the two prefabricated bottom plates are arranged in a matched mode, a circular space is formed after the concave part (8) and the convex part (9) are connected in a matched mode, locking steel bars (6) are installed in the circular space in an inserting mode, the two hook steel bars (7) are limited transversely through the locking steel bars (6), then concrete is cast at the mutually butted hook steel bars (7), accordingly, the connection between the two prefabricated bottom plates is fixed, and finally a layer of concrete is poured on the upper end faces of the two prefabricated bottom plates to form a combined composite slab;
when combination prefabricated bottom plate (1) and one-way prefabricated bottom plate (3) dock through reinforcing bar group (4), perhaps when docking through reinforcing bar group (4) between two one-way prefabricated bottom plates (3): one side of the combined prefabricated bottom plate (1) with the reinforcing steel bar group (4) is in butt joint with one side, without the reinforcing steel bar group (4), of the one-way prefabricated bottom plate (3) to be connected, or when the reinforcing steel bar group (4) of one-way prefabricated bottom plate (3) is connected with one side, without the reinforcing steel bar group (4), of the other one-way prefabricated bottom plate (3), the prefabricated bottom plate with the reinforcing steel bar group (4) is tightly attached to the other prefabricated bottom plate without the reinforcing steel bar group (4), wherein the reinforcing steel bar group (4) is installed above the prefabricated bottom plate without the reinforcing steel bar group (4), then a layer of concrete is directly cast above the two prefabricated bottom plates and the reinforcing steel bar group (4), and a combined laminated slab is formed.
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| CN202011220043.2A CN112240071A (en) | 2020-11-05 | 2020-11-05 | Prefabricated assembly type laminated slab and using method thereof |
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