CN113123504A - Laminated floor slab with detachable additional rigidity device - Google Patents
Laminated floor slab with detachable additional rigidity device Download PDFInfo
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- CN113123504A CN113123504A CN202110529636.5A CN202110529636A CN113123504A CN 113123504 A CN113123504 A CN 113123504A CN 202110529636 A CN202110529636 A CN 202110529636A CN 113123504 A CN113123504 A CN 113123504A
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- 239000002131 composite material Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 167
- 239000010959 steel Substances 0.000 claims description 167
- 239000002184 metal Substances 0.000 claims description 18
- 238000010030 laminating Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000011065 in-situ storage Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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Abstract
The invention discloses a composite floor slab with a detachable additional rigidity device, which comprises a composite floor slab body and a plurality of additional rigidity pieces, wherein the composite floor slab body comprises a prefabricated bottom plate and a plurality of connectors arranged on the prefabricated bottom plate, the additional rigidity pieces are detachably and fixedly connected with the composite floor slab body through the connectors, and the additional rigidity pieces are directly attached to the composite floor slab body. This scheme has simple structure, rigidity is strong and can dismantle recycle's advantage.
Description
Technical Field
The invention relates to a composite floor slab, in particular to a composite floor slab with a detachable additional rigidity device.
Background
The prefabricated superimposed sheet of internal assembled mainstream is truss reinforcing bar superimposed sheet at present, and the superimposed floor of the current domestic mainstream has following shortcoming: (1) the truss steel bars are arranged, so that the steel bar content of the truss steel bars is high (about 50-60% higher than that of the steel bars of the traditional cast-in-situ slab); (2) the laminated slab has the advantages that the thickness of the bottom plate of the laminated slab is large (usually 60mm thick), so that the total thickness of the floor slab is large (the thickness of the bottom plate is 60mm plus the laminated layer is 80mm, the total thickness reaches 140mm, and is increased by 40% compared with the thickness of the traditional cast-in-place floor which is 100 mm), the cost is high, the self weight of the structure is heavy, and the weight of the whole house and the content of reinforcing; (3) the ribs are arranged at the slab end and the slab side of the floor slab, so that a factory production mold is complicated, and the slab side bottom mold of the bidirectional slab is complicated on site, so that the manufacturing and construction processes are complicated; (4) due to the height limitation of the truss, the difficulty of pipeline penetration on site is high, so that the site construction is complicated, the plate thickness is generally ultra-thick, and the cost is increased; (5) the plate bottom field formwork supporting and supporting density is high, so that the construction difficulty is high, and the assembly type advantage is not exerted. The problems lead to large cost increment and complex manufacturing and construction process of the laminated floor slab compared with the traditional cast-in-place floor slab.
In recent years, many companies in the industry have developed novel composite floor slabs, including prestressed slabs, PKIII slabs, rib-free composite slabs and the like, which can solve part of problems, but still are difficult to achieve a more ideal state, cannot solve most of problems at the same time, and still have a larger improvement space. Which comprises the following steps:
(1) prestressed plate: the prestressed reinforcement is adopted as the bottom reinforcement, the prestressed reinforcement slab has the advantages that truss reinforcements can be omitted, the using amount of the reinforcements is reduced, the thickness of the prestressed reinforcement slab is generally 60-70mm thick according to span requirements, the problem of the thickness of the bottom plate cannot be solved, the two-way stressed plate with no reinforcements on the plate side is difficult to realize due to the large thickness of the bottom plate, the total thickness of the floor slab is not more advantageous than that of a truss laminated slab, the total thickness of the floor slab is larger, the structure is self-weight, and the content of the reinforcements of the foundation and the structure main body.
(2) The truss pipe prestressed plate, the top muscle (formation steel pipe truss) of truss reinforcing bar is replaced to the metal pipe of inside grout, and the main atress muscle of bottom plate adopts the prestressing tendons. The steel pipe truss has the advantages that the steel pipe truss realizes that the rigidity of the floor slab is increased compared with that of a truss steel bar laminated slab, and the steel pipe truss is provided with the prestressed tendons, so that the thickness can be greatly reduced (the thickness is about 35-40mm) compared with that of a bottom plate (60 mm) of a common truss steel bar laminated slab, the thickness of the slab can be reduced, the weight is reduced, and hoisting, construction and material cost saving are realized. And because the rigidity is increased, the construction bottom plate can be supported less, the construction difficulty is reduced, and the cost is saved.
The prefabricated plate has the defects that the metal pipe grouted inside replaces the top rib of the truss steel bar, the cost of the steel pipe truss part is further increased compared with that of the common truss steel bar, the steel content of the prefabricated plate is too high, the diameter of the truss pipe is larger, the prefabricated plate is more difficult to pass and lay an on-site pipeline, and the thickness of the superposed layer of the prefabricated plate is larger than that of the common truss superposed plate.
Therefore, the technical personnel in the field are dedicated to develop a laminated floor slab with a detachable additional rigidity device, the rigidity of the floor slab is improved by means of additional rigidity pieces, and the condition that the floor slab does not crack in the processes of manufacturing, demoulding, transportation and hoisting is ensured.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a composite floor slab with a detachable additional stiffness device, wherein the additional stiffness member is arranged on the composite floor slab body, so that the additional stiffness member is tightly attached to the composite floor slab body, the stiffness of the composite floor slab is improved, the efficiency is greatly improved in the aspects of structure, manufacturing and production processes, resources and materials are saved, and the cost is reduced comprehensively.
In order to achieve the purpose, the invention provides a composite floor slab with a detachable additional rigidity device, which is characterized in that: including coincide floor body and a plurality of additional rigidity piece, coincide floor body includes prefabricated bottom plate and establishes a plurality of connectors on prefabricated bottom plate, additional rigidity piece pass through the connector with fixed connection can be dismantled to coincide floor body, additional rigidity piece with coincide floor body is direct to be laminated.
Further, the additional rigidity piece is channel steel or C-shaped steel, and the channel steel or the C-shaped steel is attached to the surface of the laminated floor slab body.
Furthermore, the connector is a concrete bump, the opening of the additional rigidity piece is downward, the additional rigidity piece covers the concrete bump, two side wall end faces of the channel steel or the C-shaped steel are attached to the upper plate face of the prefabricated bottom plate, and the additional rigidity piece is connected with the concrete bump through a bolt.
Further, the connector is a concrete bump, the channel steel or the C-shaped steel has a downward opening and is arranged on the upper surface of the concrete bump, the end faces of two side walls of the channel steel or the C-shaped steel are attached to the upper surface of the concrete bump, and the channel steel or the C-shaped steel is connected with the concrete bump through a bolt.
Further, the connector is a concrete bump, the opening of the channel steel or the C-shaped steel is upward and is arranged on the upper surface of the concrete bump, the lower surface of the bottom of the channel steel or the C-shaped steel is attached to the upper surface of the concrete bump, and the channel steel or the C-shaped steel is connected with the concrete bump through a bolt.
Furthermore, the connector is a metal connecting piece, and the metal connecting piece is pre-embedded in the prefabricated bottom plate.
Further, the metal connecting piece is a connecting plate with a bolt hole, the opening of the channel steel or the C-shaped steel is arranged downwards, the end faces of two side walls of the channel steel or the C-shaped steel are abutted to the upper surface of the prefabricated bottom plate in a fitting mode, connecting holes are formed in the side walls of the channel steel or the C-shaped steel, and the channel steel or the C-shaped steel is connected with the connecting plate through bolts.
Further, the metal connecting piece is the connecting plate that has the couple, the opening of channel-section steel or C shaped steel sets up down, the both sides wall terminal surface of channel-section steel with the upper surface laminating of prefabricated bottom plate offsets, the inslot of channel-section steel or C shaped steel is equipped with the peg, the peg with the couple of connecting plate is connected.
Further, the metal connecting piece is a pre-buried threaded sleeve, the opening of the channel steel or the C-shaped steel is arranged downwards, the end faces of two side walls of the channel steel or the C-shaped steel are abutted to the upper surface of the prefabricated bottom plate in a fit mode, and the top of the channel steel or the C-shaped steel is connected with the pre-buried threaded sleeve through bolts.
Further, at least one shear steel bar or shear connector is prefabricated in the concrete bump.
Further, the concrete bump and the prefabricated bottom plate are integrally cast or prefabricated in advance and then fixedly connected with the prefabricated bottom plate, and the height of the concrete bump is the same as that of the cast-in-place layer.
Further, a plurality of additional rigidity spare equipartitions in coincide floor body.
Further, many channel-section steel or C shaped steel are along coincide floor body length direction equidistant equipartition sets up.
Further, the thickness of the prefabricated base plate is 3-5 cm.
Furthermore, two side faces of the channel steel or the C-shaped steel are of porous hollow structures.
Further, a suspension point is arranged on the additional rigidity piece.
Further, the opening part of the additional rigidity piece is provided with a cover plate, and the lower plate surface of the cover plate is attached to the upper plate surface of the prefabricated bottom plate.
The invention has the beneficial effects that: according to the composite floor slab, the plurality of additional rigidity pieces are arranged on the composite floor slab body, and the additional rigidity pieces are directly attached to the surface of the composite floor slab body, so that the additional rigidity pieces and the composite floor slab body are integrated, the integral thickness of the integral composite floor slab on a mechanical model when the integral composite floor slab is stressed is increased, the integral rigidity of the integral composite floor slab is improved, and cracking during hoisting can be avoided.
Compared with the traditional structure, the cast-in-place laminated layer has the advantages that truss steel bars are omitted, the using amount of the steel bars is saved, the pipe penetrating is easier in site construction, the thickness of the cast-in-place laminated layer can be reduced, and the material cost is reduced. Because the additional rigidity part and the composite floor slab body are integrated, the whole thickness of the composite floor slab on a mechanical model when the composite floor slab is stressed is increased, the thickness of the prefabricated floor slab can be reduced, and the material cost is reduced.
Because the thickness of prefabricated bottom plate and cast-in-place coincide layer all reduces, can realize that the holistic thickness of coincide floor reduces, reduces the reinforcing bar content of basis and structural stress main part, reduces total cost.
Because the prefabricated bottom plate becomes thin, the side-close splicing bidirectional plate can be realized, a post-pouring belt does not need to be arranged between the two plates, the close splicing adopts the lap joint of the steel bars to form the bidirectional plate, and the factory production and the field construction are simplified.
Drawings
Figure 1 is a schematic structural view of a first embodiment of a composite floor slab with removable additional stiffness means according to the invention.
Fig. 2 is a schematic construction structure diagram according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an additional rigid member according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a concrete bump according to an embodiment of the invention.
Fig. 5 is a schematic construction structure diagram of the second embodiment of the present invention.
Fig. 6 is a schematic construction structure diagram of the third embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a fourth embodiment of the present invention.
Fig. 8 is a schematic construction structure diagram of the fourth embodiment of the present invention.
Fig. 9 is a schematic construction structure diagram of a fifth embodiment of the present invention.
Fig. 10 is a schematic structural view of an additional rigid member in the fifth embodiment of the present invention.
Fig. 11 is a schematic construction structure diagram of a sixth embodiment of the present invention.
Fig. 12 is a schematic structural view of an additional rigid member in the sixth embodiment of the present invention.
Fig. 13 is a bottom schematic view of an additional stiffness member in a sixth embodiment of the invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example one
As shown in fig. 1 to 4, a composite floor slab with a detachable additional rigidity device comprises a composite floor slab body 1 and a plurality of additional rigidity members 2, wherein the composite floor slab body 1 comprises a prefabricated bottom plate 3 and a plurality of connectors 4 arranged on the prefabricated bottom plate 3, and the connectors 4 are arranged in a multi-column distribution manner.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. The connector 4 is a concrete bump, the concrete bump and the prefabricated bottom plate are integrally cast or prefabricated in advance and then fixedly connected with the prefabricated bottom plate, preferably, the concrete bump is arranged during the pouring of the prefabricated bottom plate after the prefabrication, the prefabricated bottom plate is integrally formed after the concrete is solidified, the height of the concrete bump is the same as that of the cast-in-place layer, at least one shear steel bar 5 or a shear connector is prefabricated in the concrete bump, the concrete bump is square, and preferably, the four corners of the square concrete bump are provided with the shear steel bars 5.
A plurality of concrete lug equipartitions set up on prefabricated bottom plate 3, and a C shaped steel opening covers downwards on a plurality of concrete lugs on being listed as, makes many C shaped steel along 1 equidistant equipartition of length direction of coincide floor body sets up, two lateral wall terminal surfaces of C shaped steel with the direct laminating of face on prefabricated bottom plate 3 has seted up the bolt hole on the both sides wall of C shaped steel, has also seted up the bolt hole on the concrete lug of corresponding position, and connecting bolt 6 passes the both sides wall of concrete lug and C shaped steel with the two fixed connection.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of hanging points 7 are arranged on the top surface of the C-shaped steel, and the hanging points 7 are hanging rings. The laminated floor slab body 1 is transported and installed, the additional rigidity piece 2 is detached, and a cast-in-situ laminated slab layer can be poured after the detachment.
Example two
As shown in fig. 5, the composite floor slab with the detachable additional rigidity device comprises a composite floor slab body 1 and a plurality of additional rigidity pieces 2, wherein the composite floor slab body 1 comprises a prefabricated bottom plate 3 and a plurality of connecting bodies 4 arranged on the prefabricated bottom plate 3, and the plurality of connecting bodies 4 are distributed in multiple rows.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. The connector 4 is a concrete bump, the concrete bump and the prefabricated bottom plate are integrally cast or prefabricated in advance and then fixedly connected with the prefabricated bottom plate, preferably, the concrete bump is arranged during the pouring of the prefabricated bottom plate after the prefabrication, the prefabricated bottom plate is integrally formed after the concrete is solidified, the height of the concrete bump is the same as that of the cast-in-place layer, at least one shear steel bar 5 or a shear connector is prefabricated in the concrete bump, the concrete bump is square, and preferably, the four corners of the square concrete bump are provided with the shear steel bars 5.
A plurality of concrete lug equipartitions set up on prefabricated bottom plate 3, a C shaped steel opening down, both ends card are on a plurality of concrete lug upper surfaces, make many C shaped steel along 1 equidistant equipartition of length direction of coincide floor body sets up, two lateral wall terminal surfaces of C shaped steel with the upper surface of concrete lug is directly laminated, and a plurality of bolt holes have been seted up to the top terminal surface of C shaped steel, and the bolt hole has also been seted up to the concrete lug upper surface that corresponds the position, and connecting bolt 6 passes the top terminal surface of concrete lug and C shaped steel with the two fixed connection.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of hanging points 7 are arranged on the top surface of the C-shaped steel, and the hanging points 7 are hanging rings. In this embodiment, the additional rigidity member 2 can be detached after the laminated floor slab body 1 is transported and installed and a cast-in-place laminated slab layer can be poured.
EXAMPLE III
As shown in fig. 6, a composite floor slab with a detachable additional rigidity device comprises a composite floor slab body 1 and a plurality of additional rigidity members 2, wherein the composite floor slab body 1 comprises a prefabricated bottom plate 3 and a plurality of connecting bodies 4 arranged on the prefabricated bottom plate 3, and the plurality of connecting bodies 4 are distributed in multiple rows.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. The connector 4 is a concrete bump, the concrete bump and the prefabricated bottom plate are integrally cast or prefabricated in advance and then fixedly connected with the prefabricated bottom plate, preferably, the concrete bump is arranged during the pouring of the prefabricated bottom plate after the prefabrication, the prefabricated bottom plate is integrally formed after the concrete is solidified, the height of the concrete bump is the same as that of the cast-in-place layer, at least one shear steel bar 5 or a shear connector is prefabricated in the concrete bump, the concrete bump is square, and preferably, the four corners of the square concrete bump are provided with the shear steel bars 5.
A plurality of concrete lug equipartitions set up on prefabricated bottom plate 3, a C shaped steel opening upwards, locate one and go up a plurality of concrete lug upper surfaces, make many C shaped steel along 1 equidistant equipartition of length direction of coincide floor body sets up, the tank bottom lower surface of C shaped steel with the upper surface of concrete lug directly laminates, and a plurality of bolt holes have been seted up to the top terminal surface of C shaped steel, and the bolt hole has also been seted up to the concrete lug upper surface that corresponds the position, and connecting bolt 6 passes the top terminal surface of concrete lug and C shaped steel with the two fixed connection.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of suspension points (not shown in the figure) are arranged on the top surface of the C-shaped steel, and the suspension points are suspension rings. In this embodiment, the additional rigidity member 2 can be detached after the laminated floor slab body 1 is transported and installed and a cast-in-place laminated slab layer can be poured.
Example four
As shown in fig. 7 and 8, the composite floor slab with the detachable additional rigidity device comprises a composite floor slab body 1 and a plurality of additional rigidity members 2, wherein the composite floor slab body 1 comprises a prefabricated bottom plate 3 and a plurality of connecting bodies 4 arranged on the prefabricated bottom plate 3 in a prefabricated mode, and the connecting bodies 4 are arranged in a multi-column distribution mode.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. Connector 4 be pre-buried in prefabricated bottom plate 3's metal connecting piece, metal connecting piece are for the connecting plate that has the bolt hole, and a plurality of connecting plate equipartitions are on prefabricated bottom plate 3, and C shaped steel opening is downward, cover on a plurality of connecting plates on one, many C shaped steel along 1 equidistant equipartition of coincide floor body sets up, two lateral wall terminal surfaces of C shaped steel with prefabricated bottom plate 3 goes up the direct laminating of face, and the bolt hole has been seted up to corresponding position on the both sides wall of C shaped steel, and connecting bolt 6 passes the bolt hole of connecting plate and the bolt hole of the both sides wall of C shaped steel with the two fixed connection.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of hanging points 7 are arranged on the top surface of the C-shaped steel, and the hanging points 7 are hanging rings. The laminated floor slab body 1 is transported and installed, the additional rigidity piece 2 is detached, and a cast-in-situ laminated slab layer can be poured after the detachment.
EXAMPLE five
As shown in fig. 9 and 10, the composite floor with the detachable additional rigidity device comprises a composite floor body 1 and a plurality of additional rigidity members 2, wherein the composite floor body 1 comprises a prefabricated bottom plate 3 and a plurality of connecting bodies 4 arranged on the prefabricated bottom plate 3, and the connecting bodies 4 are arranged in a multi-column distribution manner.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. Connector 4 be pre-buried in prefabricated bottom plate 3's metal connecting piece, metal connecting piece are equipped with the couple for having the connecting plate of couple promptly on the body of connecting plate, a plurality of connecting plate equipartitions on prefabricated bottom plate 3, C shaped steel opening down, cover on a plurality of connecting plates on one, many C shaped steel along 1 equidistant equipartition of coincide floor body sets up, two lateral wall terminal surfaces of C shaped steel with prefabricated bottom plate 3 goes up the direct laminating of face, and the bolt hole has been seted up to the corresponding position on the both sides wall of C shaped steel, and connecting bolt 6 passes the bolt hole of connecting plate fixed, and the body of rod and the couple of bolt articulate fixedly. Preferably, the bolt holes in the two side walls of the C-shaped steel are strip-shaped holes, so that the structure is convenient to adjust and disassemble.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of hanging points 7 are arranged on the top surface of the C-shaped steel, and the hanging points 7 are hanging rings. The laminated floor slab body 1 is transported and installed, the additional rigidity piece 2 is detached, and a cast-in-situ laminated slab layer can be poured after the detachment.
EXAMPLE six
As shown in fig. 11, 12 and 13, the composite floor slab with the detachable additional rigidity device comprises a composite floor slab body 1 and a plurality of additional rigidity members 2, wherein the composite floor slab body 1 comprises a prefabricated bottom plate 3 and a plurality of connecting bodies 4 arranged on the prefabricated bottom plate 3, and the plurality of connecting bodies 4 are distributed in multiple rows.
Specifically, the additional rigid member 2 is a channel steel or a C-shaped steel, and the embodiment is preferably a C-shaped steel. Connector 4 be pre-buried in prefabricated bottom plate 3's metal connecting piece, metal connecting piece are pre-buried threaded sleeve, and a plurality of connecting plate equipartitions are on prefabricated bottom plate 3, and C shaped steel opening is downward, cover on a plurality of connecting plates on one, many C shaped steel along 1 equidistant equipartition of coincide floor body sets up, two lateral wall terminal surfaces of C shaped steel with the direct laminating of face on prefabricated bottom plate 3. The corresponding position at C shaped steel top has seted up the bolt hole, and connecting bolt 6 passes bolt hole and pre-buried threaded sleeve threaded connection. The top of pre-buried threaded sleeve is equipped with apron 8, and 8 both ends of apron weld in C shaped steel opening part, and apron 8 and prefabricated bottom plate laminating, apron 8 can locate on the pre-buried threaded sleeve or between the pre-buried sleeve, and when apron 8 was located on the pre-buried threaded sleeve, the last through-hole that corresponds with pre-buried threaded sleeve position that is equipped with of apron 8, the diameter of through-hole was greater than pre-buried threaded sleeve's diameter, and in this embodiment, apron 8 was located on the pre-buried threaded sleeve.
The two side surfaces of the C-shaped steel are of porous hollow structures, specifically are trussed, a plurality of hanging points 7 are arranged on the top surface of the C-shaped steel, and the hanging points 7 are hanging rings. The laminated floor slab body 1 is transported and installed, the additional rigidity piece 2 is detached, and a cast-in-situ laminated slab layer can be poured after the detachment.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (17)
1. The utility model provides a coincide floor with can dismantle additional rigidity device, characterized by: including coincide floor body and a plurality of additional rigidity piece, coincide floor body includes prefabricated bottom plate and establishes a plurality of connectors on prefabricated bottom plate, additional rigidity piece pass through the connector with fixed connection can be dismantled to coincide floor body, additional rigidity piece with coincide floor body is direct to be laminated.
2. A composite floor slab with removable additional stiffness means as claimed in claim 1, wherein: the additional rigidity piece is channel steel or C-shaped steel, and the channel steel or the C-shaped steel is attached to the surface of the laminated floor slab body.
3. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: the connector is a concrete bump, the opening of the additional rigidity piece is downward, the additional rigidity piece covers the concrete bump, two side wall end faces of the channel steel or the C-shaped steel are attached to the upper surface of the prefabricated bottom plate, and the additional rigidity piece is connected with the concrete bump through a bolt.
4. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: the connector is the concrete lug, channel-section steel or C shaped steel opening is down, locate a plurality ofly the upper surface of concrete lug, two lateral wall terminal surfaces of channel-section steel or C shaped steel laminate with the upper surface of concrete lug, channel-section steel or C shaped steel with the concrete lug passes through bolted connection.
5. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: the connector is the concrete lug, channel-section steel or C shaped steel opening upwards, locate a plurality ofly the upper surface of concrete lug, the tank bottom lower surface of channel-section steel or C shaped steel with the upper surface laminating of concrete lug, channel-section steel or C shaped steel with the concrete lug passes through bolted connection.
6. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: the connector is a metal connecting piece, and the metal connecting piece is embedded in the prefabricated bottom plate.
7. A composite floor slab with removable additional stiffness means as claimed in claim 6, wherein: the metal connecting piece is a connecting plate with a bolt hole, the opening of the channel steel or the C-shaped steel is arranged downwards, the end faces of two side walls of the channel steel or the C-shaped steel are abutted to the upper surface of the prefabricated bottom plate in a fitting mode, connecting holes are formed in the side wall of the channel steel or the C-shaped steel, and the channel steel or the C-shaped steel is connected with the connecting plate through bolts.
8. A composite floor slab with removable additional stiffness means as claimed in claim 6, wherein: the metal connecting piece is a connecting plate with a hook, the opening of the channel steel or the C-shaped steel is arranged downwards, the end faces of two side walls of the channel steel abut against the upper surface of the prefabricated bottom plate in a fitting mode, a hanging rod is arranged in the groove of the channel steel or the C-shaped steel, and the hanging rod is connected with the hook of the connecting plate.
9. A composite floor slab with removable additional stiffness means as claimed in claim 6, wherein: the metal connecting piece is a pre-buried threaded sleeve, the opening of the channel steel or the C-shaped steel is arranged downwards, the end faces of two side walls of the channel steel or the C-shaped steel are abutted to the upper surface of the prefabricated bottom plate in a fit mode, and the top of the channel steel or the C-shaped steel is connected with the pre-buried threaded sleeve through bolts.
10. A composite floor slab with removable additional stiffness means as claimed in any one of claims 3 to 5, characterised in that: at least one shear steel bar or shear connector is prefabricated in the concrete bump.
11. A composite floor slab with removable additional stiffness means as claimed in any one of claims 3 to 5, characterised in that: the concrete bump and the prefabricated bottom plate are integrally cast or are fixedly connected with the prefabricated bottom plate after being prefabricated in advance, and the height of the concrete bump is the same as that of the cast-in-place layer.
12. A composite floor slab with removable additional stiffness means as claimed in claim 1, wherein: the additional rigidity pieces are uniformly distributed on the laminated floor slab body.
13. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: many channel-section steel or C shaped steel along coincide floor body length direction equidistant equipartition sets up.
14. A composite floor slab with removable additional stiffness means as claimed in claim 1, wherein: the thickness of the prefabricated base plate is 3-5 cm.
15. A composite floor slab with removable additional stiffness means as claimed in claim 2, wherein: and two side surfaces of the channel steel or the C-shaped steel are of porous hollow structures.
16. A composite floor slab with removable additional stiffness means as claimed in claim 1, wherein: and suspension points are arranged on the additional rigidity piece.
17. A composite floor slab with removable additional stiffness means as claimed in claim 9, wherein: the opening part of the additional rigidity piece is provided with a cover plate, and the lower plate surface of the cover plate is attached to the upper plate surface of the prefabricated bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529636.5A CN113123504A (en) | 2021-05-14 | 2021-05-14 | Laminated floor slab with detachable additional rigidity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529636.5A CN113123504A (en) | 2021-05-14 | 2021-05-14 | Laminated floor slab with detachable additional rigidity device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113123504A true CN113123504A (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110529636.5A Pending CN113123504A (en) | 2021-05-14 | 2021-05-14 | Laminated floor slab with detachable additional rigidity device |
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| Country | Link |
|---|---|
| CN (1) | CN113123504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175141A (en) * | 2021-05-14 | 2021-07-27 | 重庆中科建筑科技(集团)有限公司 | Construction method of composite floor slab with detachable additional rigidity device |
| CN113982168A (en) * | 2021-11-29 | 2022-01-28 | 易建网科技有限公司 | Detachable superimposed floor slab made of UHPC |
-
2021
- 2021-05-14 CN CN202110529636.5A patent/CN113123504A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175141A (en) * | 2021-05-14 | 2021-07-27 | 重庆中科建筑科技(集团)有限公司 | Construction method of composite floor slab with detachable additional rigidity device |
| CN113982168A (en) * | 2021-11-29 | 2022-01-28 | 易建网科技有限公司 | Detachable superimposed floor slab made of UHPC |
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