CN114382212B - Composite hollow filling floor support plate and floor slab free of suspended ceiling punching and demolding - Google Patents
Composite hollow filling floor support plate and floor slab free of suspended ceiling punching and demolding Download PDFInfo
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- CN114382212B CN114382212B CN202210071764.4A CN202210071764A CN114382212B CN 114382212 B CN114382212 B CN 114382212B CN 202210071764 A CN202210071764 A CN 202210071764A CN 114382212 B CN114382212 B CN 114382212B
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- floor
- uhpc
- bottom plate
- free
- support plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000004080 punching Methods 0.000 title claims abstract description 11
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 89
- 239000004567 concrete Substances 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000004574 high-performance concrete Substances 0.000 claims description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 20
- 238000010422 painting Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005034 decoration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
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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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and demolding, wherein the floor support plate comprises a UHPC bottom plate and a filling box; the bottom plate comprises a back surface and an exposed surface; the bottom plate is pre-embedded with a hanging connecting assembly, the hanging connecting assembly comprises an internal thread pipe, a screw rod and connecting wings, the internal thread pipe is exposed out of the exposed surface to form a hanging threaded hole, and the screw rod is partially extended out of the back surface and is fixedly connected with concrete; the back of the bottom plate is fixedly connected with the filling box through a screw rod; the floor support plate is used as a mold removing-free bottom template, the filling box is buried in cast-in-place concrete of the hollow floor system, and the exposed surface of the bottom plate is used as a painting-free bottom surface. According to the invention, the self weight is reduced by arranging the filling box, the floor is arranged to improve the strength of the floor, the form removal is not needed, the construction period is shortened, the construction efficiency is improved, the exposed surface is smoother, the secondary painting is not needed, the hanging connecting component is arranged, so that workers can identify the hollow area through the hanging threaded hole, the operation efficiency is improved, the hanging is carried out through the hanging threaded hole, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and demolding.
Background
Along with the improvement of domestic economic level and living level, people demand modern buildings more and more, the floor slab is an indispensable building component in building houses, and is positioned at the top of the houses and supported by beams, columns and other supporting objects, in the prior art, along with the increasing of large-span concrete structures, more and more floor slabs adopt hollow floor slab structure technology, part of concrete is replaced by light filling materials, the stress performance of the structure is not affected basically, in order to improve the strength of the hollow floor slab, the method generally adopts a mode of increasing the thickness of the floor slab, but the dead weight is increased, the general hollow floor slab needs to be disassembled, the construction period is long, the construction efficiency is lower, the surface of the constructed floor slab is rough, the construction area of the constructed hollow floor slab is difficult to be confirmed, the construction efficiency of workers is reduced, holes are required to be opened again to be connected with external devices during decoration, the damage to the floor slab is possibly caused, and the construction cost is also increased.
In view of the foregoing, it is desirable to provide a ceiling-free perforated and form-stripping-free composite hollow filled floor deck and floor slab that overcomes or at least alleviates the above-mentioned drawbacks.
Disclosure of Invention
The invention mainly aims to provide a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and demolding, and aims to solve the problems that the existing floor slab construction needs demolding, the surface is rough, the re-painting is needed, and the hollow area of a hollow floor slab is difficult to confirm. In order to achieve the aim, the invention provides a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and demolding, wherein the floor support plate comprises a UHPC bottom plate and at least one filling box; wherein the UHPC bottom plate is formed by demoulding high-performance concrete in a mould coated with a mould release agent; the UHPC bottom plate comprises a back surface and an exposed surface, wherein the back surface is oppositely arranged, and the exposed surface is formed by demolding after the demolding agent is smeared; the UHPC bottom plate is embedded with a hanging connection assembly, the hanging connection assembly comprises an internal thread pipe, a screw rod and a connection wing, the screw rod partially extends into the internal thread pipe, the connection wing is fixedly connected to the external wall of the internal thread pipe or the screw rod, the internal thread pipe is exposed out of the exposed surface to form a hanging threaded hole, the screw rod partially extends out of the back surface, and the connection wing is embedded in the UHPC bottom plate; the back surface of the UHPC bottom plate is fixedly connected with the filling box through the screw rod; the screw is sleeved with a reinforcing steel bar, the reinforcing steel bar comprises a circular rib and an extending rib, the circular rib is sleeved on the screw, the screw is provided with a nut for fixing the circular rib, and the extending rib extends out of the filling box; the floor support plate is used as a disassembly-free bottom template of the hollow floor, the filling box is buried in cast-in-place concrete of the hollow floor, and the exposed surface of the UHPC bottom plate is used as a painting-free bottom surface of the hollow floor.
Preferably, the packing box comprises side plates and a top plate; the side plates are fixedly connected to the back surface of the UHPC bottom plate, the top plate is fixedly connected with the free ends of the side plates to form the filling box, and a supporting structure is further arranged in the filling box.
Preferably, the filling box is square, and the hanging connection assemblies are arranged at the middle positions of the UHPC bottom plate corresponding to the four side walls of the filling box.
Preferably, the UHPC bottom plate is a high-performance concrete curing plate with unbinding steel bars, and an insulating layer is further arranged in the UHPC bottom plate.
Preferably, the UHPC bottom plate is square, and the back surface of the UHPC bottom plate is convexly provided with a cross beam and a longitudinal beam which are perpendicular to each other.
Preferably, a buckle is pre-buried on the cross beam or the longitudinal beam, the buckle partially extends out of the back surface, and a barb structure is formed at the free end of the buckle.
Preferably, the cross beam and the longitudinal beam are formed with square grooves, a plurality of side plates are arranged in the square grooves, the cross beam and the longitudinal beam divide the back surface into groove arrays for accommodating the filling boxes, and each groove accommodates one filling box.
Preferably, the sides of the filling box are each provided with reinforcing ribs which are connected to each other to form a mounting groove for receiving the filling box.
Preferably, two of four side surfaces of the UHPC base plate are provided with concave splice seams, the other two side surfaces are provided with convex structures matched with the splice seams, and a plurality of UHPC base plates are spliced through the splice seams and the convex structures.
The invention also provides a hollow floor slab, which comprises the composite hollow filling floor support plate, cast-in-place concrete poured above the floor support plate and a reinforcement cage fixedly connected to the UHPC bottom plate.
Compared with the prior art, the composite hollow filling floor support plate and the floor slab without suspended ceiling punching and demolding have the following beneficial effects:
the invention provides a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and demolding, wherein the floor support plate comprises a UHPC bottom plate and a filling box; the bottom plate comprises a back surface which is oppositely arranged and an exposed surface which is formed by demoulding after being smeared with a demoulding agent; the bottom plate is pre-embedded with a hanging connecting assembly, the hanging connecting assembly comprises an internal thread pipe, a screw rod and connecting wings, the internal thread pipe is exposed out of the exposed surface to form a hanging threaded hole, and the screw rod is partially extended out of the back surface and is fixedly connected with concrete; the back of the bottom plate is fixedly connected with the filling box through a screw rod; the floor support plate is used as a disassembly-free mold bottom template of the hollow floor, the filling box is buried in cast-in-place concrete of the hollow floor, and the exposed surface of the bottom plate is used as a painting-free bottom surface of the hollow floor. According to the invention, by arranging the filling box, the dead weight can be reduced, the strength of the floor system is improved by arranging the UHPC bottom plate, the floor support plate does not need to be disassembled, the construction period is shortened, the construction efficiency is improved, the exposed surface of the UHPC bottom plate is smooth, a hanging connection assembly is not required to be painted again, a worker can identify a hollow area through the hanging threaded hole, the operation efficiency is improved, the hanging can be directly carried out through the hanging threaded hole, and the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a floor support plate according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a second schematic view of a part of a floor support plate according to another embodiment of the present invention;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a top view of a floor support plate according to one embodiment of the invention;
FIG. 6 is a schematic view of a floor support plate according to another embodiment of the present invention;
FIG. 7 is an enlarged schematic view of FIG. 6 at C;
FIG. 8 is a top view of a floor support plate in one embodiment of the invention;
reference numerals illustrate:
UHPC backplane 200; a beam 210; a stringer 220; square grooves 230; a clasp 240; an inverted hook structure 241; a hanger connection assembly 250; a screw 251; reinforcing bars 252; round rib 253; extending ribs 254; a nut 255; a mounting groove 260; reinforcing ribs 261; filling the tank 300; a side plate 310; a fixed bottom plate 311; a top plate 320; a splice joint 410; raised structures 420.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-8, the present invention provides a composite hollow filling floor support plate and a floor slab without suspended ceiling punching and removing. The floor support plate comprises a UHPC base plate 200 and at least one filling box 300; wherein, the UHPC bottom plate 200 is formed by demoulding high-performance concrete in a mould coated with a mould release agent; the UHPC chassis 200 includes a back surface (not shown) disposed opposite to each other and an exposed surface (not shown) formed by demolding after the mold release agent is applied;
specifically, the building carrier plate (not shown) provided by the invention adopts a hollow floor structure technology, the UHPC base plate 200 and at least one filling box 300 are arranged, the size of the UHPC base plate 200 and the number of the filling boxes 300 can be set according to actual needs, the UHPC base plate 200 is formed by demoulding high-performance concrete in a mould coated with a demoulding agent, the UHPC base plate 200 comprises a back surface and an exposed surface, the back surface is a surface connected with other structures, the exposed surface is a surface formed by solidifying and demoulding the high-performance concrete in the mould coated with the demoulding agent, the exposed surface is flat and smooth, the exposed surface is used as the surface of a floor, and no re-painting is needed when decoration operation is carried out.
The hanging connection assembly 250 is pre-embedded on the UHPC base plate 200, the hanging connection assembly 250 includes an internal threaded pipe, a screw rod 251 and a connection wing (not shown), the screw rod 251 partially extends into the internal threaded pipe (not shown), the connection wing is fixedly connected to the outer wall of the hanging connection assembly 250, the internal threaded pipe is exposed from the exposed surface to form a hanging threaded hole (not shown), the screw rod 251 partially extends out of the back surface, and the connection wing is pre-embedded in the UHPC base plate 200; the back surface of the UHPC base plate 200 is fixedly connected to the filling box 300 by the screw 251;
in detail, the hanging connection assembly 250 is pre-buried on the UHPC base plate 200, the hanging connection assembly 250 includes an internal threaded pipe, a screw 251 and connection wings, the external threads of the screw 251 and the internal threads of the internal threaded pipe are matched, the screw 251 partially stretches into the internal threaded pipe to be fixedly connected with the internal threaded pipe, the connection wings are fixedly connected with the outer wall of the hanging connection assembly 250, because the connection wings need to be pre-buried in the UHPC base plate 200, the specific positions of the connection wings are set according to the position and actual conditions of the UHPC base plate 200, the connection wings can be fixedly connected with the outer wall of the internal threaded pipe, and the connection wings can also be fixedly connected with the outer wall of the screw 251.
It should be understood that the pre-buried hanger connection assembly 250, the internal threaded pipe of which is exposed to the exposed surface to form a hanger threaded hole, is located on the exposed surface and can be seen with naked eyes after the construction for the convenience of the worker, and the screw 251 partially extends to the rear surface to be fixedly connected with the concrete, the screw 251 fixes the packing box 300 to the rear surface of the UHPC base plate 200, and the connection wings are pre-buried in the UHPC base plate 200 for reinforcing the connection and exerting the stress.
The screw 251 is sleeved with a reinforcing steel bar 252, the reinforcing steel bar 252 comprises a circular rib 253 and an extending rib 254, the circular rib 253 is sleeved on the screw 251, the screw 251 is provided with a nut 255 for fixing the circular rib 253, and the extending rib 254 extends out of the filling box 300;
it should be noted that, the screw 251 is further provided with a reinforcing bar 252, the filling box 300 passes through the screw 251, then the reinforcing bar 252 is sleeved on the screw 251, the reinforcing bar 252 comprises a circular rib 253 and two parts of an extending rib 254, the circular rib 253 is sleeved on the screw 251, the nut 255 is used for fixing the circular rib 253 and fixing the filling box 300 on the UHPC base plate 200 together, the extending rib 254 is fixedly connected with the outer edge of the circular rib 253 and extends out of the filling box 300 for being connected with a reinforcement cage and for reinforcing the connection of the UHPC base plate 200 and cast-in-place concrete, and meanwhile, the circular rib 253 can also play a role of a gasket as the nut 255.
The floor support plate is used as a disassembly-free mold bottom template of the hollow floor, the filling box 300 is buried in cast-in-place concrete of the hollow floor, and the exposed surface of the UHPC bottom plate 200 is used as a painting-free bottom surface of the hollow floor.
Specifically, the floor carrier plate is used as a disassembly-free mold bottom template of the hollow floor, the filling box 300 is buried in cast-in-place concrete of the hollow floor during construction, the exposed surface of the UHPC bottom plate 200 is used as a painting-free bottom surface of the hollow floor, and the exposed surface is formed after high-performance concrete in a mold coated with a release agent is cured and demoulded, so that the exposed surface is flat and does not need to be painted again.
It should be appreciated that the provision of the UHPC base plate 200 increases the rigidity of the floor slab, the exposed surface free of painting can shorten the construction period, the floor support plate can not only provide flexible application space, but also reduce the structural dead weight, has a large span, can adapt to the requirements of multi-story and high-rise buildings with large open spaces and large spaces, improves the sound insulation effect and reduces the cost; the hanging connection assembly 250 is arranged, so that workers can identify the hollow area as soon as possible by hanging the threaded holes to identify the hollow area without knocking the floor during decoration operation, the difficulty and the error rate of construction are reduced, the operation efficiency of the workers is improved, the workers can directly hang the hollow area through the hanging threaded holes, the holes can be reduced, the damage to the floor can be reduced, the expenditure of opening holes is saved, and the cost is reduced.
As a preferred embodiment of the present invention, the packing box 300 includes a side plate 310 and a top plate 320; a plurality of side plates 310 are fixedly coupled to the rear surface of the UHPC bottom plate 200, and the top plate 320 is fixedly coupled to free ends of the plurality of side plates 310 to form the packing box 300, and a supporting structure (not shown) is further provided in the packing box 300.
In detail, the packing box 300 is made of a light packing material, and the specific material can be set according to actual needs, for example, a metal sheet can be used, the packing box 300 is provided with a side plate 310 and a top plate 320, the side plate 310 is fixed on the back of the UHPC bottom plate 200, and the top plate 320 is fixedly connected with the side plate 310 to form the packing box 300; wherein, be provided with the fixed bottom plate 311 that the screw rod 251 of being convenient for is fixed on the curb plate 310, and the screw rod 251 is fixed the back at UHPC bottom plate 200 with filling box 300 through fixed bottom plate 311, still is provided with bearing structure in filling box 300, and bearing structure's concrete structure can design according to actual conditions, sets up bearing structure and makes the stable in structure of filling box 300, and the supporting force reinforcing.
As a preferred embodiment of the present invention, the filling box 300 is square, and the hanging connection assemblies 250 are disposed at intermediate positions of the UHPC bottom plate 200 corresponding to the four sidewalls of the filling box 300.
Specifically, the shape of the filling box 300 can be set according to actual needs, in this embodiment, the filling box 300 is set to be a cuboid, the positions and the number of the hanging connection assemblies 250 can be set according to actual needs, only a worker can identify the hollow area of the filling box 300 through the hanging threaded holes during decoration operation, in this embodiment, the hanging connection assemblies 250 are arranged at the middle positions of the four side walls of the UHPC bottom plate 200 corresponding to the filling box 300, because the hanging connection assemblies 250 are embedded, the positions of the filling box 300 can be accurately positioned, during installation, the filling box 300 can be quickly installed, the hollow area of the filling box 300 can be determined through the four hanging connection assemblies 250, the hanging threaded holes can be seen on the exposed surface of the UHPC bottom plate 200, the hanging threaded holes are used for identification, and error floors are not required to be knocked, so that the construction efficiency is improved, meanwhile, the hanging is directly carried out through the hanging threaded holes, the cost is saved; in addition, by providing the hanging connection assembly 250 in the middle of the four sidewalls of the packing box 300, the packing box 300 is well fixed to the rear surface of the UHPC chassis 200, and the stability of the packing box 300 fixed to the rear surface is maintained.
Further, the UHPC bottom plate 200 is a high-performance concrete cured plate with unbuckled steel bars, and an insulating layer (not shown) is further provided in the UHPC bottom plate 200.
It should be appreciated that the UHPC base plate 200 is made of ultra-high performance concrete, has ultra-high strength, ultra-high toughness and ultra-durability, has excellent mechanical and physical properties, can increase the service life of the building structure, improves the casting safety performance, and simultaneously, does not need to use reinforcing steel bars, and saves working procedures; in addition, an insulating layer is further arranged in the UHPC bottom plate 200, and the performance can be improved by arranging the insulating layer, so that the effects of fire prevention, heat preservation, heat insulation, water resistance, moisture resistance and the like are achieved.
As a preferred embodiment of the present invention, the UHPC bottom board 200 has a square shape, and the rear surface of the UHPC bottom board 200 is convexly provided with a cross beam 210 and a longitudinal beam 220, which are perpendicular to each other. In detail, the UHPC bottom board 200 is square, so that the filling box 300 is convenient to connect, and the transverse beams 210 and the longitudinal beams 220 which are perpendicular to each other are additionally arranged on the back surface of the UHPC bottom board 200, so that the weight transmitted by the floor slab can be borne, the integrity of the structure is enhanced, and the integral stress and deformation of the structure are coordinated.
As a preferred embodiment of the present invention, the cross member 210 and the side member 220 are formed with square grooves 230, and a plurality of side plates 310 are disposed in the square grooves 230, and the cross member 210 and the side member 220 divide the rear surface into an array of grooves (not shown) for accommodating the filling boxes 300, each of which accommodates one of the filling boxes 300.
Specifically, the added cross beams 210 and the longitudinal beams 220 are mutually perpendicular to form square grooves 230, the size of each square groove 230 can be set according to actual needs, the size of each groove can be set by adjusting the distance between the cross beam 210 and the corresponding longitudinal beam 220, a plurality of cross beams 210 and the corresponding longitudinal beams 220 are arranged to form a groove array for accommodating the filling box 300, each groove accommodates one filling box 300, the position of the filling box 300 can be positioned in advance, and the working efficiency of the fixedly connected filling box 300 is greatly improved.
Further, the cross beam or 210 and the longitudinal beam 220 are embedded with a buckle 240, the buckle 240 partially protrudes from the back surface, and a free end of the buckle 240 is formed with a barb structure 241. It should be noted that the pre-embedded buckle 240 plays a role of fixedly connecting other components, so that the free end of the buckle 240 is provided with a reverse hook structure 241 so as to be convenient for connecting with other components; the specific installation position of the buckle 240 can be set according to practical situations, in this embodiment, the position of the buckle 240 is set in the cross beam 210 or the longitudinal beam 220, so that the height of the buckle 240 can be increased, and the connection between the buckle 240 and the reinforcement cage can be enhanced.
Further, the sides of the packing box 300 are provided with reinforcing ribs 261, and the reinforcing ribs 261 are connected with each other to form a mounting groove 260 accommodating the packing box 300. It should be understood that the present embodiment is further provided with the reinforcing ribs 261 at the side edges of the packing box 300, and the reinforcing ribs 261 are connected with each other to form the mounting groove 260 accommodating the packing box 300, so that the mounting groove 260 can facilitate the fixing of the mounting groove 260, restrict the movement of the packing box 300, and the mounting groove 260 can not only increase the strength, but also strengthen the connection of the bottom plate with the concrete.
As a preferred embodiment of the present invention, two sides of the four sides of the UHPC base board 200 are provided with concave splice seams 410, and the other two sides are provided with convex structures 420 matched with the splice seams 410, and a plurality of UHPC base boards 200 are spliced through the splice seams 410 and the convex structures 420.
In detail, in the present embodiment, concave splice joints 410 are provided on two sides of four sides of the UHPC base plate 200, and convex structures 420 matched with the splice joints 410 are provided on the other two sides, so that a plurality of UHPC base plates 200 can be spliced by the splice joints 410 and the convex structures 420, and thus the size of the floor support plate actually required can be designed, and the design is simple and practical.
The invention also provides a hollow floor slab (not shown), which comprises the composite hollow filling floor support plate, cast-in-place concrete (not shown) poured above the floor support plate, and a reinforcement cage (not shown) fixedly connected to the UHPC bottom plate 200. It should be noted that, building carrier plate and steel reinforcement cage fixed connection, pour the concrete again, form hollow floor promptly, the steel reinforcement cage can be connected through the buckle 240 that sets up on UHPC bottom plate 200, and buckle 240 is pre-buried in UHPC bottom plate 200's setting earlier, and becomes an organic wholely with UHPC bottom plate 200, utilizes buckle 240 to be connected with the steel reinforcement cage, firm in connection is reliable.
The principle of this embodiment will be briefly described below during construction, according to the UHPC base plate 200 as described above, a base plate mold with a thickness of less than 20 cm may be manufactured, a mold release agent is applied to the bottom, and a hanging connection assembly 250 is embedded in a preset position, a base plate is poured and molded, the hanging connection assembly 250 and the UHPC base plate 200 are integrated, the UHPC base plate 200 is formed after demolding, an internal threaded pipe forms a hanging threaded hole on an exposed surface of the UHPC base plate 200 for identifying a hollow area and hanging other components, a screw 251 extends out of the back surface of the UHPC base plate 200, a filling box 300 is fixed on the UHPC base plate 200 by using the screw 251, a composite hollow filling floor support plate free of punching and demolding is obtained, an extending rib 254 is used for connecting with a reinforcement cage, during construction, the extending rib 254 is fixed with the reinforcement cage, the reinforcement cage is also fixedly connected with a buckle 240 on the UHPC base plate 200, a hollow floor slab is formed by pouring concrete, the reinforcement cage 252 can strengthen the connection between the base plate and concrete, and the hollow floor slab is obtained after demolding, the mold release process is finished, the mold release process is flattened by applying the mold release agent, the filling box 300 is fixed on the screw 251 to fix the filling box bottom plate 200 onto the UHPC base plate 200, so that the floor slab is used for removing construction efficiency is shortened, construction process is shortened; the floor support plate not only can provide flexible application space, but also can lighten the self weight of the structure, has large span, can adapt to the requirements of multi-story and high-rise buildings with large space, improves the sound insulation effect and reduces the cost; meanwhile, the hanging connection assembly 250 is arranged, so that workers can identify the hollow area through hanging the threaded holes during decoration operation, the hollow area can be identified as soon as possible without knocking the floor slab, the construction difficulty and the failure rate are reduced, the operation efficiency of the workers is improved, the workers can directly hang through the hanging threaded holes, the expenditure of hole opening is saved, and the cost is reduced.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. The composite hollow filling floor support plate is characterized by comprising a UHPC bottom plate and at least one filling box; wherein the UHPC bottom plate is formed by demoulding high-performance concrete in a mould coated with a mould release agent; the UHPC bottom plate comprises a back surface and an exposed surface, wherein the back surface is oppositely arranged, and the exposed surface is formed by demolding after the demolding agent is smeared;
the UHPC bottom plate is embedded with a hanging connection assembly, the hanging connection assembly comprises an internal thread pipe, a screw rod and a connection wing, the screw rod partially stretches into the internal thread pipe, the connection wing is fixedly connected to the outer wall of the internal thread pipe or the outer wall of the screw rod, the internal thread pipe is exposed out of the exposed surface to form a hanging threaded hole, the screw rod partially stretches out of the back surface, and the connection wing is embedded in the UHPC bottom plate;
the back surface of the UHPC bottom plate is fixedly connected with the filling box through the screw rod;
the screw is sleeved with a reinforcing steel bar, the reinforcing steel bar comprises a circular rib and an extending rib, the circular rib is sleeved on the screw, the screw is provided with a nut for fixing the circular rib, and the extending rib extends out of the filling box;
the floor support plate is used as a disassembly-free bottom template of the hollow floor, the filling box is buried in cast-in-place concrete of the hollow floor, and the exposed surface of the UHPC bottom plate is used as a painting-free bottom surface of the hollow floor.
2. The ceiling-free perforated form removal-free composite hollow filled floor support plate of claim 1, wherein: the filling box comprises side plates and a top plate; the side plates are fixedly connected to the back surface of the UHPC bottom plate, the top plate is fixedly connected with the free ends of the side plates to form the filling box, and a supporting structure is further arranged in the filling box.
3. The ceiling-free perforated form removal-free composite hollow filled floor support plate of claim 1, wherein: the filling box is square, and the middle positions of the UHPC bottom plate, which correspond to the four side walls of the filling box, are respectively provided with the hanging connection assembly.
4. The ceiling-free perforated form removal-free composite hollow filled floor support plate of claim 1, wherein: the UHPC bottom plate is a high-performance concrete curing plate with unbinding steel bars, and an insulation layer is further arranged in the UHPC bottom plate.
5. The ceiling-free perforated and form-removed composite hollow filled floor support plate of claim 2, wherein said UHPC floor is square and said rear face of said UHPC floor is provided with a cross beam and a longitudinal beam that are perpendicular to each other.
6. The composite hollow filled floor support plate without suspended ceiling punching and demolding according to claim 5, wherein a buckle is pre-embedded on the cross beam or the longitudinal beam, the buckle partially extends out of the back surface, and a reverse hook structure is formed at the free end of the buckle.
7. The ceiling-free, hole-punched, form-removed, composite hollow filled floor deck of claim 5, wherein said cross beams and said stringers form square grooves, a plurality of said side plates are disposed in said square grooves, said cross beams and said stringers divide said back face into an array of grooves for receiving said filled boxes, one for each groove.
8. The ceiling-free, hole-punched, form-removed, composite hollow filled floor support plate of claim 5, wherein the sides of the filled boxes are each provided with a reinforcing rib, the reinforcing ribs being interconnected to form a mounting channel for receiving the filled boxes.
9. The ceiling-free perforated and form-detachable composite hollow filled floor support plate of claim 5, wherein two of four sides of said UHPC base plate are provided with concave splice seams, and the other two sides are provided with raised structures that mate with said splice seams, and a plurality of said UHPC base plates are spliced by said splice seams and said raised structures.
10. A hollow floor slab comprising the composite hollow filled floor slab of any one of claims 1-9, cast-in-place concrete poured over the floor slab, and a reinforcement cage fixedly attached to the UHPC floor slab.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210071764.4A CN114382212B (en) | 2022-01-21 | 2022-01-21 | Composite hollow filling floor support plate and floor slab free of suspended ceiling punching and demolding |
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| CN202210071764.4A CN114382212B (en) | 2022-01-21 | 2022-01-21 | Composite hollow filling floor support plate and floor slab free of suspended ceiling punching and demolding |
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| CN114382212A CN114382212A (en) | 2022-04-22 |
| CN114382212B true CN114382212B (en) | 2024-01-30 |
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| CN202210071764.4A Active CN114382212B (en) | 2022-01-21 | 2022-01-21 | Composite hollow filling floor support plate and floor slab free of suspended ceiling punching and demolding |
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| CN114837338A (en) * | 2022-05-23 | 2022-08-02 | 安徽泽北新材料科技有限公司 | Gap filling-free mold shell |
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| CN110607867A (en) * | 2019-08-20 | 2019-12-24 | 吴充 | Non-dismantling mold laminated slab |
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| JPH08218538A (en) * | 1995-02-15 | 1996-08-27 | Kawatetsu Galvanizing Co Ltd | Floor board structure for building structure and ceiling hanging hardware |
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