CN114382212A - Exempt from furred ceiling to punch and exempt from compound hollow building carrier plate and floor of filling of form removal - Google Patents
Exempt from furred ceiling to punch and exempt from compound hollow building carrier plate and floor of filling of form removal Download PDFInfo
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- CN114382212A CN114382212A CN202210071764.4A CN202210071764A CN114382212A CN 114382212 A CN114382212 A CN 114382212A CN 202210071764 A CN202210071764 A CN 202210071764A CN 114382212 A CN114382212 A CN 114382212A
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- floor
- free
- bottom plate
- filling
- uhpc
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- 150000001875 compounds Chemical class 0.000 title description 2
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 92
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 20
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000004574 high-performance concrete Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 19
- 238000009415 formwork Methods 0.000 abstract 1
- 238000010422 painting Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E04B5/326—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
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- 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 ceiling-free perforating and formwork-removing-free composite hollow filling floor bearing plate and a floor slab, wherein the floor bearing plate comprises a UHPC bottom plate and a filling box; the bottom plate comprises a back surface and an exposed surface; the hanging connection assembly is embedded in the bottom plate and comprises an internal threaded pipe, a screw and a connection wing, the internal threaded pipe is exposed out of the exposed surface to form a hanging threaded hole, and the screw partially extends out of the back surface and is fixedly connected with concrete; the back of the bottom plate is fixedly connected with a filling box through a screw; the floor support plate is used as a mould-dismounting-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 filling box is arranged to reduce the dead weight, the bottom plate is arranged to improve the strength of the floor, the formwork removal is not required, the construction period is shortened, the construction efficiency is improved, the exposed surface is smooth, the secondary painting is not required, the hanging connecting assembly is arranged to enable workers to identify the hollow area through the hanging threaded hole, the operation efficiency is improved, and the cost is reduced by hanging through the hanging threaded hole.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a ceiling-free punching-free formwork-free composite hollow filling floor bearing plate and a floor slab.
Background
Along with the improvement of domestic economic level and living standard, people have more and more demands on modern buildings, floor slabs are indispensable building components in building houses, are positioned at the top of the building and are supported by supporting objects such as beams, columns and the like, in the prior art, along with the increasing of large-span concrete structures, more and more floor slabs adopt a hollow floor structure technology, a part of concrete is replaced by a light filling material without influencing the stress performance of the structure basically, in order to improve the strength of the hollow floor, a mode of increasing the thickness of the floor slab is usually adopted, but the method can cause self-weight increase, common hollow floor slabs all need to be demolded, the construction period is long, the construction efficiency is lower, the surface of the constructed floor slab is rough, the floor slab needs to be plastered again, and the hollow area of the constructed hollow floor slab is difficult to confirm, the efficiency of workers' construction can be reduced, and the hole needs to be opened again to install and connect external devices when finishing, possibly causing damage to the floor, and simultaneously, the construction cost can be improved.
In view of the above, there is a need for a ceiling-free, perforated and form-removal-free composite hollow floor slab and floor slab that solves or at least alleviates the above-mentioned drawbacks.
Disclosure of Invention
The invention mainly aims to provide a ceiling-free drilling and form-stripping-free composite hollow filling floor bearing plate and a floor slab, and aims to solve the problems that the form stripping is required in the existing floor slab construction, the surface is rough, the coating is required again, and the hollow area of a hollow floor is difficult to confirm. In order to achieve the aim, the invention provides a ceiling-free perforating and form-stripping-free composite hollow filling floor bearing plate and a floor slab, wherein the floor bearing 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 arranged oppositely, and the exposed surface is formed by demoulding after the release agent is coated on the back surface; the UHPC bottom plate is pre-embedded with a hanging connection assembly, the hanging connection assembly comprises an internal threaded pipe, a screw and a connection wing, the screw partially extends into the internal threaded pipe, the connection wing is fixedly connected to the outer wall of the hanging connection assembly, the internal threaded pipe is exposed out of the exposed surface to form a hanging threaded hole, the screw partially extends out of the back surface, and the connection wing is pre-embedded in the UHPC bottom plate; the back surface of the UHPC bottom plate is fixedly connected with the filling box through the screw; the screw rod 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 rod, a nut used for fixing the circular rib is arranged on the screw rod, and the extending rib extends out of the filling box; the floor support plate is used as a mould-disassembly-free bottom template of the hollow floor system, the filling box is buried in cast-in-place concrete of the hollow floor system, and the exposed surface of the UHPC bottom plate is used as a painting-free bottom surface of the hollow floor system.
Preferably, the filling box comprises side panels and a top panel; 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 a square body, and the UHPC bottom plate is provided with the hanging connection assembly corresponding to the middle positions of the four side walls of the filling box.
Preferably, the UHPC bottom plate is a high-performance concrete curing plate without 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-embedded in 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, the plurality of side plates are disposed in the square grooves, the back surface is divided into a groove array for accommodating the filling boxes by the cross beam and the longitudinal beam, and each groove accommodates one filling box.
Preferably, the sides of the filling box are each provided with a reinforcing rib, which are interconnected to form a mounting groove for receiving the filling box.
Preferably, two of the four side surfaces of the UHPC base plate are provided with concave splicing seams, the other two side surfaces of the UHPC base plate are provided with convex structures matched with the splicing seams, and the UHPC base plates are spliced through the splicing seams and the convex structures.
The invention also provides a hollow floor slab, which comprises the composite hollow filling floor bearing plate, cast-in-place concrete poured above the floor bearing plate and a reinforcement cage fixedly connected to the UHPC bottom plate.
Compared with the prior art, the ceiling-punching-free and form-removal-free composite hollow filling floor bearing plate and the floor slab have the following beneficial effects:
the invention provides a ceiling-free perforating and form-stripping-free composite hollow filling floor bearing plate and a floor slab, wherein the floor bearing plate comprises a UHPC bottom plate and a filling box; the bottom plate comprises back surfaces which are oppositely arranged and an exposed surface which is formed by demoulding after a release agent is coated on the back surfaces; the hanging connection assembly is embedded in the bottom plate and comprises an internal threaded pipe, a screw and a connection wing, the internal threaded pipe is exposed out of the exposed surface to form a hanging threaded hole, and the screw partially extends out of the back surface and is fixedly connected with concrete; the back of the bottom plate is fixedly connected with a filling box through a screw; the floor support plate is used as a mould-disassembly-free bottom template of the hollow floor system, 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 of the hollow floor system. According to the invention, through arranging the filling box, the dead weight can be reduced, the intensity of the floor is improved by arranging the UHPC base plate, the floor support plate is not required to be demolded, the construction period is shortened, the construction efficiency is improved, the exposed surface of the UHPC base plate is relatively flat, the UHPC base plate is not required to be painted again, the hanging connecting component is arranged, a worker can identify a hollow area through the hanging threaded hole, the operation efficiency is improved, and the cost is reduced by directly hanging through the hanging threaded hole.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a floor deck according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
fig. 3 is a second partial schematic view of a deck according to another embodiment of the present invention;
FIG. 4 is an enlarged schematic view at B of FIG. 3;
FIG. 5 is a top view of a floor deck according to one embodiment of the present invention;
fig. 6 is a schematic structural view of a floor deck according to another embodiment of the present invention;
FIG. 7 is an enlarged schematic view at C of FIG. 6;
FIG. 8 is a top view of a floor deck according to one embodiment of the present invention;
the reference numbers illustrate:
a UHPC backplane 200; a cross member 210; a stringer 220; a square groove 230; a buckle 240; a barb structure 241; a hanging connection assembly 250; a screw 251; reinforcing steel bars 252; a circular rib 253; the projecting ribs 254; a nut 255; a mounting groove 260; reinforcing ribs 261; a filling box 300; a side plate 310; a fixed base plate 311; a top plate 320; a splice seam 410; a raised structure 420.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 8, the invention provides a ceiling-free, punching-free and form-removal-free composite hollow filling floor bearing plate and a floor slab. Said floor deck comprising a UHPC floor 200 and at least one filling box 300; wherein the UHPC base plate 200 is formed by demoulding high-performance concrete in a mould coated with a mould release agent; said UHPC substrate 200 comprises oppositely disposed back surfaces (not shown) and exposed surfaces (not shown) formed by release after application of said release agent;
specifically, the floor support 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 arranged 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 smooth, the exposed surface is used as the surface of a floor slab, and the floor slab does not need to be brushed again during decoration operation.
A hanging connection assembly 250 is embedded in the UHPC base plate 200, the hanging connection assembly 250 comprises 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 out of 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 embedded in the UHPC base plate 200; said rear face of said UHPC base plate 200 is fixedly attached to said filling box 300 by said screws 251;
in detail, a 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 251 and a connection wing, the external thread of the screw 251 and the internal thread of the internal threaded pipe are arranged in a matching manner, the screw 251 partially extends into the internal threaded pipe and is fixedly connected with the internal threaded pipe, and the connection wing is fixedly connected to the outer wall of the hanging connection assembly 250, because the connection wing needs to be pre-embedded in the UHPC base plate 200, the specific position of the connection wing is arranged according to the position and actual condition of the UHPC base plate 200, and the connection wing can be fixedly connected to the outer wall of the internal threaded pipe or fixedly connected to the outer wall of the screw 251.
It should be understood that the pre-embedded hanging connection assembly 250, in which the internal thread pipe is exposed to the exposed surface to form a hanging threaded hole, is located on the exposed surface and can be seen by naked eyes after construction, so as to facilitate construction by workers, while the screw 251 partially extends out of the back surface to be connected and fixed with concrete, the screw 251 fixes the filling box 300 on the back surface of the UHPC base plate 200, and the connection wing is pre-embedded in the UHPC base plate 200 for strengthening connection and acting as a 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, a nut 255 for fixing the circular rib 253 is arranged on the screw 251, 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 steel bar 252, the filling box 300 firstly passes through the screw 251, then the reinforcing steel bar 252 is sleeved on the screw 251, the reinforcing steel bar 252 includes a circular rib 253 and two parts, namely 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, the extending rib 254 is fixedly connected with the outer edge of the circular rib 253 and extends out of the filling box 300 to be connected with a steel reinforcement cage and used for reinforcing the connection between 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, so that the structure is simple to set and strong in practicability.
The floor support plate is used as a mould-disassembly-free bottom mould plate of the hollow floor system, the filling box 300 is buried in cast-in-place concrete of the hollow floor system, and the exposed surface of the UHPC bottom plate 200 is used as a painting-free bottom surface of the hollow floor system.
Specifically, the floor support plate is used as a mould-disassembly-free bottom mould plate of the hollow floor, during construction, the filling box 300 is buried in cast-in-place concrete of the hollow floor, the exposed surface of the UHPC bottom plate 200 is used as a brushing-free bottom surface of the hollow floor, the exposed surface is formed after curing and demoulding of high-performance concrete in a mould coated with a demoulding agent, and the exposed surface is smooth and does not need to be brushed again.
It should be understood that the UHPC bottom plate 200 is arranged to increase the rigidity of the floor slab, the plastering-free exposed surface can shorten the construction period, the floor bearing plate can not only provide flexible application space, but also reduce the dead weight of the structure, has large span, can meet the requirements of multi-story and high-rise buildings with large bay and large space, improves the sound insulation effect and reduces the cost; the setting is hung coupling assembling 250 for the workman is when the fitment operation, through hanging the hollow region of screw hole discernment, need not strike the floor and just can discern hollow region as early as possible, has reduced the degree of difficulty and the fault rate of construction, improves workman's operating efficiency, and can directly hang through hanging the screw hole, can reduce the trompil and to the destruction of floor, saved the expenditure in trompil hole, the cost is reduced.
As a preferred embodiment of the present invention, the filling box 300 includes side panels 310 and a top panel 320; a plurality of said side panels 310 are fixedly attached to the back of said UHPC bottom panel 200 and said top panel 320 is fixedly attached to the free ends of a plurality of said side panels 310 to form said stuffing box 300, and a support structure (not shown) is further provided in said stuffing box 300.
In detail, the filling box 300 is made of a light filling material, which can be set according to actual requirements, for example, a metal sheet can be used, the filling 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 filling box 300; wherein, be provided with the PMKD 311 that is convenient for screw rod 251 to fix on curb plate 310, screw rod 251 will fill the case 300 and fix the back at UHPC bottom plate 200 through PMKD 311, still be provided with bearing structure in filling case 300, bearing structure's concrete structure can design according to actual conditions, sets up bearing structure and makes the stable in structure of filling case 300, and the dynamics of supporting strengthens.
In a preferred embodiment of the present invention, the filling box 300 is a square body, and the hanging connection assembly 250 is disposed on the UHPC bottom plate 200 corresponding to the middle position of the four side walls 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 as a rectangular body, the positions and the number of the hanging connection assemblies 250 can be set according to actual needs, and only workers 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 base plate 200 corresponding to the filling box 300, because the hanging connection assemblies 250 are pre-embedded, the positions of the filling box 300 can be accurately positioned, when the filling box 300 is installed, the filling box 300 can be quickly installed, so that 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 base plate 200, the identification can be performed through the hanging threaded holes, and the floor slab does not need to be knocked, meanwhile, the hanging is directly carried out through the hanging threaded hole, the expenditure of the hole opening is saved, and the cost is saved; in addition, the hanging connection assembly 250 is disposed in the middle of four sidewalls of the stuffing box 300, so that the stuffing box 300 is well fixed to the rear surface of the UHPC base plate 200, and the stability of the stuffing box 300 fixed to the rear surface is maintained.
Further, the UHPC base plate 200 is a high-performance concrete curing plate without steel bars, and an insulating layer (not shown) is further disposed in the UHPC base plate 200.
. It should be understood that the UHPC floor 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, improve the casting safety performance, and meanwhile, does not need to use reinforcing steel bars, thereby saving the working procedures; in addition, the UHPC bottom plate 200 is also provided with a heat-insulating layer, and the performance can be improved by the heat-insulating layer, so that the effects of fire prevention, heat insulation, water resistance, moisture resistance and the like are achieved.
In a preferred embodiment of the present invention, the UHPC base plate 200 is square, and the rear surface of the UHPC base plate 200 is provided with a cross beam 210 and a longitudinal beam 220 that are perpendicular to each other. In detail, the UHPC base plate 200 is formed in a square shape to facilitate connection of the stuffing boxes 300, and the cross beams 210 and the longitudinal beams 220 perpendicular to each other are additionally arranged on the back surface of the UHPC base plate 200, so that the weight transmitted from the floor slab can be borne, the integrity of the structure is enhanced, and the stress and deformation of the whole structure are coordinated.
In a preferred embodiment of the present invention, the cross member 210 and the longitudinal member 220 form a square groove 230, a plurality of side plates 310 are disposed in the square groove 230, the cross member 210 and the longitudinal member 220 divide the rear surface into a groove array (not shown) for accommodating the filling boxes 300, and each groove accommodates one filling box 300.
Specifically, add crossbeam 210 and the longeron 220 mutually perpendicular who establishes, square groove 230 has been formed, and square groove 230's size can set up according to actual need, adjust the interval between crossbeam 210 and the longeron 220 and can set up the size of recess promptly, set up a plurality of crossbeams 210 and longeron 220 and formed the groove array who holds packing box 300, every recess holds a packing box 300, can fix a position the position of packing box 300 in advance, the work efficiency of fixed connection packing box 300 has been improved greatly.
Furthermore, a buckle 240 is pre-embedded on the longitudinal beam 220 of the cross beam or 210, the buckle 240 partially protrudes out of the back surface, and a barb structure 241 is formed at a free end of the buckle 240. 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 designed with an inverted hook structure 241 so as to be connected with other components; the specific installation position of the buckle 240 can be set according to actual conditions, and 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 and the reinforcement cage can be strengthened.
Further, the sides of the filling box 300 are each provided with a reinforcing rib 261, and the reinforcing ribs 261 are connected to each other to form a mounting groove 260 to receive the filling box 300. It should be understood that the present embodiment is further provided with reinforcing ribs 261 at the sides of the stuffing box 300, the reinforcing ribs 261 are connected to each other to form the mounting groove 260 for accommodating the stuffing box 300, so that the mounting groove 260 can facilitate the fixing of the mounting groove 260 and restrict the movement of the stuffing box 300, and the mounting groove 260 not only can increase the strength but also can strengthen the connection of the bottom plate with the concrete.
As a preferred embodiment of the present invention, two of the four side surfaces of the UHPC base plate 200 are provided with concave splicing seams 410, the other two side surfaces are provided with convex structures 420 matching with the splicing seams 410, and a plurality of UHPC base plates 200 are spliced by the splicing seams 410 and the convex structures 420.
In detail, in this embodiment, two sides of four sides of the UHPC bottom plate 200 are provided with the concave splicing seams 410, the other two sides are provided with the convex structures 420 matched with the splicing seams 410, and a plurality of UHPC bottom plates 200 can be spliced by the splicing seams 410 and the convex structures 420, so that the size of the floor bearing plate which is actually required can be designed, and the design is simple and has practicability.
The invention also provides a hollow floor (not shown) which comprises the composite hollow filling floor deck as described above, cast-in-place concrete (not shown) poured above the floor deck, and a reinforcement cage (not shown) fixedly connected to the UHPC bottom plate 200. It should be noted that the floor bearing plate is fixedly connected with the reinforcement cage, concrete is poured on the floor bearing plate, a hollow floor is formed, the reinforcement cage can be connected through the buckle 240 arranged on the UHPC base plate 200, the buckle 240 is arranged to be pre-embedded in the UHPC base plate 200 and integrated with the UHPC base plate 200, and the buckle 240 is connected with the reinforcement cage, so that the connection is firm and reliable.
Briefly describing the principle of the embodiment, during construction, according to the UHPC base plate 200, a base plate mold with a thickness less than 20 cm can be manufactured, a mold release agent is coated on the bottom, the hanging connection assembly 250 is pre-embedded at a preset position, the base plate is poured and formed, the hanging connection assembly 250 and the UHPC base plate 200 are integrated into a whole, the UHPC base plate 200 is formed after demolding, a hanging threaded hole is formed on the exposed surface of the UHPC base plate 200 by an internal threaded pipe for identifying a hollow area and hanging other components, a screw 251 extends out of the back surface of the UHPC base plate 200, the filling box 300 is fixed on the UHPC base plate 200 by the screw 251 to obtain a composite hollow filling floor support plate which is free of ceiling punching and mold removal, the 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 can also be fixedly connected with a buckle 240 on the UHPC base plate 200, and concrete is poured and formed, the reinforcing steel bars 252 can reinforce the connection between the bottom plate and the concrete, the hollow floor slab can be obtained after demolding, due to the fact that the demolding agent is coated, the exposed surface of the UHPC bottom plate 200 is smooth, namely the surface of the floor bearing plate is not required to be painted for the second time, the process of demolding is omitted, the construction period is shortened, and the construction efficiency is improved; the floor bearing plate can provide a flexible application space, can reduce the self weight of the structure, has large span, can meet the requirements of a multi-story high-rise building with a large bay and a large space, improves the sound insulation effect and reduces the cost; simultaneously, the connection component 250 is hung in the setting for the workman is when the fitment operation, through hanging the hollow region of screw hole discernment, need not strike the floor and just can discern the hollow region as early as possible, has reduced the degree of difficulty and the fault rate of construction, improves workman's operating efficiency, and can directly hang through hanging the screw hole, has saved the expenditure in trompil hole, the cost is reduced.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A ceiling-free drilling and form-removal-free composite hollow filling floor bearing 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 arranged oppositely, and the exposed surface is formed by demoulding after the release agent is coated on the back surface;
the UHPC bottom plate is pre-embedded with a hanging connection assembly, the hanging connection assembly comprises an internal threaded pipe, a screw and a connection wing, the screw partially extends into the internal threaded pipe, the connection wing is fixedly connected to the outer wall of the hanging connection assembly, the internal threaded pipe is exposed out of the exposed surface to form a hanging threaded hole, the screw partially extends out of the back surface, and the connection wing is pre-embedded in the UHPC bottom plate;
the back surface of the UHPC bottom plate is fixedly connected with the filling box through the screw;
the screw rod 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 rod, a nut used for fixing the circular rib is arranged on the screw rod, and the extending rib extends out of the filling box;
the floor support plate is used as a mould-disassembly-free bottom template of the hollow floor system, the filling box is buried in cast-in-place concrete of the hollow floor system, and the exposed surface of the UHPC bottom plate is used as a painting-free bottom surface of the hollow floor system.
2. The ceiling-free perforating and form-stripping-free composite hollow filling floor support plate according to claim 1, characterized in that: 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 perforating and form-stripping-free composite hollow filling floor support plate according to claim 1, characterized in that: the filling box is a square body, and the UHPC bottom plate is provided with the hanging connecting component corresponding to the middle positions of the four side walls of the filling box.
4. The ceiling-free perforating and form-stripping-free composite hollow filling floor support plate according to claim 1, characterized in that: the UHPC bottom plate is a high-performance concrete curing plate without steel bars, and an insulating layer is further arranged in the UHPC bottom plate.
5. The ceiling-free perforating and form-stripping-free composite hollow filling floor deck as claimed in claim 1, wherein the UHPC bottom plate is square, and the back surface of the UHPC bottom plate is convexly provided with cross beams and longitudinal beams which are perpendicular to each other.
6. The ceiling-free perforating and form-stripping-free composite hollow filling floor bearing plate as claimed in claim 5, wherein buckles are pre-embedded on the cross beams or the longitudinal beams, the buckles partially protrude out of the back surface, and free ends of the buckles are formed with barb structures.
7. The ceiling-perforation-and-demolding-free composite hollow filled floor deck according to claim 5, wherein the cross beams and the longitudinal beams are formed with square grooves, a plurality of the side plates are disposed in the square grooves, the cross beams and the longitudinal beams divide the back surface into an array of grooves for accommodating the filling boxes, and each groove accommodates one filling box.
8. The composite hollow filler floor deck free of ceiling perforation and removal of molds as claimed in claim 5, wherein the side edges of the filler boxes are each provided with reinforcing ribs that interconnect to form mounting slots to receive the filler boxes.
9. The ceiling-perforation-free and form-removal-free composite hollow filling floor deck according to claim 5, wherein two of the four side surfaces of the UHPC bottom boards are provided with concave splicing seams, the other two side surfaces of the UHPC bottom boards are provided with convex structures matched with the splicing seams, and a plurality of the UHPC bottom boards are spliced through the splicing seams and the convex structures.
10. A hollow floor slab comprising a composite hollow-filled floor deck according to any one of claims 1 to 9, cast in place concrete poured over said deck, and a reinforcement cage fixedly attached to said UHPC floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN114382212A true CN114382212A (en) | 2022-04-22 |
| CN114382212B CN114382212B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN208486558U (en) * | 2018-06-14 | 2019-02-12 | 河南瑞新新型建筑材料有限公司 | Prevent the macromolecule composite core formwork of dislocation |
| CN109339323A (en) * | 2018-10-22 | 2019-02-15 | 中国十七冶集团有限公司 | A kind of assembled integral hollow floor structure system and its construction method |
| 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 |
| CN206844444U (en) * | 2017-06-12 | 2018-01-05 | 陕西建研结构工程股份有限公司 | A kind of steel bar girder concrete hollow building roof based on non-dismantling formwork |
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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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| CN114382212B (en) | 2024-01-30 |
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