CN113565247A - Disassembly-free bottom die truss floor bearing plate and manufacturing method - Google Patents
Disassembly-free bottom die truss floor bearing plate and manufacturing method Download PDFInfo
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- CN113565247A CN113565247A CN202110921411.4A CN202110921411A CN113565247A CN 113565247 A CN113565247 A CN 113565247A CN 202110921411 A CN202110921411 A CN 202110921411A CN 113565247 A CN113565247 A CN 113565247A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00939—Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
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- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
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- Organic Chemistry (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The embodiment of the invention relates to a disassembly-free bottom die truss floor support plate and a manufacturing method thereof. The method comprises the following steps: the device comprises a bottom die, a plurality of connecting assemblies and a plurality of trusses; the bottom die comprises a bottom plate with a preset thickness and a plurality of mutually parallel plate ribs arranged on the upper surface of the bottom plate along a first direction; the connecting components are arranged on the bottom plate at certain intervals and along the second direction, each connecting component comprises a plurality of connecting bases arranged along the second direction and first connecting pieces arranged on the plurality of connecting bases, and the connecting bases are partially arranged in the bottom plate and partially protrude out of the top surface of the bottom plate by a preset distance; the trusses are parallel to each other, arranged on the plate ribs along the first direction, perpendicular to the first connecting piece and fixed on the first connecting piece. According to the floor support plate and the manufacturing method, the truss can be firmly fixed on the bottom die through the connecting assembly, manual steel bar binding is not needed on the construction site, and the bottom die is not needed to be dismounted, so that the engineering quality is improved, and the construction progress of a project is accelerated.
Description
Technical Field
The embodiment of the invention relates to the technical field of buildings, in particular to a disassembly-free bottom die truss floor bearing plate and a manufacturing method thereof.
Background
The building industry is developing vigorously, and with the increase of the population in the world nowadays, the land resources are decreasing day by day. Because of the increase of the cost of land yielding and the continuous rise of labor cost according to labor payment, the consciousness of energy conservation and environmental protection requirements is gradually improved, the competition pressure of the building industry is increased, and the building construction also gradually seeks development space towards the sky. Along with the increasing height of buildings, steel structures are commonly applied to high-rise buildings due to the advantages of light dead weight and high strength. The steel structure building is continuously developed, and the construction method of the cast-in-place plate in the traditional project is difficult to keep up with the construction speed of the steel structure adopted by the building main body, so that the overall construction progress of the project is influenced.
The construction of watering the board on spot needs to build auxiliary facilities such as template and scaffold frame, and project site reinforcement work volume is huge, leads to the construction flow totality to be disjointed, hardly follows up the construction speed that the building subject adopted the steel construction to influenced the construction progress of totality, and need demolish the bottom template after the project is accomplished and lead to the construction progress slow, it is huge to pollute. If the bottom plate needs the later stage to carry out fire prevention anticorrosive maintenance for profiled sheet, the bottom plate leaks thick liquid when can lead to pouring if there is the solder joint to weld and wear.
Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.
It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a removal-free bottom mold truss floor support plate and a method for manufacturing the same, which overcome one or more of the problems due to the limitations and disadvantages of the related art, at least to a certain extent.
According to a first aspect of the embodiments of the present invention, there is provided a disassembly-free bottom die truss floor deck, including:
the bottom die comprises a bottom plate with a preset thickness and a plurality of mutually parallel plate ribs arranged on the upper surface of the bottom plate along a first direction;
the connecting component comprises a plurality of connecting bases arranged along the second direction and a first connecting piece arranged on the plurality of connecting bases, the connecting bases are partially arranged in the bottom plate and partially protrude out of the upper surface of the plate rib for a preset distance, and the first connecting piece is connected with the protruding part of the connecting bases;
the trusses are parallel to each other, arranged on the plate ribs along a first direction, perpendicular to the first connecting piece and fixed on the first connecting piece.
In an embodiment of the present invention, the connection base includes a second connection member and a third connection member, the second connection member is disposed in the bottom plate under the plate rib in parallel with the bottom plate, the third connection member is perpendicular to the bottom plate, one end of the third connection member is disposed on the second connection member, and the other end of the third connection member protrudes from the upper surface of the plate rib by a predetermined distance and is fixedly connected to the first connection member.
In an embodiment of the invention, the truss comprises an upper chord member, a lower chord member, web members and a T-shaped connecting structure;
the upper chord and the lower chord form a triangular prism structure, and the lower chord is close to two edges of the bottom die and is fixed with the first connecting piece; the web members are of a wave-shaped structure, wave crests of the web members are connected with the upper chord members, and wave troughs of the web members are connected with the lower chord members; the two ends of the cross rod of the T-shaped connecting structure are connected with the lower chord, and the free end of the vertical rod is connected with the upper chord.
In one embodiment of the invention, the bottom die is a composite bottom die, and the composite material comprises the following basic components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.
In one embodiment of the invention, the base plate has a thickness of 4mm-30mm, a width of 600mm-4200mm and a length of 1000mm-12000mm, and the plate rib has a thickness of 10mm-30mm and a width of 20mm-40 mm.
In an embodiment of the invention, the distance between the plurality of plate ribs is 200mm-400mm, and the distance between the plurality of first connecting pieces is 400mm-800 mm.
In an embodiment of the invention, the thickness of the bottom plate is 5mm-10 mm.
In an embodiment of the present invention, the second connecting member is a straight-line structure, a cross-shaped structure or a mesh structure, and when the second connecting member is a cross-shaped structure or a mesh structure, one end of the third connecting member is disposed at an intersection of the cross-shaped structure or the mesh structure.
In an embodiment of the invention, the second connecting piece and the third connecting piece, the third connecting piece and the first connecting piece, and the first connecting piece and the truss are connected by a welding mode or a clamping mode, wherein the welding mode is at least one of flash butt welding, arc welding, electroslag pressure welding, resistance spot welding and steel bar gas pressure welding.
According to a first aspect of the embodiments of the present invention, there is provided a method for manufacturing a bottom die truss floor support plate without dismantling, including:
preparing a composite material by using sand, fly ash, cement, silica fume, water and fiber;
the bottom die is manufactured by utilizing the composite material, and is manufactured by adopting a copying method, a pulp flowing method, a vacuum extrusion molding process or a formwork-erecting cast-in-place process, the bottom die comprises a bottom plate and a plurality of mutually parallel plate ribs arranged on the upper surface of the bottom plate along a first direction, the thickness of the bottom plate is 4-30 mm, the width of the bottom plate is 600-4200 mm, the length of the bottom plate is 1000-12000 mm, and the thickness of the plate ribs is 10-30 mm and the width of the plate ribs is 20-40 mm;
manufacturing a plurality of connecting assemblies, wherein each connecting assembly comprises a plurality of connecting bases and first connecting pieces connected with the plurality of connecting bases;
the connecting component is embedded or inserted backwards, and the connecting base is partially embedded or inserted backwards in the bottom die, so that the connecting base protrudes out of the upper surface of the bottom die by a preset distance;
manufacturing a truss, wherein the truss comprises an upper chord member, a lower chord member and a web member;
when the bottom die reaches preset strength, the truss is connected with the connecting assembly to form a floor support plate.
In one embodiment of the invention, the bottom die is a composite bottom die, and the composite material comprises the following basic components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.
In an embodiment of the present invention, the connection base includes a second connection member and a third connection member, the second connection member is disposed in the bottom plate under the plate rib in parallel with the bottom plate, the third connection member is perpendicular to the bottom plate, one end of the third connection member is disposed on the second connection member, and the other end of the third connection member protrudes out of the upper surface of the plate rib by a predetermined distance and is fixedly connected to the first connection member; the second connecting piece is a straight line, a cross and a net structure, and when the second connecting piece is the cross or the net structure, one end of the third connecting piece is arranged on the intersection point of the cross or the net structure.
In an embodiment of the present invention, a process of connecting the truss and the connecting assembly is as follows: and connecting the truss to the first connecting piece along the direction vertical to the first connecting piece.
In an embodiment of the present invention, the method further includes: and before the bottom die reaches the preset strength, the thickness of the composite material bottom plate is made to be 5-10 mm.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
according to the disassembly-free bottom die truss floor bearing plate and the manufacturing method thereof, the truss can be firmly fixed on the bottom die through the connecting assembly, on one hand, manual steel bar binding is not needed in a construction site, construction time and labor cost are saved, on the other hand, welding is not needed on the bottom die, the problem of later pouring slurry leakage caused by welding and transmission of bottom die welding spots is avoided, meanwhile, disassembly of the bottom die is not needed, engineering quality is improved, construction progress of a project is accelerated, on the other hand, the disassembly-free bottom die can be directly plastered and finished, a ceiling is not needed, crack resistance is high, cracks are not prone to being generated in a transportation process, and yield is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic perspective view illustrating a bottom die truss floor deck without dismantling in an exemplary embodiment of the invention;
FIG. 2 is a schematic top view of a bottom die truss deck according to an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic side view of a demolition-free bottom die truss floor deck according to an exemplary embodiment of the invention;
FIG. 4 illustrates a schematic view of a truss structure in an exemplary embodiment of the invention;
fig. 5 is a schematic flow chart illustrating a method for manufacturing a bottom die removal-free truss floor deck according to an exemplary embodiment of the invention.
The connecting structure comprises a base plate 101, a plate rib 102, a second connecting piece 103, a third connecting piece 104, a first connecting piece 105, an upper chord 201, a lower chord 202, a web 203 and a T-shaped connecting structure 204.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In the present exemplary embodiment, a disassembly-free bottom die truss floor deck is first provided. Referring to fig. 1, the detachment-free bottom die truss floor deck may include: the device comprises a bottom die, a plurality of connecting assemblies and a plurality of trusses; the bottom die comprises a bottom plate 101 with a preset thickness and a plurality of mutually parallel plate ribs 102 arranged on the upper surface of the bottom plate 101 along a first direction; the connecting assemblies are arranged on the bottom plate 101 at certain intervals along a second direction, each connecting assembly comprises a plurality of connecting bases arranged along the second direction and first connecting pieces 105 arranged on the plurality of connecting bases, the connecting bases are partially arranged in the bottom plate 101 and partially protrude out of the upper surfaces of the plate ribs 102 by preset distances, and the first connecting pieces 105 are connected with protruding parts of the connecting bases; the trusses are parallel to each other and disposed on the plate rib 102 along a first direction, perpendicular to the first connecting member 105, and fixed to the first connecting member 105.
Specifically, the disassembly-free truss floor support plate is composed of three parts: the device comprises a bottom die, a plurality of connecting assemblies and a plurality of trusses; the bottom die comprises a bottom plate 101 and a plate rib 102, the bottom plate 101 and the plate rib 102 can be integrally formed, mechanical extrusion forming or pouring forming can be specifically achieved, a plurality of connecting assemblies are arranged on the bottom plate 101 along a second direction at preset intervals, a plurality of trusses are arranged on a first connecting piece 105 of each connecting assembly in parallel along a first direction and are perpendicular to the first connecting piece 105, therefore, the connecting assemblies and the trusses are vertically arranged on the bottom die, corresponding acting forces are exerted on the first direction and the second direction of a floor bearing plate, the rigidity of the floor bearing plate in the two directions is improved, the bearing force of the floor bearing plate is improved, the risks of cracking and deformation are reduced, and the rigidity of the bottom die in the first direction can be further improved due to the arrangement of the plate rib 102. Meanwhile, during construction, the plurality of floor bearing plates can be positioned and aligned through the first connecting piece 105 and the plate rib 102 at the edge of the bottom plate 101, the convenience and the rapidness are improved, the plate rib 102 at the edge of the bottom plate 101 and the connecting base below the plate rib 102 can be used for connecting and fixing two ends of the first connecting piece 105, and the micro-deformation of two ends of the first connecting piece 105 is improved to a certain extent. The connecting component and the truss may be made of steel, alloy or other materials, and are not specifically limited herein, the first connecting component 105 may be a rod with a circular section, a rod with a rectangular section or a rod with another section, the diameter of the inner circle of the cross section may be 4.5mm to 20mm, and the preset distance of the connecting base protruding the upper surface of the plate rib 102 is 3mm to 15 mm.
Above-mentioned exempt from to tear open die block truss floor carrier plate, can be comparatively firm fixing the truss on the die block through coupling assembling, on the one hand need not carry out artifical reinforcement at the job site, construction time and human cost have been practiced thrift, on the other hand, need not weld on the die block, the later stage that the die block solder joint passed and caused has been avoided pour the hourglass thick liquid problem, also need not carry out demolising of die block simultaneously, the engineering quality is improved and the construction progress of project has been accelerated, secondly, exempt from to tear open the die block and can directly plaster the fitment, it is strong to need not to carry out furred ceiling and anti-crack performance, be difficult for producing the crackle in the transportation, the yield is high.
The connection structure of the bottom die and the connection assembly is subjected to a drawing test, and the result is shown in table 1.
TABLE 1 destructive load that the bottom die design thickness can withstand
Next, the parts of the above-mentioned demolition-free bottom die steel truss floor deck according to the present exemplary embodiment will be described in more detail with reference to fig. 1 to 5.
In one embodiment, the connection base includes a second connection member 103 and a third connection member 104, the second connection member 103 is disposed in the bottom plate 101 below the plate rib 102 in parallel with the bottom plate 101, and the third connection member 104 is perpendicular to the bottom plate 101, and one end of the third connection member is disposed on the second connection member 103, and the other end of the third connection member protrudes a predetermined distance above the upper surface of the plate rib 102 and is fixedly connected to the first connection member. Specifically, second connecting piece 103 sets up in the die block inside apart from the die block bottom surface 2mm-15mm department, has improved the rigidity of die block on the one hand, and on the other hand makes the third connecting piece 104 of connection on second connecting piece 103 difficult for pulling out, makes connection base's fastness and stability better, thereby makes the first connecting piece 105 of connection on the base connect more with firm, third connecting piece 104 can be made for steel, alloy or other materials, and the circle diameter can be 4.5mm-8mm in its cross section.
In one embodiment, the truss includes an upper chord 201, a lower chord 202, web members 203, and T-shaped connecting structures 204; the upper chord 201 and the lower chord 202 form a triangular prism structure, and the lower chord 202 is close to two edges of the bottom die and is fixed with the first connecting piece 105; the web member 203 is of a wave-shaped structure, the wave crest of the web member 203 is connected with the upper chord 201, and the wave trough is connected with the lower chord 202; two ends of a cross rod of the T-shaped connecting structure 204 are connected with the lower chord 202, and the free end of a vertical rod is connected with the upper chord 201. Specifically, the truss is a triangular prism-shaped structure and is stable relative to other shapes, meanwhile, the wave crests and the wave troughs of the web members 203 and the shapes formed by the upper chords 201 and the lower chords 202 can be triangular, the triangular shape is more stable and not easy to deform relative to other shapes, so that the truss has better pressure bearing capacity, the T-shaped connecting structures 204 are arranged at two ends of the truss, and the floor support plates can be connected through the T-shaped connecting structures 204 when being connected; the truss is fixed with the first connecting piece 105 through the lower chord 202, and the connection mode is stressed more directly and is connected more firmly compared with the mode that the web members 203 are fixed with the first connecting piece 105. The dimensional parameters of the truss and the dimensional parameters of the upper chord 201, the lower chord 202, the web members 203 and the T-shaped connecting structure 204 are related to the material of the truss, the size of the bottom die and the construction requirements.
In one embodiment, the bottom mold is a composite bottom mold 101, and the composite material comprises the following basic components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres. Specifically, the composite material is used as the bottom die of the floor support plate, under the same geometric dimension and load condition, the composite material of the material has higher strength, larger ductility, very strong energy absorption capacity and crack control capacity, strong durability, and can greatly reduce the thickness of the floor support plate on the basis of ensuring the bearing capacity of the floor support plate, thereby reducing the weight of the floor support plate, on one hand, the larger clear height can be provided for a house by reducing the thickness, and on the other hand, the transportation efficiency and the construction speed of the floor support plate can be improved to a certain extent by reducing the weight; and the composite material also has better fireproof performance, and the fireproof safety of the building is improved.
In one embodiment, the thickness of the bottom plate 101 is 4mm-30mm, the width is 600mm-4200mm, the length is 1000mm-12000mm, the thickness of the plate rib 102 is 10mm-30mm, and the width is 20mm-40 mm. Specifically, by using the composite material bottom die, the thickness of the bottom plate 101 is kept between 4mm and 30mm under the condition of the plate ribs 102, so that the universal engineering requirements can be met, in the prior art, the thickness of the bottom die of the floor support plate made of other materials is generally required to be at least ensured to be more than 60mm so that the bearing requirements can be met, and the thickness and the weight are greatly increased.
In one embodiment, the plurality of plate ribs 102 are spaced apart by 200mm to 400mm, and the plurality of first connectors 105 are spaced apart by 400mm to 800 mm. Specifically, the distance between the rib plates determines the distance between the third connecting pieces 104, which plays a certain role in determining the connection stability of the first connecting pieces 105, and if the distance is too large, the connection stability of the first connecting pieces 105 is reduced, and if the distance is too small, the material is wasted and the bearing of the floor deck is increased; the distance between the first connecting members 105 is decisive for the stability of the truss connection, and if the distance is too large, the stability of the truss connection is reduced, and if the distance is too small, the material is wasted and the bearing of the floor deck is increased.
In one embodiment, the upper surface of the base plate 101 is roughened. Specifically, the upper surface of the bottom plate 101 is roughened, so that the bonding capability between the bottom plate 101 and the subsequently poured concrete can be improved, the bonding is firmer, and the layered cracking is not easy to occur.
In one embodiment, the base plate 101 is 5mm to 10mm thick. Specifically, the bottom plate 101 has an optimal thickness of 5mm to 10mm, which is a thinner thickness range in the case of meeting the engineering load-bearing requirements.
In one embodiment, the upper chord 201 and/or the lower chord 202 of the truss may be steel bars or tubes. Specifically, the upper chord 201 and/or the lower chord 202 of the truss may be steel bars or steel pipes, the steel pipes have better bearing capacity relative to the steel bars, and whether the steel bars are used for the upper chord 201 and the lower chord 202 or the steel pipes may be selected according to engineering requirements, for example, when the upper chord 201 and the lower chord 202 are the steel bars, the diameter thereof is 6mm to 22mm, and when the web members 203 are the steel bars, the diameter thereof is 4mm to 12 mm.
In one embodiment, the second connection member 103 may have a straight shape, a cross shape, and a mesh structure, and when the second connection member 103 has a cross shape or a mesh structure, one end of the third connection member 104 is disposed at an intersection of the cross shape or the mesh structure. Specifically, the second connecting member 103 may be made of steel, alloy, or other materials, which is not specifically limited herein; when the second connecting member 103 is in a straight shape, the inner circle diameter of the cross section of the material can be 4.5mm-8mm, when the second connecting member 103 is in a cross-shaped or net-shaped structure, the inner circle diameter of the cross section of the material forming the cross-shaped or net-shaped structure can be 1mm-4mm, and the second connecting member 103 in the cross-shaped or net-shaped structure can improve the crack resistance of the bottom die while saving the material.
In one embodiment, the second connector 103 and the third connector 104, the third connector 104 and the first connector 105, and the first connector 105 and the truss are connected by welding and/or clamping, and the welding is at least one of flash butt welding, arc welding, electroslag pressure welding, resistance spot welding, and steel bar gas pressure welding. Specifically, the second connecting member 103 and the third connecting member 104, the third connecting member 104 and the first connecting member 105, and the first connecting member 105 and the truss may be connected by a welding method or a clamping method, or may be welded on the basis of the clamping connection to increase the connection firmness, or may be connected by other connecting methods, which is not limited specifically herein. The welding is a processing mode that two or more than two metals of the same kind or different kinds are combined and diffused by atoms by heating, pressurizing or a method of combining the heating and pressurizing or filling the heating and pressurizing with or without filling welding materials, so as to achieve a structure connected into a whole, and the welding device has the advantages of good connection performance, large rigidity of a welding structure, good integrity and the like, has wide application range of flash butt welding, and can weld all metal materials which can be cast by using flash butt welding in principle; the arc welding is that electric arc is used as a heat source, and the physical phenomenon of air discharge is utilized to convert electric energy into heat energy and mechanical energy required by welding, so that the aim of connecting metal is fulfilled; electroslag pressure welding is a pressure welding method which is completed by placing two steel bars into a vertical or oblique (the inclination is in the range of 4: 1) butt joint mode, forming an electric arc process and an electroslag process under a welding flux layer by utilizing welding current to pass through a gap between the two steel bars, generating electric arc heat and resistance heat, melting the steel bars and pressurizing; the resistance spot welding utilizes a spot welding machine to weld crossed reinforcing steel bars, and can be formed into a steel wire mesh or a framework to replace manual binding; the steel bar gas pressure welding adopts oxyacetylene flame to heat the butt joint of two steel bars, so that the steel bars reach a plastic state or a molten state, and then the steel bars are pressurized to finish the pressure welding method; the welding method has the advantages that one welding method can be selected for use in the manufacturing process of the bottom die truss floor support plate without dismantling, and a plurality of welding methods can be selected for use according to the characteristics and advantages of the bottom die truss floor support plate without dismantling, and the method is not particularly limited.
According to a second aspect of the embodiments of the present invention, there is provided a method for manufacturing a non-dismantling bottom die 101 truss floor deck, which can be used for manufacturing a buckling plate in any of the above embodiments, and the method may include:
step S101: preparing a composite material by using sand, fly ash, cement, silica fume, water and fiber;
step S102: the bottom die is manufactured by utilizing the composite material, and is manufactured by adopting a copying method, a pulp flowing method, a vacuum extrusion molding process or a formwork-erecting cast-in-place process, the bottom die comprises a bottom plate 101 and a plurality of mutually parallel plate ribs 102 arranged on the upper surface of the bottom plate 101 along a first direction, the thickness of the bottom plate 101 is 4-30 mm, the width of the bottom plate 101 is 600-4200 mm, the length of the bottom plate is 1000-12000 mm, the thickness of the plate ribs 102 is 10-30 mm, and the width of the plate ribs is 20-40 mm;
step S103: making a plurality of connection assemblies including a plurality of connection bases and a first connection member 105 connected to the plurality of connection bases;
step S104: the connecting component is embedded or inserted backwards, and the connecting base is partially embedded or inserted backwards in the bottom die, so that the connecting base protrudes out of the upper surface of the plate rib 102 by a preset distance;
step S105: manufacturing a truss, wherein the truss comprises an upper chord member, a lower chord member and a web member;
step S106: when the bottom die reaches preset strength, the truss is connected with the connecting assembly to form a floor support plate.
When the bottom die adopts a formwork support cast-in-place process, the bottom die is firstly manufactured according to a preset size, then the connecting assembly is positioned and embedded in the prefabricated bottom die according to the design, then high-ductility concrete is poured according to the design thickness, and finally the bottom die is maintained. Wherein coupling assembling also can be behind high ductility concrete placement, before the initial set, insert in the die block after fixing a position according to the design. Specifically, by using the composite material bottom die, the thickness of the bottom plate 101 is kept between 4mm and 30mm under the condition of the plate ribs 102, so that the universal engineering requirements can be met, the optimal thickness is between 5mm and 10mm, in the prior art, the thickness of the bottom die of the floor support plate made of other materials is generally required to be at least ensured to be more than 60mm, so that the bearing requirements can be met, and the thickness and the weight are greatly increased.
In one embodiment, the composite material comprises the following base components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.
In one embodiment, the connection base comprises a second connection member 103 and a third connection member 104, the second connection member 103 is arranged in the bottom plate under the plate rib in parallel with the bottom plate, the third connection member 104 is perpendicular to the bottom plate, one end of the third connection member is arranged on the second connection member 103, and the other end of the third connection member protrudes out of the upper surface of the plate rib by a preset distance and is fixedly connected with the first connection member 105; the second connecting piece 103 can be a straight line, a cross and a mesh structure, and when the second connecting piece 103 is a cross or a mesh structure, one end of the third connecting piece 104 is arranged on the intersection point of the cross or the mesh structure.
In one embodiment, the process of connecting the truss to the connection assembly is: the truss is attached to the first connector 105 in a direction perpendicular to the first connector 105.
In one embodiment, further comprising: and performing galling treatment on the upper surface of the bottom die 101 before the bottom die reaches the preset strength. Specifically, the roughening treatment is performed on the upper surface of the bottom plate 101, so that the bonding capability between the bottom die and the subsequently poured concrete can be improved, the bonding is firmer, and the layered cracking is not easy to occur.
Above-mentioned exempt from to tear open die block truss floor carrier plate manufacturing method, can be comparatively firm the fixing on the die block with the truss through coupling assembling, on the one hand need not carry out artifical reinforcement at the job site, engineering time and human cost have been practiced thrift, on the other hand, need not weld on the die block, the later stage that the die block solder joint passed and caused is pour the hourglass thick liquid problem, also need not carry out demolising of die block simultaneously, engineering quality is improved and the construction progress of project has been accelerated, secondly, exempt from to tear open the die block and can directly plaster the fitment, it is strong to need not to carry out furred ceiling and anti-cracking performance, be difficult for producing the crackle in the transportation, the yield is high.
In the above embodiments, the values of the compressive strength, the flexural strength, the equivalent bending toughness, the tensile strength, the ultimate tensile strain, and the like of the bottom plate 101 are tested according to the relevant regulations of the existing national standards "test method for physical and mechanical properties of concrete" GB/T50081, "test method for cement mortar strength (ISO method)" GB/T17671, and JCT2461-2018 "test method for mechanical properties of high-ductility fiber-reinforced cement-based composite material". The test piece forming and maintaining method refers to relevant regulations of the current national standard GB/T50081 of concrete physical and mechanical property test method Standard. The mechanical property test data of the base plate 101 of the present application obtained according to the above test method are shown in table 2 below:
TABLE 228 d mechanical Properties Experimental data
The above experimental data show that:
1. the compressive strength of the bottom plate made of the composite material is basically equivalent to that of C50 concrete, and the bottom plate has high-strength compressive property;
2. the flexural strength is greater than 13MPa of the R3 strength grade cement fiberboard;
3. the indexes of equivalent bending strength and equivalent bending toughness fully show that the high-ductility composite material has good ductility indexes;
4. the tensile strength is 2-3 times of 2.64MPa of the tensile strength of C50 concrete, and the ultimate tensile strain is more than 200 times of the ultimate tensile strain of ordinary concrete, so that the concrete has very good tensile deformability.
It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, and are used merely for convenience in describing embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used 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 one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (14)
1. The utility model provides an exempt from to tear open die block truss floor carrier plate which characterized in that includes:
the bottom die comprises a bottom plate with a preset thickness and a plurality of mutually parallel plate ribs arranged on the upper surface of the bottom plate along a first direction;
the connecting component comprises a plurality of connecting bases arranged along the second direction and a first connecting piece arranged on the plurality of connecting bases, the connecting bases are partially arranged in the bottom plate and partially protrude out of the upper surface of the plate rib for a preset distance, and the first connecting piece is connected with the protruding part of the connecting bases;
the trusses are parallel to each other, arranged on the plate ribs along a first direction, perpendicular to the first connecting piece and fixed on the first connecting piece.
2. The disassembly-free bottom die truss floor support plate as claimed in claim 1, wherein the connection base comprises a second connection member and a third connection member, the second connection member is parallel to the bottom plate and disposed in the bottom plate below the rib, the third connection member is perpendicular to the bottom plate, one end of the third connection member is disposed on the second connection member, and the other end of the third connection member protrudes out of the upper surface of the rib by a predetermined distance and is fixedly connected with the first connection member.
3. The disassembly-free bottom die truss floor deck according to claim 2, wherein the truss comprises an upper chord, a lower chord, a web member and a T-shaped connecting structure;
the upper chord and the lower chord form a triangular prism structure, and the lower chord is close to two edges of the bottom die and is fixed with the first connecting piece; the web members are of a wave-shaped structure, wave crests of the web members are connected with the upper chord members, and wave troughs of the web members are connected with the lower chord members; the two ends of the cross rod of the T-shaped connecting structure are connected with the lower chord, and the free end of the vertical rod is connected with the upper chord.
4. The disassembly-free bottom die truss floor deck according to claim 1, wherein the bottom die is a composite bottom die, and the composite material comprises the following basic components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.
5. The disassembly-free bottom die truss floor deck according to claim 4, wherein the bottom plate has a thickness of 4mm to 30mm, a width of 600mm to 4200mm, and a length of 1000mm to 12000mm, and the plate rib has a thickness of 10mm to 30mm and a width of 20mm to 40 mm.
6. The disassembly-free bottom die truss floor deck according to claim 5, wherein the distance between the plurality of ribs is 200mm to 400mm, and the distance between the plurality of first connectors is 400mm to 800 mm.
7. The disassembly-free bottom die truss floor deck according to claim 5, wherein the thickness of the bottom plate is 5mm-10 mm.
8. The disassembly-free bottom die truss floor support plate as claimed in claim 2, wherein the second connecting member is a straight-line-shaped structure, a cross-shaped structure or a net-shaped structure, and when the second connecting member is a cross-shaped structure or a net-shaped structure, one end of the third connecting member is disposed at a crossing point of the cross-shaped structure or the net-shaped structure.
9. The disassembly-free bottom die truss floor support plate according to claim 8, wherein the second connecting piece and the third connecting piece, the third connecting piece and the first connecting piece, and the first connecting piece and the truss are connected by welding or clamping, and the welding is at least one of flash butt welding, arc welding, electroslag pressure welding, resistance spot welding and steel bar gas pressure welding.
10. A method for manufacturing a bottom die truss floor support plate without dismantling is characterized by comprising the following steps:
preparing a composite material by using sand, fly ash, cement, silica fume, water and fiber;
the bottom die is manufactured by utilizing the composite material, and is manufactured by adopting a copying method, a pulp flowing method, a vacuum extrusion molding process or a formwork-erecting cast-in-place process, the bottom die comprises a bottom plate and a plurality of mutually parallel plate ribs arranged on the upper surface of the bottom plate along a first direction, the thickness of the bottom plate is 4-30 mm, the width of the bottom plate is 600-4200 mm, the length of the bottom plate is 1000-12000 mm, and the thickness of the plate ribs is 10-30 mm and the width of the plate ribs is 20-40 mm;
manufacturing a plurality of connecting assemblies, wherein each connecting assembly comprises a plurality of connecting bases and first connecting pieces connected with the plurality of connecting bases;
embedding or inserting the connecting component in the bottom die partially or in the rear direction to enable the connecting base to protrude out of the upper surface of the plate rib by a preset distance;
manufacturing a truss, wherein the truss comprises an upper chord member, a lower chord member and a web member;
when the bottom die reaches preset strength, the truss is connected with the connecting assembly to form a floor support plate.
11. The method of claim 10, wherein the composite material comprises the following base components in parts by weight: 1 part of sand, 0.1-0.2 part of fly ash, 0.6-0.8 part of cement, 0.1-0.2 part of silica fume and 0.16-0.22 part of water, wherein the composite material also comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.
12. The manufacturing method of claim 10, wherein the connection base includes a second connection member and a third connection member, the second connection member is disposed in the bottom plate under the plate rib in parallel with the bottom plate, the third connection member is perpendicular to the bottom plate, one end of the third connection member is disposed on the second connection member, and the other end of the third connection member protrudes a predetermined distance above the upper surface of the plate rib and is fixedly connected to the first connection member; the second connecting piece is a straight line, a cross and a net structure, and when the second connecting piece is the cross or the net structure, one end of the third connecting piece is arranged on the intersection point of the cross or the net structure.
13. The method of manufacturing of claim 10, wherein the process of connecting the truss to the connection assembly is: and connecting the truss to the first connecting piece along the direction vertical to the first connecting piece.
14. The method of manufacturing according to claim 10, further comprising: the thickness of the composite material bottom plate is 5mm-10 mm.
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| CN209620363U (en) * | 2018-08-30 | 2019-11-12 | 李予新 | It is a kind of to exempt from demoulding steel bar truss floor support plate using high-strength fabric cement plate as bed die |
| CN111535488A (en) * | 2020-06-11 | 2020-08-14 | 张宏宇 | Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor |
| CN112982782A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Assembly type disassembly-free steel bar truss floor bearing plate |
| CN215907142U (en) * | 2021-08-11 | 2022-02-25 | 西安五和土木工程新材料有限公司 | Exempt from to tear open die block truss floor carrier plate |
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- 2021-08-11 CN CN202110921411.4A patent/CN113565247A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209620363U (en) * | 2018-08-30 | 2019-11-12 | 李予新 | It is a kind of to exempt from demoulding steel bar truss floor support plate using high-strength fabric cement plate as bed die |
| CN111535488A (en) * | 2020-06-11 | 2020-08-14 | 张宏宇 | Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor |
| CN112982782A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Assembly type disassembly-free steel bar truss floor bearing plate |
| CN215907142U (en) * | 2021-08-11 | 2022-02-25 | 西安五和土木工程新材料有限公司 | Exempt from to tear open die block truss floor carrier plate |
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