阅读说明：本技术 一种免拆底模桁架楼承板及制作方法 (Disassembly-free bottom die truss floor bearing plate and manufacturing method ) 是由 张思海 曹继涛 邓明科 卜新星 余嘉豪 于 2021-08-12 设计创作，主要内容包括：本公开实施例是关于一种免拆底模桁架楼承板及制作方法。该免拆底模桁架楼承板包括：底模,底模包括底板和沿底板长度方向上自底板向上延伸的多个板肋,相邻板肋之间设置有预设肋间距；多个连接件,每个连接件沿垂直于底板长度的方向平铺在板肋上,每个连接件分别与对应的板肋固定连接；多个桁架,每个桁架沿底板长度方向上设置在底板的上方,每个桁架通过连接件固定在底模上。本公开实施例的方案可实现底模表面无焊点,不会出现漏浆的现象,且无须拆除底模,可直接进行抹灰。不需要在施工现场进行人工钢筋绑扎,节约了施工时间和人力成本。(The embodiment of the disclosure relates to a disassembly-free bottom die truss floor support plate and a manufacturing method thereof. Should exempt from to tear open die block truss floor carrier plate includes: the bottom die comprises a bottom plate and a plurality of plate ribs extending upwards from the bottom plate along the length direction of the bottom plate, and a preset rib interval is arranged between every two adjacent plate ribs; each connecting piece is horizontally laid on the plate rib along the direction vertical to the length of the bottom plate and is fixedly connected with the corresponding plate rib; and each truss is arranged above the bottom plate along the length direction of the bottom plate and is fixed on the bottom die through a connecting piece. The scheme of the embodiment of the disclosure can realize that the surface of the bottom die has no welding spots, the phenomenon of slurry leakage can not occur, and the bottom die does not need to be dismantled, and plastering can be directly performed. Need not carry out artifical reinforcement at the job site, practiced thrift engineering time and human cost.)

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 and a plurality of plate ribs extending upwards from the bottom plate along the length direction of the bottom plate, and a preset rib interval is arranged between every two adjacent plate ribs;

the connecting pieces are horizontally laid on the plate ribs along the direction perpendicular to the length of the bottom plate, and each connecting piece is fixedly connected with the corresponding plate rib;

a plurality of trusses, each truss being disposed above the bottom plate in a length direction of the bottom plate; and each truss is fixed on the bottom die through the connecting piece.

2. The disassembly-free bottom die truss floor deck of claim 1, wherein each truss comprises:

an upper chord positioned at the top of the truss;

the two lower chords are respectively positioned on two sides of the bottom of the truss; the upper chord and the lower chord on each side are parallel to each other, and the upper chord and the lower chord on each side are connected through a web rib respectively;

the web rib is wavy, a plurality of wave crests of the web rib are respectively connected with the upper chord, and a plurality of wave troughs of the web rib are respectively connected with the lower chord on the same side;

and two ends of a transverse rib of the T-shaped connecting frame are connected with the lower chord, and the free end of a vertical rib is connected with the upper chord.

3. The disassembly-free bottom die truss floor deck according to claim 2, wherein the connecting members are connecting steel bars, and the connecting steel bars are fixed to each plate rib through U-shaped pieces.

4. The disassembly-free bottom die truss floor support plate as claimed in claim 3, wherein the U-shaped part comprises a U-shaped groove, two sides of the U-shaped groove respectively extend outwards horizontally to form a horizontal part, a fixing hole is preset on the horizontal part, and the connecting steel bar passes through the fixing hole through a self-tapping screw after being clamped by the U-shaped groove and is fixed on the plate rib; wherein, the connecting reinforcing steel bar is welded with the lower chord.

5. The disassembly-free bottom die truss floor deck according to claim 2, wherein the connecting member is a batten comprising a horizontal flange and a plurality of vertical flanges vertically arranged on the lower surface of the horizontal flange; a plate rib accommodating cavity matched with the plate rib is formed between the adjacent vertical flanges and is used for accommodating the plate rib; and the pressing strip and the bottom die are tightly pressed, a plate rib accommodating cavity on the pressing strip corresponds to the bottom plate, the left side and the right side of the plate rib are attached, and the height of the vertical flange is smaller than that of the plate rib, so that a certain gap is reserved between the bottom plate and the vertical flange.

6. The disassembly-free bottom die truss floor support plate as claimed in claim 5, wherein the height of the plate ribs on the two sides of the bottom plate is higher than the height of other plate ribs, the head ends and the tail ends of the horizontal flanges are embedded in the plate ribs on the two sides of the bottom plate, and the horizontal flanges between the head ends and the tail ends and the corresponding plate ribs below the horizontal flanges are fixed through self-tapping screws; wherein the batten is welded with the lower chord.

7. The disassembly-free bottom die truss floor deck according to claim 1, wherein the bottom die is made of a composite material, 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 further comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.

8. The disassembly-free bottom die truss floor support plate as claimed in claim 5, wherein the material of the batten can be a steel plate, an aluminum plate or an alloy plate.

9. The disassembly-free bottom die truss floor deck according to claim 1, wherein the thickness of the bottom plate is 4-30 mm, the height of each plate rib is 10-30 mm, the width of each plate rib is 20-40 mm, and the preset rib interval between every two adjacent plate ribs is 200-400 mm.

10. The disassembly-free bottom die truss floor bearing plate as claimed in claim 5, wherein the thickness of the pressing strips is 0.4-4 mm, the width of the horizontal flanges is 10-40 mm, the width of the vertical flanges is 8-25 mm, and the laying distance of the pressing strips on the bottom die is 400-800 mm.

11. A method for manufacturing a bottom die truss floor support plate without dismantling is characterized by comprising the following steps:

manufacturing a composite material, namely manufacturing the composite material by using sand, fly ash, cement, silica fume, water and fibers;

manufacturing a bottom die, manufacturing the bottom die by using the composite material, and manufacturing the bottom die by adopting a vacuum extrusion molding process or a formwork support cast-in-place process, wherein the bottom die comprises a bottom plate and a plurality of plate ribs extending upwards from the bottom plate along the length direction of the bottom plate, and a preset rib interval is arranged between every two adjacent plate ribs;

manufacturing a connecting piece, wherein the connecting piece is made of metal;

fixing the connecting piece to the bottom die, and fixing the connecting piece on the plate rib along a direction perpendicular to the length of the bottom plate after the bottom die is formed;

and after the connecting piece is fixed with the bottom die, the truss is fixed on the bottom die by welding the connecting piece, so that a floor support plate is formed.

12. The method for manufacturing the truss floor support plate according to claim 11, wherein the bottom mold is made of a composite material, 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 further comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres.

13. The method for manufacturing the truss floor deck according to claim 11, wherein the thickness of the bottom plate is 4-30 mm, the height of each plate rib is 10-30 mm, the width of each plate rib is 20-40 mm, and the preset rib spacing between two adjacent plate ribs is 200-400 mm.

14. The method for manufacturing the truss floor support plate according to claim 11, wherein the connecting pieces are connecting steel bars, and the connecting steel bars are fixed with the plate ribs through U-shaped pieces; the U-shaped part comprises a U-shaped groove, horizontal parts horizontally extend outwards from two sides of the U-shaped groove respectively, fixing holes are preset in the horizontal parts, and the connecting steel bars penetrate through the fixing holes and are fixed on the plate ribs through self-tapping screws after being clamped by the U-shaped groove; wherein, the connecting reinforcing steel bar is welded with the lower chord.

15. The method for manufacturing a truss floor support plate according to claim 11, wherein the connecting member is a metal batten and comprises a horizontal flange and a plurality of vertical flanges vertically arranged on the lower surface of the horizontal flange, the vertical flanges are respectively vertically arranged on the lower surface of the horizontal flange, and the length direction of the vertical flange is consistent with that of the horizontal flange; a plate rib accommodating cavity matched with the plate rib is formed between the adjacent vertical flanges and is used for accommodating the plate rib, and the height of the vertical flanges is smaller than that of the plate rib, so that a certain gap is reserved between the bottom plate and the vertical flanges; wherein the batten is welded with the lower chord.

16. The manufacturing method of the truss floor bearing plate according to claim 15, wherein the thickness of the battens is 0.4-4 mm, the width of the horizontal flanges is 10-40 mm, the width of the vertical flanges is 8-25 mm, and the laying distance of the battens on the bottom die is 400-800 mm.

Technical Field

The embodiment of the disclosure relates to the technical field of floor support plates, in particular to a disassembly-free bottom die truss floor support plate and a manufacturing method.

Background

Along with the development of building economy of China, the demand of the steel bar truss floor bearing plate is gradually increased, the steel bar truss floor bearing plate is widely applied to the building industry and is generally applied to large-scale steel structure buildings, and the steel bar truss floor bearing plate is a combined floor bearing plate which is formed by processing steel bars in a floor slab into trusses in a factory and connecting the trusses and a bottom die into a whole.

In the related art, the truss floor support plate is divided into a truss floor support plate with a detachable bottom die and a truss floor support plate with an undetachable bottom die according to whether the bottom die of the truss is detachable or not. The bottom die of the truss floor support plate with the detachable bottom die is generally made of a bamboo plywood, the truss and the bottom die are fixed through a fastener, and the bottom die is detached and reused after pouring is finished; the bottom die of the truss floor support plate with the undetachable bottom die is made of a galvanized profiled steel sheet, is formed in advance in a pressing mode, and then the truss is welded to the profiled steel sheet to form the truss floor support plate without the removal of the bottom die.

With regard to the above technical solutions, the inventors have found that at least some of the following technical problems exist: for example, when the bottom die of the truss floor support plate can be detached, the detaching process is labor-consuming, the bottom die can be damaged, holes are formed, and the problem that direct decoration cannot be realized exists; when the bottom die of the truss floor support plate cannot be detached, welding spots exist on the surface of the bottom die, slurry is easy to leak, and the bottom die cannot be directly plastered for decoration.

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 disclosure as 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 the disclosed embodiments is to provide a removal-free bottom die truss floor deck 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 the first aspect of the embodiment of this disclosure, provide an exempt from to tear open die block truss floor carrier plate, should exempt from to tear open die block truss floor carrier plate includes:

the bottom die comprises a bottom plate and a plurality of plate ribs extending upwards from the bottom plate along the length direction of the bottom plate, and a preset rib interval is arranged between every two adjacent plate ribs;

the connecting pieces are horizontally laid on the plate ribs along the direction perpendicular to the length of the bottom plate, and each connecting piece is fixedly connected with the corresponding plate rib;

a plurality of trusses, each truss being disposed above the bottom plate in a length direction of the bottom plate; and each truss is fixed on the bottom die through the connecting piece.

In an embodiment of the present disclosure, each truss includes:

an upper chord positioned at the top of the truss;

the two lower chords are respectively positioned on two sides of the bottom of the truss; the upper chord and the lower chord on each side are parallel to each other, and the upper chord and the lower chord on each side are connected through a web rib respectively;

the web rib is wavy, a plurality of wave crests of the web rib are respectively connected with the upper chord, and a plurality of wave troughs of the web rib are respectively connected with the lower chord on the same side;

and two ends of a transverse rib of the T-shaped connecting frame are connected with the lower chord, and the free end of a vertical rib is connected with the upper chord.

In an embodiment of the present disclosure, the connecting member is a connecting steel bar, and the connecting steel bar is fixed to each of the plate ribs through a U-shaped member.

In an embodiment of the disclosure, the U-shaped part includes a U-shaped groove, two sides of the U-shaped groove respectively extend horizontally outward to form a horizontal part, a fixing hole is preset on the horizontal part, and the connecting steel bar is clamped by the U-shaped groove and then passes through the fixing hole through a self-tapping screw to be fixed on the plate rib; wherein, the connecting reinforcing steel bar is welded with the lower chord.

In one embodiment of the present disclosure, the connecting member is a pressing strip, and the pressing strip includes a horizontal flange and a plurality of vertical flanges vertically arranged on the lower surface of the horizontal flange; a plate rib accommodating cavity matched with the plate rib is formed between the adjacent vertical flanges and is used for accommodating the plate rib; and the pressing strip and the bottom die are tightly pressed, a plate rib accommodating cavity on the pressing strip corresponds to the bottom plate, the left side and the right side of the plate rib are attached, and the height of the vertical flange is smaller than that of the plate rib, so that a certain gap is reserved between the bottom plate and the vertical flange.

In one embodiment of the disclosure, the height of the plate ribs on the two sides of the bottom plate is higher than that of the other plate ribs, the head ends and the tail ends of the horizontal flanges are embedded in the plate ribs on the two sides of the bottom plate, and the horizontal flanges between the head ends and the tail ends and the corresponding plate ribs below the horizontal flanges are fixed through self-tapping screws; wherein the batten is welded with the lower chord.

In an embodiment of the disclosure, the bottom mold is made of a composite material, and the composite material includes 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 further 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 disclosure, the pressing strip may be made of a steel plate, an aluminum plate, or an alloy plate.

In an embodiment of the present disclosure, the thickness of the bottom plate is 4-30 mm, the height of each plate rib is 10-30 mm, the width of each plate rib is 20-40 mm, and the distance between two adjacent plate ribs is 200-400 mm.

In an embodiment of the disclosure, the thickness of the pressing strip is 0.4-4 mm, the width of the horizontal flange is 10-40 mm, the width of the vertical flange is 8-25 mm, and the laying distance of the pressing strip on the bottom die is 400-800 mm.

According to a second aspect of the embodiments of the present disclosure, there is provided a method for manufacturing a bottom die truss floor support plate without dismantling, the method including:

preparing a composite material by using sand, fly ash, cement, silica fume, water and fiber;

manufacturing a bottom die, manufacturing the bottom die by using the composite material, and manufacturing the bottom die by adopting a vacuum extrusion molding process or a formwork support cast-in-place process, wherein the bottom die comprises a bottom plate and a plurality of plate ribs extending upwards from the bottom plate along the length direction of the bottom plate, and a preset rib interval is arranged between every two adjacent plate ribs;

manufacturing a connecting piece, wherein the connecting piece is made of metal;

fixing the connecting piece to the bottom die, and fixing the connecting piece on the plate rib along a direction perpendicular to the length of the bottom plate after the bottom die is formed;

and after the connecting piece is fixed with the bottom die, the truss is fixed on the bottom die by welding the connecting piece, so that a floor support plate is formed.

In one embodiment of the present disclosure, 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 further 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 disclosure, the thickness of the bottom plate is 4-30 mm, the height of each plate rib is 10-30 mm, the width of each plate rib is 20-40 mm, and the distance between two adjacent plate ribs is 200-400 mm.

In one embodiment of the disclosure, the connecting piece is manufactured, the connecting piece is a connecting steel bar, and the connecting steel bar is fixed with the plate rib through a U-shaped piece; the U-shaped part comprises a U-shaped groove, horizontal parts horizontally extend outwards from two sides of the U-shaped groove respectively, fixing holes are preset in the horizontal parts, and the connecting steel bars penetrate through the fixing holes and are fixed on the plate ribs through self-tapping screws after being clamped by the U-shaped groove; wherein, the connecting reinforcing steel bar is welded with the lower chord.

In one embodiment of the disclosure, the connecting piece is made of a metal pressing strip and comprises a horizontal flange and a plurality of vertical flanges vertically arranged on the lower surface of the horizontal flange, the vertical flanges are respectively vertically arranged on the lower surfaces of the horizontal flanges, and the length direction of the vertical flanges is consistent with that of the horizontal flanges; and a plate rib accommodating cavity matched with the plate rib is formed between the adjacent vertical flanges and is used for accommodating the plate rib, and the height of the vertical flanges is smaller than that of the plate rib.

In an embodiment of the disclosure, the thickness of the pressing strip is 0.4-4 mm, the width of the horizontal flange is 10-40 mm, the width of the vertical flange is 8-25 mm, and the laying distance of the pressing strip on the bottom die is 400-800 mm.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

in the embodiment of the disclosure, by the disassembly-free bottom die truss floor support plate and the manufacturing method thereof, each truss in the disassembly-free bottom die truss floor support plate is fixed on the plate rib on the bottom die through the connecting piece, so that the surface of the bottom die is free of welding spots, the phenomenon of slurry leakage can not occur, the bottom die does not need to be disassembled, and plastering and decoration can be directly performed. Need not carry out artifical reinforcement at the job site, practiced thrift engineering time and human cost.

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 detaching when a connecting member is a connecting reinforcement according to an exemplary embodiment of the present disclosure;

FIG. 2 is a top view of a demolition-free bottom die truss floor deck with connecting rebars according to an exemplary embodiment of the disclosure;

fig. 3 is a cross-sectional view of a demolition-free bottom die truss floor deck with connecting pieces for connecting reinforcing bars according to an exemplary embodiment of the disclosure;

FIG. 4 shows a schematic structural diagram of a U-shaped groove in an exemplary embodiment of the disclosure;

fig. 5 is a schematic perspective view illustrating a non-dismantling bottom die truss floor deck according to an exemplary embodiment of the disclosure when a connecting member is a batten;

FIG. 6 is a top view of a non-dismantling bottom die truss floor deck with connecting members being battens in an exemplary embodiment of the disclosure;

FIG. 7 is a cross-sectional view of a demolition-free bottom die truss floor deck with connecting members being hold-downs in an exemplary embodiment of the disclosure;

FIG. 8 shows a schematic view of a bead construction in an exemplary embodiment of the disclosure;

fig. 9 is a schematic flow chart illustrating a method for manufacturing a bottom die truss floor deck without dismantling in an exemplary embodiment of the disclosure.

In the figure: 100-bottom die; 110-plate ribs; 120-a backplane; 200-truss; 210-upper chord; 220-lower chord; 230-abdominal muscle; 240-T type link; 300-connecting reinforcing steel bars; 400-U-shaped groove; 500-self-tapping screw; 600-layering; 610-horizontal flanges; 620-vertical flanges.

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 disclosure and 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 example embodiment, a bottom die truss floor deck is provided without dismantling. Referring to fig. 1, the detachment-free bottom die truss floor deck may include:

the bottom die 100 comprises a bottom plate 120 and a plurality of plate ribs 110 extending upwards from the bottom plate 120 along the length direction of the bottom plate 120, wherein a preset rib interval is arranged between every two adjacent plate ribs 110;

a plurality of connecting members, each of which is laid on the plate rib 110 in a direction perpendicular to the length of the bottom plate 120, and each of which is fixedly connected to the corresponding plate rib 110;

a plurality of trusses 200, each truss 200 being disposed above the base plate 120 along the length of the base plate 120; each truss 200 is fixed on the bottom die 100 by the connecting member.

Through the disassembly-free bottom die truss floor support plate, each truss 200 in the disassembly-free bottom die truss floor support plate is fixed on the plate rib 110 on the bottom die 100 through the connecting piece, so that the surface of the bottom die 100 is free of welding spots, the phenomenon of slurry leakage cannot occur, the bottom die 100 does not need to be disassembled, and plastering and decoration can be directly performed. Need not carry out artifical reinforcement at the job site, practiced thrift engineering time and human cost. Meanwhile, the bottom plate 120 is provided with the plate ribs 110, so that on the premise of ensuring the strength and rigidity of the bottom plate, the material consumption is reduced, and the cost is saved.

Next, the parts of the above-described detachment-free bottom mold truss floor deck in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 8.

In one embodiment, an upper chord 210, the upper chord 210 being located at the top of the truss 200;

two lower chords 220, wherein each lower chord 220 is respectively positioned at two sides of the bottom of the truss 200; the upper chord 210 and the lower chord 220 on each side are parallel to each other, and the upper chord 210 and the lower chord 220 on each side are respectively connected through a web rib 230;

the web rib 230 is wavy, a plurality of wave crests of the web rib 230 are respectively connected with the upper chord 210, and a plurality of wave troughs of the web rib 230 are respectively connected with the lower chord 220 on the same side;

and two ends of a transverse rib of the T-shaped connecting frame 240 are connected with the lower chord 220, and the free end of a vertical rib is connected with the upper chord 210. Specifically, the truss 200 is a triangular structure, the upper chord 210 is located at the top of the truss 200, two lower chords 220 are provided, each lower chord 220 is located at two sides of the bottom of the truss 200, and the upper chord 210 and the lower chord 220 on each side are connected through a web rib 230. The triangular structure has stability, and the arrangement makes the whole truss 200 structure more stable and durable. The upper chord 210 and the lower chord 220 can be solid rods or hollow rods, the diameters of the upper chord 210 and the lower chord 220 are 6-22 mm respectively, the diameter of the web bar 230 is 4-12 mm, and the height of the truss 200 is 70-300 mm. The specific size of each dimension can be selected according to the requirement, and in addition, the upper chord 210 can also adopt a hollow circular steel tube or a steel tube concrete rod piece, and the invention is not limited at all. The wave crests of the web ribs 230 are connected with the upper chord 210, and the wave troughs of the web ribs 230 are connected with the lower chord 220 on the same side. So configured, the truss 200 structure is more stable and durable. In practice, the connection mode is welding, and the welding mode can be flash butt welding, arc welding, electroslag pressure welding, resistance spot welding, steel bar gas pressure welding and the like, and is not particularly limited, and the welding process is simple and easy to operate, and the connection is firmer and more reliable.

In one embodiment, the connectors are connection bars fixed to each of the plate ribs 110 by U-shaped members. Specifically, the U-shaped part comprises a U-shaped groove 100, horizontal parts horizontally extend outwards from two sides of the U-shaped groove 100 respectively, fixing holes are preset in the horizontal parts, and the connecting steel bars are clamped by the U-shaped groove 100 and then fixed on the plate ribs 110 through self-tapping screws 500 penetrating through the fixing holes; wherein, the connecting steel bar is welded with the lower chord 220, the self-tapping screw 500 can be a cross countersunk head lug self-drilling screw, and the size is M3-M4.5; or a stainless steel cross countersunk self-tapping screw made of 304 stainless steel and having a size of M3-M4.5; or the outer hexagonal half-thread self-tapping screw is made of carbon steel and has the size of M3-M4.5. The invention is not limited in this regard.

In one embodiment, the connecting member is a batten 600, and the batten 600 comprises a horizontal flange 610 and a plurality of vertical flanges 620 vertically arranged on the lower surface of the horizontal flange 610; a plate rib accommodating cavity matched with the plate rib 110 is formed between the adjacent vertical flanges 620 and is used for accommodating the plate rib 110; and the pressing strip 600 and the bottom die 100 are tightly pressed, the plate rib accommodating cavity on the pressing strip 600 is attached to the corresponding plate rib 110 on the bottom plate 120 in a left-right mode, and the height of the vertical flange 620 is smaller than that of the plate rib 110, so that a certain gap is reserved between the bottom plate and the vertical flange. Specifically, in one pressing strip 600, each vertical flange 620 is vertically arranged on the lower surface of a horizontal flange 610, the length direction of each vertical flange 620 is consistent with that of the horizontal flange 610, and a plate rib accommodating cavity matched with the plate rib 110 is formed between every two adjacent vertical flanges 620 and used for accommodating the plate rib 110; and under the state that the pressing strips 600 are tightly pressed with the bottom die 100, the horizontal flanges 610 between the adjacent vertical flanges 620 are in contact with the surfaces of the corresponding plate ribs 110, the left and right sides of the plate rib accommodating cavity on each pressing strip 600 and the corresponding plate rib 110 on the bottom plate 120 are in a fit state, the height of each vertical flange 620 is smaller than that of the corresponding plate rib 110, namely, a gap is reserved between the bottom of each vertical flange 620 and the bottom of the corresponding plate rib accommodating cavity, when concrete is poured, the gap is filled with concrete, after the concrete is solidified, the connection strength between the pressing strips 600 and the bottom plate 120 is further enhanced, and the bearing capacity of the whole floor bearing plate is enhanced. The horizontal flange 610 and the plurality of vertical flanges 620 of the pressing strip 600 can be integrally formed or arranged in a split manner; the horizontal flange 610 and the vertical flange 620 of the pressing strip 600 may be L-shaped, that is, the vertical flange 620 is disposed on the sidewall of the horizontal flange 610, or T-shaped, that is, the vertical flange 620 is disposed on the lower surface of the horizontal flange 610, which is not limited in this respect.

In one embodiment, the height of the plate rib 110 on both sides of the base plate 120 is higher than the height of the other plate ribs 110, the head end and the tail end of the horizontal flange 610 are embedded in the plate ribs 110 on both sides of the base plate 120, and the horizontal flange 610 between the head end and the tail end and the corresponding plate rib 110 below the head end and the tail end are fixed by the self-tapping screw 500. Specifically, the plate ribs 110 on the two sides of the bottom plate 120 wrap the head end and the tail end of the horizontal flange 610 on the pressing strip 600, except for the head end and the tail end of the horizontal flange 610 on the pressing strip 600, the horizontal flanges 610 on the head end and the tail end are fixed with the corresponding plate ribs 110 through fasteners, and thus the pressing strip 600 is better fastened with the bottom die 100. In addition, the heights of the plate ribs 110 on the two sides of the base plate 120 may be the same as the heights of the other plate ribs 110, the head end and the tail end of the pressing strip 600 may not be embedded in the plate ribs 110 on the two sides of the base plate 120, and the pressing strip 600 is directly arranged on the base plate 120 and fixed by the self-tapping screw 500.

In one embodiment, the material of the bottom mold 100 is a composite material, and the composite material includes 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 further comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres. The composite material is an effective maintenance repairing material, and has the advantages of high strength, high ductility, strongest energy absorption capacity and crack control capacity and strong durability under the same geometric dimension and load condition. And the composite material is used as the bottom die 100, so that the purpose of plastering and finishing on the bottom plate 120 of the bottom die 100 can be realized, the bottom die 100 is prevented from being damaged in the dismantling process and cannot be reused, the process is simplified, the construction period is shortened, and the benefit is improved.

In one embodiment, the material of the bead 600 may be a steel plate, an aluminum plate, or an alloy plate. Specifically, the material of the bead 600 may be a steel plate, an aluminum plate, or an alloy plate, and the material of the bead 600 may be selected according to actual conditions, which is not limited in the present invention.

In one embodiment, the thickness of the bottom plate 120 is 4-30 mm, the height of each plate rib 110 is 10-30 mm, the width of each plate rib 110 is 20-40 mm, and the preset rib interval between two adjacent plate ribs 110 is 200-400 mm. The optimal thickness range of the bottom plate 120 is 5-10 mm, and the specific thickness of the bottom plate 120, the height of the plate ribs 110, the width of the plate ribs 110 and the size of the rib spacing can be selected according to actual conditions to meet different requirements, which is not limited by the invention. When the thickness of bottom plate 120 is above-mentioned value, the bearing capacity of satisfying the floor carrier plate that can be better to bottom plate 120 is for the upper truss 200 provides the protective layer, and bottom plate 120 is thinner than current commonly used flat board, provides bigger clear height for the house on the basis of satisfying bearing strength. The width of the bottom mold 100 may be 600mm to 4200mm, and the length of the bottom mold 100 may be 1000mm to 12000 mm. The invention is not limited in any way herein by the specific dimensions.

In one embodiment, the thickness of the pressing strip 600 is 0.4-4 mm, the width of the horizontal flange 610 is 10-40 mm, the width of the vertical flange 620 is 8-25 mm, and the laying distance of the pressing strip 600 on the bottom die 100 is 400-800 mm. Specifically, the battens 600 can be uniformly laid on the bottom die 100, wherein the laying distance range of the battens 600 on the bottom die 100 is 400-800 mm, the thickness of each batten 600 is 0.4-4 mm, the width of the horizontal flange 610 is 10-40 mm, and the width of each vertical flange 620 is 8-25 mm. The specific laying space size can be selected according to actual conditions so as to meet different requirements. The invention is not limited in this regard.

Above-mentioned exempt from to tear open die block truss building carrier plate has the advantage of exempting from to tear open die block truss building carrier plate on the market at present, the reinforcing bar is arranged evenly, upper and lower floor's reinforcing bar interval and reinforcing bar protective layer thickness have reliable assurance, truss 200 atress mode is reasonable, the selection material economy, it is obvious to synthesize the cost advantage, in the construction stage, this exempt from to tear open die block truss building carrier plate can bear construction load, directly lay on the girder steel, on-the-spot reinforcement work load reduces 60% ~ 70%, can further shorten the time limit for a project, carrying out simple steel bar engineering alright concreting. And the template function is completely replaced, the template erection and disassembly functions are reduced, and the floor slab construction efficiency is greatly improved.

The example embodiment provides a method for manufacturing a bottom die truss floor support plate without dismantling. Referring to fig. 9, the manufacturing method includes:

step S101: preparing a composite material by using sand, fly ash, cement, silica fume, water and fiber;

step S102: manufacturing a bottom die 100, manufacturing the bottom die 100 by using the composite material, and manufacturing the bottom die 100 by using a vacuum extrusion molding process or a formwork support cast-in-place process, wherein the bottom die 100 comprises a bottom plate 110 and a plurality of plate ribs 120 extending upwards from the bottom plate 110 along the length direction of the bottom plate 110, and a preset rib interval is arranged between every two adjacent plate ribs 120;

step S103: manufacturing a connecting piece, wherein the connecting piece is made of metal;

step S104: fixing the connecting member to the bottom die 100, and after the bottom die 100 is molded, fixing the connecting member to the plate rib 110 along a direction perpendicular to the length of the bottom plate 120;

step S105: after the connecting member is fixed to the bottom mold 100, the truss 200 is fixed to the bottom mold 100 by welding with the connecting member, so as to form a floor deck.

When the bottom die 100 adopts a formwork-supporting cast-in-place process, firstly, a formwork is manufactured with the plate ribs 110 facing downwards according to the size of the bottom die 100, secondly, a composite material is poured according to the designed thickness, and finally, the bottom die 100 is maintained.

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 further comprises the following auxiliary components in percentage by volume: 1-2% by volume of the base component of fibres. The preparation process of the composite material comprises the following steps: adding specified water into a stirrer according to a certain proportion of the components of the composite material, gradually adding sand, fly ash, cement and silica fume according to the proportion requirement in the stirring process, uniformly stirring, then gradually adding fibers according to the corresponding proportion, stirring for about 15-20 minutes, and stopping stirring until the fibers are uniformly dispersed and have no agglomeration, thus obtaining the composite material. The composite material is an effective maintenance repairing material, and has the advantages of high strength, high ductility, strongest energy absorption capacity and crack control capacity and strong durability under the same geometric dimension and load condition. And the composite material is used as the bottom die 100, so that the purpose of plastering and finishing on the bottom plate 120 of the bottom die 100 can be realized, the bottom die 100 is prevented from being damaged in the dismantling process and cannot be reused, the process is simplified, the construction period is shortened, and the benefit is improved.

In one embodiment, the thickness of the bottom plate 120 is 4-30 mm, the height of each plate rib 110 is 10-30 mm, the width of each plate rib 110 is 20-40 mm, and the preset rib interval between two adjacent plate ribs 110 is 200-400 mm. The optimal thickness of the bottom plate 120 is 5-10 mm. The specific thickness of the bottom plate 120, the height of the plate rib 110, the width of the plate rib 110 and the size of the rib interval can be selected according to practical situations to meet different requirements, which is not limited in the present invention. When the thickness of bottom plate 120 is above-mentioned value, the bearing capacity of satisfying the floor carrier plate that can be better to bottom plate 120 is for the upper truss 200 provides the protective layer, and bottom plate 120 is thinner than current commonly used flat board, provides bigger clear height for the house on the basis of satisfying bearing strength. The width of the bottom mold 100 may be 600mm to 4200mm, and the length of the bottom mold 100 may be 1000mm to 12000 mm. The invention is not limited in any way herein by the specific dimensions.

In one embodiment, the connecting member is made as a connecting steel bar, and the connecting steel bar is fixed to the plate rib 110 by a U-shaped member; the U-shaped part comprises a U-shaped groove 100, horizontal parts horizontally extend outwards from two sides of the U-shaped groove 100 respectively, fixing holes are preset in the horizontal parts, and the connecting steel bars are clamped by the U-shaped groove 100 and then penetrate through the fixing holes through self-tapping screws 500 to be fixed on the plate ribs 110; wherein the connection reinforcing bars are welded with the lower chord 220. Specifically, the self-tapping screw 500 can be a cross countersunk head lug self-drilling screw with the size of M3-M4.5; or a stainless steel cross countersunk self-tapping screw made of 304 stainless steel and having a size of M3-M4.5; or the outer hexagonal half-thread self-tapping screw is made of carbon steel and has the size of M3-M4.5. The invention is not limited in this regard.

In one embodiment, the connecting member is made as a metal bead 600, which includes a horizontal flange 610 and a plurality of vertical flanges 620 vertically disposed on the lower surface of the horizontal flange 610; a plate rib accommodating cavity matched with the plate rib 110 is formed between the adjacent vertical flanges 620 and is used for accommodating the plate rib; and the pressing strip 600 and the bottom die 100 are tightly pressed, the plate rib accommodating cavity on the pressing strip 600 is attached to the corresponding plate rib 110 on the bottom plate 120 in a left-right mode, and the height of the vertical flange 620 is smaller than that of the plate rib 110, so that a certain gap is reserved between the bottom plate 102 and the vertical flange 620. Specifically, in one pressing strip 600, each vertical flange 620 is vertically arranged on the lower surface of a horizontal flange 610, the length direction of each vertical flange 620 is consistent with that of the horizontal flange 610, and a rib accommodating cavity matched with the rib 110 is formed between every two adjacent vertical flanges 620; and under the state that the pressing strips 600 are tightly pressed with the bottom die 100, the horizontal flanges 610 between the adjacent vertical flanges 620 are in contact with the surfaces of the corresponding plate ribs 110, the left and right sides of the plate rib accommodating cavity on each pressing strip 600 and the corresponding plate rib 110 on the bottom plate 120 are in a fit state, the height of each vertical flange 620 is smaller than that of the corresponding plate rib 110, namely, a gap is reserved between the bottom of each vertical flange 620 and the bottom of the corresponding plate rib accommodating cavity, when concrete is poured, the gap is filled with concrete, after the concrete is solidified, the connection strength between the pressing strips 600 and the bottom plate 120 is further enhanced, and the bearing capacity of the whole floor bearing plate is enhanced. The horizontal flange 610 and the plurality of vertical flanges 620 of the pressing strip 600 can be integrally formed or arranged in a split manner; the horizontal flange 610 and the vertical flange 620 of the pressing strip 600 may be L-shaped, that is, the vertical flange 620 is disposed on the sidewall of the horizontal flange 610, or T-shaped, that is, the vertical flange 620 is disposed on the lower surface of the horizontal flange 610, which is not limited in this respect.

In one embodiment, the thickness of the pressing strip 600 is 0.4-4 mm, the width of the horizontal flange 610 is 10-40 mm, the width of the vertical flange 620 is 8-25 mm, and the laying distance of the pressing strip 600 on the bottom die 100 is 400-800 mm. Specifically, the battens 600 can be uniformly laid on the bottom die 100, wherein the laying distance range of the battens 600 on the bottom die 100 is 400-800 mm, the thickness of each batten 600 is 0.4-4 mm, the width of the horizontal flange 610 is 10-40 mm, and the width of each vertical flange 620 is 8-25 mm. The specific laying space size can be selected according to actual conditions so as to meet different requirements. The invention is not limited in this regard.

According to the manufacturing method of the disassembly-free bottom die truss floor support plate, each truss 200 in the disassembly-free bottom die truss floor support plate is fixed on the plate rib 110 on the bottom die 100 through the connecting piece, so that the surface of the bottom die 100 is free of welding spots, the phenomenon of slurry leakage cannot occur, the bottom die 100 does not need to be disassembled, and plastering and decoration can be directly performed. Need not carry out artifical reinforcement at the job site, practiced thrift engineering time and human cost.

In the above examples, 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 mold were tested according to the regulations of the existing national standard "test method for physical and mechanical properties of concrete" GB/T50081, "test method for cement mortar strength (ISO method)" GB/T17671, "and JCT 2461-2018" 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 experimental data of the bottom template obtained according to the above test method are shown in table 1 below:

TABLE 128 d mechanical Properties Experimental data

The above experimental data show that:

1. the compressive strength of the composite material is basically equivalent to that of C50 concrete, and the composite material 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 illustrate that the composite material has a good ductility index;

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, merely for the convenience of describing the disclosed embodiments and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be considered limiting of the disclosed embodiments.

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 disclosure, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present disclosure, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the embodiments of the present disclosure, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise 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 present disclosure. 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 disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.