CN212248888U

CN212248888U - Assembled prefabricated plate

Info

Publication number: CN212248888U
Application number: CN202020599916.4U
Authority: CN
Inventors: 金国洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-03
Filing date: 2020-04-21
Publication date: 2020-12-29
Anticipated expiration: 2030-04-21
Also published as: CN212224292U

Abstract

The utility model discloses an assembled prefabricated plate, assembled prefabricated plate includes the skeleton, adopts concrete placement in the skeleton, and the skeleton includes a plurality of triangle steel construction units (3), and the bottom welding of a plurality of triangle steel construction units (3) is on the die block, and expansion net (2) or wire net piece welding parcel are adopted to top and the left and right sides, and the upper and lower both ends of triangle steel construction unit (3) adopt a style of calligraphy reinforcement welding. The utility model provides a prefabricated plate is difficult for the rupture, can show heat insulating ability and the shock resistance that improves the prefabricated plate, and the cost is low, can satisfy the production of a plurality of sizes according to the customer's demand.

Description

Assembled prefabricated plate

Technical Field

The utility model relates to an assembly type structure field especially relates to an assembly type prefabricated plate.

Background

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, roof slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode.

The prefabricated slab has the advantages of no need of on-site formwork erection, short construction period and low cost, but has the defects of large weight, easy breakage in transportation and hoisting, poor integrity, single size of the prefabricated slab produced in a factory, inapplicability to the construction of various buildings and high customized production cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an assembled prefabricated plate is difficult for the rupture, and the shock resistance is good, and the cost is low, can satisfy the production of a plurality of sizes according to the customer's demand.

In order to solve the technical problem, the technical scheme of the utility model as follows: the prefabricated slab comprises a framework, wherein concrete is poured in the framework, the framework comprises a plurality of triangular steel structure units, the bottom ends of the triangular steel structure units are welded on a bottom die, and the top end, the left side and the right side of the triangular steel structure units are welded and wrapped by expansion nets or steel wire meshes; the expansion nets or the steel wire mesh sheets on the left side and the right side of the framework are inclined;

each triangular steel structure unit comprises a first steel bar, a second steel bar and a third steel bar which form a triangle, and the first steel bar and the second steel bar as well as the first steel bar and the third steel bar are connected through a plurality of web member steel bars; a plurality of triangle steel structure unit's first reinforcing bar is through a style of calligraphy reinforcing bar I welding, and a plurality of triangle steel structure unit's second reinforcing bar, third reinforcing bar adopt a style of calligraphy reinforcing bar II welding, improve structural stability and shock resistance.

The expansion net or the steel wire mesh at the left side and the right side of the framework are perpendicular to the metal skin, one side of the expansion net or the steel wire mesh is provided with a bulge, and the other side of the expansion net or the steel wire mesh is provided with a groove.

Preferably, the distance between the left side and the right side of the bottom die and the outermost end is reserved by 2-5 cm.

Further, adjacent web member bars of the same triangular steel structural unit are parallel or angled with respect to each other (for forming a triangle).

Further, be filled with the foam strip between the adjacent triangle steel constitutional unit, set up the foam strip and help keeping warm, reduce weight, simultaneously because all adopt concrete placement around the foam strip to and the steel reinforcement skeleton structure is whole very firm, therefore the foam strip can not reduce its structural stability, difficult rupture.

Furthermore, the foam strips are fixed on the I-shaped steel bars, the II-shaped steel bars, the expansion net or the steel wire mesh sheet, so that the foam strips are prevented from moving when concrete is poured.

Further, the concrete is foam concrete or sand-gravel concrete, and suitable concrete can be selected according to actual conditions. Preferably, the foam concrete is polyphenyl particle foam concrete.

Further, the I-shaped steel bars I and the I-shaped steel bars II are parallel or staggered (the I-shaped steel bars I and the I-shaped steel bars II which are positioned at the upper and lower positions can be positioned in parallel or staggered).

Furthermore, the precast slab is one or more of a floor slab, a roof slab and a wall slab; the bottom die is made of metal skin, an expansion net or a steel wire mesh sheet; the two ends of the framework can also be welded and wrapped by expansion nets or steel wire mesh sheets.

The utility model has the characteristics as follows: the utility model discloses a welding of a plurality of triangle steel constitutional units constitutes the skeleton on the die block, this triangle steel constitutional unit structure is firm, constitute the cost by the reinforcing bar and hang down, the preferred polyphenyl granule foam concrete of pouring in the centre, this concrete has better fire-resistant function, the formulation is inventor research and development, it openly reaches about 3000 degrees high temperature 30 minutes with oxygen burning to prove experimentally, the back is constant temperature, and it is slight to initiate the burning position, if the conflagration takes place only can burn in situ, can not reach the neighbor, there is fine syllable-dividing, the theftproof, it is waterproof, the fire prevention, functions such as protection against insects, and light in weight is the grit mixes one fifth of earth. As preferred, be filled with the foam strip between the adjacent triangle steel constitutional unit, set up the foam strip and help the heat preservation, reduce weight, simultaneously because all adopt concrete placement all around the foam strip to and the steel reinforcement skeleton structure is whole very firm, therefore the foam strip can not reduce its structural stability, difficult rupture.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a prefabricated plate structure is durable, is difficult for the rupture, and the shock resistance is good, and the cost is low, can satisfy the production of a plurality of sizes according to the customer's demand.

The utility model provides a prefabricated plate has outstanding fire prevention function, and among the fire resistance test, can reach 3000 ℃ high temperature burning and reach about 1 hour, burns badly, and refractory material performance is about the same, economical and practical. Has the functions of heat insulation, warm keeping, sound insulation, theft prevention, water prevention, fire prevention, insect prevention and earthquake resistance.

Drawings

Fig. 1 is a schematic structural diagram of a prefabricated slab provided by the present invention;

FIG. 2 is a schematic structural diagram of a precast slab before concrete is poured;

FIG. 3 is a schematic structural diagram of a prefabricated slab with concave-convex grooves on the left and right sides;

FIG. 4 is a longitudinal cross-sectional view of FIG. 2;

FIG. 5 is a longitudinal cross-sectional view of FIG. 3;

FIG. 6 is a schematic structural view of a skeleton;

FIG. 7 is a schematic view of a structure in which foam strips are filled in the skeleton;

fig. 8 is a schematic structural view of an expanded mesh;

FIG. 9 is a schematic structural view of a steel mesh;

the labels in the figure are: 2-bottom die, 3-triangular steel structural unit, 4-expansion net, 5-I-shaped steel bar I, 6-I-shaped steel bar II, 7-protrusion, 8-groove, 9-foam strip, 10-I-shaped steel bar, 31-first steel bar, 32-second steel bar, 33-third steel bar and 34-web member steel bar.

Detailed Description

The technical solutions of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following technical solutions.

Example 1

As shown in fig. 1 to 8, the prefabricated slab includes a framework, and the framework is placed on an i-beam 10 when the prefabricated slab is prepared, and concrete is poured into the framework. The width of the framework is generally set to be 60cm, the length of the framework is several meters to tens of meters, and the precast slabs after pouring can be cut off according to the needs of customers, so that the production requirements of a plurality of sizes can be met.

The framework comprises a plurality of triangular steel structure units 3, the bottom ends of the triangular steel structure units 3 are welded on the bottom die 2, the top end, the left side and the right side of the triangular steel structure units are welded and wrapped by expansion nets 4 or steel wire mesh sheets, and the two end heads of the framework can also be welded and wrapped by expansion nets; the bottom die is made of metal skin, expanded mesh or steel wire mesh, preferably, the bottom die is made of metal skin.

Each triangular steel structural unit 3 comprises a first steel bar 31, a second steel bar 32 and a third steel bar 33 which form a triangle, and the first steel bar 31, the second steel bar 32, the first steel bar 31 and the third steel bar 33 are connected through a plurality of web member steel bars 34; a plurality of triangle steel structure unit's first reinforcing bar passes through a style of calligraphy reinforcing bar I5 welding, and a plurality of triangle steel structure unit's second reinforcing bar, third reinforcing bar adopt a style of calligraphy reinforcing bar II6 welding. The upper and lower I-shaped steel bars I5 and the I-shaped steel bars II6 are parallel or staggered. Foam strips 9 are filled between adjacent triangular steel structural units, and the foam strips 9 are fixed on the I-shaped steel bars I, the I-shaped steel bars II and the expansion net or the steel wire mesh. The concrete is foam concrete or sand concrete.

As shown in figures 2 and 4, the triangular steel structure units on the outermost side are 3-5 cm away from the outermost side of the bottom die, and the distance between the first reinforcing steel bars on the outermost side and the outermost side of the bottom die exceeds 10 cm, so that when the expansion net or the steel wire mesh wraps the framework, the expansion net or the steel wire mesh on the left side and the right side of the framework are inclined, and the design is convenient for assembly and installation. In addition, according to the actual situation, the concave-convex groove can be designed according to fig. 3 and fig. 5 for assembly and installation, the expansion nets or the steel wire meshes on the left side and the right side of the framework are perpendicular to the metal sheet, one side of each expansion net or steel wire mesh is provided with a protrusion 7, and the other side of each expansion net or steel wire mesh is provided with a groove 8.

The adjacent web member steel bars in the same triangle steel structure unit are parallel or mutually angled, and the specific shape is shown in fig. 6. The lower end of the adjacent web member reinforcing bar may be extended outwardly by an additional rib welded to the bottom mold, but since the additional rib may affect the installation of the prefabricated panel, the lower end of the adjacent web member reinforcing bar is preferably welded to the second reinforcing bar and the third reinforcing bar.

In the embodiment, the prefabricated plate is one or more of a floor plate, a roof plate and a wall plate; the distance between the adjacent triangular steel structure units is 10-100 cm, and different distances can be set according to actual requirements. Reference to "a plurality" in the present application includes the quantity 1.

In addition, the expansion net in this embodiment can adopt the steel mesh sheet to replace, as shown in fig. 9, the utility model discloses do not restrict aperture size and shape in the steel mesh sheet, can select according to the condition.

The prefabricated plate provided by the utility model has the advantages of light weight, high strength, and functions of theft prevention, fire prevention, heat insulation, warm keeping, sound insulation, shock resistance and the like. The back of the test is burnt by fire of 3000 ℃ for half an hour, the temperature of the front is not increased basically, and the test is not burnt out and is close to the function of a refractory brick. Compared with the traditional light steel solid wall body, the wall body has higher strength and stronger fireproof performance, can be well fused with the wall body, is not layered and has high strength.

The thickness of the prefabricated plate can be increased according to the requirement, the thickness of the prefabricated plate can be increased from ten centimeters to fifty centimeters, and the prefabricated plate can meet the national standard requirements of prefabricated plates with different thicknesses.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The prefabricated slab is characterized by comprising a framework, wherein concrete is poured in the framework, the framework comprises a plurality of triangular steel structure units (3), the bottom ends of the triangular steel structure units (3) are welded on a bottom die (2), and the top end, the left side and the right side of the framework are welded and wrapped by expansion nets (4) or steel wire meshes; the expansion nets or the steel wire mesh sheets on the left side and the right side of the framework are inclined;

each triangular steel structural unit (3) comprises a first steel bar (31), a second steel bar (32) and a third steel bar (33) which form a triangle, and the first steel bar (31), the second steel bar (32), the first steel bar (31) and the third steel bar (33) are connected through a plurality of web member steel bars (34); a plurality of triangle steel structure unit's first reinforcing bar is through a style of calligraphy reinforcing bar I (5) welding, and a plurality of triangle steel structure unit's second reinforcing bar, third reinforcing bar adopt a style of calligraphy reinforcing bar II (6) welding.

2. The prefabricated panel according to claim 1, wherein the expanded meshes or expanded steel sheets on the left and right sides of the framework are perpendicular to the metal sheets, and one side of each expanded mesh or expanded steel sheet is provided with a protrusion (7) and the other side is provided with a groove (8).

3. The prefabricated slab as claimed in claim 1, wherein 2-5 cm is reserved between the left side and the right side of the bottom die and the outermost end.

4. The prefabricated panel of claim 1, wherein adjacent web members are parallel or angled with respect to each other.

5. The prefabricated panels as claimed in claim 1, wherein foam strips (9) are filled between adjacent triangular steel structural units.

6. Prefabricated panel according to claim 5, in which the foam strips (9) are fixed to the I-bars, II-bars, expanded meshes or steel mesh sheets.

7. The prefabricated panel of claim 1, wherein the concrete is foamed concrete or sand concrete.

8. The prefabricated panel according to claim 1, wherein the I-shaped reinforcing steel bars I (5) and the II-shaped reinforcing steel bars II (6) are parallel or staggered.

9. The prefabricated panel according to claim 1, wherein the prefabricated panel is one or more of a floor panel, a roof panel and a wall panel; the bottom die is made of metal skin, an expansion net or a steel wire mesh sheet; and two ends of the framework are welded and wrapped by expansion nets or steel wire mesh sheets.