CN212562162U

CN212562162U - Prefabricated slab

Info

Publication number: CN212562162U
Application number: CN202020533146.3U
Authority: CN
Inventors: 郭操
Original assignee: CCDI International Shenzhen Design Consultants Co Ltd
Current assignee: CCDI International Shenzhen Design Consultants Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-02-19
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a prefabricated plate relates to building technical field for solve the current prefabricated plate in the work progress job site confusion, the efficiency of construction is low, and the big problem of template consume. The utility model provides a prefabricated plate is the one-way board, the prefabricated plate includes: a prefabricated plate body; the concrete members are arranged on the precast slab body at intervals in parallel, the length direction of each concrete member is vertical to or parallel to the length direction of the precast slab body, one part of the concrete member is fixed in the precast slab body, and the other part of the concrete member protrudes out of the upper surface of the precast slab body. The utility model discloses a prefabricated plate is used for the construction.

Description

Prefabricated slab

Technical Field

The utility model relates to a building technical field especially relates to a prefabricated plate.

Background

The prefabricated slab is a floor slab used in the early buildings in the 20 th century and is a module or a plate used in the building engineering. The precast slabs are called precast slabs because they are produced, processed and formed in a precast yard to form concrete precast members, and then transported to a construction site for installation.

When the precast slab is manufactured, a hollow model is firstly nailed by wood boards, reinforcing steel bars are distributed on the hollow part of the model, then concrete is poured, after the concrete is solidified, the wood boards are knocked off, and the residual precast slab is the precast slab. Precast slabs are used in many applications in construction, such as cement slabs covered in ditches beside highways; the cement boards used as heat insulation layers on the roof are prefabricated boards.

In the process of stress and force transmission of the prefabricated plate, the ratio of the long side dimension to the short side dimension of the prefabricated plate determines the stress condition of the prefabricated plate, so that the prefabricated plate is divided into a unidirectional plate and a bidirectional plate. The unidirectional sheets are those in which the preformed sheets are supported on both sides, i.e., the load is transmitted mainly by the bending (and shearing) action in the lengthwise or widthwise direction of the preformed sheets.

When the existing precast slab is manufactured, a steel bar net layer is arranged in a mould, one end of a truss rib is fixedly connected with the steel bar net layer, concrete is poured on the upper surface and the lower surface of the steel bar net layer poured by the concrete to form the precast slab, wherein the part of the truss rib close to the steel bar net layer is positioned in the precast slab, and the part of the truss rib far away from the steel bar net layer is positioned outside the precast slab. During construction, the precast slabs are spliced with the whole floor slab by taking the bearing wall as a support, wood molds are built around the spliced precast slabs, then concrete is poured on the top surfaces of the precast slabs to form a concrete cast-in-place layer, the concrete cast-in-place layer wraps part of truss ribs outside the precast slabs, and the truss ribs are used for connecting the precast slabs and the cast-in-place layer to form a laminated floor slab.

However, in the construction process, the precast slabs are spliced together by using the bearing wall as a support, then when a concrete cast-in-place layer is poured above the precast slabs, the bearing wall can only support two ends of the precast slabs, and the middle of the precast slabs is not supported, so that full support needs to be carried out below the precast slabs, namely, the formwork supports are densely arranged according to a certain interval to support the precast slabs, wood molds are built on the periphery of the spliced precast slabs, concrete is integrally poured in the wood molds to form the concrete cast-in-place layer, the formwork supports are dismantled after the concrete cast-in-place layer reaches the strength, and the formworks and the supports need to be built before the construction, so that the construction site is disordered; after the construction is finished, the formwork support needs to be dismantled, so that the construction efficiency is low, and the formwork loss is large.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a preparation method and construction method of prefabricated plate, prefabricated plate for solve the current prefabricated plate in the work progress job site confusion, the efficiency of construction is low, and the big problem of template consume.

In order to achieve the above object, the embodiments of the present invention adopt the following schemes:

in a first aspect, embodiments of the present invention provide a prefabricated panel, the prefabricated panel is a one-way plate, the prefabricated panel includes: a prefabricated plate body; the concrete members are arranged on the precast slab body at intervals in parallel, the length direction of each concrete member is vertical to or parallel to the length direction of the precast slab body, one part of the concrete member is fixed in the precast slab body, and the other part of the concrete member protrudes out of the upper surface of the precast slab body.

The embodiment of the utility model provides a concrete member in prefabricated plate is made through concrete (concrete) material, compare and make the truss muscle by reinforced bar material in prior art, the intensity of concrete member is higher relatively, make the intensity of prefabricated plate obtain improving, consequently at building site job site afterwards, only need with the atress limit of above-mentioned prefabricated plate (on the prefabricated plate body with two perpendicular sides of length direction of each other of concrete member) place on the bearing wall can, thereby need not to set up the mould support in the below of prefabricated plate and be used for supporting the prefabricated plate, template and support have been left out and have been built, and the step of demolising template and support, and then solved the job site confusion, the efficiency of construction is low, the big problem of template consume.

In some embodiments of the present invention, the concrete member has a long hole, the long hole is perpendicular to the length direction of the concrete member, and the bottom surface of the long hole is flush with the upper surface of the precast slab body.

In some embodiments of the present invention, the method further comprises: and one part of the hanging piece is positioned in the prefabricated plate body, and the other part of the hanging piece extends to the outside of the upper surface of the prefabricated plate body.

In some embodiments of the present invention, the method further comprises: the reinforcing steel bar net layer is arranged in parallel with the upper surface of the precast slab body and is positioned in the precast slab body, the concrete member is arranged on the reinforcing steel bar net layer, and the hanging piece comprises: the fixing part is fixedly connected with the reinforcing steel bar mesh layer; the hanging part is fixedly connected with the fixed part, and one side of the hanging part, which is far away from the fixed part, extends to the outside of the upper surface of the prefabricated plate body.

In some embodiments of the present invention, the concrete member is located at a height H in the precast slab body₁Satisfies the following conditions: (3/10) H.ltoreq.H₁H is less than or equal to (1/2), wherein H is the total height of the concrete member.

In some embodiments of the present invention, the elongated hole is plural, and the plural elongated holes are provided at intervals along a length direction of the concrete member.

In some embodiments of the present invention, if the length direction of the concrete member is parallel to the length direction of the precast slab body, the short side of the precast slab is a stressed side, and the distance L between the central axes of the concrete members is two adjacent to the stressed side_jcThe value range is as follows: 200 mm-500 mm.

In some embodiments of the present invention, if the length direction of the concrete member is perpendicular to the length direction of the precast slab body, the long side of the precast slab is a stressed side, and the distance L between the central axes of the concrete members is two adjacent to the stressed side_jdThe value range is as follows: 200 mm-600 mm.

In some embodiments of the present invention, the concrete members include a plurality of first concrete members, and the end of each of the first concrete members is close to the side of the concrete member on the precast slabInterval L between_dThe value range of (A) is 100 mm-300 mm.

In some embodiments of the present invention, the plurality of concrete members further include a plurality of second concrete members, and one second concrete member is disposed between two adjacent first concrete members.

In a second aspect, an embodiment of the present invention further provides a method for manufacturing a prefabricated slab, in which a steel mesh layer is placed in a hollow mold; fixing one side of a hanging piece on the reinforced concrete net layer, and placing a plurality of concrete members on the reinforced concrete net layer in parallel at intervals, wherein the length directions of the concrete members are parallel to or vertical to the side plates of the hollow mould; pouring concrete into the hollow mold; and (5) after the concrete is solidified, demolding to obtain the precast slab.

The precast slab of the utility model is manufactured by placing concrete members above a steel bar mesh layer, wherein the length directions of the concrete members are parallel or perpendicular to the side plates of the hollow mould, namely the length directions of the concrete members are perpendicular or parallel to the length direction of the precast slab manufactured by the hollow mould, furthermore, the concrete members are made of concrete (concrete) materials, and because a part of the concrete members are positioned in the precast slab, compared with the precast slab manufactured by truss ribs, the strength of the precast slab manufactured by the concrete members is higher, at the subsequent construction site, only the stressed edges (two side edges which are mutually perpendicular to the length direction of the concrete members on the precast slab) manufactured by the manufacturing method are required to be placed on a bearing wall, the mould and the bracket do not need to be supported below the precast slab, thereby omitting the building of the template and the bracket, and the steps of dismantling the template and the bracket solve the problems of disordered construction site, low construction efficiency and large template loss.

In a third aspect, an embodiment of the present invention further provides a stacking method for prefabricated panels, including the following steps: a plurality of prefabricated plates are vertically arranged and transversely stacked on a supporting goods shelf in sequence.

The embodiment of the utility model provides a still provide a method of stacking of prefabricated plate, when can avoiding the prefabricated plate level to stack, the problem of fracture takes place easily to with the prefabricated plate is vertical to stack, the area that needs to occupy when can also practicing thrift the prefabricated plate and stack, improved the utilization ratio of stacking the place.

In a fourth aspect, the embodiment of the present invention further provides a construction method of a prefabricated slab, including the following steps: placing two side edges of the precast slabs, which are vertical to the length direction of the concrete member, on a bearing wall of a building respectively for splicing; building a fixed mould around the spliced precast slabs; pouring concrete into the mould to form a concrete cast-in-place layer; and (5) after the concrete is solidified, demolding to obtain the laminated floor slab.

The embodiment of the utility model provides a prefabricated plate is when the construction, places the assigned position at the bearing wall with prefabricated plate hoist and mount earlier, directly places respectively on the bearing wall of building with two length direction vertically sides of concrete member on the polylith prefabricated plate, carries out the concatenation of every layer floor to build the wooden model around the prefabricated plate that splices well. The prefabricated slab provided with the concrete members has higher strength, so that concrete can be integrally poured on the top surface of the spliced prefabricated slab without full support below the prefabricated slab to form a concrete cast-in-place layer, the steps of building a template and a support and removing the template and the support are omitted, the problems of disordered construction site, low construction efficiency and large template loss are solved, and finally, after the concrete is solidified, the laminated floor slab can be obtained by demoulding.

In some embodiments of the present invention, before the step of pouring concrete into the mold, the method further comprises: and respectively placing a plurality of support negative ribs on two opposite precast slabs which are lapped on the same bearing wall, wherein each support negative rib is positioned between two adjacent concrete members on the precast slabs.

In some embodiments of the present invention, if there is a gap between adjacent prefabricated slabs in the assembled plurality of prefabricated slabs in a direction perpendicular to the bearing wall, before the step of pouring concrete into the mold, the method further includes: and carrying out mould hanging construction on a gap between adjacent prefabricated plates in a direction vertical to the bearing wall.

Drawings

Fig. 1 is a three-dimensional structure diagram of a prefabricated slab in the embodiment of the present invention;

FIG. 2 is a schematic structural view of a concrete member according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a prefabricated panel in an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of section A-A in FIG. 3;

FIG. 5 is an enlarged view of the portion P of FIG. 4;

FIG. 6 is a schematic structural view of section B-B of FIG. 3;

FIG. 7 is a top view of the prefabricated panel of FIG. 1;

FIG. 8 is a schematic view of section C-C of FIG. 7;

FIG. 9 is a schematic structural view of section E-E of FIG. 7;

FIG. 10 is a schematic view of the structure of section F-F in FIG. 7;

FIG. 11 is a schematic view of section D-D of FIG. 7;

FIG. 12 is a schematic structural view of another placement of concrete structures in the embodiment of the present invention;

FIG. 13 is a schematic view of the structure of section G-G in FIG. 12;

FIG. 14 is a schematic structural view of section H-H in FIG. 12;

fig. 15 is a schematic diagram illustrating stacking of precast slabs according to an embodiment of the present invention;

FIG. 16 is a schematic diagram illustrating transportation of prefabricated panels in an embodiment of the present invention;

fig. 17 is a schematic view of hoisting a precast slab in the embodiment of the present invention;

FIG. 18 is a schematic structural view of the embodiment of the present invention, in which a negative support rib is disposed above the precast slab;

FIG. 19 is a schematic view of the L-L section of FIG. 18;

FIG. 20 is a schematic structural view of a negative rib of a support in an embodiment of the present invention;

FIG. 21 is a schematic view of a structure of the embodiment of the present invention after the prefabricated panels are assembled;

fig. 22 is a second schematic view of the structure of the prefabricated panels after being assembled according to the embodiment of the present invention.

Reference numerals:

1-precast slab body; 2-concrete member; 21-elongated holes; 22-a first concrete element; 23-a second concrete element; 3-hanging a connecting piece; 31-a stationary part; 32-hanging part; 33-a bending part; 4-a reinforcing mesh layer; 5-L-shaped supporting goods shelves; 51-ribs; 6-transportation goods shelves; 7-support negative ribs; 110-concrete cast-in-place layer; 200-load bearing wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

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 present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the prefabricated plate provided by the embodiment of the present invention is a one-way plate, and the prefabricated plate includes: a prefabricated plate body 1; the concrete members 2 are in a long-strip-shaped structure, the concrete members 2 are arranged on the precast slab body 1 at intervals in parallel, the length direction of each concrete member 2 is vertical or parallel to the length direction of the precast slab body 1, one part of each concrete member 2 is fixed in the precast slab body 1, and the other part of each concrete member 2 protrudes out of the upper surface of the precast slab body 1.

The embodiment of the utility model provides a concrete member 2 in the prefabricated plate is made through concrete (concrete) material, compare in prior art and make the truss muscle by reinforced bar material, concrete member 2's intensity is higher relatively, make the intensity of prefabricated plate obtain improving, consequently at building site job site afterwards, only need with the atress limit of above-mentioned prefabricated plate (on the prefabricated plate body 1 with two perpendicular sides of length direction of each other of concrete member 2) place on the bearing wall can, thereby need not to set up the mould support in the below of prefabricated plate and be used for supporting the prefabricated plate, template and support have been left out to build, and the step of demolising template and support, and then solved the job site confusion, the efficiency of construction is low, the big problem of template consume.

In some embodiments of the present invention, the concrete member 2 is provided with the elongated holes 21, the opening direction of the elongated holes 21 is perpendicular to the length direction of the concrete member 2, and the bottom surfaces of the elongated holes 21 are flush with the upper surface of the prefabricated slab body 1, as shown in fig. 1 and 2. In the construction process, after the precast slabs with the concrete members 2 are spliced, concrete is poured on the upper surfaces of the precast slabs to form a concrete cast-in-place layer, the concrete cast-in-place layer is connected with the precast slab body 1 through the concrete members 2, and the long holes 21 formed in the concrete members 2 can increase the engaging force between the concrete cast-in-place layer and the precast slab body 1, so that the anti-seismic performance of the laminated floor slab manufactured by the precast slabs is improved.

In some embodiments of the present invention, the prefabricated panel further comprises: and the hanging and connecting piece 3, wherein one part of the hanging and connecting piece 3 is positioned in the precast slab body 1, and the other part of the hanging and connecting piece 3 extends to the outside of the upper surface of the precast slab body 1. The embodiment of the present invention provides a hanging member 3 having the other end extending to the outside of the upper surface of the prefabricated panel body 1, or extending the other end of the hanging member 3 to the outside of the side surface of the prefabricated panel body 1. Compared with the latter solution, the connecting member in the former solution is extended upward, so that it is not necessary to provide a corresponding relief portion in the manufacturing mold of the prefabricated slab, which facilitates the manufacturing of the mold, and at the same time facilitates the removal of the prefabricated slab from the manufacturing mold of the prefabricated slab through the hanging member 3, so as to achieve the effect of demolding.

Furthermore, if will the embodiment of the utility model provides an above-mentioned prefabricated plate is when transporting to construction site from prefabricated factory, is favorable to hanging the prefabricated plate on the hoist through above-mentioned articulate piece 3, is convenient for the hoist and mount and the transportation of prefabricated plate.

In some embodiments of the present invention, the prefabricated panel further comprises: the reinforcing steel bar net layer 4, the reinforcing steel bar net layer 4 and the upper surface parallel arrangement of prefabricated plate body 1, and be located the prefabricated plate body 1, concrete member 2 sets up on the reinforcing steel bar net layer 4, and wherein, the connector 3 includes: the fixing part 31, the fixing part 31 is fixedly connected with the reinforcing mesh layer 4; and the hanging part 32 is fixedly connected with the fixed part 31, and one side of the hanging part 32 far away from the fixed part 31 extends to the outside of the upper surface of the prefabricated plate body 1, as shown in figures 1, 3, 4 and 5. Compare in direct will hang union piece 3 and place in the mould, solidify the scheme that makes it be fixed in prefabricated plate body 1 through the concrete, the embodiment of the utility model provides a fixed part 31 in the scheme that will hang union piece 3 is fixed on reinforcing bar stratum reticulare 4, can avoid hanging the in-process of union piece 3 at hoist and mount to drop for be connected safe and reliable more between union piece 3 and the prefabricated plate body 1.

Based on the above embodiment, the fixing portion 31 is disposed in parallel with the reinforcing mesh layer 4, so that the concrete member 2 can be simultaneously placed on the fixing portion 31 and the reinforcing mesh layer 4, as shown in fig. 5.

The hanging piece 3 is made of metal material, and the metal material is deformed by an external tool, so that the hanging piece 3 is approximately L-shaped. The fixing portion 31 and the hanging portion 32 are in arc transition to form a bent portion 33, so that the hanging portion 32 made of metal material can be prevented from being broken at the bent portion 33.

In some embodiments of the present invention, the concrete member 2 is located at a height H within the prefabricated panel body 1₁Satisfies the following conditions: (3/10) H.ltoreq.H₁H ≦ (1/2), wherein H is the total height of the concrete member 2, as shown in fig. 5. If the concrete member 2 is positioned at the height H in the precast slab body 1₁If the height is less than (3/10) H, the depth of the concrete member 2 embedded in the precast slab body 1 is too shallow, which is not beneficial to improving the strength of the precast slab; if the concrete member 2 is positioned at the height H in the precast slab body 1₁> (1/2) H, i.e., the distance between the reinforcement mesh layer 4 and the lower surface of the prefabricated panel body 1 is too short, and the distance between the reinforcement mesh layer 4 and the upper surface of the prefabricated panel body 1 is too long, the stress in the thickness direction of the prefabricated panel body 1 is not uniform, which is not favorable for ensuring the stress performance of the prefabricated panel.

In some embodiments of the present invention, the mesh reinforcement layer 4 does not have ribs at the ends of the prefabricated panel body 1, as shown in fig. 3.

The end of the prefabricated slab in the prior art is ribbed, so that the prefabricated slab is complex to operate and consumes more time in the construction process. Meanwhile, because the prefabricated plates are different in size, reinforcing steel bars need to be embedded at different positions of the prefabricated plates according to the stress requirements of the prefabricated plates, holes need to be formed in the positions, corresponding to the embedded reinforcing steel bars of the prefabricated plates, of the dies in the prefabricating process of the prefabricated plates, the dies with the holes are arranged in the holes, the prefabricated plates with the corresponding sizes can only be produced, the repeated utilization rate of the dies is low, the cost of the dies is increased, and the design and processing periods of the dies are long. However, the utility model discloses need not to set up on the mould and dodge the hole to can allow the reinforcing bar to stretch out the preparation mould of prefabricated plate, can reduce mould cost of manufacture and mould design, preparation cycle from this, increase the reuse rate of mould.

In some embodiments of the present invention, in order to further increase the engaging force between the precast slab body 1 and the cast-in-place concrete layer and further increase the anti-seismic performance of the laminated floor slab made of the precast slabs, so that the precast slabs 100 after splicing can achieve the equivalent cast-in-place effect, the plurality of strip holes 21 are provided at intervals along the length direction of the concrete member 2, as shown in fig. 2.

Referring to fig. 6, in some embodiments of the present invention, the distance L between the central axes of two adjacent elongated holes 21_kAnd are equal, thereby making the stress conditions of the respective regions in the prefabricated panel 100 relatively uniform.

In some embodiments of the present invention, the distance L between the central axes of two adjacent elongated holes 21_kThe value range of (A): 400 mm-800 mm, if the distance between two adjacent elongated holes 21 is too large, it is not beneficial to improve the earthquake-resistant performance of the laminated floor slab made by the above precast slab, and if the distance between two adjacent elongated holes 21 is too large, the number of required molds is large when the concrete member 2 is made, and the making efficiency of the concrete member 2 is relatively low.

In some embodiments of the present invention, if the length direction of the concrete members 2 is parallel to the length direction of the prefabricated panel body 1, the short side of the prefabricated panel body 1 is a stressed side, and the distance L between the central axes of two adjacent concrete members 2 is the same as the distance L between the central axes of the two adjacent concrete members 2_jcThe value range is as follows: 200 mm-500 mm. If the distance is set to be excessively small, the number of the concrete structural members 2 is large, which results in an increase in the weight of the prefabricated panels, making it difficult to transport and hoist the prefabricated panels, and if the distance is set to be excessively large, the load-bearing performance of the prefabricated panels and the proper strength of the prefabricated panels cannot be ensured, as shown in fig. 7 to 11.

Similarly, if the length direction of the concrete members 2 is perpendicular to the length direction of the precast slab body 1, the long side of the precast slab 100 is a stressed side, and the distance L between the central axes of two adjacent concrete members 2 is the same as the distance L between the central axes of the two adjacent concrete members 2_jdThe value range is as follows: 200mm to 600mm, as shown in FIG. 12.

In some embodiments of the present invention, the plurality of concrete elements 2 comprises a plurality of first concrete elements 22, a first concrete elementThe distance L between the end of the concrete member 22 and the side edge of the precast slab body 1 close to the concrete member 2_dThe value of (A) is in the range of 100mm to 300mm, as shown in FIG. 7 and FIG. 9. Because the concrete member 2 and the precast slab body 1 have manufacturing errors during manufacturing, if the lengths of the concrete member 2 and the precast slab body are equal, the concrete member 2 may be oversized and cannot be placed in a manufacturing mold of the precast slab, so that a proper distance L exists between the end of the concrete member 2 and the side edge of the precast slab close to the end_dOn the basis of ensuring that the concrete member 2 can be placed in a manufacturing mould of the precast slab, the stress performance of the precast slab can be ensured.

In order to further reinforce the strength of the prefabricated panel 100, the plurality of concrete elements 2 further include a plurality of second concrete elements 23, and one second concrete element 23 is disposed between each adjacent two first concrete elements 22, as shown in fig. 7.

In some embodiments of the present invention, the length L of the first concrete element 22₁Comprises the following steps: l is₁＝L-(2×L_d) As shown in fig. 9; length L of second concrete element 23₂Satisfies the following conditions: (1/3) L.ltoreq.L₂L ≦ (1/2), shown in FIG. 10. The length of the second concrete element 23 is shorter than the length of the first concrete element 22. If the length of the second concrete member 23 is too short, it cannot play a role in reinforcing the strength of the prefabricated panel 100, and if the length of the second concrete member 23 is too long, it causes the weight of the prefabricated panel to be too heavy at the prefabrication stage, resulting in difficulty in transportation and hoisting of the prefabricated panel.

Of course, the length of the second concrete element 23 and the length of the first concrete element 22 may be made equal.

It should be noted that: referring to FIGS. 7, 9 and 10, if the short side of the prefabricated panel body 1 is placed on the load-bearing wall 200, the short side of the prefabricated panel body 1 is a force-receiving side. Similarly, referring to fig. 12 to 14, if the long side of the prefabricated panel body 1 is placed on the load-bearing wall 200, the long side of the prefabricated panel body 1 is the force-receiving side. Wherein, the length direction of the concrete member 2 is vertical to the stressed edge of the precast slab body 1. Wherein, the bearing wall 200 may also be a bearing beam.

The above-described pitch will be specifically described below with reference to specific embodiments.

Referring to fig. 7 and 11, the concrete member 2 of the embodiment of the present invention has a length direction parallel to the length direction of the prefabricated panel body 1, i.e., the short side of the prefabricated panel body 1 is the force-receiving side, i.e., the force-receiving direction of the prefabricated panel body 1 is the length direction of the prefabricated panel body 1 (i.e., X in fig. 7)₁Direction), the non-force-receiving direction of the prefabricated panel body 1 is the width direction of the prefabricated panel body 1 (i.e., Y in fig. 7)₁Direction). At this time, the distance L between two adjacent first concrete members 22_jc1A second concrete member 23 is arranged at the middle position between two adjacent first concrete members 22, and the distance L between the first concrete member 22 and the second concrete member 23 close to the first concrete member 22 is 500mm_jc2Is 250mm, namely the distance between two adjacent concrete members 2 is 250 mm.

Referring to fig. 12, in the embodiment of the present invention, the length direction of the concrete member 2 is perpendicular to the length direction of the precast slab body 1, and the long side of the precast slab body 1 is the stressed side, i.e. the stressed direction of the precast slab body 1 is the width direction of the precast slab body 1 (i.e. Y in fig. 12)₂Direction), the non-force-receiving direction of the prefabricated panel body 1 is the length direction of the prefabricated panel body 1 (i.e., X in fig. 12)₂Direction). Because the span of the stressed edge of the precast slab body 1 is short, the distance between two adjacent concrete members 2 can be set to be slightly longer, so that the distance L between two adjacent concrete members 2_jdIs 600 mm.

In some embodiments of the present invention, the side surface and the upper surface of the prefabricated panel are rough surfaces, wherein the depth of the rough surface is not less than 4mm, so as to increase the engaging force between the prefabricated panel body 1 and the cast-in-place concrete layer.

In some embodiments of the present invention, if the length direction of the concrete member 2 is identical to the length direction of the prefabricated panel body 1, the concrete member 2 is placed between the center and the length direction of the prefabricated panel body 1, that is, the distance between the left end of the concrete member 2 and the left side of the prefabricated panel body 1 is equal to the distance between the right end of the concrete member 2 and the right side of the prefabricated panel body 1, as shown in fig. 7 and 9.

Similarly, if the length direction of the concrete structural member 2 coincides with the width direction of the precast slab body 1, the concrete structural member 2 is placed centrally along the width direction of the precast slab body 1, as shown in fig. 12.

The embodiment of the utility model provides a method for manufacturing prefabricated plate is still provided, including following step: placing the reinforcing mesh layer in the hollow mould; fixing one side of the hanging piece on the reinforced concrete net layer, and placing a plurality of concrete members on the reinforced concrete net layer in parallel at intervals, wherein the length directions of the concrete members are parallel or vertical to the side plate of the hollow mould; pouring concrete into the hollow mold; and (5) after the concrete is solidified, demolding to obtain the precast slab.

In the embodiment of the present invention, when the precast slab is manufactured, the concrete members are placed above the steel bar mesh layer, and the length directions of the concrete members are parallel or perpendicular to the side plates of the hollow mold, that is, the length directions of the concrete members are perpendicular or parallel to the length direction of the precast slab manufactured by the hollow mold, furthermore, the concrete members are made of concrete (concrete) material, and since a part of the concrete members are located in the precast slab, compared with the precast slab manufactured by truss ribs, the strength of the precast slab manufactured by the concrete members is higher, at the subsequent construction site, only the stressed edges (two side edges perpendicular to the length direction of the concrete members on the precast slab body) of the precast slab manufactured by the manufacturing method need to be placed on the bearing wall, and there is no need to support the mold and the support below the precast slab, thereby omitting the construction of the template and the support, and the steps of dismantling the template and the bracket solve the problems of disordered construction site, low construction efficiency and large template loss.

The embodiment of the utility model provides a prefabricated plate's stacking method is still provided, including following step: a plurality of prefabricated plates are vertically arranged and transversely stacked on a supporting goods shelf in sequence.

The embodiment of the utility model provides a stacking method of prefabricated plate can avoid the prefabricated plate level when stacking, takes place the problem of fracture easily to with the vertical stacking of prefabricated plate, the area that needs to occupy when can also practicing thrift the prefabricated plate and stack has improved the utilization ratio of stacking the place.

Referring to fig. 15, the utility model discloses a prefabricated plate 100 is stacking the in-process, place the L type that is used for prefabricated plate 100 to stack on the subaerial horizontal L type support goods shelves 5 earlier, L type supports goods shelves 5 and includes rib 51, rib 51 slope sets up, and with two lateral part fixed connection of L type goods shelves, lean on the lower surface of prefabricated plate 100 to put on the L type support goods shelves 5 one side of keeping away from rib 51 afterwards, prefabricated plate 100 stacks one by one along stacking the direction (the direction that the arrow in fig. 15 indicates), in order to realize the vertical stacking of prefabricated plate 100, thereby the area of ground that occupies when having practiced thrift prefabricated plate 100 greatly, and the problem of easy fracture when having avoided the prefabricated plate 100 level to stack, and above-mentioned stacking method easily realizes.

In order to make the stacking of the prefabricated panels 100 safer and more reliable, the height of the side of the L-shaped supporting frame 5 for supporting the prefabricated panels 100, which is the vertical distance between the top and bottom ends of the vertical portion of the L-shaped supporting frame 5 in fig. 15, is greater than one-half of the total height of the prefabricated panels 100 when the prefabricated panels 100 are vertically placed, i.e., the length of the long side of the prefabricated panels 100 when they are horizontally placed.

The utility model also provides a transportation method of prefabricated plate 100, because the tip of above-mentioned prefabricated plate 100 does not go out the muscle, therefore above-mentioned prefabricated plate 100 can vertical transportation, in the transportation of prefabricated plate 100, is provided with the transportation goods shelves 6 that are used for the transportation of prefabricated plate 100 in the bottom of freight train earlier, vertically places prefabricated plate 100 in transportation goods shelves 6 afterwards to realize the vertical transportation of prefabricated plate 100, the easy problem that splits when having avoided prefabricated plate 100 level to place. In addition, since the prefabricated panels 100 cannot generally exceed six layers when horizontally placed, the transportation efficiency of the prefabricated panels 100 is low, and if the prefabricated panels 100 are vertically placed, the area of the prefabricated panels 100 occupying the bottom of the truck is greatly reduced, so that more prefabricated panels 100 can be loaded at one time by truck transportation, thereby improving the transportation efficiency of the prefabricated panels 100, as shown in fig. 16.

The utility model also provides a prefabricated plate 100's hoist and mount method, the embodiment of the utility model provides a link member 3 has a plurality ofly, and a plurality of link members 3 all set up on prefabricated plate body 1's upper surface, and be close to the long limit setting of prefabricated plate 100, and above-mentioned setting can make prefabricated plate 100 hoist through long limit through hoist 300 in-process of hoist and mount, and prefabricated plate 100's minor face is unsettled, realizes the vertical hoist and mount of prefabricated plate from this to make polylith prefabricated plate 100 hoist and mount simultaneously, and can not bump between the polylith prefabricated plate 100, as shown in fig. 1 and 17.

Further, in order to ensure that the force applied to the hanging pieces 3 on the prefabricated plate body 1 is uniform in the process of hoisting the prefabricated plate 100, two hanging pieces 3 are arranged near the long side of the prefabricated plate body 1, and the two hanging pieces 3 are symmetrically distributed relative to the center line of the long side of the prefabricated plate body 1.

The embodiment of the utility model provides a construction method of prefabricated plate is still provided, including following step: placing two side edges of the precast slabs, which are vertical to the length direction of the concrete member 2, on a bearing wall 200 of a building respectively for splicing; building a fixed mould around the spliced precast slabs; pouring concrete into the mold to form a concrete cast-in-place layer 110; and (3) after the concrete is solidified, demolding to obtain the laminated floor slab, as shown in figures 18-20.

In some embodiments of the present invention, the ratio of the thickness of the laminated floor slab (i.e., the sum of the thickness of the prefabricated slab 100 and the thickness of the cast-in-place concrete layer) to the span of the prefabricated slab 100 (i.e., the length of the prefabricated slab 100) is (1/30) - (1/35), so that the prefabricated slab 100 can have better stress performance.

The embodiment of the utility model provides a prefabricated plate is when the construction, places the assigned position at bearing wall 200 with prefabricated plate hoist and mount earlier, directly places on the bearing wall 200 of building respectively with two length direction vertically sides of concrete member 2 on the polylith prefabricated plate 100, carries out the concatenation of every layer floor to build the wood pattern around the prefabricated plate 100 that splices well. Because the strength of the precast slab 100 provided with the concrete member 2 is high, concrete can be integrally poured on the top surface of the spliced precast slab 100 without full support below the precast slab 100 to form a concrete cast-in-place layer 110, so that the steps of building and removing a template and a support are omitted, the problems of disordered construction site, low construction efficiency and large template loss are solved, and finally, after the concrete is solidified, the laminated floor can be obtained by demoulding.

In some embodiments of the present invention, before the step of pouring concrete into the mold, the method further comprises: the plurality of support negative ribs 7 are respectively placed on the two opposite precast slabs 100 which are lapped on the same bearing wall 200, each support negative rib 7 is positioned between two adjacent concrete members 2 on the precast slabs 100, and the support negative ribs 7 can play a role in connecting the concrete cast-in-place layer 110 which is lapped on the same bearing wall 200 and is arranged above the two opposite precast slabs 100, so that the stress of the concrete cast-in-place layer 110 is uniform, the stress performance of the concrete cast-in-place layer 110 is improved, and the stress performance of the laminated floor is further improved.

In some embodiments of the present invention, before the step of pouring concrete into the mold, the method further comprises: the electric wire pipe is arranged in the long hole 21 of the concrete member 2 above the precast slab body 1 in a penetrating way, and the long hole 21 is also beneficial to the penetrating way of the electric wire pipe.

If the long sides of two adjacent prefabricated panel bodies 1 after splicing are attached to each other, as shown in fig. 21. For example, the width of a house roof is 3.0 meters, the width of each prefabricated plate body 1 is 1.5 meters, two prefabricated plate bodies 1 are laid on the house roof, long edges of the adjacent prefabricated plate bodies 1 are attached to each other, and at the moment, a fixing mold is directly built around the spliced prefabricated plates 100; pouring concrete into the mold to form a concrete cast-in-place layer 110; and demolding after the concrete is solidified to obtain the laminated floor slab.

If a gap exists between the long sides of two adjacent prefabricated panel bodies 1 after splicing, as shown in FIG. 22. For example, if the width of a house roof is 3.2 m and the width of the prefabricated panel bodies 1 is 1.5m, and two prefabricated panel bodies 1 are laid on the house roof, a gap of 0.2m exists between the long sides of the adjacent prefabricated panel bodies 1, and at this time, the cast-in-place concrete layer 110 needs to be poured in the gap so that the long sides of the adjacent prefabricated panel bodies 1 are attached to each other.

Therefore, if there is a gap between the side edges of adjacent prefabricated panels 100 in the assembled prefabricated panels 100 (i.e., the prefabricated panel body 1) in the direction perpendicular to the load-bearing wall 200, before the step of pouring concrete into the mold, the method further comprises: the formwork hanging construction is performed on the gaps between the side edges of the adjacent prefabricated slabs 100 in the plurality of prefabricated slabs 100 in the direction perpendicular to the bearing wall 200, and because the concrete pouring amount required at the gaps is relatively small, the formwork hanging construction is performed at the gaps, a bracket does not need to be arranged below the gaps, and the cost is low.

The utility model discloses an in some embodiments, above-mentioned reinforcing bar stratum reticulare 4 and support negative reinforcement 7 are overall structure, consequently need not the bar worker at prefabrication factory and job site and carry out the ligature with the reinforcing bar in order to form the reinforcing bar stratum reticulare, have avoided prefabrication factory and job site confusion, have still improved prefabricated plate 100's production efficiency simultaneously to and the preparation efficiency of coincide floor, and then improved the building efficiency in house.

The reinforcing steel bar net layer 4 and the support negative bars 7 can be made into corresponding specifications by reinforcing steel bar manufacturers, and then are transported to a prefabricating factory and a construction site for direct use.

In some embodiments of the present invention, the thickness of the steel mesh layer 4 and the support negative bar 7 is greater than or equal to 15mm, so as to ensure the stress performance of the prefabricated panels 100 and the laminated floor slabs manufactured by the prefabricated panels 100.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A prefabricated panel, characterized in that it is a unidirectional panel, comprising:

a prefabricated plate body;

the concrete members are arranged on the precast slab body at intervals in parallel, the length direction of each concrete member is vertical to or parallel to the length direction of the precast slab body, one part of the concrete member is fixed in the precast slab body, and the other part of the concrete member protrudes out of the upper surface of the precast slab body.

2. The precast slab of claim 1, wherein the concrete member is provided with a long hole, the long hole is formed in a direction perpendicular to the length direction of the concrete member, and the bottom surface of the long hole is flush with the upper surface of the precast slab body.

3. The prefabricated panel according to claim 1 or 2, further comprising:

and one part of the hanging piece is positioned in the prefabricated plate body, and the other part of the hanging piece extends to the outside of the upper surface of the prefabricated plate body.

4. The prefabricated panel of claim 3, further comprising:

the reinforcing steel bar net layer is arranged in parallel with the upper surface of the precast slab body and is positioned in the precast slab body, the concrete member is arranged on the reinforcing steel bar net layer, and the hanging piece comprises:

the fixing part is fixedly connected with the reinforcing steel bar mesh layer;

the hanging part is fixedly connected with the fixed part, and one side of the hanging part, which is far away from the fixed part, extends to the outside of the upper surface of the prefabricated plate body.

5. The precast slab according to claim 1, 2 or 4, wherein the concrete member is located at a height H within the precast slab body₁Satisfies the following conditions: (3/10) H.ltoreq.H₁H is less than or equal to (1/2), wherein H is the total weight of the concrete memberHeight.

6. The prefabricated panel of claim 4, wherein the reinforcing steel bar net layer is not ribbed at the panel end of the prefabricated panel body.

7. The precast slab of claim 2, wherein the elongated holes are formed in plural numbers, and the plural elongated holes are provided at intervals in a length direction of the concrete structural member.

8. The precast slab of claim 1, wherein if the length direction of the concrete structural members is parallel to the length direction of the precast slab body, the short side of the precast slab is a stressed side, and the distance L between the central axes of two adjacent concrete structural members is the distance L between the central axes of the two adjacent concrete structural members_jcThe value range is as follows: 200 mm-500 mm.

9. The precast slab of claim 7, wherein the plurality of concrete elements includes a plurality of first concrete elements, and a distance L between an end of the first concrete element and a side of the precast slab adjacent to the concrete elements_dThe value range of (A) is 100 mm-300 mm.

10. The precast panel according to claim 9, wherein said plurality of concrete elements further comprises a plurality of second concrete elements, one of said second concrete elements being disposed between each adjacent two of said first concrete elements.