阅读说明：本技术 一种装配式免拆楼承板 (Assembly type disassembly-free floor bearing plate ) 是由 李斌 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种装配式免拆楼承板,属于装配式建筑技术领域,楼承板由上部的钢筋桁架和下部的免拆底层浇筑一体,钢筋桁架包括呈三角形分布的上纵筋和下纵筋,上纵筋和下纵筋通过斜向连接筋连接,斜向连接筋由交替设置的上弯折部和下弯折部组成,上弯折部呈倾斜设置,下弯折部呈水平设置,下弯折部浇筑在免拆底层内；本发明提供的一种装配式免拆楼承板,可以使以受弯为主的楼板一次浇筑成型,施工过程不需设置后浇带,避免了楼板开裂的风险；具有施工速度快,质量有保障,与传统工艺比较更加经济等优点,且便于运输和吊装。(The invention discloses an assembly type disassembly-free floor bearing plate, which belongs to the technical field of assembly type buildings, wherein the floor bearing plate is cast integrally by a steel bar truss at the upper part and a disassembly-free bottom layer at the lower part, the steel bar truss comprises an upper longitudinal bar and a lower longitudinal bar which are distributed in a triangular manner, the upper longitudinal bar and the lower longitudinal bar are connected through an oblique connecting bar, the oblique connecting bar consists of an upper bent part and a lower bent part which are alternately arranged, the upper bent part is obliquely arranged, the lower bent part is horizontally arranged, and the lower bent part is cast in the disassembly-free bottom layer; the assembly type disassembly-free floor bearing plate provided by the invention can be used for casting and forming a floor slab mainly subjected to bending at one time, a post-cast strip is not required to be arranged in the construction process, and the risk of cracking of the floor slab is avoided; the construction method has the advantages of high construction speed, guaranteed quality, more economical efficiency compared with the traditional process, convenience in transportation and hoisting, and the like.)

1. The utility model provides a floor carrier plate is exempted from to tear open to assembled which characterized in that: the floor bearing plate is cast integrally by a steel bar truss (1) at the upper part and a disassembly-free bottom layer (2) at the lower part; the steel bar truss (1) comprises an upper longitudinal bar (11) and a lower longitudinal bar (12) which are distributed in a triangular shape, and the upper longitudinal bar (11) and the lower longitudinal bar (12) are connected through an oblique connecting bar (13); the oblique connecting rib (13) consists of upper bending parts (131) and lower bending parts (132) which are alternately arranged; go up kink (131) and be the slope setting, lower kink (132) are the level setting, and lower kink (132) are pour in exempting from to tear open bottom (2).

2. The fabricated disassembly-free floor deck of claim 1, wherein: go up and indulge muscle (11) and indulge muscle (12) parallel arrangement down, indulge the quantity of muscle (12) down and be twice of indulging muscle (11) quantity on, indulge muscle (11) and indulge muscle (12) diameter the same or different down on.

3. The fabricated disassembly-free floor deck of claim 1, wherein: the oblique connecting ribs (13) are bent reinforcing steel bars formed by cold bending, and the diameters of the oblique connecting ribs (13) are smaller than those of the upper longitudinal ribs (11) or the lower longitudinal ribs (12).

4. The fabricated disassembly-free floor deck of claim 1, wherein: go up kink (131) top one side and indulge muscle (11) welded connection on, go up kink (131) bottom one side and indulge muscle (12) welded connection down, go up and indulge muscle (11) and indulge muscle (12) down and be located the planar both sides in kink (131).

5. The fabricated disassembly-free floor deck of claim 1, wherein: the plane of the lower bending part (132) and the plane of the upper bending part (131) form an included angle of 120 degrees.

6. The fabricated disassembly-free floor deck of claim 1, wherein: the thickness of the non-dismantling bottom layer (2) is 15-20 mm.

7. The fabricated disassembly-free floor deck of claim 1, wherein: the height between the upper surface of the disassembly-free bottom layer (2) and the lower longitudinal rib (12) is 10 mm.

8. The fabricated disassembly-free floor deck of claim 1, wherein: go up the welding of the top of indulging muscle (11) and have a plurality of horizontal muscle (14) rather than perpendicular setting, a plurality of horizontal muscle (14) are equidistant setting.

9. The fabricated disassembly-free floor deck of claim 8, wherein: the diameter of the transverse rib (14) is larger than that of the upper longitudinal rib (11) or the lower longitudinal rib (12).

Technical Field

The invention relates to a floor support plate, in particular to an assembly type disassembly-free floor support plate, and belongs to the technical field of assembly type buildings.

Background

At present, the most common floor member applied to fabricated buildings is a concrete laminated slab. The concrete composite slab is an integral floor slab formed by laminating precast concrete slabs and post-cast reinforced concrete on site. The construction sequence of the concrete composite slab is as follows: and (3) mounting the precast concrete slab in place, laying related pipelines, binding top stressed steel bars on site, and pouring superposed layer concrete on the precast slab. The laminated plate stress model is firstly a 'plate', and is a typical stress component mainly subjected to bending.

The existing concrete laminated slab has the following defects:

1. the stress layer of the laminated slab is divided into a prefabricated layer and a superposed layer, the prefabricated layer and the superposed layer need to be poured twice, the superposed surface between the prefabricated layer and the superposed layer needs to be strictly treated during secondary pouring, and the integral performance after superposition is difficult to ensure; the joint of the laminated slab is easy to crack in the pouring and stress processes;

2. after the prefabricated layer of the laminated slab is installed in place, reinforcing steel bars need to be bound in the open air on a construction site manually, so that the construction speed is low, the efficiency is low, and the working environment is poor;

3. the prefabricated layer is heavy, inconvenient to transport and hoist and easy to damage;

4. according to the current standard, a post-cast strip is reserved between the prefabricated plates, and after the steel bars are laid, the prefabricated plates are cast together with concrete on the plates, so that a film must be supported at the bottom between every two plates, which is very troublesome.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

Aiming at the defects in the background technology, the invention provides the assembly type disassembly-free floor bearing plate, which can be used for casting and forming a floor slab mainly subjected to bending at one time, a post-cast strip is not required to be arranged in the construction process, and the risk of cracking of the floor slab is avoided; the construction method has the advantages of high construction speed, guaranteed quality, more economical efficiency compared with the traditional process, convenience in transportation and hoisting, and the like.

In order to solve the technical problems, the invention adopts the following technical scheme:

an assembly type disassembly-free floor bearing plate is characterized in that a steel bar truss at the upper part and a disassembly-free bottom layer at the lower part are poured into a whole; the steel bar truss comprises an upper longitudinal bar and a lower longitudinal bar which are distributed in a triangular shape, and the upper longitudinal bar and the lower longitudinal bar are connected through an oblique connecting bar; the oblique connecting rib consists of an upper bending part and a lower bending part which are alternately arranged; go up the kink and be the slope setting, lower kink is the level setting, and lower kink is pour in exempting from to tear open the bottom layer.

Further, go up to indulge the muscle and indulge muscle parallel arrangement down, indulge the quantity of muscle down and be twice of indulging the muscle quantity on, indulge the muscle on with indulge the muscle diameter down the same or different.

Furthermore, the oblique connecting ribs are bending reinforcing steel bars formed by cold bending, and the diameter of the oblique connecting ribs is smaller than that of the upper longitudinal ribs or the lower longitudinal ribs.

Further, go up kink top one side and indulge muscle welded connection on, go up kink bottom one side and indulge muscle welded connection down, go up indulge the muscle and indulge the muscle down and be located the planar both sides in kink place.

Furthermore, the plane of the lower bending part and the plane of the upper bending part form an included angle of 120 degrees;

further, the thickness of the non-dismantling bottom layer is 15-20 mm.

Further, the height between the upper surface of the disassembly-free bottom layer and the lower longitudinal rib is 10 mm.

Furthermore, go up the welding of the top of indulging the muscle and have rather than a plurality of horizontal muscle of perpendicular setting, a plurality of horizontal muscle are equidistant setting.

Further, the diameter of the transverse rib is larger than that of the upper longitudinal rib or the lower longitudinal rib.

After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:

the disassembly-free floor bearing plate can be produced by an automatic production line, compared with a precast concrete composite slab, 2/3 is reduced by production workers, the weight of a disassembly-free bottom layer is only 1/6 of that of a precast concrete slab, the transportation and construction are convenient, and the production and installation labor cost is low;

the disassembly-free bottom layer only plays a role of a template before the reinforced concrete stress layer is poured, and does not participate in structural stress calculation; the space steel bar truss structure system consists of the upper longitudinal bars, the lower longitudinal bars, the oblique connecting bars and the transverse bars, the space steel bar truss structure system and the disassembly-free bottom layer form a template system before concrete pouring, the template system bears the self weight and the construction load of the concrete, and the space steel bar truss structure system and the concrete form a reinforced concrete cast-in-place floor after the concrete pouring;

the invention can make the floor slab mainly bent cast and formed at one time, and no post-cast strip is needed in the construction process, thereby avoiding the risk of cracking the floor slab; the construction method has the advantages of high construction speed, guaranteed quality, more economical efficiency compared with the traditional process, convenience in transportation and hoisting, and the like.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

fig. 4 is an enlarged view at M in fig. 3.

In the figure, 1-a steel bar truss, 11-an upper longitudinal bar, 12-a lower longitudinal bar, 13-an oblique connecting bar, 131-an upper bending part, 132-a lower bending part, 14-a transverse bar and 2-a disassembly-free bottom layer.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

As shown in fig. 1-4, the invention provides an assembly type disassembly-free floor support plate, which is formed by pouring an upper steel bar truss 1 and a lower disassembly-free bottom layer 2 into a whole to form a template system before concrete pouring, and the template system bears the self weight and the construction load of concrete.

The steel bar truss 1 comprises a plurality of upper longitudinal bars 11 and lower longitudinal bars 12 which are distributed in a triangular mode.

Go up and indulge muscle 11 and indulge muscle 12 parallel arrangement down, indulge the quantity of muscle 12 down and be twice of the muscle 11 quantity of indulging on, indulge muscle 11 and indulge muscle 12 diameter the same or different down on.

The upper longitudinal rib 11 and the lower longitudinal rib 12 are connected through an oblique connecting rib 13; the oblique connecting ribs 13 are bent reinforcing steel bars formed by cold bending, and the diameter of the oblique connecting ribs 13 is smaller than that of the upper longitudinal ribs 11 or the lower longitudinal ribs 12.

The diagonal connecting rib 13 is composed of upper bent portions 131 and lower bent portions 132 which are alternately arranged.

Go up kink 131 and be the slope setting, go up kink 131 top one side and last muscle 11 welded connection that indulges, go up kink 131 bottom one side and indulge muscle 12 welded connection down, go up indulge muscle 11 and indulge muscle 12 down and be located the planar both sides in kink 131 place.

The lower bending part 132 is horizontally arranged, and the plane where the lower bending part 132 is located and the plane where the upper bending part 131 is located form an included angle of 120 degrees; the lower bent portion 132 is cast in the non-dismantling bottom layer 2.

The thickness of the disassembly-free bottom layer 2 is 15-20mm, and the height between the upper surface of the disassembly-free bottom layer 2 and the lower longitudinal rib 12 is 10 mm.

The disassembly-free bottom layer 2 is made of special mortar, polypropylene fibers are contained in the disassembly-free bottom layer 2, the disassembly-free bottom layer 2 serves as a template before concrete pouring, and structural stress calculation is not involved.

Go up the welding of the top of indulging muscle 11 and have rather than a plurality of horizontal muscle 14 of perpendicular setting, a plurality of horizontal muscle 14 are equidistant setting. The diameter of the transverse rib 14 is larger than that of the upper longitudinal rib 11 or the lower longitudinal rib 12.

The specific working principle of the invention is as follows:

firstly, carrying out factory assembly welding forming on the steel bar truss 1: welding an upper longitudinal bar 11, a lower longitudinal bar 12, an oblique connecting bar 13 and a transverse bar 14 into a whole;

then pouring and forming the pouring disassembly-free bottom layer 2: coating a separant inside a building membrane shell, pouring a certain amount of mixed special mortar into the membrane shell with a designed size, placing the finished steel bar truss 1 therein, embedding the lower bent part 132 of the inclined connecting rib 13 into the special mortar layer, and curing and forming the bottom layer 2 without dismantling;

the steel bar truss 1 and the disassembly-free bottom layer 2 are transported out of a factory, then integrally lifted to the position of a building in construction and installed in place, and finally ordinary concrete is poured above the disassembly-free bottom layer 2.

The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.