CN216713584U

CN216713584U - Prefabricated bottom plate for combined beam

Info

Publication number: CN216713584U
Application number: CN202220182007.XU
Authority: CN
Inventors: 张树辉; 张波; 孙滢雪; 刘赛; 阚大彤; 王志辉
Original assignee: Shandong Wanda Technology Co ltd
Current assignee: Shandong Wanda Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-10
Anticipated expiration: 2032-01-24

Abstract

The prefabricated bottom plate comprises a bottom plate, wherein a first reinforcing rib is arranged in the bottom plate, the first reinforcing rib is arranged along the length direction of the bottom plate, a reinforcing body is arranged on the top surface of the bottom plate, the reinforcing body is arranged along the length direction of the bottom plate, a plurality of vertical ribs are arranged on two sides of the top surface of the bottom plate, and the reinforcing body is located between the vertical ribs on two sides. The utility model provides a prefabricated bottom plate that combination beam used, sets up perpendicular muscle through the both sides position on the bottom plate, comes to carry on spacingly to the steel reinforcement cage, can effectively avoid the removal dislocation of steel reinforcement cage among the pouring process, guarantees the pouring quality of combination beam, still installs the truss on the bottom plate simultaneously, and the framework that can not only act as the combination beam with setting up of perpendicular muscle can also strengthen the connection performance between the concrete of bottom plate and pouring, further strengthens combination beam's intensity.

Description

Prefabricated bottom plate for combined beam

Technical Field

The utility model relates to the technical field of building beams, in particular to a prefabricated bottom plate used for a combined beam.

Background

The composite beam is a transverse bearing member in which a steel beam and a concrete slab are connected into a whole through a shear connector and are stressed together, can fully exert the advantages of high tensile strength of steel and good compression resistance of concrete, and has the advantages of high bearing capacity, high rigidity, good anti-seismic and dynamic performances, small section size of the member, convenience in construction and the like. The existing composite beam is mostly manufactured by placing a reinforcement cage on a template and then pouring concrete to obtain the composite beam, but the reinforcement cage is not positioned in the pouring process, so that the condition of movement and dislocation of the reinforcement cage is easy to occur, and the manufacturing quality of the composite beam is influenced to a great extent.

Disclosure of Invention

The utility model aims to provide a prefabricated bottom plate used for a combined beam, which limits a reinforcement cage by arranging vertical ribs at two side positions on the bottom plate, avoids the movement dislocation of the reinforcement cage in the pouring process and solves the problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the prefabricated bottom plate for the combined beam comprises a bottom plate, wherein a first reinforcing rib is arranged in the bottom plate, the first reinforcing rib is arranged along the length direction of the bottom plate, a reinforcing body is arranged on the top surface of the bottom plate, the reinforcing body is arranged along the length direction of the bottom plate, a plurality of vertical ribs which are vertically arranged are arranged on two sides of the top surface of the bottom plate, the reinforcing body is positioned between the vertical ribs on the two sides, and the vertical ribs are arranged along the length direction of the bottom plate. The reinforcement members are trusses. The reinforcement is a convex rib on the bottom plate, the convex rib is arranged along the length direction of the bottom plate, and a second reinforcing rib and a reinforcing steel bar cage are arranged inside the convex rib. The both sides of bottom plate top surface all are equipped with the boss, and perpendicular muscle is located the boss upside, and the thickness of both sides boss all is greater than the thickness in the middle of the bottom plate. The vertical ribs at the corresponding positions on the two sides of the bottom plate are the same, and the bottoms of the two vertical ribs at the corresponding positions are positioned in the bottom plate and connected. And the upper ends of the vertical ribs are provided with elbows bent towards the truss direction. The first reinforcing rib is a prestressed reinforcement. And at least two trusses are arranged on the top surface of the bottom plate. The truss comprises a truss upper chord arranged along the length direction of the bottom plate, and two rows of truss web ribs are arranged between the truss upper chord and the bottom plate. The upper chord of the truss is a square tube. The upper chord of the truss is a circular tube. The truss upper chord is a channel steel. The height that highly all is higher than the fin of the perpendicular muscle of both sides is equipped with a plurality of U type stirrup of arranging along length direction on the fin, and U type stirrup sets up with perpendicular muscle one-to-one, installs first splice bar between the corresponding perpendicular muscle of both sides, and the second splice bar is installed to U type stirrup upside.

The utility model has the positive effects that: according to the prefabricated bottom plate used for the combined beam, the vertical ribs are arranged on the two sides of the bottom plate to limit the steel reinforcement cage, so that the steel reinforcement cage can be effectively prevented from moving and dislocating in the pouring process, the pouring quality of the combined beam is guaranteed, meanwhile, the bottom plate is also provided with the truss, the truss and the vertical ribs can serve as a framework of the combined beam, the connection performance between the bottom plate and poured concrete can be enhanced, and the strength of the combined beam is further enhanced.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic end view of a prefabricated base plate;

FIG. 3 is a schematic structural view of four sets of trusses disposed on a base plate;

FIG. 4 is a schematic structural diagram of a truss with an upper chord being a circular tube;

FIG. 5 is a structural schematic diagram of a truss with an upper chord being a channel steel;

FIG. 6 is a schematic structural view of the base plate with bosses on both sides;

FIG. 7 is a schematic view showing that bosses are provided on both sides of the base plate and the reinforcement members are of another structure;

FIG. 8 is a schematic view of a structure in which the reinforcement members are ribs;

FIG. 9 is a schematic structural view of a composite beam made with ribs as the reinforcement members;

FIG. 10 is a schematic structural view of a heightened U-shaped rib arranged on a bottom plate;

fig. 11 is a schematic structural view of the raised U-shaped ribs and the connecting ribs provided on the bottom plate.

Detailed Description

The prefabricated bottom plate for the composite beam comprises a bottom plate 1, wherein the bottom plate 1 can be an existing concrete slab, a first reinforcing rib 2 is arranged in the bottom plate 1, and the first reinforcing rib 2 is arranged along the length direction of the bottom plate 1 and used for ensuring the strength of the bottom plate 1, as shown in fig. 1 and 2. Be equipped with the reinforcement on the top surface of bottom plate 1, the reinforcement is arranged along the length direction of bottom plate 1, all installs the perpendicular muscle 6 of a plurality of vertical settings in the both sides of bottom plate 1 top surface, and the reinforcement is located between the perpendicular muscle 6 of both sides, perpendicular muscle 6 is arranged along the length direction of bottom plate 1.

When the composite beam is manufactured, the reinforcement cage is placed between the vertical ribs 6 on the two sides, so that the movement dislocation of the reinforcement cage can be effectively avoided when concrete is poured, and the pouring quality of the composite beam is further ensured.

Furthermore, in order to ensure the connection strength of the vertical ribs 6 on the two sides of the bottom plate 1, the vertical ribs 6 at the corresponding positions on the two sides of the bottom plate 1 are the same, the bottoms of the vertical ribs 6 at the corresponding positions are positioned in the bottom plate 1 and connected with each other, and the connection strength of the vertical ribs 6 on the two sides of the bottom plate 1 is effectively enhanced.

Further, erect the upper end of muscle 6 and all be equipped with the elbow 7 of buckling to 3 directions of truss, can be connected through the splice bar between two elbows 7 of corresponding position, the splice bar is located 3 upsides of truss, and the joint strength of both sides perpendicular muscle 6 has not only been strengthened in the setting of splice bar, can also be connected with the steel reinforcement cage, and it is spacing to form the high position to the steel reinforcement cage, and the steel reinforcement cage phenomenon of floating appears when preventing concrete placement, and then guarantees the preparation quality of whole combination beam.

Further, in order to ensure the strength and the deformation resistance of the bottom plate 1, the first reinforcing ribs 2 are prestressed reinforcing ribs. Further, the reinforcing body is a truss 3, at least two trusses 3 are arranged on the top surface of the bottom plate 1, as shown in fig. 2, in embodiment 1, two trusses 3 are arranged on the bottom plate 1, as shown in fig. 3, in embodiment 2, four trusses 3 are arranged on the bottom plate 1, and different numbers of trusses 3 can be placed on the top surface of the bottom plate 1 according to the manufacturing requirements.

Further, the truss 3 includes a truss upper chord 5 arranged along the length direction of the bottom plate 1, two rows of truss web ribs 4 are arranged between the truss upper chord 5 and the bottom plate 1, the truss web ribs 4 are fixedly connected with the bottom plate 1, and the truss upper chord 5 may be a square pipe as shown in fig. 2, a round pipe as shown in fig. 4, or a channel steel as shown in fig. 5. As shown in fig. 7, the truss upper chord 5 can also be an i-beam, and the truss web 4 can be a steel bar, an angle steel or various steel profiles. The web bars 4 at the ends of the truss may be arranged vertically to improve the strength and stability of the overall structure when the truss is installed in an overlapping manner.

Furthermore, the reinforcement is a convex rib 8 on the bottom plate 1, and the convex rib 8 can play a role in strengthening the rigidity of the prefabricated bottom plate and improving the bearing capacity of the prefabricated bottom plate. As shown in fig. 8, the protruding rib 8 is arranged along the length direction of the bottom plate 1, the second reinforcing rib 9 and the reinforcing cage 10 are installed inside the protruding rib 8, when the prefabricated bottom plate with the protruding rib 8 is used for manufacturing the composite beam, as shown in fig. 9, the reinforcing cage needs to be placed on the bottom plate 1 between the protruding rib 8 and the vertical rib 6, that is, one reinforcing cage is placed on each of the two sides of the protruding rib 8. Wherein in first strengthening rib 2 can stretch into the steel reinforcement cage, further strengthen the joint strength of steel reinforcement cage and prefabricated plate, the first strengthening rib 2 that stretches into in the steel reinforcement cage is the beard muscle, and the beard muscle can be the reinforcing bar, also can be the steel strand wires that have certain compliance and deformability, or the steel strand wires of prestressing force have been applyed to on placing bottom plate 1 with the prefabricated plate, avoid the beard muscle to produce with the steel reinforcement cage and interfere.

Further, as shown in fig. 6, bosses 11 are arranged on both sides of the top surface of the bottom plate 1, the vertical ribs 6 are located on the upper sides of the bosses 11, and the thickness of the bosses 11 on both sides is greater than that of the middle of the bottom plate 1. Wherein boss 11 is additional strengthening, can improve the rigidity and the bearing capacity of prefabricated bottom plate, can also adjust the height of truss board placed on it through the thickness of constructing boss 11 in addition to subsequent construction is convenient for. The height of the boss 11 is adjustable, when the boss 11 is high, the height difference between the beam and the floor slab is relatively large, when the boss 11 is low, the height difference between the beam and the floor slab is relatively small, and the height of the boss 11 can be adjusted as required according to actual construction requirements.

Further, when the prefabricated bottom plate is used for manufacturing a floor, in order to increase the height of the floor and ensure the bearing performance of the truss plate, as shown in fig. 10, the heights of the vertical ribs 6 on the two sides are all higher than the height of the convex rib 8, a plurality of U-shaped stirrups 12 arranged along the length direction of the convex rib 8 are arranged on the convex rib 8, the U-shaped stirrups 12 and the vertical ribs 6 are arranged in a one-to-one correspondence manner and are all higher than the convex rib 8 by a certain distance, as shown in fig. 11, in the subsequent installation process, first connecting ribs 13 can be installed between the corresponding vertical ribs 6 on the two sides, and second connecting ribs 14 are installed on the upper sides of the U-shaped stirrups 12, so that the strength of the floor can be ensured during the subsequent concrete pouring.

The technical solution of the present invention is not limited to the scope of the embodiments of the present invention. The technical contents not described in detail in the utility model are all known technologies.

Claims

1. The utility model provides a prefabricated bottom plate that combination beam used which characterized in that: including bottom plate (1), be equipped with first strengthening rib (2) in bottom plate (1), the length direction of bottom plate (1) is arranged along first strengthening rib (2), is equipped with the reinforcement on the top surface of bottom plate (1), and the reinforcement arranges along the length direction of bottom plate (1), all installs perpendicular muscle (6) of a plurality of vertical settings in the both sides of bottom plate (1) top surface, and the reinforcement lies in between perpendicular muscle (6) of both sides, perpendicular muscle (6) are arranged along the length direction of bottom plate (1).

2. The prefabricated floor panel for a composite girder according to claim 1, wherein: the reinforcement is a truss (3).

3. The prefabricated floor panel for a composite girder according to claim 1, wherein: the reinforcement is convex rib (8) on bottom plate (1), and convex rib (8) are arranged along the length direction of bottom plate (1), have second strengthening rib (9) and reinforcing bar cage (10) at convex rib (8) internally mounted.

4. The prefabricated floor panel for a composite girder according to claim 1, wherein: bosses (11) are arranged on two sides of the top surface of the bottom plate (1), the vertical ribs (6) are located on the upper sides of the bosses (11), and the thickness of the bosses (11) on the two sides is larger than that of the middle of the bottom plate (1).

5. The prefabricated floor panel for a composite girder according to claim 1, wherein: the vertical ribs (6) at the corresponding positions on the two sides of the bottom plate (1) are the same, and the bottoms of the two vertical ribs (6) at the corresponding positions are positioned in the bottom plate (1) and connected.

6. The prefabricated floor panel for a composite girder according to claim 1, wherein: the upper ends of the vertical ribs (6) are provided with elbows (7) which are bent towards the truss (3).

7. The prefabricated floor panel for a composite girder according to claim 1, wherein: the first reinforcing rib (2) is a prestressed reinforcement.

8. The prefabricated floor panel for a composite girder according to claim 2, wherein: the top surface of the bottom plate (1) is provided with at least two trusses (3).

9. The prefabricated floor panel for a composite girder according to claim 2, wherein: the truss (3) comprises a truss upper chord (5) arranged along the length direction of the bottom plate (1), and two rows of truss web ribs (4) are arranged between the truss upper chord (5) and the bottom plate (1).

10. The prefabricated floor panel for a composite girder according to claim 9, wherein: the truss upper chord (5) is a square tube.

11. The prefabricated floor panel for a composite girder according to claim 9, wherein: the truss upper chord (5) is a circular tube.

12. The prefabricated floor panel for a composite girder according to claim 9, wherein: the truss upper chord (5) is a channel steel.

13. The prefabricated floor panel for a composite girder according to claim 3, wherein: the height that highly all is higher than fin (8) of the perpendicular muscle (6) of both sides is equipped with a plurality of U type stirrup (12) of arranging along length direction on fin (8), and U type stirrup (12) set up with erecting muscle (6) one-to-one, install first splice bar (13) between the corresponding perpendicular muscle (6) of both sides, and second splice bar (14) are installed to U type stirrup (12) upside.