CN210049486U

CN210049486U - Concrete precast beam

Info

Publication number: CN210049486U
Application number: CN201920631124.8U
Authority: CN
Inventors: 常斯嘉; 汪宇瞳; 顾赛捷
Original assignee: Zhongjiao Junpu Construction Technology (shanghai) Co Ltd
Current assignee: Zhongjiao Junpu Construction Technology (shanghai) Co Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-02-11
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a precast concrete beam belongs to the building field, and it includes the roof beam body, has pour the many reinforcing bars that set up along the extending direction of the roof beam body in the roof beam body, the internal extending direction along the roof beam body of roof beam has seted up perpendicular cross-section and is triangle-shaped's cavity one, is provided with a plurality of triangle-shaped's backup pads in the cavity one, and the three lateral wall butt of backup pad is on the three lateral wall of cavity, the utility model discloses have the effect that reduces the gravity of the roof beam body self, be convenient for transport.

Description

Concrete precast beam

Technical Field

The utility model belongs to the technical field of the building and specifically relates to a precast concrete roof beam is related to.

Background

The precast beam is prefabricated in a factory and then is transported to a construction site to be installed and fixed according to the position required by the design.

The beam is a member which bears vertical load and mainly bends. The beams are generally horizontally disposed to support the panels and to bear various vertical loads from the panels and the deadweight of the beams, which together form the floor and roof structure of the building. Compared with other transverse stressed structures (such as trusses, arches and the like), the beam has poorer stress performance, but is simple to analyze and convenient to manufacture, so that the beam is still widely applied to small and medium-span buildings. The beam is subjected to mainly bending moment and shearing force during loading, and sometimes also to torque.

Therefore, in order to increase the supporting force of the existing precast concrete beam to the top plate, the beam is generally poured by solid concrete, but the solid concrete not only wastes materials, but also has larger self gravity and is inconvenient to transport.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precast concrete roof beam has seted up the cavity in the roof beam body, is provided with the backup pad that is used for supporting the cavity in the cavity, not only can reduce the use of concrete, can also reduce the gravity of the roof beam body self, the transportation of being convenient for.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a precast concrete beam, includes the roof beam body, and the internal reinforcing bar that has poured many along the extending direction setting of the roof beam body of roof beam, the internal extending direction who follows the roof beam body of roof beam has seted up vertical cross-section and is triangle-shaped's cavity one, is provided with a plurality of backup pads that are triangle-shaped in the cavity one, and the three lateral wall butt of backup pad is on the three lateral wall of cavity.

Through adopting above-mentioned scheme, set up cavity one in the roof beam body, the vertical cross-section of cavity one is triangle-shaped, is provided with the backup pad of the three lateral wall butt of three edge and cavity one in the cavity one of triangle-shaped, has stability according to triangle-shaped, and cavity one can reduce the use of concrete, and the backup pad plays the supporting role to the roof beam body, does not influence the bearing capacity of the roof beam body, not only saves the concrete, can also reduce the gravity of the roof beam body self, the transportation of being convenient for.

The utility model discloses further set up to: a cavity II with the same structure as the cavity I is arranged in the beam body, and a supporting plate is also arranged in the cavity II.

Through adopting above-mentioned scheme, cavity two can be when the preparation roof beam body more save the concrete to make the weight of the roof beam body lighter, be convenient for transport.

The utility model discloses further set up to: a reinforcing rod is arranged on the supporting plate.

Through adopting above-mentioned scheme, the bracing piece can be strengthened the support to the backup pad, prevents that the backup pad from taking place deformation because of the too big gravity that bears.

The utility model discloses further set up to: a hoisting hole is formed in the middle of one side of the beam body, and a threaded sleeve is poured in the hoisting hole.

Through adopting above-mentioned scheme, when hoisting the roof beam body, make hoist and mount piece and the internal threaded sleeve threaded connection of roof beam, can be fixed with the roof beam body and hoist and mount piece, be convenient for to the hoist and mount of roof beam body.

The utility model discloses further set up to: and the top of the beam body positioned in the hoisting hole is provided with a chamfer.

Through adopting above-mentioned scheme, when will hoist and mount piece and threaded sleeve fixed, the chamfer can be convenient for hoist and mount the piece and enter into in the threaded sleeve to be convenient for fixed with hoist and mount piece and threaded sleeve.

The utility model discloses further set up to: and hoisting grooves are symmetrically formed in two ends of the beam body, which are positioned on the same side of the hoisting hole, and hoisting columns which are horizontally arranged in the axial direction are fixedly arranged in the hoisting grooves.

By adopting the scheme, when the beam body is hoisted, the hoisting piece sequentially passes through the hoisting columns at the two ends of the beam body, so that the hoisting piece is more stable in the hoisting process.

The utility model discloses further set up to: and angle steels are fixedly arranged at four edges of the beam body along the extending direction of the beam body.

By adopting the scheme, the edges of the beam body are easy to collide with external objects in the transportation and hoisting processes of the beam body, so that the edges of the beam body are abraded, and the edges of the beam body can be protected from abrasion by the angle steel.

The utility model discloses further set up to: and a plurality of connecting columns are uniformly and fixedly arranged on the side wall of the angle steel close to the beam body.

Through adopting above-mentioned scheme, when pouring, the spliced pole on the angle steel can be pour in the roof beam body to it is more stable to make angle steel and roof beam body coupling.

To sum up, the utility model discloses following beneficial effect has:

1. the first cavity can reduce the use of concrete, the supporting plate plays a supporting role on the beam body, the bearing capacity of the beam body is not influenced, not only is concrete saved, but also the gravity of the beam body can be reduced, and the transportation is convenient;

2. the second cavity with the same structure as the first cavity is arranged in the beam body, so that concrete can be saved during the manufacturing of the beam body, the beam body is lighter in weight, and the transportation is facilitated;

3. through four edges department at the roof beam body along its extending direction have set firmly the angle steel, evenly set firmly a plurality of spliced poles on the lateral wall that the angle steel is close to the roof beam body, the spliced pole can be pour in the roof beam body, makes angle steel and roof beam body coupling more stable, and the angle steel can prevent to the wearing and tearing of the roof beam body when transporting and hoist.

Drawings

FIG. 1 is an isometric view of an embodiment;

FIG. 2 is a schematic view showing the connection between the reinforcing plate and the reinforcing bars;

FIG. 3 is a sectional view of the embodiment;

fig. 4 is a schematic structural view of angle iron.

In the figure, 1, a beam body; 11. reinforcing steel bars; 12. hoisting holes; 13. a threaded sleeve; 14. chamfering; 15. hoisting the groove; 151. hoisting the column; 16. angle steel; 161. connecting columns; 2. a first cavity; 3. a second cavity; 31. a support plate; 311. a reinforcing rod.

Detailed Description

A precast concrete beam, see fig. 1 and 2, comprises a beam body 1, wherein the beam body 1 is formed by pouring concrete, a plurality of reinforcing steel bars 11 are poured in the beam body 1 along the length direction of the beam body, and the reinforcing steel bars 11 can be connected with the concrete, so that the tensile resistance of the beam body 1 can be increased, and the beam body 1 is prevented from being broken; two vertical cross sections of the first cavity 2 and the second cavity 3 which are triangular are arranged in the beam body 1 along the length direction of the beam body, the vertical cross sections of the first cavity 2 and the second cavity 3 are symmetrically arranged relative to the diagonal of the vertical cross section of the end part of the beam body 1, a plurality of triangular supporting plates 31 with the same structure are arranged in the first cavity 2 and the second cavity 3, the supporting plates 31 are uniformly arranged along the length direction of the beam body 1, three corners of the supporting plates 31 are fixedly arranged on the reinforcing steel bars 11, three edges of the supporting plates 31 abut against three inner side walls of the first cavity 2 and the second cavity 3, the supporting of the supporting plates 31 on the beam body 1 is strengthened, and the beam body 1 is prevented. Set firmly a stiffener 311 on the backup pad 31, the one end of stiffener 311 sets firmly in the longer one end of backup pad 31, and other end fixed connection is in the junction on shorter both sides, and the support to backup pad 31 can be strengthened to stiffener 311, prevents that backup pad 31 from taking place deformation.

Referring to fig. 3, a hoisting hole 12 is formed in the middle of one side of the beam body 1, a vertically arranged threaded sleeve 13 is fixedly arranged in the hoisting hole 12, when the beam body 1 is installed, the beam body 1 is convenient to hoist, a chamfer 14 is formed at the top of the beam body 1 in the hoisting hole 12, and a hoisting piece can conveniently enter the threaded sleeve 13 through the chamfer 14; the both ends that the roof beam body 1 is located 12 homonymies of hole for hoist are provided with hoist and mount groove 15, and hoist and mount groove 15 symmetry sets up in the both sides of roof beam body 1, and a hoisting post 151 has set firmly in hoist and mount groove 15, and the axial level of hoisting post 151 sets up, and hoisting post 151 is convenient for be connected with hoist and mount piece, makes hoist and mount piece and roof beam body 1's middle part be connected, is connected with the hoisting post 151 at the both ends of roof beam body 1 again, makes roof beam body 1 more stable at the in-process of hoist and mount.

Referring to fig. 3 and 4, four edges that roof beam body 1 set up along its length direction department have set firmly angle steel 16, and angle steel 16 can reduce the hoist and mount in-process, the wearing and tearing between edge department and the external object of roof beam body 1, and angle steel 16's inner wall evenly sets firmly many spliced poles 161 along its length direction, and spliced pole 161 is pour in roof beam body 1, and angle steel 16 and roof beam body 1's connection can be strengthened to spliced pole 161, and angle steel 16 drops from roof beam body 1.

The use principle is as follows: when pouring, the triangular support plates 31 are uniformly and fixedly arranged along the length direction of the steel bars 11, then mortar is poured into the mold, and the connecting columns 161 of the angle steels 16 are poured into the beam body 1; during hoisting, the connecting pieces which are subjected to dropping and loading are sequentially in threaded connection with the threaded sleeves 13, and two ends of each hoisting piece penetrate through the connecting columns 161 in the hoisting grooves 15 at two ends of the beam body 1, so that the beam body 1 can be hoisted more stably.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a precast concrete beam, includes the roof beam body (1), pours many reinforcing bars (11) that set up along the extending direction of the roof beam body (1) in the roof beam body (1), its characterized in that:

a first cavity (2) with a triangular vertical section is formed in the beam body (1) along the extending direction of the beam body (1), a plurality of triangular supporting plates (31) are arranged in the first cavity (2), and three side walls of the supporting plates (31) are abutted to three side walls of the cavity.

2. The precast concrete beam according to claim 1, wherein: a cavity II (3) with the same structure as the cavity I (2) is arranged in the beam body (1), and a supporting plate (31) is also arranged in the cavity II (3).

3. The precast concrete beam according to claim 2, wherein: the supporting plate (31) is provided with a reinforcing rod (311).

4. The precast concrete beam according to claim 1, wherein: the middle part of one side of the beam body (1) is provided with a hoisting hole (12), and a threaded sleeve (13) is poured in the hoisting hole (12).

5. The precast concrete beam according to claim 4, wherein: and the top of the beam body (1) positioned in the hoisting hole (12) is provided with a chamfer (14).

6. The precast concrete beam according to claim 4, wherein: the two ends of the beam body (1) which are positioned at the same side of the hoisting hole (12) are symmetrically provided with hoisting grooves (15), and hoisting columns (151) which are horizontally arranged in the axial direction are fixedly arranged in the hoisting grooves (15).

7. The precast concrete beam according to claim 1, wherein: the four edges of the beam body (1) along the extending direction are fixedly provided with angle steels (16).

8. The precast concrete beam according to claim 7, wherein: and a plurality of connecting columns (161) are uniformly and fixedly arranged on the side wall of the angle steel (16) close to the beam body (1).