Concrete prefabricated part

Abstract

The utility model relates to a concrete prefabricated part which comprises prefabricated part bodies, a plurality of parallel secondary beams are erected between every two adjacent prefabricated part bodies, and every two secondary beams on the same straight line on the two sides of each prefabricated part body are detachably and fixedly connected. The cross section of the prefabricated part body is in a U shape, a U-shaped groove used for being filled with concrete is formed in the prefabricated part body, and after the U-shaped groove is filled with the concrete, the prefabricated part body forms a main beam. The advantages of prefabricated components and concrete components are integrated, the occupied space of a construction site is small, only hoisting operation is involved in the process of installing the primary beam and the secondary beam, follow-up main beam steel bar binding and floor steel bar binding work and safety construction management work are carried out after the steel bar truss floor support plate is installed, and potential safety hazard points are relatively few.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a concrete precast member. Background Art

[0002] In the construction of existing industrial warehouses and factories, the structure of the roof more often uses a steel structure roof, which can meet the use and reduce the construction cost at the same time. In traditional construction, a large number of materials are used on site for erecting the formwork, and the safety and civilization management is relatively difficult. There are relatively many edge openings, and the safety belts are used more frequently during the construction process of workers.

[0003] In the existing technology, for the cast-in-place beams of concrete frames with a relatively high existing floor height (more than 8 meters), more often scaffolding construction is adopted. For the construction of such beams where only the main beams are cast-in-place concrete beams and the secondary beams are steel structure beams, the cost of erecting the scaffolding is relatively high. At the same time, to meet the specification requirements for the erection of the scaffolding, the erection width is correspondingly increased, resulting in the construction measure cost being much greater than the material cost. The increase in the construction cost of the measures indirectly increases the construction cost of the engineering project. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a concrete precast member, which combines the advantages of precast components and concrete components, occupies less space at the construction site, and only involves hoisting operations during the installation of the main and secondary beams. After the installation of the steel bar truss floor slab, the subsequent binding of the main beam steel bars and the floor steel bars is carried out, and the safety construction management work has relatively few potential safety hazards.

[0005] The above-mentioned utility model purpose of the utility model is achieved through the following technical solutions:

[0006] A concrete precast member includes a precast member body, and a plurality of mutually parallel secondary beams are arranged between two adjacent precast member bodies, and the two secondary beams on the same straight line on both sides of the precast member body are detachably and fixedly connected.

[0007] As a further technical solution of the utility model: the cross-section of the precast member body is U-shaped, and a U-shaped groove for filling concrete is opened on the precast member body. After the U-shaped groove is filled with concrete, the precast member body forms a main beam.

[0008] As a further technical solution of the utility model: the precast member body includes precast concrete, and a plurality of steel strands and a plurality of steel bars are arranged in the precast concrete.

[0009] As a further technical solution of the utility model: the two secondary beams on the same straight line on both sides of the precast member body are connected by a plurality of tension bolts.

[0010] As a further technical solution of the utility model: Three secondary beams which are parallel to each other and have the same spacing are arranged between two adjacent prefabricated component bodies.

[0011] As a further technical solution of the utility model: The secondary beam is made of steel material.

[0012] In summary, the utility model includes at least one of the following beneficial technical effects:

[0013] 1. The utility model discloses a concrete prefabricated component, which has the advantages of a precast concrete beam structure and is better connected with the main beam structure, so that the stability of the main structure node and the overall durability are improved greatly. Since the U-shaped groove is a batch prefabricated component in the factory building, the construction period of the project can be better saved during the construction process, the construction period of the construction project can be saved, the progress management of the construction project can be improved, and the use efficiency of the construction project is improved.

[0014] 2. During the construction of existing industrial warehouses and factory buildings, the roof structure mostly uses a steel structure roof, which can meet the use requirements and reduce the construction cost at the same time. The concrete prefabricated component of the present application can save the construction period and cost during the construction of the project. However, most of the prefabricated components require in-situ casting of the roof structure. In the case of overall in-situ casting of the roof, the overall stability of the house and warehouse structures can be well maintained. The use of concrete prefabricated components solves the problem of the overall stability of the in-situ casting of the prefabricated component roof and the integrity requirements of the steel structure beam and concrete beam and column of the roof. During the construction process, the prefabrication of the concrete prefabricated component in advance can better meet the requirements of the on-site construction period. At the same time, the non-support U-shaped groove concrete prefabricated component can reduce the scaffolding erection on the construction site, reduce material leasing, and better manage the safety and civilization construction of the site. The batch prefabrication of concrete prefabricated components in the factory can better protect the environment, reduce the use of materials, save materials, and save water, electricity and land.

[0015] 3. The non-support system of the U-shaped groove concrete prefabricated component of the present application can better reduce the construction measure cost. At the same time, the original designed beam is deepened and adjusted. The U-shaped groove concrete prefabricated component, as a part of the concrete main beam, forms an integral stress member with the concrete main beam, making the connection of the main body of the frame structure more stable. The use of the pretensioning method in the U-shaped groove can save the use of steel bars in the main frame beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0018] Figure 3 This is the top view of the secondary beam of the present utility model.

[0019] Figure 4 This is the top view after the secondary beam is installed on the precast member body of the present utility model.

[0020] Reference numerals: 1, precast member body; 11, precast concrete; 12, steel strand; 13, steel bar; 2, secondary beam; 3, U-shaped groove; 4, tie bolt. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0022] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0024] Embodiment 1:

[0025] Refer to Figure 1 , a concrete precast member disclosed in the present utility model, includes a precast member body 1, and a plurality of mutually parallel secondary beams 2 are arranged between two adjacent precast member bodies 1, and the two secondary beams 2 on the same straight line on both sides of the precast member body 1 are detachably and fixedly connected.

[0026] Refer to Figure 2, the cross-section of the precast member body 1 is U-shaped, and a U-shaped groove 3 for filling concrete is provided on the precast member body 1. After the U-shaped groove 3 is filled with concrete, the precast member body 1 forms a main beam. Refer to Figure 2 , the precast member body 1 includes precast concrete 11, and a plurality of steel strands 12 and a plurality of steel bars 13 arranged in the precast concrete 11. In this embodiment, five steel strands 12 and sixteen steel bars 13 are arranged in the precast concrete 11 and are evenly distributed in the precast concrete 11, which increases the structural strength of the precast member body 1.

[0027] Refer to Figure 1 and Figure 3 , two secondary beams 2 on the same straight line on both sides of the precast member body 1 are connected by a plurality of tension bolts 4. In this embodiment, four tension bolts 4 are provided to ensure the stability of the connection between the two secondary beams 2. Refer to Figure 4 , three secondary beams 2 that are parallel to each other and have the same spacing are arranged between two adjacent precast member bodies 1. In this embodiment, the secondary beam 2 is made of steel material.

[0028] The implementation principle of the present utility model is as follows: The present utility model discloses a concrete precast member, which has the advantages of a precast concrete beam structure and is better connected to the main beam structure, so that the stability of the main structure nodes and the overall durability are improved to a great extent. Since the U-shaped groove precast member is a batch precast member for the factory building, during the construction process, it can better save the construction period of the project, save the construction period of the construction project, improve the progress management of the construction project, and improve the efficiency of the use of the construction project.

[0029] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A precast concrete part, characterized in that: It comprises a prefabricated body (1), a plurality of mutually parallel secondary beams (2) are arranged between two adjacent prefabricated bodies (1), and two secondary beams (2) on the same straight line on both sides of the prefabricated body (1) are detachably fixedly connected; The cross section of the prefabricated component body (1) is U-shaped, and a U-shaped groove (3) for filling concrete is provided on the prefabricated component body (1). After the U-shaped groove (3) is filled with concrete, the prefabricated component body (1) forms a main beam.

2. A precast concrete part according to claim 1, characterized in that: The prefabricated component body (1) comprises prefabricated concrete (11) and a plurality of steel strands (12) and a plurality of steel bars (13) arranged in the prefabricated concrete (11).

3. The precast concrete part according to claim 1, characterized in that: The two secondary beams (2) on the same straight line on both sides of the prefabricated component body (1) are connected via a plurality of tension bolts (4).

4. The precast concrete part according to claim 1, characterized in that: Three secondary beams (2) which are parallel to each other and have the same spacing are arranged between two adjacent prefabricated component bodies (1).

5. The precast concrete part according to claim 1, characterized in that: The secondary beam (2) is made of steel material.

Images