Segmental prefabricated assembly type composite beam and construction method thereof

Abstract

The application discloses a sectional prefabricated assembly type composite beam, which comprises a prefabricated mold, a plurality of prefabricated main beam cavities are arranged in the prefabricated mold, a limiting baffle is arranged at the top of the prefabricated main beam cavities, a plurality of prefabricated secondary beam cavities are formed between the limiting baffle and a cover plate, the plurality of prefabricated main beam cavities are arranged in a matrix in a transverse direction, and the plurality of prefabricated secondary beam cavities are arranged in a matrix in a longitudinal direction; a plurality of prefabricated main beams are formed by pouring concrete into the prefabricated main beam cavities, and a plurality of prefabricated secondary beams are formed by pouring concrete into the prefabricated secondary beam cavities. According to the application, two prefabricated parts are manufactured by using one mold, and the limiting baffle is used as a medium; after the prefabrication of the secondary beam is completed, the limiting part with a protrusion is arranged at the bottom; after the prefabrication of the main beam is completed, the limiting groove is arranged at the top of the main beam; and the plurality of secondary beams are limited in the limiting groove on the main beam through the limiting part; the limiting part and the limiting groove are highly consistent with each other; and the installation efficiency and the installation quality of the composite beam in the later stage are improved.

Description

Technical Field

[0001] This invention belongs to the field of precast composite beam technology, and particularly relates to a segmented precast assembled composite beam and its construction method. Background Technology

[0002] Main beams and secondary beams are important components in building structures, playing different roles. Main beams are the primary load-bearing components in a building structure, usually located at the bottom or middle of the building, used to bear and transfer loads. Main beams have large cross-sectional dimensions and can withstand large loads and bending moments, making them an important guarantee for the stability and safety of the building.

[0003] Secondary beams are auxiliary components located above the main beams. They are typically used to transfer loads to the main beams or to add support and stability between the main beams. Secondary beams have relatively small cross-sectional dimensions and can withstand smaller loads and bending moments. In building structures, the connection method between main beams and secondary beams is very important, as it directly affects the stability and safety of the entire structure.

[0004] However, during the installation of existing main beams and secondary beams, it is found that the spacing between several secondary beams installed on the main beams is not uniform. It is difficult to control this precisely during construction, which affects the connection between the main beams and secondary beams and thus the load-bearing capacity of the entire building. Summary of the Invention

[0005] The purpose of this invention is to address the problem that during the installation of existing main beams and secondary beams, the spacing between several secondary beams installed on the main beam is inconsistent, making it difficult to precisely control during construction. This affects the connection between the main beam and secondary beams, and consequently the load-bearing capacity of the entire building. Therefore, this invention proposes a segmented prefabricated composite beam.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a segmented prefabricated assembled composite beam, comprising a prefabrication mold, wherein a plurality of prefabricated main beam cavities are provided within the prefabrication mold, a limiting baffle is provided at the top of the prefabricated main beam cavity, and a plurality of prefabricated secondary beam cavities are formed between the limiting baffle and the cover plate, the plurality of prefabricated main beam cavities are arranged in a matrix laterally, and the plurality of prefabricated secondary beam cavities are arranged in a matrix longitudinally, wherein a plurality of prefabricated main beams are formed by pouring concrete into the prefabricated main beam cavities, and a plurality of prefabricated secondary beams are formed by pouring concrete into the prefabricated secondary beam cavities.

[0007] As a further description of the above technical solution:

[0008] The center of the limiting baffle is recessed downward to form a limiting groove.

[0009] As a further description of the above technical solution:

[0010] The limiting groove is an inverted trapezoid.

[0011] As a further description of the above technical solution:

[0012] The limiting groove is gear-shaped.

[0013] As a further description of the above technical solution:

[0014] The limiting groove has rounded corners.

[0015] As a further description of the above technical solution:

[0016] The precast mold includes a main beam mold body and several secondary beam mold bodies. The top of the limiting baffle is detachably connected to several of the secondary beam mold bodies, and the bottom is detachably connected to the main beam mold body.

[0017] As a further description of the above technical solution:

[0018] The precast main beam has a U-shaped cross-section.

[0019] This invention also provides a construction method for segmented precast assembled composite beams, comprising the following steps:

[0020] S1: First, place the main beam mold body, pour concrete into the precast main beam cavity inside the main beam mold body, and use a vibrator to eliminate the honeycomb pitting of the concrete;

[0021] S2: After the precast main beams in the main beam mold have solidified, install the secondary beam mold body on the limiting baffle to form a number of precast secondary beam cavities.

[0022] S3: Pour concrete into several precast secondary beam cavities, use a vibrator to eliminate honeycomb pitting in the concrete, and cover them with the cover plate, waiting for solidification to form several precast secondary beams.

[0023] S4: After prefabrication, the secondary beam mold body and the main beam mold body are disassembled in sequence, and the prefabricated secondary beam and the prefabricated main beam are taken out in sequence.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] In this invention, during construction, a precast main beam cavity is first built inside a precast mold, and concrete is poured into the precast main beam cavity to form a precast main beam. Then, the secondary beam mold body is installed on a limiting baffle, and concrete is poured into the secondary beam mold cavity. This structure uses one mold to make two precast components. The limiting baffle acts as a medium, so that after the secondary beam is precast, a protruding limiting component is set at the bottom. After the main beam is precast, a limiting groove is set on its top. By limiting several secondary beams in the limiting groove on the main beam through the limiting component, this structure ensures that the main beam and secondary beam have fixed limiting grooves during the precast process, and the limiting component and the limiting groove are highly compatible, which greatly improves the efficiency and quality of the composite beam installation in the later stage. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a top view of a segmented prefabricated composite beam.

[0028] Figure 2 A cross-sectional view of a precast mold in a segmented precast assembled composite beam. Figure 1 .

[0029] Figure 3 A cross-sectional view of a precast mold in a segmented precast assembled composite beam. Figure 2 .

[0030] Figure 4 This is a schematic diagram of a second embodiment of a limiting baffle in a segmented prefabricated composite beam.

[0031] Figure 5 This is a schematic diagram of the structure of a limiting baffle in a segmented prefabricated composite beam, according to Embodiment 3.

[0032] Figure 6 This is a structural schematic diagram of an embodiment of a segmented prefabricated assembled composite beam after prefabrication.

[0033] Figure 7 This is a schematic diagram of the structure of a second embodiment of a segmented prefabricated assembled composite beam after prefabrication.

[0034] Figure 8 This is a schematic diagram of the structure of Example 3 of a segmented prefabricated assembled composite beam after prefabrication.

[0035] Legend:

[0036] 1-Precast mold; 11-Main beam mold body; 12-Secondary beam mold body; 2-Precast main beam cavity; 3-Limiting baffle; 4-Cover plate; 5-Precast secondary beam cavity; 6-Precast main beam; 7-Precast secondary beam; 8-Limiting groove. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Please see Figure 1-8 This invention provides a technical solution: a segmented prefabricated assembled composite beam, including a prefabrication mold 1, wherein a plurality of prefabricated main beam cavities 2 are provided in the prefabrication mold 1, a limiting baffle 3 is provided on the top of the prefabricated main beam cavity 2, and a plurality of prefabricated secondary beam cavities 5 are formed between the limiting baffle 3 and the cover plate 4. The plurality of prefabricated main beam cavities 2 are arranged in a matrix laterally, and the plurality of prefabricated secondary beam cavities 5 are arranged in a matrix longitudinally. A plurality of prefabricated main beams 6 are formed by pouring concrete into the prefabricated main beam cavities 2, and a plurality of prefabricated secondary beams 7 are formed by pouring concrete into the prefabricated secondary beam cavities 5.

[0044] The center of the limiting baffle 3 is recessed downward to form a limiting groove 8.

[0045] The limiting groove 8 is an inverted trapezoid.

[0046] The limiting groove 8 is gear-shaped.

[0047] The limiting groove 8 has rounded corners.

[0048] The precast mold 1 includes a main beam mold body 11 and several secondary beam mold bodies 12. The top of the limiting baffle 3 is detachably connected to several of the secondary beam mold bodies 12, and the bottom is detachably connected to the main beam mold body 11.

[0049] The precast main beam has a U-shaped cross section.

[0050] This invention also provides a construction method for segmented precast assembled composite beams, comprising the following steps:

[0051] S1: First, place the main beam mold body 11, pour concrete into the precast main beam cavity 2 inside the main beam mold body 11, and use a vibrator to eliminate the honeycomb pitting of the concrete.

[0052] S2: After the precast main beams 6 in the main beam mold solidify, install the secondary beam mold body 12 on the limiting baffle 3 to form a number of precast secondary beam cavities 5.

[0053] S3: Concrete is poured into several precast secondary beam cavities 5, and the honeycomb surface of the concrete is eliminated with a vibrator. The cavities are then covered with the cover plate 4 and allowed to solidify to form several precast secondary beams 7.

[0054] S4: After prefabrication, the secondary beam mold body 12 and the main beam mold body 11 are disassembled in sequence, and the prefabricated secondary beam 7 and the prefabricated main beam 6 are taken out in sequence.

[0055] Working principle: During construction, a precast main beam cavity is first built inside a precast mold, and concrete is poured into the cavity to form the precast main beam. Then, the secondary beam mold body is installed on a limiting baffle, and concrete is poured into the secondary beam mold cavity. This structure uses one mold to make two precast components. The limiting baffle acts as a medium, so that after the secondary beam is precast, a protruding limiting component is set at the bottom. After the main beam is precast, a limiting groove is set on its top. By limiting several secondary beams in the limiting groove on the main beam through the limiting component, this structure ensures that the main beam and secondary beam have fixed-position limiting grooves during the precast process, and the limiting component and limiting groove also fit closely, which greatly improves the efficiency and quality of the composite beam installation in the later stage.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A segmented prefabricated assembled composite beam, characterized in that, The system includes a precast mold, which contains several precast main beam cavities. A limiting baffle is installed at the top of each precast main beam cavity, forming several precast secondary beam cavities between the limiting baffle and a cover plate. The precast main beam cavities are arranged in a matrix laterally, and the precast secondary beam cavities are arranged in a matrix longitudinally. Concrete is poured into the precast main beam cavities to form several precast main beams, and concrete is poured into the precast secondary beam cavities to form several precast secondary beams. The precast mold includes a main beam mold body and several secondary beam mold bodies. The top of the limiting baffle is detachably connected to one of the secondary beam mold bodies, and the bottom is detachably connected to the main beam mold body.

2. The segmented prefabricated assembled composite beam according to claim 1, characterized in that, The center of the limiting baffle is recessed downward to form a limiting groove.

3. A segmented prefabricated assembled composite beam according to claim 2, characterized in that, The limiting groove is an inverted trapezoid.

4. A segmented prefabricated assembled composite beam according to claim 2, characterized in that, The limiting groove is gear-shaped.

5. A segmented prefabricated assembled composite beam according to claim 2, characterized in that, The limiting groove has rounded corners.

6. A segmented prefabricated assembled composite beam according to claim 1, characterized in that, The precast main beam has a U-shaped cross-section.

7. A construction method for a segmented precast assembled composite beam according to any one of claims 1-6, characterized in that, Includes the following steps: S1: First, place the main beam mold body, pour concrete into the precast main beam cavity inside the main beam mold body, and use a vibrator to eliminate the honeycomb pitting of the concrete; S2: After the precast main beams in the main beam mold have solidified, install the secondary beam mold body on the limiting baffle to form a number of precast secondary beam cavities. S3: Concrete is poured into several of the precast secondary beam cavities, and the honeycomb surface of the concrete is eliminated with a vibrator. The cavities are then covered with the cover plate and left to solidify to form several of the precast secondary beams. S4: After prefabrication, the secondary beam mold body and the main beam mold body are disassembled in sequence, and the prefabricated secondary beam and the prefabricated main beam are taken out in sequence.

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