Prestressed cantilever beam composite structure

Abstract

The invention relates to the technical field of cantilever beams, and discloses a prestressed cantilever beam composite structure which solves the technical problem that a suspended beam is inconvenient to mount and fix on a mounting beam in a suspended mode in the prior art, the prestressed cantilever beam composite structure comprises a base, the mounting beam and a cantilever beam, the mounting beam is fixed to the upper surface of the base, and the mounting beam is of a hollow structure; the cantilever beam penetrates through the mounting beam and extends out of the end part of the mounting beam for cantilever mounting, the cantilever beam comprises a combination part, a cantilever part and an embedded plate, the combination part and the cantilever part are integrally formed, the embedded plate, the combination part and the cantilever part are separately arranged, and the upper surface of the combination part is lower than the upper surface of the cantilever part; the part, close to the overhanging part, of the lower surface of the combination part is flush with the lower surface of the overhanging part and forms a compensation cavity with the inner wall of the installation beam, and the embedded plate is installed in the compensation cavity. According to the technical scheme, the mounting beam is of the hollow structure, the cantilever beam penetrates through the mounting beam to be mounted, and the upper surface of the mounted cantilever beam is flush with the upper surface of the mounting beam.

Description

Technical Field

[0001] The invention relates to the technical field of cantilever beams, and more particularly to a prestressed cantilever beam combined structure. Background Art

[0002] A cantilever beam is a load-bearing beam that extends out of the main structure. Since cantilever beams need to bear weight, the safety performance of cantilever beams is very important.

[0003] Referring to the Chinese invention patent publication with patent announcement number CN217000804U, the prior art discloses a cable-type prestressed cantilever beam combination structure for a climbing frame. The cable structure in the prior art is used to tighten and fix the combined cantilever beam, providing better safety performance. The combined cantilever beam includes a mounting beam and a cantilever beam, and the mounting beam and the cantilever beam are connected and fixed by a connecting plate and a bolt and nut connector.

[0004] However, when installing the suspended beam in the prior art, the suspended beam at the extended part is very inconvenient to be assembled with the mounting beam due to its heavy weight. Especially when the installation height of the suspended beam is very high, how to lift the suspended beam in the air so as to assemble and fix the suspended beam and the mounting beam together is a technical problem that is inconvenient to install in practice. Summary of the invention

[0005] In view of the technical problem raised in the background technology that the cantilever beam in the prior art is inconvenient to be fixed on the mounting beam during suspended construction, the present invention sets the mounting beam as a hollow structure, and the cantilever beam is installed through the mounting beam, and the upper surface of the installed cantilever beam is flush with the upper surface of the mounting beam.

[0006] To achieve the above object, the present invention provides the following technical solutions: A prestressed cantilever beam combination structure comprises a base, a mounting beam and a cantilever beam, wherein the mounting beam is fixed to the upper surface of the base, the mounting beam is a hollow structure, the cantilever beam passes through the mounting beam and extends out of the end of the mounting beam for cantilever installation, the cantilever beam comprises a combination part, a cantilever part and a panel, the combination part and the cantilever part are integrally formed, the panel is separately arranged from the combination part and the cantilever part, the upper surface of the combination part is lower than the upper surface of the cantilever part, a part of the lower surface of the combination part close to the cantilever part is flush with the lower surface of the cantilever part and forms a compensation cavity with the inner wall of the mounting beam, a part of the lower surface of the combination part away from the cantilever part is lower than the lower surface of the cantilever part, and the panel is installed inside the compensation cavity.

[0007] Through the above technical scheme, the present invention sets the mounting beam as a hollow structure, the cantilever beam passes through the mounting beam for installation, and the upper surface of the cantilever beam after installation is flush with the upper surface of the mounting beam. Therefore, there is no need to install the cantilever beam in the air, and the installation of the cantilever beam can be completed directly on the base. In order to achieve the purpose of making the upper surface of the cantilever beam after installation flush with the upper surface of the mounting beam, the present invention sets the cantilever beam to be composed of a combination of a combination part, a cantilever part and a panel. The combination part and the cantilever part are integrally formed, and the panel is separately provided. The upper surface of the combination part is lower than the upper surface of the cantilever part, and a part of the lower surface of the combination part close to the cantilever part is flush with the lower surface of the cantilever part, and forms a compensation cavity with the inner wall of the mounting beam, and a part of the lower surface of the combination part away from the cantilever part is lower than the lower surface of the cantilever part, so that the integrally formed combination part and the cantilever part are a Z-shaped structure, and the panel is installed inside the compensation cavity.

[0008] The present invention further provides that: fixing blocks are arranged on both sides of the mounting beam, and the fixing blocks fix the mounting beam to the upper surface of the base.

[0009] The present invention further has the following features: a through hole is provided on the upper surface of the mounting beam, a threaded hole is provided on the upper surface of the combination portion, a bolt is provided in the through hole, and the bolt passes through the through hole and is threadedly connected in the threaded hole.

[0010] Through the above technical solution, during installation, the combined part can be pulled up by rotating the bolts, so that the upper surface of the cantilever beam is flush with the outer upper surface of the installation beam.

[0011] The present invention further comprises a cable assembly, wherein the cable assembly is installed above the base to provide prestress to the cantilevered portion.

[0012] The present invention further provides that: the cable assembly includes a column, a first cable, a second cable and a third cable, the column is vertically fixed to the base or the upper surface of the mounting beam, one end of the first cable and the second cable are fixed to the top of the column, and the other ends are respectively fixed to the two fixed blocks, one end of the third cable is fixed to the top of the column, and the other end is respectively fixed to the cantilevered parts.

[0013] The present invention further provides that: an installation opening is provided on the upper surface of the cantilevered portion, and the end portion of the third cable is connected to the inside of the installation opening.

[0014] Through the above technical solution, the cable assembly is used to enhance the installation stability of the cantilever beam and improve the bearing capacity of the cantilever beam.

[0015] The present invention further comprises a support assembly, wherein the support assembly is installed below the cantilevered portion.

[0016] The present invention further provides that: the supporting assembly comprises a supporting diagonal rod, one end of the supporting diagonal rod is fixed to the cantilevered portion, and the other end of the supporting diagonal rod is fixed to the base.

[0017] The present invention further provides that: a plurality of vertical rods are arranged between the supporting diagonal rod and the cantilevered portion, wherein one end of the vertical rod is fixed to the cantilevered portion, and the other end is fixed to the supporting diagonal rod.

[0018] Through the above technical solution, the support assembly is used to enhance the installation stability of the cantilever beam and improve the bearing capacity of the cantilever beam.

[0019] The present invention further provides that: the length of a portion of the lower surface of the combined portion close to the cantilever portion and flush with the lower surface of the cantilever portion is greater than or equal to the length of the mounting beam.

[0020] Through the above technical solution, according to the setting of the size relationship, it is achieved that the composite beam can be installed through the installation beam.

[0021] In summary, the present invention has the following beneficial effects: (1) The present invention sets the mounting beam as a hollow structure, and the cantilever beam passes through the mounting beam for installation, and the upper surface of the installed cantilever beam is flush with the upper surface of the mounting beam; (2) The present invention utilizes the cable assembly to enhance the installation stability of the cantilever beam and improve the bearing capacity of the cantilever beam; (3) The present invention utilizes a support assembly to enhance the installation stability of the cantilever beam and improve the bearing capacity of the cantilever beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the cantilever beam combined structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the cantilever beam combined structure of the present invention; Figure 3 This is a schematic diagram of the cantilever beam installation structure of the present invention; Figure 4 It is a schematic diagram of the separate structure of the mounting beam and the cantilever beam of the present invention.

[0023] Figure numerals: 1, base; 2, mounting beam; 2-1, compensation cavity; 2-2, fixing block; 2-3, through hole; 3, cantilever beam; 3-1, combination part; 3-11, threaded hole; 3-2, cantilever part; 3-21, installation port; 3-3, panel; 4, cable assembly; 4-1, column; 4-2, first cable; 4-3, second cable; 4-4, third cable; 5, support assembly; 5-1, supporting diagonal rod; 5-2, column. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices or processes consistent with some aspects of the present application as detailed in the appended claims.

[0025] This specific embodiment provides a prestressed cantilever beam combined structure, in which the mounting beam is set as a hollow structure, the cantilever beam passes through the mounting beam for installation, and the upper surface of the installed cantilever beam is flush with the upper surface of the mounting beam. Under the premise of the same installation effect, the problem of suspended installation of cantilever beams in the prior art is avoided.

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] Below, refer to the attached Figure 1-4 The embodiments are described. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, all the contents of the configurations shown in the embodiments below are not limited to the solutions required as the invention described in the claims.

[0028] A prestressed cantilever beam composite structure, combined with Figure 1-Figure 4 As shown, it includes a base 1, a mounting beam 2 and a cantilever beam 3. The base 1 is used as a mounting carrier, and the base 1 is usually installed on the ground. The mounting beam 2 is fixed to the top upper surface of the base 1. The mounting beam 2 in the present invention is a hollow structure, and the mounting beam 2 is a hollow square tube. The cantilever beam 3 is a solid body and the cantilever beam 3 passes through the mounting beam 2 and extends out of the end of the mounting beam 2 for cantilever installation.

[0029] In order to conveniently describe the dimensional relationship between the cantilever beam 3 and the mounting beam 2, the cantilever beam 3 is decomposed into three parts consisting of a combined part 3-1, a cantilever part 3-2 and a panel 3-3.

[0030] The combination part 3-1 and the cantilever part 3-2 are integrally formed, and the panel 3-3 is separately provided from the combination part 3-1 and the cantilever part 3-2. The panel 3-3 is installed below the combination part 3-1 and inside the mounting beam 2. In terms of size, the upper surface of the combination part 3-1 is lower than the upper surface of the cantilever part 3-2, and the height difference between the two upper surfaces is equal to the thickness of the upper side plate of the mounting beam 2, so that after the cantilever beam 3 passes through the mounting beam 2 for installation, the upper surface of the cantilever beam 3 is flush with the upper surface of the mounting beam 2.

[0031] The lower surface of the combination part 3-1 has two surfaces of different heights. A portion of the lower surface of the combination part 3-1 close to the cantilever part 3-2 is flush with the lower surface of the cantilever part 3-2 and forms a compensation cavity 2-1 with the inner wall of the mounting beam 2; a portion of the lower surface of the combination part 3-1 away from the cantilever part 3-2 is lower than the lower surface of the cantilever part 3-2; the panel 3-3 is installed inside the compensation cavity 2-1. Among them, the length of the portion corresponding to the lower surface of the combination part 3-1 being flush with the lower surface of the cantilever part 3-2 needs to be greater than or equal to the length of the mounting beam 2, otherwise the through installation cannot be achieved.

[0032] In order to lift the combined beam, the upper surface of the combined part 3-1 is made to fit the inner wall top surface of the mounting beam 2, and the upper surface of the cantilever beam 3 is made flush with the outer wall top surface of the mounting beam 2. A through hole 2-3 is provided on the upper surface of the mounting beam 2, and a threaded hole 3-11 is provided on the upper surface of the combined part 3-1. A bolt is provided in the through hole 2-3, and the bolt passes through the through hole 2-3 and is threadedly connected in the threaded hole 3-11. During installation, the combined beam can be lifted and installed by turning the bolt.

[0033] In order to achieve safe installation of the cantilever beam 3, the present invention is provided with a cable assembly 4. The cable assembly 4 is installed above the base 1 to provide prestress to the cantilever portion 3-2. Fixed blocks 2-2 are provided on both sides of the mounting beam 2, and the fixed blocks 2-2 fix the mounting beam 2 to the upper surface of the base 1.

[0034] The cable assembly 4 includes a column 4-1, a first cable 4-2, a second cable 4-3 and a third cable 4-4. The column 4-1 is vertically fixed to the upper surface of the base 1 or the mounting beam 2. One end of the first cable 4-2 and the second cable 4-3 are fixed to the top of the column 4-1, and the other ends are respectively fixed to two fixed blocks 2-2. One end of the third cable 4-4 is fixed to the top of the column 4-1, and the other end is respectively fixed to the cantilever 3-2.

[0035] An installation opening 3 - 21 is provided on the upper surface of the cantilever portion 3 - 2 , and an end portion of the third cable 4 - 4 is connected to the inside of the installation opening 3 - 21 .

[0036] In order to achieve safe installation of the cantilever beam 3, the present invention is provided with a support assembly 5, and the support assembly 5 is installed below the cantilever portion 3-2.

[0037] The support assembly 5 includes a support diagonal rod 5-1, one end of which is fixed to the cantilever portion 3-2, and the other end of which is fixed to the base 1. A plurality of vertical rods 5-2 are arranged between the support diagonal rod 5-1 and the cantilever portion 3-2, one end of which is fixed to the cantilever portion 3-2, and the other end of which is fixed to the support diagonal rod 5-1.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A prestressed cantilever beam assembly structure, comprising a base (1), a mounting beam (2) and a cantilever beam (3), wherein the mounting beam (2) is fixed to the upper surface of the base (1), and characterized in that: The mounting beam (2) is of a hollow structure; the cantilever beam (3) passes through the mounting beam (2) and extends out of the end of the mounting beam (2) for cantilever mounting; the cantilever beam (3) comprises a combined portion (3-1), a cantilever portion (3-2) and a panel (3-3); the combined portion (3-1) and the cantilever portion (3-2) are integrally formed; the panel (3-3) is separately formed from the combined portion (3-1) and the cantilever portion (3-2); the combined portion (3-1) is The upper surface is lower than the upper surface of the cantilever portion (3-2); a portion of the lower surface of the combined portion (3-1) close to the cantilever portion (3-2) is flush with the lower surface of the cantilever portion (3-2) and forms a compensation cavity (2-1) with the inner wall of the mounting beam (2); a portion of the lower surface of the combined portion (3-1) away from the cantilever portion (3-2) is lower than the lower surface of the cantilever portion (3-2); and the panel (3-3) is installed inside the compensation cavity (2-1).

2. The prestressed cantilever beam composite structure according to claim 1, characterized in that: Wherein, fixing blocks (2-2) are provided on both sides of the mounting beam (2), and the fixing blocks (2-2) fix the mounting beam (2) to the upper surface of the base (1).

3. The prestressed cantilever beam composite structure according to claim 1, characterized in that: A through hole (2-3) is provided on the upper surface of the mounting beam (2), a threaded hole (3-11) is provided on the upper surface of the combination portion (3-1), a bolt is provided in the through hole (2-3), and the bolt passes through the through hole (2-3) and is threadedly connected in the threaded hole (3-11).

4. The prestressed cantilever beam composite structure according to claim 2, characterized in that: It also comprises a cable assembly (4), wherein the cable assembly (4) is installed above the base (1) and is used to provide prestress to the cantilevered portion (3-2).

5. The prestressed cantilever beam composite structure according to claim 4, characterized in that: The cable assembly (4) comprises a column (4-1), a first cable (4-2), a second cable (4-3) and a third cable (4-4); the column (4-1) is vertically fixed to the upper surface of the base (1) or the mounting beam (2); one end of the first cable (4-1) and the second cable (4-2) are fixed to the top of the column (4-1), and the other ends are respectively fixed to the two fixing blocks (2-2); one end of the third cable (4-4) is fixed to the top of the column (4-1), and the other end is respectively fixed to the cantilevered portion (3-2).

6. The prestressed cantilever beam composite structure according to claim 5, characterized in that: A mounting opening (3-21) is provided on the upper surface of the cantilevered portion (3-2), and an end portion of the third cable (4-4) is connected to the inside of the mounting opening (3-21).

7. The prestressed cantilever beam composite structure according to claim 1, characterized in that: It also comprises a support assembly (5), wherein the support assembly (5) is installed below the cantilevered portion (3-2).

8. The prestressed cantilever beam composite structure according to claim 7, characterized in that: The support assembly (5) comprises a support oblique rod (5-1), one end of the support oblique rod (5-1) is fixed to the cantilever portion (3-2), and the other end of the support oblique rod (5-1) is fixed to the base (1).

9. The prestressed cantilever beam composite structure according to claim 8, characterized in that: A plurality of vertical rods (5-2) are arranged between the supporting diagonal rod (5-1) and the cantilevered portion (3-2); one end of the vertical rod (5-2) is fixed to the cantilevered portion (3-2), and the other end is fixed to the supporting diagonal rod (5-1).

10. The prestressed cantilever beam composite structure according to claim 1, characterized in that: The length of a portion of the lower surface of the combined portion (3-1) close to the cantilever portion (3-2) and flush with the lower surface of the cantilever portion (3-2) is greater than or equal to the length of the mounting beam (2).

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