Concrete steel bar truss girder

Abstract

The utility model provides a concrete steel bar truss girder which comprises an upper supporting structure, a lower supporting structure and web bars, the upper supporting structure comprises second steel bars, third steel bars and first steel bars, a plurality of first steel bars are arranged, the second steel bars and the third steel bars are arranged in parallel, and the front ends of the first steel bars are fixedly connected with the second steel bars. The lower supporting structure comprises a fourth steel bar, a fifth steel bar and a plurality of sixth steel bars, the fourth steel bar and the fifth steel bar are arranged in parallel, the rear ends of the sixth steel bars are fixedly connected with the fifth steel bar, the front ends of the sixth steel bars are fixedly connected with the fourth steel bar, and the rear ends of the sixth steel bars are fixedly connected with the fifth steel bar. According to the design, the problem that an original device is poor in anti-corrosion performance, fireproof performance and the like is solved, and the device is reasonable in structure, good in practicability, large in structural supporting strength, high in stress performance and good in anti-corrosion performance and fireproof performance.

Description

Technical Field

[0001] The utility model relates to a concrete steel bar truss beam, belonging to the technical field of construction. Background Art

[0002] Components made of reinforced concrete, such as beams, slabs, columns, and foundations, are called reinforced concrete components. Concrete components are widely used and are one of the most important structural elements in the construction industry. Concrete components can be prefabricated or cast-in-place. Currently, the production process of concrete components is cumbersome, requiring the internal steel bars to be tied together and a large amount of supporting steel bars to be installed.

[0003] Patent No.: CN209837466U, mentions a concrete reinforced truss beam, which is provided with upper and lower chord steel bars at the upper and lower parts of the concrete material respectively, and wavy web bars are provided in the concrete material between the upper and lower chord steel bars, and the top of the wavy web bars is connected and fixed to the upper chord steel bars, and the bottom of the wavy web bars is connected and fixed to the lower chord steel bars. A number of stirrups are also provided on the outside of the upper and lower chord steel bars and the web bars. It can replace traditional concrete structural beams, has reasonable stress performance, strong integrity, strong shear resistance and crack resistance, simple construction, and can be prefabricated on a large scale. It is a reinforced truss concrete beam structure with excellent mechanical properties. However, this device has problems with poor performance in corrosion resistance and fire resistance. Now there is an urgent need for a concrete reinforced truss beam to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a concrete reinforced steel truss beam to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. It not only has high structural support strength and strong force-bearing performance, but also has good anti-corrosion and fire resistance.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a concrete steel bar truss beam, comprising an upper supporting structure, a lower supporting structure and web reinforcement, the upper supporting structure comprising a second steel bar, a third steel bar and a first steel bar, a plurality of the first steel bars are provided, the second steel bar is arranged in parallel with the third steel bar, a plurality of the front ends of the first steel bars are fixedly connected to the second steel bars, and a plurality of the rear ends of the first steel bars are fixedly connected to the third steel bars. The lower supporting structure comprises a fourth steel bar, a fifth steel bar and a sixth steel bar, the fourth steel bar is arranged in parallel with the fifth steel bar, a plurality of the sixth steel bars are provided, a plurality of the rear ends of the sixth steel bars are fixedly connected to the fifth steel bar, a plurality of the front ends of the sixth steel bars are fixedly connected to the fourth steel bar, two web reinforcements are provided, and the two bent portions of the web reinforcements are fixedly connected to the plurality of first steel bars and the sixth steel bars respectively.

[0006] Furthermore, a plurality of second supporting steel bars are fixed between the second steel bar and the fourth steel bar, and a plurality of third supporting steel bars are fixed between the fifth steel bar and the third steel bar.

[0007] Furthermore, first supporting steel bars are symmetrically fixed below the two first steel bars at the leftmost and rightmost ends between the second and third steel bars, and multiple first supporting steel bars are respectively fixedly connected to the sixth steel bar below them.

[0008] Furthermore, concrete is poured on the outer sides of the upper supporting structure and the lower supporting structure.

[0009] Furthermore, the outer side of the concrete is coated with a fireproof coating.

[0010] Furthermore, an anti-corrosion coating is provided on the outside of the fire-retardant coating.

[0011] The beneficial effects of the utility model: The utility model is a concrete steel truss beam, because the utility model adds anti-corrosion coating, fire-proof coating, web reinforcement, first supporting steel bar, second supporting steel bar, first steel bar and second steel bar, our design improvement and actual use show that the device has a reasonable structure and good practicality. It not only has high structural support strength and strong force-bearing performance, but also has good anti-corrosion and fire-proof properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a concrete reinforced steel truss beam of the utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the cross-sectional structure of a concrete reinforced steel truss beam of the present invention;

[0015] Figure 3 This is a schematic diagram of the first angle structure of the reinforcement portion of a concrete reinforced steel truss beam of the present invention;

[0016] Figure 4 This is a schematic diagram of the second angle structure of the steel bar portion of a concrete steel bar truss beam of the present invention.

[0017] In the figure: 1-anti-corrosion coating, 2-fire-retardant coating, 3-concrete, 4-upper supporting structure, 5-web reinforcement, 6-first supporting steel bar, 7-second supporting steel bar, 8-lower supporting structure, 9-third supporting steel bar, 40-first steel bar, 41-second steel bar, 42-third steel bar, 80-fourth steel bar, 81-fifth steel bar, 82-sixth steel bar. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a concrete reinforced truss beam, including an upper supporting structure 4, a lower supporting structure 8 and a web 5, the upper supporting structure 4 includes a second steel bar 41, a third steel bar 42 and a first steel bar 40, a plurality of first steel bars 40 are provided, the second steel bar 41 and the third steel bar 42 are arranged in parallel, the front ends of the plurality of first steel bars 40 are fixedly connected to the second steel bars 41, and the rear ends of the plurality of first steel bars 40 are fixedly connected to the third steel bars 42. The lower supporting structure 8 includes a fourth steel bar 80, a fifth steel bar 81 and a sixth steel bar 82, the fourth steel bar 80 and the fifth steel bar 81 are arranged in parallel, the sixth steel bar 82 is provided, the rear ends of the plurality of sixth steel bars 82 are fixedly connected to the fifth steel bar 81, and the front ends of the plurality of sixth steel bars 82 are fixedly connected to the fourth steel bar 80, there are two webs 5, and the bending parts of the two webs 5 are fixedly connected to the plurality of first steel bars 40 and the sixth steel bars 82 respectively. This design solves the problems of the original device.

[0020] As the first embodiment of the present utility model: a plurality of second support steel bars 7 are fixed between the second steel bar 41 and the fourth steel bar 80, and a plurality of third support steel bars 9 are fixed between the fifth steel bar 81 and the third steel bar 42. By providing a plurality of second support steel bars 7 and a plurality of third support steel bars 9, the longitudinal support strength of the entire device can be strengthened. First support steel bars 6 are symmetrically fixed below the two first steel bars 40 at the leftmost and rightmost ends between the second steel bar 41 and the third steel bar 42, and the plurality of first support steel bars 6 are respectively fixedly connected to the sixth steel bar 82 below them. Concrete 3 is poured on the outside of the upper support structure 4 and the lower support structure 8, and a fire retardant coating 2 is applied on the outside of the concrete 3. An anti-corrosion coating 1 is provided on the outside of the fire retardant coating 2. The fire retardant coating 2 and the anti-corrosion coating 1 are provided to improve the fire resistance and corrosion resistance of the device.

[0021] As the second embodiment of the present utility model: when the device is subjected to stress, multiple second supporting steel bars 7, multiple third supporting steel bars 9 and multiple first supporting steel bars 6 can play a good compressive resistance effect. Together with two web bars 5, the overall compressive resistance of the device can be further enhanced. The anti-corrosion coating 1 and the fire-retardant coating 2 can play a good fire-proof and anti-corrosion role, provide certain protection for the concrete structure, and extend its service life.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A concrete reinforced steel truss beam, comprising an upper supporting structure (4), a lower supporting structure (8) and web reinforcement (5), characterized in that: The upper support structure (4) comprises a second steel bar (41), a third steel bar (42) and a first steel bar (40), a plurality of the first steel bars (40) are provided, the second steel bars (41) and the third steel bars (42) are arranged in parallel, the front ends of the plurality of the first steel bars (40) are fixedly connected to the second steel bars (41), and the rear ends of the plurality of the first steel bars (40) are fixedly connected to the third steel bars (42); The lower support structure (8) includes a fourth steel bar (80), a fifth steel bar (81) and a sixth steel bar (82), wherein the fourth steel bar (80) and the fifth steel bar (81) are arranged in parallel, and a plurality of the sixth steel bars (82) are provided, and the rear ends of the plurality of the sixth steel bars (82) are fixedly connected to the fifth steel bar (81), and the front ends of the plurality of the sixth steel bars (82) are fixedly connected to the fourth steel bar (80), and the two web bars (5) are provided with two bent portions, and the two first steel bars (40) and the sixth steel bars (82) are fixedly connected respectively.

2. The concrete reinforced steel truss beam according to claim 1, characterized in that: A plurality of second supporting steel bars (7) are fixed between the second steel bar (41) and the fourth steel bar (80), and a plurality of third supporting steel bars (9) are fixed between the fifth steel bar (81) and the third steel bar (42).

3. The concrete reinforced steel truss beam according to claim 1, characterized in that: First supporting steel bars (6) are symmetrically fixed below the two first steel bars (40) at the leftmost and rightmost ends between the second steel bars (41) and the third steel bars (42), and a plurality of the first supporting steel bars (6) are respectively fixedly connected to the sixth steel bars (82) below them.

4. The concrete reinforced steel truss beam according to claim 1, characterized in that: Concrete (3) is poured on the outer sides of the upper supporting structure (4) and the lower supporting structure (8).

5. The concrete reinforced steel truss beam according to claim 4, characterized in that: The outer side of the concrete (3) is coated with a fireproof coating (2).

6. The concrete reinforced steel truss beam according to claim 5, characterized in that: An anti-corrosion coating (1) is provided on the outer side of the fire-proof coating (2).

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