Novel support-free concrete and carbon fiber combined thin-wall open type frame beam

Abstract

The utility model discloses a support-free concrete and carbon fiber combined novel thin-wall open type frame beam, and relates to the technical field of frame beam construction. The thin-wall open type frame beam comprises a U-shaped frame used for supporting concrete, carbon fiber cloth is fixedly arranged on the inner wall of the bottom of the U-shaped frame, a plurality of X-shaped inclined struts are fixedly arranged between the two side walls of the U-shaped frame, and a plurality of U-shaped pieces are fixedly arranged between the two side walls of the U-shaped frame and located at the top of the U-shaped frame; the two ends of the U-shaped frame are fixed between the two adjacent frame columns, the site formwork arrangement, formwork erecting and formwork dismounting procedures in the existing construction process can be replaced, meanwhile, concrete is poured into the u-shaped beam, the strength of the u-shaped beam can be free of supporting, steel bars needing to be bound in the site construction process are replaced by carbon fiber cloth at the bottom of the u-shaped beam, and the construction efficiency is improved. The material characteristic that the upper concrete is resistant to pressure and the lower carbon fiber cloth is resistant to tension is fully exerted, the construction speed is increased, the construction period is shortened, meanwhile, the steel consumption is reduced, and the advantages of reducing cost and improving efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of frame beam construction technology, specifically a novel thin-walled open frame beam made of a combination of unsupported concrete and carbon fiber. Background Technology

[0002] As a bending member, beams can be constructed using existing structures such as concrete beams, H-beams, steel-concrete composite beams, and wooden beams. Concrete beams and H-beams are common structures in civil and industrial buildings. For concrete beams, on-site formwork is required before pouring concrete. Supports are then erected underneath the formwork for reinforcement. Reinforcing bars are then tied inside the formwork, and finally, concrete is poured in. After the concrete has solidified, the support columns and formwork are removed. H-beams are entirely made of steel, and most are prefabricated in a factory. During construction, the prefabricated beams are transported to the site and installed on-site using a crane.

[0003] However, the construction of existing concrete beams is limited. There are many procedures such as setting up formwork, tying reinforcing bars, and removing formwork after the concrete has been formed, which makes the construction speed slow and there are certain risks during formwork removal. Although the existing H-beams can be installed quickly, the H-beams are made entirely of steel, and the steel beams are large, resulting in higher costs. Utility Model Content

[0004] The purpose of this invention is to provide a novel thin-walled open frame beam that combines concrete and carbon fiber without support. The U-shaped frame is fixed at both ends between two adjacent frame columns, which can replace the existing on-site formwork setting, erection, and dismantling procedures. At the same time, the U-shaped beam is filled with concrete, and its own strength allows it to be supported without support. The carbon fiber cloth at the bottom of the U-shaped beam replaces the steel bars that need to be tied on-site, giving full play to the material characteristics of the upper concrete resisting compression and the lower carbon fiber cloth resisting tension. This improves construction speed, shortens the construction period, and reduces steel consumption, achieving the advantages of cost reduction and efficiency improvement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel thin-walled open frame beam made of unsupported concrete and carbon fiber composite, comprising a U-shaped frame for supporting the concrete, carbon fiber cloth fixedly installed on the bottom inner wall of the U-shaped frame, multiple X-shaped diagonal braces fixedly installed between the two side walls of the U-shaped frame, and multiple U-shaped components fixedly installed between the two side walls of the U-shaped frame and at the top of the U-shaped frame.

[0006] Preferably, a first fastening bolt is provided between the X-shaped diagonal brace and the side wall of the U-shaped frame, and a second fastening bolt is provided between the U-shaped component and the side wall of the U-shaped frame.

[0007] Preferably, the U-shaped frame has connection holes for external connection on its side walls and near both ends.

[0008] Preferably, multiple U-shaped components and multiple X-shaped diagonal braces are alternately distributed on the U-shaped frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. In this utility model, both ends of the U-shaped frame are fixed between two adjacent frame columns, and carbon fiber cloth is fixedly installed at the bottom of the U-shaped frame. The U-shaped frame can support the concrete, avoiding the existing process of setting up, supporting and dismantling formwork when pouring concrete beams. The carbon fiber cloth is placed inside the bottom of the U-shaped beam. After the poured concrete solidifies, it shares the force with the carbon fiber cloth at the bottom of the U-shaped beam, so that the upper concrete is under compression and the lower carbon fiber cloth is under tension. This effectively utilizes the characteristics of the material itself, achieving self-support without the need for steel reinforcement, improving work efficiency, reducing steel consumption, and achieving the advantages of improving efficiency and reducing costs.

[0011] 2. In this utility model, since the main material of the U-shaped beam is made of steel plate, when an earthquake occurs, the ductility of the steel plate itself can provide timely escape time for the victims. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This utility model Figure 1 A schematic diagram of a localized explosion structure.

[0014] In the picture:

[0015] 1-U-shaped frame, 2-carbon fiber cloth, 3-X-shaped diagonal brace, 4-first fastening bolt, 5-U-shaped part, 6-second fastening bolt, 7-connecting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-2 As shown, a novel unsupported thin-walled open frame beam composed of concrete and carbon fiber composites includes a U-shaped frame 1, combined with... Figure 1 or Figure 2As shown, the cavity of the U-shaped frame 1 is used to store concrete. Preferably, the setting of pouring concrete in the supported U-shaped frame 1 can replace the steel component to a certain extent, which can effectively reduce the amount of steel used and reduce the cost of use. The U-shaped frame 1 is fixedly set between two adjacent frame columns. Furthermore, the side wall of the U-shaped frame 1 and near the two ends are provided with connection holes 7. Preferably, when the distance between two adjacent frame columns is equal to the length of the U-shaped frame 1, the U-shaped frame 1 is directly fixed to the frame column by bolts or other fastening parts passing through the connection holes 7. When the distance between two adjacent frame columns is greater than the length of a single U-shaped frame 1, the two U-shaped frames 1 are connected together and then fixed to the frame column.

[0018] Specifically in this embodiment, combined with Figure 1 or Figure 2 As shown, carbon fiber cloth 2 is fixedly installed on the bottom inner wall of the U-shaped frame 1. Preferably, the carbon fiber cloth 2 is fixedly pasted to the bottom inner wall of the U-shaped frame 1 with adhesive. Multiple X-shaped diagonal braces 3 are fixedly installed between the two side walls of the U-shaped frame 1. Preferably, the multiple X-shaped diagonal braces 3 are all fixed between the side walls of the U-shaped frame 1 with first fastening bolts 4. Multiple U-shaped pieces 5 are fixedly installed between the two side walls of the U-shaped frame 1 and at the top of the U-shaped frame 1. Preferably, the multiple U-shaped pieces 5 are all fixed to the side walls of the U-shaped frame 1 with second fastening bolts 6. The multiple U-shaped pieces 5 and the multiple X-shaped diagonal braces 3 are alternately distributed on the U-shaped frame 1. Furthermore, the installation of the X-shaped diagonal braces 3 and U-shaped pieces 5 prevents the U-shaped frame 1 from becoming unstable after concrete is poured inside the U-shaped frame 1.

[0019] Furthermore, after the concrete of the X-shaped diagonal brace 3 and the U-shaped component 5 solidifies inside the U-shaped frame 1, it solidifies together with the X-shaped diagonal brace 3 and the U-shaped component 5 respectively. Since the X-shaped diagonal brace 3 and the U-shaped component 5 are fixed on the U-shaped frame 1, the firmness of the concrete on the U-shaped frame 1 can be effectively improved, and the concrete can be prevented from detaching from the U-shaped frame 1 after being subjected to force.

[0020] Preferably, the U-shaped frame 1 can support the concrete after it is poured into the U-shaped frame 1, avoiding the need for formwork setting, erection, and dismantling procedures when pouring concrete beams. The two ends of the U-shaped frame 1 are fixed between two adjacent frame columns, which can also achieve the function of eliminating the need for support. The carbon fiber cloth 2 is mixed with the bottom of the concrete after it is poured into the U-shaped frame 1 and solidifies. The carbon fiber cloth 2 enables the concrete to have a tensile function at the bottom, improving the quality of the concrete. The carbon fiber cloth 2 replaces the function of steel bars, avoiding the need for steel bar tying procedures during construction and improving the construction speed.

[0021] Working principle:

[0022] During the work, the length of the U-shaped frame 1 is first determined based on the distance between two adjacent frame columns. When the distance between two adjacent frame columns is equal to the length of a single U-shaped frame 1, it is directly fixed to the frame column by bolts through the connection holes 7. When the distance between two adjacent frame columns is greater than the length of a single U-shaped frame 1, two U-shaped frames 1 of ideal length are spliced ​​together. During splicing, the inner ends of the two U-shaped frames 1 are connected together by bolts through the connection holes 7, and the outer ends of the two U-shaped frames 1 are connected to the frame column by bolts. Next, carbon fiber cloth 2 is glued to the bottom inner wall of the U-shaped frame 1, and X-shaped diagonal braces 3 and U-shaped parts 5 are alternately set on the inner wall of the U-shaped frame 1. Then, concrete is poured into the cavity of the U-shaped frame 1, and the concrete is vented by a vibrator. Finally, the construction of the frame beam is completed.

[0023] After the concrete has solidified inside the U-shaped frame 1, it is mixed with the carbon fiber cloth 2. When the concrete is under stress, the concrete is compressed and the carbon fiber cloth 2 is tensile, which fully utilizes the advantages of the materials. Overall, it reflects the following: low steel consumption, no support required, fast construction speed, and reduced usage costs.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A new type of thin-walled open framed beam of concrete and carbon fiber combination without support, characterized by: The utility model relates to a concrete supporting device, including the U -shaped frame (1) for supporting concrete, the bottom inner wall of U -shaped frame (1) is fixed with carbon fiber cloth (2), a plurality of X type inclined braces (3) are fixed between the two side walls of U -shaped frame (1), a plurality of U -shaped pieces (5) are fixed between the two side walls of U -shaped frame (1) and are located the top of U -shaped frame (1).

2. A new type of thin-walled open framed beam of concrete and carbon fiber combination without support according to claim 1, characterized in that: First fastening bolt (4) is arranged between X type inclined brace (3) and the side wall of U -shaped frame (1), second fastening bolt (6) is arranged between U -shaped piece (5) and the side wall of U -shaped frame (1).

3. A self-supporting concrete and carbon fiber composite thin walled open framed beam according to claim 1, wherein: The side wall of U -shaped frame (1) is close to two side ends and is provided with connecting hole (7) connected with outside.

4. A self-supporting concrete and carbon fiber composite thin walled open framed beam according to claim 1, wherein: A plurality of U -shaped pieces (5) and a plurality of X type inclined braces (3) are alternately distributed on U -shaped frame (1).

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