CN215631060U - Fiber reinforced composite material pultrusion profile with web stiffening rib - Google Patents
Fiber reinforced composite material pultrusion profile with web stiffening rib Download PDFInfo
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- CN215631060U CN215631060U CN202121394687.3U CN202121394687U CN215631060U CN 215631060 U CN215631060 U CN 215631060U CN 202121394687 U CN202121394687 U CN 202121394687U CN 215631060 U CN215631060 U CN 215631060U
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Abstract
The utility model discloses a fiber reinforced composite material pultruded profile with a web stiffening rib, which comprises a pultruded profile beam component and a web stiffening rib, wherein the pultruded profile beam component is a fiber reinforced composite material pultruded profile beam component with an open cross section and comprises a web and a first flange plate, the web is positioned on one side of the first flange plate, one end of the web is fixed with the first flange plate, and the first flange plate is a compressed flange plate; the web stiffening rib is a fiber reinforced composite stiffening rib, and the web stiffening rib is connected with one side of the first flange plate and one side of the web respectively. The fiber reinforced composite material pultrusion profile with the web stiffening rib has the advantages of large bearing capacity, high safety, strong design property and strong operability.
Description
Technical Field
The utility model relates to the technical field of civil engineering, in particular to a fiber reinforced composite material pultrusion profile with a web stiffening rib.
Background
The fiber reinforced composite material pultruded profile (composite profile for short) has the advantages of light weight, high strength, corrosion resistance and the like, and is commonly used for building pedestrian bridges, cooling towers and frame structures. The section forms of the composite material section bar comprise I-shaped, groove-shaped, rectangular, angular and the like.
The elasticity modulus of the pultruded profile is low and has orthogonal anisotropy, and the pultruded profile is often a thin-walled section, which all causes the pultruded profile to be easy to have buckling instability under the bending action to reduce the bearing capacity of the pultruded profile. The local buckling phenomenon of the pressed flange plate is particularly obvious in the pultruded profile with an open cross section, the open cross section comprises an I-shaped cross section, a groove-shaped cross section and the like, only one end of the pressed flange plate in the pultruded profile with the groove-shaped cross section is restrained by a web plate, the other end of the pressed flange plate is a free end, both ends of the pressed flange plate of the pultruded profile with the I-shaped cross section are free ends, the free ends of the pressed flange plate can be freely twisted, and the local buckling strength of the pultruded profile with the open cross section is lower than that of a closed cross section (comprising a rectangular cross section) due to the existence of the free ends.
How to effectively improve the local buckling strength of the open-section type pultrusion section beam component is still a technical problem.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model aims to provide the fiber reinforced composite material pultrusion profile with the web stiffening rib, which has the advantages of high bearing capacity, high safety, high design property and strong operability.
A fiber reinforced composite pultruded profile with a web stiffener according to an embodiment of the present invention, comprises:
the composite material;
the web stiffening rib is a fiber reinforced composite stiffening rib, and the web stiffening rib is connected with one side of the first flange plate and one side of the web respectively.
According to the fiber reinforced composite material pultruded profile with the web stiffening rib provided by the embodiment of the utility model, as the first flange plate of the pultruded profile beam component is the pressed flange plate, under the bending action, the first flange plate is easy to generate the local buckling instability phenomenon, so that the bearing capacity of the pultruded profile beam component is greatly reduced, and the web stiffening rib is respectively connected with one side of the first flange plate and one side of the web plate, so that the local buckling strength of the first flange plate, namely the pressed flange plate, of the pultruded profile beam component with any open cross section (including I-shaped, groove-shaped, T-shaped, L-shaped and the like) can be enhanced, the bearing capacity of the fiber reinforced composite material pultruded profile can be greatly improved, the safety of the fiber reinforced composite material pultruded profile is improved, and the efficient utilization of the pultruded profile beam component with the open cross section is realized. Meanwhile, the web stiffening rib has the advantages of strong design and strong operability, and can be used for improving the performance of a newly-built composite material structure and reinforcing and repairing the built composite material structure. In a word, the fiber reinforced composite material pultrusion profile with the web stiffening rib provided by the embodiment of the utility model has the advantages of large bearing capacity, high safety, and strong design property and operability.
According to a further embodiment of the present invention, one end of the web is fixed to one end of the first flange plate, and the other end of the first flange plate is a free end; or one end of the web plate is fixed with the middle part of the first flange plate, and both ends of the first flange plate are free ends.
According to a further embodiment of the utility model, the web stiffener is in the form of a flat plate, the web stiffener being connected to the web and the first flange plate, respectively, by a first layer of adhesive.
According to a further embodiment of the utility model, the web stiffener is angular and the web stiffener is connected to the web and the first flange plate by bolts and/or a second adhesive layer, respectively.
According to further embodiments of the present invention, the web stiffener is a pultrusion process formed stiffener, a hand lay-up process formed stiffener, a vacuum infusion process formed stiffener or a molding process formed stiffener.
According to a further embodiment of the utility model, the web stiffener is a glass fiber resin composite stiffener, a carbon fiber resin composite stiffener, a basalt fiber resin composite stiffener or an aramid fiber resin composite stiffener.
According to a further embodiment of the present invention, the web stiffener has a thickness no less than the thickness of the pultruded profile beam element.
According to a still further embodiment of the present invention, the web stiffener has a width corresponding to a width between a junction of the first flange plate and the web to a corresponding free end of the first flange plate, the web stiffener having a height no less than half of a height of the pultruded profile beam element.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic perspective view of a fiber reinforced composite pultruded profile with a web stiffener according to one embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the fiber reinforced composite pultruded profile with web stiffeners of FIG. 1.
FIG. 3 is a schematic perspective view of a fiber reinforced composite pultruded profile with web stiffeners according to another embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view of the fiber reinforced composite pultruded profile with web stiffeners of FIG. 3.
FIG. 5 is an exploded schematic view of a fiber reinforced composite pultruded profile with a web stiffener according to yet another embodiment of the present invention.
FIG. 6 is an exploded schematic view of a fiber reinforced composite pultruded profile with web stiffeners according to yet another embodiment of the present invention.
FIG. 7 is an exploded schematic view of a fiber reinforced composite pultruded profile with web stiffeners according to yet another embodiment of the present invention.
FIG. 8 is an exploded schematic view of a fiber reinforced composite pultruded profile with web stiffeners according to yet another embodiment of the present invention.
Reference numerals:
fiber reinforced composite pultruded profile 1000 with web stiffeners
Pultruded profile beam element 1
First adhesive layer 301 bolt 302 second adhesive layer 303
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A fiber reinforced composite pultruded profile 1000 with web stiffeners according to an embodiment of the present invention is described below with reference to fig. 1-8.
As shown in fig. 1 to 8, a fiber reinforced composite pultruded profile 1000 with web stiffener according to an embodiment of the present invention includes a pultruded profile beam member 1 and a web stiffener 2, where the pultruded profile beam member 1 is a fiber reinforced composite pultruded profile beam member with an open cross-section, and the open cross-section may be understood as an i-shaped, a channel-shaped, a T-shaped or an L-shaped cross-section, etc.; the pultruded profile beam component 1 is obtained by adopting a fiber reinforced composite material for pultrusion, and has the advantages of light weight, high strength, corrosion resistance and the like. The pultruded profile beam element 1 comprises a web 101 and a first flange plate 102, wherein the web 101 is positioned at one side of the first flange plate 102, one end of the web 101 is fixed with the first flange plate 102, and the first flange plate 102 is a compression flange plate; it can be understood that the modulus of elasticity of the pultruded profile beam element 1 is low and has orthotropic properties, the pultruded profile beam element 1 is a thin-walled open cross section, since one end of the web 101 is fixed to the first flange plate 102, and one end or both ends of the first flange plate 102 are free ends, the free ends can be freely twisted, when the first flange plate 102 is a stressed flange plate, the first flange plate 102 is prone to local buckling instability under bending, thereby greatly reducing the bearing capacity of the pultruded profile beam element 1 and affecting the overall safety of the pultruded profile beam element 1.
The web stiffening rib 2 is a fiber reinforced composite stiffening rib, namely, the web stiffening rib 2 is made of fiber reinforced composite material, and has the advantages of light weight, high strength, corrosion resistance and the like; the web stiffening rib 2 is connected with one side of the first flange plate 102 and one side of the web 101 respectively, so that the free end of the first flange plate 102 can be well restrained through the web stiffening rib 2, the local buckling strength of the first flange plate 102, namely the pressed flange plate, of the pultrusion profile beam member 1 with any open cross section (including I-shaped, groove-shaped, T-shaped, L-shaped and the like) can be enhanced, the bearing capacity of the fiber reinforced composite material pultrusion profile 1000 with the web stiffening rib can be greatly improved, the safety of the fiber reinforced composite material pultrusion profile 1000 with the web stiffening rib is improved, and the efficient utilization of the pultrusion profile beam member 1 with the open cross section is realized.
In accordance with the fiber reinforced composite pultruded profile 1000 with web stiffeners of an embodiment of the present invention, since the first flange plate 102 of the pultruded profile beam element 1 is a compressed flange plate, under bending, the first flange plate 102 is susceptible to local buckling instability, resulting in a substantial reduction in the load bearing capacity of the pultruded profile beam element 1, by connecting the web stiffener 2 to one side of the first flange plate 102 and one side of the web 101 respectively, the local buckling strength of the first flange plate 102 of the pultruded profile beam element 1, i.e. the compression flange plate, of any open cross-section (including i-shaped, channel-shaped, T-shaped, L-shaped, etc.) can be enhanced, therefore, the bearing capacity of the fiber reinforced composite material pultruded profile 1000 with the web stiffening rib can be greatly improved, the safety of the fiber reinforced composite material pultruded profile 1000 with the web stiffening rib is improved, and the efficient utilization of the pultruded profile beam member 1 with the open cross section is realized. Meanwhile, the web stiffening rib 2 has the advantages of strong design and strong operability, and can be used for improving the performance of a newly-built composite material structure and reinforcing and repairing the built composite material structure. In a word, the fiber reinforced composite pultruded profile 1000 with the web stiffening rib according to the embodiment of the present invention has a large bearing capacity, high safety, and strong design and operability.
According to an embodiment of the present invention, one end of the web 101 is fixed to one end of the first flange plate 102, and the other end of the first flange plate 102 is a free end; for example, in one specific example, as shown in fig. 3, the cross-section of the pultruded profile beam element 1 is channel-shaped, the pultruded profile beam element 1 comprises a first flange plate 102, a web 101 and a second flange plate 103, one end of the first flange plate 102 is fixed to one end of the web 101, the other end of the first flange plate 102 is a free end, one end of the second flange plate 103 is fixed to the other end of the web 101, and the other end of the second flange plate 103 is a free end, or in another specific example, the cross-section of the pultruded profile beam element 1 is L-shaped, the pultruded profile beam element 1 comprises a first flange plate 102 and a web 101, one end of the first flange plate 102 is fixed to one end of the web 101, and the other end of the first flange plate 102 is a free end. Or one end of the web plate 101 is fixed with the middle part of the first flange plate 102, and both ends of the first flange plate 102 are free ends; for example, in one specific example, as shown in fig. 6, the cross section of the pultruded profile beam element 1 is i-shaped, the pultruded profile beam element 1 comprises a first flange plate 102, a web plate 101 and a second flange plate 103, the middle part of the first flange plate 102 is fixed with one end of the web plate 101, both ends of the first flange plate 102 are free ends, the middle part of the second flange plate 103 is fixed with the other end of the web plate 101, both ends of the second flange plate 103 are free ends, or in another specific example, the cross section of the pultruded profile beam element 1 is T-shaped, the pultruded profile beam element 1 comprises the first flange plate 102 and the web plate 101, the middle part of the first flange plate 102 is fixed with one end of the web plate 101, and both ends of the first flange plate 102 are free ends. Therefore, the structural shape of the opening section of the pultruded profile beam element 1 can be selected according to actual requirements.
As shown in fig. 3 to 5, according to some embodiments of the present invention, the web stiffener 2 is flat plate-shaped, and the web stiffener 2 is connected to the web 101 and the first flange plate 102 by the first adhesive layer 301, for example, as shown in fig. 5, the cross section of the pultruded profile beam member 1 is i-shaped, and the web stiffener 2 is connected to the web 101 and the first flange plate 102 by the first adhesive layer 301, so that the connection and fixing operation is convenient, fast and efficient, the adhesive connection strength is good, and the bonding is firm. Preferably, the first adhesive layer 301 is a first epoxy layer, so that the bonding is more secure.
According to some embodiments of the present invention, the web stiffener 2 is angular, and the web stiffener 2 is connected to the web 101 and the first flange plate 102 by bolts 302 or/and the second adhesive layer 303, respectively. Specifically, the angular web stiffener 2 includes a mounting plate 201 and a stiffener plate 202 connected at an angle (e.g., 90 °), in a specific example, one side of the mounting plate 201 and one side of the web 101 are attached to each other, one end of the stiffener plate 202 is attached to the first flange plate 102, the web stiffener 2 may be fixed to the web 101 by bolts 302 alone (as shown in fig. 6), or in another specific example, between the mounting plate 201 and the web 101 of the web stiffener 2 and between one end of the stiffener plate 202 of the web stiffener 2 and the first flange plate 102 by a second adhesive layer 303 (as shown in fig. 7), which is simple and reliable, or in another specific example, while the mounting plate 201 and the web 101 of the web stiffener 2 and one end of the stiffener plate 202 of the web stiffener 2 and the first flange plate 102 are fixed by the second adhesive layer 303, the mounting plate 201 is further fixed to the web 101 by bolts 302 (see fig. 8), which is more secure.
According to some embodiments of the present invention, the web stiffener 2 is a pultrusion stiffener, a hand lay-up stiffener, a vacuum import stiffening stiffener or a molding stiffener, the pultrusion stiffener is a stiffener produced by a pultrusion production process, the hand lay-up stiffener is a stiffener produced by a hand lay-up process, the vacuum import stiffening stiffener is a stiffener produced by a vacuum import process, and the molding stiffener is a stiffener produced by a molding process, and in practice, a suitable processing process can be selected according to a processing environment and requirements.
According to some embodiments of the present invention, the fibers in the web stiffener 2 may be glass fibers, carbon fibers, basalt fibers, aramid fibers, etc., and the resin in the web stiffener 2 may be unsaturated polyester resin, epoxy resin, vinyl resin, polyurethane resin, etc., and the desired fiber resin composite stiffener may be manufactured according to actual needs, for example, the web stiffener 2 may be a glass fiber resin composite stiffener, a carbon fiber resin composite stiffener, a basalt fiber resin composite stiffener, or an aramid fiber resin composite stiffener, etc.
According to some embodiments of the present invention, the thickness of the web stiffener 2 is not less than the thickness of the pultruded profile beam member 1, so as to ensure the supporting strength of the web stiffener 2 when supporting and fixing the first flange plate 102, which is beneficial for greatly improving the bearing capacity of the fiber reinforced composite pultruded profile 1000 with the web stiffener.
According to a further embodiment of the present invention, the width of the web stiffener 2 is the same as the width from the connection between the first flange plate 102 and the web 101 to the corresponding free end of the first flange plate 102, and the height of the web stiffener 2 is not less than half of the height of the pultruded profile beam member 1, so as to ensure the supporting strength of the web stiffener 2 when supporting and fixing the first flange plate 102, which is beneficial to greatly improve the bearing capacity of the fiber reinforced composite pultruded profile 1000 with web stiffener.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A fiber reinforced composite pultruded profile with a web stiffener, comprising:
the composite material;
the web stiffening rib is a fiber reinforced composite stiffening rib, and the web stiffening rib is connected with one side of the first flange plate and one side of the web respectively.
2. The fiber reinforced composite pultruded profile with web stiffener according to claim 1, wherein one end of the web is fixed with one end of the first flange plate, the other end of the first flange plate being a free end; or one end of the web plate is fixed with the middle part of the first flange plate, and both ends of the first flange plate are free ends.
3. The fiber reinforced composite pultruded profile according to any of claims 1 to 2, wherein said web stiffener is in the form of a flat plate, said web stiffener being connected to said web and said first flange plate, respectively, by a first adhesive layer.
4. The fiber reinforced composite pultruded profile according to any of claims 1 to 2, wherein said web stiffener is angular and said web stiffener is connected to said web and said first flange plate by means of bolts or/and a second adhesive layer.
5. The fiber reinforced composite pultruded profile with a web stiffener according to any of claims 1 to 2, wherein the web stiffener is a pultrusion process shaped stiffener, a hand lay-up process shaped stiffener, a vacuum infusion process shaped stiffener or a molding process shaped stiffener.
6. The fiber reinforced composite pultruded profile with web stiffener according to any of claims 1-2, characterized in that the web stiffener is a glass fiber resin composite stiffener, a carbon fiber resin composite stiffener, a basalt fiber resin composite stiffener or an aramid fiber resin composite stiffener.
7. The fiber reinforced composite pultruded profile with web stiffener according to any of claims 1-2, characterized in that the thickness of the web stiffener is not less than the thickness of the pultruded profile beam element.
8. The fiber reinforced composite pultruded profile with a web stiffener according to claim 7, wherein the width of the web stiffener is identical to the width between the connection of the first flange plate and the web to the corresponding free end of the first flange plate, and the height of the web stiffener is not less than half the height of the pultruded profile beam element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394687.3U CN215631060U (en) | 2021-06-22 | 2021-06-22 | Fiber reinforced composite material pultrusion profile with web stiffening rib |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394687.3U CN215631060U (en) | 2021-06-22 | 2021-06-22 | Fiber reinforced composite material pultrusion profile with web stiffening rib |
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| CN215631060U true CN215631060U (en) | 2022-01-25 |
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| CN202121394687.3U Active CN215631060U (en) | 2021-06-22 | 2021-06-22 | Fiber reinforced composite material pultrusion profile with web stiffening rib |
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