CN212562171U

CN212562171U - Raw bamboo structure component adopting FRP (fiber reinforced plastic) mixed braided hemp rope

Info

Publication number: CN212562171U
Application number: CN202020450637.1U
Authority: CN
Inventors: 孟鑫淼; 孙菡; 曹宇阳; 冯鹏; 高颖
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-02-19
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses an adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp, adopt FRP mixed weaving rope made of hemp's former bamboo structure subassembly, include: raw bamboo; the FRP mixed braided hemp rope is wound outside the original bamboo, and comprises: at least one hemp rope tow and at least one fiber tow are mutually wound to form the composite material; and the resin is coated on the outer wall surface of the raw bamboo and used for infiltrating the FRP hybrid hemp rope. The bamboo has the characteristics of light weight, high strength and corrosion resistance, effectively improves the bearing capacity of the raw bamboo, and prolongs the service life of the raw bamboo.

Description

Raw bamboo structure component adopting FRP (fiber reinforced plastic) mixed braided hemp rope

Technical Field

The utility model belongs to the technical field of civil engineering and specifically relates to an adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp.

Background

In the related technology, ecological buildings and green and environment-friendly building materials become important directions for the development of the building industry, bamboo is the plant with the highest growth speed, the bamboo can be made into the materials in 3-5 years generally, the comprehensive energy consumption is low, and the requirements of energy conservation and environmental protection can be met in the whole life cycle. The bamboo has excellent mechanical property along the grain direction, light weight, high strength and good earthquake resistance, so that the bamboo has wide development prospect as an energy-saving, environment-friendly and sustainable ecological building material.

The raw bamboo is not mechanically processed bamboo, and has unique artistic aesthetic feeling because the natural color, shape and texture of the bamboo are maintained. The modern bamboo building is mainly used for practical houses with low price in tropical or subtropical regions, temporary buildings for sightseeing and the like, the application range is not wide, the reason is the reason that the raw bamboo is used as a natural material, the appearance is irregular, the performance dispersion is large, the grain is easy to crack, the durability is poor, various mechanical strengths of the raw bamboo are reduced, the mechanical advantages of the raw bamboo cannot be well exerted, the strength requirements of bearing members such as building structural members and the like cannot be met, and the raw bamboo is not suitable for continuous use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp, it is light to have a quality, and intensity is big, has the characteristics of corrosion resistance simultaneously, effectively promotes the bearing capacity of former bamboo, improves the life of former bamboo simultaneously.

According to the utility model discloses an adopt former bamboo structure subassembly of FRP thoughtlessly weaving rope made of hemp, a serial communication port, include: raw bamboo; the FRP mixed braided hemp rope is wound outside the original bamboo, and comprises: at least one hemp rope tow and at least one fiber tow are mutually wound to form the composite material; and the resin is coated on the outer wall surface of the raw bamboo and used for infiltrating the FRP hybrid hemp rope.

According to the utility model discloses adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp, because the utility model discloses an adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp, FRP mixed weaving rope made of hemp material is light, but intensity is high, through adding the fibre silk bundle in the rope made of hemp, can effectively promote FRP mixed weaving rope made of hemp's reinforcement intensity, and the material is with low costs, FRP mixed weaving rope made of hemp is applicable to the former bamboo structure of various height and volumes simultaneously, high durability and convenient use, and the construction shaping is convenient, still has corrosion resistance, and do not influence the original aesthetic property of former bamboo structure.

Additionally, according to the utility model discloses an adopt former bamboo structure subassembly of FRP mixed weaving rope made of hemp, can also have following additional technical characterstic:

in some embodiments of the invention, the resin comprises an epoxy resin, a polyurethane resin, or a bio-based resin.

In some embodiments of the present invention, the fiber tow comprises at least one of glass fibers, carbon fibers, polyethylene terephthalate fibers, basalt fibers, aramid fibers, and hybrid fibers.

In some embodiments of the present invention, the tow of twine comprises at least one of flax and jute.

In some embodiments of the present invention, the tow of hemp comprises a plurality of strands, and the fiber tow comprises at least one strand and is intertwined with each other.

In some embodiments of the present invention, the central bundle of the FRP hybrid hemp rope is the fiber tow, and the fiber tows are wound around the fiber tow.

In some embodiments of the present invention, the fiber tows, the strands of the fiber tows are arranged in a crossing manner and are wound around the fiber tows as the center.

In some embodiments of the present invention, the central bundle of the FRP hybrid hemp rope is the hemp rope tow, the plurality of the hemp rope tows and the plurality of the fiber tows are arranged to intersect each other and are wound around the fiber tows as the center.

Additional aspects and advantages of the invention 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 invention.

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 structural diagram of a raw bamboo structural component adopting FRP hybrid hemp ropes and a bamboo tube of raw bamboo according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a raw bamboo structure assembly adopting FRP hybrid hemp ropes matching with bamboo joints of raw bamboos according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a raw bamboo structure component adopting FRP hybrid hemp ropes matching with bamboo joints of raw bamboos according to an embodiment of the present invention;

fig. 4 is a perspective view of an FRP hybrid hemp rope according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a winding manner of the FRP hybrid hemp rope according to the embodiment of the present invention;

FIG. 6 is a diagram illustrating another winding manner of the FRP hybrid hemp rope according to the embodiment of the present invention;

fig. 7 is a diagram of another winding manner of the FRP hybrid hemp rope according to the embodiment of the present invention.

Reference numerals:

an original bamboo structure component 100 of FRP mixed braided hemp ropes is adopted;

1, raw bamboo;

FRP mixed braided hemp rope 2; rope tow 21; a fiber tow 22.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A raw bamboo structure assembly 100 using FRP hybrid hemp ropes according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

As shown in fig. 1 to 7, a raw bamboo structure assembly 100 using FRP hybrid hemp includes: raw bamboo 1, FRP co-woven hemp 2 and resin (not shown in the figure).

Specifically, FRP mixes to compile rope made of hemp 2 winding in the outside of former bamboo 1, FRP mixes to compile rope made of hemp 2 and includes: the FRP mixed braided rope 2 is formed by winding rope tows 21 and fiber tows 22, and the FRP mixed braided rope 2 is formed by winding at least one rope tow 21 and at least one fiber tow 22.

From this, through the mixed use of rope made of hemp tow 21 and fibre tow 22, can make the mixed rope made of hemp tow 21 and fibre tow 22 both can reduce manufacturing cost, have the advantage that economy is suitable for, intensity is enough big simultaneously, and the reinforcement effect obviously promotes, and the construction shaping is convenient, still has corrosion resistance, greatly promotes the life and the practicality of mixed rope made of hemp.

Furthermore, resin is coated on the outer wall surface of the raw bamboo 1, and the FRP hybrid hemp rope 2 is soaked by the resin, so that the service life of the FRP hybrid hemp rope 2 can be prolonged.

According to the utility model discloses adopt former bamboo structure subassembly 100 of FRP thoughtlessly plaiting twine, because the utility model discloses an adopt former bamboo structure subassembly 100 of FRP thoughtlessly plaiting twine, FRP thoughtlessly plaits twine 2 materials light, but intensity is high, through adding fibre tow 22 in twine tow 21, can effectively promote FRP thoughtlessly plaiting twine 2's reinforcement intensity to the material is with low costs, FRP thoughtlessly plaits twine 2 is applicable to the former bamboo 1 structure of various height and volumes simultaneously, high durability and convenient use, and the construction shaping is convenient, still has corrosion resistance, and do not influence the original aesthetic property of former bamboo 1 structure.

Further, on one hand, the hemp rope tows 21 can serve as circumferential fibers to improve the bearing capacity of the raw bamboo 1, so that the stress defect of the raw bamboo 1 caused by the lack of the circumferential fibers is avoided, and the defect that the raw bamboo 1 is easy to crack along the grain is reduced; on the other hand, the hemp rope bundle 21 can be used as a protective layer to prevent the moisture exchange between the surface of the raw bamboo 1 and the external environment, slow down the drying shrinkage and cracking of the raw bamboo 1 and improve the durability. Moreover, the unique natural texture and artistic aesthetic feeling of the original bamboo 1 building can not be damaged by winding and wrapping the hemp tow 21, and the characteristics of the ecological building are fully reserved.

But the reinforcing strength of the winding reinforcing method of the hemp rope tows 21 is limited; and the twine of the twine bundle 21 is loosened with time to lose the reinforcing effect, so that it is necessary to develop a new method based on the original reinforcing method of the twine bundle 21.

Therefore, the hemp rope tow 21 in the embodiment of the present invention is added with the fiber reinforced composite material wound with the hemp rope tow, that is, the non-metallic material formed by mixing the high performance fiber such as the glass fiber, the carbon fiber and the like with the resin matrix and compounding the mixture through a certain processing technology. It has the advantages of light weight, high strength, convenient construction and formation, corrosion resistance, etc. Adding fiber tows 22 into the hemp tow 21 and then winding and wrapping the hemp tow, firstly, the appearance and the expansion of cracks on the raw bamboo 1 can be effectively inhibited, meanwhile, the bearing capacity and the deformation capacity of the raw bamboo 1 are greatly improved, the stress performance of the raw bamboo is more stable, and the upper limit of the bearing capacity reinforced by only adopting the hemp tow 21 is improved; secondly, the corrosion resistance of the hemp rope tows 21 wound outside the raw bamboo 1 can be improved, and the occurrence of dry shrinkage cracks is inhibited, so that the long-term performance of the raw bamboo 1 structure is improved; thirdly, under the condition of meeting the bearing capacity, the cost is greatly lower than that of a reinforcing method which is completely wrapped by the fiber reinforced composite material, the method is economical and applicable, the processing method is simple, the technologies of hand pasting, plate pasting and the like can be adopted, and large-scale mechanical equipment is not needed. Wherein the diameter of the FRP mixed braided hemp rope 2 is between 3 and 10 mm.

The raw bamboo 1 in the embodiment of the utility model can comprise a raw bamboo 1 structure with a ventral furrow, and can also comprise a raw bamboo 1 structure without a ventral furrow; the raw bamboo 1 can comprise the whole length of the raw bamboo 1 and also comprises the local part of the raw bamboo 1; the raw bamboo 1 can comprise raw bamboo 1 bamboo joints containing node partitions and raw bamboo 1 bamboo joints with node partitions planed.

Further, the resin may include epoxy resin, polyurethane resin, or bio-based resin, the fiber tow 22 may include at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber, aramid fiber, and hybrid fiber, and the hemp tow 21 may include at least one of flax and jute.

Optionally, the fiber tow 22 may be made of various materials, including glass fiber, carbon fiber, basalt fiber, aramid fiber, hybrid fiber, and the like.

In practical application, low price's glass fiber reinforced composite can be chooseed for use to fibre silk bundle 22, can adopt a small amount of superior performance but the higher carbon fiber reinforced composite of price when the atress requires very high, the embodiment of the utility model provides an in the FRP thoughtlessly weaves fibre silk bundle 22 in hemp rope 2 can select the use according to the in-service use condition.

As shown in fig. 5 to 7, the twine bundle 21 includes a plurality of strands, and the fiber bundle 22 includes at least one strand and is wound around each other.

Specifically, the FRP hybrid hemp rope 2 is formed by winding a fiber tow 22 and a hemp tow 21, wherein at least one fiber tow 22 is contained, so that the fiber tow 22 contained in the FRP hybrid hemp rope 2 can be ensured, and the fiber tow 22 can improve the strength of the FRP hybrid hemp rope 2.

In some embodiments of the present invention, the central bundle of the FRP hybrid hemp rope 2 shown in fig. 5 is a fiber tow 22, and a plurality of hemp rope tows 21 are wound around the fiber tow 22.

Specifically, as shown in fig. 5, the FRP hybrid hemp rope 2 is formed by winding one fiber tow 22 and six hemp tow 21, the fiber tow 22 is located at the center of the FRP hybrid hemp rope 2, and the six hemp tow 21 is wound around the one fiber tow 22, thereby forming the FRP hybrid hemp rope 2.

In some embodiments of the present invention, as shown in fig. 6, the central bundle of the hybrid hemp rope is a fiber tow 22, and the plurality of hemp rope tows 21 and the plurality of fiber tows 22 are arranged to cross each other and wound around the fiber tow 22.

Specifically, the center of the FRP hybrid hemp rope 2 is a fiber tow 22, and the plurality of fiber tows 21 and the plurality of fiber tows 22 are interlaced and wound around the fiber tow 22, thereby forming the FRP hybrid hemp rope 2 as shown in fig. 6.

In some embodiments of the present invention, as shown in fig. 7, the central bundle of the FRP hybrid hemp rope 2 is a hemp rope tow 21, and the multiple hemp rope tows 21 and the multiple fiber tows 22 are arranged to cross each other and wound around the fiber tow 22.

Specifically, as shown in fig. 7, the FRP hybrid hemp rope 2 has a hemp rope tow 21 at the center, and the plurality of fiber tows 22 and the plurality of hemp rope tows 21 are interlaced and wound around the hemp rope tow 21, thereby forming the FRP hybrid hemp rope 2 shown in fig. 7.

As shown in fig. 4 to 7, the FRP hybrid hemp rope 2 formed by winding the hemp rope strands 21 and the fiber strands 22 and the outer coating layer formed by the FRP hybrid hemp rope 2 annularly wrapped can serve as a structure similar to a ring fiber, and can sufficiently exert mechanical advantages of the both, thereby greatly improving the bearing capacity and the deformability of the raw bamboo 1, and simultaneously inhibiting the occurrence of the dry shrinkage cracks along the grain of the raw bamboo 1, and improving the long-term performance of the structure of the raw bamboo 1.

That is to say, the FRP co-woven hemp rope 2 as shown in fig. 4 to 7 can provide constraint force to the internal raw bamboo 1 structure, so as to improve the bearing capacity and ductility of the raw bamboo 1, and meanwhile, local hoop constraint or full-column long hoop constraint can be selected according to the actual stress condition, thereby achieving the purposes of reasonability, high efficiency and economy.

The following describes a manufacturing method of a raw bamboo structure assembly 100 using FRP hybrid hemp ropes according to an embodiment of the present invention with reference to fig. 1 to 3, where the raw bamboo structure assembly 100 using FRP hybrid hemp ropes is the aforementioned raw bamboo structure assembly 100 using FRP hybrid hemp ropes, and the manufacturing method includes the following steps:

and (2) polishing and cleaning the surface of the raw bamboo 1 to be reinforced to form a reinforced area on the outer wall of the raw bamboo 1, painting resin as structural adhesive on the reinforced area, winding the FRP mixed braided hemp rope 2 outside the reinforced area, and painting resin on the FRP mixed braided hemp rope 2 again to enable the FRP mixed braided hemp rope 2 containing the fiber tows 22 to be completely soaked and cured.

Specifically, the surface of the raw bamboo 1 to be reinforced is polished and cleaned, that is, the cracking area of the surface of the raw bamboo 1 is polished and cleaned, bamboo wax and floating dust on the surface layer are removed, and meanwhile, residual rainwater inside the bamboo tube of the raw bamboo 1 is cleaned.

According to the utility model discloses the manufacturing method of the former bamboo structure subassembly 100 of adoption FRP mixed braiding rope made of hemp, through utilizing the utility model discloses an adopt FRP mixed braiding rope made of hemp's former bamboo structure subassembly 100 uses this method reinforcing back, adopts FRP mixed braiding rope made of hemp structure subassembly 100's bearing capacity and ductility to promote by a wide margin, and the construction of this method is simple simultaneously, and the shaping mode is swift, easily operation, can also use with other reinforcing technique cooperations, for example embedding, reinforcing technique such as prestressing force combine to use, very big promotion this method's practicality.

Further, the FRP mixed braided hemp rope 2 is pasted on the reinforced area in the direction of 0-45 degrees.

Alternatively, at least one layer of the hemp rope without the fiber tows 22 can be wound on the outer side of the FRP co-woven hemp rope 2.

Because the FRP mixed braided hemp rope 2 is soaked in the resin and the building appearance is possibly influenced, on the basis of the method, a layer of hemp rope without fiber tows 22 can be wound on the outer side of the FRP mixed braided hemp rope 2, so that the unique natural texture and artistic aesthetic feeling of the original bamboo 1 building can be reflected, and the characteristics of the ecological building are fully reserved.

Optionally, the head end and the tail end of the FRP mixed braided hemp rope 2 can be respectively stuck to the outside of the original bamboo 1; or

The head end and the tail end of the FRP mixed braided hemp rope 2 can be stuck and connected together by resin.

Specifically, the head end and the tail end of the FRP mixed braided hemp rope 2 can be respectively bonded on the surface of the original bamboo 1 by coating resin on the surface of the original bamboo 1.

Or the head end and the tail end of the FRP mixed braided hemp rope 2 can be mutually bonded by coating resin on the head end and the tail end of the FRP mixed braided hemp rope 2.

Therefore, the manufacturing method of the raw bamboo structure assembly 100 adopting the FRP mixed braided hemp rope, which is provided by the embodiment of the utility model, adopts the traditional construction method, and has rich experience and convenient construction;

further, the utility model discloses the manufacturing approach of the former bamboo structure subassembly 100 of adoption FRP mixed weaving twine can use with other reinforcing techniques, if reinforcing techniques such as embedding, prestressing force combine together, has strengthened the practicality of the manufacturing approach of the former bamboo structure subassembly 100 of adoption FRP mixed weaving twine more.

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 present invention. 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 present invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an adopt former bamboo structure subassembly of FRP thoughtlessly weaving rope made of hemp which characterized in that includes:

raw bamboo;

the FRP mixed braided hemp rope is wound outside the original bamboo, and comprises: at least one hemp rope tow and at least one fiber tow are mutually wound to form the composite material;

and the resin is coated on the outer wall surface of the raw bamboo and used for infiltrating the FRP hybrid hemp rope.

2. A raw bamboo structural assembly using FRP co-braided hemp as claimed in claim 1, wherein said hemp tow comprises a plurality of strands, and said fiber tow comprises at least one strand and is twisted with each other.

3. The raw bamboo structure component adopting the FRP co-woven hemp rope as claimed in claim 2, wherein the central bundle of the FRP co-woven hemp rope is the fiber tow, and a plurality of the hemp rope tows are wound around the fiber tow.

4. A raw bamboo structural component using FRP co-woven hemp as claimed in claim 2, wherein the central bundle of the FRP co-woven hemp is the fiber tow, and a plurality of the hemp tow and a plurality of the fiber tow are arranged to cross each other and wound around the fiber tow.

5. The raw bamboo structural component adopting the FRP co-woven hemp rope as claimed in claim 2, wherein the central bundle of the FRP co-woven hemp rope is the hemp rope tow, and the plurality of hemp rope tows and the plurality of fiber tows are arranged to cross each other and wound centering on the fiber tow.