CN212478281U - Prefabricated assembly type rubbing bending member - Google Patents
Prefabricated assembly type rubbing bending member Download PDFInfo
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- CN212478281U CN212478281U CN202021389082.0U CN202021389082U CN212478281U CN 212478281 U CN212478281 U CN 212478281U CN 202021389082 U CN202021389082 U CN 202021389082U CN 212478281 U CN212478281 U CN 212478281U
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Abstract
The utility model discloses a prefabricated assembled rubbing flexural member, including setting up the column connection spare at both ends, one that two column connection spare are relative serves and all is provided with the sheet connecting portion, is connected with the FRP sheet that the multi-disc that sets up along structure roof beam width direction coincide in turn made by FRP fiber bundle between two sheet connecting portions and the desulfurization wood sheet that the multi-disc was made by desulfurization wood fiber bundle, and the bottom surface of FRP sheet and the equal perpendicular to structure roof beam of desulfurization wood sheet, the inside packing of structure roof beam has the foaming fiber structure to glue. The utility model discloses by FRP sheet and inorganic materialization processing's timber sheet as the atress main part, glue through filling the foaming fiber structure and guarantee that the two atress warp in coordination, arrange through reasonable material, the two material advantage of full play under the prerequisite of guaranteeing the atress, can reduce the structure dead weight, reduce the component size, improve component durability and anti-seismic performance, demand that satisfies building structure that can be better.
Description
Technical Field
The utility model belongs to the technical field of building element, concretely relates to prefabricated assembled rubbing flexural member.
Background
The reinforced concrete flexural member occupies important proportion in the industrial and agricultural structure, and has the advantages of good integrity, good modellability, durability and fire resistance. But also has disadvantages: the self-weight is great, the concrete is brittle and cracked, the formwork is difficult to support, the maintenance period is long, the steel bar is corroded, the reinforcement is difficult to repair, and the like. There are mainly the following problems:
1. the traditional reinforced concrete flexural member has complex manufacturing process, needs the processes of formwork support, reinforcement binding, concrete pouring and maintenance and has longer period;
2. the traditional reinforced concrete flexural member needs to be cast and cured in situ, so that the construction period is long;
3. the phenomenon that concrete is peeled off due to steel bar corrosion is particularly prominent in the marine environment, mechanical properties such as durability and strength of a bent member are easy to be reduced due to the steel bar corrosion after the bent member is used for a short period, so that the maintenance difficulty is greatly increased, and even more, the bearing capacity is lost, so that marine safety accidents are caused;
4. the concrete is difficult to repair after cracking, and the concrete works with cracks to further cause the corrosion of the steel bars;
the above discussion is intended to introduce the reader to various aspects of art that may be related to various aspects of the present invention, which are described and/or claimed below, and is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present invention, and it is therefore to be understood that such discussion is to be read in this light, and not as an admission of prior art.
SUMMERY OF THE UTILITY MODEL
For at least one among the solution above-mentioned technical problem, the utility model provides a prefabricated assembled rubbing flexural member.
The purpose of the utility model is realized through the following technical scheme:
the prefabricated assembly type rubbing bending member is a structural beam and comprises column connecting pieces arranged at two ends of the structural beam, sheet connecting parts are arranged at opposite ends of the two column connecting pieces, a plurality of FRP sheets made of FRP fiber bundles and a plurality of desulfurized wood sheets made of desulfurized wood fiber bundles, which are alternately overlapped along the width direction of the structural beam, are connected between the sheet connecting parts of the two column connecting pieces, the FRP sheets and the desulfurized wood sheets are perpendicular to the bottom surface of the structural beam, the FRP sheets are composed of a main FRP strip and a plurality of arc branch FRP strips, which are arranged at the bottom of the structural beam, two ends of the main FRP strip are connected with the sheet connecting parts, the middle parts of the arc branch FRP strips are connected with the middle parts of the main FRP strips, two ends of the arc branch FRP strips extend upwards and are connected to the sheet connecting parts or the top surface of the structural beam, the desulfurization wood sheet comprises a main desulfurization wood chip strip and a plurality of arc branch desulfurization wood chip strips that set up at the structure roof beam top, and the both ends and the sheet connecting portion of main desulfurization wood chip strip are connected, and the middle part of main desulfurization wood chip strip of an arc branch desulfurization wood chip strip are connected, and the both ends downwardly extending of an arc branch desulfurization wood chip strip is connected to the bottom surface of sheet connecting portion or structure roof beam, the inside packing of structure roof beam has the foaming fiber structure to glue.
As a further improvement, the fiber length direction of the FRP fiber bundles in the FRP sheet is substantially parallel to the length direction of the structural beam.
As a further improvement, the fiber length direction of the desulfurized wood fiber bundle in the desulfurized wood sheet is substantially parallel to the length direction of the structural beam.
As a further improvement, the sheet connecting part is composed of a plurality of sheet steel plates arranged at intervals along the width direction of the structural beam, and the end parts of the FRP sheet and the desulfurized wood sheet are inserted into the gap between the sheet steel plates and are fixed by gluing or are fixed by gluing attached to the side surfaces of the sheet steel plates.
As a further improvement, three sheet connecting portions are arranged on the column connecting member, the three sheet connecting portions are arranged at intervals along the height direction of the structural beam, the number of the arc-shaped branch FRP strips and the number of the arc-shaped branch desulfurization wood strips are three, the end portions of the main desulfurization wood strip and the two arc-shaped branch FRP strips are respectively connected to the three sheet connecting portions, the end portion of the other arc-shaped branch FRP strip is connected to the top surface of the structural beam, the end portions of the main desulfurization wood strip and the two arc-shaped branch desulfurization wood strips are respectively connected to the three sheet connecting portions, and the end portion of the other arc-shaped branch desulfurization wood strip is connected to the bottom surface of the structural beam.
As a further improvement, the two pillar connecting pieces are provided with anchoring studs at the ends facing away from each other.
As a further improvement, a plurality of plate connecting pieces which are inserted between the FRP sheet and the desulfurized wood sheet are arranged on the structural beam.
As a further improvement, the FRP fiber bundle is formed by mixing high-strength fibers and low-strength fibers.
The utility model provides a prefabricated assembly type rubbing flexural member, which is a structural beam and comprises column connecting pieces arranged at both ends of the structural beam, wherein one end of each column connecting piece opposite to the other end is provided with a sheet connecting part, a plurality of FRP sheets made of FRP fiber bundles and a plurality of desulfurized wood sheets made of desulfurized wood fiber bundles, which are alternately superposed along the width direction of the structural beam, are connected between the sheet connecting parts of the two column connecting pieces, the FRP sheets and the desulfurized wood sheets are perpendicular to the bottom surface of the structural beam, the FRP sheets are composed of a main FRP strip and a plurality of arc-shaped strips arranged at the bottom of the structural beam, both ends of the main FRP strip are connected with the sheet connecting parts, the middle parts of the arc-shaped FRP strips are connected with the middle parts of the main FRP strips, both ends of the arc-shaped FRP strips extend upwards and are connected to the sheet connecting parts or the top surface of the structural beam, the desulfurization wood sheet comprises a main desulfurization wood chip strip and a plurality of arc branch desulfurization wood chip strips that set up at the structure roof beam top, and the both ends and the sheet connecting portion of main desulfurization wood chip strip are connected, and the middle part of main desulfurization wood chip strip of an arc branch desulfurization wood chip strip are connected, and the both ends downwardly extending of an arc branch desulfurization wood chip strip is connected to the bottom surface of sheet connecting portion or structure roof beam, the inside packing of structure roof beam has the foaming fiber structure to glue. The utility model discloses to traditional Reinforced concrete flexural member from great, the work progress is complicated loaded down with trivial details, the easy corrosion scheduling problem of reinforcing bar, based on the high ductility of FRP (Fiber Reinforced Polymer Fiber Reinforced composite) material, light, high anticorrosive and fatigue resistance performance scheduling characteristic, the utility model discloses by FRP sheet and inorganic materialization processing's timber sheet as the atress main part, glue through filling the foaming Fiber structure and guarantee the two atress warp in coordination, arrange through reasonable material, the two material advantage of full play, under the prerequisite of guaranteeing the atress, can reduce the structure dead weight, reduce the component size, improve component durability and anti-seismic performance, demand that satisfies building structure that can be better.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural diagram of an FRP sheet and a desulfurized wood sheet of a prefabricated rubbing flexural member.
FIG. 2 is a schematic diagram of a column connection for a prefabricated assembly type topology flexural component.
Fig. 3 is a schematic view of the connection structure of FRP sheets and column connectors of prefabricated rubbing bending members.
FIG. 4 is a side view of the FRP sheet and the desulfurized wood sheet of the prefabricated rubbing bending member after being connected with the column connecting piece.
FIG. 5 is a perspective view of the FRP sheet and the desulfurized wood sheet of the prefabricated rubbing flexural member after being connected with the column connecting member.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
The embodiment of the utility model provides a prefabricated assembled rubbing flexural member, its core lies in to traditional reinforced concrete flexural member from great, the work progress is complicated loaded down with trivial details, the easy corrosion scheduling problem of reinforcing bar, based on characteristics such as FRP material's high ductility, the light, high anticorrosive and fatigue resistance ability, design a novel assembled flexural member, the design method is based on material property, analytical method is based on rubbing the benefit and optimizes, form a novel flexural member, this component is as the atress main part by FRP veneer sheet and the inorganic materialization wood sheet of handling, arrange through reasonable material, the two material advantage of full play. Under the stress state, the member can reduce the self weight of the structure, reduce the size of the member, improve the durability and the anti-seismic performance of the member and well meet the requirements of building structures.
Combine fig. 1 to fig. 5 to show, the embodiment of the utility model provides a prefabricated assembly type rubbing curved member, prefabricated assembly type rubbing curved member is the structure roof beam, including setting up the column connecting piece 1 at structure roof beam both ends, column connecting piece 1 includes the main part that the steel sheet was made, all be provided with sheet connecting portion 11 on the relative one end (side) of main part of two column connecting pieces 1, be connected with between sheet connecting portion 11 of two column connecting pieces 1 along the alternative coincide of structure roof beam width direction setting FRP sheet 2 that FRP fibre bundle made and desulfurization wood sheet 3 that the multi-disc was made by desulfurization wood fibre bundle. The column connecting piece 1 plays a role in positioning the size of the flexural member, restraining the FRP sheet and the desulfurized wood sheet and ensuring stability, and the position and the specific size of the column connecting piece are determined according to the flexural member required by specific design. The FRP sheet and the desulfurized wood sheet are respectively processed into sheets with the thickness of 3-5mm by fiber bundles of respective materials so as to avoid the stress concentration phenomenon of the materials, and in addition, the sheet-shaped structure can improve the cementing force between the FRP sheet and the desulfurized wood sheet. The FRP sheet 2 is a sheet material made of a Fiber Reinforced composite material (Fiber Reinforced Polymer, or Fiber Reinforced Plastic, abbreviated as FRP), the Fiber Reinforced composite material is specifically a composite material formed by winding, molding or pultrusion a reinforcing Fiber material, such as glass Fiber, carbon Fiber, aramid Fiber, and the like, with a base material, and the desulfurized wood Fiber bundle used in the desulfurized wood sheet 3 is desulfurized before use to reduce the content of organic matters in the wood, and the strength and durability can be improved by the treated wood Fiber. The FRP sheet material 2 and the desulfurized wood sheet material 3 are both vertical to the bottom surface of the structural beam, the length directions of the FRP sheet material 2 and the desulfurized wood sheet material 3 are parallel to the length direction of the structural beam, and the plane direction of the FRP sheet material 2 and the desulfurized wood sheet material 3 is vertical to the bottom surface of the structural beam. The FRP sheet material 2 comprises a main FRP strip 21 and a plurality of arc-shaped branch FRP strips 22 arranged at the bottom of the structural beam, two ends of the main FRP strip 21 are connected with the sheet material connecting part 11, the middle part of the arc-shaped branch FRP strip 22 is connected with the middle part of the main FRP strip 21, two ends of the arc-shaped branch FRP strip 22 extend upwards and are connected to the sheet material connecting part 11 or the top surface of the structural beam, the desulfurized wood sheet material 3 comprises a main desulfurized wood sheet strip 31 and a plurality of arc-shaped branch desulfurized wood sheet strips 32 arranged at the top of the structural beam, two ends of the main desulfurized wood sheet strip 31 are connected with the sheet material connecting part 11, the middle part of the arc-shaped branch desulfurized wood sheet strip 32 is connected with the middle part of the main desulfurized wood sheet strip 31, two ends of the arc-shaped branch desulfurized wood sheet strips 32 extend downwards and are connected to the sheet material connecting part 11 or the bottom surface of the structural beam, and the structural beam is filled.
As a further preferred embodiment, the fiber length direction of the FRP fiber bundles in the FRP sheet 2 is substantially parallel to the length direction of the structural beam, and the fiber length direction of the desulfurized wood fiber bundles in the desulfurized wood sheet 3 is substantially parallel to the length direction of the structural beam. Therefore, the FRP fiber bundles are reasonably arranged, the FRP fiber bundles are ensured to be arranged along the main tensile stress direction of the member, the strength of the FRP material can be fully exerted, the wood fiber bundles are arranged along the main compressive stress direction of the bent member, and the compressive strength of wood is fully exerted.
In a further preferred embodiment, the sheet connecting portion 11 is formed by a plurality of sheet-shaped steel plates spaced apart in the width direction of the structural beam, and the end portions of the FRP sheet 2 and the desulfurized wood sheet 3 are inserted into the gap between the sheet-shaped steel plates and adhesively fixed thereto or adhesively fixed thereto by being adhered to the side surfaces of the sheet-shaped steel plates. Thus, the column connecting member 1 can play a role of fixing and restraining the FRP sheet and the desulfurized wood sheet better.
As a further improvement, three sheet connecting portions 11 are arranged on the column connecting member 1, the three sheet connecting portions 11 are arranged at intervals along the height direction of the structural beam, the number of the arc-shaped branch FRP strips 22 and the number of the arc-shaped branch desulfurized wood strips 32 are three, the end portions of the main desulfurized wood strip 31 and the two arc-shaped branch FRP strips 22 are respectively connected to the three sheet connecting portions 11, the end portion of the other arc-shaped branch FRP strip 22 is connected to the top surface of the structural beam, the end portions of the main desulfurized wood strip 31 and the two arc-shaped branch desulfurized wood strips 32 are respectively connected to the three sheet connecting portions 11, and the end portion of the other arc-shaped branch desulfurized wood strip 32 is connected to the bottom surface of the structural beam. In this way, both ends of each FRP sheet 2 and each desulfurized wood sheet 3 can be connected to the three sheet connecting portions 11, further improving the stability of the connecting structure.
As a further preferred embodiment, the two opposite ends of the column connecting piece 1 are provided with an anchoring bolt 12, and the anchoring bolt 12 can be detachably connected with the main body of the column connecting piece 1, so that the prefabricated rubbing bending member can be in dry connection with the column through the anchoring bolt 12, and the field construction period is reduced on the basis of ensuring the connection quality; a plurality of plate connection members 4 interposed between the FRP sheets 2 and the desulfurized wood sheets 3 are provided on the structural beam. The board connecting piece 4 adopts pre-buried mode to distribute inside the member that bends, and the board connecting piece can restrain the displacement of panel horizontal direction and can mainly bear the pressure effect when making panel just atress, and the better compressive property's of full play desulfurization timber along the fibre direction characteristic.
As a further preferred embodiment, the FRP fiber bundle is composed of a mixture of high-strength fibers and low-strength fibers. Therefore, the FRP fiber bundles comprise fibers with different mechanical properties, the fibers are configured according to different performance effects, the high-strength fibers are mainly used for providing the initial deformation strength, the deformation of the component under the load deformation condition is further reduced, the low-strength fibers are obviously stressed when the FRP fiber bundles are greatly deformed, and the brittle failure of the structure is avoided.
The embodiment of the utility model provides a prefabricated assembled rubbing flexural member, the atress skeleton system has been established according to rubbing optimization algorithm, simultaneously respectively according to the different atress characteristic of FRP material and desulfurization timber, in the skeleton system, arrange the FRP sheet in the tension part (structure roof beam lower part) and bear the pulling force effect, arrange the desulfurization wood sheet in the compression part (structure roof beam upper portion) as the pressurized material, through with FRP tow rational arrangement, guarantee that FRP tow follows the member owner and draw stress direction, can full play FRP material intensity, arrange the wood fiber direction along flexural member owner's compressive stress direction, full play timber compressive strength, wood sheet and FRP sheet pass through the adhesive bond alternative distribution of structure, guarantee the whole atress of structure. The embodiment of the utility model provides a prefabricated assembled rubbing flexural member is glued through filling the foaming fiber structure and is guaranteed the two deformation of atress in coordination by FRP sheet and inorganic materialization's timber sheet as the atress main part, arranges through reasonable material, and the two material advantage of full play can reduce the structure dead weight, reduce the component size, improve component durability and anti-seismic performance under the prerequisite of guaranteeing the atress, the demand that satisfies building structure that can be better.
The embodiment of the utility model provides a still provide a manufacturing method as above prefabricated assembled rubbing flexural member, include following step:
s1, assembling a die, forming a die cavity which is matched with the shape of the prefabricated extension bending member in the die, and fixing the column connecting pieces 1 at two ends of the die cavity;
s2, fixing the FRP sheet 2 by brushing structural adhesive from one side of the mold cavity, fixing the desulfurized wood sheet 3 by brushing structural adhesive, and repeating the steps to complete the superposition of the FRP sheet 2 and the desulfurized wood sheet 3, wherein the FRP sheet and the desulfurized wood sheet form a continuous multilayer stressed structure. In addition, the FRP sheet is positioned on the outer side of the member, the durability of the interior wood is improved, and the plate connecting piece 4 is embedded in a specified position in the process of laminating the FRP sheet 2 and the desulfurized wood sheet 3;
s3, filling the residual space after the FRP sheet 2 and the desulfurized wood sheet 3 in the mold cavity are superposed, and filling gaps among the FRP sheet 2, the desulfurized wood sheet 3 and the mold cavity by adopting low-density foamed fiber structural adhesive to protect the FRP sheet and the wood sheet, play a role in structural support and improve the in-plane stability of the FRP sheet and the desulfurized wood sheet; the fire resistance of the component is improved;
s4, forming a whole through curing, demolding after curing, completing the manufacture of the prefabricated assembly type rubbing bending member, and subsequently performing the processes of hoisting, transporting and installing
As a further preferable embodiment, in step S2, the FRP fiber bundles in the FRP sheet 2 are placed in a tensioned state when the FRP sheet 2 is fixed, in accordance with the design requirements of the length and width of the prefabricated rubbing curved member. Like this, because the FRP tow of the FRP sheet material in the prefabricated assembly type rubbing flexural member who makes is in taut state, better bearing tension prevents that prefabricated assembly type rubbing flexural member warp.
The embodiment of the utility model provides a prefabricated assembled rubbing flexural member preparation method can realize the mill prefabrication of prefabricated assembled rubbing flexural member, simplifies the site operation process, reduces site operation cycle, and batch production in mill guarantees that the size precision and the mechanical properties of prefabricated assembled rubbing flexural member are stable.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the invention.
In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications can be made by those skilled in the art, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.
Claims (7)
1. A prefabricated assembly type rubbing bending member is a structural beam and is characterized by comprising column connecting pieces (1) arranged at two ends of the structural beam, sheet connecting parts (11) are arranged at opposite ends of the two column connecting pieces (1), a plurality of FRP sheets (2) made of FRP fiber bundles and a plurality of desulfurized wood sheets (3) made of desulfurized wood fiber bundles, which are alternately overlapped along the width direction of the structural beam, are connected between the sheet connecting parts (11) of the two column connecting pieces (1), the FRP sheets (2) and the desulfurized wood sheets (3) are perpendicular to the bottom surface of the structural beam, each FRP sheet (2) is composed of a main FRP strip (21) and a plurality of arc-shaped branch FRP strips (22) arranged at the bottom of the structural beam, two ends of the main FRP strip (21) are connected with the sheet connecting parts (11), the middle part of the arc-shaped branch FRP strip (22) is connected with the middle part of the main FRP strip (21), the two ends of the arc-shaped branch FRP strip (22) extend upwards and are connected to the top surface of the sheet connecting part (11) or the structural beam, the desulfurized wood sheet (3) is composed of a main desulfurized wood sheet strip (31) and a plurality of arc-shaped branch desulfurized wood sheet strips (32) which are arranged at the top part of the structural beam, the two ends of the main desulfurized wood sheet strip (31) are connected with the sheet connecting part (11), the middle part of the arc-shaped branch desulfurized wood sheet strip (32) is connected with the middle part of the main desulfurized wood sheet strip (31), the two ends of the arc-shaped branch desulfurized wood sheet strip (32) extend downwards and are connected to the bottom surface of the sheet connecting part (11) or the structural beam, and the structural beam is filled with foamed fiber.
2. The prefabricated assembly type topological flexural member of claim 1, wherein: the fiber length direction of the FRP fiber bundle in the FRP sheet (2) is substantially parallel to the length direction of the structural beam.
3. The prefabricated assembly type topological flexural member of claim 1, wherein: the fiber length direction of the desulfurized wood fiber bundle in the desulfurized wood sheet (3) is basically parallel to the length direction of the structural beam.
4. The prefabricated assembly type topological flexural member of claim 1, wherein: the sheet connecting part (11) is composed of a plurality of sheet steel plates arranged at intervals in the width direction of the structural beam, and the end parts of the FRP sheet (2) and the desulfurized wood sheet (3) are inserted into gaps between the sheet steel plates and are fixed by gluing or are fixed by gluing attached to the side surfaces of the sheet steel plates.
5. The prefabricated rubbing flexural member of claim 4, wherein: be provided with three sheet connecting portion (11) on column connection spare (1), three sheet connecting portion (11) set up along the direction of height interval of structure roof beam, the branch FRP strip of arc (22), the branch desulfurization wood chip strip of arc (32) are three, and the tip of main desulfurization wood chip strip (31) and two branch FRP strip of arc (22) is connected to three sheet connecting portion (11) respectively, and the tip of another branch FRP strip of arc (22) is connected to the top surface of structure roof beam, the tip of main desulfurization wood chip strip (31) and two branch desulfurization wood chip strips of arc (32) is connected to three sheet connecting portion (11) respectively, and the tip of another branch desulfurization wood chip strip of arc (32) is connected to the bottom surface of structure roof beam.
6. The prefabricated assembly type topology flexural member of any one of claims 1 to 5, characterized in that: the ends of the two column connecting pieces (1) which are back to back are provided with anchoring studs (12).
7. The prefabricated assembly type topology flexural member of any one of claims 1 to 5, characterized in that: and a plurality of plate connecting pieces (4) which are inserted between the FRP sheet (2) and the desulfurized wood sheet (3) are arranged on the structural beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021389082.0U CN212478281U (en) | 2020-07-15 | 2020-07-15 | Prefabricated assembly type rubbing bending member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021389082.0U CN212478281U (en) | 2020-07-15 | 2020-07-15 | Prefabricated assembly type rubbing bending member |
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| CN212478281U true CN212478281U (en) | 2021-02-05 |
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| CN202021389082.0U Active CN212478281U (en) | 2020-07-15 | 2020-07-15 | Prefabricated assembly type rubbing bending member |
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