CN209907580U - Bamboo-concrete composite structure that gluing formula is connected - Google Patents
Bamboo-concrete composite structure that gluing formula is connected Download PDFInfo
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- CN209907580U CN209907580U CN201920655275.7U CN201920655275U CN209907580U CN 209907580 U CN209907580 U CN 209907580U CN 201920655275 U CN201920655275 U CN 201920655275U CN 209907580 U CN209907580 U CN 209907580U
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Abstract
The utility model provides a bamboo-concrete integrated configuration that gluing formula is connected, including bamboo roof beam, concrete slab, bonding block, screw, bonding block pastes in the top surface of bamboo roof beam along bamboo roof beam longitudinal interval dispersion, screw top-down comprises expansion end, nut, screw thread section and smooth circle section segmentation, the screw passes bonding block and partially nails in the roof beam body of bamboo roof beam through smooth circle section, the nut is fixed in the screw thread section through the screw thread and its bottom surface fastens in the top surface of bonding block, concrete slab wraps up expansion end, nut and bonding block completely, bamboo roof beam and concrete slab pass through bonding block and screw connection as an organic whole. The utility model discloses utilize bonding piece and screw as connecting material, not only can restrict the level between concrete slab and bamboo roof beam to sliding, still can restrict both vertical separation, the nut can restrain bonding piece and the ascending lift of concrete slab, and screw and adhesive have guaranteed the reliability that bamboo roof beam and concrete slab integrated configuration are connected to the combined action of bonding piece.
Description
Technical Field
The utility model relates to a bamboo-concrete integrated configuration, especially a bamboo-concrete integrated configuration and manufacturing method that the adhesive formula is connected belongs to civil construction field.
Background
The natural forest protection plan is implemented in China at present, wood resources are short, a large amount of imported wood is needed, bamboo resources are rich in China, the mechanical properties of bamboo are excellent, and bamboo, particularly engineering bamboo, is widely developed and utilized in the field of engineering structures. But the bamboo beam has low bending resistance bearing capacity, the bamboo and the concrete are combined to form the bamboo-concrete combined beam, the superior tensile property of the bamboo at the lower part and the stronger compression resistance of the concrete at the upper part are fully exerted, the bamboo-concrete combined beam has better mechanical property, and the connection mode is the key for the cooperative work of the bamboo and the concrete.
Aiming at different connection modes of the bamboo-concrete composite beam, a pin bolt type bamboo-concrete composite structure, a groove type bamboo-concrete composite structure, a steel plate type bamboo-concrete composite structure and the like exist, but the bamboo-concrete composite structures of various connection modes have respective defects, the pin bolt type bamboo-concrete composite structure has smaller sliding rigidity, large sliding deformation and low composite rigidity, the groove type bamboo-concrete composite structure has certain damage to the bamboo part, and the damage mode is brittle failure and lacks ductility; the steel plate type bamboo-concrete composite structure has large steel consumption and high manufacturing cost.
For example, chinese patent No. 201610463535.1 discloses a bamboo-concrete composite beam of a continuous connector, which uses an open-pore metal plate to connect a bamboo beam and a concrete layer into a whole composite beam, thereby solving the problem of low bending rigidity of a bamboo structure, but the amount of steel and adhesive is large, the economy is poor, and the construction is complicated. The development of a new reliable and economic connection mode is the basis of application and popularization of the bamboo-concrete combined structure.
Disclosure of Invention
The utility model aims at providing a bamboo-concrete integrated configuration and manufacturing approach that gluing formula is connected, mainly be applied to bamboo-concrete integrated configuration field. The utility model uses the bonding block and the screw to connect the bamboo beam and the concrete slab doubly, the bonding block with larger bonding section provides strong sliding rigidity between the concrete slab and the bamboo beam; the nut of the screw effectively inhibits the lifting of the bonding block; the enlarged ends of the screws limit the vertical separation between the concrete slab and the bamboo beam; the whole screw provides necessary ductility during the shearing deformation of the bonding block and provides auxiliary anchoring enhancement; the bonding blocks in discrete arrangement avoid local stress concentration, the bonding blocks and the screws can effectively improve the connection reliability, the whole structure system is decomposed into a plurality of components with small quantity, and the construction is convenient.
The utility model provides a bamboo-concrete composite structure of adhesive connection, which is characterized in that the bamboo-concrete composite structure comprises a bamboo beam, a concrete slab, a bonding block and screws, wherein the bamboo beam and the concrete slab are arranged in a T shape, the width of the concrete slab is larger than that of the bamboo beam, the bonding block is discretely bonded on the top surface of the bamboo beam along the longitudinal interval of the bamboo beam, the screws are formed by an enlarged end head, nuts, thread sections and smooth circle sections in a subsection way from top to bottom, the screws penetrate through the bonding block and are fixed inside the beam body of the bamboo beam through the part of the smooth circle sections, the nuts are fixed in the thread sections through the threads and the bottom surfaces of the nuts are fastened on the top surface of the bonding block, the diameter of the enlarged end head is larger than the, and the clear distance between the bottom surface of the enlarged end and the top surface of the nut is not less than 10mm, the concrete plate completely wraps the enlarged end, the nut and the bonding block, and the bamboo beam and the concrete plate are connected with the screw into a whole through the bonding block.
The bonding block is made of one of wood, bamboo, plastic and composite materials.
The bonding block is a prism or a cylinder, the height of the bonding block is not less than 10mm, and the bottom surface of the bonding block is bonded with the top surface of the bamboo beam into a whole through an adhesive.
The bonding block is preset with a vertical hole, the diameter of the hole is smaller than or equal to that of the screw, and the side wall of the screw and the inner wall of the hole of the bonding block are tightly extruded into a whole.
The enlarged end is arranged at the top end of the screw, the thickness of the enlarged end is not less than 3mm, and the distance from the bottom surface to the bottom surface of the concrete slab is not less than 30 mm.
A bamboo-concrete integrated configuration that gluing formula is connected pastes a plurality of bonding pieces on the top surface of bamboo roof beam through using the adhesive, is aided with the anchor of screw and strengthens being connected between bonding piece and the bamboo roof beam, and the top of screw sets up and enlarges the end and pour in the concrete slab on upper portion, accomplishes a bamboo-concrete integrated configuration that gluing formula is connected, and its step is as follows:
A. treatment of the pasting surface: carrying out rough treatment on the joint surface of the bamboo beam and the bonding block, cleaning the joint surface and keeping the joint surface in a dry and clean state;
B. sticking a bonding block: the bonding blocks are discretely bonded on the top surface of the bamboo beam at intervals along the longitudinal direction of the bamboo beam by using an adhesive, a vertical hole is preset in the center line of each bonding block, and the diameter of the hole is smaller than or equal to that of the screw;
C. implanting a screw: the bolt is composed of an enlarged end, a nut, a thread section and a smooth circular section from top to bottom in a segmented manner, penetrates through the bonding block and is partially nailed and fixed in the beam body of the bamboo beam through the smooth circular section;
D. screwing the nut: the nut is screwed and fixed on the threaded section through threads, the bottom surface of the nut is fastened on the top surface of the bonding block, the diameter of the enlarged end is more than 5mm larger than that of the threaded section and the smooth circular section, and the clear distance between the bottom surface of the enlarged end and the top surface of the nut is not less than 10 mm;
E. pouring an upper concrete plate: the bamboo beam and the concrete slab are connected into a whole through the bonding blocks and the screws.
The utility model discloses utilize bonding piece and screw as connecting material, not only can restrict the level between concrete slab and bamboo roof beam to sliding, still can restrict both vertical separation, the nut can restrain bonding piece and the ascending lift of concrete slab, screw and adhesive are to the combined action of bonding piece, the reliability that bamboo roof beam and concrete slab integrated configuration are connected has been guaranteed, on the implementation method, the whole that changes into parts, it is whole to install the combination formation in proper order, the part is small in quantity, simple process realizes standardized production easily. The utility model discloses following beneficial effect has:
the utility model provides a common connection method energy consumption height, cost height, rigidity low, readily releasable, the reliability is poor, the complicated scheduling problem of technology, have the characteristics of cost low, reliability height, simple process, can wide application in bamboo-concrete composite structure.
1) Compared with the common pin bolt type bamboo-concrete combined structure, the bonding block has the advantages of large bonding connection sliding rigidity, small steel consumption, low manufacturing cost, high multiple fixing reliability and high environmental benefit, and not only limits the horizontal sliding between the concrete slab and the bamboo beam, but also limits the vertical separation of the concrete slab and the bamboo beam by the screw.
2) Compared with the groove type bamboo-concrete combined structure, the groove does not need to be formed in the beam body of the bamboo beam, the beam body is prevented from being damaged, the bonding block which is pasted later obtains a similar combination effect with the groove type bamboo-concrete combined structure, but the process is simple, the construction is convenient, and the necessary ductility can be obtained by combining the bonding block with a screw.
3) The unique screw structure can obtain reliable anchoring of the bonding block and embedded bolting between the bonding block and the concrete, and provides multiple guarantees of connection between bamboo and concrete.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention.
FIG. 1 is a schematic perspective detail view of an adhesively bonded bamboo-concrete composite structural member;
FIG. 2 is a perspective view of an adhesively bonded bamboo-concrete composite structure;
FIG. 3 is a schematic plan view of an adhesively bonded bamboo-concrete composite structure;
FIG. 4 is a schematic elevation view of an adhesively bonded bamboo-concrete composite structure;
FIG. 5 is a schematic side elevation view of an adhesively bonded bamboo-concrete composite structure;
FIG. 6 is a cross-sectional view A-A of an adhesively bonded bamboo-concrete composite structure;
FIG. 7 is a B-B cross-sectional view of an adhesively bonded bamboo-concrete composite structure;
FIG. 8 is a C-C cross-sectional view of an adhesively bonded bamboo-concrete composite structure;
FIG. 9 is a D-D cross-sectional view of an adhesively bonded bamboo-concrete composite structure;
FIG. 10 is a process flow diagram of a method of manufacturing adhesively bonded bamboo-concrete composite structures;
FIG. 11 is an assembly view of a method of manufacturing an adhesively bonded bamboo-concrete composite structure;
FIG. 12 is a schematic illustration of a screw for use in a method of manufacturing an adhesively bonded bamboo-concrete composite structure;
FIG. 13 is a schematic view of a cylindrical bond block arrangement for a method of manufacturing adhesively bonded bamboo-concrete composite structures;
fig. 14 is a schematic view showing an arrangement of prism bonding blocks in a method for manufacturing an adhesively bonded bamboo-concrete composite structure.
FIG. 15 is a schematic view of the free arrangement of prismatic bonding blocks in a method of manufacturing an adhesively bonded bamboo-concrete composite structure.
In the drawing, 1 is a bamboo beam, 2 is a concrete slab, 3 is a bonding block, 4 is a screw, 401 is an enlarged end, 402 is a nut, 403 is a threaded section, and 404 is a smooth circular section.
Detailed Description
In order to clearly understand the technology, features, objects and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in the attached drawings, the utility model provides an adhesive type connected bamboo-concrete composite structure, which is characterized in that the bamboo-concrete composite structure comprises a bamboo beam 1, a concrete slab 2, an adhesive block 3 and a screw 4, the bamboo beam 1 and the concrete slab 2 are arranged in a T shape, the width of the concrete slab 2 is larger than that of the bamboo beam 1, the adhesive block 3 is discretely adhered on the top surface of the bamboo beam 1 at intervals along the longitudinal direction of the bamboo beam 1, the screw 4 is composed of an enlarged end 401, a nut 402, a thread section 403 and a smooth circular section 404 in a segmented manner from top to bottom, the screw 4 penetrates through the adhesive block 3 and is partially nailed in the beam body of the bamboo beam 1 through the smooth circular section 404, the nut 402 is fixed on the thread section through threads, the bottom surface of the enlarged end 401 is fastened on the top surface of the adhesive block 3, the diameter of the enlarged end 401 is larger than the diameters of the thread section 403 and the smooth circular section 404 by more than 5, the concrete slab 2 is completely wrapped by the enlarged end 401, the nut 402 and the bonding block 3, and the bamboo beam 1 and the concrete slab 2 are connected with the screw 4 into a whole through the bonding block 3.
The bonding block 3 is made of one of wood, bamboo, plastic and composite materials.
The bonding block 3 is a prism or a cylinder, the height is not less than 10mm, and the bottom surface of the bonding block is bonded with the top surface of the bamboo beam 1 into a whole through an adhesive.
The bonding block 3 is preset with a vertical hole, the diameter of the hole is smaller than or equal to that of the screw 4, and the side wall of the screw 4 and the inner wall of the hole of the bonding block 3 are tightly extruded into a whole.
The enlarged end 401 is arranged at the top end of the screw 4, the thickness of the enlarged end is not less than 3mm, and the distance from the bottom surface to the bottom surface of the concrete slab 2 is not less than 30 mm.
A bamboo-concrete integrated configuration that gluing formula is connected pastes a plurality of bonding pieces 3 on the top surface of bamboo roof beam 1 through using the adhesive, is aided with the anchor of screw 4 and strengthens being connected between bonding piece 3 and the bamboo roof beam 1, and the top of screw 4 sets up enlarges end 401 and pours in concrete slab 2 on upper portion, accomplishes a bamboo-concrete integrated configuration that gluing formula is connected, its step as follows:
A. treatment of the pasting surface: the method comprises the following steps of (1) carrying out rough treatment on a joint surface of a bamboo beam 1 and a bonding block 3, cleaning the joint surface and keeping the joint surface in a dry and clean state;
B. sticking a bonding block: the bonding blocks 3 are discretely adhered to the top surface of the bamboo beam 1 at intervals along the longitudinal direction of the bamboo beam 1 by using an adhesive, a vertical hole is preset in the center line of each bonding block 3, and the diameter of each hole is smaller than or equal to that of each screw 4;
C. implanting a screw: the screw 4 is composed of an enlarged end 401, a nut 402, a thread section 403 and a smooth circular section 404 from top to bottom in a segmented manner, and the screw 4 penetrates through the bonding block 3 and is partially nailed and fixed in the beam body of the bamboo beam 1 through the smooth circular section 404;
D. screwing the nut: the nut 402 is screwed and fixed on the threaded section 403 through threads, the bottom surface of the nut 402 is fastened on the top surface of the bonding block 3, the diameter of the enlarged end head 401 is more than 5mm larger than that of the threaded section 403 and the smooth circular section 404, and the clear distance between the bottom surface of the enlarged end head 401 and the top surface of the nut 402 is not less than 10 mm;
E. pouring an upper concrete plate: a template is erected on the upper portion of a bamboo beam 1, a concrete plate 2 is poured, the concrete plate 2 is completely wrapped by an enlarged end 401, a nut 402 and a bonding block 3, and the bamboo beam 1 and the concrete plate 2 are connected into a whole through the bonding block 3 and a screw 4.
The utility model discloses utilize bonding piece and screw as connecting material, not only can restrict the level between concrete slab and bamboo roof beam to sliding, still can restrict both vertical separation, the nut can restrain bonding piece and the ascending lift of concrete slab, and screw and adhesive have guaranteed the reliability that bamboo roof beam and concrete slab integrated configuration are connected to the combined action of bonding piece. The utility model provides a common connection method energy consumption height, cost height, rigidity low, readily releasable, the reliability is poor, the complicated scheduling problem of technology, have the characteristics of cost low, reliability height, simple process, can wide application in bamboo-concrete composite structure.
Claims (5)
1. The bamboo-concrete combined structure is characterized by comprising a bamboo beam (1), a concrete plate (2), bonding blocks (3) and screws (4), wherein the bamboo beam (1) and the concrete plate (2) are arranged in a T shape, the width of the concrete plate (2) is larger than that of the bamboo beam (1), the bonding blocks (3) are longitudinally and discretely adhered to the top surface of the bamboo beam (1) at intervals along the bamboo beam (1), the screws (4) are formed by expanding end heads (401), nuts (402), threaded sections (403) and smooth circular sections (404) in a segmented manner from top to bottom, the screws (4) penetrate through the bonding blocks (3) and are partially nailed in the beam body of the bamboo beam (1) through the smooth circular sections (404), the nuts (402) are fixedly screwed in the threaded sections (403) and the bottom surfaces of the nuts are fastened to the top surface of the bonding blocks (3), the diameter of the expanding end heads (401) is larger than the diameters of the threaded sections (403) and the smooth circular sections (404) by more than 5mm, and the clear distance between the bottom surface of the enlarged end (401) and the top surface of the nut (402) is not less than 10mm, the concrete plate (2) completely wraps the enlarged end (401), the nut (402) and the bonding block (3), and the bamboo beam (1) and the concrete plate (2) are connected with the screw (4) into a whole through the bonding block (3).
2. The bamboo-concrete composite structure of claim 1, wherein the bonding block (3) is made of one of wood, bamboo, plastic and composite material.
3. An adhesively bonded bamboo-concrete composite structure as claimed in claim 1, wherein said bonding block (3) is a prism or cylinder with a height of not less than 10mm, and its bottom surface is bonded to the top surface of the bamboo beam (1) by adhesive.
4. The bamboo-concrete composite structure of claim 1, wherein the bonding block (3) is pre-provided with a vertical hole, the diameter of the hole is smaller than or equal to that of the screw (4), and the side wall of the screw (4) and the inner wall of the hole of the bonding block (3) are tightly extruded into a whole.
5. An adhesively bonded bamboo-concrete composite structure as claimed in claim 1, wherein said enlarged head (401) is provided at the top end of the screw (4) and has a thickness of not less than 3mm and a bottom surface spaced from the bottom surface of the concrete slab (2) by not less than 30 mm.
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| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
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Assignee: Zhenjiang Heng An Civil Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000368 Denomination of utility model: A bamboo concrete composite structure with adhesive connection Granted publication date: 20200107 License type: Common License Record date: 20201212 Assignee: BEIJING JIUTONGQU TESTING TECHNOLOGY Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000367 Denomination of utility model: A bamboo concrete composite structure with adhesive connection Granted publication date: 20200107 License type: Common License Record date: 20201212 Assignee: Hefei Shuang Dao run Highway Engineering Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000366 Denomination of utility model: A bamboo concrete composite structure with adhesive connection Granted publication date: 20200107 License type: Common License Record date: 20201212 |