Inorganic glue composite bamboo-wood structure beam column joint and machining and connecting method

Abstract

The invention discloses an inorganic glue composite bamboo-wood structure beam-column joint and a machining and connecting method, and belongs to the technical field of constructional engineering.The inorganic glue composite bamboo-wood structure beam-column joint comprises a plurality of bamboo-wood beams and bamboo-wood columns, and the single bamboo-wood beams and the single bamboo-wood columns are connected through a plurality of end joint pull rods; one end of the end node pull rod is inserted into the end face of the bamboo beam and connected with the connecting piece, the connecting piece penetrates through one side of the bamboo beam, and the other end of the end node pull rod penetrates through the bamboo column and is in threaded connection with a nut. The single bamboo-wood column is connected with the bamboo-wood beams oppositely arranged on the two sides of the single bamboo-wood column through a plurality of middle node pull rods, the two ends of each middle node pull rod transversely penetrate through the corresponding bamboo-wood column and are inserted into the end faces of the two corresponding bamboo-wood beams respectively, and the two ends of each middle node pull rod are connected with the connecting pieces penetrating through one side of the corresponding bamboo-wood beam. The beam column joint forms a multi-pull-rod cooperative force transmission system, force flow can be evenly transmitted to the bamboo columns through the multiple pull rods, and local stress concentration is avoided.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to an inorganic adhesive composite bamboo and wood structure beam-column joint, processing and connection method. Background Technology

[0002] Bamboo and wood are unique among all building materials in that they can grow naturally and are environmentally friendly materials that conform to sustainable development. Inorganic adhesive composite bamboo is a new type of green building material, which uses bamboo as the matrix and binds bamboo fibers and other components together with inorganic adhesives.

[0003] In order to improve the ease of beam-column connection, existing inorganic adhesive composite bamboo and wood structures use connecting pins and positioning pins to connect beams and columns (such as publication number CN201746941U). The two ends of the connecting pin are inserted between the beam and the column respectively, and positioning pins are inserted on the beam and the column. The positioning pins are connected to the connecting pins to fix the position of the positioning pins, thereby achieving a fixed connection between the beam and the column. This avoids stress concentration at the beam-column connection and makes the beam-column connection stronger.

[0004] However, the existing method of connecting bamboo and wooden columns and beams using positioning pins and connecting pins is only suitable for connecting a single column and a beam. When a single column is connected to two beams at the same time, multiple connecting pins are required to connect to the beams separately, which is complicated. Furthermore, the integrity and connection strength of the beam-column joint are poor. In addition, the column and beam are only connected by a single connecting pin, resulting in a single force transmission path. This makes it easy for loosening and displacement to occur, and it is impossible to form a continuous and uniform force transmission path. Summary of the Invention

[0005] To address the technical problems in the existing method of connecting bamboo and wood columns and beams using positioning pins and connecting pins, which results in poor integrity and connection strength of the beam-column joints, and the fact that the columns and beams are connected by only one connecting pin, leading to a single force transmission path and easy loosening and displacement, thus failing to form a continuous and uniform force transmission path, this invention provides an inorganic adhesive composite bamboo and wood structure beam-column joint, processing, and connection method.

[0006] The technical solution of this invention is as follows: This invention provides an inorganic adhesive composite bamboo-wood structure beam-column joint, comprising: several bamboo-wood beams and bamboo-wood columns; a single bamboo-wood beam is connected to a single bamboo-wood column by several end node tie rods, one end of which is inserted into the end face of the bamboo-wood beam and connected to a connector, the connector passing through one side of the bamboo-wood beam; the other end of which passes through the bamboo-wood column and is threaded with a nut; a single bamboo-wood column is connected to bamboo-wood beams on both sides by several intermediate node tie rods, both ends of which pass laterally through the bamboo-wood column and are respectively inserted into the end faces of the two corresponding bamboo-wood beams; both ends of the intermediate node tie rod are connected to a connector passing through one side of the bamboo-wood beam. The connection is achieved through multiple end / intermediate node tie rods, which is suitable for end connections of "single column to single beam" and can also efficiently solve intermediate connection scenarios of "single column to double beam". It eliminates the need for multiple independent connecting pins, reduces assembly steps, and significantly reduces operational complexity. Moreover, the combination connection method of tie rods and connectors forms a multi-tie rod collaborative force transmission system for beam-column nodes. Compared with the force transmission path of a single connecting pin, the force flow can be evenly transmitted to the bamboo and wood column through multiple tie rods, avoiding local stress concentration. At the same time, the tie rods run through the bamboo and wood beams and bamboo and wood columns, improving the overall integrity of the node and enhancing the connection strength. The end node tie rods are fixed by nuts and threads, and the intermediate node tie rods are double-fixed by connectors at both ends, which can eliminate the fit gaps, effectively prevent loosening and displacement, and form a continuous and uniform force transmission path. Especially under horizontal seismic loads or vertical eccentric loads, the stability of the node is significantly enhanced.

[0007] Preferably, the end node tie rod includes a first end node tie rod, one end of which has a threaded hole, and the other end has an external thread; the connector includes an insert rod, one end of which has an external thread, and the insert rod is threadedly connected to the threaded hole. The threaded connection between the insert rod and the first end node tie rod is gapless and detachable, avoiding the unadjustable nature of traditional locating pins that are driven in once, and allowing for control of connection tightness through thread engagement precision, adapting to the slight deformation of bamboo and wood materials caused by temperature and humidity changes; moreover, the threaded connection has stronger force transmission stability, which can transmit the load of the bamboo and wood beam to the bamboo and wood column through the rigid transmission path of insert rod-tie rod-nut, reducing energy loss during load transmission. At the same time, the threaded structure has excellent pull-out resistance, which can effectively resist the vertical displacement of the bamboo and wood beam, further improving the load-bearing capacity of the node.

[0008] Preferably, the end node tie rod includes a second end node tie rod, one end of which has two oppositely arranged pin holes, and the other end of which has an external thread; the connector includes two oppositely arranged insert plates, which are inserted into the pin holes. The two oppositely arranged insert plates form a surface contact fit with the pin holes, and the contact area is larger than that of the line contact of the positioning pin, which can disperse the stress around the pin holes and prevent the bamboo and wood materials from cracking due to excessive local stress, thus adapting to the low hardness of bamboo and wood materials; moreover, the plug-in installation of the insert plates is convenient and can be fixed without additional tools, and the arc-shaped structure of the insert plates and pin holes can accommodate small installation deviations, with a higher fault tolerance rate than threaded connections, making it suitable for rapid on-site assembly and improving construction efficiency.

[0009] Preferably, the intermediate node tie rod includes a first intermediate node tie rod, with each end of the first intermediate node tie rod having a threaded hole for connection with the insert rod; the intermediate node tie rod also includes a second intermediate node tie rod, with each end of the second intermediate node tie rod having two pin holes for connection with the insert plate. The two ends of the intermediate node tie rod are connected to the bamboo and wood beams on both sides, forming a continuous force transmission across the columns. This allows the load of the bamboo and wood beams on both sides to be directly transferred through the tie rod, eliminating the need for transfer through the bamboo and wood columns and reducing stress concentration on the bamboo and wood columns.

[0010] Preferably, the bamboo and wood beams have several layers of first connecting holes at both ends and several layers of second connecting holes on the sides of both ends. The axes of the second connecting holes are perpendicular to the axes of the first connecting holes, and the second connecting holes are connected to all the first connecting holes in the same layer. Connectors are installed in the second connecting holes, and the first connecting holes are used for installing end node tie rods / intermediate node tie rods. The top side of the bamboo and wood column has several third connecting holes. The layered arrangement of the first / second connecting holes allows for the orderly arrangement of multiple tie rods, forming a three-dimensional force transmission network, which increases the lateral displacement resistance by more than 50%, making it particularly suitable for resisting horizontal seismic loads.

[0011] A processing method, comprising: The drilling auxiliary positioning device is fastened to the end of the bamboo beam / bamboo column. The drilling auxiliary positioning device is provided with a first fixed positioning plate and a second fixed positioning plate. A first sliding positioning plate is provided on one side of the first fixed positioning plate, and a second sliding positioning plate is provided on one side of the second fixed positioning plate, so that the first fixed positioning plate is in contact with the end face of the bamboo beam / bamboo column, and the second fixed positioning plate is in contact with the side of the bamboo beam / bamboo column. When drilling the first connecting hole on the bamboo and wood beam, select the second positioning hole on the first sliding positioning plate, insert the electric drill into the selected second positioning hole and the corresponding first positioning hole on the first fixed positioning plate in sequence, and push the first sliding positioning plate while drilling until the drilling is completed along the depth direction of the hole.

[0012] The drilling auxiliary positioning device ensures that the axis of the first connecting hole is strictly parallel to the length of the bamboo and wood beam through the dual guidance of the fixed positioning plate and the sliding positioning plate, and the verticality error of the hole can be controlled, reducing the scrap rate of components. When drilling, the sliding positioning plate is pushed to move synchronously with the electric drill, which plays a supporting and guiding role, reducing the risk of cracking of bamboo and wood materials when drilling, and improving the quality and accuracy of hole processing.

[0013] Preferably, when drilling the second connecting hole on the bamboo or wood beam, the corresponding second positioning hole on the second sliding positioning plate is selected. The electric drill is then inserted sequentially into the selected second positioning hole and the corresponding first positioning hole on the second fixed positioning plate. While drilling, the second sliding positioning plate is pushed until drilling is completed along the depth direction of the hole. The setting of the second sliding positioning plate and the first sliding positioning plate ensures that the axis of the second connecting hole is strictly perpendicular to the first connecting hole, avoiding the inability of the connector to accurately align with the tie rod due to deviation in the perpendicularity of the hole, eliminating the need for on-site hole enlargement and adjustment, and further improving assembly efficiency. The perpendicularity accuracy of the second connecting hole and the first connecting hole directly affects the force transmission effect of the connector. Precise perpendicularity of the hole maximizes the contact area between the connector and the tie rod, reduces local stress concentration, and ensures that the load transmission direction is consistent with the design, avoiding additional bending moments and improving node stability.

[0014] Preferably, when drilling the third connecting hole on the bamboo or wood column, the corresponding second positioning hole on the second sliding positioning plate is selected. The electric drill is then inserted sequentially into the selected second positioning hole and the corresponding first positioning hole on the second fixed positioning plate. While drilling, the second sliding positioning plate is pushed until drilling is completed along the depth direction of the hole. This ensures that the axis of the third connecting hole is strictly aligned with the axis of the first connecting hole of the bamboo or wood beam, reducing the resistance when the tie rod passes through the column and achieving precise connection between the beam, column, and tie rod. The quality of the third connecting hole (perpendicularity, smoothness) directly affects the tightness of the fit between the tie rod and the bamboo or wood column. Precise machining can reduce the gap between the tie rod and the hole, avoid loosening and displacement during long-term use, and reduce wear on the inner wall of the hole, extending the service life of the joint.

[0015] A connection method, comprising: Insert an end node tie rod into the first connecting hole at the end of the bamboo and wood beam, and insert a connector into the second connecting hole so that the connector is connected to the end node tie rod. The end of the end node tie rod with external thread extends outward and passes through the third connecting hole of the bamboo or wooden column. The extended end of the end node tie rod is threadedly connected to the nut.

[0016] First, fix the beam end of the tie rod and connector, and then fix the column end of the tie rod and nut. There is no need to align the holes of the beam, column and tie rod at the same time, which reduces the construction difficulty and is suitable for large-scale on-site assembly. The threaded connection of the nut can control the tightness of the connection by tightening torque, and the tightening degree can be adjusted according to the actual load requirements.

[0017] Preferably, an intermediate node tie rod is inserted into the first connecting hole at the end of a bamboo or wood beam, and a connector is inserted into the second connecting hole, so that the connector is connected to the intermediate node tie rod. One end of the intermediate node tie rod extends outward from the first connecting hole and passes through the third connecting hole of the bamboo and wood column. The end of the intermediate node tie rod passes through the bamboo and wood column and is inserted into the first connecting hole at the end of another bamboo and wood beam, and is connected to the connector. Insert a grouting steel plate into the gap between the bamboo beam and the bamboo column, and then fill it with inorganic adhesive to seal the gap.

[0018] The process of connecting the intermediate node tie rod to one side beam first, then through the column, and finally to the other side beam allows for gradual adjustment of the relative positions of the beam and column, reducing operational difficulty. Simultaneously, the double fixing of the connectors on both sides ensures no axial displacement of the intermediate node tie rod, improving the overall integrity of the node. The combined sealing design of the joint-filling steel plate and inorganic adhesive serves two purposes: firstly, the steel plate fills the gap between the beam and column, preventing swaying of the bamboo and wood beams due to gaps; secondly, the inorganic adhesive has good compatibility with bamboo and wood materials and tie rods, forming an integrated structure of component-tie rod-adhesive layer, improving the node's sealing performance and corrosion resistance. Furthermore, the adhesive effect of the inorganic adhesive further enhances the load-bearing capacity of the node, reducing stress loss during load transfer.

[0019] As can be seen from the above technical solutions, the advantages of the present invention are: 1. The connection is achieved through multiple end and intermediate node tie rods, which is suitable for end connections of "single column to single beam" and can also efficiently solve the intermediate connection scenario of "single column to double beam". It eliminates the need for multiple independent connecting pins, reduces assembly steps, and significantly reduces operational complexity. Moreover, the combination connection method of tie rods and connectors forms a multi-tie rod collaborative force transmission system for beam-column nodes. Compared with the force transmission path of a single connecting pin, the force flow can be evenly transmitted to the bamboo and wood column through multiple tie rods, avoiding local stress concentration. At the same time, the tie rods run through the bamboo and wood beams and bamboo and wood columns, improving the overall integrity of the node and enhancing the connection strength. The end node tie rods are fixed by nuts and threads, and the intermediate node tie rods are double fixed by connectors at both ends, which can eliminate the fit gaps, effectively prevent loosening and displacement, and form a continuous and uniform force transmission path. Especially under horizontal seismic loads or vertical eccentric loads, the stability of the node is significantly enhanced.

[0020] 2. A drilling auxiliary positioning device is used to assist in drilling operations on bamboo and wood beams and columns. The dual guidance of the fixed positioning plate and the sliding positioning plate ensures that the axis of the first connecting hole is strictly parallel to the length direction of the bamboo and wood beam, and the verticality error of the hole is controllable, reducing the scrap rate of components. When drilling, the sliding positioning plate moves synchronously with the electric drill, which plays a supporting and guiding role, reducing the risk of cracking of bamboo and wood materials when drilling, and improving the quality and accuracy of hole processing. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the bamboo and wood beam structure according to one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the structure of a bamboo and wood pillar according to one or more embodiments of the present invention; Figure 3 This is a schematic diagram of the structure of the first end node tie rod according to one or more embodiments of the present invention; Figure 4 This is a schematic diagram of the insertion rod according to one or more embodiments of the present invention; Figure 5 This is a schematic diagram of the connection between the first end node tie rod and the insertion rod according to one or more embodiments of the present invention; Figure 6 This is a schematic diagram of the structure of the first intermediate node tie rod according to one or more embodiments of the present invention; Figure 7 This is a schematic diagram of the connection between the first intermediate node tie rod and the insertion rod according to one or more embodiments of the present invention; Figure 8 This is a schematic diagram of the structure of the second end node tie rod according to one or more embodiments of the present invention; Figure 9 This is a schematic diagram of the insert plate according to one or more embodiments of the present invention; Figure 10 This is a schematic diagram of the connection between the second end node tie rod and the insert plate according to one or more embodiments of the present invention; Figure 11 This is a schematic diagram of the structure of the second intermediate node tie rod according to one or more embodiments of the present invention; Figure 12 This is a schematic diagram of the connection between the second intermediate node tie rod and the insert plate according to one or more embodiments of the present invention; Figure 13 This is a structural schematic diagram of a beam-column joint according to one or more embodiments of the present invention; Figure 14 This is a three-dimensional structural schematic diagram of the drilling auxiliary positioning device according to one or more embodiments of the present invention; Figure 15 This is a schematic front view of the drilling auxiliary positioning device according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. Bamboo and wood beam; 2. First connecting hole; 3. Second connecting hole; 4. Bamboo and wood column; 5. Third connecting hole; 6. First end node tie rod; 7. Threaded hole; 8. External thread; 9. Insert rod; 10. Nut; 11. First intermediate node tie rod; 12. Second end node tie rod; 13. Pin hole; 14. Insert plate; 15. Second intermediate node tie rod; 16. Sealing steel plate; 17. First sliding positioning plate; 18. First fixed positioning plate; 19. Second sliding positioning plate; 20. Second fixed positioning plate; 21. Slide rail; 22. Spring; 23. Guide positioning rod; 24. Limiting head; 25. First positioning hole; 26. Second positioning hole. Detailed Implementation

[0023] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] Example 1 In a typical embodiment of the present invention, such as Figures 1-13 As shown, an inorganic adhesive composite bamboo-wood beam-column joint is proposed, comprising: bamboo-wood beam 1, bamboo-wood column 4, end node tie rods, intermediate node tie rods, and connectors. Both bamboo-wood beam 1 and bamboo-wood column 4 include several components, such as... Figure 1 As shown, several first connecting holes 2 are provided at both ends of the bamboo beam 1. The first connecting holes 2 extend along the length of the bamboo beam 1 and are arranged in a quadrilateral pattern. In this embodiment, the first connecting holes 2 are provided in two layers, with two first connecting holes 2 spaced apart in each layer. Each first connecting hole 2 is fitted with an end node tie rod / middle node tie rod. Several second connecting holes 3 are provided on the sides of both ends of the bamboo beam 1. The second connecting holes 3 extend along the width of the bamboo beam 1, and the axis of the second connecting holes 3 is perpendicular to the axis of the first connecting holes 2. The number of layers of second connecting holes 3 is the same as the number of layers of first connecting holes 2 at adjacent ends, and each layer corresponds to the first connecting hole 2. Each layer has one second connecting hole 3, and the second connecting hole 3 is connected to all the first connecting holes 2 in the same layer. Each second connecting hole 3 is fitted with a connector. Figure 2 As shown, several third connecting holes 5 are provided on the side of the bamboo and wood column 4 near the top. The number and position of the third connecting holes 5 are the same as those of the first connecting holes 2 and correspond one-to-one. The third connecting holes 5 penetrate the bamboo and wood column 4 laterally and are used for the installation of end node tie rods / intermediate node tie rods.

[0025] like Figure 13As shown, a single bamboo beam 1 and a single bamboo column 4 are connected by four end node tie rods. One end of the end node tie rod is inserted into the corresponding first connecting hole 2 and connected to the connector in the corresponding second connecting hole 3. The other end of the end node tie rod passes through the corresponding third connecting hole 5 and is threaded with a nut 10. A single bamboo column 4 and the bamboo beams 1 arranged opposite on both sides are connected by four intermediate node tie rods. The two ends of the intermediate node tie rods pass laterally through the third connecting hole 5 and are respectively inserted into the first connecting hole 2 of the two corresponding bamboo beams 1 and connected to the connector in the second connecting hole 3 of the corresponding bamboo beams 1, so as to achieve a fixed connection between the bamboo beams 1 and the bamboo column 4.

[0026] In this embodiment, the end node tie rods are of two types: a first end node tie rod 6 and a second end node tie rod 12, as detailed below. Figure 3 As shown, a threaded hole 7 is provided on one side of the first end node tie rod 6. The axis of the threaded hole 7 is perpendicular to the axis of the first end node tie rod 6. The other end of the first end node tie rod 6 is provided with an external thread 8. The end with the threaded hole 7 is used to be inserted into the first connecting hole 2 for threaded connection with the connector in the second connecting hole 3. The end with the external thread 8 is used to pass through the third connecting hole 5 and be threadedly connected with the nut 10 to achieve a quick fixed connection between the single bamboo beam 1 and the single bamboo column 4. The tightness and firmness of the fit between the bamboo beam 1 and the bamboo column 4 can be adjusted by tightening the nut 10.

[0027] like Figure 4 and Figure 5 As shown, the connector is a plug rod 9. One end of the plug rod 9 is a threaded end with an external thread 8. The plug rod 9 is inserted into the corresponding second connecting hole 3, and the threaded end of the plug rod 9 is connected to the threaded hole 7 of the first end node tie rod 6 by a threaded connection to restrict the axial movement of the first end node tie rod 6. With the nut 10 at the other end of the first end node tie rod 6, a quick fixed connection between the bamboo beam 1 and the bamboo column 4 is achieved.

[0028] like Figure 8 As shown, two pin holes 13 are provided on one side of the second end node tie rod 12. The axes of the two pin holes 13 are perpendicular to the axis of the second end node tie rod 12. The cross-section of the pin holes 13 is arc-shaped. The two pin holes 13 are arranged opposite to each other. The other end of the second end node tie rod 12 is provided with an external thread 8. The end with the pin hole 13 is used to be inserted into the first connecting hole 2 for connection with the connector in the second connecting hole 3. The end with the external thread 8 is used to pass through the third connecting hole 5 and be threaded to the nut 10 to achieve a quick fixed connection between the single bamboo beam 1 and the single bamboo column 4. The tightness and firmness of the fit between the bamboo beam 1 and the bamboo column 4 can be adjusted by tightening the nut 10.

[0029] like Figure 9 and Figure 10 As shown, the connector consists of two oppositely arranged insert plates 14 with an arc-shaped cross section. The two oppositely arranged insert plates 14 are used to insert into the second connecting hole 3 and into the corresponding pin hole 13 to restrict the axial movement of the second end node tie rod 12. Together with the nut 10 at the other end of the second end node tie rod 12, a quick fixed connection between the bamboo beam 1 and the bamboo column 4 is achieved.

[0030] There are two types of intermediate node tie rods: the first intermediate node tie rod 11 and the second intermediate node tie rod 15, as detailed below. Figure 6 and Figure 7 As shown, a threaded hole 7 is provided on each of the two ends of the first intermediate node tie rod 11. The axis of the threaded hole 7 is perpendicular to the axis of the first intermediate node tie rod 11. The first intermediate node tie rod 11 passes through the third connecting hole 5 on the bamboo and wood column 4. The two ends of the first intermediate node tie rod 11 are respectively used to be inserted into the first connecting hole 2 of different bamboo and wood beams 1. The threaded hole 7 is used to connect with the insertion rod 9 to realize the quick fixed connection between the bamboo and wood column 4 and multiple bamboo and wood beams 1.

[0031] like Figure 11 and Figure 12 As shown, two pin holes 13 are respectively opened on the two sides of the second intermediate node tie rod 15. The axis of the two pin holes 13 is perpendicular to the axis of the second intermediate node tie rod 15. The cross section of the pin hole 13 is arc-shaped. The two pin holes 13 at the same end are arranged opposite to each other. The second intermediate node tie rod 15 passes through the third connecting hole 5 on the bamboo and wood column 4. The two ends of the second intermediate node tie rod 15 are respectively used to be inserted into the first connecting hole 2 of different bamboo and wood beams 1. The pin holes 13 are used to quickly connect with the insert plate 14 to realize the quick fixed connection between the bamboo and wood column 4 and multiple bamboo and wood beams 1.

[0032] like Figure 13 As shown, in order to further improve the connection strength and tightness between the beams and columns, a joint-filling steel plate 16 is also provided between the bamboo and wood beam 1 and the bamboo and wood column 4. The joint-filling steel plate 16 is a wedge-shaped steel plate. At the same time, inorganic adhesive is used to seal the joint between the joint-filling steel plate 16 and the bamboo and wood beam 1 and the bamboo and wood column 4.

[0033] Example 2 In another typical embodiment of the present invention, a processing method for inorganic adhesive composite bamboo and wood beam-column joints is proposed, which is used to process the first connecting hole 2, the second connecting hole 3 and the third connecting hole 5 on the bamboo and wood beam 1 and the bamboo and wood column 4. The processing method adopts a special drilling-assisted positioning device.

[0034] like Figure 14 and Figure 15As shown, the drilling auxiliary positioning device includes: a first sliding positioning plate 17, a first fixed positioning plate 18, a second sliding positioning plate 19, a second fixed positioning plate 20, and a guide positioning rod 23. There is one first fixed positioning plate 18 and two second fixed positioning plates 20. The two second fixed positioning plates 20 are slidably disposed on the first fixed positioning plate 18. The first fixed positioning plate 18 and the two second fixed positioning plates 20 combine to form a U-shaped structure for clamping onto the ends of the bamboo beam 1 and the bamboo column 4. The first fixed positioning plate 18 is used to fit against the end face of the bamboo beam 1 and the bamboo column 4. The fixed positioning plate 20 is used to fit against the sides of the bamboo beam 1 and the bamboo column 4; a number of guide positioning rods 23 are fixedly provided on the first fixed positioning plate 18 and the second fixed positioning plate 20 respectively; a first sliding positioning plate 17 is movably provided on the side of the first fixed positioning plate 18 away from the second fixed positioning plate 20, and the first sliding positioning plate 17 is slidably connected to the guide positioning rods 23 on the first fixed positioning plate 18; a second sliding positioning plate 19 is movably provided on the outer side of each second fixed positioning plate 20, and the second sliding positioning plate 19 is slidably connected to the guide positioning rods 23 on the corresponding second fixed positioning plate 20.

[0035] Both the first fixed positioning plate 18 and the second fixed positioning plate 20 are provided with a number of first positioning holes 25, which are evenly distributed on the positioning plates. Both the first sliding positioning plate 17 and the second sliding positioning plate 19 are provided with a number of second positioning holes 26. The number of second positioning holes 26 on the sliding positioning plate is the same as the number of first positioning holes 25 on the corresponding fixed positioning plate and they correspond one-to-one, so as to ensure the stability and drilling accuracy during the drilling movement.

[0036] like Figure 15 As shown, a slide rail 21 is fixedly provided on the first fixed positioning plate 18 for sliding connection with the second fixed positioning plate 20. A slider that is slidably connected to the slide rail 21 is fixedly provided on the second fixed positioning plate 20. A fixing pin is also provided on the slide rail 21 to fix and limit the position of the second fixed positioning plate 20 after the position is adjusted.

[0037] Each guide positioning rod 23 is fitted with a corresponding spring 22, which is located between the sliding positioning plate and the fixed positioning plate for automatic reset of the sliding positioning plate; a limit head 24 is fixedly provided at the end of the guide positioning rod 23 to prevent the sliding positioning plate from falling out.

[0038] The specific process of the processing method is as follows: The drilling auxiliary positioning device is fastened to the end of the bamboo beam 1 / bamboo column 4, so that the first fixed positioning plate 18 is in contact with the end face of the bamboo beam 1 / bamboo column 4. The positions of the two second fixed positioning plates 20 are adjusted and fixed, so that the second fixed positioning plates 20 are in contact with the side of the bamboo beam 1 / bamboo column 4. When drilling the first connecting hole 2 on the bamboo beam 1, select the second positioning hole 26 at the corresponding position on the first sliding positioning plate 17, and insert the electric drill into the selected second positioning hole 26 on the first sliding positioning plate 17 and the corresponding first positioning hole 25 on the first fixed positioning plate 18 in sequence. While drilling, push the first sliding positioning plate 17 until the drilling is completed along the depth direction of the hole. Pull out the electric drill, and the first sliding positioning plate 17 will automatically reset. When drilling the second connecting hole 3 on the bamboo beam 1, select the second positioning hole 26 at the corresponding position on the second sliding positioning plate 19, and insert the electric drill into the second positioning hole 26 on the selected second sliding positioning plate 19 and the first positioning hole 25 on the corresponding second fixed positioning plate 20 in sequence. While drilling, push the second sliding positioning plate 19 until the drilling is completed along the depth direction of the hole. Pull out the electric drill, and the second sliding positioning plate 19 will automatically reset. When drilling the third connecting hole 5 on the bamboo and wood pillar 4, select the second positioning hole 26 at the corresponding position on the second sliding positioning plate 19, and insert the electric drill into the second positioning hole 26 on the selected second sliding positioning plate 19 and the first positioning hole 25 on the corresponding second fixed positioning plate 20 in sequence. While drilling, push the second sliding positioning plate 19 until the drilling is completed along the depth direction of the hole. Pull out the electric drill, and the second sliding positioning plate 19 will automatically reset.

[0039] Guided by the sliding positioning plate and the guide positioning rod 23, the drill bit can move between the fixed positioning plate and the sliding positioning plate, making the hole straighter, improving the positioning accuracy of the hole, and ensuring the smooth connection of the column and beam.

[0040] Example 3 In another typical embodiment of the present invention, a method for connecting beam-column joints of inorganic adhesive composite bamboo and wood structures is proposed, including: connecting end joints and connecting intermediate joints.

[0041] The connection process of the end nodes is as follows: Insert the first end node tie rod 6 / second end node tie rod 12 into the first connecting hole 2 at the end of the bamboo beam 1, and insert the corresponding insert rod 9 or insert plate 14 into the second connecting hole 3. When the first end node tie rod 6 and the insert rod 9 are used, the threaded end of the insert rod 9 is threadedly connected to the threaded hole 7 on the first end node tie rod 6. When the second end node tie rod 12 and the insert plate 14 are used, the insert plate 14 is inserted into the pin hole 13 on the second end node tie rod 12. The first end node tie rod 6 / second end node tie rod 12 in the first connecting hole 2 has one end with external thread 8 extending outward, so that the extended end of the first end node tie rod 6 / second end node tie rod 12 passes through the third connecting hole 5 of the bamboo and wood column 4; The extended ends of the first end node tie rod 6 and the second end node tie rod 12 are connected to the nut 10 by threaded connection. The fixed connection between the bamboo beam 1 and the bamboo column 4 is achieved by tightening the nut 10.

[0042] The connection process of intermediate nodes is as follows: A first intermediate node tie rod 11 / second intermediate node tie rod 15 is inserted into the first connecting hole 2 at the end of a bamboo beam 1, and a corresponding insert rod 9 or insert plate 14 is inserted into the second connecting hole 3. When the first intermediate node tie rod 11 and the insert rod 9 are used, the threaded end of the insert rod 9 is threadedly connected to the threaded hole 7 at one end of the first intermediate node tie rod 11. When the second intermediate node tie rod 15 and the insert plate 14 are used, the insert plate 14 is inserted into the pin hole 13 at one end of the second intermediate node tie rod 15. The other end of the first intermediate node tie rod 11 / second intermediate node tie rod 15 inside the first connecting hole 2 extends outward from the first connecting hole 2, so that the extended end of the first intermediate node tie rod 11 / second intermediate node tie rod 15 passes through the third connecting hole 5 of the bamboo and wood column 4. The first intermediate node tie rod 11 and the second intermediate node tie rod 15 pass through one end of the bamboo and wood column 4 and are inserted into the first connecting hole 2 at the end of the other bamboo and wood beam 1, and are connected with the corresponding insert rod 9 or insert plate 14 to achieve a fixed connection between the two bamboo and wood beams 1 and the bamboo and wood column 4. Insert a grouting steel plate 16 into the gap between the bamboo beam 1 and the bamboo column 4, and fill it with inorganic adhesive to seal the gap.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inorganic adhesive composite bamboo-wood structural beam-column joint, comprising: A number of bamboo and wood beams (1) and bamboo and wood columns (4) are characterized in that a single bamboo and wood beam (1) and a single bamboo and wood column (4) are connected by a number of end node tie rods. One end of the end node tie rod is inserted into the end face of the bamboo and wood beam (1) and connected to the connector. The connector passes through one side of the bamboo and wood beam (1), and the other end of the end node tie rod passes through the bamboo and wood column (4) and is threaded with a nut (10). A single bamboo column (4) is connected to the bamboo beams (1) on both sides by several intermediate node tie rods. The two ends of the intermediate node tie rods pass horizontally through the bamboo column (4) and are inserted into the end faces of the corresponding two bamboo beams (1). The two ends of the intermediate node tie rods are connected to the connectors on the side that pass through the bamboo beams (1).

2. The inorganic adhesive composite bamboo-wood structure beam-column joint according to claim 1, characterized in that, The end node tie rod includes a first end node tie rod (6), one end of which is provided with a threaded hole (7), and the other end of the first end node tie rod (6) is provided with an external thread (8); the connector includes a plug rod (9), one end of which is provided with an external thread (8), and the plug rod (9) is threadedly connected to the threaded hole (7).

3. The inorganic adhesive composite bamboo-wood structure beam-column joint according to claim 2, characterized in that, The end node tie rod includes a second end node tie rod (12), one end of which has two oppositely arranged pin holes (13), and the other end of the second end node tie rod (12) has an external thread (8); the connector includes two oppositely arranged insert plates (14), which are inserted into the pin holes (13).

4. The inorganic adhesive composite bamboo-wood structure beam-column joint according to claim 3, characterized in that, The intermediate node tie rod includes a first intermediate node tie rod (11) and a second intermediate node tie rod (15). The first intermediate node tie rod (11) has a threaded hole (7) at each end for connecting with the insert rod (9); the second intermediate node tie rod (15) has two pin holes (13) at each end for connecting with the insert plate (14).

5. The inorganic adhesive composite bamboo-wood structure beam-column joint according to claim 1, characterized in that, Several layers of first connecting holes (2) are provided at both ends of the bamboo and wood beam (1). Several layers of second connecting holes (3) are provided on the sides of both ends of the bamboo and wood beam (1). The axis of the second connecting hole (3) is perpendicular to the axis of the first connecting hole (2). The second connecting hole (3) is connected to all the first connecting holes (2) in the same layer. The connector is installed in the second connecting hole (3). The first connecting hole (2) is used for the installation of end node tie rods / middle node tie rods. Several third connecting holes (5) are provided on the top side of the bamboo and wood column (4).

6. A processing method, characterized in that, For processing inorganic adhesive composite bamboo and wood structure beam-column joints as described in any one of claims 1-5, comprising: The drilling auxiliary positioning device is fastened to the end of the bamboo beam (1) / bamboo column (4). The drilling auxiliary positioning device is provided with a first fixed positioning plate (18) and a second fixed positioning plate (20). A first sliding positioning plate (17) is provided on one side of the first fixed positioning plate (18), and a second sliding positioning plate (19) is provided on one side of the second fixed positioning plate (20). This makes the first fixed positioning plate (18) fit with the end face of the bamboo beam (1) / bamboo column (4), and the second fixed positioning plate (20) fit with the side of the bamboo beam (1) / bamboo column (4). When drilling the first connecting hole (2) on the bamboo beam (1), select the second positioning hole (26) on the first sliding positioning plate (17), insert the electric drill into the selected second positioning hole (26) and the corresponding first positioning hole (25) on the first fixed positioning plate (18) in sequence, and push the first sliding positioning plate (17) while drilling until drilling is completed along the depth direction of the hole.

7. The processing method according to claim 6, characterized in that, When drilling the second connecting hole (3) on the bamboo beam (1), select the second positioning hole (26) at the corresponding position on the second sliding positioning plate (19), insert the electric drill into the selected second positioning hole (26) and the first positioning hole (25) on the corresponding second fixed positioning plate (20) in sequence, and push the second sliding positioning plate (19) while drilling until drilling is completed along the depth direction of the hole.

8. The processing method according to claim 6, characterized in that, When drilling the third connecting hole (5) on the bamboo and wood column (4), select the second positioning hole (26) at the corresponding position on the second sliding positioning plate (19), and insert the electric drill into the selected second positioning hole (26) and the first positioning hole (25) on the corresponding second fixed positioning plate (20) in sequence. While drilling, push the second sliding positioning plate (19) until drilling is completed along the depth direction of the hole.

9. A connection method, characterized in that, For the connection of the inorganic adhesive composite bamboo and wood structure beam-column joint as described in any one of claims 1-5, comprising: Insert an end node tie rod into the first connecting hole (2) at the end of the bamboo beam (1), and insert a connector into the second connecting hole (3) so that the connector is connected to the end node tie rod; The end of the end node tie rod with external thread (8) extends outward and passes through the third connecting hole (5) of the bamboo and wood column (4), and the extended end of the end node tie rod is threadedly connected to the nut (10).

10. The connection method according to claim 9, characterized in that, Insert an intermediate node tie rod into the first connecting hole (2) at the end of a bamboo beam (1), and insert a connector into the second connecting hole (3) so that the connector is connected to the intermediate node tie rod; One end of the intermediate node tie rod extends outward through the first connecting hole (2) and passes through the third connecting hole (5) of the bamboo and wood column (4). The end of the intermediate node tie rod passes through the bamboo and wood column (4) and is inserted into the first connecting hole (2) at the end of another bamboo and wood beam (1) and connected to the connector. Insert a grouting steel plate (16) into the gap between the bamboo beam (1) and the bamboo column (4), and fill it with inorganic glue to seal the gap.

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