Wood structure connecting joint and construction method thereof

Abstract

The invention relates to the technical field of building structure design, in particular to a wood structure connecting joint and a construction method thereof.The wood structure connecting joint comprises two wood components which are spliced in an aligned mode, and a plurality of steel bar planting holes are formed in the splicing ends of the two wood components; the embedded steel bar holes in the two wood components are in one-to-one correspondence and are connected through embedded steel bars, and embedded steel bar gaps between the embedded steel bar holes and the embedded steel bars are filled with embedded steel bar glue. And the temporary tensioning device is detachably installed on the two wood components, and the temporary tensioning device is used for temporarily tensioning the two wood components before glue injection so that the splicing faces of the two wood components can be attached and pressed. Splicing of large-section wood components can be achieved, connecting joints are high in rigidity, joint areas are not weakened, no steel plates, bolts and the like are exposed on the sections of the components, and the building appearance with the full-wood effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building structure design, and in particular to a wood structure connection node and a construction method thereof. Background Art

[0002] Most of the large-span spatial structure engineering cases are steel structures or aluminum alloy structures, while glued timber structures are rarely used. This is mainly because the material of glued timber structures is uneven, the cross-grain stress is weak, and it is difficult to achieve rigid connection between wooden arches / beams, making many structural systems unsuitable.

[0003] Glued wood structure has many advantages, such as light weight, green and environmental protection, convenient construction and installation, and can realize assembly construction. It is very suitable for some buildings with special functions or buildings that require wooden structure effects. Glued wood structural materials are renewable resources and are also in line with the general direction of green environmental protection and assembly installation. Therefore, it is necessary to develop a large-span glued wood building structure system.

[0004] However, as the span increases, the cross-section of the glued timber structure increases and needs to be processed in sections before being spliced. As the cross-section of the glued timber components increases, the difficulty of connection increases. The conventional method of connecting nodes is to groove the connection between the two wooden components and use steel plates and tension bolts to achieve the connection. This connection method has weak initial stiffness and significantly weakens the cross-section of the wooden components, making the node stiffness and bearing capacity far less than the full cross-section. In addition, the exposure of the steel plates and bolts results in a poor building appearance. Summary of the invention

[0005] The object of the present invention is to provide a wood structure connection node and a construction method thereof, so as to solve the problems of insufficient rigidity of the connection nodes of the large-span glued wood structure and poor building appearance.

[0006] In order to achieve the above object, an embodiment of the present invention provides a wood structure connection node, comprising:

[0007] Aligning the two wood components to be spliced, a plurality of rebar holes are opened at the splicing ends of the two wood components, the rebar holes on the two wood components correspond to each other and are connected by implanting steel bars, and the gaps between the rebar holes and the implanted steel bars are filled with rebar glue;

[0008] A temporary tensioning device is detachably mounted on the two wooden components, and is used to temporarily tension the two wooden components before glue injection so that the joint surfaces of the two wooden components are attached and pressed.

[0009] Optionally, the joint surfaces of the two wooden components are the same, and the joint surfaces are perpendicular to the axes of the wooden components.

[0010] Optionally, the implanted steel bars include at least a first implanted steel bar and a second implanted steel bar, the first implanted steel bar is closer to the center of the wooden component than the second implanted steel bar, and the length of the first implanted steel bar is shorter than the length of the second implanted steel bar.

[0011] Optionally, center support frames are respectively provided at both ends of the implanted steel bars inserted into the implanting holes.

[0012] Optionally, the central support frame includes three support blocks, and the three support blocks are evenly distributed along the circumference of the implanted steel bars.

[0013] Optionally, each of the wooden components is provided with a glue injection hole connected to the rebar embedding hole at the bottom of the hole, and each of the wooden components is provided with an exhaust observation hole connected to the rebar embedding hole at an opening close to the rebar embedding hole.

[0014] Optionally, the diameters of the glue injection hole and the exhaust observation hole are both smaller than the diameter of the rebar embedding hole, and the glue injection hole and the exhaust observation hole are respectively flush with the top end of the rebar embedding hole.

[0015] Optionally, the temporary tensioning device comprises a tensioning assembly and two fixing assemblies, and the two fixing assemblies are detachably mounted on the two wooden components respectively;

[0016] The fixing assembly includes two fixing covers, a plurality of fixing screws and a plurality of fixing nuts. The two fixing covers are respectively located at opposite sides of the wooden component. The wooden component is provided with fixing holes for the fixing screws to pass through. After the fixing screws pass through the fixing holes, both ends of the fixing screws are respectively connected to the two fixing covers through the fixing nuts.

[0017] The tensioning assembly includes two tensioning screws and four tensioning nuts. The two tensioning screws are respectively located on opposite sides of the wooden component and are used to connect the fixing covers on the two wooden components on the corresponding sides. The two ends of the tensioning screws respectively penetrate the two fixing covers and are connected to the tensioning nuts.

[0018] Based on the same technical concept, the present invention also provides a construction method for the above-mentioned wood structure connection node, comprising the following steps:

[0019] A number of holes for embedding steel bars are correspondingly opened at the joint ends of the two wooden components and connected by embedding steel bars;

[0020] Install a temporary tensioning device, and use the temporary tensioning device to tension the two wooden components so that the joint surfaces of the two wooden components are pressed tightly together;

[0021] Injecting glue into all the rebar embedding holes one by one, so that all the rebar embedding holes and the rebar embedding gaps where the steel bars are implanted are filled with rebar embedding glue;

[0022] After all the glue injection is completed, the temporary tensioning device is removed after the solidification time of the reinforcement glue is over.

[0023] Optionally, each of the wooden components is provided with a glue injection hole connected to the rebar planting hole at the bottom of the rebar planting hole, and each of the wooden components is provided with an exhaust observation hole connected to the rebar planting hole at an opening close to the rebar planting hole; the step of injecting glue into the rebar planting hole specifically includes:

[0024] Simultaneously injecting the reinforcing steel bar embedding glue from the glue injection holes located at both ends of the embedded reinforcing steel bar;

[0025] When the reinforcing bar glue overflows to the exhaust observation holes on the two wooden components, the glue injection hole at one end is stopped, and the glue injection hole at the other end continues to be injected;

[0026] When it is found that the exhaust observation hole on the side where the glue injection is continued overflows the rebar embedding glue, it is immediately blocked, and the glue injection is continued until the rebar embedding glue overflows from the other exhaust observation hole, and the injection amount and theoretical gap volume are verified to ensure that the rebar embedding gap is completely filled and the other exhaust observation hole is blocked.

[0027] In the wood structure connection node and the construction method thereof provided in one embodiment of the present invention, at least one of the following beneficial effects is achieved:

[0028] 1) It can realize the splicing of large-section wood components, the connection nodes have high rigidity, there is no weakening of the node area, and there is no exposed steel plate, bolts, etc. on the cross section of the component, achieving a full-wood effect of the building appearance, which is conducive to promoting the development of large-span glued wood structure buildings;

[0029] 2) The lengths of the implanted steel bars are designed differently. On the one hand, it is considered that when the wood member is subjected to bending moment, the stress of the cross section is greater near the upper and lower edges. On the other hand, it is considered that the holes for injecting glue are opened to avoid that all the injection holes for implanting steel bars are in the same cross section, thereby ensuring the rigidity and strength of the wood member.

[0030] 3) Centering support frames are respectively provided at both ends of the implanted steel bar inserted into the implanting hole, so that the implanted steel bar can be arranged in the center after being inserted into the implanting hole, ensuring that the implanting glue can completely wrap the implanted steel bar to form a complete and continuous bonding layer, avoiding stress concentration and affecting the bearing capacity:

[0031] 4) By designing the temporary tensioning device, the two wooden components can be temporarily tensioned before the glue is injected, and an initial pre-tensioning force is applied to the two wooden components to ensure that the two wooden components are pressed against each other, prevent the reinforcing bar glue from leaking to the joint surface, and improve the stiffness of the connection node;

[0032] 5) Compared with the existing method of injecting glue first and then placing the rebar, there are problems such as colloid overflow when multiple rebars are inserted into the rebar holes at the same time, difficulty in operation, incomplete injection of glue, and quality assurance. Since the present invention starts injecting glue from the bottom of the rebar hole, it can ensure that the rebar hole and the rebar gap between the implanted steel bars are filled with rebar glue, ensure that the implanted steel bars are in full contact with the rebar glue, and can inject glue in batches, which is easy to operate;

[0033] 6) By designing the glue injection hole and the exhaust observation hole to be flush with the top of the rebar embedding hole, it can be further ensured that the rebar embedding hole and the rebar embedding gap between the implanted steel bars are filled with rebar embedding glue, thereby improving the rebar embedding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Those skilled in the art should understand that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0035] Figure 1 A top view of a wood structure connection node after glue injection provided by an embodiment of the present invention;

[0036] Figure 2 A front view of a wood structure connection node after glue injection provided by an embodiment of the present invention;

[0037] Figure 3 for Figure 2 Cross-sectional view along AA direction;

[0038] Figure 4 It is a three-dimensional axonometric diagram of a wood structure connection node before glue injection provided by an embodiment of the present invention;

[0039] Figure 5 is a top view of a wood structure connection node before glue injection provided by an embodiment of the present invention;

[0040] Figure 6 is a three-dimensional schematic diagram of a temporary tensioning device provided by an embodiment of the present invention;

[0041] Figure 7 It is a three-dimensional schematic diagram of implanting steel bars into a wooden component provided by an embodiment of the present invention;

[0042] Figure 8 It is a cross-sectional view of an implanted steel bar at a central support frame provided by an embodiment of the present invention.

[0043] In the attached figure:

[0044] 100-wood component; 110-rebar embedding hole; 120-joining surface; 130-glue injection hole; 140-exhaust observation hole; 150-fixing hole; 200-implanted steel bars; 300-temporary tensioning device; 310-fixing cover; 320-fixing screw; 330-fixing nut; 340-tensioning screw; 350-tensioning nut; 400-center support frame; 410-support block. DETAILED DESCRIPTION

[0045] In order to make the purpose, advantages and features of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Any modification of the structure, change in the proportional relationship or adjustment of the size, under the same or similar conditions as the effects that can be produced by the present invention and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0046] As used in the present invention, the singular forms "one", "an", and "the" include plural objects, unless the content clearly indicates otherwise. As used in the present invention, the term "or" is generally used in a sense that includes "and / or", unless the content clearly indicates otherwise. As used in the present invention, the term "several" is generally used in a sense that includes "at least one", unless the content clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in a sense that includes "two or more", unless the content clearly indicates otherwise. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", and "third" may explicitly or implicitly include one or at least two of the features.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Please refer to Figure 1-Figure 5 , this embodiment provides a wood structure connection node, including:

[0049] Align the two wood components 100 to be spliced, a plurality of rebar holes 110 are opened at the splicing ends of the two wood components 100, the rebar holes 110 on the two wood components 100 correspond to each other and are connected by implanting steel bars 200, and the gaps between the rebar holes 110 and the implanted steel bars 200 are filled with rebar glue;

[0050] The temporary tensioning device 300 is detachably mounted on the two wood components 100 . The temporary tensioning device 300 is used to temporarily tension the two wood components 100 before glue injection so that the joint surfaces 120 of the two wood components 100 are attached and pressed.

[0051] In recent years, the application of large-span glued wood structures and steel-wood structures has become more and more common. As the span increases, the cross-section of glued wood components becomes larger and larger. Due to processing and transportation issues, large-span glued wood beams / arches need to be segmented and then spliced ​​and connected. As the cross-section of glued wood components increases, the connection difficulty increases. The initial stiffness of conventional steel plug-in plate bolt connection is weak and cannot achieve rigid connection, which often affects the establishment of large-span structural systems or the structural stiffness cannot meet the requirements. In addition, the slotting of steel plug-in plate bolts significantly weakens the cross-section of glued wood components, resulting in poor building appearance. Based on this, the present invention provides a wood structure connection node that can realize the splicing of large-section wood components 100. The connection node has high stiffness and no weakening of the node area. The cross-section of the wood component 100 has no exposed steel plates, bolts, etc., achieving a full-wood effect of the building appearance, which is conducive to promoting the development of large-span glued wood structure buildings.

[0052] Specifically, in a large-span glued timber arch structure, the timber arch needs to be processed in sections and then connected. The present invention connects the two end timber components 100 by butting them together, adopts a rebar embedding connection method, and drills holes on the joint surfaces 120 of the connected timber components 100 to embed rebars.

[0053] Preferably, the implanted steel bar 200 includes at least a first implanted steel bar and a second implanted steel bar, the first implanted steel bar is closer to the center of the wood component 100 than the second implanted steel bar, and the length of the first implanted steel bar is less than the length of the second implanted steel bar. The advantages of such a design are: on the one hand, considering that the cross-sectional stress is greater when the wood component 100 is subjected to bending moment, the closer to the upper and lower edges, the greater the stress; on the other hand, considering the opening of the injection holes, it is avoided that the injection holes of all the implanted steel bars are in the same cross section, thereby ensuring the rigidity and strength of the wood component 100.

[0054] In this embodiment, the length of the implanted steel bar 200 is divided into three types, which are the first implanted steel bar, the second implanted steel bar and the third implanted steel bar according to the distance from the implanted steel bar 200 to the center of the wood component 100, wherein the length of the first implanted steel bar is less than the length of the second implanted steel bar, and the length of the second implanted steel bar is less than the third implanted steel bar. Specifically, the length of the third implanted steel bar is 25d on each side of the joint, that is, 25 times the diameter of the steel bar, and the corresponding hole depth is 25d+2mm on each side of the joint. The length of the second implanted steel bar is 20d, and the corresponding hole depth is 20d+2mm on each side of the joint. The first implanted steel bar is a shear-resistant implanted steel bar, and the length on each side of the joint is 15d, and the corresponding hole depth is 15d+2mm on each side. The implanted steel bar 200 is arranged in the cross section of the wood component 100 according to the spacing requirements, and is arranged in rows or columns, which is not limited by the present invention.

[0055] Preferably, the joint surfaces 120 of the two wood members 100 are the same, and the joint surfaces 120 are perpendicular to the axis of the wood members 100. According to the force and structural requirements, several rows of anchor holes 110 are opened in the cross-sections of both sides of the connected wood members 100. The anchor holes 110 are arranged completely symmetrically in the cross-sections of the wood members 100 on both sides. The depth of the anchor hole 110 on each side is 2mm deeper than the anchor depth, and the opening diameter is 8mm larger than the diameter of the steel bar.

[0056] Please refer to Figure 7 A central support frame 400 is provided at both ends of the implanted steel bar 200 inserted into the implanting hole 110, so that the implanted steel bar 200 can be arranged in the center after being inserted into the implanting holes 110 of the two wooden components 100, ensuring that the implanting glue can completely wrap the implanted steel bar 200 to form a complete and continuous bonding layer, avoiding stress concentration and affecting the bearing capacity.

[0057] In this embodiment, please refer to Figure 8 The central support frame 400 includes three support blocks 410, which are evenly distributed along the circumference of the implanted steel bar 200, that is, the angle between two adjacent support blocks 410 is 120°, and the height of the support block 410 on the surface of the implanted steel bar 200 is 3.5 mm. The support block 410 is, for example, a steel plate or a steel sheet, which can be directly welded and fixed on the implanted steel bar 200. When splicing two wooden components 100, one end of the implanted steel bar 200 can be inserted into the anchor hole 110 of one of the wooden components 100 on one side first. Since a central support frame 400 is provided, the implanted steel bar 200 should be centered in the anchor hole 110. Then the wooden component 100 on the other side is spliced, and the other end of the implanted steel bar 200 is aligned with the anchor hole 110 thereon and inserted. At this time, the implanted steel bar 200 should be in the center of the anchor hole 110 on both sides. Move one side of the wooden component 100 to make it butt-jointed and closed. At this time, the wooden components 100 on both sides should be butt-jointed, and the four sides of the cross-section should be flush. Temporarily fix the wooden components 100 on both sides to keep them stationary.

[0058] Please continue to refer to Figure 4-Figure 6 A temporary tensioning device 300 can also be detachably installed on the two wood components 100. The temporary tensioning device 300 is used to temporarily tension the two wood components 100 before glue injection so that the joint surfaces 120 of the two wood components 100 are attached and pressed.

[0059] In this embodiment, the temporary tensioning device 300 includes a tensioning component and two fixing components, and the two fixing components are detachably mounted on the two wooden components 100;

[0060] The fixing assembly includes two fixing covers 310, a plurality of fixing screws 320 and a plurality of fixing nuts 330. The two fixing covers 310 are respectively located on opposite sides of the wood member 100. The wood member 100 is provided with fixing holes 150 for the fixing screws 320 to pass through. After the fixing screws 320 pass through the fixing holes 150, the two ends of the fixing screws 320 are respectively connected to the two fixing covers 310 through fixing nuts 330.

[0061] The tensioning assembly includes two tensioning screws 340 and four tensioning nuts 350. The two tensioning screws 340 are respectively located on opposite sides of the wooden component 100 and are used to connect the fixing covers 310 on the two wooden components 100 on the corresponding sides. The two ends of the tensioning screws 340 respectively pass through the two fixing covers 310 and are connected to the tensioning nuts 350.

[0062] By screwing the tensioning nut 350, the two wood components 100 can be driven to move relative to each other, so that the joint surfaces 120 of the two wood components 100 are attached and pressed, which is equivalent to applying an initial pre-tensioning force to the two wood components 100 before the glue is injected, ensuring that the two wood components are pressed against each other, preventing the reinforcing bar glue from leaking to the joint surface, and improving the rigidity of the connection node. In addition, since the tensioning screws 340 are respectively provided on the opposite sides of the wood component 100, the joint surfaces 120 of the two wood components 100 can be more tightly attached.

[0063] In this embodiment, please refer to Figure 1 and Figure 3 Each wood component 100 is provided with a glue injection hole 130 connected to the rebar hole 110 at the bottom of the rebar hole 110, and each wood component 100 is provided with an exhaust observation hole 140 connected to the rebar hole 110 at the opening near the rebar hole 110. As the name implies, the glue injection hole 130 is used to inject rebar glue into the gap between the rebar hole 110 and the rebar 200, and the exhaust observation hole 140 is used to facilitate the removal of air during the glue injection process, and can also be used to observe the glue injection situation, so as to judge whether the glue injection is full. In this embodiment, the distance from the exhaust observation hole 140 to the splicing surface 120 is 6 times the aperture of the rebar hole 110.

[0064] Preferably, Figure 3As shown, the diameters of the glue injection hole 130 and the exhaust observation hole 140 are both smaller than the diameter of the rebar planting hole 110, and the glue injection hole 130 and the exhaust observation hole 140 are respectively flush with the top of the rebar planting hole 110. Generally speaking, the diameters of the glue injection hole 130 and the exhaust observation hole 140 are both smaller than the diameter of the rebar planting hole 110. By designing the glue injection hole 130 and the exhaust observation hole 140 to be flush with the top of the rebar planting hole 110, it can be further ensured that the gap between the rebar planting hole 110 and the rebar 200 is filled with rebar planting glue, thereby improving the rebar planting effect.

[0065] Based on this, an embodiment of the present invention further provides a construction method of the above-mentioned wood structure connection node, comprising the following steps:

[0066] S1. A plurality of reinforcing bar holes 110 are correspondingly opened at the joint ends of two wood members 100 and connected by implanting reinforcing bars 200;

[0067] S2, installing a temporary tensioning device 300, and using the temporary tensioning device 300 to tension the two wood components 100, so that the joint surfaces 120 of the two wood components 100 are pressed tightly together;

[0068] S3, injecting glue into all the rebar embedding holes 110 one by one, so that all the rebar embedding holes 110 and the rebar embedding gaps between the rebars 200 are filled with rebar embedding glue;

[0069] S4. After all the glue injection is completed, the temporary tensioning device 300 is removed after the solidification time of the rebar embedding glue is over.

[0070] First, S1 is executed, where a plurality of reinforcing bar holes 110 are correspondingly opened at the joint ends of the two wood components 100 and the two wood components 100 are connected by implanting reinforcing bars 200 .

[0071] In this embodiment, the length of the implanted steel bar 200 is divided into three types, which are the first implanted steel bar, the second implanted steel bar and the third implanted steel bar according to the distance from the implanted steel bar 200 to the center of the wood component 100, wherein the length of the first implanted steel bar is less than the length of the second implanted steel bar, and the length of the second implanted steel bar is less than the third implanted steel bar. Specifically, the length of the third implanted steel bar is 25d on each side of the joint, that is, 25 times the diameter of the steel bar, and the corresponding hole depth is 25d+2mm on each side of the joint. The length of the second implanted steel bar is 20d, and the corresponding hole depth is 20d+2mm on each side of the joint. The first implanted steel bar is a shear-resistant implanted steel bar, and the length on each side of the joint is 15d, and the corresponding hole depth is 15d+2mm on each side. The implanted steel bar is arranged in the cross section of the wood component 100 according to the spacing requirements, and is arranged in rows or columns, which is not limited by the present invention.

[0072] Preferably, the joint surfaces 120 of the two wood members 100 are the same, and the joint surfaces 120 are perpendicular to the axis of the wood members 100. According to the force and structural requirements, several rows of rebar holes 110 are opened in the cross-sections on both sides of the connected wood members 100. The rebar holes 110 are arranged completely symmetrically in the cross-sections of the wood members 100 on both sides. The depth of the rebar hole 110 on each side is 2mm deeper than the rebar, and the opening diameter is 8mm larger than the diameter of the implanted steel bar 200.

[0073] Preferably, a centering support frame 400 is respectively provided at both ends of the implanted steel bar 200 inserted into the implanting hole 110. After the hole is opened, one end of the implanted steel bar 200 can be first inserted into the implanting hole 110 of one side of the wooden component 100. Since a centering support frame 400 is provided, the implanted steel bar 200 should be centered in the implanting hole 110. Then the wooden component 100 on the other side is spliced, and the other end of the implanted steel bar 200 is aligned with the implanting hole 110 thereon and inserted. At this time, the implanted steel bar 200 should be in the center of the implanting holes 110 on both sides. Move one side of the wooden component 100 to make it docked and closed. At this time, the wooden components 100 on both sides should be docked, and the four sides of the cross-section should be flush.

[0074] Then execute S2 to install the temporary tensioning device 300. First, the fixing screw 320 is passed through the fixing hole 150 on the wood component 100, and the two ends are connected to the two fixing covers 310 on both sides of the wood component 100 through the fixing nut 330. Then the tensioning screw 340 and the tensioning nut 350 are installed. At this time, the wood components 100 on both sides and the positions of the implanted steel bars 200 are calibrated to prepare for tensioning. At the same time, the tensioning nuts 350 on both sides of the wood component 100 are tightened to drive the two wood components 100 to move relative to each other, so that the splicing surfaces 120 of the two wood components 100 are gradually attached and pressed, which is equivalent to applying an initial pre-tensioning force to the two wood components 100 before glue injection. The length of the screw after tensioning is determined according to theoretical calculation, and the strain of the tensioning screw 340 is tested at the same time. The pressing force is controlled to be 5% of the design value of the axial pressure of the wood component 100, which is used as the basis for terminating the tensioning operation.

[0075] Then, S3 is executed to inject glue into all the rebar holes 110 one by one, so that all the rebar holes 110 and the gaps between the rebars 200 are filled with rebar glue. In this embodiment, the injection is performed using a high-pressure meterable electronic injection gun, and the injection is performed row by row from the bottom to the top of the cross section of the wood component 100. After the injection of glue into the wood components 100 on both sides of a single rebar 200 is completed, the next rebar is injected with glue.

[0076] In this embodiment, each wood component 100 is provided with a glue injection hole 130 connected to the rebar planting hole 110 at the bottom of the rebar planting hole 110, and each wood component 100 is provided with an exhaust observation hole 140 connected to the rebar planting hole 110 at the opening near the rebar planting hole 110; the steps of injecting glue into the rebar planting hole 110 specifically include:

[0077] Injecting the reinforcing steel bar embedding glue simultaneously from the glue injection holes 130 located at both ends of the embedded reinforcing steel bar 200;

[0078] When the anchor glue overflows to the exhaust observation holes 140 on the two wood components 100, the glue injection of the glue injection hole 130 at one end is stopped, and the glue injection of the glue injection hole 130 at the other end continues;

[0079] When it is found that the exhaust observation hole 140 on the side where glue injection is continued is overflowing with rebar glue, it is immediately blocked and glue injection is continued until the other exhaust observation hole 140 overflows with rebar glue. The injection amount measured by the glue injection gun and the theoretical gap volume are verified to ensure that the rebar gap is completely filled and the other exhaust observation hole 140 is blocked. After the glue injection is completed, the same method is used to inject glue for the next implanted steel bar 200 to complete all the rebar injection.

[0080] Of course, in addition to injecting glue from both ends of the implanted steel bar 200 at the same time, you can also first inject glue from the injection hole 130 at one end of the implanted steel bar 200, and then observe from the outside of the exhaust observation hole 140 on the corresponding side. When the glue just overflows to the observation hole, stop injecting glue at this end, and verify the measurement of the glue injection gun and the theoretical gap volume to ensure that the implanted steel bar gap is completely filled. At the same time, start injecting glue from the injection hole 130 at the other end of the implanted steel bar 200, and use the same method until the glue overflows to the exhaust observation hole on the corresponding side. When checking hole 140, verify the measurement of the glue injection gun and the theoretical gap volume to ensure that the gap for the rebar is completely filled; continue to inject glue, and when it is found that the exhaust observation hole 140 on the corresponding side of the glue injection overflows with rebar glue, immediately block it, and continue to inject glue until the other exhaust observation hole 140 overflows with rebar glue, verify the injection amount and theoretical gap volume measured by the glue injection gun, ensure that the gap for the rebar is completely filled and block the other exhaust observation hole 140, the glue injection is completed, and the same method is used to inject glue for the next implanted steel bar 200 to complete all the rebar injection.

[0081] Finally, S4 is executed. After all the glue injection is completed, the temporary tensioning device 300 is removed after the rebar-embedded glue solidifies. The fixing hole 150 on the wooden component 100 for fixing the temporary tensioning device 300 can be sealed with rebar-embedded glue, thereby completing the splicing and rebar-embedded of the two wooden components 100.

[0082] In summary, the embodiments of the present invention provide a wood structure connection node and a construction method thereof, which can realize the splicing of large-section wood components 100, the connection node has high rigidity, there is no weakening of the node area, and the cross-section of the wood component 100 has no exposed steel plates, bolts, etc., thereby achieving a full-wood effect building appearance, which is conducive to promoting the development of large-span glued wood structure buildings.

[0083] In addition, it should be recognized that although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technician familiar with the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belongs to the scope of protection of the technical solution of the present invention.

Claims

1. A timber structure connection node, characterized in that: include: Aligning the two wood components to be spliced, a plurality of rebar holes are opened at the splicing ends of the two wood components, the rebar holes on the two wood components correspond to each other and are connected by implanting steel bars, and the gaps between the rebar holes and the implanted steel bars are filled with rebar glue; A temporary tensioning device is detachably mounted on the two wooden components, and is used to temporarily tension the two wooden components before glue injection so that the joint surfaces of the two wooden components are attached and pressed.

2. The wood structure connection node according to claim 1, characterized in that: The jointing surfaces of the two wooden components are the same, and the jointing surfaces are perpendicular to the axes of the wooden components.

3. The wood structure connection node according to claim 1, characterized in that: The implanted steel bars include at least a first implanted steel bar and a second implanted steel bar, wherein the first implanted steel bar is closer to the center of the wooden component than the second implanted steel bar, and the length of the first implanted steel bar is shorter than the length of the second implanted steel bar.

4. The wood structure connection node according to claim 1, characterized in that: The two ends of the implanted steel bar inserted into the implanted steel bar hole are respectively provided with central support frames.

5. The wood structure connection node according to claim 4, characterized in that: The central support frame includes three support blocks, and the three support blocks are evenly distributed along the circumference of the implanted steel bars.

6. The wood structure connection node according to claim 1, characterized in that: Each of the wooden components is provided with a glue injection hole connected to the rebar planting hole at the bottom of the hole, and each of the wooden components is provided with an exhaust observation hole connected to the rebar planting hole at an opening close to the rebar planting hole.

7. The wood structure connection node according to claim 6, characterized in that: The diameters of the glue injection hole and the exhaust observation hole are both smaller than the diameter of the reinforcement hole, and the glue injection hole and the exhaust observation hole are respectively flush with the top of the reinforcement hole.

8. The wood structure connection node according to claim 1, characterized in that: The temporary tensioning device comprises a tensioning assembly and two fixing assemblies, and the two fixing assemblies are detachably mounted on the two wooden components respectively; The fixing assembly includes two fixing covers, a plurality of fixing screws and a plurality of fixing nuts. The two fixing covers are respectively located at opposite sides of the wooden component. The wooden component is provided with fixing holes for the fixing screws to pass through. After the fixing screws pass through the fixing holes, both ends of the fixing screws are respectively connected to the two fixing covers through the fixing nuts. The tensioning assembly includes two tensioning screws and four tensioning nuts. The two tensioning screws are respectively located on opposite sides of the wooden component and are used to connect the fixing covers on the two wooden components on the corresponding sides. The two ends of the tensioning screws respectively penetrate the two fixing covers and are connected to the tensioning nuts.

9. A construction method for a wood structure connection node according to any one of claims 1 to 8, characterized in that: The following steps are involved: A number of holes for embedding steel bars are correspondingly opened at the joint ends of the two wooden components and connected by embedding steel bars; Install a temporary tensioning device, and use the temporary tensioning device to tension the two wooden components so that the joint surfaces of the two wooden components are pressed tightly together; Injecting glue into all the rebar embedding holes one by one, so that all the rebar embedding holes and the rebar embedding gaps where the steel bars are implanted are filled with rebar embedding glue; After all the glue injection is completed, the temporary tensioning device is removed after the solidification time of the reinforcement glue is over.

10. The construction method of the wood structure connection node according to claim 9, characterized in that: Each of the wooden components is provided with a glue injection hole connected to the rebar planting hole at the bottom of the hole, and each of the wooden components is provided with an exhaust observation hole connected to the rebar planting hole at the opening close to the rebar planting hole; The step of injecting glue into the rebar planting hole specifically includes: Simultaneously injecting the reinforcing steel bar embedding glue from the glue injection holes located at both ends of the embedded reinforcing steel bar; When the rebar embedding glue overflows to the exhaust observation holes on the two wooden components, the glue injection of the glue injection hole at one end is stopped, and the glue injection of the glue injection hole at the other end continues.

Images