A connection for a glued laminated timber space truss

Abstract

The utility model relates to a kind of connecting structure for glued wood space truss, belong to building and engineering technical field, solve the poor problem of the anti-seismic property of the glued wood truss structure due to stress concentration at node in prior art.The utility model includes anti-seismic cylinder, the anti-seismic cylinder includes outer connecting piece, inner connecting piece and spring buffer piece, the inner connecting piece is located in the outer connecting piece, the spring buffer piece is located at the gap of the inner connecting piece and the outer connecting piece, one end of the spring buffer piece is connected with the inner cavity end portion of the outer connecting piece, and the other end is connected with the inner connecting piece.The end anchoring portion of the integrated material web member of the utility model realizes stage stress, meets the requirement of structure stress, and can realize the demand of anti-seismic performance by friction energy dissipation, elastic energy dissipation piece energy dissipation.

Description

Technical Field

[0001] This utility model relates to the field of building and engineering technology, and in particular to a connection structure for glued laminated timber space trusses. Background Technology

[0002] In existing large-span glued laminated timber truss structures, the material is used in a "timber truss, steel web members" manner, utilizing the high strength of steel to achieve a slender effect, as seen in the Chengdu Tianfu Agricultural Expo Park. For pure timber trusses, the web members are primarily designed as timber members. The truss's stress characteristics are that the chord members bear the main force, while the web members can withstand both tension and compression. Therefore, the connection structure between the web members and the glued laminated timber space truss needs to be designed in accordance with these stress characteristics. Wood is an isotropic material, exhibiting high strength along the grain and low strength in the transverse and tangential grain directions. In pin connections, wood is prone to splitting along the grain direction. Therefore, high-strength glued laminated timber should be selected for the web members, and the connection nodes should have a certain degree of coverage over the wood at the ends of the web members to prevent splitting during bolted connections, which could lead to component detachment and structural failure.

[0003] Truss structures primarily bear axial forces, and the joints are the weakest points in the load-bearing capacity of timber trusses. Stress concentration at these joints is the main cause of overall timber truss failure. Transverse splitting failure easily occurs around the dowel holes in the timber. Existing research has addressed this by locally reinforcing the timber with dowels or wrapping it with CFRP (Carbon Fiber-reinforced Polymer) to restrain the timber, but this has not fundamentally solved the problem of stress concentration around the dowel holes in timber components. Furthermore, small deformations at the joints can also cause large deformations in the truss structure, directly affecting its load-bearing capacity and the overall stability and safety of the timber truss, making it prone to deformation under seismic loads. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a connection structure for glued laminated timber space trusses to solve the problem of poor seismic resistance of existing glued laminated timber truss structures due to stress concentration at the joints.

[0005] This utility model provides a connection structure for glued laminated timber space trusses, including an anti-seismic cylinder. The anti-seismic cylinder includes an outer connector, an inner connector, and a spring buffer. The inner connector is disposed inside the outer connector, and the spring buffer is disposed in the gap between the inner connector and the outer connector. One end of the spring buffer is connected to the inner cavity end of the outer connector, and the other end is connected to the inner connector.

[0006] Furthermore, the spring buffer includes a bolted end plate, an arc-shaped elastic element, and a fixed end plate connected in sequence, with the bolted end plate and the fixed end plate being parallel.

[0007] Furthermore, the external connector includes a first connector and a second connector. The first connector has a first ear plate at its end. The wall thickness of the second connector increases from the end connected to the first connector to the other end. The inner cavity of the second connector has the same diameter.

[0008] Furthermore, the external connector is provided with a first elongated hole and a second elongated hole, with the two first elongated holes and the two second elongated holes respectively located on two perpendicular diameters of the external connector.

[0009] Furthermore, the inner connector is provided with a first bolt hole and a second bolt hole, which are respectively positioned opposite to the first elongated hole and the second elongated hole.

[0010] Furthermore, it also includes engineered wood web members, chord connecting members, and chord filler plates. The chord connecting members and the chord filler plates are both connected to the seismic cylinder, and the two ends of the engineered wood web members are respectively connected to the seismic cylinder.

[0011] Furthermore, the end of the web member of the integrated material is provided with a fourth bolt hole and a fifth bolt hole, the fourth bolt hole being directly opposite the first bolt hole, and the fifth bolt hole being directly opposite the second bolt hole.

[0012] Furthermore, the chord connecting member includes a first connecting plate and a second ear plate, the second ear plate being disposed on one side of the first connecting plate, the first connecting plate having a sixth bolt hole, and the second ear plate being connected to the first ear plate.

[0013] Furthermore, the chord filler plate includes a second connecting plate, a third connecting plate, and a third ear plate. One side of the second connecting plate is perpendicularly connected to the third connecting plate, and the other side of the second connecting plate is provided with the third ear plate.

[0014] Furthermore, the second connecting plate and the third connecting plate form a T-shaped structure.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] (1) The end anchoring part of the integrated timber web member of this utility model realizes phased stress, which not only meets the structural stress requirements, but also meets the seismic performance requirements by using friction energy dissipation and elastic energy dissipation components; the pin groove bearing pressure of the integrated timber web member is effectively reduced, reducing the damage of glued laminated timber components, improving structural strength, and optimizing the stress form of the node; the friction surface set between the external connector and the internal connector, and the spring buffer set at the first gap between the external connector and the internal connector, can effectively resist the impact of earthquake on the building structure.

[0017] (2) The friction surface between the outer connector and the inner connector of this utility model and the spring buffer 13 located at the first gap between the outer connector and the inner connector can effectively resist the influence of earthquake on the building structure, and ensure that when the truss structure unit is working normally, the deformation of the components at the connection structure of the glued laminated timber space truss is small and the pressure stress of the pin groove is not concentrated.

[0018] (3) Based on the structure of the anti-seismic cylinder at the node, this utility model divides the stress stage of the node into two phases: the frictional slip and elastic support stage, and the pin groove bearing stage. The initial stage is characterized by the frictional force F generated under small displacement. f and the elastic restoring force F generated by the deformation of the spring buffer. k This helps to distribute some of the tensile / compressive stress in the dowel groove of the timber, preventing initial stress concentration. When the axial force of the web member of the engineered wood exceeds the frictional force F... f With elastic restoring force F k After the resultant force, the resultant force F generated by the pin slot of the web member of the engineered wood L The frictional force F generated by the aforementioned external and internal connectors f and the elastic restoring force F generated by the spring buffer k Sharing the responsibility can effectively reduce the impact of vibration on the structure.

[0019] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0020] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0021] Figure 1 This is a schematic diagram of the connection structure for a glued laminated timber space truss according to a specific embodiment.

[0022] Figure 2 This is a schematic diagram of the connection structure between the seismic cylinder and the chord member in a specific embodiment.

[0023] Figure 3 This is a schematic diagram of the connection structure between the seismic cylinder and the chord filler plate in a specific embodiment.

[0024] Figure 4 This is a schematic diagram of the connection structure between the seismic cylinder and the engineered wood web member in a specific embodiment.

[0025] Figure 5This is a schematic diagram of the external connector in a specific embodiment;

[0026] Figure 6 This is one of the schematic diagrams of the connection structure between the external connector and the spring buffer in a specific embodiment;

[0027] Figure 7 This is a schematic diagram of the internal connector in a specific embodiment;

[0028] Figure 8 This is a second schematic diagram of the connection structure between the external connector and the spring buffer in a specific embodiment.

[0029] Figure 9 This is a schematic diagram of the structure of the web member of the laminated timber in a specific embodiment;

[0030] Figure 10 This is one of the structural schematic diagrams of the chord connection member in a specific embodiment;

[0031] Figure 11 This is the second structural schematic diagram of the chord connection component in a specific embodiment;

[0032] Figure 12 This is one of the structural schematic diagrams of the chord filler plate in a specific embodiment;

[0033] Figure 13 This is the second structural schematic diagram of the chord filler plate in a specific embodiment;

[0034] Figure 14 This is a schematic diagram of a glued laminated timber space truss structure according to a specific embodiment.

[0035] Figure label:

[0036] 1-Seismic isolation cylinder; 11-External connector; 111-Elongated hole; 112-First connector; 113-Second connector; 114-First ear plate; 115-First elongated hole; 116-Second elongated hole; 12-Internal connector; 121-First bolt hole; 122-Second bolt hole; 123-End cylinder of web member; 124-Connecting base plate; 125-Base plate fixing hole; 13-Spring buffer; 131-Bolt connection end plate; 132-Fixed end plate; 133-Arc-shaped elastic element; 134-Third bolt hole; 14-Ring clamp;

[0037] 2-Laminated timber web member; 21-Support column; 22-Connecting end column; 221-Fourth bolt hole; 222-Fifth bolt hole; 3-Chord connecting member; 31-First connecting plate; 311-Sixth bolt hole; 32-Second ear plate; 4-Chord filler plate; 41-Second connecting plate; 42-Third connecting plate; 421-Seventh bolt hole; 43-Third ear plate. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0039] A specific embodiment of this utility model, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 14 As shown, a connection structure for glued laminated timber space trusses is disclosed, including seismic cylinder 1, laminated timber web members 2, chord connecting members 3 and chord filling plates 4. The chord connecting members 3 and chord filling plates 4 are both connected to two seismic cylinders 1. The two ends of the laminated timber web members 2 are respectively connected to the seismic cylinders 1 to form a triangular or quadrangular pyramidal structure.

[0040] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the seismic sleeve 1 includes an outer connector 11 and an inner connector 12. The inner connector 12 is located inside the outer connector 11 and is connected to the engineered wood web member 2. The outer connector 11 is used to connect the chord member connecting member 3 and the chord member filler plate 4. It should be noted that the inner wall of the outer connector 11 and the outer wall of the inner connector 12 are coated with an anti-friction coating.

[0041] For ease of connection with the inner connector 12, such as Figure 6 As shown, one end of the outer connector 11 is provided with an elongated hole 111, which communicates with the end of the outer connector 11. Multiple elongated holes 111 are provided, and these holes are evenly arranged around the circumference of the outer connector 11. Preferably, four elongated holes 111 are provided, and these four holes are evenly arranged around the circumference of the outer connector 11.

[0042] In this embodiment, an elongated hole 111 is provided at one end of the outer connector 11. The direction of the elongated hole 111 is consistent with the axial direction of the outer connector 11, so that one end of the outer connector 11 is discontinuous and piece by piece wrapping the outer surface of the inner connector 12. The pieced structure at one end of the outer connector 11 also facilitates the insertion of the inner connector 12.

[0043] Furthermore, combined Figure 2 , Figure 3 and Figure 6As shown, the outer connector 11 includes a first connector 112 and a second connector 113. The first connector 112 is used to connect the chord connecting member 3 and the chord filler plate 4, and the second connector 113 is used to connect the inner connector 12. The first connector 112 has a frustum-shaped structure and a first ear plate 114 is provided at its end. Preferably, the first connector 112 has a frustum-shaped structure. One end of the first connector 112 is connected to the first ear plate 114, and the other end is connected to the second connector 113. The second connector 113 has a hollow cylindrical structure, and an elongated hole 111 is provided on the second connector 113. One end of the elongated hole 111 communicates with one end of the second connector 113, and the length of the elongated hole 111 is less than that of the second connector 113 but greater than half the length of the second connector 113. It should be noted that the outer connector 11 is preferably integrally formed.

[0044] It is worth noting that the wall thickness of the second connector 113 increases from the end connected to the first connector 112 to the other end. The inner cavity of the second connector 113 has a constant diameter.

[0045] In order to connect with the inner connector 12, combined Figure 2 , Figure 3 and Figure 6 As shown, the outer connector 11 is also provided with a first elongated oval hole 115 and a second elongated oval hole 116. The length directions of both the first elongated oval hole 115 and the second elongated oval hole 116 are consistent with the length direction of the outer connector 11. There are two of each type of hole. The line connecting the two first elongated oval holes 115 is the diameter of the outer connector 11, and the line connecting the two second elongated oval holes 116 is also the diameter of the outer connector 11. Furthermore, the line connecting the two first elongated oval holes 115 is perpendicular to the line connecting the two second elongated oval holes 116.

[0046] For example, the end of the external connector 11 is divided into four lobes by an elongated hole 111, wherein two symmetrical lobes are provided with a first elongated hole 115, and the other two symmetrical lobes are provided with a second elongated hole 116.

[0047] Preferably, the first elongated hole 115 is connected to the end of the outer connector 11, which is the connection end with the inner connector 12. The second elongated hole 116 is provided near the other end of the elongated hole 111. Both the first elongated hole 115 and the second elongated hole 116 are located within the length region of the elongated hole 111.

[0048] Combination Figure 4 , Figure 5 and Figure 7 As shown, the inner connector 12 is preferably a rotating body structure, with one end open, and the integrated timber web rod 2 inserted into the inner cavity of the inner connector 12. The length of the inner connector 12 is less than the length of the second connector 113, but greater than the length of the elongated hole 111.

[0049] For connection with the engineered wood web 2 and the external connector 11, such as Figure 7 As shown, the inner connector 12 is provided with a first bolt hole 121 and a second bolt hole 122. Both the first bolt hole 121 and the second bolt hole 122 penetrate the side wall of the inner connector 12, and the two first bolt holes 121 are located on the diameter of the inner connector 12, and the two second bolt holes 122 are located on the diameter of the inner connector 12. The first bolt hole 121 is located close to the opening of the inner connector 12, and the second bolt hole 122 is located away from the opening of the inner connector 12. When the inner connector 12 and the outer connector 11 are connected, the first bolt hole 121 and the first elongated hole 115 are aligned, and the second bolt hole 122 and the second elongated hole 116 are aligned.

[0050] Specifically, such as Figure 7 As shown, the inner connector 12 includes a web end cylinder 123 and a connecting base plate 124. The web end cylinder 123 is a cylindrical tube, and the connecting base plate 124 is a disc plate. The connecting base plate 124 serves as the bottom seal of the web end cylinder 123, blocking one end opening of the web end cylinder 123, so that the inner connector 12 forms a cylindrical structure with one end open and one end closed.

[0051] To improve the seismic performance of structures, such as Figure 8 As shown, the shock-absorbing cylinder 1 also includes a spring buffer 13, which is disposed in the inner cavity of the outer connector 11 and connected to the inner connector 12. Understandably, after the inner connector 12 and the outer connector 11 are connected, a first gap is provided between the bottom of the inner connector 12 and the end of the inner cavity of the outer connector 11. The spring buffer 13 is disposed at this first gap, with one end of the spring buffer 13 connected (e.g., abutting) to the end of the inner cavity of the outer connector 11 and the other end connected to the inner connector 12.

[0052] Understandably, one end of the first connector 112 is connected to the first ear plate 114, and the other end is provided with the aforementioned first gap between it and the connecting base plate 124 of the inner connector 12. The spring buffer 13 is provided at the first gap, one end of the spring buffer 13 abuts against the end of the first connector 112, and the other end is connected to the connecting base plate 124 of the inner connector 12.

[0053] The spring buffer 13 is a spring, a spring sheet, or a C-shaped spring steel; preferably, the spring buffer 13 is a C-shaped spring steel. For example... Figure 8 As shown, the C-shaped spring steel includes a bolted end plate 131, a fixed end plate 132, and an arc-shaped elastic element 133. The bolted end plate 131, the arc-shaped elastic element 133, and the fixed end plate 132 are connected sequentially. The bolted end plate 131 and the fixed end plate 132 are parallel, with an opening in the C-shaped spring steel between them. The bolted end plate 131 abuts against the end of the first connecting member 112, and the fixed end plate 132 is connected to the connecting base plate 124.

[0054] To achieve the connection between the fixed end plate 132 and the connecting base plate 124, combined with Figure 7 and Figure 8 As shown, the connecting base plate 124 has base plate fixing holes 125, and the fixing end plate 132 has third bolt holes 134. Bolts are used to connect the spring buffer 13 and the inner connecting member 12 through the base plate fixing holes 125 and the third bolt holes 134. To prevent the spring buffer 13 from rotating after connection, there are two base plate fixing holes 125 and four third bolt holes 134, which are connected to the two spring buffers 13. The openings of the two spring buffers 13 face each other, and a second gap is provided between the two spring buffers 13.

[0055] In order to allow the outer connector 11 to better cover the inner connector 12, such as Figure 5 As shown, the seismic cylinder 1 also includes a hoop 14, which is fitted onto the outer connector 11. The hoop 14 has internal threads, and the outer wall of the outer connector 11 has external threads, specifically located in the area where the elongated holes 111 are located. The hoop 14 is threadedly connected to the outer connector 11. The hoop 14 is inserted into the small end of the outer connector 11 and gradually rotated. Since the outer connector 11 has multiple elongated holes 111 evenly distributed and its wall thickness gradually increases, when the hoop 14 is tightened, the multiple petals of the outer connector 11 tend to tighten, thereby pressing the inner connector 12.

[0056] For connection with inner connector 12, such as Figure 9 As shown, the laminated timber web member 2 includes a support column 21 and a connecting end column 22. The connecting end column 22 is located at the end of the support column 21 and is concentrically arranged with the support column 21. The diameter of the connecting end column 22 is smaller than the diameter of the support column 21. For example, the laminated timber web member 2 is formed by end-cutting of a cylindrical rod of equal diameter. The diameter of the connecting end column 22 is the same as the inner diameter of the inner connector 12, and the connecting end column 22 is inserted into the inner connector 12.

[0057] Furthermore, such as Figure 9As shown, the connecting end post 22 is provided with a fourth bolt hole 221 and a fifth bolt hole 222. The fourth bolt hole 221 and the fifth bolt hole 222 are perpendicular and both pass through the diameter of the connecting end post 22. The fourth bolt hole 221 is located near the end of the connecting end post 22, and the fifth bolt hole 222 is located near the support post 21. The integrated timber web member 2 is inserted into the inner connector 12, with the fourth bolt hole 221 facing the first bolt hole 121 and the fifth bolt hole 222 facing the second bolt hole 122. A bolt is used to pass through the first elongated hole 115, the first bolt hole 121, and the fourth bolt hole 221 to connect with a nut, and another bolt is used to pass through the second elongated hole 116, the second bolt hole 122, and the fifth bolt hole 222 to connect with a nut, thus connecting the integrated timber web member 2, the inner connector 12, and the outer connector 11 together.

[0058] In order to connect with the seismic-resistant cylinder 1, as follows Figure 10 and Figure 11 As shown, the chord connecting member 3 includes a first connecting plate 31 and a second ear plate 32, with the second ear plate 32 located on one side of the first connecting plate 31. Each second ear plate 32 is connected to a seismic isolation cylinder 1. Specifically, the second ear plate 32 is bolted to the first ear plate 114, with the first ear plate 114 inserted into the opening of the second ear plate 32 and connected by bolts. Depending on the installation requirements, two or three second ear plates 32 may be provided. When two second ear plates 32 are provided, they are arranged parallel to each other and perpendicular to the first connecting plate 31. It is worth noting that the first ear plate 114 is rotatably connected to the bolt at this location. When three second ear plates 32 are provided, they are evenly spaced circumferentially at 120° intervals.

[0059] like Figure 10 and Figure 11 As shown, the first connecting plate 31 is provided with a sixth bolt hole 311, and there are multiple sixth bolt holes 311 distributed around the grouped second ear plates 32. It should be noted that the grouped distribution here refers to the case of providing two second ear plates 32 or the case of providing three second ear plates 32.

[0060] In order to connect with the seismic-resistant cylinder 1, as follows Figure 12 and Figure 13As shown, the chord filler plate 4 includes a second connecting plate 41, a third connecting plate 42, and a third ear plate 43. The second connecting plate 41 and the third connecting plate 42 are arranged perpendicularly to form a T-shaped structure. The third ear plate 43 is connected to the second connecting plate 41. The third connecting plate 42 has multiple seventh bolt holes 421. That is, one side of the second connecting plate 41 is perpendicularly connected to the third connecting plate 42, and the other side of the second connecting plate 41 has a third ear plate 43. Each third ear plate 43 can connect to a seismic cylinder 1. A first ear plate 114 is inserted into the opening of the third ear plate 43 and connected by bolts. It is worth noting that the first ear plate 114 is rotatably connected to the bolts at this location.

[0061] like Figure 12 and Figure 13 As shown, depending on the installation requirements, there may be two or four third ear plates 43. When there are two third ear plates 43, they are arranged in a V-shape on the second connecting plate 41, and the third ear plates 43 are inclined towards the side plate of the second connecting plate 41. The third ear plates 43 are located at the edge of the second connecting plate 41. When there are four third ear plates 43, the four third ear plates 43 are evenly arranged circumferentially at 90° intervals.

[0062] The connection structure for glued laminated timber space trusses in this embodiment, based on the structure of the seismic-resistant cylinder 1 at the node, divides the stress stages of the node into: the frictional slip and elastic support stage, and the dowel bearing stage. In the early stage, the frictional force F generated under small displacement... f and the elastic restoring force F generated by the deformation of the spring buffer 13 k This helps to distribute some of the tensile / compressive stress in the dowel groove of the timber, preventing initial stress concentration. When the axial force of the web member 2 of the engineered wood exceeds the frictional force F... f With elastic restoring force F k After the resultant force, the resultant force F generated by the pin slot of the web member 2 of the engineered wood L The frictional force F generated between the external connector 11 and the internal connector 12 mentioned above f and the elastic restoring force F generated by the spring buffer 13 k Sharing the responsibility can effectively reduce the impact of vibration on the structure.

[0063] In this embodiment, the connection structure for the glued laminated timber space truss achieves phased stress distribution at the end anchorage of the laminated timber web member 2, satisfying both structural stress requirements and seismic performance requirements through frictional energy dissipation and elastic energy dissipation. The dowel groove bearing pressure of the laminated timber web member 2 is effectively reduced, minimizing damage to the glued laminated timber components, improving structural strength, and optimizing the stress distribution at the nodes. The friction surface between the outer connector 11 and the inner connector 12, and the spring buffer 13 located at the first gap between the outer connector 11 and the inner connector 12, can effectively resist the impact of earthquakes on the building structure.

[0064] The friction surface provided between the outer connector 11 and the inner connector 12 of the truss structure unit in this embodiment, and the spring buffer 13 provided at the first gap between the outer connector 11 and the inner connector 12, can effectively resist the impact of earthquake on the building structure. When the truss structure unit is working normally, the deformation of the components at the connection structure of the glued laminated timber space truss is small and the stress of the pin groove bearing is not concentrated. During an earthquake, large axial deformation of the web members at the node can be generated, ensuring the purpose of "no damage in small earthquakes, repairable in moderate earthquakes, and no collapse in large earthquakes".

[0065] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure for a glued timber space truss, characterized in that The device includes an anti-vibration cylinder (1), which includes an outer connector (11), an inner connector (12), and a spring buffer (13). The inner connector (12) is located inside the outer connector (11), and the spring buffer (13) is located in the gap between the inner connector (12) and the outer connector (11). One end of the spring buffer (13) is connected to the inner cavity end of the outer connector (11), and the other end is connected to the inner connector (12).

2. The connection for a glued timber space truss according to claim 1, characterized in that The spring buffer (13) includes a bolted end plate (131), an arc-shaped elastic element (133), and a fixed end plate (132) connected in sequence, with the bolted end plate (131) and the fixed end plate (132) being parallel.

3. The connection structure for glued laminated timber space trusses according to claim 1 or 2, characterized in that, The external connector (11) includes a first connector (112) and a second connector (113). The first connector (112) has a first ear plate (114) at its end. The wall thickness of the second connector (113) increases from the end connected to the first connector (112) to the other end. The inner cavity of the second connector (113) has the same diameter.

4. The connection for a glued timber space truss according to claim 3, characterized in that The external connector (11) is provided with a first elongated hole (115) and a second elongated hole (116), with the two first elongated holes (115) and the two second elongated holes (116) located on two perpendicular diameters of the external connector (11).

5. The connection for a glued timber space truss according to claim 4, characterized in that The inner connector (12) is provided with a first bolt hole (121) and a second bolt hole (122), and the first bolt hole (121) and the second bolt hole (122) are respectively positioned opposite to the first elongated hole (115) and the second elongated hole (116).

6. The connection for a glued timber space truss according to claim 5, characterized in that It also includes a laminated timber web member (2), a chord connecting member (3) and a chord filling plate (4), both of which are connected to the seismic cylinder (1), and both ends of the laminated timber web member (2) are connected to the seismic cylinder (1).

7. The connection for a glued timber space truss according to claim 6, characterized in that The end of the integrated material web member (2) is provided with a fourth bolt hole (221) and a fifth bolt hole (222). The fourth bolt hole (221) is directly opposite to the first bolt hole (121), and the fifth bolt hole (222) is directly opposite to the second bolt hole (122).

8. The connection for a glued timber space truss according to claim 6, characterized in that The chord connecting member (3) includes a first connecting plate (31) and a second ear plate (32). The second ear plate (32) is located on one side of the first connecting plate (31). The first connecting plate (31) has a sixth bolt hole (311). The second ear plate (32) is connected to the first ear plate (114).

9. The connection structure for glulam space trusses according to any of claims 6-8, characterized in that, The chord filler plate (4) includes a second connecting plate (41), a third connecting plate (42) and a third ear plate (43). One side of the second connecting plate (41) is perpendicularly connected to the third connecting plate (42), and the other side of the second connecting plate (41) is provided with the third ear plate (43).

10. The connection for a glued timber space truss according to claim 9, characterized in that The second connecting plate (41) and the third connecting plate (42) form a T-shaped structure.

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