Rigid connection structure of cross joint of laminated wood component

Abstract

The utility model discloses a rigid connection structure for cross joints of laminated wood components. Two laminated wood components are cut off at the joints respectively, and T-shaped grooves and inverted-T-shaped grooves are formed in the middle tops and the bottoms of the cut-off faces respectively; the two groups of shear rings are respectively welded on the back surfaces of the wing plates of the upper and lower T-shaped steel connecting pieces; the upper T-shaped steel connecting piece and the lower T-shaped steel connecting piece are inserted into the T-shaped grooves and the inverted-T-shaped grooves of the two laminated wood components respectively, sawteeth of the shear rings are perpendicularly nailed into the top faces and the bottom faces of the T-shaped grooves and the inverted-T-shaped grooves respectively, and web plates of the upper T-shaped steel connecting piece and the lower T-shaped steel connecting piece are fixed into the T-shaped grooves and the inverted-T-shaped grooves through positioning bolts and pins. Wing plates of the upper T-shaped steel connecting piece and the lower T-shaped steel connecting piece are fixed on the top surfaces and the bottom surfaces of the T-shaped groove and the inverted T-shaped groove through self-tapping screws; and adhesive layers are arranged between the upper and lower T-shaped steel connecting pieces and the T-shaped grooves and the inverted T-shaped grooves, between the positioning bolts and the bolt holes and between the pins and the pin holes. According to the utility model, bidirectional rigid transmission of the internal force of the joint at the cross joint of the laminated wood member can be realized.

Description

Technical Field

[0001] This utility model relates to a rigid connection structure for cross-shaped nodes of glued laminated timber components. Background Technology

[0002] For cross-shaped joints, concrete structures can achieve continuous rigid joints by tying reinforcing bars and casting in place, while steel structures can achieve them by welding. For glued laminated timber (GLLT) members, since on-site gluing facilities and conditions are unavailable, cross-shaped joint connections typically involve making cuts 10 at the intersection of two GLLT members 1, each cut to a depth equal to half the cross-sectional height. These cuts are then connected at the intersection using through bolts 11 (see [link to relevant documentation]). Figure 1 This connection method actually weakens the cross-section of the two glued laminated timber members at the intersection, resulting in a decrease in the load-bearing capacity of the two glued laminated timber members. This does not conform to the design principle of "strong node, weak member". Moreover, this connection method is a hinged connection, which cannot achieve a rigid connection of the node through bolts, that is, effectively transfer the bending moment, shear force and axial force of the glued laminated timber member cross-section. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a rigid connection structure for cross-shaped nodes of glued laminated timber components, which can realize bidirectional rigid transmission of internal forces at the cross-connection points of glued laminated timber components.

[0004] The purpose of this utility model is achieved as follows: a rigid connection structure for a cross-shaped joint of glued laminated timber components, comprising two glued laminated timber components connected in a cross shape, four T-shaped steel sections, two sets of shear rings, two sets of self-tapping screws, two sets of pins, and sixteen positioning bolts; wherein,

[0005] Two glued laminated timber members are each cut in their entirety at the intersection. A T-slot is made on the top of the cut surface of each of the two glued laminated timber members. Two rows of upper connecting holes are made on the upper part of the two sides of the cut surface of the two glued laminated timber members corresponding to the T-slot. The two upper connecting holes at the beginning and the two upper connecting holes at the end of the two rows are upper bolt holes, and the remaining upper connecting holes are upper pin holes. An inverted T-slot is made on the bottom of the cut surface of each of the two glued laminated timber members. Two rows of lower connecting holes are made on the lower part of the two sides of the cut surface of the two glued laminated timber members corresponding to the inverted T-slot. The two lower connecting holes at the beginning and the two lower connecting holes at the end of the two rows are lower bolt holes, and the remaining lower connecting holes are lower pin holes.

[0006] The width of the flange of the T-shaped steel is less than the thickness of the glued laminated timber component; four T-shaped steels are each welded in pairs across their entire cross section to form an upper T-shaped steel connector and a lower T-shaped steel connector; a row of self-tapping screw holes is symmetrically opened on both sides of the web of the upper T-shaped steel connector and the lower T-shaped steel connector; the web of the upper T-shaped steel connector has upper bolt holes and upper pin holes that correspond one-to-one with the upper bolt holes and upper pin holes on the two glued laminated timber components, and the web of the lower T-shaped steel connector has lower bolt holes and lower pin holes that correspond one-to-one with the lower bolt holes and lower pin holes on the two glued laminated timber components.

[0007] One end face of the shear ring is flat, and the other end face of the shear ring is provided with serrations; the two sets of shear rings are welded one-to-one on the back of the wing plate of the upper T-shaped steel connector and the back of the wing plate of the lower T-shaped steel connector.

[0008] The upper T-shaped steel connector is inserted into the T-slot of the two glued laminated timber members with the flange facing upwards. The serrations of a set of shear rings on the upper T-shaped steel connector are vertically driven into the top surface of the T-slot of the two glued laminated timber members. First, eight positioning bolts are inserted into the upper bolt holes on the two glued laminated timber members and the upper bolt holes on the web of the upper T-shaped steel connector to fix the web of the upper T-shaped steel connector into the T-slot of the two glued laminated timber members. Then, a set of pins are inserted one-to-one into the upper pin holes on the two glued laminated timber members and the upper pin holes on the web of the upper T-shaped steel connector. Finally, a set of self-tapping screws is used to fix the flange of the upper T-shaped steel connector to the top surface of the T-slot of the two glued laminated timber members.

[0009] The lower T-shaped steel connector is inserted into the inverted T-shaped groove of the two glued laminated timber members with the flange facing downwards. The serrations of a set of shear rings on the lower T-shaped steel connector are vertically driven into the bottom surface of the inverted T-shaped groove of the two glued laminated timber members. First, eight additional positioning bolts are inserted into the lower bolt holes on the two glued laminated timber members and the lower bolt holes on the web of the lower T-shaped steel connector to fix the web of the lower T-shaped steel connector into the inverted T-shaped groove of the two glued laminated timber members. Then, another set of pins is inserted into the lower pin holes on the two glued laminated timber members and the lower pin holes on the web of the lower T-shaped steel connector. Finally, another set of self-tapping screws is used to fix the flange of the lower T-shaped steel connector to the bottom surface of the inverted T-shaped groove of the two glued laminated timber members.

[0010] An adhesive layer is provided between the upper T-shaped steel connector and the T-slots on the two glued laminated timber members, and between the lower T-shaped steel connector and the inverted T-slots on the two glued laminated timber members; an adhesive layer is also provided between all the positioning bolts and their corresponding upper bolt holes and their corresponding lower bolt holes, and between all the pins and their corresponding upper pin holes and their corresponding lower pin holes.

[0011] In the rigid connection structure of the cross-shaped joint of the above-mentioned glued laminated timber components, the number of shear rings in each group is half the number of the two rows of self-tapping screw holes on the upper T-shaped steel connector or the two rows of self-tapping screw holes on the lower T-shaped steel connector; one group of shear rings is coaxial with the two rows of self-tapping screw holes on the upper T-shaped steel connector at intervals, and the other group of shear rings is coaxial with the two rows of self-tapping screw holes on the lower T-shaped steel connector at intervals.

[0012] In the rigid connection structure of the cross-shaped joint of the above-mentioned glued laminated timber components, the serrations of the shear ring are serrated rings fixed to the edge of the shear ring.

[0013] The rigid connection structure of the cross-shaped joint of the glued laminated timber components of this utility model is characterized by:

[0014] 1. At the joint of the two cross-connected glued laminated timber members, the entire cross section is cut off, and upper and lower T-shaped steel connectors are custom-made. The cut surfaces of the two glued laminated timber members are connected to the web of the T-shaped steel connectors by positioning bolts and pins. The top and bottom surfaces of the cut surfaces of the two glued laminated timber members are connected to the flanges of the upper and lower T-shaped steel connectors one by one by self-tapping screws and shear rings, ensuring that the two glued laminated timber members form a bidirectional rigid connection through the upper and lower T-shaped steel connectors, so as to achieve effective transmission of axial force, bending moment and shear force between the two glued laminated timber members.

[0015] 2. The gluing of the T-shaped steel connectors, positioning bolts, and pins to the grooved gaps on the glued laminated timber components ensures a tight bond between the glued laminated timber components and the positioning bolts, pins, and T-shaped steel connectors, effectively preventing wood shrinkage and avoiding loosening of the connections. Attached Figure Description

[0016] Figure 1 This is a three-dimensional diagram of the cross-shaped connection structure of glued laminated timber components in the prior art;

[0017] Figure 2 This is a perspective view of the rigid connection structure of the cross-shaped joint of the glued laminated timber component of this utility model;

[0018] Figure 3 This is an exploded perspective view of this utility model;

[0019] Figure 4 This is a top view of the upper T-shaped steel connector or the lower T-shaped steel connector of this utility model;

[0020] Figure 5 This is a perspective view of the shear ring of this utility model;

[0021] Figure 6 This is a three-dimensional view of two glued laminated timber components during step S1 of making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model.

[0022] Figure 7a This is a perspective view of the upper or lower T-shaped steel connector during step S2 of the process of making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model.

[0023] Figure 7b This is a side view of the upper or lower T-shaped steel connector during step S3 of making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model.

[0024] Figure 7c yes Figure 7b Top view;

[0025] Figure 7d yes Figure 7b AA direction view;

[0026] Figure 8a This is a structural diagram of step S4 when making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model.

[0027] Figure 8b yes Figure 8a Enlarged view of the P-section;

[0028] Figure 9a This is a structural diagram of step S5 when making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model.

[0029] Figure 9b yes Figure 9a BB view in the middle;

[0030] Figure 10 This is a structural diagram of step S6 when making the rigid connection structure of the cross-shaped node of the glued laminated timber component of this utility model. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Please see Figures 2 to 5 The rigid connection structure of the cross-shaped joint of the glued laminated timber components of this utility model includes two glued laminated timber components 1 and 1' connected in a cross shape, four T-shaped steels 2, two sets of shear rings 3, two sets of self-tapping screws 4, two sets of pins 5, and sixteen positioning bolts 6 (with two washers and one nut).

[0033] Two glued laminated timber components 1 and 1' are each cut at their cross-joint. A T-slot 1A is formed at the top center of each cut surface of the two glued laminated timber components 1 and 1'. Two rows of upper connecting holes are formed on the upper part of both sides of the cut surface of the two glued laminated timber components 1 and 1', corresponding to the T-slot 1A. Two upper connecting holes at the beginning and two at the end of the two rows are upper bolt holes 11a, and the remaining upper connecting holes are upper pin holes 12a. An inverted T-slot 1B is formed at the bottom center of each cut surface of the two glued laminated timber components 1 and 1'. Two rows of lower connecting holes are formed on the lower part of both sides of the cut surface of the two glued laminated timber components 1 and 1', corresponding to the inverted T-slot 1B. Two lower connecting holes at the beginning and two at the end of the two rows are lower bolt holes 11b, and the remaining lower connecting holes are lower pin holes 12b.

[0034] The width of the flange 21 of the T-beam 2 is less than the thickness of the glued laminated timber member 1; the four T-beams 2 are each welded in pairs across their entire cross section to form an upper T-beam connector 2A and a lower T-beam connector 2B; a row of self-tapping screw holes 20 are symmetrically opened on both sides of the web plate 22 on the flange 21 of the upper T-beam connector 2A and the flange 21 of the lower T-beam connector 2B; the web plate 22 of the upper T-beam connector 2A has upper bolt holes 21a and upper pin holes 22a corresponding to the upper bolt holes 11a and upper pin holes 12a on the two glued laminated timber members 1 and 1', and the web plate 22 of the lower T-beam connector 2B has lower bolt holes 21b and lower pin holes 22b corresponding to the lower bolt holes 11b and lower pin holes 11b on the two glued laminated timber members 1 and 1'.

[0035] The inner diameter of the shear ring 3 is larger than the diameter of the self-tapping screw hole 20. One end face of the shear ring 3 is flat, and the other end face of the shear ring 3 is provided with serrations 30, which are serrated rings fixed to the edge of the shear ring 3. The number of each set of shear rings 3 is half the number of the two rows of self-tapping screw holes 20 on the upper T-shaped steel connector 2A or the two rows of self-tapping screw holes 20 on the lower T-shaped steel connector 2B. One set of shear rings 3 is welded one-to-one to the back of the wing plate 21 of the upper T-shaped steel connector 2A and is coaxial with the two rows of self-tapping screw holes 20 at intervals. The other set of shear rings 3 is welded one-to-one to the back of the wing plate 21 of the lower T-shaped steel connector 2B and is coaxial with the two rows of self-tapping screw holes 20 at intervals.

[0036] The upper T-shaped steel connector 2A is inserted into the T-slot 1A of the two glued laminated timber members 1 and 1' with the flange 21 facing upwards. The serrations 30 of a set of shear rings 3 on the upper T-shaped steel connector 2A are vertically driven into the top surface of the T-slot 1A of the two glued laminated timber members 1 and 1'. Eight positioning bolts 6 are first inserted into the upper bolt holes 11a on the two glued laminated timber members 1 and 1' and the upper bolt holes 21a on the web plate 22 of the upper T-shaped steel connector 2A to fix the web plate 22 of the upper T-shaped steel connector 2A into the T-slot 1A of the two glued laminated timber members 1 and 1'. The positioning bolts 6 are used to fix the web plate 21 of the upper T-shaped steel connector 2A. The installation position also serves as a load-bearing bolt for shear force transmission between the two glued laminated timber components 1 and 1'. A set of pins 5 are then inserted one-to-one into the upper pin holes 12a on the two glued laminated timber components 1 and 1' and the upper pin holes 22a on the web plate 22 of the upper T-shaped steel connector 2A. The pins 5 and the positioning bolts 6 are used together to fix the web plate 22 of the upper T-shaped steel connector 2A to the two glued laminated timber components 1 and 1', transmitting the shear force and axial force between the two glued laminated timber components 1 and 1'. Then, a set of self-tapping screws 4 are used to fix the flange 21 of the upper T-shaped steel connector 2A to the top surface of the T-shaped groove 1A of the two glued laminated timber components 1 and 1'.

[0037] The lower T-shaped steel connector 2B is inserted into the inverted T-shaped groove 1B of the two glued laminated timber members 1 and 1' with the flange 21 facing downwards. The serrations 30 of a set of shear rings 3 on the lower T-shaped steel connector 2B are vertically driven into the bottom surface of the inverted T-shaped groove 1B of the two glued laminated timber members 1 and 1'. Eight additional positioning bolts 6 are then inserted into the lower bolt holes 11b on the two glued laminated timber members 1 and 1' and the lower bolt holes 21b on the web of the lower T-shaped steel connector 2B to fix the web 22 of the lower T-shaped steel connector 2B into the inverted T-shaped groove 1B of the two glued laminated timber members 1 and 1'. The positioning bolts 6 are used to fix the web 22 of the lower T-shaped steel connector 2B. The installation position of 1 also serves as the load-bearing bolt for shear force transmission between the two glued laminated timber components 1 and 1'. Another set of pins 5 are inserted one-to-one into the lower pin holes 12b on the two glued laminated timber components 1 and 1' and the lower pin holes 22b on the web plate 22 of the lower T-shaped steel connector 2B. The pins 5 and the positioning bolts 6 are used together to fix the web plate 22 of the lower T-shaped steel connector 2B on the two glued laminated timber components 1 and 1', transmitting the shear force and axial force between the two glued laminated timber components 1 and 1'. Then, another set of self-tapping screws 4 are used to fix the flange 21 of the lower T-shaped steel connector 2B to the bottom surface of the inverted T-shaped groove 1B of the two glued laminated timber components 1.

[0038] Special structural wood adhesive is injected between the upper T-shaped steel connector 2A and the T-slots 1A on the two glued laminated timber members 1 and 1', and between the lower T-shaped steel connector 2B and the inverted T-slots 1B on the two glued laminated timber members 1 and 1', until the adhesive overflows. After the structural adhesive cures, an adhesive layer is formed. Special structural wood adhesive is also injected between all the positioning bolts 6 and their corresponding upper and lower bolt holes, and between all the pins 5 and their corresponding upper and lower pin holes, until the adhesive overflows. After the structural adhesive cures, an adhesive layer is formed. Injecting structural wood adhesive helps strengthen the connection performance between the T-shaped steel, bolts, and pins and the two glued laminated timber members 1 and 1', effectively preventing wood shrinkage and ensuring the reliability of the connection.

[0039] This utility model discloses a rigid connection structure for a cross-shaped joint of glued laminated timber (GLLT) components. The structure involves disconnecting the two GLLT components at their joint and using custom-made upper and lower T-shaped steel connectors. The cross-sections of the two GLLT components are connected to the web of the T-shaped steel connectors via positioning bolts and pins. The top and bottom surfaces of the cross-sections of the two GLLT components are connected to the flanges of the upper and lower T-shaped steel connectors via self-tapping screws and shear rings, ensuring a bidirectional rigid connection between the two GLLT components and effectively transmitting axial force, bending moment, and shear force.

[0040] The rigid connection structure of the cross-shaped joint of the glued laminated timber component of this utility model includes the following steps:

[0041] S1. Drill holes and grooves in the glued laminated timber components; first, cut the two glued laminated timber components 1 and 1' at their intersections. Then, make T-slots 1A at the top center of each cut surface of the two glued laminated timber components 1 and 1', and make inverted T-slots 1B at the bottom center of each cut surface of the two glued laminated timber components 1 and 1'. Next, drill upper and lower bolt holes and upper and lower pin holes on both sides of the cut surfaces of the two glued laminated timber components 1 and 1' according to the calculation requirements. The diameters of the upper and lower bolt holes and upper and lower pin holes are 1-2 mm larger than the diameters of the positioning bolts 6 and pins 5 respectively (see...). Figure 6 );

[0042] S2, Custom T-shaped steel connectors; using four T-shaped steels 2, each twice the length of the T-slot 1A or the inverted T-slot 1B on the glued laminated timber component 1, with the flange width of the T-shaped steel 2 slightly smaller than the thickness of the glued laminated timber component 1; first, cut the middle of two T-shaped steels 2 to form two pairs of T-shaped steel units, then cut a flange 21 with a length equal to half the flange width and a web 22 with a length equal to the web thickness from the cross-section of each pair of T-shaped steel units, then weld the two pairs of T-shaped steel units one-to-one to the middle of the other two T-shaped steels 2 to form an upper T-shaped steel connector 2A and a lower T-shaped steel connector 2B (see... Figure 7a );

[0043] S3, drill holes and weld shear rings on the T-shaped steel connectors; drill upper bolt holes and upper pin holes one-to-one on the web plate 22 of the upper T-shaped steel connector 2A, and drill upper bolt holes and upper pin holes one-to-one on the web plate 22 of the lower T-shaped steel connector 2B; drill self-tapping screw holes 20 on the flange plates 22 of the upper and lower T-shaped steel connectors, the diameter of the upper and lower bolt holes is 1-2 mm larger than the diameter of the positioning bolts, the diameter of the upper and lower pin holes is 1-2 mm larger than the diameter of the pins, and the diameter of the self-tapping screw holes is 1-2 mm larger than the diameter of the self-tapping screws; weld shear rings 3 with teeth 30 (see...) to the back of the flange plates 21 of the upper and lower T-shaped steel connectors. Figure 7b , Figure 7c and Figure 7d );

[0044] S4, Install the T-shaped steel connectors; vertically insert the upper and lower T-shaped steel connectors one by one into the T-slots 1A and inverted T-slots 1B of the two glued laminated timber members, ensuring that the ring teeth 30 of the shear rings 3 welded to the back of the flanges 21 of the upper and lower T-shaped steel connectors are vertically nailed into the top and bottom surfaces of the two glued laminated timber members 1 and 1' (see...). Figure 8a and Figure 8b );

[0045] S5, Install positioning bolts and pins; on the side of the cut-off point of the two glued laminated timber components 1 and 1', first install positioning bolts 6, then install pins 5, so that the web plates 22 of the upper and lower T-shaped steel connectors are fixed one-to-one in the T-slots 1A and inverted T-slots 1B of the two glued laminated timber components 1 and 1' (see... Figure 9a and Figure 9b );

[0046] S6, Install self-tapping screws; Install self-tapping screws 4 on the flanges of the upper and lower T-shaped steel connectors, so that the flanges 21 of the upper and lower T-shaped steel connectors are fixed one-to-one on the top and bottom surfaces of the two glued laminated timber components 1 and 1' (see... Figure 10 );

[0047] S7, Inject adhesive; Inject special wood structure adhesive into the gaps between the upper and lower T-shaped steel connectors and the T-shaped grooves 1A and inverted T-shaped grooves 1B of the two glued laminated timber components 1 and 1', one by one, until the adhesive overflows. Also inject special wood structure adhesive between all the positioning bolts 6 and the upper and lower bolt holes on the two glued laminated timber components 1 and 1', and between all the pins 5 and the upper and lower pin holes on the two glued laminated timber components 1 and 1', until the adhesive overflows.

[0048] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A rigid connection structure for a cross-shaped joint of glued laminated timber components, comprising two glued laminated timber components connected in a cross shape, four T-shaped steel sections, two sets of shear rings, two sets of self-tapping screws, two sets of pins, and sixteen positioning bolts; characterized in that, Two glued laminated timber members are each cut in their entirety at the intersection. A T-slot is made on the top of the cut surface of each of the two glued laminated timber members. Two rows of upper connecting holes are made on the upper part of the two sides of the cut surface of the two glued laminated timber members corresponding to the T-slot. The two upper connecting holes at the beginning and the two upper connecting holes at the end of the two rows are upper bolt holes, and the remaining upper connecting holes are upper pin holes. An inverted T-slot is made on the bottom of the cut surface of each of the two glued laminated timber members. Two rows of lower connecting holes are made on the lower part of the two sides of the cut surface of the two glued laminated timber members corresponding to the inverted T-slot. The two lower connecting holes at the beginning and the two lower connecting holes at the end of the two rows are lower bolt holes, and the remaining lower connecting holes are lower pin holes. The width of the flange of the T-shaped steel is less than the thickness of the glued laminated timber component; four T-shaped steels are each welded in pairs across their entire cross section to form an upper T-shaped steel connector and a lower T-shaped steel connector; a row of self-tapping screw holes is symmetrically opened on both sides of the web of the upper T-shaped steel connector and the lower T-shaped steel connector; the web of the upper T-shaped steel connector has upper bolt holes and upper pin holes that correspond one-to-one with the upper bolt holes and upper pin holes on the two glued laminated timber components, and the web of the lower T-shaped steel connector has lower bolt holes and lower pin holes that correspond one-to-one with the lower bolt holes and lower pin holes on the two glued laminated timber components. One end face of the shear ring is flat, and the other end face of the shear ring is provided with serrations; the two sets of shear rings are welded one-to-one on the back of the wing plate of the upper T-shaped steel connector and the back of the wing plate of the lower T-shaped steel connector. The upper T-shaped steel connector is inserted into the T-slot of the two glued laminated timber members with the flange facing upwards. The serrations of a set of shear rings on the upper T-shaped steel connector are vertically driven into the top surface of the T-slot of the two glued laminated timber members. First, eight positioning bolts are inserted into the upper bolt holes on the two glued laminated timber members and the upper bolt holes on the web of the upper T-shaped steel connector to fix the web of the upper T-shaped steel connector into the T-slot of the two glued laminated timber members. Then, a set of pins are inserted one-to-one into the upper pin holes on the two glued laminated timber members and the upper pin holes on the web of the upper T-shaped steel connector. Finally, a set of self-tapping screws is used to fix the flange of the upper T-shaped steel connector to the top surface of the T-slot of the two glued laminated timber members. The lower T-shaped steel connector is inserted into the inverted T-shaped groove of the two glued laminated timber members with the flange facing downwards. The serrations of a set of shear rings on the lower T-shaped steel connector are vertically driven into the bottom surface of the inverted T-shaped groove of the two glued laminated timber members. First, eight additional positioning bolts are inserted into the lower bolt holes on the two glued laminated timber members and the lower bolt holes on the web of the lower T-shaped steel connector to fix the web of the lower T-shaped steel connector into the inverted T-shaped groove of the two glued laminated timber members. Then, another set of pins is inserted into the lower pin holes on the two glued laminated timber members and the lower pin holes on the web of the lower T-shaped steel connector. Finally, another set of self-tapping screws is used to fix the flange of the lower T-shaped steel connector to the bottom surface of the inverted T-shaped groove of the two glued laminated timber members. An adhesive layer is provided between the upper T-shaped steel connector and the T-slots on the two glued laminated timber members, and between the lower T-shaped steel connector and the inverted T-slots on the two glued laminated timber members; an adhesive layer is also provided between all the positioning bolts and their corresponding upper bolt holes and their corresponding lower bolt holes, and between all the pins and their corresponding upper pin holes and their corresponding lower pin holes.

2. The rigid connection structure of the cross-shaped joint of glued laminated timber components according to claim 1, characterized in that, The number of shear rings in each group is half the number of the two rows of self-tapping screw holes on the upper T-shaped steel connector or the two rows of self-tapping screw holes on the lower T-shaped steel connector; one group of shear rings is coaxial with the two rows of self-tapping screw holes on the upper T-shaped steel connector at intervals, and the other group of shear rings is coaxial with the two rows of self-tapping screw holes on the lower T-shaped steel connector at intervals.

3. The rigid connection structure of the cross-shaped joint of glued laminated timber components according to claim 1, characterized in that, The serrations on the shear ring are serrated rings fixed to the edge of the shear ring.

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