Main and secondary beam connection node structure

Abstract

The utility model belongs to the technical field of building construction, and discloses a primary and secondary beam connecting node structure. The primary and secondary beam connection node structure comprises a first sleeve, a second sleeve and a locking component, and comprises a first side plate and two first locking plates, and the two first locking plates are oppositely arranged at the two ends of the first side plate and are both vertically connected with the first side plate; the second sleeve comprises a second side plate and two second locking plates, and the two second locking plates are oppositely arranged at the two ends of the second side plate; the first locking plate is provided with a first convex part and a first slot, and the second locking plate is provided with a second convex part and a second slot; the two locking components are detachably arranged on the two end plates respectively, the first locking plate and the second locking plate abut against the locking components in the extending direction of the first protruding part, and the locking components abut against the main beam in the vertical direction. The primary and secondary beam connecting node structure can be quickly connected and fixed with the main beam, and can be disassembled without damage, so that the repeated utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a connection node structure between primary and secondary beams. Background Art

[0002] At present, in building structures, the connection between primary and secondary beams generally uses a node structure formed by bolt welding or all-bolt connection methods. For such connection node structures, first, it is necessary to process and manufacture in a workshop with the help of cutting, welding equipment, etc., and then transport it to the construction site for erection by welding or all-bolt connection methods. Therefore, there are situations such as inaccurate pre-reservation of bolt holes and easy deformation during transportation in this type of connection node structure, while the welding process has problems such as complex process and uneven welding quality. At the same time, the welding connection method can only use destructive demolition to disassemble the structure, resulting in a low recycling rate of materials in the later stage. Content of the Utility Model

[0003] The purpose of the utility model is to provide a connection node structure between primary and secondary beams, which can quickly realize the connection and fixation with the primary beam and can be disassembled without damage to improve the reuse rate.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a connection node structure between primary and secondary beams, including:

[0006] A first sleeve, including a first side plate and two first locking plates. The two first locking plates are oppositely arranged at both ends of the first side plate and are both perpendicularly connected to the first side plate. The first side plate is used to abut against the primary beam along a direction perpendicular to the length of the primary beam, and the first side plate is also used to be detachably connected to the secondary beam;

[0007] A second sleeve, including a second side plate and two second locking plates. The two second locking plates are oppositely arranged at both ends of the second side plate and are both perpendicularly connected to the second side plate. The second side plate is used to abut against the primary beam along a direction perpendicular to the length of the primary beam, and the second side plate is also used to be detachably connected to the secondary beam;

[0008] A first convex portion and a first slot are provided on the first locking plate, and a second convex portion and a second slot are provided on the second locking plate. The second convex portion is inserted into the first slot in a matching manner, and the first convex portion is inserted into the second slot in a matching manner, so that the two first locking plates and the two second locking plates are respectively spliced to form two opposite end plates. An installation space for passing through the primary beam is formed by enclosing between the first side plate, the two end plates, and the second side plate;

[0009] Two locking members are respectively detachably arranged on the two end plates. The first locking plate and the second locking plate abut against the locking members along the direction in which the first convex part extends, and the locking members abut against the main beam in the vertical direction.

[0010] Preferably, the locking member is a limit bolt, and a screw hole for threaded cooperation with the limit bolt is formed on the end plate. The screw hole is composed of two threaded half-holes respectively arranged on the first locking plate and the second locking plate, and the two threaded half-holes can respectively abut against the limit bolt along the direction in which the first convex part extends.

[0011] Preferably, a plurality of screw holes are formed.

[0012] Preferably, the locking member includes a first locking bolt and a second locking bolt. The first locking bolt is in threaded cooperation with the first locking plate, and the end of the first locking bolt extending out of the first locking plate abuts against the main beam;

[0013] The second locking bolt is in threaded cooperation with the second locking plate, and the end of the second locking bolt extending out of the second locking plate abuts against the main beam.

[0014] Preferably, a plurality of the first convex parts and the second slots are respectively arranged in one-to-one correspondence.

[0015] Preferably, receiving grooves are arranged on both the first side plate and the second side plate, and the secondary beam can be inserted into the receiving grooves in the vertical direction.

[0016] Preferably, a base plate and two side enclosing plates are arranged on the first side plate. The two side enclosing plates are relatively arranged on the base plate, and the receiving groove is formed by enclosing between the base plate, the two side enclosing plates and the first side plate or the second side plate;

[0017] The end of the secondary beam is provided with a connecting end head with a T-shaped longitudinal section. The connecting end head includes a transverse plate and a longitudinal plate which are vertically connected. The longitudinal plate is connected with the web of the secondary beam. The transverse plate is inserted into the receiving groove. The base plate is used for supporting the connecting end head. A central through groove for avoiding the longitudinal plate is arranged between the two side enclosing plates, and the side enclosing plates abut against the transverse plate.

[0018] Preferably, the main-secondary beam connection node structure further includes a reinforcing plug plate which is inserted into the receiving groove and is used for abutting against the transverse plate.

[0019] Preferably, the reinforcing plug plate has an insertion shaft, a limiting hole is formed in the base plate, the insertion shaft is inserted into the limiting hole, and a nut is screwed on the end of the insertion shaft protruding out of the limiting hole.

[0020] Preferably, the reinforcing plug plate has a gland, the gland is placed on the end of the side wall plate, and the gland is used to abut against the cross plate in the vertical direction.

[0021] The beneficial effects of the utility model are as follows:

[0022] For the primary and secondary beam connection node structure provided by the utility model, since the first locking plate and the second locking plate are respectively provided with a first convex part and a second convex part, wherein the first convex part can be inserted and matched with the second slot on the second locking plate, and the second convex part can be inserted and matched with the first slot on the first locking plate, the first locking plate and the second locking plate can be inserted and joined together to form an end plate. An installation space for the primary beam to pass through is formed by enclosing the first side plate, the two end plates and the second side plate, so that the primary beam can be wrapped and fixed inside; since the locking member is arranged on the end plate, the locking member abuts against the first locking plate and the second locking plate respectively along the extending direction of the first convex part, and both the first side plate and the second side plate abut against the primary beam along the direction perpendicular to the length of the primary beam, the first locking plate and the second locking plate can be limited by the locking member and the primary beam, and the first locking plate and the second locking plate cannot move relative to each other to form a stable and reliable whole, so as to firmly wrap the primary beam in the installation space; at the same time, since the locking member also abuts against the primary beam in the vertical direction, the locking member presses and clamps the primary beam from both sides in the vertical direction, so that the primary beam located in the installation space can be locked in all directions; the first sleeve and the second sleeve lock the primary beam by means of insertion and matching, and limit the primary beam by the detachably arranged locking member. At the same time, since the first side plate and the second side plate are also respectively used for detachably connecting the secondary beam, the primary and secondary beam connection node structure can be quickly assembled on site by prefabricating each part, avoiding the situation of complex construction and non-reusability caused by connection methods such as welding. Description of the Drawings

[0023] Figure 1 is an assembly structure diagram of the primary and secondary beam connection node structure provided by the specific embodiment of the utility model for the primary beam and the secondary beam;

[0024] Figure 2 is a connection structure diagram of the first sleeve and the second sleeve provided by the specific embodiment of the utility model;

[0025] Figure 3 is a structural schematic diagram of the first sleeve and the second sleeve provided by the specific embodiment of the utility model;

[0026] Figure 4It is the top view of the assembly of the first sleeve and the second sleeve provided in the first embodiment of the present utility model;

[0027] Figure 5 It is the top view of the assembly of the first sleeve and the second sleeve provided in the second embodiment of the present utility model;

[0028] Figure 6 It is the top view of the assembly of the first sleeve and the second sleeve provided in the third embodiment of the present utility model;

[0029] Figure 7 It is the structural schematic diagram of the connection end and the reinforcement plug plate provided in the specific implementation manner of the present utility model.

[0030] In the figure:

[0031] 100 - Main beam;

[0032] 200 - Secondary beam;

[0033] 300 - Connection end; 310 - Transverse plate; 320 - Longitudinal plate;

[0034] 1 - First sleeve; 11 - First side plate; 12 - First locking plate; 121 - First convex part; 122 - First slot; 14 - Base plate; 141 - Limit hole; 15 - Side enclosure plate; 151 - Central through groove;

[0035] 2 - Second sleeve; 21 - Second side plate; 22 - Second locking plate; 221 - Second convex part; 222 - Second slot;

[0036] 4 - Locking member;

[0037] 5 - Reinforcement plug plate; 51 - Pressing cover; 52 - Insertion shaft. Specific implementation manner

[0038] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0039] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0041] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right" and "left" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for differentiation in description and have no special meanings.

[0042] Embodiment 1

[0043] As Figures 1 to 3As shown in the figure, the utility model provides a connection node structure for primary and secondary beams. The connection node structure for primary and secondary beams includes a first sleeve 1, a second sleeve 2, and two locking members 4. The first sleeve 1 includes a first side plate 11 and two first locking plates 12. The two first locking plates 12 are oppositely arranged at both ends of the first side plate 11 and are both perpendicularly connected to the first side plate 11. The first side plate 11 is used to abut against the primary beam 100 along the direction perpendicular to the length of the primary beam 100, and the first side plate 11 is also used to be detachably connected to the secondary beam 200. The second sleeve 2 includes a second side plate 21 and two second locking plates 22. The two second locking plates 22 are oppositely arranged at both ends of the second side plate 21 and are both perpendicularly connected to the second side plate 21. The second side plate 21 is used to abut against the primary beam 100 along the direction perpendicular to the length of the primary beam 100, and the second side plate 21 is also used to be detachably connected to the secondary beam 200. A first protrusion 121 and a first slot 122 are arranged on the first locking plate 12, and a second protrusion 221 and a second slot 222 are arranged on the second locking plate 22. The second protrusion 221 is inserted into the first slot 122 in a matching manner, and the first protrusion 121 is inserted into the second slot 222 in a matching manner, so that the two first locking plates 12 and the two second locking plates 22 are respectively spliced to form two opposite end plates. An installation space for passing through the primary beam 100 is formed by enclosing between the first side plate 11, the two end plates, and the second side plate 21. In this embodiment, the connection node structure for primary and secondary beams is used as a node to quickly connect the primary beam 100 and the secondary beam 200 in a building structure. Since the first protrusion 121 and the second protrusion 221 are respectively arranged on the first locking plate 12 and the second locking plate 22, and the first protrusion 121 can be inserted and matched with the second slot 222 on the second locking plate 22, and the second protrusion 221 can be inserted and matched with the first slot 122 on the first locking plate 12, the first locking plate 12 and the second locking plate 22 can be inserted and spliced to form an end plate. An installation space for passing through the primary beam 100 is formed by enclosing between the first side plate 11, the two end plates, and the second side plate 21, so that the primary beam 100 can be wrapped and fixed inside.

[0044] Furthermore, two locking members 4 are respectively detachably arranged on the two end plates. The first locking plate 12 and the second locking plate 22 are abutted against the locking members 4 along the extending direction of the first convex portion 121, and the locking members 4 are abutted against the main beam 100 in the vertical direction. In this embodiment, since the locking members 4 are arranged on the end plates, the locking members 4 are respectively abutted against the first locking plate 12 and the second locking plate 22 along the extending direction of the first convex portion 121, and both the first side plate 11 and the second side plate 21 are abutted against the main beam 100 in the direction perpendicular to the length of the main beam 100. Therefore, the first locking plate 12 and the second locking plate 22 can be limited by the locking members 4 and the main beam 100, and the first locking plate 12 and the second locking plate 22 cannot move relative to each other to form a stable and reliable whole, thereby firmly wrapping the main beam 100 in the installation space. At the same time, since the locking members 4 are also abutted against the main beam 100 in the vertical direction, the locking members 4 press and clamp the main beam 100 from both sides in the vertical direction, so that the main beam 100 located in the installation space can be locked in all directions. The first sleeve 1 and the second sleeve 2 lock the main beam 100 by means of plug-in cooperation, and the main beam 100 is limited by the detachably arranged locking members 4. At the same time, since the first side plate 11 and the second side plate 21 are also respectively used to detachably connect the secondary beam 200, the main-secondary beam connection node structure can be quickly assembled on site by prefabricating each part, avoiding the situation of complex construction and non-reusability caused by connection methods such as welding.

[0045] Furthermore, as Figure 2 and Figure 3As shown, the locking member 4 is a limit bolt, and a screwing hole for thread - fitting with the limit bolt is provided on the end plate. The screwing hole is composed of two threaded half - holes respectively arranged on the first locking plate 12 and the second locking plate 22, and the two threaded half - holes can respectively abut against the limit bolt along the extending direction of the first convex part 121. In this embodiment, the first sleeve 1 and the second sleeve 2 are two members with exactly the same shape and structure. They are symmetrically arranged on the main beam 100 with respect to the main beam 100 and are inserted into each other. Specifically, both the first convex part 121 and the second convex part 221 extend along the length direction of the main beam 100. After the first sleeve 1 and the second sleeve 2 are spliced, they cannot move in the direction horizontally perpendicular to the length of the main beam 100. At the same time, symmetrically - arranged threaded half - holes are provided on the first locking plate 12 and the second locking plate 22, and the dividing straight line of the two threaded half - holes is the boundary line of the first convex part 121 or the second convex part 221. Therefore, both of the two threaded half - holes can abut against the limit bolt along the length direction of the main beam 100, and the end of the limit bolt extending out of the screwing hole abuts tightly against the wing plate of the main beam 100. Therefore, through the frictional force between the limit bolt and the main beam 100, the limit bolt can limit the first sleeve 1 and the second sleeve 2 in the length direction of the main beam 100, avoiding the displacement of the first sleeve 1 or the second sleeve 2 in the length direction of the main beam 100.

[0046] Specifically, as Figure 2 and Figure 3 shown, multiple screwing holes are provided. In this embodiment, multiple limit bolts respectively abut against the main beam 100 in the installation space through multiple screwing holes, thereby improving the connection strength and connection stability with the main beam 100.

[0047] Furthermore, multiple first convex parts 121 and first slots 122 are respectively provided in one - to - one correspondence. In this embodiment, multiple first convex parts 121 and second slots 222 are respectively provided in one - to - one correspondence, and multiple second convex parts 221 and first slots 122 are also respectively provided in one - to - one correspondence, thereby greatly improving the connection stability of the first sleeve 1 and the second sleeve 2, and thus improving the connection strength with the main beam 100.

[0048] Furthermore, accommodation grooves are provided on both the first side plate 11 and the second side plate 21, and the secondary beam 200 can be inserted into the accommodation grooves in the vertical direction. In this embodiment, the end of the secondary beam 200 is detachably connected to the first sleeve 1 or the second sleeve 2 through insertion, which is convenient for disassembly and assembly and is also convenient for recycling.

[0049] Specifically, as Figure 4 and Figure 7It is shown that the first side plate 11 is provided with a base plate 14 and two side plates 15, and the two side plates 15 are arranged opposite to the base plate 14, and accommodating groove is formed between the base plate 14, two side plates 15, and the first side plate 11 or the second side plate 21; the end of the secondary beam 200 is provided with a T-shaped connection end end 300 with a vertical cross-section, and the connection end 300 includes a vertically connected horizontal plate 310 and a longitudinal plate 320. The longitudinal plate 320 is connected to the web of the secondary beam 200, and the horizontal plate 310 is inserted in the accommodation groove. The base plate 14 is used to support the connection end 300, and the two side plates 15 have a central through groove 151 for avoiding the longitudinal plate 320, and the side plate 15 abuts the horizontal plate 310. In this embodiment, the main-secondary beam connection node structure is adapted to the secondary beam with a T-shaped connecting end 300 at the end; when connecting the secondary beam 200, the connecting end 300 at the end of the secondary beam 200 is aligned with the accommodating groove in the vertical direction, and then the connecting end plate 300 is inserted into it, and the longitudinal plate 320 passes through the central through groove 151 and is connected to the web of the secondary beam 200.

[0050] Specifically, Figure 7 As shown, the main and secondary beam connection node structure further includes a reinforcement plug plate 5 which is inserted in the accommodating groove and which is used to abut with the transverse plate 310 . In this embodiment, in order to ensure the stability of the connection end 300 being connected to the first sleeve 1 or the second sleeve 2, a reinforcement plug plate 5 is also inserted in the accommodating groove. One side of the reinforcement plug plate 5 abuts against the first side plate 11 or the second side plate 21 and the other side abuts against the horizontal plate 310 of the connecting end 300, thereby pressing the connecting end 300 onto the side enclosure plate 15 to avoid shaking or displacement in the presence of a gap between the connecting end 300 and the side enclosure plate 15.

[0051] Specifically, Figure 7 As shown, the reinforcing plug plate 5 has an insertion shaft 52, a limiting hole 141 is provided on the base plate 14, the insertion shaft 52 is inserted into the limiting hole 141, and a nut is screwed on the end of the insertion shaft 52 extending out of the limiting hole 141. In this embodiment, the insertion shaft 52 passes through the limiting hole 141 and is screwed with a nut, so that the reinforcing plug plate 5 is fixed in the receiving groove to prevent accidental escape from the receiving groove, thereby ensuring that the horizontal plate 310 of the connecting terminal 300 can always be pressed.

[0052] Specifically, Figure 7 As shown, the reinforcing plug plate 5 has a pressure cap 51, which is mounted on the end of the side panel 15, and is used to abut against the cross plate 310 in the vertical direction. In this embodiment, a pressure cap 51 is provided on the top of the reinforcing plug plate 5, and the pressure cap 51 is covered at the outlet above the accommodating groove and is mounted on the side panel 15, so as to limit the cross plate 310 of the connecting terminal 300 in the vertical direction.

[0053] Embodiment 2

[0054] likeFigure 5 As shown in the figure, this embodiment provides a connection node structure for primary and secondary beams. This connection node structure for primary and secondary beams is basically the same as the connection node structure for primary and secondary beams in Embodiment 1. The main difference lies in that: the locking member 4 includes a first locking bolt and a second locking bolt. The first locking bolt is in threaded cooperation with the first locking plate 12, and the end of the first locking bolt extending out of the first locking plate 12 abuts against the flange of the primary beam 100; the second locking bolt is in threaded cooperation with the second locking plate 22, and the end of the second locking bolt extending out of the second locking plate 22 abuts against the flange of the primary beam 100. Specifically, the first locking bolt is threadedly connected to the first locking plate 12, the second locking bolt is threadedly connected to the second locking plate 12, and the ends of both the first locking bolt and the second locking bolt abut against the flange of the primary beam 100. Through the frictional force between the first locking bolt, the second locking bolt and the primary beam 100, the primary beam 100 and the first sleeve 1 and the second sleeve 2 are ensured to be stable in the horizontal direction.

[0055] Embodiment 3

[0056] As Figure 6 As shown in the figure, this embodiment provides a connection node structure for primary and secondary beams. This connection node structure for primary and secondary beams is basically the same as the connection node structure for primary and secondary beams in Embodiment 1. The main difference lies in that: in addition to the limit bolt, the locking member 4 further includes a first locking bolt and a second locking bolt. The first locking bolt is in threaded cooperation with the first locking plate 12, and the end of the first locking bolt extending out of the first locking plate 12 abuts against the flange of the primary beam 100; the second locking bolt is in threaded cooperation with the second locking plate 22, and the end of the second locking bolt extending out of the second locking plate 22 abuts against the flange of the primary beam 100; the first locking bolt, the second locking bolt and the limit bolt cooperate with each other to jointly lock and position the primary beam 100.

[0057] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The main and secondary beam connection node structure is characterized by: include: A first sleeve (1), comprising a first side plate (11) and two first locking plates (12), wherein the two first locking plates (12) are arranged oppositely at two ends of the first side plate (11) and are vertically connected to the first side plate (11), the first side plate (11) is used to abut against the main beam (100) in a direction perpendicular to the length of the main beam (100), and the first side plate (11) is also used to be detachably connected to the secondary beam (200); A second sleeve (2), comprising a second side plate (21) and two second locking plates (22), wherein the two second locking plates (22) are arranged oppositely at two ends of the second side plate (21) and are vertically connected to the second side plate (21), the second side plate (21) is used to abut against the main beam (100) in a direction perpendicular to the length of the main beam (100), and the second side plate (21) is also used to be detachably connected to the secondary beam (200); The first locking plate (12) is provided with a first protrusion (121) and a first slot (122), and the second locking plate (22) is provided with a second protrusion (221) and a second slot (222), the second protrusion (221) and the first slot (122) are inserted into the first slot (122) in a matching manner, and the first protrusion (121) and the second slot (222) are inserted into the second slot (222) in a matching manner, so that the two first locking plates (12) and the two second locking plates (22) are respectively spliced ​​to form two opposite end plates, and an installation space for passing the main beam (100) is formed between the first side plate (11), the two end plates and the second side plate (21); Two locking members (4) are detachably arranged on the two end plates, respectively; the first locking plate (12) and the second locking plate (22) abut against the locking members (4) along the direction in which the first protrusion (121) extends; and the locking members (4) abut against the main beam (100) along the vertical direction.

2. The primary and secondary beam connection node structure according to claim 1, characterized in that: The locking member (4) is a limiting bolt, and a screw hole is provided on the end plate to cooperate with the thread of the limiting bolt. The screw hole is composed of two threaded half holes respectively arranged on the first locking plate (12) and the second locking plate (22). The two threaded half holes can respectively abut against the limiting bolt along the direction in which the first protrusion (121) extends.

3. The primary and secondary beam connection node structure according to claim 2, characterized in that: A plurality of screw connection holes are provided.

4. The primary and secondary beam connection node structure according to claim 1, characterized in that: The locking member (4) comprises a first locking bolt and a second locking bolt, the first locking bolt being threadably matched with the first locking plate (12), and the end of the first locking bolt extending out of the first locking plate (12) being abutted against the main beam (100); The second locking bolt is threadably matched with the second locking plate (22), and the end of the second locking bolt extending out of the second locking plate (22) abuts against the main beam (100).

5. The primary and secondary beam connection node structure according to claim 1, characterized in that: A plurality of the first protrusions (121) and the second slots (222) are respectively provided in a one-to-one correspondence.

6. The primary and secondary beam connection node structure according to claim 1, characterized in that: The first side plate (11) and the second side plate (21) are both provided with accommodation grooves, and the secondary beam (200) can be inserted into the accommodation grooves in a vertical direction.

7. The primary and secondary beam connection node structure according to claim 6, characterized in that: The first side plate (11) is provided with a base plate (14) and two side panels (15), the two side panels (15) are arranged on the base plate (14) opposite to each other, and the base plate (14), the two side panels (15) and the first side plate (11) or the second side plate (21) are surrounded to form the receiving groove; The end of the secondary beam (200) is provided with a connecting end head (300) with a T-shaped longitudinal section, and the connecting end head (300) includes a transverse plate (310) and a longitudinal plate (320) connected vertically, and the longitudinal plate (320) is connected to the web of the secondary beam (200), and the transverse plate (310) is inserted into the accommodating groove, and the base plate (14) is used to support the connecting end head (300), and a central through groove (151) is provided between the two side panels (15) for avoiding the longitudinal plate (320), and the side panels (15) are in abutment with the transverse plate (310).

8. The primary and secondary beam connection node structure according to claim 7, characterized in that: The primary and secondary beam connection node structure further comprises a reinforcing plug plate (5), wherein the reinforcing plug plate (5) is inserted into the accommodating groove, and the reinforcing plug plate (5) is used to abut against the transverse plate (310).

9. The primary and secondary beam connection node structure according to claim 8, characterized in that: The reinforcing plug plate (5) has an insertion shaft (52), a limiting hole (141) is provided on the base plate (14), the insertion shaft (52) is inserted into the limiting hole (141), and a nut is screwed onto the end of the insertion shaft (52) extending out of the limiting hole (141).

10. The primary and secondary beam connection node structure according to claim 9, characterized in that: The reinforcing plug plate (5) has a pressure cover (51), and the pressure cover (51) is placed on the end of the side panel (15). The pressure cover (51) is used to abut against the cross plate (310) in the vertical direction.

Images