Assembly type wood frame beam column connecting joint

Abstract

The invention relates to the technical field of buildings, and discloses a fabricated wood frame beam-column connecting joint which comprises a wood column, a wood beam, a column end connecting piece, a beam end connecting piece and a self-tapping screw. A column body mounting groove is formed in the position, at the connecting joint, of the wood column, and column bolt holes are formed in the two ends of the interior of the column body mounting groove; beam end mounting grooves are formed in the positions, at the connecting joints, of the wood beams, beam bolt holes are formed in the beam end mounting grooves, hidden grooves are formed in the sides, away from the column body mounting grooves, of the wood columns, base plates are arranged in the hidden grooves of the wood columns, and column high-strength bolts are arranged in the column bolt holes. According to the assembly type wooden frame beam-column connecting joint, the column end connecting piece and the beam end connecting piece are fixedly installed on the wooden column and the wooden beam in advance correspondingly, and then the wooden column and the wooden beam can be directly assembled after being transported to an installation site; column high-strength bolts sequentially pass through the base plates, the column bolt holes, the first bolt holes and the second bolt holes to fasten the whole joint connecting piece to the wooden column, and operation is easy.

Description

Technical Field

[0001] The present invention relates to the field of building technology, in particular to an assembled wood frame beam-column connection node. Background Art

[0002] "Green, low-carbon, energy-saving and environmentally friendly" is a concept actively advocated in the field of modern architecture. Wood structures are becoming more and more popular because of their advantages such as green and renewable, energy-saving and environmentally friendly, light weight, and easy processing and assembly. Wood frame structure is also a common form of building structure. Like other structural forms, beam-column nodes are key parts that affect the overall structural performance of the wood frame.

[0003] At present, the main connection methods used in the beam-column joints of wooden structures are mortise and tenon connection, bolt connection, tooth plate connection, nail connection and embedded rebar connection. However, the above-mentioned node connection methods have disadvantages such as low bearing capacity and stiffness, difficulty in on-site construction, and poor durability of exposed components, which to a certain extent restrict the development of modern prefabricated wooden frame structures.

[0004] With the advancement of industrialization and the continuous improvement of wood and metal processing capabilities, industrialized assembly will become a key trend in the future development of wood-frame buildings. Therefore, how to overcome the shortcomings of existing beam-column joint connection methods and provide a reliable and convenient beam-column joint connection method that better adapts to the development of assembled wood-frame buildings has become a pressing issue. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a prefabricated wooden frame beam-column connection node, which solves the problems mentioned in the above background.

[0006] The present invention provides the following technical solution: an assembled wood frame beam-column connection node, comprising a wood column, a wood beam, a column end connector, a beam end connector, and self-tapping screws, wherein the wood column is provided with a column body mounting groove at the connection node position, and column bolt holes are provided at both ends of the column body mounting groove; the wood beam is provided with a beam end mounting groove at the connection node position, and beam bolt holes are provided in the beam end mounting groove; the column end connector is fixedly installed in the column body mounting groove by means of self-tapping screws, and the beam end connector is fixedly installed in the beam end mounting groove by means of high-strength beam bolts and self-tapping screws; A hidden groove is provided on the side of the wooden column away from the column body installation groove, a pad is provided in the hidden groove of the wooden column, a column high-strength bolt is provided inside the column bolt hole, one end of the column high-strength bolt passes through the pad and is fastened by a matching nut, and the end of the column high-strength bolt away from the pad passes through the column end connector and the beam end connector and is fastened by a matching nut.

[0007] Preferably, both ends of the column end connector are provided with a No. 1 bolt hole, the middle part of the column end connector is provided with a No. 1 screw countersunk hole, both ends of the beam end connector are provided with a No. 2 bolt hole, the middle part of the beam end connector is provided with a No. 2 screw countersunk hole.

[0008] Preferably, rib grooves are provided in the middle of both ends of the column end connector, and stiffening ribs are provided in the slots at the upper ends of the beam end connector.

[0009] Preferably, positioning plates are provided at both ends of the inner side of the beam end connector, triangular stiffening plates are provided on the positioning plates of the beam end connector, and beam end connector through holes are provided on the positioning plates of the beam end connector and between the triangular stiffening plates.

[0010] Preferably, a high-strength beam bolt is provided inside the beam bolt hole, and both ends of the high-strength beam bolt pass through the beam end connecting piece through-holes on the upper and lower positioning clamps of the beam end connecting piece and are fastened by matching nuts.

[0011] Preferably, the beam high-strength bolts and the column high-strength bolts are both stud bolts with threads at both ends, and the column high-strength bolts and the beam high-strength bolts are used in conjunction with matching nuts.

[0012] Preferably, a protective piece is provided on the outer side of the connection end between the wooden beam and the wooden column, and the protective piece includes an L-shaped upper sealing adhesive sheet and a lower sealing adhesive sheet, and both the L-shaped upper sealing adhesive sheet and the lower sealing adhesive sheet are provided with an adhesive layer.

[0013] Preferably, the L-shaped upper sealing adhesive sheet is bonded to the upper end of the wooden beam, and the lower sealing adhesive sheet is bonded to the lower end of the wooden beam.

[0014] Preferably, a column rubber plug is provided on the side wall of the L-shaped upper sealing adhesive sheet close to the wooden column, and a beam rubber plug is provided on the upper end surface of the lower sealing adhesive sheet.

[0015] Preferably, the column end connectors and the beam end connectors are both steel connectors, the column end connectors are pre-fixed on the wooden columns by self-tapping screws, and the beam end connectors are pre-fixed on the wooden beams by high-strength beam bolts and self-tapping screws.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The assembled wooden frame beam-column connection node is simple to operate. The wooden columns and wooden beams are pre-installed with column end connectors and beam end connectors. The column high-strength bolts are sequentially passed through the pad, column bolt hole, No. 1 bolt hole and No. 2 bolt hole to fasten the entire node connector to the wooden column. When the wooden beam is subjected to vertical load, the upper part of the wooden beam is under tension, and the column high-strength bolts and connectors can effectively transfer the tension to the wooden column. Since the column end connectors and the beam end connectors are tightly fitted, when the lower part of the wooden beam is under pressure, the connectors, the wooden column and the wooden beam cross-section bear the pressure together. The shear force at the beam end can also be transferred to the wooden column through the connectors and self-tapping screws. At the same time, in order to prevent the column high-strength bolts from causing local pressure on the wood, a pad is set on the back of the wooden column.

[0017] 2. The prefabricated wooden frame beam-column connection node, when an prefabricated wooden frame beam-column connection node is a mid-node, in order to facilitate assembly, the vertical column high-strength bolts can be staggered up and down. The two wooden beams in the same horizontal direction should be assembled at one end first. At this time, no pad is required. The column high-strength bolts are passed through the column bolt hole, No. 1 bolt hole and No. 2 bolt hole in turn. The end of the column high-strength bolt should enter the column bolt hole. After the remaining end of the wooden beam is assembled, pass it back through the No. 1 bolt hole and No. 2 bolt hole and tighten the nuts at both ends to complete the assembly.

[0018] 3. The assembled wooden frame beam-column connection node is provided with a protective part. After the connection node between the wooden column and the wooden beam is fixed, the L-shaped upper sealing adhesive sheet and the lower sealing adhesive sheet are respectively adhered to the upper and lower ends of the wooden beam connection end, and the column rubber plug is inserted into the column body installation groove, and the beam rubber plug is inserted into the beam end installation groove, which effectively ensures that the L-shaped upper sealing adhesive sheet and the lower sealing adhesive sheet are fixed in position and the installation groove is blocked, thereby achieving the purpose of hiding the connection node, greatly improving the service life of the node connection parts, and the protective parts are easy to install and disassemble, which is convenient for further disassembly, maintenance or replacement of the beam column and its connection structure in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded view of a beam-column connection node of an assembled wooden frame according to the present invention; Figure 2 This is a three-dimensional diagram of a prefabricated wooden frame beam-column connection node during vertical assembly of the present invention; Figure 3 This is a schematic structural diagram of a prefabricated wooden frame beam-column connection node without a protective member installed in the present invention; Figure 4 This is an overall three-dimensional diagram of a prefabricated wooden frame beam-column connection node of the present invention; Figure 5 This is a schematic structural diagram of the connecting end of a wooden beam according to the present invention; Figure 6 It is a structural schematic diagram of the column end connecting piece of the present invention; Figure 7 It is a structural schematic diagram of the beam end connector of the present invention; Figure 8 It is a structural schematic diagram of the protective element of the present invention; Figure 9This is one of the schematic diagrams of the mid-node assembly of an assembled wooden frame beam-column connection node of the present invention.

[0020] Figure 10 This is the second schematic diagram of the middle node assembly of the assembled wooden frame beam-column connection node of the present invention Figure 11 This is a three-dimensional diagram of the middle node of the assembled wooden frame beam-column connection node after assembly.

[0021] In the figure: 1. Wooden column; 101. Column bolt hole; 2. Wooden beam; 201. Beam bolt hole; 3. Column end connector; 301. No. 1 bolt hole; 302. No. 1 screw countersunk hole; 303. Rib groove; 4. Beam end connector; 401. No. 2 bolt hole; 402. No. 2 screw countersunk hole; 403. Stiffening rib; 404. Beam end connector through-hole; 5. Column body mounting groove; 6. Beam end mounting groove; 7. Column high-strength bolt; 8. Pad; 9. Beam high-strength bolt; 10. Self-tapping screw; 11. Protective part; 1101. L-shaped upper sealing adhesive sheet; 1102. Lower sealing adhesive sheet; 1103. Column rubber plug; 1104. Beam rubber plug. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] See also Figure 1-8 A prefabricated wooden frame beam-column connection node includes a wooden column 1, a wooden beam 2, a column end connector 3, a beam end connector 4 and a self-tapping screw 10. The wooden column 1 is provided with a column body mounting groove 5 at the connection node position, and column bolt holes 101 are provided at both ends of the column body mounting groove 5. The wooden beam 2 is provided with a beam end mounting groove 6 at the connection node position, and beam bolt holes 201 are provided in the beam end mounting groove 6. The column end connector 3 is fixedly installed in the column body mounting groove 5 by the self-tapping screw 10, and the beam end connector 4 is fixedly installed in the beam end mounting groove 6 by the self-tapping screw 10. A hidden groove is provided on the side of the wooden column 1 away from the column body mounting groove 5, a pad 8 is provided in the hidden groove of the wooden column 1, a column high-strength bolt 7 is provided inside the column bolt hole 101, one end of the column high-strength bolt 7 passes through the pad 8 and is fastened by a matching nut, and the end of the column high-strength bolt 7 away from the pad 8 passes through the column end connector 3 and the beam end connector 4 and is fastened by a matching nut.

[0024] Among them; both ends of the column end connector 3 are provided with No. 1 bolt holes 301, the middle part of the column end connector 3 is provided with No. 1 screw countersunk hole 302, both ends of the beam end connector 4 are provided with No. 2 bolt holes 401, and the middle part of the beam end connector 4 is provided with No. 2 screw countersunk hole 402. By setting the No. 1 bolt hole 301 and the No. 2 bolt hole 401, it is convenient to pass the end of the column high-strength bolt 7 through and tighten the matching nut, so that the column end connector 3 and the beam end connector 4 are fastened together; by setting the No. 1 screw countersunk hole 302 and the No. 2 screw countersunk hole 402, it is convenient for the self-tapping screw 10 to pass through and fix the column end connector 3 on the wooden column 1, and fix the beam end connector 4 on the wooden beam 2.

[0025] Among them, there are rib grooves 303 in the middle of both ends of the column end connecting piece 3, and stiffening ribs 403 are set in the upper end grooves of the beam end connecting piece 4. When the wooden beam 2 with the beam end connecting piece 4 installed is connected to the column end connecting piece 3, the stiffening ribs 403 of the beam end connecting piece 4 are downwardly inserted into the upper end rib grooves 303 of the column end connecting piece 3 through the column body installation grooves 5. At this time, the lower end of the beam end connecting piece 4 is synchronously inserted into the lower end groove of the column end connecting piece 3, and the triangular stiffening plate located in the middle of the lower end of the beam end connecting piece 4 is inserted into the lower end rib groove 303 of the column end connecting piece 3. The column end connecting piece 3 can effectively play a limiting support role for the end of the wooden beam 2 with the beam end connecting piece 4 installed, ensuring that the column end connecting piece 3 is effectively aligned with the beam end connecting piece 4, so that the column high-strength bolt 7 can be passed through the pad 8, the column bolt hole 101, the No. 1 bolt hole 301 and the No. 2 bolt hole 401 in sequence in the next step to fasten the entire node connecting piece to the wooden column 1.

[0026] Among them, positioning clamps are provided at both ends of the inner side of the beam end connector 4, and triangular stiffening plates are provided on the positioning clamps of the beam end connector 4. Beam end connector through-holes 404 are provided on the positioning clamps of the beam end connector 4 and between the triangular stiffening plates. A beam high-strength bolt 9 is provided inside the beam bolt hole 201. Both ends of the beam high-strength bolt 9 pass through the beam end connector through-holes 404 on the upper and lower positioning clamps of the beam end connector 4 and are fastened by matching nuts. The beam high-strength bolt 9 and the column high-strength bolt 7 are both double-headed bolts with threads at both ends. The column high-strength bolt 7 and the beam high-strength bolt 9 are used in conjunction with matching nuts. By opening the beam bolt hole 201, it is convenient for the beam high-strength bolt 9 to pass through and tighten the matching nuts to further ensure the stability of the beam end connector 4.

[0027] Among them; A protective member 11 is provided on the outer side of the connection end of the wooden beam 2 and the wooden column 1, and the protective member 11 includes an L-shaped upper sealing adhesive sheet 1101 and a lower sealing adhesive sheet 1102. Both the L-shaped upper sealing adhesive sheet 1101 and the lower sealing adhesive sheet 1102 are provided with an adhesive layer. The L-shaped upper sealing adhesive sheet 1101 is bonded to the upper end of the wooden beam 2, and the lower sealing adhesive sheet 1102 is bonded to the lower end of the wooden beam 2. A column rubber plug 1103 is provided on the side wall of the L-shaped upper sealing adhesive sheet 1101 close to the wooden column 1, and a beam rubber plug is provided on the upper surface of the lower sealing adhesive sheet 1102. Plug 1104. After the connection node between the wooden column 1 and the wooden beam 2 is fixed, the L-shaped upper sealing adhesive sheet 1101 and the lower sealing adhesive sheet 1102 are respectively bonded to the upper and lower ends of the connection end of the wooden beam 2, and the column rubber plug 1103 is inserted into the column body installation groove 5, and the beam rubber plug 1104 is inserted into the beam end installation groove 6, which effectively ensures that the L-shaped upper sealing adhesive sheet 1101 and the lower sealing adhesive sheet 1102 are fixed in position and the installation groove is sealed. The protective part 11 is easy to install and disassemble, which is convenient for further disassembly, maintenance or replacement of the beam column and its connection structure in the later stage.

[0028] Among them; the column end connector 3 and the beam end connector 4 are both steel connectors, the column end connector 3 is pre-fixed on the wooden column 1 by self-tapping screws 10, and the beam end connector 4 is pre-fixed on the wooden beam 2 by beam high-strength bolts 9 and self-tapping screws 10. By pre-installing and fixing the column end connector 3 and the beam end connector 4 on the wooden column 1 and the wooden beam 2 respectively, the wooden column 1 and the wooden beam 2 can be directly assembled after being transported to the installation site, and the column high-strength bolt 7 can be passed through the pad 8, the column bolt hole 101, the No. 1 bolt hole 301 and the No. 2 bolt hole 401 in sequence to fasten the entire node connector to the wooden column 1.

[0029] See also Figure 9-11 When the connection node between the beam and column of an assembled wooden frame is a mid-node, in order to facilitate assembly, the vertical column high-strength bolts 7 can be staggered up and down. The two wooden beams 2 in the same horizontal direction should be assembled at one end first. At this time, the pad 8 is not required. The column high-strength bolt 7 is passed through the column bolt hole 101, the No. 1 bolt hole 301 and the No. 2 bolt hole 401 in sequence. The end of the column high-strength bolt 7 should enter the column bolt hole 101. After the remaining end of the wooden beam 2 is assembled, it is passed back through the No. 1 bolt hole 301 and the No. 2 bolt hole 401 and nuts are tightened at both ends to complete the assembly.

[0030] Working principle: by setting the No. 1 screw countersunk hole 302 and the No. 2 screw countersunk hole 402, it is convenient for the self-tapping screw 10 to pass through and fix the column end connector 3 on the wooden column 1, and fix the beam end connector 4 on the wooden beam 2. By pre-installing the column end connector 3 and the beam end connector 4 on the wooden column 1 and the wooden beam 2 respectively, the wooden column 1 and the wooden beam 2 can be directly assembled after being transported to the installation site. The column high-strength bolt 7 is sequentially passed through the pad 8, the column bolt hole 101, the No. 1 bolt hole 301 and the No. 2 bolt hole 401. The entire node connector can be fastened to the wooden column 1; when the wooden beam 2 is subjected to vertical load, the upper part of the wooden beam 2 is pulled, and the column high-strength bolts 7 and the connector can effectively transfer the tension to the wooden column 1. Since the column end connector 3 and the beam end connector 4 fit tightly, when the lower part of the wooden beam 2 is under pressure, the connector and the wooden column 1 and the cross-section of the wooden beam 2 bear the pressure together, and the shear force at the beam end can also be transmitted to the wooden column 1 through the connector and the self-tapping screws 10. At the same time, in order to prevent the column high-strength bolts 7 from causing local pressure on the wood of the wooden column 1, a pad 8 is set on the back of the wooden column 1.

[0031] Furthermore, after the connection node between the wooden column 1 and the wooden beam 2 is fixed, the upper L-shaped sealing adhesive sheet 1101 and the lower sealing adhesive sheet 1102 are respectively bonded to the upper and lower ends of the connection end of the wooden beam 2, and the column rubber plug 1103 is inserted into the column body installation groove 5, and the beam rubber plug 1104 is inserted into the beam end installation groove 6, which effectively ensures that the upper L-shaped sealing adhesive sheet 1101 and the lower sealing adhesive sheet 1102 are fixed in position and the installation groove is blocked. The protective member 11 is easy to install and disassemble, which is convenient for further disassembly, maintenance or replacement of the beam column and its connection structure in the future. When the connection node between the beam and column of an assembled wooden frame is a mid-node, the vertical column high-strength bolts 7 can be staggered up and down for the convenience of assembly. The two wooden beams 2 in the same horizontal direction should be assembled at one end first. At this time, the pad 8 is not required. The column high-strength bolt 7 is passed through the column bolt hole 101, the No. 1 bolt hole 301 and the No. 2 bolt hole 401 in sequence. The end of the column high-strength bolt 7 should enter the column bolt hole 101. After the remaining end of the wooden beam 2 is assembled, it is passed back through the No. 1 bolt hole 301 and the No. 2 bolt hole 401 and nuts are tightened at both ends to complete the assembly.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated wood frame beam-column connection node, characterized in that: The invention comprises a wooden column (1), a wooden beam (2), a column end connector (3), a beam end connector (4) and a self-tapping screw (10), wherein the wooden column (1) is provided with a column body mounting groove (5) at a connection node position, and column bolt holes (101) are provided at both ends of the column body mounting groove (5); the wooden beam (2) is provided with a beam end mounting groove (6) at a connection node position, and beam bolt holes (201) are provided in the beam end mounting groove (6); the column end connector (3) is fixedly installed in the column body mounting groove (5) by means of a self-tapping screw (10), and the beam end connector (4) is fixedly installed in the beam end mounting groove (6) by means of a self-tapping screw (10); A hidden groove is provided on the side of the wooden column (1) away from the column body installation groove (5), a pad (8) is provided in the hidden groove of the wooden column (1), a column high-strength bolt (7) is provided inside the column bolt hole (101), one end of the column high-strength bolt (7) passes through the pad (8) and is fastened by a matching nut, and the end of the column high-strength bolt (7) away from the pad (8) passes through the column end connector (3) and the beam end connector (4) and is fastened by a matching nut.

2. The assembled wood frame beam-column connection node according to claim 1, characterized in that: Both ends of the column end connector (3) are provided with a No. 1 bolt hole (301), and the middle portion of the column end connector (3) is provided with a No. 1 screw countersunk hole (302). Both ends of the beam end connector (4) are provided with a No. 2 bolt hole (401), and the middle portion of the beam end connector (4) is provided with a No. 2 screw countersunk hole (402).

3. The assembled wood frame beam-column connection node according to claim 2, characterized in that: Rib grooves (303) are provided in the middle of both ends of the column end connecting piece (3), and stiffening ribs (403) are provided in the slots at the upper ends of the beam end connecting piece (4).

4. The assembled wood frame beam-column connection node according to claim 3, characterized in that: Positioning clamps are provided at both ends of the inner side of the beam end connector (4), triangular stiffening plates are provided on the positioning clamps of the beam end connector (4), and beam end connector through holes (404) are provided on the positioning clamps of the beam end connector (4) and between the triangular stiffening plates.

5. The assembled wood frame beam-column connection node according to claim 4, characterized in that: A high-strength beam bolt (9) is provided inside the beam bolt hole (201), and both ends of the high-strength beam bolt (9) respectively pass through the beam end connection piece through-holes (404) on the upper and lower positioning clamping plates of the beam end connection piece (4) and are fastened by matching nuts.

6. The assembled wood frame beam-column connection node according to claim 5, characterized in that: The beam high-strength bolts (9) and the column high-strength bolts (7) are both double-headed bolts with threads at both ends, and the column high-strength bolts (7) and the beam high-strength bolts (9) are used in conjunction with matching nuts.

7. The assembled wood frame beam-column connection node according to claim 1, characterized in that: A protective member (11) is provided on the outer side of the connection end between the wooden beam (2) and the wooden column (1), and the protective member (11) comprises an L-shaped upper sealing adhesive sheet (1101) and a lower sealing adhesive sheet (1102), and both the L-shaped upper sealing adhesive sheet (1101) and the lower sealing adhesive sheet (1102) are provided with an adhesive layer.

8. The assembled wood frame beam-column connection node according to claim 7, characterized in that: The L-shaped upper sealing adhesive sheet (1101) is bonded to the upper end of the wooden beam (2), and the lower sealing adhesive sheet (1102) is bonded to the lower end of the wooden beam (2).

9. The assembled wood frame beam-column connection node according to claim 8, characterized in that: A column rubber plug (1103) is provided on the side wall of the L-shaped upper sealing adhesive sheet (1101) close to the wooden column (1), and a beam rubber plug (1104) is provided on the upper end surface of the lower sealing adhesive sheet (1102).

10. The assembled wood frame beam-column connection node according to claim 1, characterized in that: The column end connector (3) and the beam end connector (4) are both steel connectors. The column end connector (3) is pre-fixed to the wooden column (1) by means of self-tapping screws (10), and the beam end connector (4) is pre-fixed to the wooden beam (2) by means of high-strength beam bolts (9) and self-tapping screws (10).

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