CN112359982A - Tenon-and-mortise square steel-wood assembly node and installation method - Google Patents

Tenon-and-mortise square steel-wood assembly node and installation method Download PDF

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Publication number
CN112359982A
CN112359982A CN202011116449.6A CN202011116449A CN112359982A CN 112359982 A CN112359982 A CN 112359982A CN 202011116449 A CN202011116449 A CN 202011116449A CN 112359982 A CN112359982 A CN 112359982A
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China
Prior art keywords
plate
wood
central
insert
mortise
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CN202011116449.6A
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CN112359982B (en
Inventor
牟犇
周万求
冯鹏
苗吉军
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN202011116449.6A priority Critical patent/CN112359982B/en
Priority to PCT/CN2021/073508 priority patent/WO2022083019A1/en
Publication of CN112359982A publication Critical patent/CN112359982A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/185Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/48Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/48Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E04B1/486Shear dowels for wood

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention relates to the field of building structures, and discloses a square steel-wood assembled node with tenon-and-mortise work, which comprises an assembled column, an assembled beam and a node tenon-and-mortise work assembly; the combined column comprises steel inserts and filled wood blocks, and the filled wood blocks are inserted into the square steel inserts; the node mortise and tenon joint assembly comprises a column connecting piece and a beam connecting piece; the two ends of the column connecting piece are column connecting ends which are respectively connected with the combined column; the beam connecting piece comprises a beam connecting piece I and a beam connecting piece II; one end of the beam connecting piece I is a tenon-and-mortise connecting end, one end of the beam connecting piece II is a mortise-and-mortise connecting end, the tenon-and-mortise connecting end is oppositely inserted into the window of the column connecting piece, and the mortise-and-mortise connecting end and the tenon-and-mortise connecting end are connected together through a tenon-and-mortise; the combination beam is connected with the beam connecting piece. According to the square steel-wood composite node, the main material is wood, steel and FRP fiber materials are scientifically combined, the advantages of various materials are exerted, and the strength can reach a higher level while the weight is light.

Description

Tenon-and-mortise square steel-wood assembly node and installation method
Technical Field
The invention relates to the field of building structures, in particular to a steel-wood assembly node and an installation method of the node.
Background
With the increasing importance of resources and energy resources in various countries around the world, the green, environment-friendly and energy-saving requirements become new requirements for development of various industries, wood structure buildings are popular in europe and america, especially in north america, have different appearances and various styles, are also made of variegated exterior materials, have bricks, plates, plaster and the like, and are all wood structures in the interior although the wood structure is changed into a great number.
The wood structure building is one of the important directions for the development of the building industry in China at present. The wood structure building has many advantages, such as high durability, short construction period, strong shock resistance, flexible design and arrangement, good heat preservation and energy conservation, and the like, but with the increase of practical application and requirements, some problems are exposed, the timber of the finished material is in short supply due to the increase of construction amount, the strength of the timber is not high enough, the wood structure building is not suitable for building high-rise or super high-rise buildings, and the wood beam is not suitable for some design requirements due to the problem of overlarge deflection.
Disclosure of Invention
The invention has the technical effects of solving the problems of the existing wood structure building and providing the square steel-wood assembly node.
In order to achieve the above object, the present invention adopts the following technical solutions: the combined column and the combined beam are connected through the node mortise and tenon components;
the combined column comprises a steel plug-in piece and a filler wood block, the steel plug-in piece comprises a central connecting column, connecting plates and enclosing plates, the central connecting column is a square column, the enclosing plates are vertically fixed on the end parts of the connecting plates, which vertically extend out of four side surfaces of the central connecting column, the left end and the right end of each enclosing plate are folded inwards, two adjacent enclosing plates and two adjacent connecting plates enclose a square space with one corner opened, and four square spaces are formed in the steel plug-in piece; a filling wood block is inserted into each square space, and the section of the filling wood block is matched with that of the square space;
the node mortise and tenon component comprises a column connecting piece, a beam connecting piece and a beam connecting end; the four side surfaces of the column connecting piece are respectively provided with a window for inserting the beam connecting piece, the upper end and the lower end of the column connecting piece are column connecting ends, and the column connecting ends are connected with the combined column;
the beam connecting piece comprises two beam connecting pieces I and two beam connecting pieces II which are connected together in a mortise-tenon manner, the other ends of the beam connecting pieces I and the beam connecting pieces II are beam connecting ends, and the beam connecting ends are connected with the combined beam; the combined beam is an I-beam and comprises an upper layer wood insert, a middle steel plate piece and a lower layer wood insert, the upper layer wood insert and the lower layer wood insert are spliced through the middle steel plate piece, and the upper layer wood insert and the lower layer wood insert are fixedly connected with the connecting end respectively.
Preferably, I one end of beam connecting piece is the mortise joint end, and one end is the beam connection end, and II one ends of beam connecting piece are the mortise joint end, and one end is the beam connection end, and the mortise joint end subtend of two beam connecting pieces I inserts the window of post connecting piece respectively, and the mortise joint end subtend of two beam connecting pieces II inserts the window of post connecting piece respectively, and the mortise joint end of two beam connecting pieces I and II mortise joint ends of two beam connecting pieces are passed through the mortise-tenon joint and are linked together.
Preferably, the middle of the beam connecting piece I is provided with an inserting plate and an upper inserting strip and a lower inserting strip, the inserting plate is positioned on one side of the inserting strip, the upper surface of the inserting plate and the lower surface of the upper inserting strip are positioned on the same plane, the lower surface of the inserting plate and the upper surface of the lower inserting strip are positioned on the same plane, the end part of the inserting plate is in a step shape, and two ends of the inner side surface of the inserting strip are both provided with a groove I;
an inserting block is arranged on one side of the beam connecting piece II, grooves II are respectively arranged on the left side surface and the right side surface of the inserting block in a staggered mode, and the grooves II are arranged corresponding to the end portions of the inserting plates;
the two beam connecting pieces II are oppositely inserted into the windows, and the two inserting blocks are overlapped; in two I subtend insertion windows of roof beam connecting piece, the tip of two picture pegs inserts recess II respectively, and two cuttings insert the upper and lower both sides of subtend picture peg respectively, and two are gone up the recess I on cutting, two lower cuttings and all dock and form a square groove, and the square inslot has been inserted the wood bolt.
Preferably, the beam connecting end include central connecting block and two side connecting blocks, two side connecting block symmetries set up in central connecting block both sides, central connecting block includes central picture peg I and two side picture pegs I, two I symmetries of side picture peg set up in I both sides of central picture peg, form slot II between central picture peg I and the picture peg I, central picture peg I is higher than side picture peg I.
Preferably, the section of the upper-layer wood plug-in unit is pi-shaped, the upper-layer wood plug-in unit comprises an upper wing plate and two parallel side plug-in boards II, and a slot I is formed between the two parallel side plug-in boards II;
the middle steel plate piece comprises two web plate assemblies which are symmetrically arranged, each web plate assembly comprises a side web plate and an L-shaped folded plate, the L-shaped folded plates are vertically fixed at the central positions of the side web plates, and a slot IV is formed between each L-shaped folded plate and each side web plate;
the lower-layer wood plug-in unit comprises a lower wing plate and a central plug-in board assembly, the central plug-in board assembly comprises a central plug-in board II and side plug-in boards III, the side plug-in boards III are symmetrically arranged on two sides of the central plug-in board II, a plug-in slot III is formed between the side plug-in boards III and the central plug-in board II, and the central plug-in board II is higher than the side plug-in boards III; the length of one end of the lower wing plate is greater than that of the central flashboard component;
the convex one end of lower pterygoid lamina insert roof beam link end bottom surface and with roof beam link end fixed connection, the center picture peg subassembly and the center connecting block of lower floor's wood plug-in components align, middle steel sheet spare is installed in the center picture peg subassembly and the center connecting block top of lower floor's wood plug-in components, upper strata wood plug-in components are installed in middle steel sheet spare top, make side picture peg I, side picture peg III all insert in the slot IV, L shape folded plate inserts respectively in slot II, slot III, center picture peg I and center picture peg II insert in the slot I after passing between two L shape folded plates, upper strata wood plug-in components and beam link end fixed connection.
Preferably, one corner of the filler wood block is a groove III matched with one corner of the central connecting column, and two side faces opposite to the groove are provided with grooves IV matched with the folded edges of the coamings.
Preferably, the periphery of the combined column is also coated with FRP fiber cloth.
Preferably, the upper and lower end surfaces of the beam connecting end are lower than the upper and lower end surfaces of the beam connecting member.
The invention also aims to provide an installation method of the mortise-tenon square steel-wood assembled node, which comprises the following steps:
the first step is as follows: assembling the combined column, inserting the filling wood block into the steel insert, wherein one section of the filling wood block is higher than the steel insert, and coating FRP fiber cloth on the periphery of the steel insert;
the second step is that: installing a column connector, and inserting the column connector into the steel insert;
the third step: installing beam connecting pieces, namely inserting two beam connecting pieces II into two windows of the column connecting pieces in opposite directions, then inserting the two beam connecting pieces I into the other two windows of the column connecting pieces in opposite directions, connecting the beam connecting pieces I and the beam connecting pieces II in a mortise-tenon manner, and finally inserting wood bolts into square grooves of the inserting strips;
the fourth step: and (4) mounting the combined beam, and mounting the combined beam at the beam connecting end.
The invention has the following beneficial effects:
(1) the design of the combined column of the invention takes the steel plug-in as the center, which ensures the connection and fixation of the column, the filling wood block can reduce the requirement of large-scale wood, and the FRP fiber cloth ensures the strength and connection of the combined column;
(2) according to the design of the combined beam, the beam is divided into three parts to be combined, the strength is verified simply due to clear stress, and the web plate main body is a steel plate, so that the deflection problem can be effectively solved;
(3) according to the square steel-wood composite node, the main material is wood, steel and FRP fiber materials are scientifically combined, the advantages of various materials are exerted, and the strength can reach a higher level while the weight is light;
(4) the invention is installed in a fully-assembled mode, steel members are not welded, only tenon-and-mortise inserted pins and FRP fiber cloth are used for winding and installing, the construction quality is ensured, and in a short construction period, installation personnel can ensure high-level construction quality without special training.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an integrated column structure;
FIG. 3 is a steel insert block diagram;
FIG. 4 is a schematic view of a filler block construction;
FIG. 5 is a schematic structural view of a node mortise and tenon assembly; (ii) a
FIG. 6 is a schematic view of a post connector configuration;
FIG. 7 is a schematic view of a beam connector configuration;
FIG. 8 is one of the schematic structural views of the beam connector I;
FIG. 9 is a second schematic view of the structure of the beam connector I;
FIG. 10 is a schematic structural view of a beam connector II;
FIG. 11 is a schematic view of the opposite installation of beam connector II;
FIG. 12 is a schematic view of the installation of beam connector I and beam connector II;
FIG. 13 is a view showing the completion of the installation of the beam connector I and the beam connector II;
FIG. 14 is a schematic view of a beam attachment end configuration;
FIG. 15 is a schematic view of a center connector block configuration;
FIG. 16 is a schematic view of an integrated column configuration;
FIG. 17 is a schematic view of a top wood insert construction;
FIG. 18 is a schematic structural view of an intermediate steel plate member;
FIG. 19 is a schematic view of the construction of an underlying wood insert;
FIG. 20 is a drawing of an installation step of the present invention;
wherein the figures include the following reference numerals: 1. a combination column; 11. a steel insert; 1101. a central connecting column; 1102. a connecting plate; 1103. enclosing plates; 12. filling wood blocks; 1201. a groove III; 1202. a groove IV; 13. FRP fiber cloth;
2. a composite beam; 21. an upper layer wood insert; 2101. an upper wing plate; 2102. a side plug board II; 2103. a slot I; 22. an intermediate steel plate member; 2201. a side web; 2202. l-shaped folded plates; 2203. a slot IV; 23. a lower layer wood insert; 2301. a lower wing plate; 2302. a central plugboard II; 2303. a side plug board III; 2304. a slot III;
3. the node tenon-and-mortise components; 31. a post connector; 3101. a window; 3102. a post connection end; 32. a beam connecting piece I; 3201. inserting plates; 3202. cutting; 3203. a groove I; 3204. a wood bolt; 33. a beam connecting piece II; 3301. inserting a block; 3302. a groove II; 34. a beam connecting end; 3401. a central connecting block; 3402. a side connecting block; 3403. a central plugboard I; 3404. a side plug board I; 3405. and a slot II.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the square tenon-and-mortise steel-wood assembled node comprises a combined column 1, a combined beam 2 and a node tenon-and-mortise assembly 3, wherein the combined column 1 is connected with the combined beam 2 through the node tenon-and-mortise assembly 3;
as shown in fig. 2-4, the composite column 1 comprises a steel insert 11 and a filler block 12, the steel insert 11 comprises a central connecting column 1101, a connecting plate 1102 and surrounding plates 1103, the central connecting column 1101 is a square column, one connecting plate 1102 vertically extends out of each of four side faces of the central connecting column 1101, the surrounding plates 1103 are vertically fixed at the ends of the connecting plates 1102, the left and right ends of the surrounding plates 1103 are folded inwards, two adjacent surrounding plates 1103 and two adjacent connecting plates 1102 form a square space with an opening at one corner, and four square spaces are formed in the steel insert 11; each square space is inserted with a filling wood block 12, and the section of the filling wood block 12 is matched with that of the square space.
As shown in fig. 5 to 6, the node mortise and tenon assembly 3 includes a column connector 31, a beam connector and a beam connecting end 34; the four side surfaces of the column connecting piece 31 are all provided with windows 3101 for inserting the beam connecting piece, the upper end and the lower end of the column connecting piece 31 are column connecting ends 3102, and the column connecting ends 3102 are connected with the combined column 1.
As shown in fig. 7, the beam connecting piece comprises two beam connecting pieces i 32 and two beam connecting pieces ii 33 which are in mortise and tenon connection, the other ends of the beam connecting pieces i 32 and the beam connecting pieces ii 33 are beam connecting ends 34, and the beam connecting ends 34 are connected with the combined beam 2.
As shown in fig. 7-14, one end of the beam connecting piece i 32 is a mortise end, the other end is a beam connecting end 34, one end of the beam connecting piece ii 33 is a mortise end, the other end is a beam connecting end 34, the mortise ends of the two beam connecting pieces i 32 are oppositely inserted into the window 3101 of the column connecting piece 31, the mortise ends of the two beam connecting pieces ii 33 are oppositely inserted into the window 3101 of the column connecting piece 31, and the mortise ends of the two beam connecting pieces i 32 and the mortise ends of the two beam connecting pieces ii 33 are connected together through mortise and tenon joints.
As shown in fig. 8, an inserting plate 3201 and two upper and lower inserting strips 3202 are arranged in the middle of the beam connecting member i 32, the inserting plate 3201 is located at one side of the inserting strips 3202, the upper surface of the inserting plate 3201 and the lower surface of the upper inserting strip are in the same plane, the lower surface of the inserting plate 3201 and the upper surface of the lower inserting strip are in the same plane, the end part of the inserting plate 3201 is in a step shape, and two ends of the inner side surface of the inserting strip 3202 are both provided with grooves i 3203; an inserting block 3301 is arranged on one side of the beam connecting piece II 33, grooves II 3302 are respectively arranged on the left side surface and the right side surface of the inserting block 3301 in a staggered mode, and the grooves II 3302 are arranged corresponding to the end portions of the two inserting plates 3201; the two beam connecting pieces II 33 are oppositely inserted into the window 3101, and the two inserting blocks 3301 are overlapped; two I32 opposite directions of the beam connecting piece are inserted into the window 3101, the end parts of two inserting plates 3201 are respectively inserted into the grooves II 3302, two inserting strips 3202 are respectively inserted into the upper side and the lower side of the opposite inserting plate 3201, the grooves I3203 on the two upper inserting strips and the two lower inserting strips are butted to form a square groove, and a wood bolt 3204 is inserted into the square groove.
As shown in fig. 14-15, beam connection end 34 include central connecting block 3401 and two side connecting blocks 3402, two side connecting blocks 3402 symmetry set up in central connecting block 3401 both sides, central connecting block 3401 includes central picture peg I3403 and two side picture pegs I3404, two side picture pegs I3404 symmetry set up in central picture peg I3403 both sides, form slot II 3405 between central picture peg I3403 and picture peg I3404, central picture peg I3403 is higher than side picture peg I3404.
As shown in fig. 16, the composite beam 2 is an i-beam, and includes upper layer wood inserts 21, middle steel plate pieces 22 and lower layer wood inserts 23, the upper layer wood inserts 21 and the lower layer wood inserts 23 are inserted through the middle steel plate pieces 22, and the upper layer wood inserts 21 and the lower layer wood inserts 23 are respectively and fixedly connected to the connection end 34.
As shown in fig. 17, the upper wood insert 21 has a pi-shaped cross section, and includes an upper wing plate 2101 and two parallel side insert plates ii 2102, and a slot i 2103 is formed between the two parallel side insert plates ii 2102.
As shown in fig. 18, the intermediate steel plate member 22 comprises two symmetrically arranged web assemblies, each web assembly comprises a side web 2201 and an L-shaped flap 2202, the L-shaped flap 2202 is vertically fixed at the central position of the side web 2201, and an insertion groove iv 2203 is formed between the L-shaped flap 2202 and the side web 2201;
as shown in fig. 19, the lower layer wood insert 23 comprises a lower wing plate 2301 and a central insert plate assembly, the central insert plate assembly comprises a central insert plate ii 2302 and side insert plates iii 2303, the side insert plates iii 2303 are symmetrically arranged on two sides of the central insert plate ii 2302, an insert groove iii 2304 is formed between the side insert plate iii 2303 and the central insert plate ii 2302, and the central insert plate ii 2302 is higher than the side insert plates iii 2303; the length of one end of the lower wing plate 2301 is greater than the length of the center flashboard assembly;
the convex end of the lower wing plate 2301 is inserted into the bottom surface of the beam connecting end 34 and fixedly connected with the beam connecting end 34, the central inserting plate assembly of the lower layer wood inserting piece is aligned with the central connecting block 3401, the middle steel plate part 22 is arranged above the central inserting plate assembly and the central connecting block 3401 of the lower layer wood inserting piece, the upper layer wood inserting piece 21 is arranged above the middle steel plate part 22, so that the side inserting plate I3404 and the side inserting plate III 2303 are inserted into the slot IV 2203, the L-shaped folded plates 2202 are respectively inserted into the slot II 3405 and the slot III 2304, the central inserting plate I3403 and the central inserting plate 2302 II penetrate between the two L-shaped folded plates 2202 and then are inserted into the slot I2103, and the upper layer wood inserting piece 21 is fixedly connected with the beam.
As shown in fig. 20, the mortise and tenon square steel-wood assembled node of the present invention comprises the following steps:
the first step is as follows: assembling the combined column 1, inserting the filling wood block 12 into the steel insert 11, wherein the filling wood block is higher than the steel insert 11, and coating FRP fiber cloth 13 on the periphery of the steel insert 11;
the second step is that: installing the column connector 31, inserting the column connector 31 into the steel insert 11;
the third step: installing the beam connecting pieces, namely inserting the two beam connecting pieces II 33 into the two windows 3101 of the column connecting piece in an opposite direction, then inserting the two beam connecting pieces I32 into the other two windows 3101 in an opposite direction, connecting the beam connecting pieces I32 with the beam connecting pieces II 33 in a mortise-tenon manner, and finally inserting wood bolts 34 into the square grooves of the inserting strips;
the fourth step: installing the composite beam 2, installing the composite beam 2 at the beam connecting end 34:
(a) inserting one end of the lower wing plate 2301 protruding into the bottom surface of the beam connecting end 34 and fixedly connecting with the beam connecting end 34, wherein the central flashboard assembly of the lower layer wood plug-in unit is aligned with the central connecting block 3401;
(b) the middle steel plate part 22 is arranged above a central inserting plate component and a central connecting block 3401 of the lower layer wood inserting piece, so that a side inserting plate I3404 and a side inserting plate III 2303 are inserted into an inserting groove IV 2203, and an L-shaped folded plate 2202 is respectively inserted into an inserting groove II 3405 and an inserting groove III 2304;
(c) the upper-layer wood insert 21 is arranged above the middle steel plate part 22, the central insert plate I3403 and the central insert plate II 2302 penetrate between the two L-shaped folded plates 2202 and then are inserted into the slot I2103, and the upper-layer wood insert 21 is fixedly connected with the beam connecting end 34.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The tenon-and-mortise square steel-wood assembled node is characterized by comprising a combined column (1), a combined beam (2) and a node tenon-and-mortise assembly (3), wherein the combined column (1) is connected with the combined beam (2) through the node tenon-and-mortise assembly (3);
the combined column (1) comprises a steel plug-in unit (11) and a filler block (12), the steel plug-in unit (11) comprises a central connecting column (1101), connecting plates (1102) and enclosing plates (1103), the central connecting column (1101) is a square column, the connecting plates (1102) vertically extend out of four side faces of the central connecting column (1101), the enclosing plates (1103) are vertically fixed at the end parts of the connecting plates (1102), the left ends and the right ends of the enclosing plates (1103) are folded inwards, two adjacent enclosing plates (1103) and two adjacent connecting plates (1102) enclose a square space with an opening at one corner, and four square spaces are formed in the steel plug-in unit (11); a filling wood block (12) is inserted into each square space, and the section of each filling wood block (12) is matched with that of each square space;
the node mortise and tenon component (3) comprises a column connecting piece (31), a beam connecting piece and a beam connecting end (34); windows (3101) for inserting the beam connecting piece are formed in four side faces of the column connecting piece (31), column connecting ends (3102) are formed in the upper end and the lower end of the column connecting piece (31), and the column connecting ends (3102) are connected with the combined column (1);
the beam connecting piece comprises two beam connecting pieces I (32) and two beam connecting pieces II (33) which are connected together in a mortise-tenon mode, the other ends of the beam connecting pieces I (32) and the beam connecting pieces II (33) are beam connecting ends (34), and the beam connecting ends (34) are connected with the combined beam (2);
the combined beam (2) is an I-beam and comprises an upper-layer wood insert (21), a middle steel plate piece (22) and a lower-layer wood insert (23), the upper-layer wood insert (21) and the lower-layer wood insert (23) are spliced through the middle steel plate piece (22), and the upper-layer wood insert (21) and the lower-layer wood insert (23) are fixedly connected with the connecting end (34) respectively.
2. The square steel-wood matched stack node in tenon fourth of twelve earthly branches according to claim 1, characterized in that, one end of beam connecting piece I (32) is the tenon joint end, one end is beam joint end (34), one end of beam connecting piece II (33) is the mortise joint end, one end is beam joint end (34), the tenon joint end subtend of two beam connecting pieces I (32) inserts respectively in window (3101) of post connecting piece (31), the mortise joint end subtend of two beam connecting pieces II (33) inserts respectively in window (3101) of post connecting piece (31), the tenon joint end of two beam connecting pieces I (32) and the mortise joint end of two beam connecting pieces II (33) are connected together through tenon fourth of twelve earthly branches.
3. The mortise and tenon square steel-wood assembly node according to claim 2, wherein a plug board (3201) and an upper and a lower plug strip (3202) are arranged in the middle of the beam connecting piece I (32), the plug board (3201) is positioned at one side of the plug strip (3202), the upper surface of the plug board (3201) and the lower surface of the upper plug strip are in the same plane, the lower surface of the plug board (3201) and the upper surface of the lower plug strip are in the same plane, the end part of the plug board (3201) is in a step shape, and two ends of the inner side surface of the plug strip (3202) are provided with grooves I (3203);
an inserting block (3301) is arranged on one side of the beam connecting piece II (33), grooves II (3302) are respectively arranged on the left side surface and the right side surface of the inserting block (3301) in a staggered mode, and the grooves II (3302) are arranged corresponding to the end portions of the inserting plates (3201);
the two beam connecting pieces II (33) are oppositely inserted into the windows (3101), and the two inserting blocks (3301) are overlapped; two beam connecting pieces I (32) are oppositely inserted into the window (3101), the end parts of two inserting plates (3201) are respectively inserted into the grooves II (3302), two inserting strips (3202) are respectively inserted into the upper side and the lower side of the opposite inserting plate (3201), the grooves I (3203) on the two upper inserting strips and the two lower inserting strips are butted to form a square groove, and a wood bolt (3204) is inserted into the square groove.
4. The mortise and tenon square steel-wood assembly node according to claim 3, wherein the beam connecting end (34) comprises a central connecting block (3401) and two side connecting blocks (3402), the two side connecting blocks (3402) are symmetrically arranged on two sides of the central connecting block (3401), the central connecting block (3401) comprises a central inserting plate I (3403) and two side inserting plates I (3404), the two side inserting plates I (3404) are symmetrically arranged on two sides of the central inserting plate I (3403), a slot II (3405) is formed between the central inserting plate I (3403) and the inserting plate I (3404), and the central inserting plate I (3403) is higher than the side inserting plates I (3404).
5. The mortise and tenon square steel-wood assembly node according to claim 4, wherein the section of the upper wood insert (21) is pi-shaped, the upper wood insert comprises an upper wing plate (2101) and two parallel side insert plates II (2102), and a slot I (2103) is formed between the two parallel side insert plates II (2102);
the middle steel plate piece (22) comprises two web plate assemblies which are symmetrically arranged, each web plate assembly comprises a side web plate (2201) and an L-shaped folded plate (2202), the L-shaped folded plate (2202) is vertically fixed at the center of the side web plate (2201), and an insertion groove IV (2203) is formed between the L-shaped folded plate (2202) and the side web plate (2201);
the lower-layer wood insert (23) comprises a lower wing plate (2301) and a central insert plate assembly, the central insert plate assembly comprises a central insert plate II (2302) and side insert plates III (2303), the side insert plates III (2303) are symmetrically arranged on two sides of the central insert plate II (2302), an insert groove III (2304) is formed between the side insert plates III (2303) and the central insert plate II (2302), and the central insert plate II (2302) is higher than the side insert plates III (2303); the length of one end of the lower wing plate (2301) is greater than that of the central flashboard component;
the lower wing plate (2301) is inserted into the bottom surface of the beam connecting end (34) and fixedly connected with the beam connecting end (34), a central inserting plate assembly of a lower-layer wood inserting piece is aligned with the central connecting block (3401), the middle steel plate piece (22) is installed above the central inserting plate assembly and the central connecting block (3401) of the lower-layer wood inserting piece, the upper-layer wood inserting piece (21) is installed above the middle steel plate piece (22), so that the side inserting plate I (3404) and the side inserting plate III (2303) are both inserted into the slot IV (2203), the L-shaped folded plates (2202) are respectively inserted into the slot II (3405) and the slot III (2304), the central inserting plate I (3403) and the central inserting plate II (2302) penetrate between the two L-shaped folded plates (2202) and then are inserted into the slot I (2103), and the upper-layer wood inserting piece (21) is fixedly connected with the beam connecting end (34).
6. The square steel-wood assembly node of tenon fourth of the twelve earthly branches according to claim 1, characterized in that, a corner of the filler wood block (12) is a groove III (1201) matching with a corner of the central connection column (1101), and grooves IV (1202) matching with the folded edges of the coaming (1103) are arranged on both sides opposite to the groove.
7. The mortise and tenon square steel-wood assembly node according to claim 1, wherein the periphery of the assembly column (1) is further coated with FRP fiber cloth (13).
8. The mortise and tenon square steel-wood assembly node according to claim 1, wherein the upper and lower end faces of the beam connecting end (34) are lower than the upper and lower end faces of the beam connecting member.
9. A method for installing a square mortise and tenon matched steel-wood assembled node according to any one of the preceding claims, which comprises the following steps:
the first step is as follows: assembling the combined column (1), inserting the filling wood block (12) into the steel insert (11), wherein the filling wood block is higher than the steel insert (11), and coating FRP fiber cloth (13) on the periphery of the steel insert (11);
the second step is that: installing a column connector (31), and inserting the column connector (31) into the steel insert (11);
the third step: installing beam connecting pieces, namely inserting two beam connecting pieces II (33) into two windows (3101) of the column connecting piece in opposite directions, then inserting two beam connecting pieces I (32) into the other two windows (3101) in opposite directions to enable the beam connecting pieces I (32) and the beam connecting pieces II (33) to be in mortise and tenon connection, and finally inserting wood plugs (34) into square grooves of the inserting strips;
the fourth step: installing the composite beam (2), and installing the composite beam (2) at the beam connecting end (34):
(a) inserting one end of the lower wing plate (2301) which protrudes into the bottom surface of the beam connecting end (34) and fixedly connecting with the beam connecting end (34), wherein a central flashboard assembly of the lower-layer wood plug-in unit is aligned with the central connecting block (3401);
(b) the middle steel plate piece (22) is arranged above a central flashboard assembly and a central connecting block (3401) of the lower-layer wood plug-in unit, so that a side flashboard I (3404) and a side flashboard III (2303) are inserted into a slot IV (2203), and an L-shaped folded plate (2202) is respectively inserted into a slot II (3405) and a slot III (2304);
(c) the upper-layer wood insert (21) is arranged above the middle steel plate piece (22), the central insert plate I (3403) and the central insert plate II (2302) penetrate between the two L-shaped folded plates (2202) and then are inserted into the slot I (2103), and the upper-layer wood insert (21) is fixedly connected with the beam connecting end (34).
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