CN208251329U - A kind of laminated structure energy dissipation node - Google Patents

Abstract

The utility model provides an energy-dissipating node of a glued wood structure, which comprises glued wood columns and glued wood beams vertically connected to each other, and embedded steel plates and corner joints; There is a second mortise; there are several bolt holes on the embedded steel plate, a part of the embedded steel plate is inserted into the first mortise, and the other part is inserted into the second mortise; the corner joints include longitudinal plates, transverse plates and ribs The vertical plate, the longitudinal plate and the transverse plate are connected vertically, and several bolt holes are opened on the longitudinal plate and the transverse plate. The ribs are connected between the longitudinal plate and the transverse plate. The nuts fix the longitudinal plate and the glued wood column, and the horizontal plate is in contact with the glued wood beam, and fix the horizontal plate and the glued wood beam through several sets of bolts and nuts; The end face is inwardly concave arc. The energy-dissipating node of the glued wood structure of the utility model has higher rigidity, bending resistance and energy-dissipating capacity.

Description

An energy-dissipating node of a glued-laminated timber structure

technical field

The utility model belongs to the field of wood structure construction, in particular to a corner node used in glued wood structures.

Background technique

As a kind of modern wood structure building, glued wood components are mainly used in large-scale public buildings with large volume and long span. Its structure is simple, easy to manufacture, high in strength and fire resistance limit, and it can truly achieve the purpose of using small materials and inferior materials. Excellent use, various components and beautiful appearance.

The wood component joints of modern glulam structures are usually in the form of joints with embedded steel plate bolts, which are typical semi-rigid properties, which are between hinged joints and rigid joints, and have common characteristics between them. Under the action of external loads, the connection nodes often bear large bending moments and shear forces, and require large stiffness to meet the design and use requirements. In order to meet the greater rigidity requirements, more bolts or the diameter of the bolts are required to increase the proportion of the opening area in the unit area of the wood, which reduces the bearing capacity of the wood and may cause stress concentration damage.

Contents of the invention

The object of the present invention is to provide an energy-dissipating node of a glued wood structure to solve the problem in the prior art that the ratio of the area of the wood opening to the area of the bolt aperture affects the stiffness of the connecting node.

To achieve the above object, the technical solution adopted in the present invention is:

An energy-dissipating node of a glued wood structure, including glued wood columns and glued wood beams vertically connected to each other, as well as embedded steel plates and corner joints; a first tongue and groove is provided at the contact between the glued wood columns and glued wood beams, and the glued wood beams There is a second tenon groove at the contact with the glued wood column; there are several bolt holes on the embedded steel plate, a part of the embedded steel plate is inserted into the first tenon groove, and the other part is inserted into the second tenon groove, and passes through several sets of bolt holes. Bolts and nuts fix the embedded steel plates to the glulam beams and glulam columns respectively; the corner joints include longitudinal plates, transverse plates and rib plates, the longitudinal plates and transverse plates are connected vertically to each other, and the longitudinal plates and transverse plates are opened There are several bolt holes, the ribs are connected between the longitudinal plate and the transverse plate, the longitudinal plate is in contact with the glulam column, and the longitudinal plate and the glulam column are fixed by several sets of bolts and nuts, the transverse plate is in contact with the glulam beam, and The horizontal plate and the glued wood beam are fixed by several groups of bolts and nuts; crescent-shaped energy dissipation holes are opened in the rib plate, and the outer end surface of the rib plate is inwardly concave.

Further, the energy-dissipating hole is enclosed by an outer side, an inner side, and a transitional straight line. Both the outer side and the inner side are arc-shaped, and the radius of the outer side is greater than that of the inner side; The two ends of the side edge are connected with the outer edge by a transition straight edge.

Further, the radius of the arc of the outer end surface of the rib is greater than the radius of the outer edge.

Further, connecting steel plates are fixed at the upper and lower ends of the part where the embedded steel plate is inserted into the second mortise, and several bolt holes are opened on the connecting steel plate, and the positions and numbers of the bolt holes correspond to the bolt holes on the horizontal plate.

Further, the glulam column and the glulam beam are connected in a T-shape, corner joints are provided at the two right angles where the glulam column and the glulam beam meet; Steel plates, and the longitudinal plates, glued wood columns, and steel plates are fixed by several sets of bolts and nuts.

Further, the glued wood column and the glued wood beam are connected in a cross shape, corner joints are provided at the four right angles where the glued wood column and the glued wood beam meet; The longitudinal boards and glued wood columns of the joints are fixed.

Further, the material of the glued wood column and the glued wood beam is glued wood engineering wood.

Further, the corner joints are made of energy-consuming steel with a low yield point, such as 08F steel.

Beneficial effects: the energy-dissipating node of the glued wood structure of the utility model has high rigidity, bending resistance and energy-dissipating capacity, and can meet the seismic design principle of not being damaged by a small earthquake and not falling down by a large earthquake. Corner joints strengthen the bending resistance between beams and columns, which not only increases the bending moment resistance of the joints, but also enhances the shear resistance. The bolts that fix the energy-dissipating corner joints on the wooden column are not at the same place as the bolts that fix the embedded steel plate, which can ensure the strength of the wooden column. The corner joints are decorative to a certain extent, and they are painted in a color similar to that of the wood to make the joints beautiful. When the house is subjected to lateral force and the lateral force is not large, the joint rigidity formed by the embedded steel plate and the small ribs of energy-dissipating corner joints is sufficient to resist the lateral force, ensuring the relative stability between beams and columns, and the house is not damaged; When subjected to a strong force, relative rotation will occur between the beam and the column. When the angle is less than 90 degrees, the corner joints will offset part of the energy through the bending of the ribs, and convert the kinetic energy of the lateral force into a part of the internal energy of the corner joints. , when the angle is greater than 90 degrees, the corner joints offset part of the energy through the straightening of the ribs and ensure its stability. If the cross-section of the glulam is small, the rigidity of the embedded steel plate is sufficient to meet the design requirements of the joint, and the thickness or material strength of the embedded steel plate can be appropriately reduced, and the stiffness of the corner joint can be used to replace the reduced stiffness of the embedded steel plate, which can make The corner joint has greater plasticity, which ensures that when the house is subjected to a large lateral force, the kinetic energy can be converted into a part of internal energy, and the house will not collapse instantly.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the dismantling schematic diagram of the utility model;

Fig. 3 is a structural schematic diagram of a corner joint;

Fig. 4 is a schematic diagram of the arc of the outer end face of the rib of the corner joint;

Fig. 5 is a schematic diagram of the arc of the outer side of the energy dissipation hole of the corner joint;

Figure 6 is a schematic diagram of the arc of the inner side of the energy dissipation hole of the corner joint;

In the figure, 1-glued wood column, 2-glued wood beam, 3-embedded steel plate, 4-steel plate, 5-corner joint, 501-longitudinal plate, 502-horizontal plate, 503-rib plate, 504-energy consumption Hole, 5041-outer edge, 5042-inner edge, 5043-transition straight edge, 6-bolt, 7-nut, 8-first mortise, 9-second mortise, 10-bolt hole, 11-connection steel plate.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings.

As shown in Figure 1-3, an energy-dissipating node of a glulam structure includes glulam columns 1 and glulam beams 2 vertically connected to each other, as well as embedded steel plates 3 and corner joints 5; glulam columns 1 and glulam There is a first tenon and groove 8 at the contact point of the beam 2, and a second tenon and groove 9 at the contact point between the glued wood beam 2 and the glued wood column 1; a number of bolt holes 10 are opened on the embedded steel plate 3, and a part of the embedded steel plate 3 is inserted into the In the first tenon groove 8, the other part is inserted into the second tenon groove 9, and the embedded steel plate 3 is respectively fixed to the glued wood beam 2 and the glued wood column 1 by several groups of bolts 6 and nuts 7; Plate 501, horizontal plate 502 and rib plate 503, vertical plate 501 and horizontal plate 502 are vertically connected to each other, and several bolt holes 10 are opened on both vertical plate 501 and horizontal plate 502, and rib plate 503 is connected to vertical plate 501 and horizontal plate 502 Between them, the longitudinal plate 501 is in contact with the glued wood column 1, and the longitudinal plate 501 and the glued wood column 1 are fixed by several sets of bolts 6 and nuts 7, and the transverse plate 502 is in contact with the glued wood beam 2, and is fixed by several sets of bolts 6 and nuts 7. The nut 7 fixes the horizontal plate 502 and the glued wood beam 2; a crescent-shaped energy dissipation hole 504 is opened in the rib plate 503, and the outer end surface of the rib plate 503 is curved inwardly.

As shown in Figure 4-6, the energy dissipation hole 504 is surrounded by the outer edge 5041, the inner edge 5042, and the transitional straight edge 5043. Both the outer edge 5041 and the inner edge 5042 are arc-shaped, and the outer edge 5041 The radius of the inner edge 5042 is larger than that of the inner edge 5042; both ends of the inner edge 5042 are connected to the outer edge 5041 through a transition straight edge 5043. The radius of the arc of the outer end surface of the rib 503 is greater than the radius of the outer edge 5041 . Specifically, as shown in Figure 4, the center of the arc where the outer end surface of the rib 503 is located is O1, and the radius is R1, and R1=156mm in this embodiment; as shown in Figure 5, the center of the arc where the outer edge 5041 is located is O2, The radius is R2, and R2=123mm in this embodiment; as shown in Figure 6, the center of the arc where the inner edge 5042 is located is O3, and the radius is R3, and R3=69.3mm in this embodiment.

The upper and lower ends of the part where the embedded steel plate 3 is inserted into the second tenon groove 9 are fixed with connecting steel plates 11, and several bolt holes 10 are opened on the connecting steel plate 11, and the positions and numbers of the bolt holes 10 correspond to the bolt holes 10 on the horizontal plate 502 .

The glued wood column 1 and the glued wood beam 2 are connected in a T shape, and corner joints 5 are provided at the two right angles where the glued wood column 1 and the glued wood beam 2 meet; A steel plate 4 is provided, and the longitudinal plate 501 , the glued wood column 1 and the steel plate 4 are fixed by several groups of bolts 6 and nuts 7 .

The glulam column 1 and the glulam beam 2 are connected in a cross shape, and corner joints 5 are provided at the four right angles where the glulam column 1 and the glulam beam 2 meet; A vertical plate 501 of a corner joint 5 and a glued wood column 1 are fixed.

The glued wood column 1 and the glued wood beam 2 are made of glued wood engineering timber.

The corner joint 5 is made of energy-consuming steel with a low yield point, such as 08F steel.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (9)

1. a kind of laminated structure energy dissipation node, it is characterised in that: including the glued pin (1) being mutually connected vertically and laminated wood Beam (2) and embedded steel plate (3), corner connector (5)；Glued pin (1) and glued wooden frame (2) contact position offer the first tongue-and-groove (8), glued wooden frame (2) and glued pin (1) contact position offer the second tongue-and-groove (9)；The embedded steel plate (3) if on offer Bolt stem hole (10) embeds in a part insertion the first tongue-and-groove (8) of steel plate (3), and another part is inserted into the second tongue-and-groove (9), And it is by several groups bolt (6) and nut (7) that embedded steel plate (3) is fixed with glued wooden frame (2) and glued pin (1) respectively； The corner connector (5) includes stringer board (501), transverse slat (502) and floor (503), and stringer board (501) and transverse slat (502) are mutually perpendicular to Connection offers several bolts hole (10) on stringer board (501) and transverse slat (502), floor (503) in succession in stringer board (501) and Between transverse slat (502), stringer board (501) is contacted with glued pin (1), and passes through several groups bolt (6) and nut (7) for stringer board (501) fixed with glued pin (1), transverse slat (502) is contacted with glued wooden frame (2), and passes through several groups bolt (6) and nut (7) transverse slat (502) and glued wooden frame (2) are fixed；The energy consumption hole (504) of crescent shape, floor are offered in floor (503) (503) outer end face is the arc to concave.

2. laminated structure energy dissipation node according to claim 1, it is characterised in that: the energy consumption hole (504) is by outside At (5041), inner side edge (5042), transitional straight, (5043) are enclosed, and outer side edges (5041) and inner side edge (5042) are Arc, the radius of outer side edges (5041) are greater than the radius of inner side edge (5042)；The both ends of inner side edge (5042) pass through transitional straight Side (5043) is connect with outer side edges (5041).

3. laminated structure energy dissipation node according to claim 2, it is characterised in that: floor (503) outer end face The radius of arc is greater than the radius of outer side edges (5041).

4. laminated structure energy dissipation node according to claim 1, it is characterised in that: embedded steel plate (3) insertion the The part upper and lower ends of two tongue-and-grooves (9) are fixed with junction steel plate (11), and junction steel plate offers several bolts hole on (11) (10), the position of bolt hole (10) and quantity are corresponding with bolt hole (10) on transverse slat (502).

5. laminated structure energy dissipation node according to claim 1, it is characterised in that: the gluing pin (1) and gluing Two right angles of wooden frame (2) connection in T shape, glued pin (1) and glued wooden frame (2) joint are provided with corner connector (5)； It is provided with steel plate (4) on glued pin (1) and stringer board (501) opposite face, and will by several groups bolt (6) and nut (7) Stringer board (501), glued pin (1), steel plate (4) are fixed.

6. laminated structure energy dissipation node according to claim 1, it is characterised in that: the gluing pin (1) and gluing Wooden frame (2) is connected in cross, and four right angles of glued pin (1) and glued wooden frame (2) joint are provided with corner connector (5)；It is by several groups bolt (6) and nut (7) that the stringer board (501) of two opposite corner connectors (5), glued pin (1) is solid It is fixed.

7. laminated structure energy dissipation node according to claim 1, it is characterised in that: the gluing pin (1) and gluing The material of wooden frame (2) is glued wood engineering material.

8. laminated structure energy dissipation node according to claim 1, it is characterised in that: the material of the corner connector (5) is The energy consumption steel of low-yield.

9. laminated structure energy dissipation node according to claim 8, it is characterised in that: the energy consumption steel of the low-yield For 08F steel.