CN114517602A - Full rigid connection orthogonal glued wood coupled shear wall based on steel plate constraint - Google Patents

Abstract

The invention relates to a full rigid-connection orthogonal laminated wood coupled shear wall based on steel plate constraint, which is a multilayer structure from bottom to top, wherein each layer of structure comprises two orthogonal laminated wood shear walls which are transversely connected through laminated wood coupling beams, the left beam end and the right beam end of the laminated wood connecting beam are fixedly connected with the orthogonal laminated wood shear wall through the orthogonal laminated wood wall limb and the connecting piece of the connecting beam respectively, two orthogonal laminated wood shear wall toes in the lowest layer structure are fixedly connected with the foundation through the orthogonal laminated wood wall limb and the connecting piece of the foundation, the orthogonal laminated wood shear walls at the corresponding positions in each layer of structure above the lowest layer structure are connected through high-strength bolts, compared with the prior art, the invention has the advantages of good side resistance, improvement on the defect that wood at the bolt joint is easy to generate cross grain splitting damage, high rigidity of the joints of the shear wall and the coupling beam and the joints of the wall toe and the foundation, high assembly degree and the like.

Description

Full rigid connection orthogonal glued wood coupled shear wall based on steel plate constraint

Technical Field

The invention relates to the field of structural engineering wood structure buildings, in particular to a full rigid connection orthogonal glued wood coupled shear wall with beam ends and wall toes constrained based on steel plates, which is used for a multi-layer wood structure building with higher requirements on earthquake resistance.

Background

Orthogonal laminated wood (CLT) belongs to heavy engineering wood, is an orthogonal assembly of at least 3 layers of solid wood sawn timber or structural composite boards, is a prefabricated engineering wood board synthesized by using structural adhesive glue, has the characteristics of high lateral stiffness, good bearing capacity, stable dimension, excellent two-way mechanical property, environmental protection, high industrialization degree and the like, is commonly used for floors, shear walls and the like of multi-story and high-rise wood structures, but under the action of earthquake, the conventional CLT shear wall loses lateral bearing capacity due to premature failure of a node area, forms a failure mode of 'weak nodes and strong members', and has small lateral stiffness of the wall body and large residual deformation after earthquake.

In a multi-layer wood structure building, with the increase of building height, the specific gravity of a horizontal load in the total load of the structure is rapidly increased, a shear wall is an important lateral force resistant component in a modern wood structure, the seismic performance of the shear wall is a key factor for determining the seismic performance of the multi-layer wood structure, and the existing single-piece orthogonal laminated wood shear wall is easy to have extrusion damage, shear damage and wood splitting damage of wall corner parts and connecting parts under the action of a horizontal earthquake, so that the lateral stiffness is to be improved, the damage mode is to be improved, and the lateral stiffness of the shear wall in the multi-layer wood structure is required to be improved through technical measures, the damage mode is improved, and the structural seismic capacity is improved.

Disclosure of Invention

The invention aims to overcome the problems that the conventional orthogonal laminated wood shear wall is insufficient in lateral stiffness and cross grain fracture damage is easy to occur when cross grains of a wood screw hole are pressed, and provides the full rigid-connection orthogonal laminated wood coupled shear wall which is large in lateral stiffness, small in residual deformation after an earthquake, high in assembly degree and based on steel plate constraint at a beam end and a wall toe.

The purpose of the invention can be realized by the following technical scheme:

a full rigid connection orthogonal laminated wood coupled shear wall based on steel plate restraint is characterized in that the shear wall is of a multi-layer structure from bottom to top, each layer of structure comprises two orthogonal laminated wood shear walls which are transversely connected through laminated wood coupled beams, the left beam end and the right beam end of each laminated wood coupled beam are fixedly connected with the orthogonal laminated wood shear walls through connecting pieces of orthogonal laminated wood wall limbs and coupled beams, the two orthogonal laminated wood shear wall toes in the lowest layer of structure are fixedly connected with a foundation through the connecting pieces of the orthogonal laminated wood wall limbs and the foundation, and the orthogonal laminated wood shear walls in corresponding positions in each layer of structure above the lowest layer of structure are connected through high-strength bolts.

In the lowest layer structure, the wall toe of the first orthogonal laminated wood shear wall layer is fixedly connected with the foundation through a fifth connecting piece, and the wall toe of the second orthogonal laminated wood shear wall layer is fixedly connected with the foundation through a sixth connecting piece.

The fifth connecting piece is the same with the sixth connecting piece structure and the opening direction is relative, the fifth connecting piece include vertical and mutual parallel arrangement's third outsourcing steel sheet and fourth outsourcing steel sheet and respectively with the third outsourcing steel sheet and the L shaped steel floor that the fourth outsourcing steel sheet outer end extends the connection.

A plurality of bolt holes are formed in corresponding positions of the third outer wrapping steel plate and the fourth outer wrapping steel plate respectively, the third outer wrapping steel plate and the fourth outer wrapping steel plate are fixedly connected through first connecting bolts penetrating through corresponding positions on a layer of wall toe of the first orthogonal laminated wood shear wall, and ground connecting bolt holes fixedly connected with a foundation through connecting pieces and foundation connecting bolts are formed in the bottom surfaces of L-shaped steel rib plates.

The first orthogonal laminated wood shear wall layer and the second orthogonal laminated wood shear wall layer are fixedly connected with the left beam end and the right beam end of the first laminated wood connecting beam through the first connecting piece and the second connecting piece respectively.

The first connecting piece and the second connecting piece are metal connecting pieces, have the same structure and are opposite in opening direction.

First connecting piece include first outsourcing steel sheet and second outsourcing steel sheet, the cross-section of first outsourcing steel sheet be the U type of downward open-ended, the equal opening in its left and right, below, the cross-section of second outsourcing steel sheet be the U type of opening that makes progress, the equal opening in its right and top, first outsourcing steel sheet insert the second outsourcing steel sheet downwards and closely laminate, first outsourcing steel sheet and second outsourcing steel sheet correspond position department and all predetermine a plurality of bolt holes, transversely insert after the space that first outsourcing steel sheet and second outsourcing steel sheet surround formation at first glued wood even roof beam left end, pass first glued wood even roof beam and bolt hole through the bolt and fix for the anti lateral stiffness of reinforcing shear force wall.

And a downward extending steel rib plate is vertically fixed on the left side of the second outer steel plate, and the lower extending part of the steel rib plate is tightly attached and fixed on the inner side surface of one layer of the first orthogonal laminated wood shear wall through a plurality of self-tapping screws so as to connect the node rigidity of the parts.

And a triangular rib plate is arranged between the lower extension part of the steel rib plate and the bottom plate of the second wrapping steel plate.

The first orthogonal laminated wood shear wall layer in the lowest layer structure is connected with the second orthogonal laminated wood shear wall layer in the second layer structure through first high-strength bolts to enhance the lateral stiffness of the shear wall, two upper square holes are formed in the first orthogonal laminated wood shear wall layer at a set distance from the top, two lower square holes are formed in the first orthogonal laminated wood shear wall layer at the same distance from the bottom, and bolt holes provided with the first high-strength bolts are formed between the upper square holes and the lower square holes in corresponding positions.

Compared with the prior art, the invention has the following advantages:

firstly, the laminated wood connecting beam and the orthogonal laminated wood wall limb are connected through the bolts and the self-tapping screws by taking the vertically combined outer steel plates as connecting pieces, so that the structure is simple, the construction is convenient, and the rigidity of the connecting joint of the laminated wood connecting beam and the orthogonal laminated wood shear wall is effectively enhanced.

And secondly, the connecting mode of wrapping the laminated wood connecting beam by using the outer wrapping steel plate is adopted, so that the screw hole of the laminated wood connecting beam in the bolt connection mode is changed into the outer wrapping steel plate in a compression mode, the laminated wood connecting beam is changed into the middle in a tension mode, the two ends of the laminated wood connecting beam are pulled by the steel plate and the connecting beam together, and the problem that wood is easy to generate cross grain splitting damage when the screw hole of the laminated wood connecting beam in the existing bolt connection mode is compressed is effectively solved.

And the orthogonal laminated wood wall limb and the foundation are connected through bolts by the left and right combined steel plates wrapped outside, the structure is simple, the construction is convenient, the assembly degree is high, and the lateral stiffness of the wall body is increased compared with that of a weak node strong member connected with the existing orthogonal laminated wood shear wall.

And fourthly, the upper and lower layers of orthogonal laminated wood shear walls are connected through the reserved hole channels by adopting high-strength bolts, the structure is simple, the construction is convenient, and the lateral stiffness of the shear wall can be effectively enhanced.

According to the fully rigid-connection orthogonal laminated wood coupled shear wall with the beam ends and the wall toes both constrained by the steel plates, the connecting piece arranged at the connecting part of the laminated wood coupled beam and the orthogonal laminated wood coupled wall can effectively enhance the node rigidity and solve the problem that wood is easy to generate cross grain splitting damage when a screw hole of the laminated wood coupled beam is pressed in the existing bolt connection mode. The connecting piece at the toe of the wall and the high-strength bolt between the orthogonal laminated wood shear walls on the upper layer and the lower layer can effectively enhance the lateral stiffness of the shear wall. Therefore, the orthogonal laminated wood shear wall is high in overall rigidity and small in residual deformation after earthquake, the replacement of the earthquake-rear component is facilitated by controlling the failure mode, the structure of the double-limb shear wall meets the requirement of opening the outer wall, and the orthogonal laminated wood shear wall is simple in structure, convenient to construct, high in assembly degree and convenient to popularize.

Drawings

Fig. 1a is a schematic structural diagram of a fully rigid-connection orthogonal glued wood coupled shear wall with beam ends and wall toes both constrained based on steel plates.

Fig. 1b is a structural front view of a fully rigid-connection orthogonal glued wood coupled shear wall with beam ends and wall toes both constrained based on steel plates.

Fig. 2 is a schematic diagram of connection between a wall toe portion and a foundation of the full rigid-connection orthogonal laminated wood coupled shear wall with beam ends and wall toes both constrained based on steel plates.

Fig. 3 is a schematic view of the connection between the middle of an orthogonal laminated wood wall limb and an orthogonal laminated wood connecting beam of the full rigid-connection orthogonal laminated wood coupled shear wall with the beam end and the wall toe both based on steel plate constraint.

Fig. 4 is a schematic structural view of a first wrapping steel plate of an orthogonal laminated wood wall limb and an orthogonal laminated wood connecting beam connecting piece of the full rigid-connection orthogonal laminated wood coupled shear wall with a beam end and a wall toe both based on steel plate constraint.

Fig. 5 is a structural schematic diagram of a second wrapped steel plate of the ribbed steel plate of the orthogonal laminated wood wall limb and the orthogonal laminated wood connecting beam connecting piece of the full rigid-connection orthogonal laminated wood coupled shear wall with the beam end and the wall toe both based on steel plate constraint.

Fig. 6 is a schematic structural view of a third externally-wrapped steel plate of the orthogonal laminated wood wall toe and the foundation connecting piece of the full rigid-connection orthogonal laminated wood coupled shear wall with the beam end and the wall toe both based on steel plate constraint.

Fig. 7 is a structural schematic view of a fourth steel plate wrapping structure of the orthogonal laminated wood wall toe and the foundation connecting member of the full rigid-connection orthogonal laminated wood coupled shear wall with the beam end and the wall toe both based on steel plate constraint.

Fig. 8 is a schematic diagram of a connection structure of square holes and high-strength bolts at the top of one layer and the bottom of two layers of orthogonal laminated wood of the full rigid-connection orthogonal laminated wood coupled shear wall with the beam ends and the wall toes both based on steel plate constraint.

Fig. 9 is a schematic view of the laminated wood coupling beam structure of the present invention.

FIG. 10 is a schematic view of a first cross-laminated veneer shear wall of the present invention.

The notation in the figure is:

1. an orthogonal laminated wood shear wall, 2, a laminated wood connecting beam, 3, a connecting piece of an orthogonal laminated wood wall and a connecting beam, 4, a connecting piece of an orthogonal laminated wood wall and a foundation, 5, a high-strength bolt, 11, a first orthogonal laminated wood shear wall layer, 12, a second orthogonal laminated wood shear wall layer, 13, a first orthogonal laminated wood shear wall layer, 14, a second orthogonal laminated wood shear wall layer, 111, a first orthogonal laminated wood shear wall layer upper square hole, 112, a first orthogonal laminated wood shear wall layer lower bolt hole, 121, a second orthogonal laminated wood shear wall layer upper square hole, 122, a second orthogonal laminated wood shear wall layer lower bolt hole, 1111, an upper first square hole, 1112, an upper second square hole, 1121, a first orthogonal laminated wood shear wall layer lower first bolt hole, 1122, a first orthogonal laminated wood shear wall layer lower bolt hole, 1123. a lower third bolt hole, 1311, a lower first square hole, 1312, a lower second square hole, 21, a first laminated wood coupling beam, 22, a second laminated wood coupling beam, 211, a first laminated wood coupling beam near the first orthogonal laminated wood shear wall side bolt hole, 2111, a first laminated wood coupling beam left first bolt hole, 2112, a first laminated wood coupling beam left second bolt hole, 2113, a first laminated wood coupling beam left third bolt hole, 2114, a first laminated wood coupling beam left fourth bolt hole, 2121, a first laminated wood coupling beam right first bolt hole, 2122, a first laminated wood coupling beam right second bolt hole, 2123, a first laminated wood coupling beam right third bolt hole, 2124, a first laminated wood coupling beam right fourth bolt hole, 31, a first connecting member, 32, a second connecting member, 33, a third connecting member, 34, a fourth connecting member, 311, a first outer clad steel plate, 312. second clad steel plate, 313, bolt, 314, tapping screw, 3111, first bolt hole of first clad steel plate, 3112, second bolt hole of first clad steel plate, 3113, third bolt hole of first clad steel plate, 3114, fourth bolt hole of first clad steel plate, 3121, first bolt hole of second clad steel plate, 3122, second bolt hole of second clad steel plate, 3123, third bolt hole of second clad steel plate, 3124, fourth bolt hole of second clad steel plate, 3131, first connector first bolt, 41, fifth connector, 42, sixth connector, 411, third clad steel plate, 412, fourth clad steel plate, 413, connecting bolt, 4111, first bolt hole of third clad steel plate, 4112, second bolt hole of third clad steel plate, 4113, third bolt hole of third clad steel plate, 4114, connecting bolt hole of third clad steel plate, 4121, first bolt hole of fourth clad steel plate, 4122. the second bolt hole of the fourth steel plate, 4123, the third bolt hole of the fourth steel plate, 4124, the ground connecting bolt hole of the fourth steel plate, 4131, the shear wall and connecting piece connecting bolt, 4132, the connecting piece and foundation connecting bolt, 51, the first high-strength bolt, 52, the second high-strength bolt, 53, the third high-strength bolt, 54 and the fourth high-strength bolt.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

As shown in figure 1, in order to change the failure mode of weak nodes and strong members of the existing orthogonal laminated wood shear wall, solve the defects of smaller rigidity of the nodes of the existing coupled shear wall and the coupling beam and poorer lateral rigidity of the shear wall, and also improve the problem of cross grain fracture failure of the wood with bolt holes when the existing laminated wood coupling beam is connected by bolts, the invention provides the full rigid-joint orthogonal laminated wood coupled shear wall with the beam ends and the wall toes constrained based on steel plates, the rigidity of the nodes is effectively enhanced by wrapping the beam ends of the laminated wood coupling beam by the connecting pieces arranged at the connecting parts of the laminated wood coupling beam and the orthogonal laminated wood wall, the problem that the wood is easy to have cross grain fracture failure when the screw holes of the laminated wood coupling beam are compressed in the existing bolt connection mode is improved, and the lateral rigidity of the shear wall is effectively enhanced by the connecting pieces arranged at the toes and the high-strength bolts arranged between the upper and lower layers of the orthogonal laminated wood shear walls, therefore, the integral rigidity of the orthogonal laminated wood shear wall is increased, the residual deformation after earthquake is reduced, the replacement of the earthquake-rear component is facilitated by controlling the failure mode, the structure of the double-limb shear wall meets the requirement of opening the outer wall, and the orthogonal laminated wood shear wall is simple in structure, convenient to construct, high in assembly degree and convenient to popularize.

The invention provides a full rigid-connection orthogonal laminated wood coupled shear wall with beam ends and wall toes constrained based on steel plates, which comprises orthogonal laminated wood wall limbs 1, orthogonal laminated wood coupling beams 2, a connecting piece 3 of the orthogonal laminated wood wall limbs and the coupling beams, a connecting piece 4 of the orthogonal laminated wood wall limbs and a foundation and a high-strength bolt 5, wherein a first orthogonal laminated wood shear wall layer 11 is fixedly connected with the foundation through a fifth connecting piece 41 at the wall toes, the fifth connecting piece 41 comprises a connecting bolt 413, a third externally-coated steel plate 411 and a fourth externally-coated steel plate 412, the third externally-coated steel plate 411 and the fourth externally-coated steel plate 412 are combined left and right, the front side and the rear side of the first orthogonal laminated wood shear wall layer 11 are tightly attached, and three coaxial bolt holes (in the example, three bolt holes are reserved on the third externally-coated steel plate 411, the fourth externally-coated steel plate 412 and the first orthogonal laminated wood shear wall layer 11, and are respectively a first bolt hole 1121, a bolt hole, is reserved on the lower part of the first orthogonal laminated wood shear wall at the first orthogonal laminated wood shear wall at the lower part of the first orthogonal laminated wall, A first lower second bolt hole 1122 of the first orthogonal laminated wood shear wall layer and a first lower third bolt hole 1123 of the first orthogonal laminated wood shear wall layer), a first bolt hole 4111 of the third cladding steel plate and a first bolt hole 4121 of the fourth cladding steel plate are connected in a penetrating manner through a first connecting bolt 4131, the other bolt holes are the same as the bolt holes, the steel strip rib plate parts extending outwards of the third cladding steel plate 411 and the fourth cladding steel plate 412 are fixedly connected with a foundation through a connecting piece perpendicular to the surface of the foundation and a foundation connecting bolt 4132, and the connection of the other orthogonal laminated wood shear walls and the foundation is the same as the connection of the other orthogonal laminated wood shear walls and the foundation.

In the invention, the first orthogonal laminated wood shear wall layer 11 and the first laminated wood connecting beam 21 are closely attached and connected through the first connecting piece 31, the first connecting piece 31 comprises a first outer wrapping steel plate 311, a second outer wrapping steel plate 312, bolts 313 and self-tapping screws 314, steel rib parts are arranged at the end parts of the second outer wrapping steel plate 312 in a downward extending mode and are closely attached and fixed to the inner side surface of the first orthogonal laminated wood shear wall layer 11 through the self-tapping screws 314, the first outer wrapping steel plate 311 is downward opened, the second outer wrapping steel plate 312 is upward opened, the first outer wrapping steel plate 311 is downward inserted into the second outer wrapping steel plate 312 during assembly, the front side surface and the rear side surface of the first orthogonal laminated wood shear wall layer 11 are closely attached, the first laminated wood connecting beam 21 is transversely inserted in the middle, the first outer wrapping steel plate 311, the second outer wrapping steel plate 312 and the first laminated wood connecting beam 21 are jointly fixed through a plurality of bolts 313 serving as connecting pieces, and the first outer wrapping steel plate 311, the second outer wrapping steel plate 312 and the bolt holes (such as the first laminated wood connecting beam 21) with the same center and the same size are reserved on the first laminated wood connecting beam 21 (such as the first laminated wood connecting beam The first bolt hole 2111 on the left side of the laminated beam, the first bolt hole 3111 of the first clad steel plate and the first bolt hole 3121 of the second clad steel plate) are connected through the first bolt 3131 of the first connecting piece, and the other bolt holes are the same, so that the first laminated beam 21 and the first orthogonal laminated wood shear wall 11 are spliced, and the connection of the other laminated beams and the orthogonal laminated wood shear wall is the same.

In the invention, an upper first square hole 1111 and an upper second square hole 1112 are arranged on the first orthogonal laminated wood shear wall layer 11 at a certain distance from the top, the same lower first square hole 1311 and lower second square hole 1312 are respectively arranged on the first orthogonal laminated wood shear wall layer 13 in the vertical direction at the same distance from the bottom, bolt holes are pre-arranged in the centers of the corresponding square holes (such as the upper first square hole 1111 and the lower first square hole 1311) and are connected through a first high-strength bolt 51, and the connection of the second high-strength bolt 52 is the same, so that the splicing of the first orthogonal laminated wood shear wall layer 11 and the first orthogonal laminated wood shear wall layer 13 is completed, and the splicing of the second orthogonal laminated wood shear wall is the same.

This shear force wall has effectively strengthened quadrature veneer lumber shear force wall lateral stiffness through outer package steel sheet of wall toe department and the outer package steel sheet of wall limb and even roof beam connection position and the high strength bolted connection between the upper and lower layer shear force wall, compares in the "weak node strong member" that current quadrature veneer lumber shear force wall connects, lateral stiffness increases and node and wall toe are close complete rigid coupling more, and, the outsourcing steel sheet becomes the outsourcing steel sheet pressurized with the screw pressurized of original veneer lumber tie beam, can effectively improve the problem that the timber that the veneer lumber tie beam appears among the current veneer lumber shear force wall easily takes place the striation fracture.

Examples

In combination with the above structural description, the shear wall of the present embodiment is manufactured, and the shear wall is used for a two-layer orthogonal laminated wood structure, the layer height is 2.6m, the total height is 5.2m, the total length of the double-limb shear wall is 3600mm, and the thickness is 195 mm; the length of each wall limb is 1200mm, the length of the connecting beam is 1200mm, the section size of the connecting beam is 175mm multiplied by 250mm, a gap of 5mm is reserved between the connecting beam and the wall limb to prevent secondary stress caused by wood expansion, the orthogonal laminated wood connecting beam is made of orthogonal laminated wood with the size of 1190mm multiplied by 175mm multiplied by 250mm, and the positions of two ends where bolts are inserted are respectively reserved with 4 bolt holes with the diameter of 24 mm.

The orthogonal glued wooden wall is prefabricated in a factory, bolt holes with the diameter of 24mm are formed in the positions, needing bolts, of the bottoms of the shear walls of one layer in advance, two square holes with the diameter of 100mm multiplied by 50mm are formed in the positions, 300mm away from the top surface, of the upper portions of the shear walls of the other layer, two square holes with the diameter of 100mm multiplied by 50mm are formed in the positions, 300mm away from the bottom surface, of the bottoms of the shear walls of the other layer, the square holes of the shear walls of the upper layer and the lower layer correspond to each other in the vertical direction, bolt holes with the diameter of 24mm are formed in the middle of the shear walls of the other layer in advance, during assembly, high-strength bolts penetrate through the bolt holes to be fixed on the upper surface and the lower surface of the pre-formed square holes, and the shear walls of the upper layer and the lower layer are tied.

The orthogonal glued wooden wall limb and a third externally-wrapped steel plate of a connecting piece of a foundation are inserted rightwards into a fourth externally-wrapped steel plate, the front side and the rear side of the fourth externally-wrapped steel plate are tightly attached to wrap the front side and the rear side of the orthogonal glued wooden wall limb, bolts are used as the connecting piece to fix a first externally-wrapped steel plate, a second externally-wrapped steel plate and a connecting beam, the third externally-wrapped steel plate and the fourth externally-wrapped steel plate extend outwards to form ribbed steel plate parts, the bolts perpendicular to the surface of the foundation are used as the connecting piece to be fixedly connected with the foundation, holes are formed in the positions where the bolts are arranged in advance in the third externally-wrapped steel plate, the fourth externally-wrapped steel plate and the connecting wall limb, the externally-wrapped steel plate is made of Q235 mild steel with the thickness of 5mm, the third externally-wrapped steel plate is made of two left and right steel plates with the size of 1200mm multiplied by 100mm and the ribbed steel plate parts extending outwards, the distance between the two steel plates is 195mm, the fourth externally-wrapped steel plate is made of two steel plates with the size of the left and right and the ribbed steel plate parts extending outwards, the distance between the two steel plates is 205mm, the wall toe and the outer-wrapped steel plate are both arranged at a distance of 50mm from the bottom surface and 300mm from the end surface every other, the 8.8-level high-strength bolt with the diameter of 24mm is used as the center of a circle, corresponding bolt holes are formed, namely, bolt holes with the diameter of 24mm are formed in the positions, where the bolts are arranged, of the third outer-wrapped steel plate, the fourth outer-wrapped steel plate and the wall limb in advance, during assembly, the bolt holes of the third outer-wrapped steel plate, the fourth outer-wrapped steel plate and the wall limb are connected through bolts with the same axle center, and the bolt holes with the diameter of 24mm are formed in the portions, with ribs, of the third outer-wrapped steel plate and the fourth outer-wrapped steel plate in advance and are used for penetrating through bolts connected with a foundation.

The inner side surface of the orthogonal glued wooden wall limb is connected with a second outer steel plate through a self-tapping screw, a first outer steel plate is downwards inserted into the second outer steel plate, the front side surface and the rear side surface of the first outer steel plate and the second outer steel plate are tightly attached, a glued wooden connecting beam is inserted in the middle of the first outer steel plate, the second outer steel plate and the connecting beam are fixed by using a bolt as a connecting piece, holes are formed in the positions where the bolts are arranged in advance in the first outer steel plate, the second outer steel plate and the connecting beam, the outer steel plate is made of Q235 mild steel with the thickness of 5mm, the first outer steel plate is composed of steel plates with the sizes of 495mm multiplied by 250mm and steel plates with the sizes of 495mm multiplied by 175mm at the upper part, the second outer steel plate is composed of steel plates with the sizes of 500mm multiplied by 250mm at the two sides, steel plates with the sizes of 175mm multiplied by 250mm at the lower part and steel plates with the sizes of 175mm at the two ends extending downwards, a self-tapping screw hole is preset in the extending part, the diameter of the self-tapping screw is 5mm, the distance is 30mm, 6 multiplied by 8 self-tapping screws are arranged on a connecting piece, each side of the joint of the laminated wood connecting beam and the outer wrapping steel plate is provided with 2 multiplied by 2 high-strength 8.8 bolts with the diameter of 24mm, the bolt penetrating positions of the laminated wood connecting beam and the outer wrapping steel plate are provided with holes with the diameter of 24mm in advance, and the bolt holes of the first outer wrapping steel plate, the second outer wrapping steel plate and the connecting beam are coaxially connected through bolts during assembly.

In summary, the invention provides that the wall toe of the orthogonal laminated wood shear wall is connected with the foundation through the outer steel plate, the lateral stiffness of the shear wall can be effectively enhanced, the coupled shear wall structure with better shock resistance is formed, the lateral stiffness of the coupled shear wall can be improved by increasing the wrapping area of the outer steel plate, and the performance adjustment is convenient. The laminated wood connecting beam is connected with the wall self-tapping screws through the bolt connection with the outer steel plate, on one hand, the joint rigidity can be effectively enhanced, and on the other hand, the problem that wood is easy to generate cross grain splitting damage when the screw hole of the laminated wood connecting beam in the existing bolt connection mode is pressed can be improved. The shear wall has the advantages that the high-strength bolt between the first layer and the second layer is tied, the lateral stiffness of the shear wall can be better enhanced, and the shear wall is connected through the bolts, is simple in structure and convenient to construct compared with prestressed steel bars. The shear wall can effectively enhance the lateral stiffness of the shear wall, has good shock resistance, can improve the wood failure mode of the coupling beam, enables the coupling beam to be changed into a steel plate pressed mode, only needs to replace a steel member after failure, is convenient to repair, and has controllable cost. In addition, all the components of the shear wall can be prefabricated in a factory, only bolts and self-tapping screws are needed to be installed in an engineering field, the assembling degree is high, and the construction is convenient.

The structure, ratio, size and the like shown in the drawings of the present embodiment are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the function and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.

Claims (10)

1. The shear wall is of a multi-layer structure from bottom to top, each layer of structure comprises two orthogonal laminated wood shear walls (1) which are transversely connected through laminated wood connecting beams (2), the left beam end and the right beam end of each laminated wood connecting beam (2) are fixedly connected with the orthogonal laminated wood shear walls (1) through orthogonal laminated wood wall limbs and connecting beam connecting pieces (3), the toes of the two orthogonal laminated wood shear walls (1) in the lowest layer of structure are fixedly connected with a foundation through the orthogonal laminated wood wall limbs and the connecting pieces (4) of the foundation, and the orthogonal laminated wood shear walls (1) in corresponding positions in each layer of structure above the lowest layer of structure are connected through high-strength bolts (5).

2. The steel plate constraint-based fully rigid-joint orthogonal laminated wood coupled shear wall is characterized in that in the lowest layer structure, the toe of the first orthogonal laminated wood shear wall layer (11) is fixedly connected with a foundation through a fifth connecting member (41), and the toe of the second orthogonal laminated wood shear wall layer (12) is fixedly connected with the foundation through a sixth connecting member (42).

3. The shear wall is characterized in that the fifth connecting piece (41) and the sixth connecting piece (42) have the same structure and are opposite in opening direction, the fifth connecting piece (41) comprises a third wrapping steel plate (411) and a fourth wrapping steel plate (412) which are vertically arranged and are parallel to each other, and L-shaped steel ribs which are respectively connected with the outer ends of the third wrapping steel plate (411) and the fourth wrapping steel plate (412) in an extending manner.

4. The shear wall is characterized in that a plurality of bolt holes are formed in corresponding positions of the third wrapping steel plate (411) and the fourth wrapping steel plate (412), the third wrapping steel plate and the fourth wrapping steel plate are fixedly connected through first connecting bolts (4131) penetrating through corresponding positions of a wall toe of a first layer (11) of the first orthogonal laminated wood shear wall, and connecting bolt holes fixedly connected with a foundation through connecting pieces and foundation connecting bolts (4132) are formed in the bottom surface of an L-shaped steel rib plate.

5. The full rigid-connection orthogonal laminated wood coupled shear wall based on steel plate constraint according to claim 2, characterized in that the first orthogonal laminated wood shear wall layer (11) and the second orthogonal laminated wood shear wall layer (12) are fixedly connected with the left and right beam ends of the first laminated wood coupling beam (21) through a first connecting piece (31) and a second connecting piece (32), respectively.

6. The shear wall with the full rigid connection and the orthogonal glued wood coupled limbs based on steel plate constraint is characterized in that the first connecting piece (31) and the second connecting piece (32) are both metal connecting pieces, the structures are the same, and the opening directions are opposite.

7. The shear wall is characterized in that the first connecting member (31) comprises a first wrapping steel plate (311) and a second wrapping steel plate (312), the section of the first wrapping steel plate (311) is in a U shape with a downward opening, the left side, the right side and the lower side of the first wrapping steel plate are open, the section of the second wrapping steel plate (312) is in a U shape with an upward opening, the right side and the upper side of the second wrapping steel plate are open, the first wrapping steel plate (311) is downwards inserted into the second wrapping steel plate (312) and is tightly attached to the second wrapping steel plate, a plurality of bolt holes are preset at corresponding positions of the first wrapping steel plate (311) and the second wrapping steel plate (312), the first wrapping steel plate (311) and the second wrapping steel plate (312) are transversely inserted into a space formed by surrounding of the first wrapping steel plate (311) and the second wrapping steel plate (312) at the left end of the first laminated wood connecting beam (21), and then bolts (313) pass through the first wrapping steel plate (21) and the bolt holes to fix the laminated wood connecting beam, the lateral stiffness of the shear wall is enhanced.

8. The shear wall is characterized in that a downward extending steel rib plate is vertically fixed on the left side of the second outer wrapping steel plate (312), and the lower extension part of the steel rib plate is tightly fixed on the inner side surface of one layer (11) of the first orthogonal glued wood shear wall through a plurality of self-tapping screws (314) so as to connect the node rigidity of parts.

9. The shear wall is characterized in that triangular rib plates are arranged between the lower extending parts of the steel rib plates and the bottom plate of the second wrapping steel plate (312).

10. The full-rigid-connection orthogonal laminated wood coupled shear wall based on steel plate restraint is characterized in that a first orthogonal laminated wood shear wall layer (11) in the lowest layer structure and a first orthogonal laminated wood shear wall layer (13) in the second layer structure are connected through first high-strength bolts (51) to enhance the lateral stiffness of the shear wall, two upper square holes are formed in the position, away from the top, of the first orthogonal laminated wood shear wall layer (11), two lower square holes are formed in the position, away from the bottom, of the first orthogonal laminated wood shear wall layer (13), and bolt holes of the first high-strength bolts (51) are formed between the upper square holes and the lower square holes in the corresponding positions.

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