CN113931345A - Self-resetting orthogonal laminated wood coupled shear wall based on U-shaped bent plate energy dissipation spring - Google Patents
Self-resetting orthogonal laminated wood coupled shear wall based on U-shaped bent plate energy dissipation spring Download PDFInfo
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 198
- 239000002023 wood Substances 0.000 title claims abstract description 94
- 230000008878 coupling Effects 0.000 claims abstract description 27
- 238000010168 coupling process Methods 0.000 claims abstract description 27
- 238000005859 coupling reaction Methods 0.000 claims abstract description 27
- 210000003371 toe Anatomy 0.000 claims description 124
- 229910000831 Steel Inorganic materials 0.000 claims description 73
- 239000010959 steel Substances 0.000 claims description 73
- 210000003414 extremity Anatomy 0.000 claims description 36
- 210000001255 hallux Anatomy 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000011120 plywood Substances 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 description 11
- 229920001342 Bakelite® Polymers 0.000 description 3
- 239000004637 bakelite Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 210000000454 fifth toe Anatomy 0.000 description 3
- 210000000455 fourth toe Anatomy 0.000 description 3
- 210000000453 second toe Anatomy 0.000 description 3
- 210000000431 third toe Anatomy 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention relates to a self-resetting orthogonal laminated wood coupled shear wall based on a U-shaped bent plate energy dissipation spring, which comprises a first orthogonal laminated wood shear wall and a second orthogonal laminated wood shear wall which are transversely connected through a laminated wood coupling beam. Compared with the prior art, the invention has the advantages of good lateral resistance, small residual deformation after earthquake, high assembly degree, self-resetting capability and the like.
Description
Technical Field
The invention relates to the field of structural engineering wood structure buildings, in particular to a self-resetting orthogonal glued wood coupled shear wall based on a U-shaped bent plate energy dissipation spring.
Background
Orthogonal laminated wood (CLT) belongs to heavy engineering wood, has the advantages of high lateral stiffness, good bearing capacity 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 traditional CLT shear wall loses lateral bearing capacity due to premature failure of a node area to form a failure mode of weak nodes and strong members, and the wall has low earthquake resistance toughness and large residual deformation after earthquake.
In order to overcome the defects, chinese patent 202110691776.2 discloses a self-resettable energy-dissipating orthogonal laminated wood double-limb shear wall structure, which enables a conventional CLT shear wall to have a self-resetting function by installing belleville spring devices at CLT wall limbs, and enables the double-limb shear wall to have multi-stage energy dissipation capabilities by installing multiple energy dissipation elements (friction type energy dissipation elements and energy dissipation angle steels) at the joints of coupling beams and wall limbs, so as to improve the problems of poor energy dissipation under small earthquakes and higher acceleration response under large earthquakes. However, the self-resettable energy-dissipating cross-glued wood double-column shear wall structure still has the following problems, which mainly include:
1) the structure of the joint between the connecting beam and the wall limb which are connected based on the multi-element energy dissipation element is complex, the horizontal limb of the energy dissipation angle steel is also used as the friction surface of the friction type energy dissipation part, and the requirement on the energy dissipation stability of the energy dissipation angle steel is higher;
2) the CLT wall limb is connected with the foundation through the disc spring device, when the CLT plate is thick, the local pressure is high, the local pressure damage is easy to occur at the wall toe, and the CLT shear wall is not suitable for the CLT shear wall with small thickness;
3) after the friction type energy dissipation parts in the multi-element energy dissipation element are activated to dissipate energy, the friction surfaces generate heat due to mutual friction, and if the heat dissipation is not good and the temperature is too high, the risk of wood combustion is caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation spring, which has the advantages of good lateral resistance, small residual deformation after earthquake, high assembly degree and self-resetting.
The purpose of the invention can be realized by the following technical scheme:
the self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation spring comprises a first orthogonal laminated wood shear wall and a second orthogonal laminated wood shear wall which are transversely connected through a laminated wood coupling beam, and is characterized in that the left and right toe parts of the front and back surfaces of the first orthogonal laminated wood shear wall and the second orthogonal laminated wood shear wall are fixedly connected with a foundation through the U-shaped bent plate energy dissipation spring at the toe part respectively, and the connecting parts of the inner side surfaces of the first orthogonal laminated wood shear wall and the second orthogonal laminated wood shear wall and the laminated wood coupling beam are fixedly connected through the U-shaped bent plate energy dissipation spring at the coupling beam part respectively.
The first orthogonal laminated wood shear wall is fixedly provided with a first wall toe U-shaped bent plate energy dissipation spring, a second wall toe U-shaped bent plate energy dissipation spring, a fifth wall toe U-shaped bent plate energy dissipation spring and a sixth wall toe U-shaped bent plate energy dissipation spring at the positions of a front left wall toe, a front right wall toe, a back left wall toe and a back right wall toe respectively, and the second orthogonal laminated wood shear wall is fixedly provided with a third wall toe U-shaped bent plate energy dissipation spring, a fourth wall toe U-shaped bent plate energy dissipation spring, a seventh wall toe U-shaped bent plate energy dissipation spring and an eighth wall toe U-shaped bent plate energy dissipation spring at the positions of the front left wall toe, the front right wall toe, the back left wall toe and the back right wall toe respectively.
The U-shaped bent plate energy dissipation spring at the first wall toe is opened towards the foundation and is fixedly connected with the foundation through the L-shaped wall toe angle steel connecting piece.
The first straight line section of the U-shaped bent plate energy dissipation spring at the first toe is fixedly connected with the vertical limb of the L-shaped wall toe angle steel connecting piece through a bolt, the second straight line section of the U-shaped bent plate energy dissipation spring at the first toe is fixedly connected with the left toe on the front face of the first orthogonal laminated wood shear wall through a screw, and the horizontal limb of the L-shaped wall toe angle steel connecting piece is fixedly connected with the embedded anchor bolt on the foundation.
The medial surface of first quadrature veneer wood shear force wall and last side and the downside of veneer wood even roof beam one end be connected through first even roof beam department U-shaped bent plate power consumption spring and second even roof beam department U-shaped bent plate power consumption spring respectively, the medial surface of second quadrature veneer wood shear force wall and last side and the downside of the veneer wood even roof beam other end be connected through third even roof beam department U-shaped bent plate power consumption spring and fourth even roof beam department U-shaped bent plate power consumption spring respectively.
The openings of the U-shaped bent plate energy dissipation spring at the first connecting beam and the U-shaped bent plate energy dissipation spring at the second connecting beam face the second orthogonal laminated wood shear wall, and the openings of the U-shaped bent plate energy dissipation spring at the third connecting beam and the U-shaped bent plate energy dissipation spring at the fourth connecting beam face the first orthogonal laminated wood shear wall.
The lower straight line section of the U-shaped bent plate energy dissipation spring at the first connecting beam is fastened with the upper straight line section of the U-shaped bent plate energy dissipation spring at the second connecting beam through a bolt penetrating through the laminated wood connecting beam, the upper straight line section of the U-shaped bent plate energy dissipation spring at the first connecting beam is fixed with the horizontal limb of the L-shaped connecting beam angle steel connecting piece corresponding to the upper straight line section, the vertical limb of the L-shaped connecting beam angle steel connecting piece is fixed on the inner side face of the first orthogonal laminated wood shear wall through a self-tapping screw, and the lower straight line section of the U-shaped bent plate energy dissipation spring at the second connecting beam is fixed with the horizontal limb of the L-shaped connecting beam angle steel connecting piece corresponding to the lower straight line section.
The installation mode of the U-shaped bent plate energy dissipation spring at the third connecting beam and the U-shaped bent plate energy dissipation spring at the fourth connecting beam is the same as that of the lower straight line section of the U-shaped bent plate energy dissipation spring at the first connecting beam and that of the U-shaped bent plate energy dissipation spring at the second connecting beam.
The self-resetting orthogonal laminated wood coupled shear wall has self-resetting capability under the condition of small earthquake and energy consumption capability under the condition of large earthquake through the U-shaped bent plate energy consumption spring at the toe of the wall and the U-shaped bent plate energy consumption spring at the coupling beam, the self-resetting force is provided by the U-shaped bent plate energy consumption spring at the toe of the wall, and the energy consumption capability is provided by the yielding of the U-shaped bent plate energy consumption spring at the coupling beam.
The performance of the U-shaped bent plate energy dissipation spring is controlled by adjusting the radius and the thickness of a bending section of the U-shaped bent plate energy dissipation spring, so that the wall body is guaranteed to have a self-resetting function under a small earthquake, the wall body has energy dissipation capability under a large earthquake, the energy dissipation capability is improved by increasing the width of the U-shaped bent plate energy dissipation spring, the glued wood connecting beam has certain deformation capability in a connecting mode of the U-shaped bent plate energy dissipation spring at the connecting beam and the connecting beam angle steel connecting piece, and the node area is prevented from being damaged by tension when the connected limb shear wall is laterally stressed.
Compared with the prior art, the invention has the following advantages:
the connecting beam and the CLT wall limb are connected only through the U-shaped bent plate energy dissipation spring, the structure is simple, the energy dissipation spring has a self-recovery function under small deformation of the wall, and the energy dissipation spring can stably dissipate energy under large deformation of the wall.
And the CLT wall limb is connected with the foundation through the U-shaped bent plate energy dissipation spring, the structure is simple, and when the thickness of the CLT wall plate is smaller, the CLT wall toe cannot be damaged due to over-pressure.
And thirdly, a U-shaped bent plate energy dissipation spring is arranged between the CLT wall limb and the foundation, so that the CLT double-limb shear wall has a self-resetting function when in small deformation and has stable energy dissipation capability when in large deformation.
And fourthly, the U-shaped bent plate energy dissipation spring consumes energy based on plastic deformation, the temperature is not overhigh due to heat production, and the risk of causing wood combustion is overcome.
Drawings
Fig. 1a is a structural front view of a self-resetting orthogonal laminated wood coupled shear wall based on U-shaped bent plate energy dissipation springs.
Fig. 1b is a structural plan view of a self-resetting orthogonal laminated wood coupled shear wall based on U-shaped bent plate energy dissipation springs.
Fig. 2 is a three-dimensional schematic view of the arrangement of the U-shaped bent plate energy dissipation spring and the toe angle steel connector at the first toe.
Fig. 3 is a three-dimensional schematic view of a U-bend at the toe of the wall of the present invention.
Fig. 4 is a three-dimensional schematic view of the toe angle iron connector of the present invention.
Fig. 5 is a three-dimensional schematic view of the arrangement of the U-shaped bent plate energy dissipation spring at the first connecting beam and the connecting beam angle steel connecting piece of the present invention.
FIG. 6 is a three-dimensional view of a U-bend plate at a beam joint according to the present invention.
Fig. 7 is a three-dimensional schematic view of the coupling beam angle steel connector of the present invention.
The notation in the figure is:
11. a first orthogonal laminated wood shear wall, 12, a second orthogonal laminated wood shear wall, 21, a first toe U-shaped bent plate energy dissipation spring, 22, a second toe U-shaped bent plate energy dissipation spring, 23, a third toe U-shaped bent plate energy dissipation spring, 24, a fourth toe U-shaped bent plate energy dissipation spring, 25, a fifth toe U-shaped bent plate energy dissipation spring, 26, a sixth toe U-shaped bent plate energy dissipation spring, 27, a seventh toe U-shaped bent plate energy dissipation spring, 28, an eighth toe U-shaped bent plate energy dissipation spring, 211, a toe U-shaped bent plate first single-limb straight line segment, 212, a toe U-shaped bent plate second single-limb straight line segment, 2111, a toe U-shaped bent plate first bolt hole, 2112, a toe U-shaped bent plate second bolt hole, 2121, a toe U-shaped bent plate third bolt hole, 2122, a toe U-shaped bent plate fourth bolt hole, 31, a first toe U-shaped bent plate energy dissipation spring, 32. a U-shaped bent plate energy dissipation spring at the second connecting beam, 33, a U-shaped bent plate energy dissipation spring at the third connecting beam, 34, a U-shaped bent plate energy dissipation spring at the fourth connecting beam, 311, a first single-limb straight line section of the U-shaped bent plate at the connecting beam, 312, a second single-limb straight line section of the U-shaped bent plate at the connecting beam, 3111, a first bolt hole of the U-shaped bent plate at the connecting beam, 3112, a second bolt hole of the U-shaped bent plate at the connecting beam, 3121, a third bolt hole of the U-shaped bent plate at the connecting beam, 3122, a fourth bolt hole of the U-shaped bent plate at the connecting beam, 41, a wall angle steel connector, 411, a first bolt hole of the wall angle steel connector, 412, a second bolt hole of the wall angle steel connector, 413, a third bolt hole of the wall angle steel connector, 414, a fourth bolt hole of the wall angle steel connector, 42, a connecting beam angle steel connector, 421, a first bolt hole of the connecting beam angle steel connector, 422, a second bolt hole of the connecting beam angle steel connector, 423, a third bolt hole of the connecting beam steel connector, 424. and a fourth threaded hole of the connecting beam angle steel connecting piece, and 5, gluing a wood connecting beam.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1a and 1b, in order to change the failure mode of the weak node and the strong member of the CLT shear wall, solve the contradiction between the lateral stiffness resistance and the deformation resistance of the conventional coupled shear wall, and also to make up the poor energy consumption capability and the large residual deformation after the earthquake of the conventional self-resetting shear wall, the invention provides a self-resetting orthogonal glued wood coupled shear wall based on a U-shaped bent plate energy dissipation spring, which optimizes the connection performance between a coupling beam and shear wall limbs and between shear wall limbs and a foundation by applying the U-shaped bent plate energy dissipation spring and an angle steel connecting piece, therefore, the conventional orthogonal laminated wood shear wall has a self-resetting function under small-side movement and an energy consumption capability under large-side movement, and the defects of poor energy consumption under small earthquake and higher response acceleration under large earthquake of the conventional self-resetting shear wall are overcome.
The self-resetting orthogonal laminated wood coupled shear wall comprises a first orthogonal laminated wood shear wall 11, a second orthogonal laminated wood shear wall 12, a U-shaped bent plate energy dissipation spring 21 at a first toe of a wall, a U-shaped bent plate energy dissipation spring 22 at a second toe of the wall, a U-shaped bent plate energy dissipation spring 23 at a third toe of the wall, a U-shaped bent plate energy dissipation spring 24 at a fourth toe of the wall, a U-shaped bent plate energy dissipation spring 25 at a fifth toe of the wall, a U-shaped bent plate energy dissipation spring 26 at a sixth toe of the wall, a U-shaped bent plate energy dissipation spring 27 at a seventh toe of the wall, a U-shaped bent plate energy dissipation spring 28 at an eighth toe of the wall, a U-shaped bent plate energy dissipation spring 31 at a first connecting beam, a U-shaped bent plate energy dissipation spring 32 at a second connecting beam, a U-shaped bent plate energy dissipation spring 33 at a third connecting beam, a U-shaped bent plate energy dissipation spring 34 at a fourth connecting beam, a toe angle steel connector 41, a beam steel connector 42, a laminated wood connecting beam 5, wherein the first orthogonal laminated wood coupled shear wall 11 passes through the U-shaped bent plate energy dissipation spring 21 at the first toe of the wall, The U-shaped bent plate energy dissipation spring 22 at the second toe, the U-shaped bent plate energy dissipation spring 25 at the fifth toe and the U-shaped bent plate energy dissipation spring 26 at the sixth toe are respectively connected with the vertical limb of the wall toe angle steel connecting piece 41 through a bolt foundation, and the horizontal limb of the wall toe angle steel connecting piece 41 is anchored on the surface of the foundation through a bolt; the first U-bend energy dissipating spring 21 at the toe of the wall, the second U-bend energy dissipating spring 22 at the toe of the wall are located on the front side of the first orthogonal plywood shear wall 11, the fifth U-bend energy dissipating spring 25 at the toe of the wall, and the sixth U-bend energy dissipating spring 26 at the toe of the wall are located on the rear side of the first orthogonal plywood shear wall 11.
The second orthogonal laminated wood shear wall 12 is respectively connected with the corresponding vertical limb of the toe angle steel connecting piece 41 through a bolt through a third toe U-shaped bent plate energy dissipation spring 23, a fourth toe U-shaped bent plate energy dissipation spring 24, a seventh toe U-shaped bent plate energy dissipation spring 27 and an eighth toe U-shaped bent plate energy dissipation spring 28, and the horizontal limb of the toe angle steel connecting piece 41 is anchored on the surface of the foundation through a bolt; the third U-shaped bent plate energy dissipation spring 23 at the toe of the wall and the fourth U-shaped bent plate energy dissipation spring 24 at the toe of the wall are located on the front side of the second orthogonal laminated wood shear wall 12, and the seventh U-shaped bent plate energy dissipation spring 27 at the toe of the wall and the eighth U-shaped bent plate energy dissipation spring 28 at the toe of the wall are located on the rear side of the second orthogonal laminated wood shear wall 12.
In the invention, a laminated wood connecting beam 5 is respectively connected with a corresponding horizontal limb 42 of a connecting beam angle steel connecting piece through a U-shaped bent plate energy dissipation spring 31 at a first connecting beam and a U-shaped bent plate energy dissipation spring 32 at a second connecting beam by bolts, and vertical limbs of the connecting beam angle steel connecting piece 42 are all connected to the side edge of a first orthogonal laminated wood shear wall 11 through screws; the U-shaped bent plate energy dissipation spring 31 at the first connecting beam and the U-shaped bent plate energy dissipation spring 32 at the second connecting beam are respectively positioned at the upper side and the lower side of the laminated wood connecting beam 5. The laminated wood connecting beam 5 is connected with the corresponding horizontal limbs of the connecting beam angle steel connecting piece 42 through bolts of the third connecting beam U-shaped bent plate energy dissipation spring 33 and the fourth connecting beam U-shaped bent plate energy dissipation spring 34 respectively, the vertical limbs of the connecting beam angle steel connecting piece 42 are connected to the side edge of the second orthogonal laminated wood shear wall 12 through bolts, and the third connecting beam U-shaped bent plate energy dissipation spring 33 and the fourth connecting beam U-shaped bent plate energy dissipation spring 34 are located on the upper side and the lower side of the laminated wood connecting beam 5 respectively.
In the invention, the structures of a first U-shaped bent plate energy dissipation spring 21 at the toe of the wall, a second U-shaped bent plate energy dissipation spring 22 at the toe of the wall, a third U-shaped bent plate energy dissipation spring 23 at the toe of the wall, a fourth U-shaped bent plate energy dissipation spring 24 at the toe of the wall, a fifth U-shaped bent plate energy dissipation spring 25 at the toe of the wall, a sixth U-shaped bent plate energy dissipation spring 26 at the toe of the wall, a seventh U-shaped bent plate energy dissipation spring 27 at the toe of the wall and a eighth U-shaped bent plate energy dissipation spring 28 at the toe of the wall are the same. For example, the first single limb linear section 211 of the U-bend dissipative spring 21 at the first toe and the first angle steel connection 41 are bolted. A first bolt hole 2111 of a toe U-shaped bent plate and a second bolt hole 2112 of the toe U-shaped bent plate are reserved on a first single-limb straight line section 211 of the U-shaped bent plate energy dissipation spring 21, and a first bolt hole 411 of a toe angle steel connecting piece, a second bolt hole 412 of the toe angle steel connecting piece, a third bolt hole 413 of the toe angle steel connecting piece and a fourth bolt hole 414 of the toe angle steel connecting piece are reserved on the toe angle steel connecting piece 41. The first single limb straight line section 211 is connected with the toe angle steel connecting piece 41 through the toe U-shaped bent plate first bolt hole 2111 and the reserved toe angle steel connecting piece first bolt hole 411 and through the bolt penetrating through the toe U-shaped bent plate second bolt hole 2112 and the reserved toe angle steel connecting piece second bolt hole 412. And reserving a third screw hole 2121 of the wall-toe U-shaped bent plate and a fourth screw hole 2122 of the wall-toe U-shaped bent plate on the second single-limb straight line section 212 of the U-shaped bent plate energy dissipation spring 21, and nailing the U-shaped bent plate energy dissipation spring 21 to the first orthogonal laminated wood shear wall 11.
In the invention, the U-shaped bent plate energy dissipation spring 31 at the first connecting beam, the U-shaped bent plate energy dissipation spring 32 at the second connecting beam, the U-shaped bent plate energy dissipation spring 33 at the third connecting beam and the U-shaped bent plate energy dissipation spring 34 at the fourth connecting beam have the same structure. For example, the first single-limb straight line segment 311 of the U-shaped plate bending energy dissipation spring 31 at the first coupling beam is connected with the coupling beam angle steel connector 42 through a bolt. A first bolt hole 3111 of a connecting beam U-shaped bent plate and a second bolt hole 3112 of the connecting beam U-shaped bent plate are reserved on the first single-limb straight line section 311, and a third bolt hole 3121 of the connecting beam U-shaped bent plate and a fourth bolt hole 3122 of the connecting beam U-shaped bent plate are reserved on the second single-limb straight line section 312. A first bolt hole 421 and a second bolt hole 422 are reserved on the horizontal limb of the connecting beam angle steel connecting piece 42, and a third screw hole 423 and a fourth screw hole 424 are reserved on the vertical limb of the connecting beam angle steel connecting piece 42. The first bolt hole 3111 of the U-shaped bent plate at the beam connecting position and the first bolt hole 421 of the beam connecting angle steel connecting piece are penetrated through bolts, and the second bolt hole 3112 of the U-shaped bent plate at the beam connecting position and the second bolt hole 422 of the beam connecting angle steel connecting piece are penetrated through bolts, so that the connection between the first single-limb straight line segment 311 and the angle steel connecting piece 312 is realized. And a third bolt hole 3121 and a fourth bolt hole 3122 are reserved on the second single-limb straight line section 312 of the U-shaped bent plate dissipative spring 31 at the first connecting beam, and the U-shaped bent plate dissipative spring 31 at the first connecting beam is fastened on the upper side of the glued wood connecting beam 5 by penetrating bolts through the third bolt hole 3121 and the fourth bolt hole 3122. The connecting beam angle steel connecting piece 42 is nailed to the side edge of the first orthogonal laminated wood shear wall 11 by a tapping screw penetrating through the third screw hole 423 and the fourth screw hole 424 on the vertical limb of the connecting beam angle steel connecting piece 42, so that the laminated wood connecting beam 5 and the first orthogonal laminated wood shear wall 11 are spliced.
The installation process of the shear wall is described in connection with the structure as follows:
threaded holes are reserved on two sides of the left and right wall toes of the first orthogonal laminated wood shear wall 11 in a factory for respectively connecting a U-shaped bent plate energy dissipation spring 21 at the first wall toe, a U-shaped bent plate energy dissipation spring 22 at the second wall toe, a U-shaped bent plate energy dissipation spring 25 at the fifth wall toe and a U-shaped bent plate energy dissipation spring 26 at the sixth wall toe, screw holes are reserved on two sides of the left and right wall toes of the second orthogonal laminated wood shear wall 12 for respectively connecting a U-shaped bent plate energy dissipation spring 23 at the third wall toe, a U-shaped bent plate energy dissipation spring 24 at the fourth wall toe, a U-shaped bent plate energy dissipation spring 27 at the seventh wall toe and a U-shaped bent plate energy dissipation spring 28 at the eighth wall toe, and an anchor bolt is embedded on the basis and is used for connecting the U-shaped bent plate energy dissipation springs at the positions of the toes, and the first connecting beam U-shaped bent plate energy dissipation spring 31 and the laminated wood connecting beam 5 penetrate through the U-shaped bent plate third bolt hole 3121 and the U-shaped bent plate fourth bolt hole 3122 through bolts to fasten the first connecting beam U-shaped bent plate energy dissipation spring 31 on the upper side of the laminated wood connecting beam 5.
As shown in fig. 2, 3 and 4, the connection between the first single-limb straight-line segment 211 and the toe angle steel connecting piece 41 is realized by passing the toe U-shaped bent plate energy dissipation spring 21 and the toe angle steel connecting piece 41 through the toe U-shaped bent plate first bolt hole 2111 and the reserved toe angle steel connecting piece first bolt hole 411, and passing bolts through the toe U-shaped bent plate second bolt hole 2112 and the reserved toe angle steel connecting piece second bolt hole 412 on the site. The first toe U-shaped bent plate energy dissipation spring 21 and the first orthogonal laminated wood shear wall 11 are connected through a toe U-shaped bent plate third screw hole 2121 and a toe U-shaped bent plate fourth screw hole 2122 reserved on the second single-limb straight line section 212, the U-shaped bent plate energy dissipation spring 21 is nailed to the first orthogonal laminated wood shear wall 11, and an embedded anchor bolt on the foundation penetrates through a toe angle steel connecting piece third screw hole 413 and a toe angle steel connecting piece fourth screw hole 414, so that the U-shaped bent plate energy dissipation spring 21 is connected with the foundation.
As shown in fig. 5, 6 and 7, the connection of the first single-limb linear section 311 and the coupling beam angle steel connecting member 42 is realized by penetrating the coupling beam U-shaped bent plate dissipative spring 31 and the coupling beam angle steel connecting member 42 through the coupling beam U-shaped bent plate first bolt hole 3111 and the coupling beam angle steel connecting member first bolt hole 421 and penetrating the coupling beam U-shaped bent plate second bolt hole 3112 and the angle steel connecting member second bolt hole 422 through bolts at the site, the first coupling beam U-shaped bent plate dissipative spring 31 and the bakelite coupling beam 5 are penetrated through the U-shaped bent plate third bolt hole 3121 and the U-shaped bent plate fourth bolt hole 3122 through bolts, the coupling beam U-shaped bent plate dissipative spring 31 is fastened to the upper side of the bakelite coupling beam 5, the coupling beam angle steel connecting member 42 is nailed to the side of the first orthogonal bakelite shear wall 11 by penetrating the tapping screws through the third screw hole 423 and the fourth screw hole 424 on the vertical limb of the coupling beam angle steel connecting member 42, thereby realizing the splicing of the laminated wood coupling beam 4 and the first orthogonal laminated wood shear wall 11.
In summary, the invention provides a coupled shear wall structure which is provided with U-shaped bent plate energy dissipation springs respectively arranged at two ends and two sides of left and right wall toes of a CLT shear wall, wherein the U-shaped bent plate energy dissipation springs are fixedly connected with a wall body and a foundation through angle steel bolts, and the coupled shear wall structure is provided with self-resetting capability under the condition of small earthquake and energy dissipation capability under the condition of large earthquake. The self-restoring force of the wall body is provided by a U-shaped bent plate energy dissipation spring connected with the foundation and the CLT shear wall, and the energy dissipation capacity of the wall body is provided by the yielding of the U-shaped bent plate energy dissipation spring. The performance of the U-shaped bent plate energy dissipation spring can be controlled by designing the radius of the bending section of the U-shaped bent plate energy dissipation spring and the thickness of the steel plate, so that the wall body is ensured to have a self-resetting function under a small earthquake and have energy dissipation capacity under a large earthquake; and the energy consumption capability of the coupled shear wall can be improved by increasing the width of the U-shaped bent plate energy consumption spring, and the performance is convenient to adjust. The laminated wood coupling beam is connected with the wall limb through the U-shaped bent plate energy dissipation spring and the angle steel, the connection mode has certain deformability, and the joint area can be prevented from being damaged by tension when the coupled wall is stressed laterally. The self-resettable U-shaped bent plate energy dissipation spring and heavy wood coupled shear wall can better solve the contradiction between the lateral stiffness and the deformation capacity of the wall body, has good self-resetting capacity and energy dissipation capacity, ensures that the plastic deformation of the wall body after an earthquake is concentrated in the connection area of the U-shaped bent plate energy dissipation spring components, is convenient to repair, has small residual deformation of the wall body, can be prefabricated in a factory, only needs mounting bolts in an engineering field, has high assembly degree and is convenient to construct.
Claims (10)
1. The utility model provides a from quadrature veneer lumber coupled shear force wall that restores to throne based on U-shaped bent plate power consumption spring, includes first quadrature veneer lumber shear force wall (11) and second quadrature veneer lumber shear force wall (12) through veneer lumber tie beam (5) transverse connection, its characterized in that, the right and left dawn department of first quadrature veneer lumber shear force wall (11) and second quadrature veneer lumber shear force wall (12) two sides about wall toe department respectively through dawn department U-shaped bent plate power consumption spring and basis fixed connection, the medial surface of first quadrature veneer lumber shear force wall (11) and second quadrature veneer lumber shear force wall (12) and the connecting portion of veneer lumber tie beam (5) realize fixed connection through tie beam department U-shaped bent plate power consumption spring respectively.
2. The self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation spring as claimed in claim 1, it is characterized in that a first wall toe U-shaped bent plate energy dissipation spring (21), a second wall toe U-shaped bent plate energy dissipation spring (22), a fifth wall toe U-shaped bent plate energy dissipation spring (25) and a sixth wall toe U-shaped bent plate energy dissipation spring (26) are respectively and fixedly arranged at the front left wall toe, the front right wall toe, the back left wall toe and the back right wall toe of the first orthogonal laminated wood shear wall (11), and a third wall toe U-shaped bent plate energy dissipation spring (23), a fourth wall toe U-shaped bent plate energy dissipation spring (24), a seventh wall toe U-shaped bent plate energy dissipation spring (27) and an eighth wall toe U-shaped bent plate energy dissipation spring (28) are respectively fixedly arranged at the front left wall toe, the front right wall toe, the back left wall toe and the back right wall toe of the second orthogonal laminated wood shear wall (12).
3. The self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation springs is characterized in that the U-shaped bent plate energy dissipation springs (21) at the first toe are opened towards the foundation and are fixedly connected with the foundation through L-shaped toe angle steel connectors (41).
4. The self-resetting orthorhombic plywood coupled shear wall based on the U-shaped bent plate energy dissipation spring as claimed in claim 3, wherein a first straight line section of the U-shaped bent plate energy dissipation spring (21) at the first toe is fixedly connected with a vertical limb of an L-shaped toe angle steel connecting piece (41) through a bolt, a second straight line section of the U-shaped bent plate energy dissipation spring (21) at the first toe is fixedly connected with a left toe on the front surface of the first orthorhombic plywood shear wall (11) through a screw nail, and a horizontal limb of the L-shaped toe angle steel connecting piece (41) is fixedly connected with an embedded anchor bolt on a foundation.
5. The self-resetting orthogonal laminated wood coupled shear wall based on U-shaped bent plate energy dissipation springs as claimed in claim 1, wherein the inner side surface of the first orthogonal laminated wood shear wall (11) is connected with the upper side surface and the lower side surface of one end of the laminated wood coupled beam (5) through a first coupled U-shaped bent plate energy dissipation spring (31) and a second coupled U-shaped bent plate energy dissipation spring (32), respectively, and the inner side surface of the second orthogonal laminated wood shear wall (12) is connected with the upper side surface and the lower side surface of the other end of the laminated wood coupled beam (5) through a third coupled U-shaped bent plate energy dissipation spring (33) and a fourth coupled U-shaped bent plate energy dissipation spring (34), respectively.
6. The self-resetting orthogonal laminated wood shear wall based on U-shaped bent plate energy dissipation springs as claimed in claim 5, wherein the openings of the U-shaped bent plate energy dissipation springs (31) at the first connecting beam and the U-shaped bent plate energy dissipation springs (32) at the second connecting beam face the second orthogonal laminated wood shear wall (12), and the openings of the U-shaped bent plate energy dissipation springs (33) at the third connecting beam and the U-shaped bent plate energy dissipation springs (34) at the fourth connecting beam face the first orthogonal laminated wood shear wall (11).
7. The self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation springs is characterized in that lower straight sections of the U-shaped bent plate energy dissipation springs (31) at the first connecting beam and upper straight sections of the U-shaped bent plate energy dissipation springs (32) at the second connecting beam are fastened through bolts penetrating through laminated wood connecting beams (5), upper straight sections of the U-shaped bent plate energy dissipation springs (31) at the first connecting beam and horizontal limbs of L-shaped connecting beam angle steel connecting pieces (42) corresponding to the upper straight sections are fixed, vertical limbs of the L-shaped connecting beam angle steel connecting pieces (42) are fixed on the inner side face of the first orthogonal laminated wood shear wall (11) through self-tapping screws, and lower straight sections of the U-shaped bent plate energy dissipation springs (32) at the second connecting beam and horizontal limbs of the L-shaped connecting beam angle steel connecting beam connecting pieces (42) corresponding to the upper straight sections are fixed.
8. The self-resetting orthorhombic laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation springs as claimed in claim 7, wherein the U-shaped bent plate energy dissipation spring (33) at the third connecting beam and the U-shaped bent plate energy dissipation spring (34) at the fourth connecting beam are installed in the same way as the lower straight line section of the U-shaped bent plate energy dissipation spring (31) at the first connecting beam and the U-shaped bent plate energy dissipation spring (32) at the second connecting beam.
9. The self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation spring as claimed in claim 1, wherein the self-resetting orthogonal laminated wood coupled shear wall has self-resetting capability under small earthquake condition and energy dissipation capability under large earthquake condition through the U-shaped bent plate energy dissipation spring at the toe and the U-shaped bent plate energy dissipation spring at the coupling beam, the self-resetting capability is provided by the U-shaped bent plate energy dissipation spring at the toe, and the energy dissipation capability is provided by the yielding of the U-shaped bent plate energy dissipation spring at the coupling beam.
10. The self-resetting orthogonal laminated wood coupled shear wall based on the U-shaped bent plate energy dissipation spring as claimed in claim 9, is characterized in that the performance of the U-shaped bent plate energy dissipation spring is controlled by adjusting the radius and thickness of the bent section of the U-shaped bent plate energy dissipation spring, so that the wall body is ensured to have a self-resetting function under a small earthquake, the wall body has energy dissipation capability under a large earthquake, the energy dissipation capability is improved by increasing the width of the U-shaped bent plate energy dissipation spring, and the laminated wood coupled beam (5) has certain deformation capability in a connection mode of the U-shaped bent plate energy dissipation spring at the coupled beam and the coupled beam angle steel connector (42) so as to avoid tensile damage of a node area when the coupled shear wall is laterally stressed.
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| CN115059198A (en) * | 2022-07-19 | 2022-09-16 | 西安建筑科技大学 | High-performance ring spring self-resetting composite energy-consuming wall type damper and assembling method thereof |
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