CN114876263A - Self-reset friction energy dissipation connecting piece of swinging shear wall - Google Patents
Self-reset friction energy dissipation connecting piece of swinging shear wall Download PDFInfo
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- CN114876263A CN114876263A CN202210404693.5A CN202210404693A CN114876263A CN 114876263 A CN114876263 A CN 114876263A CN 202210404693 A CN202210404693 A CN 202210404693A CN 114876263 A CN114876263 A CN 114876263A
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 239000002783 friction material Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 238000005265 energy consumption Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000005284 excitation Effects 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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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
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
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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
Abstract
The invention relates to a self-resetting friction energy dissipation connecting piece for a swinging shear wall, and belongs to the technical field of civil engineering energy dissipation, shock absorption and function-restorable shock-proof toughness structures. The invention comprises two parts of a friction assembly and a disc spring assembly, wherein the friction assembly consists of an inner steel plate and an outer steel plate which are connected through a high-strength bolt, the inner steel plate and the outer steel plate are embedded with friction materials, and the inner steel plate is provided with a limit value of the upper-lower displacement of a shear wall controlled by a long round hole. The inner plate is connected with the foundation, and the outer plate is connected with the shear wall through the lining plate. The disc spring component consists of a composite combined disc spring, an anchor rod, an anchor plate, a limiting plate and a limiting nut; the disc spring is fixed by an anchor rod, a limiting plate and a nut, penetrates into the upper anchor plate and the lower anchor plate, and is hinged with the top plate, so that the anchor rod and the anchor plate can be prevented from self-locking due to the fact that the top plate deviates from a horizontal position; the invention has simple and reasonable structure and adjustable initial rigidity, and is suitable for an assembled structure. The components after the earthquake can be detached and replaced according to the actual damage condition, so that the repair cost and time are reduced, and the function can be restored.
Description
Technical Field
The invention relates to a self-resetting friction energy dissipation connecting piece for a swinging shear wall, and belongs to the technical field of civil engineering energy dissipation, shock absorption and function-restorable shock-proof toughness structures.
Background
China is one of the countries with frequent earthquakes, the traditional building structure system resists the earthquake action through the ductility of materials and structural deformation, although the structure does not collapse after the earthquake, the structure is difficult to repair, and a large amount of manpower and material resources are consumed. The shockproof toughness structural system with the recoverable function has no damage or little damage after the earthquake and can be quickly recovered for use without repairing or slightly repairing. The swing shear wall is one of recoverable functional structure systems, the constraint of an interface between the swing shear wall and a foundation is released, so that the interface only has the compression capacity but no tension capacity, and when an earthquake occurs, the wall body is lifted to a certain extent under the action of horizontal overturning moment to form a swing structure.
At present, most research and engineering practices form a self-resetting mechanism by applying prestress in the swinging shear wall, but the problems of large prestress loss, uneven stress and wire breakage of a steel bundle, large replacement difficulty, insufficient collapse resistance and the like exist.
Aiming at the problems, the invention provides the self-resetting friction energy-dissipation connecting piece which utilizes the disc spring to provide a self-resetting mechanism and utilizes the friction plate to provide an energy-dissipation mechanism, so that the post-earthquake damage of the shear wall is effectively reduced, the repairing efficiency is improved, and the shockproof toughness goals of keeping elasticity in small and medium earthquakes, recovering little residue in large earthquakes and preventing collapse in large earthquakes can be realized.
Disclosure of Invention
Aiming at the problems of large residual deformation and limited energy consumption capability of a swinging shear wall after an earthquake in the prior art, the invention provides a self-resetting friction energy consumption connecting piece of the swinging shear wall, the friction assembly of the self-resetting friction energy consumption connecting piece dissipates the earthquake energy of an input structure system, and the self-resetting capability is provided by the disc spring assembly of the self-resetting friction energy consumption connecting piece, so that the residual deformation after the earthquake is reduced or eliminated; the anti-seismic performance and the post-seismic function restorability of the swing shear wall are greatly improved.
The invention relates to a disc spring assembly comprising a friction assembly and a disc spring assembly arranged on the friction assembly, wherein:
friction subassembly includes interior steel sheet, outer steel sheet, friction material, steel sheet bolt, welt bolt and welt, wherein:
the inner steel plate and the outer steel plate are connected by steel plate bolts, and friction materials are embedded between the inner steel plate and the outer steel plate;
the outer steel plate is connected with the lining plate through a lining plate bolt, and the lining plate is welded with the top plate;
dish spring subassembly includes compound combination dish spring, stock, anchor slab, limiting plate, stop nut, roof, otic placode and articulated bolt, wherein:
the compound combination dish spring is fixed by stock, limiting plate and stop nut, penetrates upper and lower anchor slab, wherein:
the inner aperture of the limiting plate is required to be smaller than the outer diameter of the limiting nut;
the inner aperture of the anchor plate is larger than the outer diameter of the limiting nut and smaller than the outer diameter of the limiting plate;
the anchor rod is connected with the lug plate through the hinged bolt, and the lug plate is welded with the top plate.
The anti-seismic working mechanism for installing the swinging shear wall provided by the invention is as follows: under the action of a horizontal earthquake, when the lateral force is small, the friction component is not excited, and the large initial lateral stiffness of the shear wall is provided; along with the increase of the lateral force, the friction component is excited, the shear wall is protected and is used as a rigid body to swing, the friction component absorbs seismic energy, and meanwhile, the disc spring is compressed to provide resetting capability; when the lateral deformation of the structure is further increased, the steel plate bolt abuts against the end part of the long circular hole, the connecting piece does not provide extra deformation, and the connecting piece and the shear wall work together to exert stronger bearing capacity and prevent the structure from collapsing.
Preferably, the inner steel plate is provided with a long round hole, and the length of the long round hole can be determined according to the limit value of the swinging displacement of the shear wall.
Preferably, the friction assembly adjusts the pressure level of the inner steel plate and the outer steel plate by changing the torque of the steel plate bolt, and controls the friction excitation force, so that the initial lateral stiffness of the shear wall is controlled.
Preferably, the disc spring assembly adjusts the self-resetting performance of the connecting piece by changing the initial pre-pressure of the composite combined disc spring.
Preferably, the anchor rod is hinged with the top plate, so that the self-locking phenomenon of the anchor rod and the anchor plate caused by the deviation of the top plate from the horizontal direction can be avoided.
Preferably, the steel plate bolts, the hinge bolts and the lining plate bolts are all high-strength bolts.
The invention has the beneficial effects that:
(1) this shear force wall from restoring to throne friction power consumption connecting piece sways, with power consumption and from restoring to throne the function integration: the disc spring component provides the self-resetting capability of the structure after the earthquake, reduces or eliminates the residual deformation after the earthquake, lightens the repair work after the earthquake and increases the earthquake-resistant toughness; compared with the existing prestress self-resetting technology of the swing shear wall, the design and construction complexity problems of the prestressed tendons can be avoided.
(2) The device provides energy consumption capability by the friction assembly, and converts kinetic energy of the shear wall under the action of an earthquake into device friction, so that the effect of protecting the structure is achieved, and the earthquake resistance of the structure is enhanced.
(3) The anchor rod of the disc spring assembly is hinged with the top plate, so that the self-locking phenomenon of the anchor rod and the anchor plate caused by the fact that the top plate cannot be kept horizontal in actual engineering is avoided, and the problem of failure of the device in the prior art is solved.
(4) The friction exciting force of the device, the stroke (the length of the long round hole) of the friction plate and the rigidity of the disc spring are all adjustable, and the parameters can be reasonably configured according to the anti-seismic requirement of the structure.
(5) The device has ingenious component structure, and can be prefabricated in factories and assembled on site. After an earthquake, components such as the friction plate, the friction material and the like can be detached and replaced according to the actual damage condition, so that the repair cost and time are reduced.
Drawings
Fig. 1 is a perspective view of the present invention.
FIG. 2 is a detail view of the friction assembly of the present invention
Fig. 3 is a detail illustration of the hinge construction of the present invention.
Fig. 4 is a schematic view of a rocking shear wall structure according to an embodiment of the present invention.
FIG. 5(a) is an elevation view of an alternative connection configuration to a shear wall in an embodiment of the present invention.
FIG. 5(b) is a side view of an alternative connection configuration to a shear wall in an embodiment of the present invention.
Fig. 6(a) is a schematic view of the working principle of the present invention, i.e., a pressed state.
Fig. 6(b) is a schematic diagram of the working principle of the invention-the tension state.
Fig. 7 is an F-S plot of an ideal state of a rocking shear wall installed in accordance with the present invention.
In the figure: 1. an inner steel plate; 2. an outer steel plate; 3. a friction material; 4. a steel plate bolt; 5. a composite combined disc spring; 6. an anchor rod; 7. an anchor plate; 8. a limiting plate; 9. a limit nut; 10. a top plate; 11. an ear plate; 12. a hinge bolt; 13. lining plate bolts; 14. a liner plate; 20. an orthogonal laminated wood shear wall body; 21. self-resetting friction energy-consuming connecting pieces; 22. a foundation; 23. an overhanging steel plate; 24. and (4) bolts.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1:
as shown in fig. 1 to 3, the present invention comprises a friction assembly and a disc spring assembly mounted on the friction assembly, wherein:
friction subassembly includes interior steel sheet 1, outer steel sheet 2, friction material 3, steel sheet bolt 4, welt bolt 13 and welt 14, wherein:
the inner steel plate 1 and the outer steel plate 2 are connected by steel plate bolts 4, and friction materials 3 are embedded between the inner steel plate 2 and the outer steel plate 2;
the outer steel plate 2 is connected with a lining plate 14 through a lining plate bolt 13, and the lining plate 14 is welded with the top plate 10;
dish spring subassembly includes compound combination dish spring 5, stock 6, anchor slab 7, limiting plate 8, stop nut 9, roof 10, otic placode 11 and articulated bolt 12, wherein:
the compound combination dish spring 5 is fixed by stock 6, limiting plate 8 and stop nut 9, penetrates upper and lower anchor slab 7, wherein:
the inner aperture of the limiting plate 8 is required to be smaller than the outer diameter of the limiting nut 9;
the inner aperture of the anchor plate 7 is larger than the outer diameter of the limiting nut 9 and smaller than the outer diameter of the limiting plate 8;
the anchor rod 6 is connected with an ear plate 11 through a hinge bolt 12, and the ear plate 11 is welded with a top plate 10.
The anti-seismic working mechanism for installing the swinging shear wall provided by the invention is as follows: under the action of a horizontal earthquake, when the lateral force is small, the friction component is not excited, and the large initial lateral stiffness of the shear wall is provided; along with the increase of the lateral force, the friction component is excited, the shear wall is protected and is used as a rigid body to swing, the friction component absorbs seismic energy, and meanwhile, the disc spring is compressed to provide resetting capability; when the lateral deformation of the structure is further increased, the steel plate bolts 4 abut against the end part of the long round hole, the connecting piece does not provide extra deformation, and the connecting piece and the shear wall work together to exert stronger bearing capacity and prevent the structure from collapsing.
Preferably, the inner steel plate 1 is provided with a long round hole, and the length of the long round hole can be determined according to the displacement limit value of the swinging of the shear wall.
Preferably, the friction assembly adjusts the pressure level of the inner steel plate 2 and the outer steel plate 2 by changing the torque of the steel plate bolts 4, and controls the friction excitation force, so as to control the initial lateral stiffness of the shear wall.
Preferably, the disc spring assembly adjusts the self-resetting performance of the connecting piece by changing the initial pre-pressure of the composite combined disc spring 5.
Preferably, the anchor rod 6 is hinged to the top plate 10, so that the self-locking phenomenon of the anchor rod 6 and the anchor plate 7 caused by the deviation of the top plate 10 from the horizontal can be avoided.
Preferably, the steel plate bolts 4, the hinge bolts 12 and the lining plate bolts 13 are all high-strength bolts 24.
The invention has the beneficial effects that:
(1) this shear force wall from restoring to throne friction power consumption connecting piece sways, with power consumption and from restoring to throne the function integration: the disc spring component provides the self-resetting capability of the structure after the earthquake, reduces or eliminates the residual deformation after the earthquake, lightens the repair work after the earthquake and increases the earthquake-resistant toughness; compared with the existing prestress self-resetting technology of the swing shear wall, the design and construction complexity problems of the prestressed tendons can be avoided.
(2) The device provides energy consumption capability by the friction assembly, and converts kinetic energy of the shear wall under the action of an earthquake into device friction, so that the effect of protecting the structure is achieved, and the earthquake resistance of the structure is enhanced.
(3) The anchor rod 6 of the disc spring assembly is hinged to the top plate 10, so that the self-locking phenomenon of the anchor rod 6 and the anchor plate 7 caused by the fact that the top plate 10 cannot be kept horizontal in actual engineering is avoided, and the problem of failure of the device in the prior art is solved.
(4) The friction exciting force of the device, the stroke (long circular hole length) of the friction plate and the rigidity of the disc spring are all adjustable, and the parameters can be reasonably configured according to the anti-seismic requirement of the structure.
(5) The device has ingenious component structure, and can be prefabricated in factories and assembled on site. After the earthquake, the components such as the friction plate, the friction material 3 and the like can be detached and replaced according to the actual damage condition, so that the repair cost and time are reduced.
Example 2:
as shown in fig. 4, the self-resetting friction energy-consuming connector is applied to the toe part of an orthogonal laminated wood shear wall, and the alternative connection mode of the shear wall and the invention is shown in fig. 5(a) and 5(b), and comprises an overhanging steel plate 23 and a bolt 24.
The self-resetting friction energy-consumption connecting piece comprises an inner steel plate 1, an outer steel plate 2, a friction material 3, a steel plate bolt 4, a lining plate 14, a composite combined disc spring 5, an anchor rod 6, an anchor plate 7, a limiting plate 8, a limiting nut 9, a top plate 10, an ear plate 11, a hinge bolt 12 and a lining plate bolt 13.
According to the expected deformation range of the orthogonal laminated wood shear wall, the length of the long round hole is set to be 100mm, the inner plate of the friction assembly is made of high-strength steel with the yield strength of 1200MPa, the outer plate is made of low-carbon steel with the yield strength of 350MPa, the inner plate and the outer plate are connected through 8.8-grade M16 high-strength bolts 24, and the friction material 3 is made of an asbestos-free organic material NAO-780.
According to the motion law of the orthogonal laminated wood shear wall, when one side wall toe is pressed, the device is driven to be pressed, as shown in fig. 6(a), the top plate 10, the anchor rod 6 and the limiting nut 9 simultaneously move downwards, and therefore the composite combined disc spring 5 is driven to be pressed to generate restoring force. Meanwhile, the toe on the other side is pulled to drive the device to be pulled, as shown in fig. 6(b), the top plate 10, the anchor rod 6 and the limiting nut 9 move upwards at the same time, and the combined disc spring is driven to generate restoring force under the pressure.
When the shear wall is subjected to small lateral seismic force, the friction component of the device is not excited, and necessary initial rigidity is provided for the shear wall. When the friction assembly is excited, friction energy consumption is generated, and the wall structure is protected from being damaged by an earthquake. When the lateral displacement of the wall body is overlarge, the steel plate nut reaches the edge of the long circular hole, the device does not generate displacement any more, and the device and the wall body resist the lateral force together to prevent the structure from collapsing. When the lateral force of the earthquake stops acting, the restoring force generated by the disc spring assembly can restore the wall body to the initial position, and the residual deformation is eliminated. The force-displacement curve of the swinging shear wall provided by the invention under the action of an earthquake is shown in fig. 7.
The above description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the embodiments of the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and scope of the present invention should be included in the protection scope of the present invention.
The invention can be widely applied to occasions of civil engineering energy dissipation and shock absorption and shockproof toughness structures with recoverable functions.
Claims (6)
1. The utility model provides a sway shear force wall from restoring to throne friction power consumption connecting piece, includes friction pack to and install the dish spring subassembly on friction pack, its characterized in that, wherein:
friction subassembly includes interior steel sheet (1), outer steel sheet (2), friction material (3), steel sheet bolt (4), welt bolt (13) and welt (14), wherein:
the inner steel plate (1) and the outer steel plate (2) are connected by steel plate bolts (4), and friction materials (3) are embedded between the inner steel plate and the outer steel plate (2);
the outer steel plate (2) is connected with a lining plate (14) through a lining plate bolt (13), and the lining plate (14) is welded with the top plate (10);
dish spring subassembly includes compound combination dish spring (5), stock (6), anchor slab (7), limiting plate (8), stop nut (9), roof (10), otic placode (11) and articulated bolt (12), wherein:
compound combination dish spring (5) are fixed by stock (6), limiting plate (8) and stop nut (9), penetrate anchor slab (7) from top to bottom, wherein:
the inner aperture of the limiting plate (8) is required to be smaller than the outer diameter of the limiting nut (9);
the inner aperture of the anchor plate (7) is larger than the outer diameter of the limiting nut (9) and smaller than the outer diameter of the limiting plate (8);
the anchor rod (6) is connected with the ear plate (11) through a hinged bolt (12), and the ear plate (11) is welded with the top plate (10).
2. A self-resetting friction energy-consumption connecting piece of a swinging shear wall according to claim 1, characterized in that the inner steel plate (1) is provided with a long round hole, and the length of the long round hole can be determined according to the swinging displacement limit of the shear wall.
3. A rocking shear wall self-resetting friction energy dissipating connector according to claim 1, wherein the friction assembly adjusts the pressure level of the inner and outer steel plates (2) by changing the torque of the steel plate bolts (4), controlling the friction excitation force, and thus controlling the initial lateral stiffness of the shear wall.
4. A rocking shear wall self-resetting frictional energy-dissipating connecting piece according to claim 1, wherein the disc spring assembly adjusts the self-resetting performance of the connecting piece by changing the initial pre-stress of the composite combined disc spring (5).
5. A self-resetting friction energy-consuming connecting piece of a swinging shear wall according to claim 1, characterized in that the anchor rod (6) is hinged with the top plate (10), so that the self-locking phenomenon of the anchor rod (6) and the anchor plate (7) caused by the deviation of the top plate (10) from the horizontal can be avoided.
6. A self-resetting friction energy-consumption connecting piece of a swinging shear wall according to claim 1, characterized in that high-strength bolts (24) are adopted for the steel plate bolts (4), the hinge bolts (12) and the lining plate bolts (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210404693.5A CN114876263A (en) | 2022-04-18 | 2022-04-18 | Self-reset friction energy dissipation connecting piece of swinging shear wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210404693.5A CN114876263A (en) | 2022-04-18 | 2022-04-18 | Self-reset friction energy dissipation connecting piece of swinging shear wall |
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| CN106639030A (en) * | 2017-02-06 | 2017-05-10 | 同济大学 | Cross laminated timber (CLT) double-board seismic wall with swinging energy-dissipation function |
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| CN111173164A (en) * | 2020-02-06 | 2020-05-19 | 深圳大学 | Swinging type shear wall with replaceable self-resetting and energy consumption device |
| CN211690760U (en) * | 2019-11-25 | 2020-10-16 | 海南大学 | Beam-column self-resetting energy consumption node |
| CN112240057A (en) * | 2020-11-19 | 2021-01-19 | 扬州大学 | Self-reset friction energy dissipation steel frame node based on pre-pressed disc spring |
| CN112482603A (en) * | 2020-11-04 | 2021-03-12 | 长安大学 | Self-resetting reinforced concrete shear wall |
| CN113293893A (en) * | 2021-06-22 | 2021-08-24 | 同济大学 | Energy-dissipation orthogonal laminated wood double-limb shear wall structure capable of achieving self-resetting |
| CN113530338A (en) * | 2021-08-02 | 2021-10-22 | 重庆大学 | Self-resetting concrete column with additional replaceable damper and steel pipe concrete structure |
| CN113605559A (en) * | 2021-09-03 | 2021-11-05 | 清华大学 | Assembled self-resetting reinforced concrete shear wall |
-
2022
- 2022-04-18 CN CN202210404693.5A patent/CN114876263A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639030A (en) * | 2017-02-06 | 2017-05-10 | 同济大学 | Cross laminated timber (CLT) double-board seismic wall with swinging energy-dissipation function |
| KR20180135656A (en) * | 2017-06-13 | 2018-12-21 | 박상태 | Aseismatic Reinforcement Steel Frame with Anchor Plate and Aseismatic Reinforcement Method using thereof |
| CN107542177A (en) * | 2017-09-21 | 2018-01-05 | 长安大学 | A kind of Self-resetting energy consumer |
| CN109914593A (en) * | 2019-02-21 | 2019-06-21 | 海南大学 | A kind of Self-resetting beam column friction energy-dissipating node structure and its construction method |
| CN109914640A (en) * | 2019-03-22 | 2019-06-21 | 西安建筑科技大学 | It is a kind of can Self-resetting energy consumption the more plate shear walls of orthogonal laminated wood |
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| CN113530338A (en) * | 2021-08-02 | 2021-10-22 | 重庆大学 | Self-resetting concrete column with additional replaceable damper and steel pipe concrete structure |
| CN113605559A (en) * | 2021-09-03 | 2021-11-05 | 清华大学 | Assembled self-resetting reinforced concrete shear wall |
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