CN111456267A - Bidirectional coupling shear damper and shock absorption frame structure system - Google Patents
Bidirectional coupling shear damper and shock absorption frame structure system Download PDFInfo
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- CN111456267A CN111456267A CN202010251706.0A CN202010251706A CN111456267A CN 111456267 A CN111456267 A CN 111456267A CN 202010251706 A CN202010251706 A CN 202010251706A CN 111456267 A CN111456267 A CN 111456267A
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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
- 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
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Abstract
The invention relates to the field of building construction, and provides a bidirectional coupling shear damper and damping frame structure system. The damper comprises an upper end plate, a lower end plate and an energy dissipation assembly arranged between the upper end plate and the lower end plate, wherein the energy dissipation assembly comprises an energy dissipation pipe fixed on the upper end plate and a fixed pipe fixed on the lower end plate; the length of power consumption pipe is greater than the length of fixed pipe, and the power consumption pipe inserts in the fixed pipe in the one end slidable of upper end plate, is formed with the smooth layer between fixed pipe and the power consumption pipe, and the smooth layer pastes to cover to be fixed on the inner wall of fixed pipe. The structural system includes a body frame structure, a first filled wallboard, a second filled wallboard, and a bi-directionally coupled shear damper. The invention not only avoids buckling damage or breaking of the energy dissipation pipe, but also can realize coordination of deformation damage mechanisms among the main body frame structure, the damper, the first filling wallboard and the second filling wallboard, and obviously reduces the damage of the first filling wallboard and the second filling wallboard under the action of a bidirectional coupling earthquake.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a bidirectional coupling shear damper and shock absorption frame structure system.
Background
The frame structure has the advantages of flexible plane arrangement, large indoor space and the like, and is widely applied to buildings such as multi-storey houses, factory buildings, shops, office buildings, hospitals, teaching buildings, hotels and the like. Infill walls are typically built within the frame structure for functional partitioning and exterior containment.
A large number of actual earthquake records show that most of frame structures are not collapsed after an earthquake, but the filler walls built in the frame structures are seriously damaged, so that the buildings need to consume a large amount of manpower and material resources for repairing, otherwise, the buildings cannot be continuously put into use. The 'three-level two-stage' design method in the building earthquake-resistant design specification indicates that the main index for controlling deformation checking calculation under the action of a structure which is frequently subjected to earthquakes is the displacement angle limit value between the elastic layers of the structure, and the value of the limit value is mainly taken to ensure that the frame structure is in an elastic state. However, the crack displacement angle of the infilled wall is far less than the limit value, so that when the main structure is in elasticity during an earthquake, the infilled wall is cracked seriously, namely, the main reason for causing serious damage to the infilled wall is that the damage mechanism of the frame structure and the infilled wall is not coordinated.
In order to improve the anti-seismic performance, a damper is arranged in the frame structure. However, the existing damper and shock absorption structure only considers the bearing capacity, rigidity and energy consumption capacity of the damper in the main shaft direction plane. However, the actual seismic action often does not occur along the principal axis, but rather exhibits the deformation characteristic of two-way coupling. Therefore, the existing metal shear damper is difficult to adapt to bidirectional coupling deformation, and cannot provide stable and reliable bearing capacity, rigidity and energy consumption capacity under the bidirectional coupling deformation. At present, when a shear damper shock absorption frame structure only considering the mechanical behavior of a damper in a main shaft direction surface presents a bidirectional coupling deformation characteristic under the action of an actual earthquake, the shock resistance of the structure may be lower than the design expected level.
At present, under the action of a horizontal reciprocating earthquake, an energy-consuming steel plate of a common metal shear damper in building engineering can be subjected to tension besides shearing force, and the phenomena of out-of-plane buckling or weld joint breaking and the like occur under the action of repeated tension and compression, so that the earthquake resistance of the damper is lower than the designed expected level, the safety of a filler wall under the action of the earthquake is difficult to ensure, and the sustainability of the using function of a building after the earthquake is seriously threatened.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art. Therefore, the invention provides a bidirectional coupling shear damper without bearing tension and compression effects, so as to realize stable rigidity, bearing capacity and energy consumption capacity under bidirectional coupling shear deformation at any angle.
The invention further provides a shock-absorbing frame structure system.
According to the embodiment of the first aspect of the invention, the bidirectional coupling shear damper comprises an upper end plate, a lower end plate and an energy dissipation assembly arranged between the upper end plate and the lower end plate, wherein the energy dissipation assembly comprises an energy dissipation pipe fixed on the upper end plate and a fixed pipe fixed on the lower end plate; the length of the energy dissipation pipe is greater than that of the fixed pipe, one end, opposite to the upper end plate, of the energy dissipation pipe is slidably inserted into the fixed pipe, a smooth layer is formed between the fixed pipe and the energy dissipation pipe, and the smooth layer is attached and fixed to the inner wall of the fixed pipe.
According to the bidirectional coupling shear damper provided by the embodiment of the invention, under the action of an earthquake, when the upper end plate and the lower end plate move relatively in the horizontal direction, the lower end of the energy consumption pipe can slide along the axial direction of the fixed pipe without bearing the tension and compression action, so that the buckling damage or the tensile fracture of the energy consumption pipe can be avoided, and the rigidity, the bearing capacity and the stability of the energy consumption capacity of the damper can be further ensured.
In addition, the bidirectional coupling shear damper according to the embodiment of the invention may further have the following additional technical features:
according to one embodiment of the invention, the energy dissipation tube is filled with an energy dissipation and shock absorption core material.
According to one embodiment of the invention, the energy and shock absorbing core material is an aluminum foam block, a rubber block or a lead block.
According to one embodiment of the present invention, the fixing tube and the energy dissipation tube are made of a metal material, and the material strength of the fixing tube is greater than that of the energy dissipation tube.
According to one embodiment of the invention, the smooth layer is applied to the inner wall of the fixing tube by an adhesive.
According to one embodiment of the invention, the projected shapes of the energy dissipation pipe and the fixed pipe in the horizontal plane are circular, oval or polygonal.
According to one embodiment of the invention, the number of the energy consumption components is multiple, and the energy consumption components are sequentially arranged at intervals.
According to the second aspect of the invention, the shock absorbing frame structure system comprises a main body frame structure and the above-mentioned bidirectional coupling shear damper, wherein the main body frame structure forms a plurality of sub-frames, a part of the sub-frames are provided with first filling wall plates, and the other part of the sub-frames are provided with second filling wall plates; the bottoms of the first filling wallboard and the second filling wallboard are respectively fixed on the frame beams at the bottoms of the corresponding sub-frames; first gaps are formed between the top and the left and right sides of the first filling wallboard and the corresponding sub-frames, and first flexible filling layers are filled in the first gaps; second gaps are formed between the top and the left and right sides of the second filling wallboard and the corresponding sub-frames, and second flexible filling layers are filled in the second gaps; the bi-directional coupled shear damper is secured between the top of the second infill panel and the corresponding frame beam at the top of the sub-frame.
According to the shock-absorbing frame structure system provided by the embodiment of the invention, the bidirectional coupling shear damper is arranged between the second filling wallboard and the corresponding sub-frame, and a gap is formed between the first filling wallboard and the corresponding sub-frame, so that the coordination of deformation and damage mechanisms among the main body frame structure, the damper and the enclosure system, namely the first filling wallboard and the second filling wallboard is realized, and the damage of the first filling wallboard and the second filling wallboard under the action of a bidirectional coupling earthquake is obviously reduced.
According to one embodiment of the invention, the top of the second infill panel is provided with a groove, the bi-directionally coupled shear damper is provided within the groove, the upper end plate is secured to the corresponding frame beam at the top of the sub-frame, and the lower end plate is secured to the bottom surface of the groove.
According to one embodiment of the invention, the first and second filled wall panels are prefabricated reinforced concrete walls, prefabricated aerated concrete walls or cast-in-place reinforced concrete walls.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the energy dissipation pipe of the bidirectional coupling shear damper is constrained by the smooth layer and the fixed pipe only at one end, namely the lower end, of the upper end plate in the horizontal direction, so that under the action of an earthquake, when the upper end plate and the lower end plate move relatively in the horizontal direction, the lower end of the energy dissipation pipe can slide along the axial direction of the fixed pipe and does not bear the action of tension and compression, the buckling damage or the tensile fracture of the energy dissipation pipe can be avoided, and the rigidity, the bearing capacity and the stability of the energy dissipation capacity of the damper can be further ensured.
According to the damping frame structure system, the bidirectional coupling shear damper is arranged between the second filling wallboard and the corresponding sub-frame, and a gap is formed between the first filling wallboard and the corresponding sub-frame and between the second filling wallboard and the corresponding sub-frame, so that the coordination of deformation and damage mechanisms among the main body frame structure, the damper and the enclosure system, namely the first filling wallboard and the second filling wallboard, is realized, and the damage of the first filling wallboard and the second filling wallboard under the bidirectional coupling earthquake action is remarkably reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a bi-directional coupled shear damper according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an energy dissipating assembly provided by an embodiment of the present invention;
FIG. 3 is another schematic cross-sectional view of an energy dissipating assembly provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a shock absorbing frame structure system according to an embodiment of the present invention;
FIG. 5 is a schematic side view of a shock absorbing frame architecture according to an embodiment of the present invention;
FIG. 6 is a schematic view of the installation of a first infill wall panel provided by an embodiment of the present invention;
figure 7 is a schematic view of the installation of a second infill wall panel provided by an embodiment of the present invention.
Reference numerals:
1. an upper end plate; 2. a lower end plate; 3.1, energy consumption pipes; 3.2, fixing the tube;
3.3, a smooth layer; 3.4, energy-consuming and shock-absorbing core materials; 4. a main body frame structure;
4.1, a subframe; 5. a first infill panel; 6. a second infill panel; 6.1, grooves;
7. a first flexible filler layer; 8. a second flexible filler layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Referring to fig. 1 to 3, an embodiment of the present invention provides a bidirectional coupling shear damper, which includes an upper end plate 1, a lower end plate 2, and an energy dissipation assembly disposed between the upper end plate 1 and the lower end plate 2, where the energy dissipation assembly includes an energy dissipation tube 3.1 fixed to the upper end plate 1 and a fixing tube 3.2 fixed to the lower end plate 2; the length of power consumption pipe 3.1 is greater than the length of fixed pipe 3.2, and the one end slidable of power consumption pipe 3.1 back to upper end plate 1 is inserted in fixed pipe 3.2, is formed with smooth layer 3.3 between fixed pipe 3.2 and power consumption pipe 3.1, and smooth layer 3.3 pastes to cover and fixes on the inner wall of fixed pipe 3.2.
Because the end of the energy dissipation pipe 3.1, which is opposite to the upper end plate 1, i.e. the lower end, is only restrained by the smooth layer 3.3 and the fixed pipe 3.2 in the horizontal direction, under the action of an earthquake, when the upper end plate 1 and the lower end plate 2 move relatively in the horizontal direction, the lower end of the energy dissipation pipe 3.1 can slide along the axial direction of the fixed pipe 3.2 without bearing the action of tension and compression, so that buckling damage or snapping of the energy dissipation pipe 3.1 can be avoided, and the rigidity, the bearing capacity and the stability of the energy dissipation capacity of the damper can be further ensured.
As shown in fig. 3, in order to further improve the energy dissipation capability of the energy dissipation pipe 3.1, an energy dissipation and vibration reduction core material 3.4 is filled in the energy dissipation pipe 3.1. The material of the energy dissipation and shock absorption core material 3.4 can be but not limited to a foamed aluminum block, a rubber block or a lead block, other materials capable of achieving energy dissipation and shock absorption can be used, and which type of shock absorption material is specifically selected can be determined according to the rigidity, bearing capacity and energy dissipation requirements of the damper.
In addition, considering that the energy dissipation pipe 3.1 applies horizontal pressure to the fixed pipe 3.2 through the smooth layer 3.3 when the upper end plate 1 and the lower end plate 2 move relatively in the horizontal direction, the energy dissipation pipe 3.1 and the fixed pipe 3.2 are both made of metal materials, and the material strength of the fixed pipe 3.2 is greater than that of the energy dissipation pipe 3.1. for example, the energy dissipation pipe 3.1 and the fixed pipe 3.2 can be made of steel materials, and the selected steel material type of the energy dissipation pipe 3.1 and the fixed pipe 3.2 can be determined according to the rigidity, the bearing capacity and the energy dissipation requirement of the damper, for example, Q235 steel, L YS100 steel can be selected for the energy dissipation pipe 3.1, and Q345 steel can be selected for the fixed pipe 3.2.
Further, the smooth layer 3.3 is attached to the inner wall of the fixing tube 3.2 by an adhesive. Of course, the smooth layer 3.3 can also be fixed to the fixed tube 3.2 in other ways. The material of the smooth layer 3.3 is a low friction coefficient material, such as polytetrafluoroethylene.
In addition, in order to ensure that the energy dissipation pipe 3.1 has stable rigidity, bearing capacity and energy dissipation capacity under bidirectional coupling shear deformation at any angle, the projection shapes of the energy dissipation pipe 3.1 and the fixed pipe 3.2 on the horizontal plane are preferably circular, oval or polygonal. At this time, the projection shape of the smooth layer 3.3 arranged between the energy consumption tube 3.1 and the fixed tube 3.2 on the horizontal plane is the same as the projection shape of the energy consumption tube 3.1 and the fixed tube 3.2.
It should be noted that the number of energy dissipation assemblies between the upper end plate 1 and the lower end plate 2 may be multiple, and multiple energy dissipation assemblies are sequentially arranged at intervals. The number and location of dissipative components can be determined from the stiffness, load bearing capacity and dissipative requirements of the damper. In addition, one end of the energy dissipation pipe 3.1, which is back to the lower end plate 2, namely the upper end of the energy dissipation pipe 3.1, can be directly welded on the upper end plate 1, of course, a flange plate can be constructed on the outer peripheral wall of the energy dissipation pipe 3.1, and the flange plate of the energy dissipation pipe 3.1 can be fixed on the upper end plate 1 by using bolts. Similarly, the end of the fixed tube 3.2 opposite to the upper end plate 1, i.e. the lower end of the fixed tube 3.2, may be directly welded to the lower end plate 2, or of course, a flange may be constructed on the outer peripheral wall of the fixed tube 3.2, and the flange of the fixed tube 3.2 may be fixed to the lower end plate 2 by bolts.
The following illustrates the selection of the components in the bidirectional coupling shear damper according to the embodiment of the present invention:
for example, as shown in fig. 1 and 2, two energy dissipation components are disposed between the upper end plate 1 and the lower end plate 2, the projection shapes of the energy dissipation tube 3.1 and the fixed tube 3.2 on the horizontal plane are circular, and at this time, the projection shape of the smooth layer 3.3 between the energy dissipation tube 3.1 and the fixed tube 3.2 on the horizontal plane is also circular, wherein the upper end plate 1 and the lower end plate 2 are made of steel plates, the material of the energy dissipation tube 3.1 is L YS100 steel, the material of the fixed tube 3.2 is Q345, the wall thickness of the fixed tube 3.2 is greater than that of the energy dissipation tube 3.1, and the material of the sliding layer is a teflon plate with a friction coefficient of 0.04.
During installation: firstly, welding the upper end of an energy dissipation pipe 3.1 on an upper end plate 1, and welding the lower end of a fixed pipe 3.2 on a lower end plate 2; then, uniformly coating a layer of adhesive on the outer wall of the tubular smooth layer 3.3, and inserting the tubular smooth layer 3.3 into the fixed pipe 3.2; then, pressing the inner wall of the smooth layer 3.3 to make the smooth layer 3.3 tightly attached to the fixed tube 3.2; finally, the lower end of the dissipative tube 3.1 is inserted into the tubular smoothing layer 3.3. Therefore, under the action of an earthquake, when the upper end plate 1 and the lower end plate 2 move relatively in the horizontal direction, the lower end of the energy consumption pipe 3.1 can slide along the axial direction of the fixed pipe 3.2 without bearing the tension and compression action, so that buckling damage or snapping of the energy consumption pipe 3.1 can be avoided, and the rigidity, the bearing capacity and the stability of the energy consumption capacity of the damper can be further ensured.
For another example, as shown in fig. 3, the projection shapes of the energy consumption tube 3.1 and the fixed tube 3.2 on the horizontal plane are squares, and at this time, the projection shape of the smooth layer 3.3 located between the energy consumption tube 3.1 and the fixed tube 3.2 on the horizontal plane is also squares. The wall thickness of the fixed pipe 3.2 is larger than that of the energy dissipation pipe 3.1, and the energy dissipation pipe 3.1 is filled with an energy dissipation core material 3.4, for example, the energy dissipation core material 3.4 can be made of foamed aluminum-polyurethane composite material. The foamed aluminum-polyurethane composite material has strong deformability and energy consumption capability, and can further improve the energy dissipation and shock absorption performance of the damper. For ease of installation, the smooth layer 3.3 may be formed from four sheets of teflon sheet material.
During installation: firstly, welding the upper end of an energy dissipation pipe 3.1 on an upper end plate 1, and welding the lower end of a fixed pipe 3.2 on a lower end plate 2; then, coating a layer of adhesive on the surfaces of the four polytetrafluoroethylene plates, and sequentially attaching the four polytetrafluoroethylene plates to the four side walls of the fixed pipe 3.2; then, pressing the polytetrafluoroethylene plate to tightly attach the polytetrafluoroethylene plate to the fixed pipe 3.2; and finally, filling an energy dissipation and shock absorption core material 3.4 in the energy dissipation tube 3.1, and inserting the lower end of the energy dissipation tube 3.1 into a rectangular space surrounded by the smooth layer 3.3.
Therefore, under the action of an earthquake, when the upper end plate 1 and the lower end plate 2 move relatively in the horizontal direction, the lower end of the energy consumption pipe 3.1 can slide along the axial direction of the fixed pipe 3.2 without bearing the tension and compression action, so that buckling damage or snapping of the energy consumption pipe 3.1 can be avoided, and the rigidity, the bearing capacity and the stability of the energy consumption capacity of the damper can be further ensured.
Further, as shown in fig. 4 to 7, the embodiment of the present invention further provides a shock absorbing frame structure system, which includes a main frame structure 4 and the above-mentioned bidirectional coupling shear damper, the main frame structure 4 forms a plurality of sub-frames 4.1, a first filled wall plate 5 is disposed in one part of the sub-frames 4.1, a second filled wall plate 6 is disposed in the other part of the sub-frames 4.1, and the bottoms of the first filled wall plate 5 and the second filled wall plate 6 are respectively fixed on the frame beams at the bottom of the corresponding sub-frames 4.1; first gaps are formed between the top and the left and right sides of the first filling wallboard 5 and the corresponding sub-frames 4.1, and first flexible filling layers 7 are filled in the first gaps; a second gap is formed between the top and the left and right sides of the second filling wallboard 6 and the corresponding sub-frame 4.1, and a second flexible filling layer 8 is filled in the second gap; the double-coupling shear damper is fixed between the top of the second infill wall panel 6 and the frame beams at the top of the corresponding sub-frame 4.1.
As shown in fig. 4 and 5, the main frame structure 4 is a space structure formed by frame beams and frame columns, two frame beams and two frame columns are arranged to form a sub-frame 4.1, a first filling wall plate 5 is arranged in one part of the sub-frame 4.1, and a second filling wall plate 6 is arranged in the other part of the sub-frame 4.1.
The main frame structure 4 can be a cast-in-place reinforced concrete frame structure, a prefabricated reinforced concrete frame structure or a steel frame structure; the first filling wall plate 5 and the second filling wall plate 6 are prefabricated reinforced concrete walls, prefabricated aerated concrete walls or cast-in-place reinforced concrete walls; the first flexible filling layer 7 and the second flexible filling layer 8 are made of asbestos layers or flame-retardant foaming materials, so that sound insulation and heat insulation effects are achieved. The bottom of the first and second infill wall panels 5, 6 may be secured to the corresponding sub-frame 4.1 by a steel sleeve respectively.
As shown in fig. 7, in order to avoid an excessive gap between the top of the second infill wall panel 6 and the corresponding sub-frame 4.1, the top of the second infill wall panel 6 is provided with a groove 6.1, a bi-directionally coupled shear damper is provided in the groove 6.1, the upper end plate 1 is fixed to the frame beam at the top of the corresponding sub-frame 4.1, and the lower end plate 2 is fixed to the bottom surface of the groove 6.1. The upper end plate 1 is fixed on a frame beam at the top of the corresponding sub-frame 4.1 through embedded bolts, and the lower end plate 2 is fixed on the bottom surface of the corresponding groove 6.1 through embedded bolts.
Therefore, under the action of earthquake, when the two-way coupling horizontal relative shear deformation occurs between the layers of the main body frame structure 4, the horizontal relative shear deformation between the upper end plate 1 and the lower end plate 2 of the two-way coupling shear damper is the same as the interlayer relative deformation of the main body frame structure 4, and the main body frame structure 4 and the two-way coupling shear damper enter a cooperative working state. Meanwhile, the lower end of the energy dissipation pipe 3.1 slides along the axial direction of the fixed pipe 3.2, and the energy dissipation pipe 3.1 does not bear the tension and compression action, so that buckling damage or breaking of the energy dissipation pipe 3.1 is avoided, and the energy dissipation pipe 3.1 dissipates seismic energy through self deformation and yielding. In addition, because there is a gap between the first and second filler wall panels 5, 6 and the corresponding sub-frame 4.1, when the two-way coupling horizontal relative shear deformation occurs between the layers of the main frame structure 4, the shear deformation occurring in the first and second filler wall panels 5, 6 is minimal, thereby also avoiding the first and second filler wall panels 5, 6 from being damaged.
From the above, the damping frame structure system is provided with the bidirectional coupling shear damper between the second filled wallboard 6 and the corresponding sub-frame 4.1, and the first filled wallboard 5, the second filled wallboard 6 and the corresponding sub-frame 4.1 form a gap, so that the coordination of deformation and damage mechanisms among the main body frame structure 4, the damper and the enclosure system, namely the first filled wallboard 5 and the second filled wallboard 6 is realized, and the damage of the first filled wallboard 5 and the second filled wallboard 6 under the action of a bidirectional coupling earthquake is remarkably reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A bidirectional coupling shear damper is characterized by comprising an upper end plate, a lower end plate and an energy dissipation assembly arranged between the upper end plate and the lower end plate, wherein the energy dissipation assembly comprises an energy dissipation pipe fixed on the upper end plate and a fixed pipe fixed on the lower end plate; the length of the energy dissipation pipe is greater than that of the fixed pipe, one end, opposite to the upper end plate, of the energy dissipation pipe is slidably inserted into the fixed pipe, a smooth layer is formed between the fixed pipe and the energy dissipation pipe, and the smooth layer is attached and fixed to the inner wall of the fixed pipe.
2. The bi-directional coupling shear damper of claim 1, wherein the dissipative tube is filled with dissipative damping core material.
3. The bi-directional coupled shear damper of claim 2, wherein the dissipative vibration damping core material is an aluminum foam block, a rubber block, or a lead block.
4. The bi-directionally coupled shear damper of claim 1, wherein the stationary tube and the energy dissipating tube are both made of a metallic material, and wherein the material strength of the stationary tube is greater than the material strength of the energy dissipating tube.
5. The bi-directionally coupled shear damper of claim 1, wherein said smooth layer is applied to the inner wall of said stationary tube by an adhesive.
6. The bi-directionally coupled shear damper of claim 1, wherein a projected shape of the dissipative tube and the stationary tube in a horizontal plane is circular, elliptical or polygonal.
7. The bi-directionally coupled shear damper of claim 1, wherein said dissipative component is in a plurality, said plurality being sequentially spaced apart.
8. A shock absorbing frame construction system comprising a body frame construction and a bi-directionally coupled shear damper as claimed in any one of claims 1 to 7, said body frame construction forming a plurality of sub-frames, a portion of said sub-frames having a first filler wall panel disposed therein and another portion of said sub-frames having a second filler wall panel disposed therein; the bottoms of the first filling wallboard and the second filling wallboard are respectively fixed on the frame beams at the bottoms of the corresponding sub-frames; first gaps are formed between the top and the left and right sides of the first filling wallboard and the corresponding sub-frames, and first flexible filling layers are filled in the first gaps; second gaps are formed between the top and the left and right sides of the second filling wallboard and the corresponding sub-frames, and second flexible filling layers are filled in the second gaps; the bi-directional coupled shear damper is secured between the top of the second infill panel and the corresponding frame beam at the top of the sub-frame.
9. A shock absorbing frame construction system according to claim 8, wherein said second filled wall panel is provided with a recess at the top thereof, said bi-directionally coupled shear damper is provided in said recess, said upper end plate is secured to the corresponding frame rail at the top of said sub-frame, and said lower end plate is secured to the bottom surface of said recess.
10. The shock absorbing frame structure system of claim 8, wherein said first and second filled wall panels are prefabricated reinforced concrete walls, prefabricated aerated concrete walls, or cast-in-place reinforced concrete walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251706.0A CN111456267B (en) | 2020-04-01 | 2020-04-01 | Bidirectional coupling shear damper and shock absorption frame structure system |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113700138A (en) * | 2021-08-17 | 2021-11-26 | 东南大学 | Huge frame construction of recoverable function |
| CN114810939A (en) * | 2022-05-09 | 2022-07-29 | 云南电网有限责任公司电力科学研究院 | Electrical equipment damping device |
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| JP2012026255A (en) * | 2010-07-26 | 2012-02-09 | Tomoyasu Yutaka | Billiard type base isolation leg |
| CN103216022A (en) * | 2013-04-15 | 2013-07-24 | 同济大学 | Viscoelastic-mild steel shear-type combined energy consumer |
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| CN111456267B (en) | 2021-09-07 |
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