CN109653389B - Multistage control buckling damping energy dissipation supporting component - Google Patents
Multistage control buckling damping energy dissipation supporting component Download PDFInfo
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- CN109653389B CN109653389B CN201811453818.3A CN201811453818A CN109653389B CN 109653389 B CN109653389 B CN 109653389B CN 201811453818 A CN201811453818 A CN 201811453818A CN 109653389 B CN109653389 B CN 109653389B
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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 discloses a multi-stage buckling damping energy dissipation control supporting member, which solves the technical problem that an interlayer structure is damaged due to the fact that a large interlayer relative displacement is easy to generate in the conventional buckling-restrained supporting member. The invention comprises a steel outer ring pipe and a steel inner ring pipe which are concentrically arranged, wherein connecting rod pieces which correspond to each other are arranged on two sides of the outer wall of the steel outer ring pipe, the outer wall of the steel inner ring pipe and the inner wall of the steel outer ring pipe are fixedly connected through a steel inner ring pipe connecting steel column, a piston mechanism is arranged between the inner wall of the steel outer ring pipe and the outer wall of the steel inner ring pipe, and the piston mechanism and the steel inner ring pipe connecting steel column are correspondingly arranged and are positioned on the same axis with the connecting rod pieces. The invention has good secondary hysteresis energy consumption performance, can play the effect of a damper, can achieve the effects of multi-stage energy consumption and prevention of overlarge interlayer relative displacement, can solve the problem of overlarge deformation caused by rapid reduction of rigidity after yielding of the traditional buckling-restrained brace, and can be widely applied to structural seismic reinforcement, seismic design components and the like.
Description
Technical Field
The invention relates to the technical field of damping energy dissipation supports in building structures, in particular to a multi-stage buckling-controlled damping energy dissipation support member.
Background
In the design of a building structure or the improvement of anti-seismic reinforcement, a supporting member is a member which effectively improves the lateral stiffness of the structure, and the existing supporting member has the problem of compression buckling. Aiming at the problem of compressive buckling of the traditional common support member, a novel support member form of a buckling restrained support member is provided. Deformation spaces among the core yielding energy consumption unit, the external buckling constraint unit and the sliding mechanism unit of the common buckling-restrained brace component have high processing precision requirement and complex manufacturing process; the core yield energy consumption unit is made of steel with low yield point, depends on import and is restricted. Although the buckling-restrained brace members have high-efficiency anti-seismic performance and have been applied to multiple projects in recent years, the adopted buckling-restrained brace members have more rigidity reduction and generate overlarge relative displacement between layers when yielding, so that the structural damage caused by the overlarge relative displacement between the layers generated by the structure due to the overlarge rigidity reduction is obvious, particularly under the action of a large earthquake.
In addition, if the buckling damper with double clamping bolts (or double pistons) and double rings at the core is adopted, the inner ring and the outer ring are not easy to fix during installation, and the inner ring and the outer ring can generate relative displacement during use. Although the interlayer relative displacement of the damper is smaller than that of the traditional buckling-restrained brace component, the stress is still not on the same straight line, the support component formed by the damper can be failed if the stress is light, and the support component can be damaged if the stress is heavy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a multi-stage buckling-controlled damping energy-dissipation supporting member, which solves the technical problem that the conventional buckling-restrained supporting member is easy to generate larger interlayer relative displacement to cause interlayer structure damage.
The technical scheme of the invention is realized as follows: the utility model provides a multistage control bucking damping energy dissipation supporting component, includes the outer ring canal of steel and the steel inner ring canal that set up with one heart, the outer wall both sides of the outer ring canal of steel are provided with the connection member that corresponds each other respectively, and the outer wall of steel inner ring canal passes through steel inner ring union coupling steel column fixed connection with the inner wall of the outer ring canal of steel, be provided with between the inner wall of the outer ring canal of steel and the outer wall of steel inner ring canal with piston mechanism, piston mechanism and steel inner ring union coupling steel column correspond the setting and be in same axis with the connection member. In the scheme, the connecting rod piece firstly transmits the axial force to the steel outer ring pipe, so that the steel outer ring pipe is firstly bent to generate primary energy consumption; when the axial force continues to increase, the gap between the piston mechanisms is gradually reduced, when the stroke of the piston mechanisms is extruded or pulled to the end, the steel outer ring pipe is in rigid contact with the steel inner ring pipe or the clamping groove of the steel inner ring pipe, and the steel inner ring pipe gradually achieves yielding along with the continuous increase of the axial force, so that the energy consumption is generated again. In the whole process of twice buckling energy consumption, the axial force borne by the support member is always on the same straight line, the rigidity is increased in the second stage after the first-stage yielding is reduced, overlarge interlayer relative displacement is not generated, and the multi-stage buckling damping controlled energy-consumption support is realized.
The piston mechanism comprises a cylindrical clamping groove formed in the inner wall of the steel outer ring pipe, a clamping bolt matched with the cylindrical clamping groove is arranged on the outer wall of the steel inner ring pipe, axial stress can be reliably guided through the matching of the clamping bolt and the cylindrical clamping groove, and further the occurrence of relative displacement between overlarge layers is avoided.
The piston mechanism comprises a clamping bolt arranged on the inner wall of the steel outer ring pipe, a cylindrical clamping groove matched with the clamping bolt is arranged on the outer wall of the steel inner ring pipe, and the positions of the clamping bolt and the cylindrical clamping groove are interchanged, so that the same effect can be realized.
The ratio of the outer diameter of the cylindrical clamping groove to the length of the steel inner ring pipe is 0.8-1, the yield of the joint can be prevented due to the proportion of the cylindrical clamping groove to the specific size of the steel inner ring pipe, the increased axial force of the steel outer ring pipe after yielding can be reliably transmitted to the inner ring, the rigidity is rapidly increased, and the deformation effect is reduced.
Furthermore, a porous filling plate is arranged in the steel inner ring pipe, the porous filling plate can ensure the stability during secondary buckling energy consumption, and the problem of overlarge deformation caused by rapid reduction of rigidity after the traditional buckling-restrained brace is buckled is solved.
Furthermore, the porous filling plate is a zinc plate or a low-yield steel material, the ratio of the diameter of the porous filling plate to the thickness of the plate is 10-15, the openings in the porous filling plate are symmetrically arranged, and the ratio of the area of each opening to the area of the whole porous filling plate is 25% -50%. The special arrangement of the porous filling plate can prevent the out-of-plane instability and can also achieve the effects of symmetrical tension and compression bearing capacity and full hysteresis curve.
Further, the connecting rod piece comprises a steel pipe connected with the steel outer ring pipe through a steel outer ring pipe connecting end plate, one side of the steel outer ring pipe connecting end plate is an arc-shaped surface attached to the outer wall of the steel outer ring pipe, the other side of the steel outer ring pipe connecting end plate is a plane butted with one end of the steel pipe, the arc-shaped surface can guarantee the reliability of the steel outer ring pipe connecting end plate and the steel outer ring pipe, the plane can be conveniently butted with the end portion of the steel pipe, and then the stability of force transmission is guaranteed. The steel pipe intussuseption is filled with polyurethane, fills polyurethane's steel pipe in, can attenuate steel pipe wall thickness, reduces the component dead weight, prevents to connect the steel pipe buckling, practices thrift steel. The other end of the steel pipe is provided with a plugging steel plate, the outer side of the plugging steel plate is provided with a connecting end plate with a mounting hole, and the connecting end plate can be conveniently connected with the supporting component through the matching of the high-strength bolt and the connecting end plate.
Further, the diameter ratio of the steel outer ring pipe to the steel inner ring pipe is 1.4-2.2, the diameter to thickness ratio of the steel outer ring pipe to the steel inner ring pipe is 1.4-2.2, the gap between the steel outer ring pipe and the steel inner ring pipe is 0.06 times of the outer diameter of the steel outer ring pipe, the length to diameter ratio of the steel outer ring pipe is 0.5-1.2, and the length to diameter ratio of the steel inner ring pipe is 0.5-1. The size proportion has the advantages of preventing the outer steel ring pipe and the inner steel ring pipe from generating out-of-plane instability and achieving the effects of symmetrical tension and compression bearing capacity and full hysteresis curve.
Furthermore, the ratio of the diameter of the steel outer ring pipe connection end plate to the length of the steel outer ring pipe is 0.6-1, so that the strength of the steel outer ring pipe connection end plate can be prevented from being damaged.
The steel inner ring union coupling steel column is the T font, and the one end that steel inner ring union coupling steel column and steel inner ring union meet is the arc, and the setting of arc can guarantee steel inner ring pipe and steel outer ring union biography stability and reliability of biography power. The steel inner ring pipe is connected with one end, connected with the steel column, of the steel outer ring pipe, the steel plate is perpendicular to the arc-shaped plate, and the ratio of the diameter of the arc-shaped plate to the length of the steel inner ring pipe is 0.8-1. The size ratio has the advantages that the yield of the joint is prevented, so that the increased axial force of the steel outer ring pipe after yielding can be reliably transmitted to the steel inner ring pipe, the rigidity is rapidly increased, and the deformation is reduced.
The invention has good secondary hysteresis energy consumption performance, can play the effect of a damper, thereby achieving the effect of multi-stage energy consumption, can effectively solve the problem of overlarge deformation caused by rapid reduction of rigidity after yielding of the traditional buckling-restrained brace, and can be widely applied to structural seismic reinforcement, seismic design components and the like. According to the invention, through the diameters, wall thicknesses and lengths of the steel inner ring pipe and the steel outer ring pipe, the moment of inertia and the overall rigidity of the overall section of the multi-stage control buckling damping energy consumption supporting member can be adjusted, the control of multi-stage rigidity control and multi-stage buckling damping energy consumption is achieved, the problem that the later-stage rigidity is always reduced after the member is initially buckled is effectively solved, the interlayer relative displacement of the structure under the action of multi-stage load is effectively controlled, and the purpose of energy consumption is achieved. The invention makes up the variety of the existing buckling support member, provides multistage rigidity control and multistage damping energy consumption for structural design and reinforcement, and quantitatively solves the problems of rigidity and damping requirements of medium and large earthquakes. The component of the invention can adopt common steel with yield point, thus improving the applicability of the steel.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of FIG. 1;
FIG. 4 is a cross-sectional view taken along plane G-G of FIG. 3;
FIG. 5 is a cross-sectional view taken along the line A-A in FIG. 3;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 7 is a cross-sectional view taken along plane C-C of FIG. 3;
FIG. 8 is a cross-sectional view taken along plane D-D of FIG. 3;
FIG. 9 is a cross-sectional view taken along plane E-E of FIG. 3;
fig. 10 is a cross-sectional view taken along plane F-F of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 4-6, the steel pipe 10 is filled with polyurethane 9, and the steel pipe 10 filled with polyurethane 9 can reduce the thickness of the steel pipe, reduce the weight of the member, prevent the buckling of the connecting steel pipe, and save steel. As shown in fig. 5, the other end of the steel pipe 10 is provided with a plugging steel plate 11, the outer side of the plugging steel plate 11 is provided with a connecting end plate 12 with a mounting hole, and the steel pipe can be conveniently connected with the supporting component by matching a high-strength bolt with the connecting end plate 12.
As shown in fig. 3 and 10, the outer wall of the steel inner ring pipe 2 is fixedly connected with the inner wall of the steel outer ring pipe 1 through a steel inner ring pipe connection steel column 8, the steel inner ring pipe connection steel column 8 is T-shaped, the end, connected with the steel inner ring pipe 2, of the steel inner ring pipe connection steel column 8 is an arc-shaped plate 8-1, and the arrangement of the arc-shaped plate 8-1 can ensure the stability and reliability of force transmission between the steel inner ring pipe 2 and the steel outer ring pipe 1. One end, connected with the steel outer ring pipe 1, of the steel inner ring pipe connecting steel column 8 is a steel plate 8-2 perpendicular to the arc plate 8-1, and the ratio of the diameter of the arc plate 8-1 to the length of the steel inner ring pipe 2 is 0.8-1. The size ratio has the advantages that the yield of the joint is prevented, so that the increased axial force of the steel outer ring pipe 1 after yielding can be reliably transmitted to the steel inner ring pipe 2, the rigidity is rapidly increased, and the deformation is reduced.
As shown in fig. 1, 2 and 8, a piston mechanism is arranged between the inner wall of the steel outer ring pipe 1 and the outer wall of the steel inner ring pipe 2, the piston mechanism and the steel inner ring pipe connecting steel column 8 are correspondingly arranged and located on the same axis with the steel pipe 10, and the arrangement mode of the same axis can ensure the reliability of the stress of the steel inner ring pipe and the steel outer ring pipe. The piston mechanism comprises a cylindrical clamping groove 6 formed in the inner wall of the steel outer ring pipe 1, a clamping bolt 5 matched with the cylindrical clamping groove 6 is arranged on the outer wall of the steel inner ring pipe 2, axial stress can be reliably guided through the matching of the clamping bolt 5 and the cylindrical clamping groove 6, the occurrence of relative displacement between overlarge layers can be avoided, the positions of the clamping bolt 5 and the cylindrical clamping groove 6 are interchanged, and the same effect can be achieved.
The steel pipe 10 in the scheme firstly transmits the axial force to the steel outer ring pipe 1, so that the steel outer ring pipe 1 is firstly bent to generate primary energy consumption; when the axial force continues to increase, the gap between the piston mechanisms is gradually reduced, when the stroke of the piston mechanisms is extruded or pulled up to the end, the steel outer ring pipe 1 is in rigid contact with the steel inner ring pipe 2 or the cylindrical clamping groove 6, and the steel inner ring pipe 2 gradually yields with the continuous increase of the axial force, so that the energy consumption is generated again. In the whole process of twice buckling energy consumption, the axial force borne by the support component is always on the same straight line, relative displacement between layers is avoided, the multi-stage buckling damping control energy consumption support is realized, the good secondary hysteretic energy consumption performance is achieved, the effect of a damper can be achieved, the multi-stage energy consumption effect is achieved, the problem of overlarge deformation caused by rapid rigidity reduction after the traditional buckling-restrained support is buckled can be effectively solved, and the support component can be widely applied to structural seismic reinforcement, seismic design components and the like.
In embodiment 2, as shown in fig. 8, a ratio of an outer diameter of the cylindrical clamping groove 6 to a length of the steel inner ring pipe 2 is 0.8 to 1, and a ratio of the cylindrical clamping groove 6 to the steel inner ring pipe 2 in a specific size can further prevent a joint from yielding, so that an axial force increased after yielding of the steel outer ring pipe 1 can be reliably transmitted to the inner ring 2, the rigidity is rapidly increased, and the deformation effect is reduced.
The other structure of this embodiment is the same as embodiment 1.
The other structure of this embodiment is the same as embodiment 1 or 2.
Example 4, as shown in fig. 1 to 3 and 7, the porous filling plate 3 is a zinc plate or a low yield steel, a ratio of a diameter to a plate thickness of the porous filling plate 3 is 10 to 15, openings in the porous filling plate 3 are symmetrically arranged, and a ratio of an area of the openings to an area of the entire porous filling plate is 25 to 50%. The special arrangement of the porous filling plate can prevent the out-of-plane instability and can also achieve the effects of symmetrical tension and compression bearing capacity and full hysteresis curve.
The other structure of this embodiment is the same as embodiment 3.
The other structure of this embodiment is the same as that of any of embodiments 1 to 4.
In embodiment 6, as shown in fig. 9, a multi-stage buckling damping energy dissipation control supporting member is provided, where a ratio of a diameter of the steel outer ring pipe connection end plate 4 to a length of the steel outer ring pipe 1 is 0.6 to 1, so as to prevent the strength of the steel outer ring pipe connection end plate 4 from being damaged.
The other structure of this embodiment is the same as embodiment 5.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a multistage control bucking damping power consumption supporting member, includes outer ring pipe of steel (1) and steel inner ring pipe (2) of concentric setting, its characterized in that: the two sides of the outer wall of the steel outer ring pipe (1) are respectively provided with a connecting rod piece which corresponds to each other, the outer wall of the steel inner ring pipe (2) is fixedly connected with the inner wall of the steel outer ring pipe (1) through a steel inner ring pipe connecting steel column (8), a piston mechanism is arranged between the inner wall of the steel outer ring pipe (1) and the outer wall of the steel inner ring pipe (2), and the piston mechanism and the steel inner ring pipe connecting steel column (8) are arranged correspondingly and are positioned on the same axis with the connecting rod piece;
the piston mechanism is characterized in that a porous filling plate (3) is arranged in the steel inner ring pipe (2), the porous filling plate (3) is perpendicular to the axis of the steel inner ring pipe (2) and corresponds to the piston mechanism, odd number of long holes extending towards the axial direction of the piston mechanism are formed in the porous filling plate (3), the long hole in the middle of the porous filling plate (3) is larger than the long holes on two sides, and the lengths of the long holes on two sides are gradually reduced along with the increase of the distance between the long holes in the middle;
the porous filling plate (3) is a zinc plate or a low-yield steel material, the ratio of the diameter of the porous filling plate (3) to the thickness of the plate is 10-15, the openings on the porous filling plate (3) are symmetrically arranged, and the ratio of the area of the openings to the area of the whole porous filling plate (3) is 25% -50%;
the connecting rod piece comprises a steel pipe (10) connected with the steel outer ring pipe (1) through a steel outer ring pipe connecting end plate (4), one side of the steel outer ring pipe connecting end plate (4) is an arc-shaped surface attached to the outer wall of the steel outer ring pipe (1), the other side of the steel outer ring pipe connecting end plate is a plane butted with one end of the steel pipe (10), polyurethane (9) is filled in the steel pipe (10), the other end of the steel pipe (10) is provided with a plugging steel plate (11), and the outer side of the plugging steel plate (11) is provided with a connecting end plate (12) with a mounting hole;
the diameter ratio of the steel outer ring pipe (1) to the steel inner ring pipe (2) is 1.4-2.2, the diameter ratio and the thickness ratio of the steel outer ring pipe (1) to the steel inner ring pipe (2) are 1.4-2.2, the stroke of a piston mechanism between the steel outer ring pipe (1) and the steel inner ring pipe (2) is 0.06 times of the outer diameter of the steel outer ring pipe (1), the length-diameter ratio of the steel outer ring pipe (1) is 0.5-1.2, and the length-diameter ratio of the steel inner ring pipe (2) is 0.5-1.
2. The multi-stage controlled buckling damped energy dissipating support member of claim 1, wherein: the piston mechanism comprises a cylindrical clamping groove (6) arranged on the inner wall of the steel outer ring pipe (1), and a clamping bolt (5) matched with the cylindrical clamping groove (6) is arranged on the outer wall of the steel inner ring pipe (2).
3. The multi-stage controlled buckling damped energy dissipating support member of claim 1, wherein: the piston mechanism comprises a clamping bolt (5) arranged on the inner wall of the steel outer ring pipe (1), and a cylindrical clamping groove (6) matched with the clamping bolt (5) is arranged on the outer wall of the steel inner ring pipe (2).
4. The multi-stage controlled buckling damped energy dissipating support member of claim 3, wherein: the ratio of the outer diameter of the cylindrical clamping groove (6) to the length of the steel inner ring pipe (2) is 0.8-1.
5. The multi-stage controlled buckling damped energy dissipating support member of claim 1, wherein: the ratio of the diameter of the steel outer ring pipe connecting end plate (4) to the length of the steel outer ring pipe (1) is 0.6-1.
6. The multi-stage controlled buckling damped energy dissipating support member of claim 5, wherein: the steel inner ring pipe connecting steel column (8) is T-shaped, an arc-shaped plate (8-1) is arranged at one end, connected with the steel inner ring pipe (2), of the steel inner ring pipe connecting steel column (8), a steel plate (8-2) perpendicular to the arc-shaped plate (8-1) is arranged at one end, connected with the steel outer ring pipe (1), of the steel inner ring pipe connecting steel column (8), and the ratio of the diameter of the arc-shaped plate (8-1) to the length of the steel inner ring pipe (2) is 0.8-1.
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| CN201811453818.3A CN109653389B (en) | 2018-11-30 | 2018-11-30 | Multistage control buckling damping energy dissipation supporting component |
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| CN201811453818.3A CN109653389B (en) | 2018-11-30 | 2018-11-30 | Multistage control buckling damping energy dissipation supporting component |
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| CN109653389B true CN109653389B (en) | 2021-03-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276583Y (en) * | 1997-01-28 | 1998-03-18 | 周云 | Stiffening double-ring energy consuming dampener |
| CN201053149Y (en) * | 2007-05-25 | 2008-04-30 | 黄秀云 | Composite ring type damper |
| CN102392498A (en) * | 2011-10-19 | 2012-03-28 | 沈阳建筑大学 | Four-concave edge porous metal damper |
| CN206941863U (en) * | 2017-06-29 | 2018-01-30 | 中原工学院 | The buckling-restrained energy-dissipation of high-expansion high polymer is filled in a kind of |
| CN107905398A (en) * | 2017-09-26 | 2018-04-13 | 同济大学 | A kind of multistage concentric damper that consumes energy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153476B (en) * | 2014-05-30 | 2017-04-05 | 重庆大学 | A kind of piston damper of saturated sand filling |
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2018
- 2018-11-30 CN CN201811453818.3A patent/CN109653389B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276583Y (en) * | 1997-01-28 | 1998-03-18 | 周云 | Stiffening double-ring energy consuming dampener |
| CN201053149Y (en) * | 2007-05-25 | 2008-04-30 | 黄秀云 | Composite ring type damper |
| CN102392498A (en) * | 2011-10-19 | 2012-03-28 | 沈阳建筑大学 | Four-concave edge porous metal damper |
| CN206941863U (en) * | 2017-06-29 | 2018-01-30 | 中原工学院 | The buckling-restrained energy-dissipation of high-expansion high polymer is filled in a kind of |
| CN107905398A (en) * | 2017-09-26 | 2018-04-13 | 同济大学 | A kind of multistage concentric damper that consumes energy |
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