CN214833677U - Steel plate shearing type damper with single weakening structure - Google Patents
Steel plate shearing type damper with single weakening structure Download PDFInfo
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- CN214833677U CN214833677U CN202121234194.3U CN202121234194U CN214833677U CN 214833677 U CN214833677 U CN 214833677U CN 202121234194 U CN202121234194 U CN 202121234194U CN 214833677 U CN214833677 U CN 214833677U
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Abstract
The application provides a steel plate shear type damper with single weakening structure includes: the energy-consuming steel plate is vertically connected with the upper edge and the lower edge of the energy-consuming steel plate; the energy dissipation steel plate is provided with at least one weak part; the thickness of the weak part is smaller than that of the energy dissipation steel plate, and the circumferential edge of the weak part is integrally connected with the weak part through a curved transition edge. The application provides a steel sheet shearing type attenuator with single weakening structure through set up at least one weak portion on the power consumption steel sheet for the power consumption steel sheet has obvious atress weak face, can realize the power consumption in two stages, improves the deformation power consumption performance of attenuator: when the damper enters an elastic-plastic state, the thin steel plate at the weak part firstly achieves yield deformation to consume energy, then the rigidity is degraded, and the damper is out of operation; with the increase of external load or displacement, the thick steel plate of the undamaged part on the energy consumption steel plate begins to yield, continues to deform and consume energy, and therefore the shearing energy consumption of the full section is achieved.
Description
Technical Field
The application relates to the technical field of earthquake resistance and shock absorption in civil engineering, in particular to a steel plate shearing type damper with a single weakening structure.
Background
The energy dissipation and shock absorption technology is that dampers are arranged at certain parts with large relative deformation in the structure, and the purpose of shock absorption is achieved by dissipating or absorbing most of seismic energy through the deformation of the dampers. The steel can show a full hysteresis curve without breaking, and has good energy consumption capability; the steel plate shearing type damper with a single weakening structure utilizes the characteristics of low yield strength and strong plastic deformation capability of mild steel to realize energy consumption.
The existing steel plate shearing type damper with a single weakening structure is characterized in that stiffening steel plates are arranged on one side or two sides in the plane of an energy consumption steel plate, the stiffening steel plates and the energy consumption steel plate are connected in a welding mode, and residual stress and strain caused by welding seams and out-of-plane deformation of the energy consumption steel plate caused by welding can have adverse effects on the stability of the energy consumption steel plate; and the deformation capacity of the mild steel plate is improved by slotting or perforating holes on the energy-consuming steel plate, stress distribution is optimized, and adverse effects caused by welding stiffening steel plates are avoided.
Disclosure of Invention
The present application is directed to the above problems and provides a steel plate shear type damper having a single weakened structure.
In a first aspect, the present application provides a steel plate shear type damper having a unitary weakened structure, comprising:
the energy-consuming steel plate is vertically connected with the upper edge and the lower edge of the energy-consuming steel plate;
the energy dissipation steel plate is provided with at least one weak part;
the thickness of the weak part is smaller than that of the energy dissipation steel plate, and the circumferential edge of the weak part is integrally connected with the weak part through a curved transition edge.
According to the technical scheme provided by some embodiments of the application, the distance between the two side walls on the weak portion and the corresponding side walls on the energy consumption steel plate is equal.
According to the technical scheme provided by some embodiments of the present application, when the energy consumption steel plate has a plurality of the weak portions, the plurality of the weak portions are distributed in an array along a width direction of the energy consumption steel plate, or distributed in an array along a height direction of the energy consumption steel plate.
According to the technical scheme provided by some embodiments of the application, the weak parts are distributed along the diagonal direction of the energy dissipation steel plate.
According to the technical scheme provided by some embodiments of the application, when the energy consumption steel plate is provided with a plurality of weak portions, the weak portions are distributed in an array.
According to the technical scheme provided by some embodiments of the application, when the energy consumption steel plate is provided with a plurality of weak portions, the weak portions comprise: first and second weak portions having different shapes, the first and second weak portions being disposed at an interval.
According to the technical scheme provided by certain embodiments of the application, the shape of the weak part is an ellipse, a circle, a rectangle, a triangle or a diamond.
According to the technical scheme provided by some embodiments of the application, the energy consumption steel plate is connected with the connecting plate in a welding, bolt connection or integrated forming mode.
According to the technical scheme provided by some embodiments of the application, the energy consumption steel plate is rectangular, and the left side and the right side of the energy consumption steel plate are vertically connected with flange plates.
According to the technical scheme provided by some embodiments of the application, the left side and the right side of the energy consumption steel plate are provided with arc inner concave surfaces or arc outer convex surfaces which are symmetrically arranged.
In a second aspect, the present application provides another steel plate shear type damper having a single weakened structure, comprising: the energy-consuming steel plate comprises two connecting plates arranged in parallel and a plurality of energy-consuming steel plates which are vertically connected between the two connecting plates and are arranged side by side; a gap is formed between every two adjacent energy consumption steel plates; the energy dissipation steel plate is provided with at least one weak part; the thickness of the weak part is smaller than that of the energy dissipation steel plate, and the circumferential edge of the weak part is integrally connected with the weak part through a curved transition edge.
Compared with the prior art, the beneficial effect of this application: this steel sheet shearing type attenuator with single weakening structure through set up at least one weak portion on the power consumption steel sheet for the power consumption steel sheet has obvious atress weak plane, can realize the power consumption in two stages, improves the deformation power consumption performance of attenuator: when the damper enters an elastic-plastic state, the thin steel plate at the weak part firstly achieves yield deformation to consume energy, then the rigidity is degraded, and the damper is out of operation; with the increase of external load or displacement, the thick steel plate of the undamaged part on the energy consumption steel plate begins to yield, continues to deform and consume energy, and therefore the shearing energy consumption of the full section is achieved.
Drawings
Fig. 1 to 10 are schematic structural views of a steel plate shear type damper having a single weakened structure according to example 1 of the present application;
FIGS. 11 to 13 are schematic structural views of a steel plate shear type damper having a single weakened structure according to example 2 of the present application;
FIG. 14 is a schematic structural view of a steel plate shear type damper having a single weakened structure according to example 3 of the present application;
fig. 15 is a schematic structural view of a steel plate shear type damper having a single weakened structure according to example 4 of the present application.
The text labels in the figures are represented as:
1. energy-consuming steel plates; 2. a connecting plate; 3. a weakened portion; 4. a flange plate.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Example 1
The embodiment provides a steel plate shearing type damper with a single weakening structure, which comprises an energy consumption steel plate 1; the energy consumption steel plate 1 can be made of materials such as mild steel, low-yield-point steel or stainless steel; the energy-consuming steel plate 1 is rectangular, the upper edge and the lower edge of the energy-consuming steel plate are respectively and vertically connected with a connecting plate 2, and the left edge and the right edge of the energy-consuming steel plate are respectively and vertically connected with a flange plate 4; the energy-consuming steel plate 1 is connected with the connecting plate 2 in a welding or bolt connection mode, or in an integrated forming mode, for example, H-shaped steel is adopted, a web plate of the H-shaped steel is equivalent to the energy-consuming steel plate 1, local weakening is carried out on the web plate, energy consumption is carried out by using the web plate, and an upper flange and a lower flange of the web plate are used as the connecting plates, so that the integrity is good; the energy-consuming steel plate 1 and the flange plate 4 are connected by welding seams.
The energy consumption steel material 1 is provided with at least one weak part 3; the weak part 3 is obtained by locally weakening corresponding positions on two surfaces of the energy consumption steel material 1; the shape of the weak part can be oval, round, rectangular, triangular, rhombic and the like; the thickness of the weak part 3 is smaller than that of the energy consumption steel plate 1, and the circumferential edge of the weak part 3 is integrally connected with the weak part 3 through a curved transition edge, namely, the connection part of the energy consumption steel plate 1 and the weak part 3 adopts circular arc transition in the processing process of the energy consumption steel plate 1, so that stress concentration can be prevented; the distance between the two side walls of the weak portion 3 and the corresponding side walls of the energy consumption steel plate 1 is equal, as shown in fig. 1.
In a preferred embodiment, when the energy consumption steel plate 1 has a plurality of the weak portions 3, the plurality of the weak portions 3 are arranged in an array along a width direction of the energy consumption steel plate 1, or in an array along a height direction of the energy consumption steel plate.
As shown in fig. 2 to 4, the energy consumption steel plate 1 is provided with a plurality of weak portions 3, the plurality of weak portions 3 are distributed in an array along the width direction of the energy consumption steel plate 1, wherein the distribution of the weak portions 3 along the width direction of the energy consumption steel plate 1 means that the length direction of the weak portions 3 is parallel to the width direction of the energy consumption steel plate 1.
Wherein, the energy consumption steel plate 1 shown in fig. 2 is provided with four weak parts 3; the weak parts 3 are distributed along the width direction of the energy consumption steel plate 1; in fig. 2, four of the weaknesses 3 form a 2x2 array. The energy dissipation steel plate 1 shown in fig. 3 has six weak portions 3; the weak parts 3 are distributed along the width direction of the energy consumption steel plate 1; in fig. 3, six of the weaknesses 3 form a 3x2 array. The energy dissipation steel plate 1 shown in fig. 4 has three weak portions 3; the weak parts 3 are distributed along the width direction of the energy consumption steel plate 1; in fig. 4, three of the weaknesses 3 form a 3x1 array.
As shown in fig. 5 to 7, the energy consumption steel plate 1 is provided with a plurality of weak portions 3, the plurality of weak portions 3 are distributed in an array along the height direction of the energy consumption steel plate 1, wherein the distribution of the weak portions 3 along the height direction of the energy consumption steel plate 1 means that the length direction of the weak portions 3 is parallel to the height direction of the energy consumption steel plate 1.
The energy dissipation steel plate 1 shown in fig. 5 has eight weak portions 3, the weak portions 3 are distributed along the height direction of the energy dissipation steel plate 1, and the eight weak portions 3 form an array of 2 × 4. The energy dissipation steel plate 1 shown in fig. 6 has four weak portions 3, the weak portions 3 are distributed along the height direction of the energy dissipation steel plate 1, and the four weak portions 3 form an array of 1 × 4. The energy consumption steel plate 1 shown in fig. 7 has three weak portions 3, the weak portions 3 are distributed along the height direction of the energy consumption steel plate 1, and the three weak portions 3 form an array of 1 × 3.
In a preferred embodiment, the weak portions 3 are distributed along the diagonal direction of the energy consumption steel plate 1, that is, the length direction of the weak portions 3 is parallel to any diagonal direction of the energy consumption steel plate 1. Further, when the energy consumption steel plate 1 has a plurality of weak portions 3, the plurality of weak portions 3 are distributed in an array.
The energy consumption steel plate 1 shown in fig. 8 is provided with five weak parts 3; the weak portions 3 are distributed along the diagonal direction of the energy consumption steel plate 1. The energy consumption steel plate 1 shown in fig. 9 has three weak portions 3, the weak portions 3 are distributed along a diagonal direction of the energy consumption steel plate 1, and the three weak portions 3 form an array of 1 × 3.
In a preferred embodiment, when the energy consumption steel plate 1 has a plurality of weak portions 3, the weak portions 3 include: first and second weak portions having different shapes, the first and second weak portions being disposed at an interval.
The energy consumption steel plate 1 shown in fig. 10 has five weak portions 3, including three first weak portions and two second weak portions, the first weak portions are long-strip-shaped portions with two ends protruding outwards and arc-shaped, the second weak portions are oval-shaped, and the first weak portions and the second weak portions are arranged at intervals.
Example 2
As shown in fig. 11 to 13, the present embodiment provides a steel plate shear type damper having a single weakened structure, including a dissipative steel plate 1; the upper edge and the lower edge of the energy-consuming steel plate 1 are respectively and vertically connected with a connecting plate 2, and the left side and the right side of the energy-consuming steel plate 1 are provided with symmetrically arranged arc inner concave surfaces; the energy consumption steel material 1 is provided with at least one weak part 3; the thickness of the weak part 3 is smaller than that of the energy consumption steel plate 1, and the circumferential edge of the weak part 3 is integrally connected with the weak part 3 through a curved transition edge; the distance between the two side walls of the weak part 3 and the corresponding side walls of the energy consumption steel plate 1 is equal.
Example 3
As shown in fig. 14, the present embodiment provides a steel plate shear type damper having a single weakened structure, including a dissipative steel plate 1; the upper edge and the lower edge of the energy-consuming steel plate 1 are respectively and vertically connected with a connecting plate 2, and the left side and the right side of the energy-consuming steel plate 1 are provided with arc outer convex surfaces which are symmetrically arranged; the energy consumption steel material 1 is provided with at least one weak part 3; the shape of the weak part 3 can be oval, round, rectangular, triangular, rhombic and the like; the thickness of the weak part 3 is smaller than that of the energy consumption steel plate 1, and the circumferential edge of the weak part 3 is integrally connected with the weak part 3 through a curved transition edge; the distance between the two side walls of the weak part 3 and the corresponding side walls of the energy consumption steel plate 1 is equal.
Example 4
As shown in fig. 15, the present embodiment provides a steel plate shear type damper having a single weakened structure, comprising: the energy-consuming steel plate comprises two connecting plates 2 arranged in parallel and a plurality of energy-consuming steel plates 1 which are vertically connected between the two connecting plates 2 and are arranged side by side; a gap is formed between every two adjacent energy consumption steel plates 1; the energy dissipation steel plate 1 is provided with at least one weak part 3; the thickness of the weak part 3 is smaller than that of the energy dissipation steel plate 1, and the circumferential edge of the weak part 3 is integrally connected with the weak part 3 through a curved transition edge.
In the embodiment, three energy consumption steel plates 1 are arranged between two connecting plates 2, a gap is left between two adjacent energy consumption steel plates 1, the three energy consumption steel plates 1 have the same structure and are rectangular, and the four energy consumption steel plates 1 are provided with four weak portions 3, the length direction of the weak portions 3 is perpendicular to the height direction of the energy consumption steel plates 1, and the four weak portions 3 form a 4x1 array.
The steel plate shearing type damper with the single weakening structure is simple and convenient to install, can be arranged on a herringbone support in a building, can also be used between a beam and a wall, can be connected by welding or bolts, and can be used in new construction and reinforcing and reforming engineering; the damper has the advantages of simple structural form, convenient industrial processing, larger initial rigidity than a slotted steel plate and a steel plate with holes, strong energy consumption and the like; through set up at least one weak part on the power consumption steel sheet for the power consumption steel sheet has obvious atress weak plane, can realize the power consumption in two stages, improves the deformation power consumption performance of attenuator: when the damper enters an elastic-plastic state, the thin steel plate at the weak part firstly achieves yield deformation to consume energy, then the rigidity is degraded, and the damper is out of operation; with the increase of external load or displacement, the thick steel plate of the undamaged part on the energy consumption steel plate begins to yield, and continues to deform and consume energy, so that the shearing energy consumption of the full section is achieved; during processing, the energy consumption can be adjusted by changing the shape, depth, quantity, position and the like of the weak part to form various steel plate shearing type dampers with single weakening structures according to actual requirements.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (10)
1. A steel plate shear type damper having a unitary weakened structure, comprising:
the energy-consuming steel plate is vertically connected with the upper edge and the lower edge of the energy-consuming steel plate;
the energy dissipation steel plate is provided with at least one weak part;
the thickness of the weak part is smaller than that of the energy dissipation steel plate, and the circumferential edge of the weak part is integrally connected with the weak part through a curved transition edge.
2. A steel plate shear type damper having a unitary weakened structure according to claim 1, wherein the two side walls of the weakened portion are spaced equally from the corresponding side walls of the energy dissipating steel plate.
3. A steel plate shear type damper having a single weakening structure as claimed in claim 1, wherein when said energy dissipating steel plate has a plurality of said weak portions thereon, the plurality of said weak portions are arranged in an array in a width direction of said energy dissipating steel plate or in an array in a height direction of said energy dissipating steel plate.
4. A steel plate shear type damper having a single weakened structure according to claim 1, wherein the weakened portions are distributed in a diagonal direction of the energy dissipating steel plate.
5. A steel plate shear type damper having a unitary weakened structure according to claim 4, wherein when said energy dissipating steel plate has a plurality of said weakenings, said weakenings are arranged in an array.
6. A steel plate shear type damper having a unitary weakened structure according to claim 1, wherein when said energy dissipating steel plate has a plurality of weakenings thereon, said weakenings comprise: first and second weak portions having different shapes, the first and second weak portions being disposed at an interval.
7. A steel plate shear type damper with a single weakened structure as claimed in claim 1, wherein said energy dissipating steel plate is connected to said connecting plate by welding, bolting or integral molding.
8. A steel plate shear type damper having a single weakened structure according to claim 1, wherein said energy dissipating steel plate has a rectangular shape with flange plates vertically attached to left and right sides thereof.
9. A steel plate shear type damper with a single weakened structure as claimed in claim 1, wherein said energy dissipating steel plate has symmetrically arranged inner and outer circular arc concave surfaces on both left and right sides.
10. A steel plate shear type damper having a unitary weakened structure, comprising: the energy-consuming steel plate comprises two connecting plates arranged in parallel and a plurality of energy-consuming steel plates which are vertically connected between the two connecting plates and are arranged side by side; a gap is formed between every two adjacent energy consumption steel plates; the energy dissipation steel plate is provided with at least one weak part; the thickness of the weak part is smaller than that of the energy dissipation steel plate, and the circumferential edge of the weak part is integrally connected with the weak part through a curved transition edge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121234194.3U CN214833677U (en) | 2021-06-03 | 2021-06-03 | Steel plate shearing type damper with single weakening structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121234194.3U CN214833677U (en) | 2021-06-03 | 2021-06-03 | Steel plate shearing type damper with single weakening structure |
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| CN214833677U true CN214833677U (en) | 2021-11-23 |
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