CN211735879U - Double-step yield metal bending damper - Google Patents
Double-step yield metal bending damper Download PDFInfo
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- CN211735879U CN211735879U CN201922422081.5U CN201922422081U CN211735879U CN 211735879 U CN211735879 U CN 211735879U CN 201922422081 U CN201922422081 U CN 201922422081U CN 211735879 U CN211735879 U CN 211735879U
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Abstract
The utility model discloses a crooked type attenuator of two-step yield metal, including the upper junction plate, upper junction plate one side is equipped with the lower connecting plate corresponding with the upper junction plate, the first crooked steel sheet of six symmetries has been arranged to upper junction plate and lower connecting plate both ends equidistance, be equipped with the crooked steel sheet of second that a plurality of equidistance were arranged between the first crooked steel sheet, the both ends of first crooked steel sheet and the crooked steel sheet of second respectively with upper junction plate and lower connecting plate fixed connection. The utility model discloses have two different yield strengths, but the stage entering is surrendered, satisfies different anti-seismic performance demands. Simple structure, easy maintenance and installation, good durability and the like.
Description
Technical Field
The utility model relates to a civil engineering structure vibration control field, in particular to crooked type attenuator of two-step yield metal.
Background
The metal damper includes a shear type, a bending type, an axial type, and the like. The axial metal damper is mainly a yielding constraint support and consumes energy through tension-compression deformation. The shearing type metal damper and the bending type metal damper respectively consume energy through the shearing deformation and the bending deformation of the metal plate. The bending metal damper is connected between structural frame beams in a cantilever wall mode and the like, and steel supports and the like are adopted. Under the condition of frequent earthquakes, the bent metal damper needs to enter a yielding stage and provides a certain additional damping ratio, generally about 2-3%. In actual design, the displacement of the floor is small under the condition of frequent earthquakes, and the problem that the metal damper does not enter a yield state possibly exists, so that the energy consumption effect is influenced.
Therefore, it is necessary to invent a double-step yield metal bending type damper to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crooked type attenuator of two-step yield metal to the floor displacement is less under the meeting earthquake that proposes in solving above-mentioned background art, probably has the problem that the metal damper does not get into the yield state, influences the problem of power consumption effect.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crooked type attenuator of two rank yield metal, includes the upper junction plate, upper junction plate one side is equipped with the lower connecting plate corresponding with the upper junction plate, the first crooked steel sheet of six symmetries has been arranged to upper junction plate and lower connecting plate both ends equidistance, be equipped with the crooked steel sheet of the second that a plurality of equidistance were arranged between the first crooked steel sheet, the both ends of first crooked steel sheet and the crooked steel sheet of second respectively with upper junction plate and lower connecting plate fixed connection, crooked type metal attenuator is installed in building structure, can adopt cantilever wall formula to connect, "people" word props and connects and "V" word props the connection.
Preferably, the first bent steel plate hole enables the section weakening to be larger and has a smaller yield displacement; the second bent steel plate hole weakens the section slightly and has a larger yield displacement, and the goal of graded yield energy consumption is realized by adjusting the size parameters of the holes of the two bent steel plates.
Preferably, the first bent steel plate and the second bent steel plate can realize full-section yielding under certain horizontal displacement, and the materials are fully utilized.
Preferably, the upper connecting plate is connected with the upper structure through a pre-buried steel plate in a bolt connection or a welding connection mode; the lower connecting plate is connected with the lower structure through the embedded steel plate in a welding mode or in a bolt mode.
Preferably, the lateral stiffness of the bending damper is far greater than the longitudinal stiffness, and the embedded plates connected with the upper connecting plate and the lower connecting plate can provide enough bending stiffness when the bending damper is installed.
The utility model has the advantages that:
when the double-order yield metal bending damper is installed in a structure, earthquake level acts on the structure, certain horizontal displacement is generated in the structure, the horizontal displacement enables a first bending steel plate with small yield displacement to enter a yield state, energy consumption begins, a second bending steel plate with large yield displacement still keeps elasticity at the moment, certain rigidity can be provided, when the horizontal displacement continues to increase, the second bending steel plate can gradually enter the yield state, each bending steel plate in the damper only provides rigidity after yield and enters a complete energy consumption state, double-order yield strength is achieved, different requirements for anti-seismic performance are met, installation and maintenance are simple, and durability is good.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a side view of the present invention;
in the figure: 1 upper junction plate, 2 lower junction plates, 3 first crooked steel sheet, 4 second crooked steel sheet.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a crooked type attenuator of two-step yield metal as shown in fig. 1-2, including upper junction plate 1, 1 one side of upper junction plate is equipped with lower connecting plate 2 corresponding with upper junction plate 1, the first crooked steel sheet 3 of six symmetries has been arranged with 2 both ends equidistance of lower connecting plate 1, be equipped with the second crooked steel sheet 4 that a plurality of equidistance were arranged between the first crooked steel sheet 3, the both ends of first crooked steel sheet 3 and second crooked steel sheet 4 respectively with upper junction plate 1 and lower connecting plate 2 fixed connection.
Further, in the above technical solution, the first bent steel plate 3 has a large cross-sectional weakening with a small yield displacement; the hole of the second bent steel plate 4 causes the section weakening to be slightly smaller and has larger yield displacement;
further, in the above technical solution, the first curved steel plate 3 and the second curved steel plate 4 can realize full-section yielding under a certain horizontal displacement;
further, in the above technical scheme, the upper connection plate 1 is connected with the upper structure by bolts or welding through an embedded steel plate; the lower connecting plate 2 is connected with the lower structure through the embedded steel plate in a welding mode or in a bolt mode;
further, in the above technical solution, the lateral stiffness of the bending damper is much greater than the longitudinal stiffness, and the pre-embedded plates connected to the upper connecting plate 1 and the lower connecting plate 2 can provide sufficient bending stiffness when installed.
This practical theory of operation:
referring to the attached drawings 1-2 of the specification, when the double-order yield metal bending damper is installed in a structure, an earthquake horizontally acts on the structure, certain horizontal displacement is generated in the structure, the horizontal displacement enables a first bending steel plate 3 with small yield displacement to enter a yield state, energy consumption begins, a second bending steel plate 4 with large yield displacement still keeps elasticity at the moment, certain rigidity can be provided, when the horizontal displacement continues to increase, the second bending steel plate 4 can gradually enter the yield state, each bending steel plate in the damper only provides rigidity after yield, and the damper enters a complete energy consumption state, so that the damper is better in use effect, and the requirements of different earthquake resistance are concealed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. A two-step yield metal bending damper is characterized in that: including upper junction plate (1), upper junction plate (1) one side is equipped with lower connecting plate (2) corresponding with upper junction plate (1), first crooked steel sheet (3) of six symmetries are arranged to upper junction plate (1) and lower connecting plate (2) both ends equidistance, be equipped with the crooked steel sheet of second (4) that a plurality of equidistance were arranged between first crooked steel sheet (3), the both ends of first crooked steel sheet (3) and the crooked steel sheet of second (4) respectively with upper junction plate (1) and lower connecting plate (2) fixed connection.
2. The double-step yield metal flexure-type damper of claim 1, wherein: the hole of the first bent steel plate (3) enables the section to be weakened greatly and has a small yield displacement; the second bent steel plate (4) has a slightly weakened section with a large yield displacement.
3. The double-step yield metal flexure-type damper of claim 1, wherein: the first bent steel plate (3) and the second bent steel plate (4) can realize full-section yielding under certain horizontal displacement.
4. The double-step yield metal flexure-type damper of claim 1, wherein: the upper connecting plate (1) is connected with an upper structure through an embedded steel plate by bolts or welding; the lower connecting plate (2) is connected with the lower structure through the embedded steel plate in a welding mode or in a bolt mode.
5. The double-step yield metal flexure-type damper of claim 1, wherein: the lateral rigidity of the bending damper is far greater than the longitudinal rigidity, and the embedded plates connected with the upper connecting plate (1) and the lower connecting plate (2) can provide enough bending rigidity during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422081.5U CN211735879U (en) | 2019-12-30 | 2019-12-30 | Double-step yield metal bending damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422081.5U CN211735879U (en) | 2019-12-30 | 2019-12-30 | Double-step yield metal bending damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211735879U true CN211735879U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422081.5U Active CN211735879U (en) | 2019-12-30 | 2019-12-30 | Double-step yield metal bending damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211735879U (en) |
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2019
- 2019-12-30 CN CN201922422081.5U patent/CN211735879U/en active Active
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