A self-resetting wide-frequency domain hybrid energy-dissipating damper
A self-resetting, wide-frequency domain technology, applied in the field of wide-frequency domain hybrid energy-dissipating dampers, can solve the problem of limited energy dissipation capacity of the device, achieve the effect of compact internal space, clear functions, and elimination of residual displacement
Active Publication Date: 2021-09-03
TONGJI UNIV
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Problems solved by technology
Although the patented composite damping device has self-resetting and viscous energy dissipation capabilities, the energy dissipation capability of the device is limited under low-frequency vibrations
Method used
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Embodiment 1
[0060] The self-resetting wide-frequency domain hybrid damper adopting this structure is as follows: figure 1 and figure 2 As shown, it mainly includes three parts: viscous damping device, self-returning spring device and transitional friction connection device, as well as two rod end joint ball bearings arranged at both ends, namely the first rod end joint ball bearing and the second rod end joint Jack joint.
[0061] The basic composition of the viscous damping device is: first rod end joint bearing 1, bearing lock nut 16, transition joint 2, joint lock nut 17, first damping plug 18, second damping plug 21 and viscous damping The sub-cylinder body 4 (i.e. the second cylinder body) is fixedly connected together to form the closed shell of the viscous damping device, the sub-cylinder body 4 is filled with viscous viscous damping fluid 3, and the viscous damping fluid 3 is sealed at the second Between the first damping plug 18 and the second damping plug 21, a piston 19 is f...
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The invention relates to a self-resetting wide-frequency domain hybrid energy-dissipating damper, which includes: a self-resetting spring device: including a first cylinder body, a first shaft rod, a pre-compression spring, and two pre-compression limiters, the first shaft The rod is placed in the first cylinder, and two tightening parts are arranged at intervals on the inner wall of the first cylinder; the viscous damping device: includes the second cylinder, damping plugs arranged at both ends of the second cylinder, and two The ends respectively pass through the second shaft of the damping plugs at both ends, and a piston that contacts and seals with the inner wall of the second cylinder is also provided on the second shaft, and a throttling hole is provided on the piston; the transitional friction connection device: Its two ends are respectively fixedly connected with the first shaft and the second shaft. Compared with the prior art, the present invention integrates self-resetting, buckling resistance, lateral force resistance and energy consumption, and exhibits good energy consumption and self-resetting and other seismic performances in the face of low-frequency and high-frequency dynamic excitations. At the same time, it is ensured that the damper components are basically undamaged after the earthquake and do not need to be replaced, reducing earthquake losses.
Description
technical field [0001] The invention belongs to the technical field of anti-shock and shock absorption of structural engineering, and relates to a self-resetting wide-frequency domain hybrid energy-dissipating damper. Background technique [0002] The anti-seismic design goal of traditional structures is not to collapse in large earthquakes. After the structure experienced rare earthquakes, although the structure did not collapse as a whole, the energy consumption of the material into the plastic yield caused a large residual deformation to the structure after the earthquake. Afterwards, it is difficult to repair, and the building can only wait for demolition and reconstruction. During this period, the functions of the buildings cannot be performed, and the decommissioning of a large number of buildings will bring huge economic losses and social problems to the society. With the introduction and popularization of the concept of resilient city, people hope that the function ...
Claims
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IPC IPC(8): E04H9/02E04B1/98
CPCE04B1/98E04H9/021
Inventor 王伟李俊霖
Owner TONGJI UNIV