Research on Three-dimensional Vibration Control of Frame-shear Wall Structure with New 3DVEDC Bearing
DOI:
https://doi.org/10.13052/ejcm2642-2085.3423Keywords:
Frame-shear structure, three-dimensional vibration control, 3DVEDC bearing, control effect, shaking table testAbstract
The dynamic response of a frame-shear wall building is studied under both vertical and horizontal excitations. To reduce the structural response and control the dynamic amplification factor induced by vibration inputs, a new type of three-dimensional vibration and earthquake dual control (3DVEDC) bearing is proposed. The control effect of the 3DVEDC bearing on the dynamic response of the frame-shear wall structure is investigated. The key technical indicators, such as response spectrum, peak and root-mean-square acceleration, are compared and analyzed for the controlled and uncontrolled structure based on simulation and shaking table test. The effectiveness of the 3DVEDC bearing is further verified in earthquakes. The result shows that the proposed 3DVEDC bearing has a bidirectional decoupling function for vertical and horizontal vibration control. The dynamic response under both vertical and horizontal excitations is effectively controlled by the 3DVEDC bearing. The control effect of the top root-mean-square accelerations of the controlled structure reaches 89.46%. The main frequency range of 1.5∼3.5 Hz of the structure with control is far from the main frequency of the earthquake waves. The seismic control capability is further verified using a shaking table test and the maximum control effect reaches 59.08% in the earthquake.
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