Regression Analysis of Dynamic Parameters Based on Experimental Data of a New Seismic Isolation Layer

Fei Yao; Ke Liu; Shou Ping Shang

doi:10.4028/www.scientific.net/AMM.105-107.523

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Dynamic Simulation and Experimental Analysis on Ride Comfort Performance of Tracked Vehicle
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Dynamic Peculiarity of Piezoelectric-Stack Displacement-Amplifying Actuator
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Study of Modal Parameter Identification from Ambient Vibration on a Deep Radial Gate
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Numerical Simulation of Fluctuating Propeller Forces and Comparison with Experimental Data
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Regression Analysis of Dynamic Parameters Based on Experimental Data of a New Seismic Isolation Layer
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Robust Optimization of Dynamic Response of Structures with Uncertain Parameters
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Research on Steering Dynamic Characteristics of Tracked Vehicle Transmission System
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Dynamical Analysis on a Mass at the Tip of a Flexible Rod on a Rotating Base
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Research and Analysis of Dynamic Behaviour in the Mathematical Models of the 6-Axle Locomotive
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107Regression Analysis of Dynamic Parameters Based on...

Regression Analysis of Dynamic Parameters Based on Experimental Data of a New Seismic Isolation Layer

Abstract:

A new steel-asphalt composite seismic isolation layer is introduced briefly. Based on data of shake table tests, regression analysis by least squares method is adopted to analyze the natural frequency and the damping ratio of a new isolation layer. The calculation results show that the damping increases as the input acceleration increases because when PGA is relatively large, the lateral displacement of the isolation layer is large, the distance between the upper beam and the lower beam become smaller. The upper beam squeezes the asphalt ointment between it and brick piers. Part of the vertical load begins to transfer to the brick piers and friction occurs between brick piers and upper beam.. It is good for displacement limit of the structure.