A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wavelet‐based non‐stationary seismic rocking response of flexibly supported tanks
10.1002/eqe.340.abs
The non‐stationary rocking response of liquid storage tanks under seismic base excitations including soil interaction has been developed based on the wavelet domain random vibration theory. The ground motion has been characterized through statistical functionals of wavelet coefficients of the ground acceleration history. The tank–liquid–foundation system is modelled as a multi‐degree‐of‐freedom (MDOF) system with both lateral and rocking motions of vibration of the foundation. The impulsive and convective modes of vibration of the liquid in the tank have been considered. The wavelet domain coupled dynamic equations are formulated and then solved to get the expressions of instantaneous power spectral density function (PSDF) in terms of functionals of input wavelet coefficients. The moments of the instantaneous PSDF are used to obtain the stochastic responses of the tank in the form of coefficients of hydrodynamic pressure, base shear and overturning base moment for the largest expected peak responses. Parametric variations are carried out to study the effects of various governing parameters like height of liquid in the tank, height–radius ratio of the tank, ratio of total liquid mass to mass of foundation, and shear wave velocity in the soil medium, on the responses of the tank. Copyright © 2003 John Wiley & Sons, Ltd.
Wavelet‐based non‐stationary seismic rocking response of flexibly supported tanks
10.1002/eqe.340.abs
The non‐stationary rocking response of liquid storage tanks under seismic base excitations including soil interaction has been developed based on the wavelet domain random vibration theory. The ground motion has been characterized through statistical functionals of wavelet coefficients of the ground acceleration history. The tank–liquid–foundation system is modelled as a multi‐degree‐of‐freedom (MDOF) system with both lateral and rocking motions of vibration of the foundation. The impulsive and convective modes of vibration of the liquid in the tank have been considered. The wavelet domain coupled dynamic equations are formulated and then solved to get the expressions of instantaneous power spectral density function (PSDF) in terms of functionals of input wavelet coefficients. The moments of the instantaneous PSDF are used to obtain the stochastic responses of the tank in the form of coefficients of hydrodynamic pressure, base shear and overturning base moment for the largest expected peak responses. Parametric variations are carried out to study the effects of various governing parameters like height of liquid in the tank, height–radius ratio of the tank, ratio of total liquid mass to mass of foundation, and shear wave velocity in the soil medium, on the responses of the tank. Copyright © 2003 John Wiley & Sons, Ltd.
Wavelet‐based non‐stationary seismic rocking response of flexibly supported tanks
Chatterjee, Pranesh (author) / Basu, Biswajit (author)
Earthquake Engineering & Structural Dynamics ; 33 ; 157-181
2004-02-01
25 pages
Article (Journal)
Electronic Resource
English
non‐stationary , soil , wavelet , seismic excitation , tank , rocking
Wavelet-based non-stationary seismic rocking response of flexibly supported tanks
| Online Contents | 2004
Seismic response of flexibly supported anchored liquid storage tanks
| British Library Conference Proceedings | 2002
Seismic uplifting of flexibly supported liquid-storage tanks
| British Library Conference Proceedings | 1996
Seismic Response of Flexibly Supported Coupled Shear Walls
| British Library Online Contents | 1996
Base Uplifting Analysis of Flexibly Supported Liquid-storage Tanks
| Online Contents | 1995