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Soil-structure interaction effects for laterally excited liquid-tank system
Yu Tang,A.S. Veletsos +1 more
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In this paper, the effects of both kinematic and inertia interaction effects on the response of the tank-liquid system are examined and elucidated, and it is shown that the major reduction of the response is attributed to inertia interaction.Abstract:
Following a brief review of the mechanical model for liquid-storage tanks which permits consideration of the effects of tank and ground flexibility, and lateral and rocking base excitations, the effects of both kinematic and inertia interaction effects on the response of the tank-liquid system are examined and elucidated. The free-field motion is defined by a power spectral density function and an incoherence function, which characterizes the spatial variability of the ground motion due to the vertically incident incoherence waves. The quantities examined are the ensemble means of the peak values of the response. The results are compared with those obtained for no soil-structure interaction and for kinematic interaction to elucidate the nature and relative importance of the two interactions. Only the impulsive actions are examined, the convective actions are for all practical purposes unaffected by both kinematic and inertia interactions. It is shown that the major reduction of the response is attributed to inertia interaction. 20 refs.read more
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Guidelines for the Seismic Design of Oil and Gas Pipeline Systems
TL;DR: In this paper, the authors present current knowledge on the practice of earthquake engineering for oil and gas pipeline systems, which typically consist of buried oil, gas, or product pipelines and aboveground facilities, including pumping and compressor stations, storage tanks for hydrocarbon products, and miscellaneous terminal facilities.
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Seismic Analysis of Open-Top Storage Tanks With Flexible Foundation
TL;DR: In this paper, the behavior of aboveground storage tanks subjected to seismic excitation was investigated using numerical methods by taking flexibility of foundation into account, and the effect of foundation flexibility from the practical design point of view may be neglected for broad tanks, but should be considered for nominal and slender tanks.
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A mechanical model for soil-rectangular tank interaction effects under seismic loading
TL;DR: In this article, an analytical mechanical model for a rectangular tank with flexible walls, taking into account the effects of rigid-base rocking motion and lateral translation, is developed to evaluate the system's response to ground earthquake motions.
References
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Stochastic Variation of Earthquake Ground Motion in Space and Time
TL;DR: In this paper, the ground motion during a specific earthquake event is conceived as the realization of a space-time random field and accelerograms recorded by the SMART 1 seismograph array in Lotung, Taiwan are examined to determine the frequency-dependent spatial correlation of earthquake ground motions.
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Response of a rigid foundation to a spatially random ground motion
J. E. Luco,H. L. Wong +1 more
TL;DR: In this article, the authors investigate the effect of coherence spatiale particuliere on the performance of a mouvement du sol spatialement aleatoire in terms of its ability to produce effets similaires aux effets deterministes.
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Structural Response to Stationary Excitation
TL;DR: In this article, the first three spectral moments of response to white noise and filtered white noise inputs are derived in terms of cross-modal contributions and explicitly account for the correlation between modal responses of multi-degree structures.
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Vibration of viscoelastic foundations
Anestis S. Veletsos,B. Verbič +1 more
TL;DR: In this article, simple approximate solutions are presented for the steady-state response of rigid, circular foundations which are supported at the surface of a linear viscoelastic half space and are excited by a harmonically varying torque.
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Seismic Interaction of Structures and Soils: Stochastic Approach
TL;DR: In this paper, a study of soil-structure interaction for seismically excited simple structures is made considering both kinematic and inertial interaction effects and the information and concepts presented elucidate the nature and relative importance of the two effects and make it possible to assess readily the influences of the more important parameters.