scholarly journals A Study on the Earthquake Response Analysis of Concrete Liquid Storage Tanks Including Hydrodynamic and Foundation Interaction Effects.

2000 ◽  
pp. 47-61
Author(s):  
Hideaki NAKAMURA ◽  
Shingo MORIKAWA ◽  
Toshihiko ASO ◽  
Sumio HAMADA
Keyword(s):  
Interaction Effects ◽  
Earthquake Response ◽  
Response Analysis ◽  
Storage Tanks ◽  
Liquid Storage ◽  
Earthquake Response Analysis

Earthquake Response of Deformable Liquid Storage Tanks

1981 ◽  
Vol 48 (2) ◽  
pp. 411-418 ◽  
Author(s):  
M. A. Haroun ◽  
G. W. Housner
Keyword(s):  
Solution Technique ◽  
Earthquake Response ◽  
Response Analysis ◽  
Vibrational Modes ◽  
Storage Tanks ◽  
Liquid Storage ◽  
Wall Flexibility ◽  
Element Approach ◽  
Vibration Tests ◽  
Earthquake Response Analysis

A method for analyzing the earthquake response of deformable, cylindrical liquid storage tanks is presented. The method is based on superposition of the free lateral vibrational modes obtained by a finite-element approach and a boundary solution technique. The accuracy of such modes has been confirmed by vibration tests of full-scale tanks. Special attention is given to the cos θ-type modes for which there is a single cosine wave of deflection in the circumferential direction. The response of deformable tanks to known ground motions is then compared with that of similar rigid tanks to assess the influence of wall flexibility on their seismic behavior. In addition, detailed numerical examples are presented to illustrate the variation of the seismic response of two different classes of tanks, namely, “tall” and “broad” tanks. Finally, the significance of the cos nθ-type modes in the earthquake response analysis of irregular tanks is briefly discussed.

Two-Dimensional Nonlinear Earthquake Response Analysis of a Bridge-Foundation-Ground System

2008 ◽  
Vol 24 (2) ◽  
pp. 343-386 ◽  
Author(s):  
Yuyi Zhang ◽  
Joel P. Conte ◽  
Zhaohui Yang ◽  
Ahmed Elgamal ◽  
Jacobo Bielak ◽  
...  
Keyword(s):  
Lateral Spreading ◽  
Soil Liquefaction ◽  
Earthquake Response ◽  
Response Analysis ◽  
Fe Model ◽  
Two Dimensional ◽  
Foundation Soil ◽  
Soil Medium ◽  
Surface Plasticity ◽  
Earthquake Response Analysis

This paper presents a two-dimensional advanced nonlinear FE model of an actual bridge, the Humboldt Bay Middle Channel (HBMC) Bridge, and its response to seismic input motions. This computational model is developed in the new structural analysis software framework OpenSees. The foundation soil is included to incorporate soil-foundation-structure interaction effects. Realistic nonlinear constitutive models for cyclic loading are used for the structural (concrete and reinforcing steel) and soil materials. The materials in the various soil layers are modeled using multi-yield-surface plasticity models incorporating liquefaction effects. Lysmer-type absorbing/transmitting boundaries are employed to avoid spurious wave reflections along the boundaries of the computational soil domain. Both procedures and results of earthquake response analysis are presented. The simulation results indicate that the earthquake response of the bridge is significantly affected by inelastic deformations of the supporting soil medium due to lateral spreading induced by soil liquefaction.

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