Dynamic behavior of ground supported cylindrical storage tanks (CST) is of crucial importance because of its applications in industrial complexes. Seismic behavior of tanks is greatly affected by the height to diameter ratio, fluid height and fluid type. Five CSTs with different height to diameter ratios, three CSTs with the same height and diameters but various fluid heights and one CST with t...

Revolutionary changes which have taken place in the USA over the past 50 years in earthquake engineering as applied to transportation structures (highway bridges, and transit and high-speed rail aerial structures) are reviewed, giving emphasis to seismic design criteria, characterization of seismic ground motions, dual strategy of seismic design, modelling and dynamic analysis, assessment of se...

We propose an efficient iterative curvelet-regularized deconvolution algorithm that exploits continuity along reflectors in seismic images. Curvelets are a new multiscale transform that provides sparse representations for images (such as seismic images) that comprise smooth objects separated by piece-wise smooth discontinuities. Our technique combines conjugate gradient-based convolution operat...

dynamic behavior of ground supported cylindrical storage tanks (cst) is of crucial importance because of its applications in industrial complexes. seismic behavior of tanks is greatly affected by the height to diameter ratio, fluid height and fluid type. five csts with different height to diameter ratios, three csts with the same height and diameters but various fluid heights and one cst with t...

In either elastic or dissipative seismic design of structures, key issue is the optimal design of the lateral load resisting system. Beside the basic effort to provide economical structure, proper overall behaviour with global ductility cannot be achieved without optimized design of the seismic resistant system. In this paper, development of a numerical optimization algorithm is presented and –...

To evaluate the seismic performance of pre-cast concrete shear wall with vertical reinforcements spliced by two different grout ways, quasi-static tests of two concrete shear walls holed by prefabricated corrugated pipe and one concrete shear wall holed by drawing out the pipe were tested. The test results showed that the wall holed by prefabricated corrugated pipe was basically the same as the...

Reservoir engineers have to predict the behavior of a hydrocarbon reservoir by building a simulation model which can reproduce as best as possible the data collected on the field. These data fall into two types: static data, which are invariable in time, and dynamic data, which evolve according to fluid motions in the reservoir. In this paper, we focus on the integration of dynamic data related...

Alignment of seismic traces is a recurring need in seismic processing and interpretation. For global alignment via static shift there are robust tools available, including cross correlation. However, another kind of alignment problem arises in applications as diverse as associating synthetic seismograms to field data, harmonizing P-wave and mode converted data, final multilevel flattening of co...

This paper presents the formulation and implementation of a new static push-over analysis algorithm for the seismic rehabilitation of building frames, in accordance with “NEHRP Guidelines for the Seismic Rehabilitation of Buildings”. The concept of the push-over analysis is described and problems associated with its implementation in a nonlinear finite element program are examined. Earlier work...

The objective of present study is to develop a finite element method (FEM) software system toward a large-scale computation of following seismic processes: (1) Accumulation of the stress around active faults in the crust, which is induced by a subduction of plates in a long time span (static deformation process); (2) Onset of an earthquake due to a dynamic sliding on the faults, which is induce...