This paper is concerned with the problem of soil ampliication and structural damage due to local site conditions in sedimentary valleys during earthquakes. It focuses on a small valley in Kirovakan, for which one dimensional (1D) wave propagation analyses have failed to provide adequate answers for the large extent and spatial distribution of damage during the 1988 Armenia Earthquake. A more re...

This paper is concerned with the problem of soil ampli cation and structural damage due to local site conditions in sedimentary valleys during earthquakes. It focuses on a small valley in Kirovakan, for which one dimensional (1D) wave propagation analyses have failed to provide adequate answers for the large extent and spatial distribution of damage during the 1988 Armenia Earthquake. A more re...

The paper presents the results of calculating vibrations soil strata using ZOND- (linear) program. Accelerograms earthquakes recorded in Tbilisi (12/14/2000) and Athens (09/7/1999) on rocky soils were set as a standard seismic action bedrock loose layer. maximum amplitudes records real spectrum areas considered movement indicators. ratios presented indicators to corresponding values initial cal...

A set of time-synchronized strong-motion accelerograms, obtained on the San Juan Bautista 156/101 Separation Bridge in California during the 6 August 1979 Coyote Lake earthquake (ML = 5.9), are used to study the spatial variation of ground motion at the bridge site, including traveling wave effects and the influence of multiple-support excitation. Analysis of the ground motion recorded at the b...

Abstract A comparative analysis of the solutions for seismic impact on a flexible retaining wall designed to strengthen construction excavation multi-storey building in Sofia has been performed. For this purpose, following FEM calculation models interaction with surrounding soil body were compiled: (1) 1D beam-column-spring model wall, including spring support its embedded length and pseudostat...