This article presents a system identification analysis of a soil-structure interaction model with coupled horizontal and rocking response based on a combination of Fourier analysis, wave travel-time analysis, and a relationship between fixedbase, rigid-body, and system frequencies. The study provides insight into the coupling of the structural and soil vibrations useful for interpretation of se...

There is a worldwide interest in the proper design of embankment dams to resist earthquake loadings. For the first time in Iran, a complete ambient vibration survey due to low-level loads such as wind, machinery activities, low level tectonic activities, and water exit from bottom outlet was performed on Marun embankment dam. These kinds of ambient vibration tests are suitable for manifesting t...

There is a worldwide interest in the proper design of embankment dams to resist earthquake loadings. For the first time in Iran, a complete ambient vibration survey due to low-level loads such as wind, machinery activities, low level tectonic activities, and water exit from bottom outlet was performed on Marun embankment dam. These kinds of ambient vibration tests are suitable for manifesting t...

With the help of GPS and measuring instrument of soil moisture, soil moisture was measured and analyzed. As using Geo-statistics to the study of spatial variability of soil moisture and use ArcGIS 9.0, get the spatial distribution map of soil water property with Kriging interpolation. The research result showed that all soil spatial characters are normal distribution and the spatial distributio...

In this study, the monotonic and cyclic behavior of an offshore wind turbine with a monopile foundation installed in sand layer were evaluated centrifuge. A simplified was modeled, lateral load applied to tower under displacement control. The loading test ultimate capacity bending moment profiles different levels. During loading, variations moment-rotation responses, stiffness, moments along pi...

In this report, the author first describes the design of a portable model foundation loading device capable of applying square wave impulses with forces up to 1200 lbs. for durations between 10 and 120 milliseconds. The model loading device is used to simulate the load on the non-recoiling parts of a howitter foundation in both sands and clays. An important part of this program is the compariso...