West Africa is considered a region of low seismicity. However, the monitoring earthquake activity by local seismic arrays began very early (as as 1914) in but catalogs are incomplete. In 1991, Bertil studied seismicity based on networks stations Ivory Coast and neighboring countries. The reference work Ambraseys Adams well recent earthquakes given international data centres were also used for c...

Failure of the quay walls due to earthquakes results in severe economic loss. Because of hazards threatening such inexpensive nodes of national and international transportation networks, seismic design of quay walls is still an evolving topic in marine structural engineering. This study investigates the sensitivity of the gravity-type quay wall stability respect to uncertain soil and seismic pr...

bridges, as an essential part of transportation system, play a special role in economy, politic and military all around the world. serviceability of bridges is of high importance especially in emergencies, helping injured people and proportioning transportation after earthquakes. earthquake regulation codes, normally suggest linear methods to conduct the analysis, and nonlinear analysis is bare...

according to non-existence of accurate inspection tools on various steps of design and construction of buildings in the past, also due to any change in function of some structures and finally of seismic activities of residential regions of the country, vulnerability assessment of existing structures is necessary. evaluation of vulnerability of the structures is classified in two categories, qua...

Disaster management processes are generally characterizing real world as composition of various criteria to overcome damage consequences. This situation usually entails development of hypotheses based on epistemic and multi-criteria treatments. These hypotheses have to be properly structured using logics which somehow handle uncertainties like fuzzy logic. One of the properties of geospatial in...

To address the disadvantage of traditional methods providing only two-dimensional (2D) damage change of the collapsed buildings, this paper presents an approach for the detection of the buildings that have collapsed in an earthquake based on 3D geometric changes, particularly height change of the buildings, using preand post-seismic IKONOS stereo image pairs. One of the critical issues – the ac...

The Bolu viaduct is a 2.3 km long seismically isolated structure whose construction was nearly complete when it was struck by the 1999 Duzce earthquake in Turkey. It suffered complete failure of the seismic isolation system and narrowly avoided total collapse due to excessive superstructure movement. This paper presents an evaluation of the design of the viaduct’s seismic isolation system and a...