Concepts

Seismic codes are regulations which have been developed with the scope to provide a first guideline to the engineer for earthquake resistant design of ordinary buildings. Common standard response spectra like the US building code or the EC 8 (see …

Event though peak ground acceleration is the most commonly used parameter used in seismic hazard analysis, it may happen that this value, taken by itself, becomes meaningless. The main reason resides in the fact, that the damage edifices may undergo …

On their way to the surface seismic waves undergo modifications through effects of geometric and inelastic attenuation as well as through reflection and refraction. In seismology these phenomena are treated mathematically with the so-called Green’s function. In the context of …

The description of the seismic source follows an approach proposed by Boore (1983). Boore’s method starts with the generation of a gaussian white noise. A window is applied to the noise which has the form


a is set to 1 …

Seismic source spectra in terms of displacement density[4] can be described in terms of a low pass filter, i. e., with a flat part at low frequencies, an intermediate part where the spectrum starts to decrease, and the high frequency …

Ground motion estimation for the purpose of seismic hazard and loading analysis may be eventually carried out in some empirical manner or on the basis of theoretical models. The empirical approaches consist essentially of the use of observed relations of …

The understanding of the earthquake source experienced a significant progress when it was recognized that their occurrence is tightly linked to tectonic activity (Süss, 1873, 1875). Indeed, the most prominent seismoactive zones are found along the midatlantic ridges, the …

The simplest description of the seismic source is the concept of a point source (see Fig. 1). Even though in contrast with common physical and geological concepts the point source is still used for certain purposes, such as earthquake geographics …

The understanding of the earthquake source experienced a significant progress when it was recognized that their occurrence is tightly linked to tectonic activity (Süss, 1873, 1875). Indeed, the most prominent seismoactive zones are found along the midatlantic ridges, the mountain …