What Information Is Needed To Design
Anti-seismic Structures?
Author(s)
P. Clemente, D. Rinaldis, G. Bongiovanni & F. Saitta
Abstract
Our knowledge about earthquakes and their effects on structures is still not
satisfactory. But what do structural engineers need in order to design antiseismic
buildings? As is well known, the first step in any structural design is the
analysis of loads and, among these, the seismic input is an important issue. This
is defined by means of a basic hazard analysis and the local seismic response.
The uncertainties about the local seismic response could be more important than
those relating to the basic analysis results. The second step is the structural
modeling, where the suitability depends on how good is the description of the
material behavior and the structural behavior both in the elastic and inelastic
range. Knowledge of these is very important in order to define the behavior
factor, which is a measure of the inelastic capacity of the building, i.e., its
capacity to dissipate energy. Some recent seismic events in the world have
questioned several assumptions of the present design rules, prescribed by the
seismic codes. In this paper some issues about the anti-seismic structural design
are discussed in order to give some proposals to improve our way of thinking
about structural safety against earthquakes.
Keywords:
structural safety, technical codes, seismic hazard, new anti-seismic
technologies.
Keywords
structural safety, technical codes, seismic hazard, new anti-seismic
technologies
Related Book
Other papers in this volume
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