Introduction to Structural Dynamics
This document deals with modal analysis under dynamic loading. It is assumed that all masses are concentrated in mass particles and a lumped mass system is used for the simulation of the structure. The solutions are given using the modal analysis method.
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Series Editors: The Rectors of CISM Sandor Kaliszky- Budapest Mahir Sayir - Zurich Wilhelm Schneider - Wien The Secretary General of CISM Giovanni Bianchi - Milan Executive Editor Carlo Tasso - Udine
The series presents lecture notes, monographs, edited works and proceedings in the field of Mechanics, Engineering, Computer Science and Applied Mathematics. Purpose of the series is to make known in the international scientific and technical community results obtained in some of the activities organized by CISM, the International Centre for Mechanical Sciences.
INTERNATIONAL CENTRE FOR MECHANICAL SCIENCES COURSES AND LECTURES - No. 359
PROTECTION OF THE ARCHITECTURAL HERITAGE AGAINST EARTHQUAKES EDITED BY
V.PETRINI POLYTECHNIC OF MILAN M.SAVE POLYTECHNICAL UNIVERSITY OF MONS
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Springer-Verlag Wien GmbH
Le spese di stampa di questo volume sono in parte coperte da contributi del Consiglio Nazionale delle Ricerche.
This volume contains 189 illustrations
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. © 1996 by Springer-Verlag Wien Originally published by Springer-Verlag Wien New York in 1996
In order to make this volume available as economically and as rapidly as possible the authors' typescripts have been reproduced in their original forms. This method unfortunately has its typographical limitations but it is hoped that they in no way distract the reader.
ISBN 978-3-211-82805-2 DOI 10.1007/978-3-7091-2656-1
ISBN 978-3-7091-2656-1 (eBook)
PREFACE
This book devoted to the protection of our architectural heritage from earthquakes has its distant origin in a series of lectures held one week in December 1985 at the "European University Center for Cultural Heritage" in Ravello, Italy, followed by a second, similar series in early 1987, and then by various smaller seminars. These meetings, organized by archeologists and seismologists, were of wide scope, bringing together specialists representing many various fields: archeology and seismology, of course, but also history, sociology, urbanism, architecture, and engineering. From the discussions during the meetings, it appeared that the vulnerability of cultural artifacts to earthquakes had to be considered the problem of a "system", composed not only of the constructions involved (with their morphological, historical, and structural aspects), but also of the community using these buildings, or, more generally, these cultural artifacts (with its culture, methods of construction and maintenance, capacity of reaction to earthquakes, etc.). Examining the problem in this context, it proved possible to define some of the elements that may influence the vulnerability of the "system" and consequently a program of operation, namely: - the possibility of representing the constructions concerned by satisfactory structural mode Is; - the know
