Inelastic Effective Length Factors for Columns in Unbraced Frames
The use of effective length factors in the design of columns in frames is quite widespread in the USA. Thus, the latest AISC Allowable Stress Design Specification and the recently adopted AISC Load and Resistance Factor Design Specification include effect
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STABILITY PROBLEMS OF STEEL STRUCTURES
EDITED BY
M.IVANYI TECHNICAL UNIVERSITY OF BUDAPEST
M.SKALOUD CZECHOSLOVAK ACADEMY OF SCIENCES
Springer-Verlag
8'
Wien GmbH
Le spese di stampa di questo volume sono in parte coperte da
conbibuti del Consiglio Nazionale delle Ricerche.
This volume contains 337 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. © 1992 by Springer-Verlag Wien Originally published by CISM, Udine in 1992.
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 978-3-211-82398-9 ISBN 978-3-7091-4332-2 (eBook) DOI 10.1007/978-3-7091-4332-2
PREFACE
The need to save steel has led to the development of new kinds of steel structures. New types of frames and bar systems, thin-walled plated structures and shells play a very important part among them. However, their successful practical application requires adequate scientific data for reliable design. It is therefore not surprising that a great number of research teams in various parts of the world (the authors playing a very important role in these activities) have directed, for a good many years, their attention to investigations into the stability problems of the above structures, since it is very frequently these phenomena which in the case of currently used thin-walled constructional steelwork govern design.
For this reason, an International Advanced School on "Stability Problems of Steel Structures" was held at the International Centre for Mechanical Sciences in Udine with the view to give complete information about all aspects of the design of up-to-date steel (i) frames and bar systems, (ii) plated structures, and (iii) shells from the point of view of buckling. In following this aim, the course presented not only complete scientific background, but also established recommendations, procedures and formulae for practical design, profiting also from the fact that over the last years the invited lecturers took part in the preparation of several national and international Design Codes for structural steelwork.
Thus the course, challenging current concepts and encouraging progress in the field, aimed at establishing newly developed advanced guidelines to design, thereby making constructional steelwork more economic and, consequently, more competitive with respect to structures made of other materials.
The objective of this monograph is to summarize the most important parts of the lectures presented during the aforementioned International Advanced School and thus substantially enlarge the very positive results and impact of the School.
The monograph will therefore be of intere
