Connection Characteristics In Seismic Proof
Steel Construction
Author(s)
P. Brož
Abstract
The evaluation of steel structures damaged by earthquakes in the last decade
(e.g., in Northridge, CA, U.S.A. (1994) and in Kobe, Japan (1995)) has
contributed considerably to the improvement of the design of structures and
especially details relating to their ductility and to the dissipation of energy. An
analysis of research results led to significant corrections of codes, guidelines and
instructions. It was necessary to re-evaluate and extend the content of
corresponding codes currently based on Allowable Stress Design (ASD), plus the
Load and Resistance Factor Design (LRFD) method. This paper is a brief
comment on the substance of the reliability assessment of selected structural
details with respect to the dissipation of energy corresponding to the repeated elastoplastic deformation caused by earthquakes. The application of the
probabilistic methods is also indicated.
In research increasing attention is paid to the structural steel components
exposed in case of earthquake to elastoplastic reversals. Such components serve
as energy devices and their design and reliability assessment requires a special
approach. The paper gives substance to the evaluation of the structural response
to the earthquake, the actual behaviour of exposed details and the principles of
safety assessment.
Keywords: beam-to-column connections, ductile damage, energy dissipation,
joint characteristics, moment-rotation response, quasistatic failure, response
damping.
Keywords
beam-to-column connections, ductile damage, energy dissipation,
joint characteristics, moment-rotation response, quasistatic failure, response
damping.
Related Book
Other papers in this volume
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