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Calculation of Earthquake Actions on Building Structures
in Australia
N.T.K. Lam
University of Melbourne, Australia
B.A. Gaull
Guria Consulting, Western Australia
J.L. Wilson
Swinburne University of Technology, Melbourne, Australia
ABSTRACT: This paper presents from first principles methods of evaluating the seismic
performance of a building using the method of inertial forces, method of maximum
energy and method of maximum displacement. The introduction of these methods forms
the main thrust of the paper. Importantly, the building can be deemed safe should this be
indicated by any one of the three methods none of which requires the natural period of the
building nor structural response factors to be estimated. Whilst these methods are very
simple and consume little time to apply, the accuracies of the results are comparable with
those from response spectrum methods. It is noted that the fundamental basis of each of
these methods is very consistent with the new response spectrum model stipulated by the
new Australian standard for seismic actions. A succinct and insightful account of the
development of the seismic hazard model for Australia is also provided followed by a
commentary on the use of dynamic analysis methods in practice |
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