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Computational aspects of a seismic performance test method using on‐line computer control
Author(s) -
Shing PuiShum B.,
Mahin Stephen A.
Publication year - 1985
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290130406
Subject(s) - displacement (psychology) , numerical integration , computer science , direct integration of a beam , algorithm , line (geometry) , numerical analysis , test method , structural engineering , engineering , mathematics , statistics , psychology , mathematical analysis , geometry , psychotherapist
Abstract The basic computational procedure of a newly developed seismic performance test méthod is presented and examined in this paper. This method uses a direct step‐by‐step integration technique to compute the displacement response of a test specimen subjected to a numerically specified seismic excitation record, utilizing the non‐linear restoring forces actually developed by the specimen during the experiment. Due to the limitations of the experimental procedure and conditions, special analytical assumptions and numerical methods must be adopted. The adequacy of such analytical techniques is evaluated and possible computational errors are identified. An improved numerical integration algorithm is also proposed for this specific application. It has been found that the method can be a reliable and powerful experimental tool provided appropriate analytical and numerical criteria, as discussed in this paper, are observed.