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A unified earthquake‐resistant design method for steel frames using arma models
Author(s) -
Takewaki Izuru,
Conte Joel P.,
Mahin Stephen A.,
Pister Karl S.
Publication year - 1991
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.4290200508
Subject(s) - seismic analysis , probabilistic design , generality , optimal design , stiffness , design methods , moment (physics) , engineering design process , design process , engineering , computer science , structural engineering , mathematical optimization , mathematics , mechanical engineering , work in process , psychology , operations management , physics , classical mechanics , machine learning , psychotherapist
The objective of this paper is to develop a unified earthquake‐resistant design method for moment‐resisting steel frames, including the design earthquake via a dynamic ARMA model. Important features of this design method are: (i) to make it possible to incorporate inherent uncertain features of design earthquakes into the design process itself through the dynamic ARMA model, (ii) to provide a simplified design formula for a preliminary design of moment‐resisting steel frames based upon the concept of stiffness‐oriented design and (iii) to facilitate the formulation of a new probabilistic multi‐objective optimal design problem aimed at finding the design with the minimum level of designer's dissatisfaction. In this optimal design problem, constraints and objectives are handled in a unified manner after a feasible design is obtained. A design example is presented to demonstrate the validity of this unified design method and to examine the convergence of response statistics. Finally, the generality and practicality of this design method are assessed.