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Seismic Analysis and Design Using the Endurance Time Method, Volume I by Hasssan Vafai, Homayoon Estekanchi

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CHAPTER 6

ET ANALYSIS OF MDOFS

6.1 INTRODUCTION

The concept of Performance-Based Seismic Engineering (PBSE) is gaining increased interest among researchers and practitioners (Bertero and Bertero 2002).1 PBSE includes the concept that designs should be capable of satisfying various performance objectives, under a spectrum of design ground motions ranging from minor to severe. Due to inherent randomness in ground shaking, lack of knowledge in the precise definition of the structure’s characteristics, and inability to model the actual behavior accurately, estimation of seismic performance entails significant uncertainty (Taftali 2007).

Quantification of seismic demands for performance assessment implies the statistical and probabilistic evaluation ...

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