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Earthquakes and Structures
  Volume 4, Number 2, February 2013, pages 157-179

Seismic demand estimation of RC frame buildings based on simplified and nonlinear dynamic analyses
B. Borzi, M. Vona, A. Masi, R. Pinho and D. Pola

    Vulnerability studies on the existing building stock require that a large number of buildings is analyzed to obtain statistically significant evaluations of the seismic performance. Therefore, analytical evaluation methods need to be based on simplified methodologies of analysis which can afford the treatment of a large building population with a reasonable computational effort. Simplified Pushover-Based Earthquake Loss Assessment approach (SP-BELA), where a simplified methodology to identify the structural capacity of the building through the definition of a pushover curve is adopted, was developed on these bases. Main objective of the research work presented in this paper is to validate the simplified methodology implemented in SP-BELA against the results of more sophisticated nonlinear dynamic analyses (NLDAs). The comparison is performed for RC buildings designed only to vertical loads, representative of the
Key Words
    vulnerability; existing buildings; reinforced concrete; nonlinear dynamic analyses; simplified methods
B. Borzi: Eucentre, European Centre for Training and Research in Earthquake Engineering, Pavia 27100, Italy; M. Vona and A. Masi: School of Engineering, University of Basilicata, Potenza 85100, Italy; R. Pinho and D. Pola: Department of Structural Mechanics, University of Pavia, Pavia 27100, Italy

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