Fundamental period of infilled reinforced concrete frame structures
- Authors: Asteris, P.; Repapis, C.; Repapi, E.; Cavaleri, L.
- Publication year: 2016
- Type: Articolo in rivista (Articolo in rivista)
- Key words: Fundamental period; infilled frames; masonry; modal analysis; regression analysis; reinforced concrete frame buildings; Civil and Structural Engineering; Geotechnical Engineering and Engineering Geology; Safety, Risk, Reliability and Quality; Building and Construction; Mechanical Engineering; Ocean Engineering
- OA Link: http://hdl.handle.net/10447/222432
Abstract
The fundamental period of vibration appears to be one of the most critical parameters for the seismic design and assessment of structures. In the present paper, the results of a large-scale analytical investigation on the parameters that affect the fundamental period of reinforced concrete structures are presented. The influence of the number of storeys, the number of spans, the span length, the infill wall panel stiffness and the percentage of openings within the infill panel on the fundamental period of infilled RC frames was investigated. Based on these results, a regression analysis is applied in order to propose a new empirical equation for the estimation of the fundamental period. The derived equation is shown to have better predictive power compared with equations available in the literature.