Građevinar, Vol. 65 No. 04., 2013.
Prethodno priopćenje
https://doi.org/10.14256/JCE.799.2012
Target acceleration in multimodal pushover method for R/C frames
Ivan Balić
; Sveučilište u Splitu, Fakultet građevinarstva, arhitekture i geodezije
Ante Mihanović
; Sveučilište u Splitu, Fakultet građevinarstva, arhitekture i geodezije
Boris Trogrlić
; Sveučilište u Splitu, Fakultet građevinarstva, arhitekture i geodezije
Sažetak
The procedure of searching the target ground acceleration as a measure of the lowest seismic resistance is presented in the paper. This objective is achieved by the multimodal pushover analysis based on the envelope principle. The pushover method founded on the linear combination of modes (L), and on mode combinations as a square root of the sum of the squares (SRSS), is presented. Examples of 5-storey and 9-storey R/C frames point to a highly significant influence of higher modes. The failure ground acceleration in multimodal pushover analysis is significantly lower, and even several times lower, compared to the single mode acceleration.
Ključne riječi
pushover method; combining of modes; R/C frame; target acceleration; general failure force vector
Hrčak ID:
101024
URI
Datum izdavanja:
3.5.2013.
Posjeta: 2.025 *