Seismic response of nonstructural components in case of nonlinear structures based on floor response spectra method |
| |
Authors: | Marcelo Oropeza Pascale Favez Pierino Lestuzzi |
| |
Institution: | 1.IIC-Civil Engineering Institute, EPFL-école Polytechnique Fédérale de Lausanne,ENAC-IIC-ENAC Batiment GC,Lausanne,Switzerland |
| |
Abstract: | This paper investigates the response of nonstructural components in the presence of nonlinear behavior of the primary structure
using floor response spectra method (FRS). The effect of several parameters such as initial natural frequency of the primary
structure, natural frequency of the nonstructural components (subsystem), strength reduction factor and hysteretic model have
been studied. A database of 164 registered ground acceleration time histories from the European Strong-Motion Database is
used. Results are presented in terms of amplification factor and resonance factor. Amplification factor quantifies the effect
of inelastic deformations of the primary structure on subsystem response. Resonance factor quantifies the variation of the
subsystem response considering the primary structure acceleration. Obtained results differed from precedent studies, particularly
for higher primary structure periods. Values of amplification factor are improved. Obtained results of resonance factor highlight
an underestimation of peak values according to current design codes such as Eurocode 8. Therefore a new formulation is proposed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|