作者: Martín Domizio , Daniel Ambrosini , Oscar Curadelli
DOI: 10.1016/J.ENGSTRUCT.2017.02.031
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摘要: Abstract In the context of seismic engineering, reliable modeling methodologies are needed to represent nonlinear dynamic behavior structures under effect action. Only in this way is it possible assess safety margin against structural collapse. However, case reinforced concrete (RC) structures, numerical still presents difficulties due complex material behavior. The aim paper evaluate capability with solid finite elements a strongly response A second objective obtain guidelines for study was performed order reproduce RC frame tested by Elwood and Moehle (2003) on shaking table at University California, Berkeley (USA). model that employs shear failure surface proposed Ottosen (1977) selected non-linear concrete. This has several parameters define their behavior, which includes crack width tensile stress decreases zero after strain softening process. parameter based erosion limit were subjected calibration. During calibration process, degree numerical-experimental similarity established along conclusions about sensitivity variations calibrated parameters. Finally, can be concluded reproduces sufficient accuracy. Moreover, explicit time integration scheme shown appropriate type problem strong nonlinearities degradation