Abstract
This paper is devoted to develop a numericaml ethod using fiber model and explicit time integration scheme for the seismic response analysis of RC rahmens tructures. The fiber model is applied to acquire the sectional forcedeformation relations. RC cross sections are divided into multi-layers of concrete and steel bar.Nonlinear properties of steel bar and concrete are introduced between adjacent rigid elements. Numerical calculations for a RC Rahmen structure are carried out under the observed ground accelerations at Hyogoken Nanbu Earthquake (Kobe, 1995), and nonlinear dynamic propertieos of deformation and resultant force are discussed in detail.
