Effects of hysteretic model on seismic demands: consideration of near‐fault ground motions

Abstract

This paper summarizes the results of a study that is to evaluate the structural response attributes of near-fault ground motion. Ground motion recordings from the Chi-Chi earthquake are used as inputs to the structural system. An improved nonlinear hysteretic model, based on the experimental study, was used to calculate the response of the single degree-of-freedom inelastic system. Comparison of the results of analysis with traditional elasticperfect plastic mode calculations was made. Discussions on the inelastic design spectrum, particularly the codespecified base shear coefficients, using the improved nonlinear hysteretic model incorporated with the near-fault input ground motion are made.

Comparison of dynamic response of isolated and non-isolated continuous girder bridges subjected to near-fault ground motions

“…Nakashima et al [9] examined the response behavior of steel moment frames subjected to near-fault ground motions recorded in recent earthquakes in Japan, Taiwan and the US, and found that the largest story drifts are all similar among Japanese, Taiwanese and the American near-fault records. Loh et al [10] carried out a series of experimental studies to develop a regression-based hysteretic model. They used this hysteretic model to study basin effect and near-fault effect of ground motion subjected to ChiChi earthquakes.…”

Progress and trend on near-field problems in civil engineering

“…It is only up to the 1994 Northridge earthquake and 1995 Kobe earthquake which occurred near the high-density urban regions has rekindled interest in near-field problems. From then on, the studies of near-field ground motion characteristics and implementations of seismic design procedures are very important topics both to the seismological and engineering communities (Loh et al, 2002).…”

Spectrum characterization of two types of long‐period ground motions and seismic behavior of frame‐core wall structures under multidimensional earthquake records

“…The seismic damage of long‐period structures would undoubtedly be tested by long‐period earthquake records in the future. Luckily, the resonant effect on long‐period structures acted by long‐period earthquake records has attracted wide attention from seismology and engineering scholars …”

“…Luckily, the resonant effect on long-period structures acted by long-period earthquake records has attracted wide attention from seismology and engineering scholars. [3,4] Currently, two types of ground motions in existing records are considered as special long-period earthquake records; [5] besides, one is nearfault pulse-like earthquake records, and the other is far-field harmonic earthquake records. Near-fault ground movement includes obvious rupture-…”