高橋脚を有するラーメン橋の振動特性と地震応答解析(都市基盤デザイン工学科)

Abstract

In this paper, we describe a vibration experiment and seismic response analysis of rigid frame bridge having a height pier. We explain about substances of the vibration experiment. We explain the natural frequencies, the natural modes and the damping constants that obtained by the vibration experiment. We modeled the rigid frame bridge to be able to express the vibration characteristics provided by the vibration experiment and examined the propriety of a model. In seismic response analysis, we used acceleration wave of Hyogoken-Nanbu Earthquake and examined behaviors the dynamic response characteristic such as displacement and bending moment of rigid frame bridge.