構造物調査・診断(2)

[V-657] Study on Influences to RC Members due to Defects based on Static Loading ExperimentsPart 1: Overview and Methods of Experiments

〇Yilong CAO CAO¹, Hidekazu Nishimura¹, Akihiko Nishimura², Wendong Tang², Xiu Luo³, Masao Okoshi³ (1.Keio University, 2.Nishimura Seismic & Disaster-prevention Research Institute, 3.JR Soken Engineering)

Keywords:RC Member, Maintenance, Static-loading Expriment, Defect, Deformation Performance, Load-carrying Capacity

This study investigated the influences on load-carrying capacity and deformation performance of RC members, which were caused by exfoliation of RC covers or deterioration of re-bars. The study was based on loading experiments which took an integrity beam and several beams with different defects as objects. Furthermore, the relationships between stiffness and natural frequency of the beams were grasped by using impact vibration test corresponding to each loading event. This paper describes the overview of the study, the method of experiment, as well as the case setting etc.