プレストレストコンクリート橋脚の小型モデルによる残留変位に与える横拘束鉄筋の影響

概要

論文の詳細を見る
The object of this study is to clarify the effects of pie-stress and confinement on the ultimate strength and deformations of pie-stressed concrete small column models subjected to Kobe earthquake-like conditions. Six small specimens were tested on a shaking table. The size of cross-section used was 75mm×75mm on a 1/18-scaled model Peak table acceleration was increased up to the collapse limit state. Horizontal and vertical waves simulating the scled-down acceleration of the Kobe erthquake were applied simultaneously. Based on the test results, the envelope curves of load-response displacements were examined. It was shown that the observations made in this study confirm the correctness of test results performed on the 1/18 scaled models. As for residual displacement, when the acceleration level was not reached up to the yield point of longitudinal reinforcement at the column base, adequate confinements were required. But after peak load, the over confinements(>0.18%) were not efficient because of strain intensity in the longitudinal steel at the column base.
中部大学の論文
2005-12-15