面外繰返し荷重を受ける鋼箱型断面アーチの載荷実験

Abstract

There are less information about the load-displacement behavior of steel arches when they suffer out-of-plane horizontal repeated forces from heavy earthquake ground motion. In this study, the arches with steel box sections having two kinds of plate width-thickness parameters and reinforcing at concrete to the base of arch are tested under constant vertical loading and repeated horizontal loading, simultaneously. Loading system is newly developed for this test. Various problems and the technique of improving those, that occur during the experiment are presented. The simple method to eliminate the rigid motion from the measured data is proposed.