STUDY ON REINFORCING EFFECT OF SEISMIC RETROFIT CONSTRUCTION METHODS FOR FOUNDATION OF EXISTING WOODEN HOUSES

–Part 1 Bending tests of continuous footing foundation–

Abstract

In this study, bending tests of continuous footing foundation reinforced by the several kind of seismic retrofit constructions were carried out. The retrofit constructions used in this study were made by additional concrete casting and carbon fiber sheet reinforcing. The tests were carried out by the three-point bending that has 3.6m length spans. The specimens whose beam and footing retrofitted by the additional casting had equivalent seismic resistance as the reinforced concrete foundations. But the other specimens didn’t have enough seismic resistance.