Bow String Archの提案と実験概要

RCFT (Reinforced concrete filled tube) is the CFT reinforced by rebar in confined concrete, is aimed improvement of ductility of CFT. RCFT structure has high ductility against compression force and is superior in rehabilitation against repeated bending moment load through the element test executed by The Hachinohe Institute of Technology. Concrete filled tube structure is better to apply in the condition working bending moment under high completion force. In this paper, as the structure is made the best use of these characteristics, Advantage of bow string arch with RCFT is reported and introduce model test