軽量引張鋼棒と鋼板を組み合わせた低負荷な鋼骨組耐震補強機構の提案

Abstract

The objective of this research is to develop a rehabilitation technique which can be easily installed to existing steel frames with minimal-disturbance. An unique approach to design a supplemental load-resisting system using light tension-only rods is adopted. Key structural features of the proposed technique are to reduce tensile stress at critical sections as bottom flange near beam-column connection and to add supplemental stiffness, strength and damping without significantly changing the properties of a original framing. Numerical simulations and experimental tests were conducted to verify the behavior of the developed technique.