Abstract
High-performance aramid fiber sheets are a new class of composite materials composed of weaved polyamide fibers. This seismic performance and failure behavior of timber column–ground sill joints reinforced with aramid fiber sheets were investigated. We conducted bending tests under cyclic loading for three column– ground sill specimens. The maximum bending moments were estimated using a simple method and compared with the experimentally obtained moments. After reinforcement with aramid fiber sheets, joint strength improved but was dependent on the sheet-attaching form. Moreover, it is remarkable to break from peeling sheet. Further, the proposed sheet-attaching form (with widened crossing sheets) exhibited a higher restoring force than did the conventional form because of sheet is further away from the center of rotation.
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