高靭性セメント複合材料を用いた杭根固め部の力学特性について

概要

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Recently, the research and development of ductile-fiber-reinforced cementitious composites (DFRCC) superior to existing composites has been actively conducted. DFRCC is a cementitious composite material reinforced with fibers, and it exhibits crack-dispersing properties under tensile, flexural or compressive stress. The use of DFRCC as an energy absorption device will reduce the seismic response of structures. Using DFRCC instead of concrete will also enhance the durability of reinforced concrete structures. In this study, to investigate the applicability of DFRCC to the pile-tip protection of precast piles, experiments and the finite element analysis of precast piles were conducted. Results suggest that the use of DFRCC for the pile-tip protection of precast piles improves the bearing ductility of the tip of precast piles. The present finite element analysis was able to simulate the effect of the use of DFRCC for the pile-tip protection of precast piles.
東海大学の論文