高強度せん断補強筋を用いた場所打ちRC杭の破壊性状に関する実験的研究

概要

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The southern Hyogo earthquake occurred in 1995. RC pile is constructed. When up- structure is not carried out yet, it suffers a great deal of damage, the crack arose to RC pile. This example is made into the start, there are many examples which the damage on pile head, and the damage on a pile arose in a subterranean deep position produced. By the view of the present condition which assumed only the inertia power of up structure as external force for a design in case of the earthquake of a pile, these cannot be explained. On the Soft ground which consists of a multi-layer and the ground where the rigidity of a stratum changes, it has turned out that it is so large that the influence of the pile-stress [in case of the earthquake] cannot be disregarded. High-Strength Shear Reinforcement which is used for this time was not used for the conventional pile because it was expensive. In this research, High-Strength Shear Reinforcement is arranged in the shape of spiral. A pitch and axial force are changed and it studies what kind of result is obtained. If a fixed result can be obtained, it will consider earthquake-proof that a intensity structure is made by using it for RC pile from now on.
福山大学の論文