施工を考慮した外管杭を有する耐震杭の水平挙動

概要

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An earthquake-proof pile composed with a main pile and a short outer sheath pile has been proposed by the authors. This outer sheath pile was isolated from the main pile. On the other hand, in this study, a roller mechanism is inserted between the main pile and the outer sheath pile in the tip position of the latter pile, in order to secure clearance between both piles during construction. This paper presents the calculation result of the earthquake-proof pile, which is composed with a PHC-pile(main pile) and a steel pile(outer pile), to study the role of the coupling condition of the outer sheath pile tip, as mentioned above. These results suggest that the bending moment in the main pile and the horizontal deformation of the earthquake-proof pile with a roller coupling could be decreased remarkably in comparison with an isolated main pile, even if the outer sheath pile length is so short as 2.5m.
一般社団法人日本建築学会の論文
2001-03-20