アンボンドPC圧着架構に適用する新PCa床スラブシステムの開発と架構の構造耐震性能に及ぼす影響

概要

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In this study, a new PCa floor system for an unbonded prestressed concrete (PC) frame structure was developed. Deformation of unbonded PC structure is expected to concentrate in the joint between beam and column and, as a result, damage to structural members can be reduced during an earthquake. Floor slab applied to these structures is need to be provided with not only sufficient in-plane shear transfer capacity but also system to avoid confinement of opening of beam-column joint. For this purpose, three types of new PCa slab-beam joint system were proposed and loading tests of full scale specimens were carried out. It was shown that shear stiffness and strength in new joint system with shear cotter joint were almost same with those in conventional half PCa floor slab. Moreover, static and dynamic analysis of prototype frame structure were carried out. Comparing analytical results considering deformation in proposed floor slab with rigid floor, applicability of new floor slab system was discussed.
一般社団法人日本建築学会の論文
2009-03-27