低強度コンクリートを有する既存RC建物の耐震補強に用いるあと施工アンカーの引張およびせん断強度に関する基礎的研究

概要

論文の詳細を見る
Post-installed anchor is widely-spread for the seismic retrofit in existing RC buildings. However, there has been no work that tried to reinforcement the existing RC buildings with very low-strength concrete of 13.5N/mm2 or less in compressive strength. Therefore, Little attention has been given to the strength of post-installed anchor for very low-strength concrete. In this research, we confirmed the tensile strength and shear strength of 15 kinds of bonded anchor and 1 kinds of mechanical expansion anchor for very low-strength concrete through the structural test. From the structural tests, it made clear that the rigidity and the strength to tensile force of mechanical expansion anchor are inferior to that of bonded anchor, and strength of bonded anchor to shear force is larger though the rigidity of mechanical expansion anchor and bonded anchor is almost equal. In addition, it was shown that tensile strength and shear strength for very low-strength concrete can be estimated by JBDPA standard.
一般社団法人日本建築学会の論文
2011-03-25