主筋を基礎に定着しない場所打ちコンクリート杭の構造性能 筆者らは,これまでに杭主筋を基礎に定着しない杭頭接合法の研究・開発を進めてきた.この杭頭接合法は,地震時に杭頭部に生じる応力を従来(剛接合)よりに低減できるため,杭体の変形性能の向上および基礎梁・基礎マットの合理化が可能となっている.
|
Structural performance of pile-foundation joint without anchorage of pile rebar In this report, structural tests on cast-in-place R/C pile without anchorage of pile rebar are reported. This pile head-foundation joint were formed in a cone to control the rotation. Several of specimens were five that changed detail of the pile head-foundation joint. According to the test results, this pile head-foundation joint had the superior deformation capacity and it was clarified that it could reduce the damage of this joint. So the cast-in-place R/C pile without anchorage of pile rebar could streamline the foundation-beam and mat.
|