薄板軽量形鋼造建築物用ホールダウン金物の接合部耐カ

摘要

Light gage bearing wall is usually designed as a cantilever column. Therefore, due to over-turning moment from the upper floors, high axial force must be considered at the base. Hold-down components are used to connect the bearing wall to the foundation to resist these high axial forces; it is one of the most important seismic element to guaranty the structural safety. The purpose of this study is to clarify the connection strength of the hold-down component which is connected by drill screws. Finally, design formula than can evaluate the shear lap joint connected by drill screws was proposed, and the validity of the proposed formula was also demonstrated with the test results.%告示改正では，スチールハウスの階数制限が4階以内までに拡張されること，また鉄骨造や鉄筋コンクリート造と併用する場合は階数制限が緩和されることとなった。現行の設計方法では，建物階数が増えることで，連層耐震壁の脚部では，上階からの転倒モーメントにより，大きな引抜力が作用することになる。