WALL STRUCTURE, AND REINFORCEMENT TOOL OF SUBSTRATE RAIL

To improve fire resistance of a wall having a cutout in a substrate rail.SOLUTION: A wall structure (1) comprises: a panel frame fixed to a structural skeleton including columns; braces stretched between the columns; a substrate rail (12) extending in a vertical direction and having a cutout (31) in an interference portion with the brace; and a reinforcement tool (4) reinforcing the substrate rail. The reinforcement tool includes: a support member (41) attached to a vertical frame portion (23a) of the panel frame; an engaging member (42) engaging with a general portion (32) adjacent to the cutout in a vertical direction; and a connecting member (43) connected to the support member and the engaging member and maintaining a spacing between the support member and the engaging member.SELECTED DRAWING: Figure 5 【課題】下地桟に切欠き部が設けられた壁の耐火性能を向上させること。【解決手段】壁構造（１）は、柱を含む構造躯体に固定されたパネルフレームと、柱間に架け渡されたブレースと、上下方向に延在し、ブレースとの干渉部分に切欠き部（３１）が設けられた下地桟（１２）と、下地桟を補強する補強具（４）とを備える。補強具は、パネルフレームの縦フレーム部（２３ａ）に取り付けられる支持部材（４１）と、上下方向において切欠き部に隣接する一般部（３２）に係合する係合部材（４２）と、支持部材および係合部材に連結され、支持部材と係合部材との間隔を維持する連結部材（４３）とを含む。【選択図】図５