{"gross_floor_m2":109.710752,"stories":2,"required_x_cm_per_m2":29.0,"actual_x_cm":4798.45,"required_x_cm":1708.995404,"required_y_cm_per_m2":29.0,"actual_y_cm":5710.95,"required_y_cm":1708.995404,"balance_x":0.6259937629024466,"balance_y":0.5263507774125642,"pass":true,"messages":["壁量計算 OK (X: 4798/1709cm, Y: 5711/1709cm)","N値推定: 端部柱最大 14.7 kN → 推奨金物: ホールダウン金物 HD-B15","計算仮定: 軽い屋根+2階建て係数29 cm/m² (令第46条 表3)、壁倍率は構造用合板2.5/筋交2.0/IFCWALLSTANDARDCASE1.5/汎用1.0 の簡易判定。N値は端部柱の保守側推定。層間変形角は弾性域で 1/(200×剛性比) で近似。実際の構造設計では各柱位置で個別計算 + 構造一級建築士の検証必須。","4号特例廃止 (2025-04-01) 区分: 新2号建築物 (壁量+N値+柱小径+横架材スパン) — 延べ床109.7㎡ / 2階建て"],"n_value_max_kn":14.732719,"joint_recommendation":"ホールダウン金物 HD-B15","story_drift_ratio":0.0017807785889193384,"story_drift_pass":true,"asd":null}