{"gross_floor_m2":130.675801,"stories":2,"required_x_cm_per_m2":29.0,"actual_x_cm":6213.9,"required_x_cm":2595.259909,"required_y_cm_per_m2":29.0,"actual_y_cm":6213.9,"required_y_cm":2595.259909,"balance_x":0.5801159666242398,"balance_y":0.5801159666242398,"pass":true,"messages":["壁量計算 OK (X: 6214/2595cm, Y: 6214/2595cm)","N値推定: 端部柱最大 22.4 kN → 推奨金物: ホールダウン金物 HD-B25","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130.7㎡ / 2階建て"],"n_value_max_kn":22.37293025,"joint_recommendation":"ホールダウン金物 HD-B25","story_drift_ratio":0.0020882697734112233,"story_drift_pass":true,"asd":null}