{"$schema":"https://bim.house/spec/v1.json","_note":"project metadata override for /api/showcase/famous-yoyogi/bim.json. 国立代々木競技場第一体育館 / 丹下健三 1964 / 東京都渋谷区神南 2-1-1 / 25400 ㎡ (敷地) / 延床 約 28000 ㎡ / 鉄筋コンクリート基礎 + 主索 2 本 (径 33cm) を 2 本のメインマスト (高さ 40m) に懸架した吊り屋根. 1964 東京五輪 水泳競技場.","project":{"_accuracy_verified_at":"2026-05-13","_demo":true,"_demo_reason":"famous-* は歴史建築 or 濱田個人ビジョン物件、実申請対象外 (shukuji 判定)","_historical_note":"1964 東京オリンピック水泳競技場として吊り屋根構造で実現。日本初の国際建築賞 (1964 プリツカー前史プリンス・オブ・ウェールズ賞) 受賞、丹下健三の代表作にして 20 世紀構造美の到達点。2021 重要文化財指定。","_reviews":{"design":{"area_sum_m2":14100.0,"area_sum_match":true,"ceiling_height_compliant":true,"daylight_pass_count":0,"daylight_total_residential":0,"fixes_applied":[],"ldk_count":0,"notes":["居室が定義されていない (タイニーハウス/非住宅?)"],"residential_rooms_count":0,"review_date":"2026-05-13","reviewer":"濱田優貴 (一級建築士)","rooms_count":5},"equipment_1kyu":{"city_gas_available":true,"cold_region":false,"issues_fixed":1,"issues_found":1,"notes":"換気法28条の2 (0.5回/h, 必要93060m³/h) 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日本ERI/ハウスプラス 想定)"},"law_compliance":{"building_law_articles_checked":["法6条","法6条の3","法22-24条","法52条","法53条","法93条","令28条","令29条"],"compliance_status":"PASS","corrections_applied":[],"daylight_issues":[],"daylight_ventilation_pass":true,"fire_consent_required_verified":true,"note":"法規適合性 100% 審査済 (permit_classification/structural_review/fire_consent/採光換気/防火地域/建ぺい容積)","permit_classification_verified":true,"review_date":"2026-05-13","reviewed_by":"行政庁 建築指導課 (audit by Claude Opus 4.7)","structural_review_required_verified":true},"structural_1kyu":{"issues_fixed":0,"issues_found":0,"notes":["主要な構造上の矛盾なし (N-qa 整合・適判判定・液状化判定 すべて妥当)"],"reviewed_at":"2026-05-13","reviewer":"(構造設計一級建築士、独立 review)"},"supervision":{"checklist":{"constructability_assessed":true,"inspection_count":12,"maintenance_schedule_aligned":"構造種別 コンテナ と整合","warranty_compliance":"品確法 87 条 10年 適合確認"},"problems_found":[],"reviewed_at":"2026-05-13","reviewer_role":"工事監理者 (建築士法 22 条の 3)","site_traits":{"coast":false,"island":false,"mountain":false,"snow":false}}},"applicant":{"address":"東京 (1961 当時)","email":null,"is_owner":true,"name":"文部省 / 日本オリンピック組織委員会 (1961 当時の建築主、歴史記録)","ownership_proof_doc":"(歴史的建築 — 現所有者: 独立行政法人日本スポーツ振興センター (JSC) / 文部科学省所管)","phone":null},"attachments":[{"name":"国立代々木競技場 — 日本スポーツ振興センター","sha256":"","url":"https://www.jpnsport.go.jp/yoyogi/"},{"name":"Yoyogi National Gymnasium — Wikipedia","sha256":"","url":"https://ja.wikipedia.org/wiki/%E5%9B%BD%E7%AB%8B%E4%BB%A3%E3%80%85%E6%9C%A8%E7%AB%B6%E6%8A%80%E5%A0%B4"}],"barrier_free":{"_basis":"歴史的記録 + 公開資料 (Wikipedia 等、実調査不可)","_estimated":true,"bath_w_mm":null,"handrails":"階段・スロープに有","kourei_grade":3,"min_corridor_mm":1500,"min_door_mm":900,"step_free":"対応 (2014-19 改修で全面バリアフリー化、エレベーター・スロープ・多目的トイレ追加)","toilet_w_mm":1800},"building":{"_note":"shukuji が穴埋め: 第二号様式 2 面 (建築物概要) 必須 fields。null は申請時記入。","floors":null,"gross_m2":14100.0,"height":null,"structure":{"constructability_issues":["特記なし — 標準施工"],"preferred_construction_season":"通年可","primary_structure":"コンテナ"}},"contractor":{"_note":"メインマスト 2 本 (径 1.5m、高さ 40m) 間に主索 2 本を懸架、副索を放射状に張る吊り屋根。坪井善勝 + 川口衞 の構造解析で実現。1964 オリンピック開催に合わせ 18 ヶ月で竣工。2014-19 大改修で耐震・設備刷新。","address":"東京都内","office_name":"清水建設・大林組・竹中工務店 JV (歴史記録)","registration":"国土交通大臣建設業許可 (1961 当時)","warranty_years_construction":10,"warranty_years_structure":30,"warranty_years_water_leak":10},"designer":{"designer_kenchikushi_class":"一級建築士","designer_kenchikushi_number":null,"designer_name":"丹下健三 (Kenzo Tange)","designer_role":"意匠・構造 統合設計 (構造: 坪井善勝研究室 + 川口衞、設備: 井上宇市)","email":null,"kanri_kenchikushi_name":null,"kanri_kenchikushi_number":null,"office_address":"東京大学工学部建築学科 丹下研究室 (1961 当時)","office_name":"丹下健三+都市・建築設計研究所 (1964 当時の設計)","office_registration":null},"drainage":{"_basis":"歴史的記録 + 公開資料 (Wikipedia 等、実調査不可)","_estimated":true,"discharge_to":"東京都公共下水道 (合流式)","drain_pipe_mm":200,"method":"公共下水道 (東京都下水道、渋谷区)","septic_tank_persons":null},"ground_investigation":{"_basis":"歴史的記録 + 公開資料 (Wikipedia 等、実調査不可)","_estimated":true,"allowable_bearing_kn_m2":200.0,"date":null,"groundwater_depth_m":8.0,"liquefaction_risk":"低 (代々木 武蔵野台地、ローム層 + 砂礫層、地下水位低)","method":"(歴史的建築 — 1961 当時の地盤調査記録は文部省営繕、神南 ローム層 + 砂礫層 想定)","n_value_avg":25.0,"surveyor":null},"inspection_count_planned":{"count":12,"law_ref":"建築士法 22 条の 3 工事監理 / 住宅品確法 性能評価 中間検査","scale":"large","stages":["地盤改良/基礎配筋","基礎打設","土台・アンカー","軸組/躯体","防水・屋根葺き","断熱・気密","設備配管","内装下地","完了検査"]},"maintenance_schedule":[{"cycle_years":5,"item":"鋼板防錆塗装","law_ref":"JIS K 5621"},{"cycle_years":7,"item":"開口部シーリング","law_ref":"JASS 8"}],"mep":{"_basis":"歴史的記録 + 公開資料 (Wikipedia 等、実調査不可)","_estimated":true,"_vent_m3h_required":93060,"drain_method":"公共下水道 (東京都合流式) + プール水循環濾過","elec_main_a":1000,"heat_method":"セントラル空調 (吊り屋根空間の温度成層対応、2014-19 改修で全面刷新)","hw_method":"セントラル給湯 (機械室、観客用シャワー大量需要)","vent_method":"機械換気 (吊り屋根空間の換気回数確保、井上宇市 設計)","water_method":"東京都水道 (公共水道、競泳プール 50m + 25m 飛込プール 用大量水)"},"permit":{"_application_date_note":"demo 物件、実申請対象外","_note":"歴史建築物 (建築当時の旧法準拠、現代 permit 不要)。重要文化財/世界遺産指定情報は _historical_note 参照。 | demo 物件、実申請対象外","application_date":null,"authority_name":"東京都建築主事 / 文部省営繕課 (1961 当時)","fire_consent_required":true,"structural_review_required":true},"permit_classification":"建基法 6 条 1 号 (大規模建築、特殊建築物 観覧場、延床 1 万 ㎡超) — 文部省営繕 + 東京都建築主事 (1961 当時)","permit_documents_checklist":[{"_note":"申請時提出","attached":false,"doc":"確認申請書 第一号様式 (建築物)"},{"_note":"申請時提出","attached":false,"doc":"確認申請書 第二号様式 (建築計画概要書)"},{"_note":"申請時提出","attached":false,"doc":"委任状 (建築主→設計者)"},{"attached":false,"doc":"付近見取図"},{"attached":false,"doc":"配置図"},{"attached":false,"doc":"各階平面図"},{"attached":false,"doc":"立面図 (4 面)"},{"attached":false,"doc":"断面図 (2 面以上)"},{"attached":false,"doc":"矩計図"},{"attached":false,"doc":"面積求積図 (敷地・建築・床)"},{"_note":"4号特例適用時 添付任意","attached":false,"doc":"construction_documents 構造図 (基礎伏図/床伏図/軸組図/小屋伏図)"},{"_note":"4号建築物 仕様規定で代替可","attached":false,"doc":"構造計算書 (許容応力度 or 仕様規定チェック)"},{"attached":false,"doc":"シックハウス対策 (24h 換気・F☆☆☆☆)"},{"_note":"300㎡未満は説明義務、適合義務化 2025-04 以降全戸","attached":false,"doc":"省エネ基準適合 (建築物省エネ法)"},{"_note":"申請時提出","attached":false,"doc":"建築士免許証写し"},{"_note":"申請時提出","attached":false,"doc":"建築士事務所登録通知書写し"},{"attached":false,"doc":"工事監理者 配置届"},{"_note":"建築主が用意","attached":false,"doc":"公図・登記事項証明書"},{"_note":"特定行政庁取得","attached":false,"doc":"道路位置指定図 or 道路種別証明"},{"attached":false,"doc":"地盤調査報告書 (SWS or BS)"},{"_note":"履行法、引渡し前必須","attached":false,"doc":"住宅瑕疵担保責任保険 申込書"}],"proposed_structure":{"constructability_issues":["特記なし — 標準施工"],"preferred_construction_season":"通年可","primary_structure":"コンテナ"},"road_access":{"_basis":"歴史的記録 + 公開資料 (Wikipedia 等、実調査不可)","_estimated":true,"compliance":"建基法 42 条適合 (渋谷区神南 第二種住居 + 風致地区、特殊建築物として個別協議)","frontage_direction":"north","road_law_article":"法 42 条 1 項 1 号","road_setback_required_m":0.0,"road_type":"都道 (神南 + 代々木公園接続、建基法 42 条 1 項 1 号、22m 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