{ "schema_version": "38t-review-web-v1", "approved": true, "updated_at": "2026-10-21", "vehicle": { "gross_t": 38, "axles": 4, "daily": 50, "annual_days": 300, "years": 20 }, "geometry": { "thickness_cm": 25, "length_m": 4, "width_m": 3, "road_width_m": 6 }, "materials": { "MR_kgf_cm2": 45, "fc_kgf_cm2": 350, "Ec_kgf_cm2": 300000, "nu": 0.15, "fc_status": "設計暫採，無試拌或強制350依據，不保證MR45。" }, "subgrade": { "k_kgf_cm3": 5, "qa_kgf_cm2": null, "status": "現地卵礫石需整平壓實且連續支承；k=5為假設，並非容許承載力qa。省略底層須確認現地材料、排水及支承品質；尚無實測k或qa，不宣稱地基驗收已通過。" }, "traffic": { "demand_esal": 5999350.02002849, "capacity_esal": 11827192.476136, "ratio": 1.97141230910874, "min_cm": 23, "min_scope": "23cm僅為20年交通及原經驗選桿試算下限；未對23cm另做本次完整四軸多板力學複核，採用板厚仍25cm。", "k2_ratio": 1.54080799 }, "decision": { "headline": "25cm已列計算有支持；剪力／沖切尚未完成", "conclusion": "四軸六板、板邊板角、離散傳力桿與逐積分點只受壓接觸交叉複核後，25cm維持。採單次參考底拉25.1、頂拉22.3kgf/cm²；相對MR45的開裂門檻比約1.79，另以AASHTO累積交通比1.971檢核20年使用。兩者不能互相取代；板剪力／沖切與鋼傳力桿抗力尚未完成，不能宣稱完整承載檢核通過。", "limits": [ "車輛軸距、輪距與輪印為明列假設，已取樣敏感度而非量測全車規格。", "MR45須由抗彎試驗確認；fc′350不能自動保證MR45。", "k=5kgf/cm³只代表模型支承勁度；現地承載、排水、壓實與局部脫空尚需施工前確認。", "溫差僅作敏感度，未完成指定設計溫差及所有載位環境包絡。", "既有案例與外國標準圖不等於本案安全認證；適用契約規範與尚缺原件另列。" ] }, "adopted": { "case_id": "adopted-rounded-envelope", "regime": "四軸六板及接縫敏感度、GP4只受壓接觸控制點；設計參考向上取整", "stress_bottom_kgf_cm2": 25.1, "stress_top_kgf_cm2": 22.3, "scope": "25cm、4×3m短板、3×2板、四軸分載前2/7後5/7。已查模型最大底拉25.03053、頂拉22.20412，採25.1/22.3；兩值為不同情境包絡。不是每次Excel輸入重跑有限元素，也不是全部未知軸距及溫度的全域最大值。" }, "cases": [ { "case_id": "old-mindlin-rear-only", "model": "原單板Mindlin Q4（修正前）", "regime": "後雙軸／四邊自由單板", "bottom_kgf_cm2": 21.4575919431, "top_kgf_cm2": 20.4373655195, "Pc_kgf": 1634.0994087, "qmax_kgf_cm2": null, "scope": "保留作修正前對照，不再代表四軸六板控制值。", "source": "mechanics/原plate_fe.py及既有38t結果" }, { "case_id": "claude-acm-contact", "model": "Claude獨立Kirchhoff ACM", "regime": "四軸／六板／離散桿／GP4只受壓接觸", "bottom_kgf_cm2": 25.0305280387, "top_kgf_cm2": 22.2041135869, "Pc_kgf": 1887.4067329754, "qmax_kgf_cm2": 0.892279001, "scope": "2.5cm控制點細化、自重、板底板頂各自控制情境；底拉值涵蓋窄縫勁度敏感度。完整HRT式窄縫桿力5cm搜尋1887.407kgf。", "source": "downloads/claude-review-38t.md" }, { "case_id": "adopted-rounded-envelope", "model": "Codex／Claude交叉核對後採用", "regime": "已查情境向上取整參考", "bottom_kgf_cm2": 25.1, "top_kgf_cm2": 22.3, "Pc_kgf": 1900, "qmax_kgf_cm2": 0.892279001, "scope": "σ採25.1/22.3；窄縫Pc1900、備用2.5cm伸縫Pc1540kgf。35–45t同幾何條件僅作W/38近似，超出或h/k等改變顯另算。", "source": "downloads/reviewed-results-38t.json" } ], "thermal": { "status": "sensitivity_only", "scope": "α=1e-5/°C，僅指定控制載位的溫差敏感度；非契約指定設計溫差，不宣稱完整環境疲勞包絡。", "cases": [ { "name": "日間+10°C", "condition": "板頂較暖、接縫有效", "stress_kgf_cm2": 31.32797, "scope": "底拉敏感度" }, { "name": "日間+15°C", "condition": "板頂較暖、接縫有效", "stress_kgf_cm2": 34.81662, "scope": "底拉敏感度" }, { "name": "日間+20°C", "condition": "板頂較暖、接縫有效", "stress_kgf_cm2": 38.41348, "scope": "底拉敏感度" }, { "name": "夜間−15°C", "condition": "接縫失效情境", "stress_kgf_cm2": 30.94134, "scope": "頂拉敏感度" } ] }, "dowel": { "diameter_mm": 32, "length_cm": 45, "spacing_cm": 30, "joint_gap_cm": 0.3, "Pc_kgf": 1900, "bearing_kgf_cm2": 291.64291902406285, "allowable_kgf_cm2": 319.68503937007875, "K0_kgf_cm3": 41520, "beta_per_cm": 0.2371574860915084, "joint_gap_max_cm": 0.3, "scope": "一般縮縫／窄施工縫，設計有效開口≤0.3cm。每3m車道首末桿距邊15cm。完整HRT自由段柔度後已查Pc1887.407，採1900kgf向上取整。", "source": "Claude dowel_envelope_fullkd_d5.0.json；FHWA-HRT-06-106式10–12、20–24，Wiki14678。", "steel_surface_type": "光面鋼筋" }, "expansion_dowel": { "diameter_mm": 32, "length_cm": 45, "spacing_cm": 25, "joint_gap_cm": 2.5, "Pc_kgf": 1540, "bearing_kgf_cm2": 295.9322496929485, "allowable_kgf_cm2": 319.68503937007875, "K0_kgf_cm3": 41520, "beta_per_cm": 0.2371574860915084, "filler_thickness_cm": 2, "scope": "條件備用：僅接既有固定結構等確需伸縫時採用，非沿路定距增設。每車道12支、首末距邊12.5cm；光面桿單端套帽及滑動。填縫板厚2cm、最大設計開口2.5cm；2cm實際開口模型Pc1523.830kgf，2.5cm開口Claude另核Pc1482.867／承壓284.953，仍由Pc1540設計採值涵蓋，採1540向上取整。原Ø32@30在2cm實際開口歷史情境完整式亦算術通過約2%，加密是留施工餘裕之建議，不是判定原方案違規。", "source": "Codex expansion_joint_check_full.json（2.5cm、GP4、自重），Claude同位獨立再核。；Claude exp_zsens_2.25_2.5.json（設計開口2.5cm另核）", "steel_surface_type": "光面鋼筋" }, "tie": { "bar": "D16", "length_cm": 80, "spacing_cm": 80, "first_from_transverse_joint_cm": 40, "depth_cm": 12.5, "scope": "中央縱縫單層拉結筋，μ2.5基底摩擦及RC完整fy直線錨定檢核。RC需求32.64cm≤有效37.95cm；FHWA容許應力法長度不同，未宣稱兩法同時無條件通過。", "steel_surface_type": "竹節鋼筋", "steel_grade": "SD420W" }, "cross_review": { "claude_task_id": "local_dd97a331-f9fb-4bc4-a19d-d35af5a99921", "rows": [ { "item": "四軸與板邊板角", "claude": "另寫Kirchhoff ACM12DOF、六板及四軸", "codex": "核對剛體／常曲率／虛功與獨立控制點；自由單板不保證最保守", "adopted": "單次參考由21.46改25.1kgf/cm²，板頂另列22.3" }, { "item": "桿力與接觸", "claude": "依回饋改離散桿及逐GP4只受壓接觸", "codex": "找出邊界節點積分漏半力、局部負反力及修正後平衡", "adopted": "窄縫Pc1900、伸縫Pc1540，替換原1634參考" }, { "item": "完整自由段柔度", "claude": "接受式20含轉角、剪力與自由段彎曲", "codex": "回讀Wiki原件式11/12/20/21，核對符號及2cm實際開口", "adopted": "撤回伸縫32@30必不過；條件備用採32×45@25" }, { "item": "地基假設", "claude": "區分k、q與qa，移除整元素平均接觸近似", "codex": "查核自重平衡、局部壓力及省略底層適用條件", "adopted": "現地壓實、排水及支承須確認，不以q<未知qa作通過" }, { "item": "Excel通用界線", "claude": "另行核對35/38/45t比例及桿實際位置", "codex": "固定三控制點縮放差最大0.03555%；修超出試算範圍方向bug", "adopted": "只在35–45t原幾何條件近似W/38；其餘單次力學顯另算" } ] }, "evidence_links": [ { "role": "coupled_image", "label": "四軸六板與接縫複核圖", "url": "https://blog.cycivil.com.tw/wp-content/uploads/engineering-tech/rigid-pavement-20261021-38t/images/single-load-review.png" }, { "role": "claude_report", "label": "Claude實際共同複核紀錄", "url": "https://blog.cycivil.com.tw/wp-content/uploads/engineering-tech/rigid-pavement-20261021-38t/downloads/claude-review-38t.md" }, { "role": "results", "label": "核定值與模型適用界線", "url": "https://blog.cycivil.com.tw/wp-content/uploads/engineering-tech/rigid-pavement-20261021-38t/downloads/reviewed-results-38t.json" } ], "design_rounding": { "bottom_from": 25.0305280387, "bottom_adopted": 25.1, "top_from": 22.2041135869, "top_adopted": 22.3, "ordinary_Pc_from": 1887.4067329754, "ordinary_Pc_adopted": 1900, "expansion_Pc_at2cm": 1523.8285501792, "expansion_Pc_at2_5cm": 1482.8670200557, "expansion_Pc_adopted": 1540, "note": "Pc採已查情境向上整數並以最大設計開口另算承壓，非公式顯示值湊成一致。" }, "actual_claude_report_sha256": "2ea459665738476c1c1aa299381b3f85fac2d07402f0d0a4d42d25f45cc43c57", "distributed_reinforcement": { "adopted": "none", "scope": "本案4×3m接縫型短板不配置分布鋼筋網。" }, "steel_annotation_revision": { "date": "2026-10-23", "scope": "型式標註同步；尺寸、間距、位置及既有計算結果不變。" }, "shear_review": { "status": "incomplete", "slab_one_way_and_punching": "尚未完成完整需求及抗力檢核", "steel_dowel": "已算剪應力需求，材質等級及抗力未定", "scope": "既有彎拉、交通、桿周承壓及錨定通過不代表完整承載檢核完成。" } }