目前本研究獲得以下結論：
一、 由蒐集的文獻顯示，從Cardington 火害試驗發現高溫中整體結構的混凝土鋼承 板具有非常明顯的薄膜效應，樓板在防止鋼結構的倒塌，扮演重要角色。由於 英國或歐洲之鋼構造建築的設計有別於我國，其鋼構件的連接方法與細部設計 亦與我國之鋼構設計相異，有關混凝土鋼承板在高溫中行為，實有必要做進一 步研究。
二、 數值模擬分析發現，加熱結束時，鋼承板表面(b1)為 817℃、肋底之下層主鋼筋 表面(b2)為 446℃、肋高之下層溫度鋼筋底表面(t2)為 281℃、鋼承板肋高之混凝 土(b3)為 142℃、肋底之下層溫度鋼筋底表面(b4)為 75℃及混凝土表面(t4)為 112
℃。依Eurocode 2 之建議，肋底之下層主鋼筋(b2)之降伏強度將衰減至常溫降伏 強度的64%。
三、 本研究係與本(105)年度委託研究案「實尺寸鋼構屋之剪力連接複合鋼梁火害結 構行為研究」，共同進行實尺寸鋼構屋真實火災實驗，由於颱風與南部下雨較 多，以致實驗進度延宕，目前預計於10 月底，方能進行火害實驗。
第二節 建議
建議一
火害混凝土鋼承板修復研究：立即可行之建議 主辦機關：內政部建築研究所
協辦機關：
隨著國家經濟建設達成熟階段其新建工程的比率將隨之降低，而現有土木工程結構物 的維修工作將日益增加，為確保混凝土永續服務的品質進行合宜的維修補強是可行的；
受火害混凝土鋼承板，修復方式多為敲除混凝土鋼承板後，再重新補上新的混凝土鋼 承板，與周邊原有未受火害的混凝土鋼承板，兩者間界面形成結構上的弱點，高溫對 其研究較為缺乏，可納入後續研究探討。
建議二
高溫中混凝土鋼承板薄膜作用研究：中長期建議 主辦機關：內政部建築研究所
協辦機關：
從Cardington 火害試驗發現高溫中整體結構的混凝土鋼承板具有非常明顯的薄膜效應，
樓板在防止鋼結構的倒塌，扮演重要角色。由於英國或歐洲之鋼構造建築的設計有別 於我國，其鋼構件的連接方法與細部設計亦與我國之鋼構設計相異，有關混凝土鋼承 板在高溫中行為，實有必要做進一步研究。
附錄一 審查會議紀錄
Cardington 試驗比較。4. 本研究實尺寸鋼構屋之規劃設計原則，請
2. 在戶外做實驗，萬一突然下大雨時，可能
4. 圖 3.12 澆置混凝土時，踏踩綁紮鋼筋面易
議進行探討，尤其是結構反應與行為。
2. 期望混凝土鋼承板具有明顯的薄膜效 應，樓版中間上側就宜有配筋，這一點是 否可列於樓版防火時效的條文內。例如，
一小時配置多少鋼筋，二小時配置多少鋼 筋。
此發展無防火被覆小梁的相 關設計方法，本研究將初步探 討薄膜效應的影響，期能對實 務設計有所助益。
陳技師正平：
1. 由樓版小梁配置系統應為小梁懸索效 應，而非薄膜效應。
2. 鋼承板樓版有考慮合成與只當模板用，二 種之防火時效宜予區分。
1.由相關文獻指出火害樓版小梁 配置系統有薄膜效應。
2. 謝謝建議，本研究鋼承板樓版 只當模板使用。
附錄二 本研究試體設計資料[68]
本計畫所興建的上部結構設施，即實尺寸鋼構造實驗屋本體係以2 跨×2 跨、
9 根柱子、每跨 6m 的兩層樓鋼構屋所受之載重與外力進行結構設計，再以此結 構設計結果，取其第一層樓之梁、柱、版，興建一層樓的實尺寸鋼構實驗屋。
本研究團隊中的專業技師依照國內建築法規、鋼結構規範、耐震規範以及國 內常用之鋼構建築型式，所設計之一層樓鋼構實驗屋的立面圖與平面圖如圖A1 與圖A2 所示，此鋼構造實驗屋為 2 跨×2 跨的一層樓建築，樓層高度 4m，其平 面X 方向有 2 跨，每跨 6m，總長 12m，其平面 Y 方向有 2 跨，每跨 6m，總長 12 m。所有鋼柱下端底板將以高強度錨定螺栓固定於上半結構 RC 底座，鋼柱上 端將延伸至一樓頂版上方1.1m 處，以利後續增建與加載之用。此一層樓鋼構實 驗屋之梁、柱、版構件尺寸如表A1 所示。
圖 A1 上部結構設施所規畫一層樓鋼構造實驗屋之立面設計圖(參考書目[68])
圖 A2 上部結構設施所規畫一層樓鋼構造實驗屋之平面設計圖(參考書目[68]) 表 A1 壹層樓鋼構造實驗屋之構件尺寸
構件 編號 構件尺寸(mm) 材質
柱 SC1
SC2 RH-3003001015 CNS SN490B 或同等級鋼材
梁
SB1 RH-3903001016 CNS SN490B 或同等級鋼材 SB2 RH-400200813 CNS SN490B
或同等級鋼材 SG1 RH-294200812 CNS SN490B 或同等級鋼材
Sg1 RH-3001506.59 CNS SN490B 或 A572 或同等級鋼材 版 SS1 t = 150
備註 上半實驗屋係以2F 建物分析所得斷面，
本階段僅取地上一層樓梁柱結構。
（參考書目[68]）
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