頁籤選單縮合
題 名 | 火災後木質結構用材之強度檢測=The Strength Testing of Wooden Construction after Fire Accident |
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作 者 | 陳載永; 陳合進; | 書刊名 | 國立中興大學實驗林研究彙刊 |
卷 期 | 19:2 1997.09[民86.09] |
頁 次 | 頁89-99 |
分類號 | 436.18 |
關鍵詞 | 火災; 非破壞性試驗; 破壞性試驗; 結構用材; Fire accident; Nondestructive testing; Destructive testing; Construction material; |
語 文 | 中文(Chinese) |
中文摘要 | 由火災後現場取得之結構用材,材料經鑑定有杉木、紅檜、樟木和台灣杉等四種材 料。以非破壞及破壞性檢測法測定材料之物理學及機械性質,得知材料經火災燃燒後,乃 能保留 47~65% 的靜曲破壞強度,且材料之縱向壓縮強度並沒有明顯降低。紅檜之比重會隨 著炭化率的增加而減小。4 種樹種的非破壞性檢測之動彈性係數與破壞性試驗的靜曲彈性係 數之直線迴歸的判定係數 r �握妣�,除樟木外均在 0.69 以上。 |
英文摘要 | The wood species of construction materials which were obtained after the fire accident including China fir (Cunninghamia lanceolata Hook), Taiwan red cypress(Chamaecyparis. formosana), Camphor tree (Cinnamonum camphora)and Taiwan (Taiwan cryptomerioides). The mechanical properties of these materials were tested by nondestructive testing (NDT)and then by destructive testing methods. It was found that after these materials had been burned at high temperature they sill retained 47~65% of staic bending strength, and the longitudinal compress strength was not reduced obviously. The specific gravity of Taiwan red cypress would be reduced as the charcoal rate increased. The linear regression(r ��)of MOEd and MOE of the materials were above 0.69except camphor tree. |
本系統中英文摘要資訊取自各篇刊載內容。