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研究生:劉賜泉
研究生(外文):Syh-Chyuan Liou
論文名稱:冷軋型鋼邊加勁肢材受均佈壓力之行為
論文名稱(外文):The Behavior of Cold-Formed Steel Members with Edge-Stiffened Elements Subjected to Uniform Compression Stresses
指導教授:潘吉齡潘吉齡引用關係
指導教授(外文):Chi-Ling Pan
學位類別:碩士
校院名稱:朝陽科技大學
系所名稱:營建工程系碩士班
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2001
畢業學年度:89
語文別:中文
論文頁數:79
中文關鍵詞:短柱實驗局部挫屈邊加勁肢材邊緣加勁肢
外文關鍵詞:stub column testlocal bucklingedge-stiffened elementedge stiffener
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本文就冷軋型鋼邊加勁肢材受均佈壓力行為的研究結果提出報告,研究內容以實驗分析為主,總共進行20個短柱試體實驗,文中比較實驗結果與設計規範預測值的差異,評估設計規範的適用性,並探討邊緣加勁肢、冷作效應及挫屈係數對極限承載能力的影響。
研究結果顯示,平板局部挫屈模式破壞發生在邊緣加勁肢具有充份剛性時,而邊緣加勁肢剛性不足時,為局部翹曲挫屈模式破壞;在承載能力方面,邊緣加勁肢寬度對邊加勁肢材平寬的比值超出AISI規範限制的斷面,若將邊緣加勁肢及邊加勁肢材分別視為未加勁肢材及加勁肢材,以有效寬度方法計算其極限承載力,可得較好之預測值。

This study presents results of investigation focusing on the performance of cold-formed sections with edge-stiffened elements subjected to uniform compression stresses. The research was conducted based on the experimental analysis. A total of 20 stub column specimens were tested under direct compression. The AISI design criteria for the cold-formed sections with edge stiffener is evaluated through comparison with experimental data. In addition, the influence of length of edge stiffener, the effect of cold-work and the buckling coefficient of element on the ultimate load capacity are discussed.
The experimental results indicate that the failure mode of test specimens with adequate stiffener rigidity was local plate buckling. The distortional buckling mode was occurred for the specimens with inadequate stiffener rigidity. In the estimation of load capacity, for the sections whose edge stiffener’s width to the flat width of the edge-stiffened element ratio exceeds over the AISI specification limits, it is recommended that edge stiffener and edge-stiffened elements can be treated as unstiffened and stiffened element, respectively. Then the ultimate load can be calculated by using the effective width approach. The predicted values showed good agreement with the test results.

摘 要 I
ABSTRACT II
目 錄 III
表目錄 V
圖目錄 VI
第一章 緒 論 1
1.1 簡介 1
1.2 研究動機 3
1.3 研究內容 3
第二章 文獻回顧 9
第三章 理論分析與設計規範 16
3.1 加勁肢材 16
3.2 未加勁肢材 24
3.3 邊加勁肢材 25
3.4 冷作效應影響 28
第四章 實驗規劃 31
4.1 材料性質 31
4.2 試體設計 34
4.3 試體製作 37
4.4 實驗儀器設備 42
4.5 實驗方法 42
第五章 實驗結果與討論 46
5.1 試體破壞模式 46
5.2 極限載重分析 50
5.3 實驗結果比較 55
5.4 局部挫屈載重 68
第六章 結論與建議 75
參考文獻 77

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