冷軋型不鏽鋼材因其較傳統結構鋼具有強度高、自重輕及維護費用低等特性，因此常用於建築工程、車體工程或相關結構體等生活環境中。本研究即是以美國ASCE所訂定之冷軋型不鏽鋼壓力構件強度之設計公式以及簡化設計公式進行比較，以國內普遍使用之304型不鏽鋼材，遵照中國國家標準(CNS)進行材料機械性質試驗，並利用MATLAB數值計算軟體進行資料分析找出材料之彈性模數(E0)、降伏強度(Fy)以及係數n值；最後代入上述規範公式及簡化公式計算柱構件壓力強度進行比較，了解二種設計公式之間的差異程度，以做為日後在相關設計規範研議之參考。
美國ASCE冷軋型不鏽鋼柱強度計算公式雖發展較早，但其計算過程中在找出正切模數(Et)與對應之挫曲應力(Fn)需透過反複計算至收斂值，對於計算而言是耗時且繁瑣的；而簡化設計公式則以柱構件之長細比(KL/r)與挫曲應力(Fn)之關係採用線性分析與近似特性為簡化概念，運用對數函數及Modified Ramberg-Osgood公式交錯帶入計算的方式進行強度計算，無須反複計算，大幅減低計算切線模數與最小挫曲應力之過程。
本研究之結果顯示，經由上述公式計算之比較結果發現兩者間之差異極小，準確率幾可達百分之百，因此也證明了簡化設計公式具有高度的可信度，簡化公式可替代美國ASCE之規範之冷軋型不鏽鋼壓力構件設計公式。

Cold-Formed stainless steel structural members are commonly used in the architectural and car-body engineering, as well as some typical structures due to their characteristic of high strength, light weight, and maintenance-free. This study presents the comparison of compression strength of cold-formed stainless steel, type 304, columns determined by using the ASCE Specification and the Simplified Design Formula. The material properties of type 304 stainless steel were conducted in accordance with CNS requirements. The software “MATLAB” was used to determine the mechanical properties of modules of elasticity(E0), yield strength(Fy), and curve coefficient(n).
In general, the tangent modulus theory is used for the design of cold-formed stainless steel columns. The modified Ramberg-Osgood equation given in the ASCE Standard can be used to determine the tangent modulus at specified level of stresses. However, it is often tedious and time-consuming to determine the column buckling stress because several iterations are usually needed in the calculation. The Simplified Design Formula was developed by using the numerical approximation to calculate the column flexural buckling strength without iteration process.
A comparison of computed compression strength determined by ASCE Specification and Simplified Design Formula was made in this study. These cold-formed stainless steel columns varied with different values of KL/r, n, E0 and Fy. It is noted that the column strengths determined by using the Simplified Design Formula have good agreement with those calculated from ASCE Specification. The difference of computed values from the ASCE Specification and Simplified Design Formula is very minimum. The Simplified Design Formula are shown to be valid to determine the flexural buckling stress of cold-formed stainless steel columns.

摘 要 I
Abstract II
誌 謝 III
目 錄 IV
表目錄 VI
圖目錄 VII
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究內容 2
1.3 研究目的 2
1.4 研究方法與流程 3
1.4.1. 研究方法 3
1.4.2. 研究流程 4
第二章 文獻回顧 6
2.1 相關研究回顧 6
2.2 設計規範 9
2.2.1 美國ASCE不鏽鋼柱壓力強度設計公式 9
2.2.2 簡化美國ASCE設計公式 11
2.3 相關基礎公式與實驗標準 18
2.3.1 材料屬性計算公式 18
2.3.2 試體抗拉試驗標準 20
2.3.3 MATLAB計算模式分析 26
第三章 冷軋型不鏽鋼試體材料試驗 29
3.1 前置作業 29
3.1.1 試體編號 29
3.1.2 試體規格 29
3.2 實驗器材與試體 31
3.3 實驗流程 32
第四章 冷軋型不鏽鋼柱強度計算比較 44
4.1 壓力構件參數假設 44
4.2 美國ASCE不鏽鋼壓力構件強度公式計算 47
4.3 簡化設計公式不鏽鋼壓力構件強度計算 50
4.4 結果比較 52
4.4.1差異程度比較 54
4.4.2相似程度比較 57
第五章 結論 60
參考文獻 62
附錄A 冷軋型不鏽鋼壓力構件強度計算範例 64
附錄B 材料屬性MATLAB分析程式語碼 70
附錄C 符號彙編 72

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