高性能混凝土因具有高工作性、高水密性、高體積穩定性且重量較輕，近年多用於公路橋梁上，但為了釐清新型混凝土是否適用於預力梁上，且能否按規範公式設計，因此本研究共規劃20座預力梁試體，試驗變數為混凝土種類及抗壓強度、破壞模式、縱向鋼筋與橫向鋼筋間距。透過實驗結果可與混凝土材料性質相互比較，以完整解釋梁構件行為，並與公路橋梁規範相互比較，驗證規範之設計公式可運用於高性能混凝土。試驗結果重點歸納為，高性能混凝土預力損失皆相距不大，預力損失與混凝土粒料所占體積、粗粒料含量最具關係；高性能混凝土在相同混凝土強度與預力量下，其撓曲延展性皆大於普通混凝土；混凝土設計強度為420 kgf/cm^2之剪力試體的剪力破壞角度皆大於混凝土設計強度為700 kgf/cm^2之剪力破壞角度；公路橋梁規範之極限彎矩與剪力強度計算值皆適用於高性能混凝土。
本研究與同研究室Denny共同進行試驗，一起測試20座預力梁試體，並利用這些數據分析，兩人分析的方向不同。本研究深入方向為構件的結構行為、試驗規劃、試驗流程以及曲率及剪應變，並與台灣公路橋梁規範進行比較。

With characteristic of high workability, physical dense, volume stability and light weight High-performance concrete is wildly used in bridges in recent years, Meanwhile, in order to clarify the type of concrete could be applicable to prestressed beam, and designed in standard formula.A total of 20 specimens will be examined in this study. Parameters examined include the type of the concrete, the concrete compressive strength, failure mode, and spacing of the transverse and longitudinal reinforcements.
Experimental results are obtained to evaluate the behavior of prestressed beam with different kinds of materials. Code verification is discussed in this study to check its applicability to prestressed beam with these materials. The experimental results are summarized by focusing on the relationship between prestresses loss and volume ratio of aggregate,coarse aggregate amount.The ductility of High performance concrete is better than ordinary Portland cement concrete.The shear failure angle of 6000 psi concrete is bigger than 10000 psi concrete.The moment capacity and shear capacity is aslo applicable in Taiwan’s standard.
This study was conducted by two master students, so the data in this study is gonna be same as another student (Denny), However, this thesis focuses more on experimental set up, specimen design, fabrication, and the applicability of Taiwan Code for these new materials"

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