計畫第一年的研究，先研究預力梁中採無預力或部分預力鋼絞線作為高強度縱向鋼筋對梁結構行為的影響，後續年度接著研究採用SD 690鋼筋為縱向鋼筋以及採SD 790鋼筋為橫向鋼筋對梁結構行為的影響。本年度預力梁試體的變數包括縱向鋼筋比、預力程度(無預力或部分預力)、縱向鋼筋型式(全部採鋼絞線或部分鋼絞線部分竹節鋼筋)，對照組試體為一般鋼筋混凝土梁，總計9支梁試體，試體跨度均為8 m，斷面高度70 cm，寬度40 cm，試體試驗的重點在於觀察梁於使用載重下的裂縫寬度，以及撓曲極限狀態時之強度。目前已完成試體設計以及試體之製造模具，預計可於七月完成試體製作，並於九月完成試體測試。

In the first year of this three-year research, the effect of using non-prestressed or partially prestressed steel strands as longitudinal reinforcement on the structural behavior of concrete beams was studied by testing large-scale beam specimens. In the following two years, the effects of using SD 690 steel as longitudinal reinforcement and SD 790 steel as transverse reinforcement will be studied. The test variables of the beam specimens in this year were the longitudinal reinforcement ratio, prestress level (non-prestressed or partially prestressed), and types of longitudinal reinforcement (all steel strands or partial strands and partial deformed bars). The control beam specimens were conventional reinforced concrete beams. There were in total nine specimens. For all the specimens, the span was 8 m and the cross section was 70 cm in height and 40 cm in width. The main objective of the testing was to observe the crack width under service loads and the strength at the ultimate condition. At the time of this writing, specimen design has been completed and steel formwork for specimen manufacturing have been made. It is estimated that the specimen fabrication can be completed by the end of July and testing of the specimens can be finished by the end of September.

[1] 張艮瑋，歐昱辰，「預力高性能混凝土梁撓曲與剪力行為」，碩士論文，國立臺灣科技大學，2015。
[2] 中國國家標準，鋼筋混凝土用鋼筋，CNS總號560，經濟部中央標準局，(2018)。
[3] 中國國家標準，預力混凝土用鋼線及鋼絞線，CNS總號3332，經濟部中央標準局，(2016)。
[4] 陳崇慶，邱建國，「高強度鋼筋混凝土梁之剪力裂縫行為研究」，碩士論文，國立臺灣科技大學營建工程研究所，2013。
[5] 陳少謙，邱建國，「鋼強度鋼筋混凝土梁之裂縫控制觀察」，碩士論文，國立臺灣科技大學營建工程研究所，2015。
[6] 蔡東均，歐昱辰，「高強度鋼筋混凝土柱軸力與彎矩強度互制關係電腦程式NewRC-PM 之開發與研究應用」， 碩士論文， 國立臺灣科技大學營建工程研究所，2017。
[7] C.B.Chadewll and R. A. Imbsen, "XTRACT: A Tool for Axial Force-Ultimate Curvature Interactions", ASCE, Structure, pp1-9.
[8] 「混凝土結構設計規範」, 中華民國內政部營建署, 民106修。
[9] Mander J. B., Priestly M. J. N.,and Park R. ,1988. "Theoretical stress strain model for confined concrete, Journal of Structural Engineering", ASCE, 114(8), 1804-1826.
[10] California Department of Transportation(Caltrans), "Seismic Design Criteria Version 1.6", Sacramento, California, 2010.
[11] Gergly, P. and Lutz, L. A.,"Maximum Crack Width in Reinforced Concrete Flexural Members", ACI Special Publication SP-20, American Concrete Institute, 1968, pp.87-117.
[12] ACI Committee 224, Causes,"Evaluation and Repair of Cracks in Concrete Structure".
[13] James M. Fisher, Lawrence A. Kloiber, "Base Plate and Anchor Rod Design", American Institue of Steel Construction, 2006.
[14] AASHTO LRFD Bridge Design Specifications. "American Association of State Highway and Transportation Officials", Washington, D.C. 2008.
[15] H. Nilson, "Design of Prestressed Concreted", John Wiley&, Sons, 1987.
[16] H. Nilson, "Design of Prestressed Concreted", John Wiley&, Sons, 涂照明, 彭詩懿 中譯, 1987.
[17] Paulay, Thomas, and MJ Nigel Priestley. "Seismic design of reinforced concrete and masonry buildings." (1992): 135-146.