本研究旨在探討單索面斜張橋在施拉預力時對錨碇區內部及錨碇區附近之主梁造成應變之變化，首先建立錨碇區塊與PC主梁銜接部分之FEM分析模型，並根據高屏溪斜張橋於施拉鋼纜預力時進行現地試驗所量測之應變資料，與FEM分析之結果相比對，印證FEM分析模型之可用性，藉此進一步對節塊內部之應力場加以分析，以供後續STM(strut and tie model)分析之依據。
　　主要研究成果如下：（1）節塊施拉預力時，發生較大之應變值之處除內部外，也在與其相鄰之主梁交界面；（2）為有效分析斜張鋼纜在施加預力時對錨碇區塊的影響，應將中央腹版、橫隔梁、頂版、底版及套筒開孔放在同一個FEM模型進行分析；（3）錨碇區塊、中央腹版及橫隔梁可有效降低主梁之應變，為主梁重要之承力機構。（4）當錨碇區承受預力時，其力流路徑以承壓鈑為中心，沿套筒方向藉由四周之結構物散入邊界，大部分之壓應力藉由中央腹版散佈至邊界及頂版與底版，頂版與底版之壓應力集中至橫隔梁，藉由外腹版分散至兩端之邊界。

1. AASHTO, "Standard Specification for Highway Bridges," Sixteenth Edition, American Association of State Highway and Transportation Officials, Washington, D.C., 1996, pp. 210-217.
2. Guyon, Y., "Prestressed Concrete," John Wiley and Sons, Inc., New York, 1960, pp. 127-174.
3. Fenwick, R. C., and Lee, S. C., "Anchorage zones in Prestressed concrete members," Magazine of Concrete Research, V. 38, No. 135, June 1986, pp. 77-89.
4. Sanders, D. H., and Breen, J. E., "Post-Tensioned Anchorage Zones-A Survey and Solution," Concrete International, V. 17, No. 8, Aug. 1995, pp. 65-70.
5. Adebar, P., and Zhou, L., "Design of Deep Pile Caps by Strut-and-Tie Models," ACI Structural Journal, V. 93, No. 4, July-Aug. 1996, pp. 437-448.
6. Schafer, K., "Strut-and Tie Models for the Design of Structure Concrete," Department of Civil Engineering National Cheng Kung University, Taiwan, 1996, pp. 12-30.
7. Wollmann, G. P.; Breen, J. E.; and Kreger, M. E., "Anchorage of External Tendons in End Diaphragms," Journal of Bridge Engineering, American Society of Civil Engineers, V. 5, No. 3, Aug. 2000, pp. 208-215.
8. 賴泓賓，「斜張橋鋼纜錨碇區受力行為之研究」，碩士論文，國立成功大學土木工程研究所，台南（1999）。
9. LUSAS Finite Element System, "LUSAS Element Library," Finite Element Analysis Ltd., United Kingdom, 1999,364 pp.