本論文完成4組共14個混凝土墩柱試體，包含配置縱向及橫向鋼筋混凝土墩以及實心鋼柱配置剪力釘，部分試體將鋼柱埋入混凝土墩柱中，進行軸向載重試驗，研究鋼骨柱與RC柱軸力傳遞的行為。研究顯示：(1)橫向鋼筋可以提升混凝土墩柱的承壓強度及延展性；(2)承壓面以上的混凝土會提升混凝土墩柱的承壓強度；(3)剪力釘發揮到最大強度需要相當的位移量，當力量由剪力釘傳遞到承壓面時，部分混凝土強度會被剪力釘用掉；(4)本研究建議的修正疊加法，對混凝土承壓強度進行折減，可以相當精準的預估試體共同作用的強度。

Current research includes 4 series with total of 14 concrete pedestal specimens with various kinds of transverse reinforcement and shear studs configuration subjected to uniaxial compression load. Some of the specimens have steel column embedded into the concrete pedestal. The focus of this study is to investigate the axial load transfer from steel to reinforced concrete. The experimental results show that: (1) the use of transverse reinforcement in concrete pedestal increases the bearing strength and the ductility of the pedestal, (2) the presence of concrete above the bearing surface increases the bearing strength of the concrete pedestal, (3) shear stud need sufficient deformation to develop its maximum strength and part of the concrete strength is used up to resist part of the axial load transferred by shear studs, (4) the modified-superposition method proposed in this report, which use the reduction factor to reduce the bearing strength, can give reasonably accurate and conservative prediction to the combination of bearing strength and shear connection strength.

[1] AISC.,2010,”Specification for Structural Steel Building,” American Institute of Steel Construction,Inc.
[2] Roeder, C.W., Chmielowski, R., & Brown, C.B. (1999). Shear connector requirements for embedded steel sections. Journal of Structural Engineering, 125, 142-151.
[3] R. Ince , E. Arici, ”Size effect in bearing strength of concrete cube,” Construction and Building Materials 18 (2004) 603-609
[4] Pallares, L. & Hajjar, F. (2010). Headed steel stud anchors in composite structures, Part I: Shear. Journal of Constructional Steel Research, 66, 198-212.
[5] Pallarés, L. and Hajjar, J.F. (2010a), “Headed Steel Stud Anchors in Composite Structures: Part II. Tension and Interaction,” Journal of Constructional Steel Research, Vol. 66, No. 2, February, pp. 213–228.
[6] Gattesco, N. & Giuriani, E. (1996). Experimental Study on Stud Shear Connectors Subjected to Cyclic Loading. Journal of Constructional Steel Research, 38, 1-21.
[7] Lam, D. & El-Lobody, E. (2005). Behavior of headed stud shear connectors in composite beams. Journal of Structural Engineering, 131, 96-107.
[8] Nguyen, H.T. & Kim, S.E. (2009). Finite element modelling of push-out tests for large stud shear connectors. Journal of Constructional Steel Research, 65, 1909-1920.
[9] TISC中華民國鋼結構協會，「鋼結構銲接之符號及常用詞彙手冊」，2015年。
[10] 經濟部標準檢驗局，「中華民國國家標準，鋼筋混凝土用鋼筋CNS560」，2006年。
[11] 經濟部標準檢驗局，「中華民國國家標準，混凝土圓柱試體抗壓強度檢驗方法CNS1238」，2005年。
[12] 陳正誠，「鋼結構構件行為學」，上課講義，2014年。
[13] 歐昱辰，「RC構件行為學」，上課講義，2014年。