- 摘 要
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李成鎬 （延邊大學土木工程系 延吉 133002）金承勛 徐洙演 李利衡 （漢陽大學校 漢城 133791）
[提要] 為了研究倒T形型鋼-混凝土組合結構（地下組合墻體系統，即CBS）的抗彎受力性能，以剪切連接度、U形補助連接鋼筋、栓釘長度、受拉鋼筋及墻體厚度作為主參變量，進行了11根兩跨型鋼-混凝土組合梁的試驗研究。研究結果發(fā)現U形補助連接鋼筋及栓釘的附加長度明顯地改善了結構的延性，墻體厚度及受拉鋼筋的增大提高了結構的剛度和強度。并且驗證了倒T形型鋼-混凝土組合結構的跨中極限抗彎承載力計算可以直接利用一般型鋼-混凝土組合梁的抵抗負彎矩極限承載力的計算公式。
[關鍵詞] 鋼-混凝土組合結構 連接度 水平剪切連接件 受彎性能 試驗 分析The flexural capacity of inverted T-shaped composite basement wall which consists of H-shaped steel beam and RC wall is evaluated. Stud or U-shaped bar connectors are used to combine those落千丈members. Ten specimens with parameters such as the composite ratio, detail of connection, length of bolts and stiffness of wall are designed and tested. In addition, a pure RC wall specimen is designed for comparison. Test specimens showed high initial stiffness when the magnitude of shear stud in the connection is increased. However, the ultimate strength was not changed. It was shown that U-shaped bar and longer shear stud in the connection improved the deformation capacity of specimens. Also, the ultimate strength of composite basement wall combined H-shaped steel beam and RC wall by stud or U-shaped bar connector turned out 2.8 times higher than that of pure RC wall specimen.
Keywords: inverted T-shaped composite basement wall; degree; shear connection; shear stud; ductility
