- 作者: 陳文雄; 陳明源
- 作者服務機構: 中央大學土木工程學研究所; 建國工商專校土木工程科
- 中文摘要: 本研究以試驗方式探討高強度混凝土樑的抗扭力行為。主要變數為縱向鋼筋比 及橫向箍筋比 ,共製作15cmx30cmx230cm試體樑19支,其中包含純混凝土樑3支,僅含縱向鋼筋樑4支,其餘12支樑分別配置不等量之縱向筋與橫向筋。試驗結果顯示,本文中橫向箍筋間距12cm ( =0.01)者,其箍筋間距離大於ACI規範建議值,但在樑開裂後,仍能維持樑之扭矩強度。從本文試驗結果( (方程式無法摘錄) )得到一迴歸式,以估計高強度混凝土樑之極限抗扭強度。
- 英文摘要: This paper describes tests on the torsional behavior of high strength concrete beams. The majorvariables considered are the longitudinal steel ratio, , and the transverse steel ratio, All 19 beams,including 3 beams with no reinforcement, 4 beams with longitudinal steel only, and 12 beams with differentlongitudinal and transverse steel, were cast. The results revealed that the torsional strength of beamswith stirrups at 12 cm spacing ( =0.01) could be maintained without a drastic drop in torsional strengthalthough the spacing of stirrups was larger than the value suggested by ACI code. A regression equationwas derived, based on this study( (方程式無法摘錄) ), for ultimate torque of reinforced high strengthconcrete beams under pure torsion.
- 中文關鍵字: torsion; high strength concrete
- 英文關鍵字: --