ANALYSIS ON THE MECHANICAL BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE MEMBERS UNDER PURE TORSION
Based on the skew-bending theory under elastic state and sand heap analogy under plastic state, an equation for computing the cracking torque of steel fiber reinforced ordinary concrete and high-strength concrete members under pure torsion has been established; the members having cracked under torsion were idealized as the spatial truss model of the thin-walled cylinder with the core concrete cross section in a solid beam neglected, steel fibers in thin-walled cylinder were considered equivalent to the longitudinal bars and stirrups in the reinforced concrete members when their volumes were equivalent, and a computing equation of ultimate torsion of steel fiber reinforced members under pure torsion was establish based on the space truss model theory. A comparison of the experimental data of 139 members from existing literature shows that the computing equation proposed by the paper is in good agreement with test values.
steel fiber reinforced concrete members under pure torsion cracking torque ultimate torque
Ke-Guan Zou Gen-Yu Zhang Shu-Ting Liang Xiao-Jun Zhu
College of Civil Engineering, Southeast University, Jiangsu 210096, P.R. China China Architecture Design & Research Institute, 19 Chegongzhuang St., Beijing 100044, P.R.China Architectural Design & Research Institute, Southeast University, Jiangsu 210096, P.R. China
国际会议
广州
英文
321-329
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）