PRESTRESSED CONCRETE BEAMS REINFORCED WITH BARS AND STEEL FIBERS IN COMBINED BENDING, SHEAR AND TORSION

被引：0
|
作者：
Qiu Jisheng [1 ]
Yao Qianfeng [1 ]
Huang Wei [1 ]
机构：
[1] Xian Univ Architecture & Technol, Xian, Peoples R China
来源：
PROCEEDINGS OF THE 6TH INTERNATIONAL SPECIALTY CONFERENCE ON FIBRE REINFORCED MATERIALS | 2010年
关键词：
prestress; steel fiber concrete; composite torsion; variable angle space truss model; ultimate torque; failure type;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Based on the mechanics capacity of prestressed concrete beams reinforced with bars and steel fibers in bending, shear and torsion, considered the influence of prestress and steel fibers on ultimate capacity, the formulas of ultimate torque of prestressed steel fibers reinforced concrete (PSFRC) beams are given using the variable angle space truss model in three failure types. Moreover the determination method of failure type and ultimate torque in practice are given. So that the formulas make the function of prestress and steel fibers as the equivalent longitude and transverse steel bars. The formulas have same theory and method with the ones of normal reinforced concrete beams, which can joint each other well and be used in practice engineering easily. So it can provide valuable reference for the use and modify of code of steel fiber reinforced concrete beams.
引用
收藏
页码：287 / 294
页数：8
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