Shear strength of high-strength concrete beams: Modeling and design recommendations

被引:19
作者
Campione, G. [1 ]
Monaco, A. [1 ]
Minafo, G. [2 ]
机构
[1] Univ Palermo, DICAM, I-90128 Palermo, Italy
[2] Univ Enna Kore, Fac Ingn & Architettura, I-94100 Enna, Italy
关键词
Shear-moment interaction; High-strength concrete; Shear resistance; Flexural resistance; Analytical modeling; REINFORCEMENT; FIBERS;
D O I
10.1016/j.engstruct.2014.02.029
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In the present paper, the flexural and the shear resistance of high strength reinforced concrete (HSC) beams with longitudinal bars, in the presence of transverse stirrups is analyzed both theoretically and experimentally. The experimental researches here presented are parts of previous researches carried out by the author. Researches refer to HSC beams with high percentages of steel bars failing in shear and in flexure. From the analytical point of view, a model based on the evaluation of the resistance contribution due to beam and arch actions including bond splitting and concrete crushing failure modes is developed and presented. The model was verified against available experimental results and those recently obtained by the author. Some of the more recent analytical expressions able to predict the shear and the flexural resistance of concrete beams were mentioned and design considerations are made referring to a ductile design of HSC beams. Finally, design recommendations were derived with the proposed model and compared with expressions given in most common codes. (c) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:116 / 122
页数:7
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