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论文类型：期刊论文

发表时间：2016-11-15

发表刊物：ENGINEERING STRUCTURES

收录刊物：SCIE、EI、Scopus

卷号：127

页面范围：101-116

ISSN号：0141-0296

关键字：Steel fiber; Beam; Modified compression field theory; Stress transfer; Shear strength

摘要：This study proposes a theoretical approach based on modified compression field theory to predict the shear strength of steel fiber-reinforced concrete (SFRC) beams without stirrups. The tensile contribution of the steel fibers is considered in the tensile stress-strain constitutive equations, which take into account the distribution of the fibers. The proposed strength model is verified by comparing it with 139 shear failure tests previously conducted on SFRC and reinforced concrete beams without stirrups. The influences of concrete strength, fiber volume, shear span-to-depth ratio, and longitudinal steel ratio on predicted shear strength are also discussed. Comparisons between the predicted and experimental results show that the proposed model can estimate shear strength accurately. (C) 2016 Elsevier Ltd. All rights reserved.