Investigation of the forces carried across cracks in reinforced concrete beams in shear by interlock of aggregate
01 Nov 1970-
About: The article was published on 1970-11-01 and is currently open access. It has received 80 citations till now. The article focuses on the topics: Reinforced solid & T-beam.
Citations
More filters
TL;DR: In this paper, an experimental investigation was conducted to study the shear strength of full-scale beams constructed with 100% recycled concrete aggregate (RCA) as well as conventional concrete (CC).
163 citations
TL;DR: In this paper, the shear behavior of concrete beams reinforced with fiber-reinforced polymer (FRP) reinforcement was investigated and the results of these tests were compared to predictions according to the design recommendations proposed by the ACI and the Institution of Structural Engineers, U.K.
Abstract: This study investigates the shear behavior of concrete beams reinforced with fiber-reinforced polymer (FRP) reinforcement. Six beams were subjected to two successive phases of testing. Half of the beams were reinforced in flexure with conventional steel reinforcement, while the other half were reinforced with glass fiber bars. Different shear span to depth ratios, ranging from 1.1 to 3.3, were analyzed in order to study the variation in the shear behavior of beams characterized by different types of shear failure. No shear reinforcement was provided in the first phase of testing, while in the second phase, just enough glass and carbon shear reinforcement was provided to enable failure due to shear. The results of these tests are presented and compared to predictions according to the design recommendations proposed by the ACI and the Institution of Structural Engineers, U.K. The results of this study show that these approaches, which are based on modifications of equations derived for steel reinforcement, ...
121 citations
TL;DR: In this article, an analytical integration of the stresses developed at the critical shear crack and accounting for the member kinematics is performed, leading to a smooth transition between limit analysis and linear elastic fracture mechanics in agreement to the size effect law provided by Bažant et al.
119 citations
Cites background from "Investigation of the forces carried..."
...With respect to the crack opening (w), it can be obtained for the given kinematics by relating it to the rotation of the critical shear crack (w) developed at its centre of rotation (Fig....
[...]
TL;DR: In this paper, the results of an experimental program consisting of thirteen beams are presented with reference to the measured crack kinematics and related to the various potential shear-transfer actions, with the aim of providing a useful material towards the development of rational approaches for shear design.
112 citations
TL;DR: In this article, the activation of various shear-transfer actions for one-way reinforced concrete (RC) members was investigated by using a set of detailed measurements on the cracking pattern and actual kinematics at failure recorded on a number of specimens with a very low amount of transverse reinforcement.
Abstract: Shear in one-way reinforced concrete (RC) members is transferred in cracked concrete members by a number of actions such as aggregate interlock, residual tensile stresses, dowelling action, inclination of compression chord and transverse reinforcement (if available). The amount of shear transferred by each action is significantly influenced by the cracking pattern (shape of shear cracks) and by the kinematics at failure (opening and sliding of the cracks). In this paper, the activation of the various shear-transfer actions is investigated for one-way RC members. This is done by using a set of detailed measurements on the cracking pattern and actual kinematics at failure recorded on a number of specimens (beams) with a very low amount of transverse reinforcement. The amount of shear transferred by each action is estimated on the basis of available physical models and compared for the various specimens. The results show rather good predictions in terms of strength by following this approach. Consistent explanations of the shear transferred by each action are provided.
95 citations
Cites background from "Investigation of the forces carried..."
...…in this field have been performed on the aggregate interlock action (Dei Poli et al., 1987; Paulay and Loeber, 1974; Sagaseta and Vollum, 2011; Taylor, 1970; Ulaga, 2003; Walraven, 1980; Zararis, 1997), the dowelling action (Chana, 1987; Dei Poli et al., 1992, 1993; Jelic et al., 1999;…...
[...]