Tests of deep concrete beams with internal fiber-reinforced polymer (FRP) reinforcement have shown that such members can exhibit lower shear strength than members with conventional steel reinforcement. To model this effect, the current paper proposes an approach based on a two-parameter kinematic theory (2PKT) for conventional deep beams. The 2PKT is built on a kinematic model with two degrees ...

Shear strength of concrete members without transverse reinforcement: A mechanical approach to consistently account for size and strain effects, Engineering structures, UK, 2015, pp. 360-372. Keywords: Concrete structures Shear strength Aggregate interlock Residual tensile strength of concrete Dowel action Arching action Critical Shear Crack Theory Size effect Strain effect a b s t r a c t Many ...

Due to lack of theory of elasticity, estimation of ultimate torsional strength of reinforcement concrete beams is a difficult task. Therefore, the finite element methods could be applied for determination of strength of concrete beams. Furthermore, for complicated, highly nonlinear and ambiguous status, artificial neural networks are appropriate tools for prediction of behavior of such states. ...

Expansion and cracking induced by the corrosion of reinforcement concrete is the major factor in the failure of concrete durability. Therefore, monitoring of concrete cracking is critical for evaluating the safety of concrete structures. In this paper, we introduce a novel monitoring method combining Brillouin optical time domain analysis (BOTDA) and fiber Bragg grating (FBG), based on mechanic...

externally bonded reinforcement on grooves (ebrog) is a new method that has been introduced to postpone or eliminate debonding of frp sheets from concrete surface in concrete beams strengthened for flexure and increase loading capacity. for strengthening reinforced conceret beams in strructure, use of different types of frp like: laminate, afrp, cfrp, and gfrp. by there is some differences betw...