Scale effects in GFRP‐bar reinforced concrete beams
نویسندگان
چکیده
Glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) can be defined as a cementitious material in which the reinforcing secondary phase consists corrosion-resistant GFRP rebars. For this next-generation structural material, experimental flexural tests highlight how postcracking response is strongly affected by amount of area together with size-scale. In work, cohesive/overlapping crack model (COCM) adopted to describe transition between cracking and crushing failures occurring GFRP-RC beams increasing beam depth, reinforcement percentage, and/or compression strength. Within nonlinear fracture mechanics model, tensile ultimate behaviors matrix are modeled through two different process zones that advance independently one another. Moreover, able investigate local mechanical instabilities behavior beams: snap back snap-through, due bridging action, snap-back generated unstable growth zone. context, application COCM highlights ductility, represented plastic rotation capacity only when slip, decreases percentage depth increase. way, rational quantitative definitions hyperstrength brittle provided depending on depth.
منابع مشابه
Effects of Loading Rate on Reinforced Concrete Beams
The effects of loading rate on the reinforced concrete beams are experimentally studied in the present paper. Firstly, the effects of strain rate on the different grades of concrete are investigated using the electro-hydraulic servo-controlled testing system at the strain rate that might be experienced during earthquakes. Based on the test results, the dynamic increasing factors (DIF) of concre...
متن کاملReliability evaluation of reinforced concrete beams
The purpose of this paper is to evaluate the time-invariant reliability of reinforced concrete beams designed under the provisions of the ACI Building Code. A wide range of practical design situations is considered. The beams are subjected to bending, shear, and torsion. The interaction between shear and torsion is considered via an elliptical failure surface defined in the shear-torsion stress...
متن کاملHysteretic Behavior of Conventionally Reinforced Concrete Coupling Beams in Reinforced Concrete Coupled Shear Wall
This paper presents the experimental results of four full-scale coupling beams in which only horizontal reinforcements are placed, without diagonal reinforcements, with the aim to develop reinforcement details for coupling beams used in connecting side walls in a wall-slab structural system. Each coupling beam specimen was designed according to the deep-beam design procedure that does not use d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Structural Concrete
سال: 2023
ISSN: ['1464-4177', '1751-7648']
DOI: https://doi.org/10.1002/suco.202200676