Abstract The paper presents the research on reinforced concrete (RC) beams strengthened with carbon fibre polymer (CFRP) strips various configurations in terms of anchoring and tensioning. five full-scale RC total length 6.0 m were passive strips, without mechanical anchorages at their ends, as well tensioned by novel prestressing system three levels ranging from 30 to 50% CFRP tensile strength...

Seismic design criteria based on performance of structures have recently been adopted by practicing engineers in response to destructive earthquakes. A simple but efficient structural-analysis tool capable of predicting both the strength and ductility is needed to analyze reinforced concrete (RC) structures under such event. A three-dimensional lattice model is developed in this study to analyz...

This paper presents an experimental investigation of bond-strengthening hooks as a new method to increase bond strength along flexural reinforcing bars in reinforced concrete (RC) beams. The proposed method attempts to increase confining stiffness around the flexural bars by placing U-shaped hooks and to prevent premature bond splitting failure. Ten specimens with different numbers and sizes of...

This paper presents an experimental investigation and nonlinear finite element analysis (NLFEA), using the numerical tool ANSYS©, carried out on shear diagonal cracking effect behaviour of reinforced-concrete (RC) beams made normal strength concrete (NSC) high-strength (HSC), with without transverse reinforcement. Beams were tested four-point bending, by means digital image correlation (DIC). I...

To accurately evaluate the overall corrosion degree of reinforced concrete (RC) beams, on basis SMFL technology, random detection experiment six RC beams was carried out. The relationship between tangential component By and normal Bz magnetic induction intensity analyzed, a multidefect dipole model established. correlation average ratio C beam characteristic index KG emphatically explored. resu...

In this paper, an experimental and theoretical study on the shear behavior of rectangular reinforced concrete (RC) beams strengthened by CFRP grid with epoxy mortar was investigated. Based test parameters including reinforcement ratio grid, span-to-effective depth strength, six beam specimens were prepared carried out to reveal their strengthening mechanism performance improvement. addition, a ...

Abstract Three-dimensional (3D)-printed concrete is believed to have a significant impact in the construction industry future. Some research has been conducted experimentally and analytically investigate structural behavior of 3D-printed elements, such as beams. Previous study by authors attempted model reinforced (RC) beams failing flexure that were tested other researchers. The was done with ...

Beams with width greater than their depth and equal to the of slab (concealed wide beams) are widespread in Reinforced Concrete (RC) buildings Albania. A large number RC beams were hit by a strong Mw6.4 earthquake on 26 November 2019. The two most densely populated areas Albania caused damage these buildings. This paper aims provide an updated view seismic performance light new field data follo...