The objective of this study is to conduct a finite-element (FE) numerical assess the effect size on shear resistance reinforced concrete (RC) beams strengthened in with externally bonded carbon fibre-reinforced polymer (EB-CFRP). Although few experimental studies have been done, there still lack FE that consider effect. Experimental tests are time-consuming and costly cannot capture all complex...

This paper examines the impact of flexural strengthening on percentage damaged strands in internally unbonded tendons partially prestressed concrete beams (0, 14.28%, and 28.57%) recovering conditions using CFRP composite longitudinal laminates at soffit, end anchorage U-wrap sheets to restore original capacity mitigate delamination soffit Carbon Fiber Reinforced Polymer (CFRP) laminates. The c...

Reinforced concrete (RC) beams may require flexural strengthening due to the corrosion of reinforcing bars or changes in design load. The near surface mounted (NSM) and externally bonded (EB) techniques, using either glass carbon fibre-reinforced polymer (GFRP CFRP) composites, are used for deficient RC beams. However, strengthened with both techniques susceptible debonding failure FRP composit...

This paper studies the efficiency of applying an engineered cementitious composite (ECC) layer to tensile surface (RC) beams that were previously strengthened using externally bonded (EB) carbon fiber-reinforced polymer (CFRP) laminates. One control and ten RC produced tested utilizing a four-point loading regime. For beams, two kept only CFRP, additional ECC layers added rest beams. The CFRP w...

In this study, we compare the behavior of confined compression-tested concrete test pieces and short beams subjected to three-point flexural strength testing when they are reinforced with high-modulus, high-strength carbon fibers polymers (CFRP). The fabrics used have roughly same mechanical capacity but very different rigidities. As such, results make it possible obtain influence rigidity CFRP...

The study presents the performance of flexural strengthening concrete members exposed to partially unbonded prestressing with a particular emphasis on amount (0, 14.2, and 28.5%) cut strands-symmetrical asymmetrical damage. In addition examining influence strands remaining capacity post-tensioned effectiveness carbon fiber reinforced polymer laminates restoration, investigated results rectangul...

It is an effective way to improve the flexural behavior of reinforced concrete (RC) members by externally bonded carbon fiber reinforcement polymer (CFRP) laminates on the soffit of the members. However, there is little investigation on flexural performance of RC beam flexurally strengthened by side-bonded FRP laminates. To investigate the flexural behavior of RC beams side-bonded CFRP laminate...

This paper reports the effects of carbon fiber-reinforced polymer (CFRP) length on the failure process, pattern and crack propagation for a strengthened concrete beam with an initial notch. The experiments measuring load-bearing capacity for concrete beams with various CFRP lengths have been performed, wherein the crack opening displacements (COD) at the initial notch are also measured. The app...