Civil engineering beyond Llimits 

About: Civil engineering beyond Llimits is an academic journal published by ACA Publishing. The journal publishes majorly in the area(s): Engineering & Environmental science. It has an ISSN identifier of 2687-5756. Over the lifetime, 17 publications have been published receiving 2 citations. The journal is also known as: Journal of Civil Engineering Beyond Limits & CEBEL.

The Behavior of Hybrid Fiber RC Shear Walls Subjected to Monolithic Pure Torsion: An Analytical Study

Abstract: The reinforced concrete (RC) shear walls are widely used to serve as the primary lateral load-resisting member in the high-rise buildings. An experimental investigation and analysis of the mechanical behaviour of hybrid fiber reinforced self-compacting concrete (HFRSCC) shear walls under pure torsion moment is presented in this paper. The nine HFSCC shear walls with the same height and longitudinal reinforcement ratio analytically were tested under pure torsion moment and no axial load. The effect of hybrid fiber ratio and horizontal reinforcement amount and aspect ratio on the failure characteristics, torsional behaviour, energy dissipation capacity of squat shear walls was studied. Result indicate that both hybrid and horizontal reinforcement ratio are increased the maximum torsional moment capacity and twist angle and that the hybrid fiber ratio is the key parameter that determines the failure mode of the HFSCC shear walls.

Effect of Steel and Prestressed GFRP Bars on Bending and Shearing Failure Modes in Reinforced Beams

Abstract: In recent years, there has been significant progress in using FRP materials as masonry in civil engineering. In this regard, researchers have investigated the behavior of reinforced beams with FRP and steel bars. One way to enhance these sections is to prestress FRP bars to increase sections' bending and shearing strength. Reinforcing with a hybrid bar is a new method in which GFRP and steel bars are combined. In this research, the type of GFRP bars is first determined, and then samples are prestressed. Samples are modeled using LS-DYNA software. Bending and shearing failure modes of reinforced beams with FRP, GFRP, steel, and hybrid bars are analyzed, and finally, load-displacement behavior and crack width are compared. By studying the beam's bending and shearing behavior and failure modes, we found out that using hybrid bars decreases the number of cracks Wider than 0.35 mm in the same displacement and greater loading capacity. By comparing load-displacement diagrams of samples, we conclude that the sample reinforced with hybrid bars has the best function. We can benefit from the anti-corrosion property of GFRP bars by arranging the reinforcements properly. The loading capacity of the sample can be increased by about 65% by prestressing them. Consequently, the displacement of samples decreased.

Quasi‑static Cyclic In‑plane Testing of Slender GFRP-Reinforced Concrete Shear Walls

Abstract: Using Glass fiber-reinforced polymer (GFRP) bars as a replacement for conventional steel bars is one of the most potential solutions to steel-corrosion-related problems in concrete. Their durability and high strength-to-weight ratio make them a cost-effective and applicable alternative to conventional steel bars. This study investigates the characteristic behavior of concrete shear walls reinforced with steel, GFRP, and a hybrid scheme of steel and GFRP bars under seismic loading. Six full-scale RC shear walls with an aspect ratio of 3.25 were tested under pseudo-static reversed-cyclic lateral load to investigate the potential of a hybrid reinforcement scheme of steel-GFRP to improve the seismic behavior of slender RC shear walls. The overall performance of each tested wall was characterized by investigating the hysteretic response, crack propagation, lateral load capacity, and energy dissipation behavior.

Prediction of Highway Embankment Settlement on Clays by the Application of Preloading and Prefabricated Vertical Drains

Abstract: Construction of dual carriageway embankments on smooth clay soils is severely essential problem for the serviceability of subgrade projects. It is a exquisite situation to expect the agreement of the embankment on smooth soil. Generally, Geotechnical trouble is located wherein the soils are composed of smooth clay. In this case, it's miles had to expect the Consolidation agreement of clay. The prefabricated band drains are used for accelerating the consolidation of smooth soils. During the Construction of high-manner troubles on smooth soil, it's miles required to investigate balance associated with the discount of consolidation agreement. In this work, empirical strategies of Prefabricated Vertical Drains (PVDs) & Preloading are used to investigate the agreement comprehensively. By the method of preloading, consolidation of soil may be executed to an extensive quantity earlier than making use of real creation load. The end result of the agreement evaluation of the Highway Embankment withinside the studies vicinity is 248 mm, which takes nearly 21 years for number one consolidations to obtain a 95% degree of consolidation. To lessen the period of consolidation agreement Prefabricated Vertical Drains(PVDs)and Preloading are applied. The Kjellman formulation is used for the estimation of the consolidation time. A triangular sample is followed withinside the intensity of nineteen m with a spacing of 1m and the decreased time for number one consolidation agreement is nearly a hundred and twenty days.