Bridges are infrastructure buildings that are commonly used and very functional in everyday. One of the structural components of the bridge is a reinforced concrete beam as a load bearer that will be forwarded to the foundation. The shear capacity of reinforced concrete beam structures sometimes cannot meet the existing requirements. This can be caused by increased loads, inadequate shear strength in the initial design and material damage due to natural factors. There are several methods that have been carried out to overcome the decrease in shear strength in beam structures, namely reinforcement methods by externally bonded (EB) and near-surface mounted (NSM). In reality, shear reinforcement with EB and NSM methods in implementation only relies on epoxy adhesion and concrete blankets, which still causes structural failure. The deep embedment strengthening method (DE) can be proposed as a shear reinforcement for reinforced concrete beams to overcome the previous problems. Reinforcement with DE method is a shear reinforcement that is reinforced in the core of reinforced concrete beams. This research was conducted by embedding 8 reinforcements vertically with a distance of 200 mm along the shear span. In this study, finite element modeling was carried out using ABAQUS. The results of finite element modeling with the DE method showed that the maximum load was 30.646 kN and the maximum deflection was 13.00 mm. The collapse model that occurs from finite element modeling on test specimens with DE reinforcement experiencing flexural failure.
In this study, the authors conducted torsion testing to determine the mechanical properties obtained from plain reinforcing steel (BJTP) and Carbon Steel as anchor threads on tower poles. The aim is to determine the strength and toughness of a specimen for anchorage threads. The results calculated or sought in this test are shear stress (?), shear strain (?), moment of inertia (J), modulus of shear elasticity (G), and perform material comparisons. And to know the mechanical properties of the material. Ankur is a type of nail that functions to unite the upper structure with the lower function of the steel anchor, namely as a hook or foundation on a street light pole or other pile foundation. The main loading of the anchor threaded shaft on the tower pole is the torsion that occurs in the tower pole element or other loading such as tensile and compressive. The strength of the screw shaft anchor on the tower pole must be known using a torsion test tool (torque test). A torsion test is a tool designed to measure how much torsional strength can be performed during testing. anchor threaded shaft on tower pile Research results of po reinforcing steel specimens los(BJTP) compared to Carbon steel. Some research results such as moment of inertia (J) shear stress (?) shear strain (?) modulus of elasticity (G). The results show that the moment of inertia of BJTP is 2.39x10-9m4, while the moment of inertia of the Carbon specimen Steel is 2.39x10-9m4. The shear stress result from BJTP is 65.509 Mpa, while the shear stress result from Carbon Steel specimen is 62.921 Mpa. The result of BJTP shear strain is 3.705 Mpa, while the shear strain result is 3.705 Mpa of the Carbon Steel specimen is 4.120 Mpa. And the result of the modulus of elasticity of BJTP is 0.1768 Mpa, while the result of the modulus of elasticity of Carbon Steel is 0.1527 Mpa.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.