1-Deformed and Plain Billet-Steel Bars for Concrete_2

1-Deformed and Plain Billet-Steel Bars for Concrete_2 -...

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American University of Sharjah College of Engineering Department of Civil Engineering Instructor: Arshi Faridi E-mail : afaridi@aus.edu Course: CVE 202 Experiment #: 1 Deformed and Plain Billet-Steel Bars for Concrete Reinforcement Purpose: To determine the tensile properties of deformed and plain steel bars for concrete reinforcement according to ASTM A-615. Background: Structural engineers need to know the strength and deformation characteristics of the material used in construction when making calculations to assess the load carrying capacity of the structural elements. For steel, this information can be measured in the tensile test. The results obtained in tensile testing are of considerable importance to engineers and designers. In many instances, a metal component does not have to fracture to be deemed to have failed in service; plastic deformation and buckling is failure and, in consequence, it is vital to know the level of stress at which plastic yielding begins. Some metals, principally steels, possess a pronounced yield point, but most show a smooth transition from elastic to plastic deformation behavior. In the tensile test, the specimen is pulled in a testing machine until it fractures. During the test, the force and elongation of the sample are recorded. These tests provide information on the stress and strain
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1-Deformed and Plain Billet-Steel Bars for Concrete_2 -...

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