Answer Happy

Question 4 3 pts What happens to the behaviour of beam if the width is increased while other beam variables remain constant? O The ductility of the beam is decreased significantly. The ductility of the beam is increased significantly. O The strength of the beam is increased significantly. O The strength of the beam is decreased.
Question 3 For a single layer of steel reinforcement, calculate the stress in the steel if the section has a steel strain of 0.002. O 270 MPa O 400 MPa O 420 MPa O Insufficient data
Question 1 3 pts Which of the following statements is true? O Working stress design attempts to ensure adequate safety under extreme loads. Capacity design is a design process that considers the redistribution of moments as successive cross sections yield, thereby forming plastic hinges that lead to a plastic mechanism. O Strength design does guaranty serviceability under service loads In an overreinforced design, the steel fails first but failure is gradual with the steel yielding.
D Question 5 It is the slope of the stress-strain curve at the origin. Initial tangent modulus of elasticity O Tangent modulus of elasticity O Secant modulus of elasticity O Poisson's Ratio of concrete 3 pts