PSAD SITUATION 57: Shear Strength Provided by Steel and Concrete | CELE November 2021

CELE Past Board Exam Problem Check out our Review Center: https://www.facebook.com/share/1AC24W... SITUATION 57: The design of a beam yields the following: Dimensions: h1 = 110 mm; h2 = 490 mm; b = 375 mm As’ = 3 – 28 mm diameter bars As = 5 – 28 mm diameter bars Effective cover to centroid of As = 75 mm Concrete compressive strength, fc’ = 34 MPa Longitudinal steel yield strength, fy = 413 MPa Lateral ties yield strength fyv = 275 MPa Shear strength reduction factor = 0.75 1. Calculate the nominal shear strength (kN) provided by 12 mm diameter ties spaced at 100 mm on center. A. 490 C. 460 B. 520 D. 540 2. Calculate the nominal shear strength (kN) provided by the concrete. A. 225 C. 215 B. 165 D. 195 3. The beam is to be redesigned for a shear force of 455 kN. Using 10 mm diameter ties spaced at 90 mm center to center, how much is the required width (mm) of the beam? A. 425 C. 380 B. 440 D. 390