Q. 2 A total of 58 AISI 1018 cold-drawn steel bars were tested to determine the 0.2 percent offset yield strength Sy. The results are Sy, kpsi 64 68 f 2 72 76 80 84 88 92 669 19 10 4 2 Where Sy is the class midpoint and f is the class frequency. Estimate the mean and 250

For the beam shown, find the reactions at the supports and plot the shear-force and bending-moment diagrams. = 450 lbf, V2 = 35 lbf/in, V3 = 12 in, and V4 = 4 in. v3 A v1 v4 B Provide values at all key points shown in the given shear-force and bending-moment diagrams. A SITIVE FIVE d v4 Shear Diagram v2 D 0.00 3x in.) P R 0.00

B10

What is the reaction of shear stress on the cross-section?

Learning Goal: To analyze two built-up members that have the same geometry but are fastened differently, determine the maximum applicable shear force on each cross section, and determine the adjustment in spacing between the weaker member's fasteners that would allow the member to support the equivalent maximum shear force of the stronger member. The two cross sections shown below, (a) and (b), are subjected to a vertical shear force as shown. The members are fastened by nails that can support a load of 22.00 kN each and are spaced perpendicularly to the page in increments of s = 125.0 mm. The geometries of the cross sections are given by a = 235.0 mm, b = 50.00 mm, c = 225.0 mm, d = 135 mm, and e = 275 mm. Assume the cross sections are uniform along the entire lengths of the members. bk (a) Part A - Maximum applicable shear force on the member (a) *ak b 17 b ➜bk ➜bk Determine the maximum applicable shear force on the member (a). Express your answer to four significant figures and…