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The beam is constructed from two boards. If each nail can
Chapter 11, Problem 11-11(choose chapter or problem)
The beam is constructed from two boards. If each nail can support a shear force of 200 lb, determine the maximum spacing of the nails, \(s, s^{\prime}, \text { and } s^{\prime \prime}\), to the nearest \(\frac{1}{8}\) inch for regions AB, BC, and CD, respectively.
Questions & Answers
QUESTION:
The beam is constructed from two boards. If each nail can support a shear force of 200 lb, determine the maximum spacing of the nails, \(s, s^{\prime}, \text { and } s^{\prime \prime}\), to the nearest \(\frac{1}{8}\) inch for regions AB, BC, and CD, respectively.
ANSWER:
Problem 11-11The beam is constructed from two boards. If each nail can support a shear force of 200 lb, 1determine the maximum spacing of the nails, 5, s’, and s”, to the nearest inch for regions AB,BC, and CD, respectively Step-by-step solution Step 1 of 12 ^Apply equilibrium equations and calculate the reaction forces. F y0 RB R =D00 + 1500 ……….(1) R + R = 2000 B DHere, R aB R are Daction forces at B and D.Calculate the moment about point D. M = 0 D -500 x 15 + (R x 1B - 1500 x 5 = 0 10R = 15000 B RB 1500 lbCalculate the value for R . DSubstitute 1500 lb for R in equation (1). B RB R =D000 1500 + R = D 0 R = 500 lb D\n