(Solved): A 10.2-ft-long simply supported timber beam carries a 5.8-kip concentrated load at midspan. The cro ...

A 10.2-ft-long simply supported timber beam carries a 5.8-kip concentrated load at midspan. The cross-sectional dimensions of th timber are shown in the second figure. Assume $$L=5.1\mathrm{ft},\mathrm{x}=2.1\mathrm{ft},a=3.2\mathrm{in},b=7.9\mathrm{in},c=1\mathrm{in}$$, and $$d=13$$ in. (a) At section $$a?a$$, determine the magnitude of the shear stress $$T_H$$ in the beam at point $$H$$. (b) At section $$a$$-a, determine the magnitude of the shear stress $$r_k$$ in the beam at point $$K$$. (c) Determine the maximum horizontal shear stress $$I_{\max }$$ that occurs in the beam at any location within the 10.2-ft span length. (d) Determine the maximum tension bending stress $${?}_{\max }$$ that occurs in the beam at any location within the 10.2-ft span length. Answers: (a) $$T_H=$$ (b) $$T_k=$$ (C) $$T_{\max }=$$ (d) $${?}_{\mathrm{tax}}=$$