2. Two pieces of wood, 2in by 4in, are glued together along the 40 degree joint. Determine the maximum safe axial load P that can be applied if the failure normal stress and the failure shear stress are 250psi and 300psi, respectively. Use a factor of safety equal to 1.2. P P 2 in. 40°

A 62.6-kN vertical load P is applied at the corner of the square cross section of the steel compression member AB, which is free at its top A and fixed at its base B. Knowing that for the grade of steel used oy=345 MPa and E= 200 GPa, and using the allowable-stress method, determine the smallest allowable dimension d. B D 1.5 m The smallest allowable dimension dis mm.

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2. Per ACI318-19, choose the correct value of the strength reduction factor ø for the flexural capacity of a beam with ɛ = tension face. 0.0032, where & is the strain for steel reinforcement closest to the (A)0.9 (B) 0.85 (C) 0.75 (D)0.65