a web thickness of 8mm. Total depth of 1- section is 325mm. a. Determine the plastic section modulus. b. Determine the shape factor. c. Determine the plastic moment capacity of the section if Fy = 345MPa

A wooden beam is fabricated by nailing together three pieces of dimension lumber as shown. The cross-sectional dimensions of the beam are also shown. The centroid is 3.4 in. below the top surface of the beam, and the moment of inertia about the z axis is 230.9 in.4. The beam must support an internal shear force of V = 365 Ib. If each nail can provide 120 Ib of horizontal resistance, determine the maximum spacing sfor the nails. 2 in. 4 in. 2 in. 2 in. 8 in. O 4.86 in. 8.32 in. O 7.91 in. 9.36 in. O 5.59 in.

The indicated bridge girder is subject to a differential temperature increase equal to 20°C (T1 = 40°C, T2 = 20°C). Using Cross's method, draw your DMF. Suppose: Beams and Columns of 0.5 x 0.5 m. α = 10^-5/°C Average ambient temperature= A =30°C 4.0 m 4.0 m 4.0 m T1 T2 3.0 m