SITUATION. The tower for a transmission line is modeled by the truss shown. The crossed members in the center section of the truss may be assumed to be capable of supporting tension only. Given: P=2.8kN 8=15⁰ a=3m b=3m c= 5m

We are given the statically indeterminate structure in Fig. 1, with a degree of indeterminacy of 2. The value of EI is 5·10^7 kip-in2 for both members. The effect of axial deformations is neglected. You are asked to solve the structure; that is, calculate the support reactions and the internal loading diagrams.

The force in the member AC of the frame as shown in figure given below is [Take AE as constant for all the members] B 45° 90% с 1000 N D N.

The figure shows a beam made from a material having an allowable tensile stress of 135 MPa and a compressive stress of 165 MPa. The couple M is applied to the beam in a plane forming an angle of 45° as shown in the figure. a) Determine the location of the centroid of the cross section b) Calculate the moments of inertia about the principal axes, I, and ly c) Determine the maximum allowable internal moment M that can be applied to the beam N M Y 140 mm 140 mm 45⁰ 140 mm 280 mm 140 mm 140 mm