Material strength task

No.11582719 ViewReplyOriginalReport
Due to the quarantine, without internet, I lost some virtual classes, could someone help me to solve this task?

For the construction of an advertisement the following structural design is presented, which consists of 2x2x1/8 angles and the support is an AISC Pipe 12 STD tubular structural profile. The body of the advertisement will be covered in galvanized sheet, the width of the notice is 500mm (0.50m).
The notice will be installed on the roof of a 6-story building, with a height between floors of 3.50m.

For the area where the project will be carried out, the pressure exerted by the wind between 21.00m and 25.50m in height is 0.588kPa on average.

You are called to review the proposed design, for which you must complete the information by selecting the galvanized sheet for the coating, according to the technical information provided by the sheet supplier. Attached is this information.

Next, you must carry out the evaluation of the structural safety of the support using the distortion energy criterion, for which you must select the mechanical properties of the materials.

You will need to perform the structural review of the support in all probable scenarios. If the design does not comply, propose alternatives to improve structural safety.

The calculation memory must be attached, showing the steps for the selection of the sheet and the evaluation of the safety factor of the support pipe.
The main stresses must be obtained through Mohr's circle and eigenvalues.
annexed:


https://www.slideshare.net/nicotov/task-232272970