4-bolt fastener to mount a Pipe Mast

[hockeyfan960]

I need help starting the calculation for a Pipe Mast that is welded to a 8"x8"x1/4" plate with 2 U-Bolts holding the pipe and plate to a CMU wall. I added a sketch...

Not sure where to start....

 

[ishvaaag]

Assume first everything will be of enough strength and derive some forces to be transmitted to the masonry; then you will have what is forcing the masonry out of its previous state and analyze for the demands. You may use imlifications in such first analysis, such moments being somewaht overestimated and that the top outfit only meets tension and lower meets compression plus shear and so on.

Then one would have to check the details in accord to some good practice, code, or science of construction, connections and masonry itself. You may need to use RC insets to properly take the forces and spread them to the masonry.