Below is a representative elevation of a brace frame for a small facility. As a structural designer, I was tasked with putting together a representative design sections for the anticipated loads on the structure at this frame.

The provided connection detail of the tension member is provided on the right $($S$27/12).$ The connections features $(2)3/4"$ bolts that connect an A$36$ Steel L$665/8"$ in one single row. The bolt holes are placed at the centerline of the of the angle's face, i$.$e$.,3"$ from the bottom of the angle. The steel erector submitted a request for information $($RFI$)$ asking if the angle can be replaced with a steel rod to help save money for the project. The steel erector has asked you to determine if a steel cable will be feasible for this application.

$($I$)$ Computing Capacities: Determine the controlling design capacity for the tension member. Be sure to include checks on section yielding rupture, and block shear to determine this.

$(2)$ Adjusting for Design: Using the controlling design capacity, determine what the minimum equivalent sized tension rod of $A36$ steel would need to be in order to replace the steel angle used in the original design. Be sure to do all necessary checks. $($Hint: this would include slenderness checks since this is at a bracing location$)$

$(3)$ Draft a short response to the RFI with your recommendation if the steel angle can$/$should be replaced by a steel cable.