Prepared by: Michael A. Tharp P.E.
Distribution: Customer Proprietary
1.0 Executive Summary and Recommendations
objective of this structural analysis was to confirm feasibility and sizing for
a BPI ShadeZone 28 foot x 15.5 foot cantilever
structure and foundation to withstand a customer specified design wind speed of
90 MPH for an application in
Both a finite
element structural models for wind loading in three directions and the structural
analysis hand calculations using information from the
All beam element stresses for columns, rafter, center ridge, cantilever braces were checked against steel allowable stress limits.
Wire rope stresses with the ropes in pretension were calculated for the complete perimeter and the margin of safety was calculated. Calculate MS = 5.5
Buckling of the top cantilever brace under axial loading was also checked.
Column-to-foundation bolting and weld connections remain to be checked and approved before sealing the design drawings.