Stress calculations for T & D structures are based on
an elastic analysis. the effects of bracing, interpole ties, guying,
actual member sizes, differences in support elevations, support movements
and erection tolerances are accounted for in the structure's design. The
effects of deflection and it's secondary moment are included in the
analysis to check the general stability and local buckling tendencies of
the structure.
Allowable stresses in the structure are and their components are in
accordance with ASCE's Design of Steel Transmission Pole Structures, and
ANSI/NEMA standard No. TT1 latest edition.
Structure geometry shall be in accordance with the information supplied by
the customer on "Structure Configuration Sketches."
Anchor bolts are considered to be part of the structure and are
designed and supplied by TAPP. Allowable bond stresses of
"steel-concrete" are described in ACI 318 latest edition. The
compressive strength of concrete is assumed to be 3,000 psi unless
otherwise specified by the customer. |
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