Wind loading controls most tower designs….
The February 2018 issue of AGL Magazine features an article from FDH’s Dennis Abel, PE, director of new product development, on “Wind Loading Changes in TIA-222-H.”
Abel, who is a member of the TR-14 Committee that develops the TIA-222 design standard, contributed to the new standard, known as Revision H, and will provide two more articles this year for AGL Magazine on the implications of the standard on tower owners and wireless carriers.
The first article focuses on the major changes associated with wind loading criteria, such as wind speed, ground elevation factor, topographical factor, rooftop wind speed up factor, wind direction probability factor for concealment poles, wind pressure coefficients for poles, and ice loading. Future articles will address existing structures, steel and concrete strengths, seismic analysis, mount analysis, and inspections and mappings.
The new standard, titled “ANSI/TIA-222-H: Structural Standard for Antenna Supporting Structures and Antennas and Small Wind Turbine Support Structures,” was published October 2017 and became effective January 1, 2018.