Site specific factors such as geographic location, elevation, and surrounding terrain can greatly impact the wind force applied to a structure.
Various methods may be used to determine the topographic factor caused by the wind speed-up effect. Understanding when topographic features are present and which methodologies to follow will ensure the most accurate results when calculating the wind force for a specific site. See additional topics:
- Topographic Features
- Method 1 – Simplified Topographic Factor Procedure
- ANSI/TIA-222-H Section 2.6.6.2.1
- Method 2 – Rigorous Topographic Factor Procedure
- ANSI/TIA-222-H Section 2.6.6.2.2
- Method 3 – Site Specific Topographic Procedure
- ANSI/TIA-222-H Section 2.6.6.2.3
- Reduction Factors
- Accuracy as it relates to cost
