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2. Overview of Atlas Version 6.01 Scope of Update
Wind Pressure Equation (AASHTO 2006) has been implemented.
Pole design is performed according to FDOT Standard Index 17725, which requires both service load and factored load checks.
New features of Atlas V6.01 are as follows:
User can input wind velocity as either user-defined velocity or selection of county (Florida)
Foundation Design has been updated in order to determine the Embedment Length of Pole
Results Viewer is available to navigate through the output data.
Wind angle is limited between zero and ninety degrees.
3. New Wind Pressure Equation (AASHTO 2006) Wind Pressure Equation (AASHTO 2006) is used to compute wind loading.
4. FDOT Standard Index 17725 FDOT Standard Index 17725 is implemented to select pole size that meets both service load and factored load requirements.
5. Wind Velocity Selection by County User can choose county to select wind velocity
6. Foundation Design Foundation Design accounts for Phi Factor (strength reduction factor) to determine the embedment depth using Broms method.
7. Cable Design Cable Design in V6.01 remains same as V5.04 using an approach shown below:
This approach is intended to retain a same SF used in Version 5.04
8. Result Search Tool Results Viewer is to help users search for analysis results by key word index
9. Results Comparison (V5.04 vs. V6.01) Applied Wind Velocity 100 mph
Version 5.04 NV pole
Version 6.01 PIV pole
Wind velocity of V6.01 equivalent to a wind velocity of 100 mph using V5.04 ~ 145 mph
Conservative error in wind load application in V5.04 has been corrected.
10. Summary To quantify
Influence of severe wind on system response
Effect of pole and cable size on system performance
Total structural demand and adequate design
Quantification of forces in a worst case of wind
Iterative analyses with required pole/cable design