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Wind pressure on structures (WS)
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| Setting | Description |
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| Base Pressure (bp) |
applied to the surface area of the superstructure as seen in elevation, according to AASHTO 3.8.1.2.1-1 for beams. |
| Height (h) |
effective height of area exposed to wind. |
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Wind Pressure on Vehicles (WL)
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When vehicles are present, the design wind pressure shall be applied to both structure and vehicles. Wind pressure on vehicles is represented by an interruptible, moving force of 1.46 KN/m.
| Setting | Description |
|---|
| Line load (ll) |
moving force acting normal to the roadway and transmitted to the structure. |
| Eccentricity (ecc) |
distance above the bridge deck for the line load. |
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Vertical Wind Pressure (W-up)
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| Setting | Description |
|---|
| Pb-up |
In absence of live loads, an upward load of 9.6 × 10-4 MPa is multiplied by the width of the superstructure and applied at the windward quarter point simultaneously with the horizontal wind loads applied perpendicular to the length of the bridge. |
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