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Excel Engineering Calculators  | Engineering Calculators

Per ASCE 7-05 Code for Enclosed or Partially Enclosed Buildings
Using Method 2: Analytical Procedure (Section 6.5) for Buildings of any Height

Program Description:

Case 1: Full design wind pressure acting on the projected area perpendicular to each principal axis of the structure, considered separately along each principal axis.
Case 2: Three quarters of the design wind pressure acting on the projected area perpendicular to each principal axis of the structure in conjunction with a torsional moment as shown, considered separately for each principal axis.
Case 3: Wind pressure as defined in Case 1, but considered to act simultaneously at 75% of the specified value. (Note: Load Case 3 would approximate "oblique" applied wind loading.)
Case 4: Wind pressure as defined in Case 2, but considered to act simultaneously at 75% of the specified value.

Notes: 1. Design wind pressures for windward (Pw) and leeward (PL) faces shall be determined in accordance with the provisions of Section 6.5.12.2.1 and 6.5.12.2.3 as applicable for buildings of all heights.
2. Above diagrams show plan views of building.
3. Notation:
Pwx, Pwy = Windward face pressure acting in the X, Y principal axis, respectively.
PLx, PLy = Leeward face pressure acting in the X, Y principal axis, respectively.
e (ex, ey) = Eccentricity for the X, Y principal axis of the structure, respectively.
MT = Torsional moment per unit height acting about a vertical axis of the building.

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