This program is a workbook consisting of eight (8) worksheets, described as follows:
Worksheet Name Description
Doc This documentation sheet
MWFRS (Any Ht.) Main Wind-Force Resisting System for buildings of any height
Wind Map Basic wind speed map (Figure 6-1 of ASCE 7-02 Code)
Program Assumptions and Limitations:
1. This program assumes only enclosed or partially enclosed buildings. Open buildings are NOT considered.
3. In the worksheet for Simplified analysis, the design MWFRS wind load is calculated for each direction.
The design MWFRS load is assumed to be the total wind load on either the width or the length of the
4. Worksheet for MWFRS (Low-Rise) is applicable for low-rise buildings as defined in Section 6.2.
5. Worksheets for MWFRS (Any Ht.), Wall C&C, and Roof C&C are applicable for buildings with mean roof
heights of up to 500 feet.
6. In worksheets for MWFRS (Any Ht.), Wall C&C, and Roof C&C the user may opt to utilize user designated
"steps" in height, "z", in determining the wind pressure distribution.
7. Worksheets for MWFRS (Any Ht.) and for Stacks & Tanks can handle “rigid” as well as “flexible” buildings
and structures. For “rigid” buildings or structures, this program uses the smaller value of either 0.85 or the
calculated value from Section 126.96.36.199 of the Code for the gust effect factor, 'G'. For “flexible” buildings or
structures, this program calculates the gust effect factor, ‘Gf’, per Section 6.5.8 of the Code based on the
assumed formula for the fundamental period of vibration from Section 188.8.131.52 of the Code.
10. This program contains numerous “comment boxes” which contain a wide variety of information including
explanations of input or output items, equations used, data tables, etc. (Note: presence of a “comment box”
is denoted by a “red triangle” in the upper right-hand corner of a cell. Merely move the mouse pointer to the
desired cell to view the contents of that particular "comment box".)
Last edited by Kelly Bramble; 03-19-2013 at 10:57 AM.