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"ASCE702W" --- ASCE 7-02 CODE WIND ANALYSIS PROGRAM
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Program Description:
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"ASCE702W" is a spreadsheet program written in MS-Excel for the purpose of wind loading analysis for buildings
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and structures per the ASCE 7-02 Code. Specifically, wind pressure coefficients and related and required
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parameters are selected or calculated in order to compute the net design wind pressures.
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This program is a workbook consisting of eight (8) worksheets, described as follows:
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Worksheet NameDescription
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DocThis documentation sheet
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SimplifiedAnalysis using simplified method for low-rise buildings with h <= 60’
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MWFRS (Low-Rise) Main Wind-Force Resisting System for low-rise buildings with h <= 60’
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MWFRS (Any Ht.)Main Wind-Force Resisting System for buildings of any height
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Wall C&CAnalysis of wall Components and Cladding
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Roof C&CAnalysis of roof Components and Cladding
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Stacks & TanksAnalysis of cantilevered chimneys, stacks, and vertical tanks
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Wind MapBasic wind speed map (Figure 6-1 of ASCE 7-02 Code)
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Program Assumptions and Limitations:
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1. This program assumes only enclosed or partially enclosed buildings. Open buildings are NOT considered.
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2. Worksheet for Simplified analysis is applicable for low-rise buildings meeting the criteria of Section 6.4.1.
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3. In the worksheet for Simplified analysis, the design MWFRS wind load is calculated for each direction.
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The design MWFRS load is assumed to be the total wind load on either the width or the length of the
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building respectively.
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4. Worksheet for MWFRS (Low-Rise) is applicable for low-rise buildings as defined in Section 6.2.
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5. Worksheets for MWFRS (Any Ht.), Wall C&C, and Roof C&C are applicable for buildings with mean roof
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heights of up to 500 feet.
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6. In worksheets for MWFRS (Any Ht.), Wall C&C, and Roof C&C the user may opt to utilize user designated
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"steps" in height, "z", in determining the wind pressure distribution.
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7. Worksheet for Stacks & Tanks is applicable for cantilevered structures up to 600 feet tall.
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8. Worksheets for Wall C&C and Roof C&C are applicable for flat roof buildings, gable roof buildings with roof
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angles <= 45 degrees, and monoslope roof buildings with roof angles <= 3 degrees.
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9. Worksheets for MWFRS (Any Ht.) and for Stacks & Tanks can handle “rigid” as well as “flexible” buildings
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and structures. For “rigid” buildings or structures, this program uses the smaller value of either 0.85 or the
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calculated value from Section 6.5.8.1 of the Code for the gust effect factor, 'G'. For “flexible” buildings or
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structures, this program calculates the gust effect factor, ‘Gf’, per Section 6.5.8 of the Code based on the
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assumed formula for the fundamental period of vibration from Section 9.5.5.3 of the Code.
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10. This program uses the equations listed in the reference, “Guide to the Use of the Wind Load Provisions of
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ASCE 7-02” for determining the external wind pressure coefficients, ‘GCp’, used in the Wall C&C and Roof
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C&C worksheets.
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11. This program contains numerous “comment boxes” which contain a wide variety of information including
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explanations of input or output items, equations used, data tables, etc. (Note: presence of a “comment box”
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is denoted by a “red triangle” in the upper right-hand corner of a cell. Merely move the mouse pointer to the
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desired cell to view the contents of that particular "comment box".)
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