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Wind Effects on Low-Rise Buildings: Database-Assisted Design vs. ASCE 7-05 Standard Estimates
This note compares peak bending moments in steel portal frames of industrial buildings in open terrain calculated using database-assisted design (DAD) techniques on the one hand and by using the Analytical Procedure from American Society of Civil Engineers (ASCE) Standard 7-05 (ASCE 2006, Section 6.5) on the other. DAD is a methodology for analysis and design of structures that makes direct use of pressure time histories measured in the wind tunnel (e.g., Whalen et al. 1998, Rigato et al. 2001, Simiu et al. 2003, Main and Fritz 2006). The aerodynamic database used in this study was developed by the University of Western Ontario (UWO). The ASCE 7-05 Analytical Procedure entails the use of simplified coefficients, referred to in the Commentary of the Standard (Section C6.5.11 and Fig. C6-6) as pseudo-pressure coefficients, and based on wind tunnel data measured at UWO mostly in the 1970s (Davenport et al. 1979). The pseudo-pressure coefficients were developed with the aim of enveloping peak values of bending moments at the knees and ridge, resultant vertical uplift and horizontal shear for a total of about 15 distinct building geometries.
Wind Effects on Low-Rise Buildings: Database-Assisted Design vs. ASCE 7-05 Standard Estimates
This note compares peak bending moments in steel portal frames of industrial buildings in open terrain calculated using database-assisted design (DAD) techniques on the one hand and by using the Analytical Procedure from American Society of Civil Engineers (ASCE) Standard 7-05 (ASCE 2006, Section 6.5) on the other. DAD is a methodology for analysis and design of structures that makes direct use of pressure time histories measured in the wind tunnel (e.g., Whalen et al. 1998, Rigato et al. 2001, Simiu et al. 2003, Main and Fritz 2006). The aerodynamic database used in this study was developed by the University of Western Ontario (UWO). The ASCE 7-05 Analytical Procedure entails the use of simplified coefficients, referred to in the Commentary of the Standard (Section C6.5.11 and Fig. C6-6) as pseudo-pressure coefficients, and based on wind tunnel data measured at UWO mostly in the 1970s (Davenport et al. 1979). The pseudo-pressure coefficients were developed with the aim of enveloping peak values of bending moments at the knees and ridge, resultant vertical uplift and horizontal shear for a total of about 15 distinct building geometries.
Wind Effects on Low-Rise Buildings: Database-Assisted Design vs. ASCE 7-05 Standard Estimates
B. F. Coffman (author) / J. A. Main (author) / D. Duthink (author) / E. Simiu (author)
2006
16 pages
Report
No indication
English
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