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General Comparison between AISC LRFD and ASD
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Or you can use following load combinations with the parameter ALSTRINC to account for the 1/3 allowable increase for the wind and seismic load.Comparison is between Table 1 of the AISC ASD 9th Edition on Page 1-7 versus Table 2-1 of the AISC LRFD 3rd Edition on Page 2-24. | General Comparison between AISC LRFD and ASD Hamid Zand GT STRUDL Users Group Las Vegas Nevada June 22-25 2005 1 AISC ASD and LRFD AISC American Institute of Steel Construction ASD Allowable Stress Design AISC Ninth Edition LRFD Load and Resistance Factor Design AISC Third Edition 2 AISC Steel Design Manuals 1963 AISC ASD 6th Edition 1969 AISC ASD 7th Edition 1978 AISC ASD 8th Edition 1989 AISC ASD 9th Edition 1986 AISC LRFD 1st Edition 1993 AISC LRFD 2nd Edition 1999 AISC LRFD 3rd Edition