TY - CONF AU - John Gross C2 - North American Steel Construction Conference | 12th | | American Institute of Steel Construction (AISC) DA - 2001-05-01 LA - en PB - North American Steel Construction Conference | 12th | | American Institute of Steel Construction (AISC) PY - 2001 TI - AISC Design Guide No. 12 Modification of Existing Welded Steel Moment Frame Connections for Seismic Resistance ER -