Patent ID: 6826884
Filing Date: 2004-12-07
Classification: E04C,E04F

Abstract:
A hollow flanged joist comprising:a center web section having two center vertical webs and at least one center horizontal web extending between the center vertical webs and generally perpendicular thereto, the center web section having a top end, a bottom end, a right side and a left side and having generally a constant width; a top flange section projecting generally perpendicularly from and substantially beyond the left and right sides of the top end of the center web section, the top flange section having a horizontal flange end web with a left and a right end and a length which exceeds the width of the center web section, a left and right vertical flange side web, each having an inner and an outer end, wherein the outer ends of the left and right flange side webs connect to and extend downwardly and generally perpendicularly from the left and right ends, respectively, of the flange end web, and a left and right horizontal flange inner web, projecting outwardly from the left and right sides, respectively, of the top end of the center web section to the inner ends of the left and right flange side webs, respectively; and a bottom flange section projecting generally perpendicularly from and substantially beyond the left and right sides of the bottom end of the center web section, the bottom flange section having a horizontal flange end web with a left and a right end and a length which exceeds the width of the center web section, a left and right vertical flange side web, each having an inner and an outer end, wherein the outer ends of the left and right flange side webs connect to and extend upwardly and generally perpendicularly from the left and right ends respectively of the flange end web, and a left and right horizontal flange inner web, projecting outwardly from the left and right sides, respectively, of the bottom end of the center web section to the inner ends of the left and right flange side webs, respectively.