C-Concepts, inc.

ERITowerJobFree-Standing Tower DemoPage1 of 80C-Concepts, inc.12612 W. Mill RoadMenomonee Falls, WI 53051Phone: (262) 252-3173FAX: (262) 252-3134ProjectClientExampleC-Concepts, Inc.Date18:26:48 01/28/03Designed byhornTower Input DataThe main tower is a 3x free standing tower with an overall height of 300' above the ground line.The base of the tower is set at an elevation of 0' above the ground line.The face width of the tower is 6'8-1/4'' at the top and 36' at the base.This tower is designed using the TIA/EIA-222-F standard.The following design criteria apply:Basic wind speed of 70 mph.Nominal ice thickness of 0.5000 in.Ice density of 56 pcf.A wind speed of 61 mph is used in combination with ice.Deflections calculated using a wind speed of 50 mph.Moments in legs is considered.Feedline torque is considered.Pressures are calculated at each section.Stress ratio used in tower member design is 1.333Wind 180Leg AWind 90Face AFace BLeg CLeg BFace CWind NormalTriangular TowerTower Section GeometryTowerSectionTowerElevationSectionWidthNumberofSectionsSectionLengthDiagonalSpacingBracingTypeHasK BraceEndPanelsHasHorizontalsftftftftT1 300'-280' 6'8-9/32'' 1 20' 6'8-1/32'' X Brace No NoT2 280'-260' 8' 1 20' 6'8-1/32'' X Brace No NoT3 260'-240' 10' 1 20' 6'8-1/32'' X Brace No No