Steel Repair Details Column Flange 6ft 9ft6in Section DWG File

This AutoCAD DWG file illustrates comprehensive steel repair details focusing on corroded column flange treatment and structural strengthening methods. The drawing includes multiple sectional views and knee brace detail showing repair techniques such as flange cleaning and retention, flange removal, and installation of repair components. Key dimensions include a minimum repair length of 6 feet and a typical full repair length of 9 feet 6 inches, ensuring structural integrity across damaged sections. The detail highlights the use of 1-inch by 7-inch filler plates, 3 by 4-inch and 4 by 3-inch high-strength bolts, and 7 by 8-inch A490 bolts spaced at 6 inches center to center. Additional elements include 3 by 3 by 3 by 8-inch knee braces, 5 by 3.5 by 0.75-inch repair angles, and 3-quarter-inch by 7-inch cover plates for reinforcement. The drawing also specifies procedures such as removing corroded steel, drilling 15 by 16 inch diameter holes, restoring concrete, and protecting existing tie rods. This detailed structural repair drawing is essential for engineers and construction professionals working on steel column rehabilitation and strengthening projects in AutoCAD DWG format.