Post-Installed Flexible Connections in Parking Structure Rehabilitation: A Technical Comparison of Repair Methodologies
By Northford Structural Connections The precast concrete parking industry is facing an infrastructure inflection point. Structures built during the construction boom of the 1970s through 1990s are now 30 to 50 years into their service life, and their double tee shear connections — the discrete mechanical links that maintain diaphragm continuity across the deck — […]
Why Precast Parking Structure Connections Fail — and What the Industry Gets Wrong About Repair
By Northford Structural Connections Every structural engineer who has walked a precast parking garage past its second decade has seen the same progression: water infiltration at the joints, chloride-laden moisture reaching the embedded steel, corrosion expanding the concrete matrix, and eventually — weld fatigue fractures that sever the shear connections holding the double tees together. […]