Testing of Precast Bridge Bent Cap Connection Details

Texas Department of Transportation (TxDOT) has been utilizing precast bent-caps in recent bridge projects, as an alternative solution for cast-in-place type construction. Although precast bent-caps look like to pace construction process on site, there are several challenges need to be carefully examined. These include economy, ease of erection, durability, and load transfer issues. To address the concerns, four precast bent-caps with single line grout pocket, double line grout pocket, vertical duct, and bolted type connection details were designed and tested.