Confinement Effects of Spirals and Hoops on Axial Behavior of UHPC Columns

Presented By: Milana Cimesa, University of Nevada Reno Description: This presentation will discuss recent experimental results from large scale axial testing of circular UHPC columns at the 4000-kip testing facility at the University of California, Berkeley. Four 16-inch diameter and 9-ft high columns were fabricated at a precast plant in CA with varying transverse reinforcement detailing that included spiral versus hoops with 1.5-inch and 3-inch spacings. The tests results are summarized and practical findings on the effects of spiral and hoop reinforcement detailing on the axial behavior of UHPC columns are presented.