Title:
Column-Foundation Connections with Cast-in-place Headed Anchors
Author(s):
Jack Moehle
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/25/2020
Abstract:
Steel and precast columns are commonly designed to transfer moment to concrete foundations through cast-in-place headed anchors. Engineers responsible for the design of these connections can apply a variety of design provisions, including provisions for anchoring to concrete (ACI 318 Chapter 17), beam-column joints (ACI 318 Chapter 18), and the strut-and-tie method (ACI 318 Chapter 23). For any given connection, the strengths calculated with these different provisions can differ widely. Simulated earthquake tests of full-scale, interior column-foundation connections with headed anchors were carried out to explore failure modes and strengths. Design models and nonlinear finite element simulations provide additional insight into the performance of these connections. The presentation will focus on the design implications of the study