Differences Between 4Ab Heads and 9Ab Heads

Introduction   This document has been prepared to address the common questions related to differences between 4Ab heads vs. 9Ab heads.   Background   Heads or headed bars are commonly described or referred to based on bearing area.   4Ab head...

Structural Behavior of Repaired Pier Walls

Document Name: 97-S28 Author(s): M. Haroun, G. Pardoen, H. Bhatia, S. Shahi, and R. Kazanjy Publication: Structural Journal Volume: 97 Issue: 2 Keywords: concretes; cyclic testing; pier wall; repair; T-headed crossties. Date: March 1, 2000 Abstract: Six 1/2-scale...

Double Head Studs as Ties in Concrete Walls and Columns

Title: Double Head Studs as Ties in Concrete Walls and Columns Author(s): Walter H. Dilger and Amin Ghali Publication: Concrete International Volume: 19 Issue: 6 Date: June 1, 1997 Abstract: Testing of concrete walls and columns subjected to axial compression shows...

T-Headed Stirrup Bars

Title: T-Headed Stirrup Bars Author(s): DALE E. BERNER, BEN C. GERWICK JR., AND GEORGE C. HOFF Publication: Concrete International Volume: 13 Issue: 5 Date: May 1, 1991 Abstract : Structural elements subject to high out-of-plane shear and those needing confinement for...