I came across a concrete pier design with horizontal anchor rod shear (HARS) bars shown in the plan view attached. I am wondering if these bars are required? It seems that from ACI 318-19 Section 10.7.6.1.6, the anchor rods are considered confined already due to the presence of the ties. The...
Sorry for the confusion. I meant drilled pier instead of column. Numbers are correct, 18’ is I use cb as the distance between new and existing rebars.
The intention is to add bending moment capacity for the pier. The new rebar size are 11 and the existing ones are 8. Here is a sketch (hope I...
I am a little bit stuck on one of my project. The project is adding new post-installed rebars on existing round pier. When calculating its development length, what is cb? The definition of cb in ACI is the lesser of side cover (not governed in my case) and spacing of the bars being developed...
I encounter an approach that I am not quite familiar with. I use arbitrary number in the description below:
A 15’ long concrete drilled pier was reinforced using 10’ long post-installed rebars. The additional rebars have 4’ development length.
Resistance A: original rebar + post-installed...
