Hi all,
I am trying to come up with a solution for a misplaced pile and I'm struggling to find information on whether the development length of rebar includes or excludes the length of the coupler for a mechanical splice. Our foundation system is augercast piles embedded into grade beams. The...
Hi all,
I'm just curious about what the typical ratio of engineering hourly rate charged to clients vs hourly rate that an employee receives is. My previous employer charged about 4x my hourly rate to clients, and my current employer charges just under 3x my hourly rate. The previous employer...
Hi all,
In ACI318-14 Table 25.4.2.2, "clear cover at least db" is required to avoid using the more conservative development length equations. Without this clear cover, the equations yield a 50% higher development length. Does this apply at a construction joint? For example, at a concrete wall...
Hello all,
I'm currently working on a multi-family project with a podium PT slab and a parking PT slab underneath. The electrical contractor wants to use ENT/Smurf tubing in lieu of metallic conduit. How do you feel about using this type of conduit in slabs? The first issue that comes to mind is...
Hello all,
We have a 5-on-2 with a foundation system consisting of augercast piles connected by grade beams. We have a pour strip at our podium slab that is roughly centered in the building floor plan. The contractor is now requesting that we add construction joints at all slabs-on-grade...
Hello all,
We're having a discussion in our office about the use of non-orthogonal concrete shear walls. The structure is a 6-on-1 wood on PT podium slab. Concrete shear walls support the PT podium slab. We have some disagreement about how to treat the concrete walls in the corner of the slab...
Our office is designing a deep foundation system for a large multi-family building. The deep foundation system consists of piles and grade beams due to a seismic design category of D and a site class of E. We have already been through permit and are now getting strong pushback from the...
