I am a fairly new engineer (just graduated and started back in August) and am having some concerns about a current design I am working on.
We have a segmental retaining wall that a contractor wants to replace the bottom portion of with a 6' tall concrete footing instead due to some watermains they do not want to have to worry about.
After initial design and everything, I found that the footing would be a 6' tall by 7.5' deep footing that went for 150'. After this I went to design the reinforcement like I normally would for a strip footing and when I brought my findings to a senior engineer, they said that the contractor wanted to not use any reinforcement. Having done most of my classwork solely on reinforced concrete, I am having trouble seeing how a 6'x7.5'x150' footing will require no reinforcement? The engineer pointed to how the calcs from the software we use show that no reinforcement is required.
I have read through chapter 14 of ACI 318-14 on plain concrete multiple times and I am just having concerns as I have not worked with plain concrete before.
I apologize if this is a weird question but I was just wondering if footings/concrete of this size are typically designed as plain concrete?
Thank you for any and all discussion
We have a segmental retaining wall that a contractor wants to replace the bottom portion of with a 6' tall concrete footing instead due to some watermains they do not want to have to worry about.
After initial design and everything, I found that the footing would be a 6' tall by 7.5' deep footing that went for 150'. After this I went to design the reinforcement like I normally would for a strip footing and when I brought my findings to a senior engineer, they said that the contractor wanted to not use any reinforcement. Having done most of my classwork solely on reinforced concrete, I am having trouble seeing how a 6'x7.5'x150' footing will require no reinforcement? The engineer pointed to how the calcs from the software we use show that no reinforcement is required.
I have read through chapter 14 of ACI 318-14 on plain concrete multiple times and I am just having concerns as I have not worked with plain concrete before.
I apologize if this is a weird question but I was just wondering if footings/concrete of this size are typically designed as plain concrete?
Thank you for any and all discussion