Duct Bank Reinforcing
Duct Bank Reinforcing
(OP)
Question came from an electrical engineer. For a cast in place underground electrical duct bank, that doesn't go underneath a road or other specific load source, are there guidelines for reinforcing/not reinforcing these? I could see adding temperature and shrinkage steel to make the thing stay solid, but I'm wondering, is that industry standard?
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)






RE: Duct Bank Reinforcing
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RE: Duct Bank Reinforcing
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
RE: Duct Bank Reinforcing
We have provided on limited cases where the duct bank ended up being load bearing from a footing placed over it.
My experience is in healthcare and education design, what you are describing.
RE: Duct Bank Reinforcing
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
RE: Duct Bank Reinforcing
I have seen specs include a red dye in the concrete where the ductbank has emergency power. And I have seen notes to provide reinforcement within the ductbank if it will be subject to heavy vehicular loading. Also possibly where the duct bank crosses dissimilar soil types.
2,000 psi concrete is adequate for most cases. Where heavily loaded, provide 3,000 and reinforce.