Seismic requirements for electrical plans
Seismic requirements for electrical plans
(OP)
We are going to start working on some projects in seismic areas. I am not clear what kinds of details are usually included on electrical plans in these situations.
In the past, in some cases we would require the contractor to hire a licensed structural engineer to do calculations for anchorage, bracing, and so forth. Nothing was shown on the plans, it was all submitted later. Now, I understand that those kinds of details are increasingly required on the actual plans. This isn't something I know much about.
What kinds of seismic details are other people providing on plans in seismic zones, or are you doing what we have done, and requiring the Contractor to hire a PE to do seismic detailing based on actual weights of installed items, pipe rack weights, etc?
In the past, in some cases we would require the contractor to hire a licensed structural engineer to do calculations for anchorage, bracing, and so forth. Nothing was shown on the plans, it was all submitted later. Now, I understand that those kinds of details are increasingly required on the actual plans. This isn't something I know much about.
What kinds of seismic details are other people providing on plans in seismic zones, or are you doing what we have done, and requiring the Contractor to hire a PE to do seismic detailing based on actual weights of installed items, pipe rack weights, etc?
SparksRfun
"The truth will set you free, but first it will make you madder than a wet bobcat"






RE: Seismic requirements for electrical plans
I remember one job our mechanical side got. Actually the price was quite low, BUT. Where ever the design engineer didn't bother to provide details and covered it by a disclaimer such as "Fit in the field", my boss would design and draft the special fittings needed. He would then send the design in for the engineer to sign off on. Then he would bill for the work as an extra including charges for designing and drafting. We made money on the contract and even more on the extras.
Actually that boss always did well on a job where the design engineer didn't do complete and professional work.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Seismic requirements for electrical plans
OK, this problem has been solved before. How do other electrical engineers handle seismic anchorage and bracing in seismic zones?
SparksRfun
"The truth will set you free, but first it will make you madder than a wet bobcat"
RE: Seismic requirements for electrical plans
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Seismic requirements for electrical plans
Alan
"The engineer's first problem in any design situation is to discover what the problem really is." Unk.
RE: Seismic requirements for electrical plans
Alan