Design for seismic/ windload - vessel empty of full?
Design for seismic/ windload - vessel empty of full?
(OP)
I would like clarification on the design of vertical vessel skirt, basering and anchor bolts when considering seismic/ wind load. My question is: shall they be designed assuming the vessel is full or empty? Which is the more conservative?
I was told that if designed assuming the vessel is full, the weight would act as moment that counteracts the moment caused by the wind. Thus, designing for empty vessel is the worst case scenario that should be considered.
However, PV Elite shows higher area of anchor bolt and thicker basering are required when the vessel is full compared to when it's empty.
Please explain.
Thank you in advance.





RE: Design for seismic/ windload - vessel empty of full?
Usually, controlling case will be wind/empty and seismic/full for anchorage and foundation overturning and wind/full and seismic/full for maximum bearing check.
Often not clearly stated is that contents that are considered in seismic forces are also considered in seismic overturn resistance.
Running all the numbers manually might be enlightening.
RE: Design for seismic/ windload - vessel empty of full?
RE: Design for seismic/ windload - vessel empty of full?
RE: Design for seismic/ windload - vessel empty of full?
RE: Design for seismic/ windload - vessel empty of full?