Hello everyone, I have an equipment pad with embedded posts that are subject to impact from vehicles. I have always multiplied the "vehicle barrier load" per ASCE 7 by the 1.6 live load factor, but the equipment pad is also now subject to overturning and sliding under this load. I am unsure of what load combination would be most appropriate to use under this loading scenario. For reference, the pads are ~20'x~5'x12" so they are quite large. I do not believe the 1.2D+1.6L load combo is appropriate since that amplifies the dead (resisting) load. Currently my thought is to compare the 1.6L to 0.9D but that seems overly conservative to me since I know the equipment and the weight of the pad will be there during impact.
ETA: I am also not sure whether the D+L combo allowable combo is appropriate since I don't see "impact" as an "allowable" level load due to the uncertainty of it, but overturning and sliding are not strength level checks. Appreciate any thoughts. Thanks.
ETA: I am also not sure whether the D+L combo allowable combo is appropriate since I don't see "impact" as an "allowable" level load due to the uncertainty of it, but overturning and sliding are not strength level checks. Appreciate any thoughts. Thanks.
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