Yeah I should note I’m not civil so I’m not sure what safety factor they use. And also our 20% has a tendency to compound itself across estimations. It’s very similar to using four significant figures, where it’s a nice easy rule of thumb and you should know if you’re in a position where you can’t assume it. Safety being a situation where you always want to run it by a few other people for sanity checks.
I’ll also hazard a guess and say that a civil engineer would combine the dynamic load factor and the standard safety factor, because the standard safety factor is more for unknown variables and general fuckups like this one. Mind you that would leave you at building a rig for 30lb screens, so still not good.
And yeah we also have to deal a lot with cost-benefit analysis. While I’m sure buying more expensive motors isn’t cheap, y’all have the ability to say “this building can’t safely handle it”. Too much safety factor comes with increasing trade offs, especially in cost.
Yeah I should note I’m not civil so I’m not sure what safety factor they use. And also our 20% has a tendency to compound itself across estimations. It’s very similar to using four significant figures, where it’s a nice easy rule of thumb and you should know if you’re in a position where you can’t assume it. Safety being a situation where you always want to run it by a few other people for sanity checks.
I’ll also hazard a guess and say that a civil engineer would combine the dynamic load factor and the standard safety factor, because the standard safety factor is more for unknown variables and general fuckups like this one. Mind you that would leave you at building a rig for 30lb screens, so still not good.
And yeah we also have to deal a lot with cost-benefit analysis. While I’m sure buying more expensive motors isn’t cheap, y’all have the ability to say “this building can’t safely handle it”. Too much safety factor comes with increasing trade offs, especially in cost.