Toward the end, he suggests water dampers serve a dual purpose to meet fire codes (having a reservoir of water atop your building).
Does this create additional risk when firefighting operations draw it down?
i.e. Do the dampers contribute meaningfully to short term structural integrity of the building (particularly in gusty weather), or are they mainly just for comfort and materials longevity?
Has any building architected its liquid pool damper as a bonafide swimming pool?
I wonder if it would be possible to use it as an indoor swimming pool instead? People should get out when it starts damping least they get tossed around quite a bit, of course…
Cool video. I love the practical attempts at demos. Even if they don’t always work 100% it’s so much better than talking plus some semi relevant animations
I don't recall him mentioning how the viscosity of the fluid changes it's effectiveness, but I imagine it would. For reduced maintenance costs (prevent algae growth) they probably use mineral oil, not blue water.
Surely some biocide or glycol or whatever is going to be a lot cheaper than using mineral oil? This is solidly north of a hundred thousand gallons after all, right? Especially since they're already going to have plumbed water in the building anyway, so they wouldn't need to transport drums and drums of whatever liquid is chosen if it's not water?
300-400 tons of mineral oil is not expensive on industrial scales. And biocides are not as effective as you'd hope (look up biofilms for one particularly annoying example). So mineral oil is definitely a viable option. But its lower density means that water is probably going to win anyway.
That's a great idea. The Action Labs guy just demonstrated how some of those fluids can vary their viscosity in response to a magnetic field, used in some vehicle active suspensions. Similar application!
Toward the end, he suggests water dampers serve a dual purpose to meet fire codes (having a reservoir of water atop your building).
Does this create additional risk when firefighting operations draw it down?
i.e. Do the dampers contribute meaningfully to short term structural integrity of the building (particularly in gusty weather), or are they mainly just for comfort and materials longevity?
Has any building architected its liquid pool damper as a bonafide swimming pool?
The non liquid active tuned damper in Tapei 101 is a delight. Sprayed gold like a funky futurist nugget, set amongst massive hydraulic actuators.
I'm not sure you could make a liquid tuned damper be a tourist attraction.
I wonder if it would be possible to use it as an indoor swimming pool instead? People should get out when it starts damping least they get tossed around quite a bit, of course…
But they wouldn't get tossed around, that's the whole point? (Unless they are close to the pool boundary.)
Cool video. I love the practical attempts at demos. Even if they don’t always work 100% it’s so much better than talking plus some semi relevant animations
Grady loves his models.
I don't recall him mentioning how the viscosity of the fluid changes it's effectiveness, but I imagine it would. For reduced maintenance costs (prevent algae growth) they probably use mineral oil, not blue water.
Surely some biocide or glycol or whatever is going to be a lot cheaper than using mineral oil? This is solidly north of a hundred thousand gallons after all, right? Especially since they're already going to have plumbed water in the building anyway, so they wouldn't need to transport drums and drums of whatever liquid is chosen if it's not water?
300-400 tons of mineral oil is not expensive on industrial scales. And biocides are not as effective as you'd hope (look up biofilms for one particularly annoying example). So mineral oil is definitely a viable option. But its lower density means that water is probably going to win anyway.
They want something that isn't a fire hazzard. And water can be connetted to the fire control system thus serving an additional purpose.
Fill it with electro-ferric shock fluid
That's a great idea. The Action Labs guy just demonstrated how some of those fluids can vary their viscosity in response to a magnetic field, used in some vehicle active suspensions. Similar application!