[Tagging] how to map soft story/soft storey buildings properly?
dieterdreist at gmail.com
Mon Dec 17 10:32:59 UTC 2018
Am Mo., 17. Dez. 2018 um 00:43 Uhr schrieb Stefano Maffulli <
smaffulli at gmail.com>:
> On Sun, Dec 16, 2018 at 1:17 AM Martin Koppenhoefer <
> dieterdreist at gmail.com> wrote:
>> no, this clearly isn’t a suitable key because the soft story property
>> from what you wrote above is about a structural detail in some floors while
>> building structure is about the general structural system of a building or
>> part of it.
> "soft story" is actually an attribute of the whole building, not just one
> floor. It's a recognized classification of a structural characteristic of
yes, it is a structural detail (insufficient stiffening/strutting, if I
interpret it correctly), that's why it is not suitable as a value for
building:structure, as that key is about the structural system, not about
implementation details. I did not say it may or may not be tagged, I just
said the proposed key is not suitable.
> So far, building:soft_storey:y/n seems to be the least controversial way
> to tag these buildings. Any other thoughts?
the tag seems OK for what you intend to tag, one remaining problem could be
verifiability. Are there objective criteria, e.g. who defines the cutoff
where a building is still deemed sufficiently stiff, and when is it not? In
some building law, the required stiffness will depend on the risk zone for
earthquakes. Will the application of this tag depend on the jurisdiction?
Will we have to retag all buildings if the definitions change? Will we be
able to survey this, or does it require structural documentation and the
knowledge to evaluate it?
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