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Re: roto-hammers, masonry & city of LA

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>I worked on a seismic upgrade of a wood framed, concrete shear wall building
>that was later turned into a dance club. The Owner of the adjacent URM
>building protested the nightclub on the basis that the dance music caused
>vibrations that were weakening his URM building. The URM owner hired both a
>structural and acoustic engineer.  Regards,
>Jeff Smith

>The whole thing sounds frivolous (sounds like bad neighbors, mostly) but 
>at the same time, rather interesting. Do you know anything of the 
>findings of the URM building owner's structural and acoustic engineers 
>Bob Shilling, SE             Berkeley, CA          shilling(--nospam--at)

>I don't think I would allow any sort of occupancy of a structure that
>couldn't be trusted to
>withstand the operation of a Roto-Hammer or occasional dancing.
>Pat Quinn
>Henderson, Nevada

One lingering concern:
Just what test music did the dance hall play when those engineers were
running their tests next door? 
 "Good Vibrations" ?

C.O. Greenlaw, SE       Sacramento CA