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  • Users: dold
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  1. dold

    Chairlift Detachment - Attitash Mountain Resort, NH, USA

    https://unofficialnetworks.com/2025/02/03/details-emerge-attitash-chairlift-detachment/ https://liftblog.com/2025/02/02/chair-falls-from-lift-at-attitash/ More of a maintenance and inspection failure, but interesting photo of the failed part. I'd be interested to hear some of the materials /...
  2. dold

    Browser tab icon

    I started this post to ask the admins to reintroduce the old Eng-Tips "E" logo that appears in your browser's bookmarks list and tab. Then I was playing around with the style chooser and if you change it to "Eng Tips" style, the little icon appears as it used to, instead of the default/generic...
  3. dold

    Parking Garage Concrete Column Failure - Ontario Canada

    This is a crosspost from r/StructuralEngineering on Reddit. Link to reddit post Link to follow up post from reddit OP Link to photos (also posted below) Looks like reddit OP made a subreddit for this which includes more photos. Photo credit goes to Reddit user u/One-Truth-5867 According...
  4. dold

    NYC Parking Garage Collapse

    https://abc7ny.com/parking-garage-collapse-financial-district-lower-manhattan-ann-street/13150286/ https://nypost.com/2023/04/18/parking-garage-collapses-in-nycs-financial-district-video/ Ring camera video from inside. Not much to see though. Looks like it was a rather old masonry and reinf...
  5. dold

    Partial building collapse during construction - Welland, Ontario

    https://canada.constructconnect.com/dcn/news/projects/2023/02/welland-luxury-condo-project-partially-collapses Youtube video with ring camera video of collapse
  6. dold

    Flexible wood diaphragm design feature

    RFL / R3D x.0.4 update has added back flexible wood diaphragm design and detail reports for same. Nice feature. how about over here, out of the way?
  7. dold

    Handy reference for wood fastener design

    For those who deal with wood design and connections often, this ICC-ESR is a great reference for all sorts of fastener design values - primarily nails and staples. It's nothing new, but there's tons of info condensed into a single document. ICC-ESR-1539
  8. dold

    Two UH-60 Blackhawks Crash Near Salt Lake City, UT

    This is up the street from my house so I figured I'd post it. Two blackhawks were on a training exercise on the back side of a ski resort (Snowbird). Not sure exactly what their mission was. They were in formation coming in for a landing. They appeared to be stationary and descending, maybe...
  9. dold

    3D v19, Floor v15 released

    Downloads available from the website. Floor<>3D integration implemented once again.
  10. dold

    Mezzanine Lateral System - Interesting System in Existing Building

    Hi all, I'm working on an upfit project where we're demoing about 2/3 of an existing storage mezzanine in a retail store. Mezz is horseshoe/U shaped and wraps around the perimeter (3 sides) of the store (see pic below - columns exaggerated). Rough dimensions are 20ft in width around the...
  11. dold

    Three-Sided (U-shaped) Rooftop Screen

    I have a 3-sided prefab roof screen to accompany new RTUs (see attached pdf sketch) which will replace existing RTUs Haven't been able to find any threads about this particular situation - some similar questions about shielding, but I think this warrants a new thread.. How does the wind act...

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