Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 5 of 5

Thread: Tandem crane collapse while lifting bridge section on barge - videos

  1. #1
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    26,365
    Thanks
    8,085
    Thanked 40,133 Times in 11,738 Posts

    Tandem crane collapse while lifting bridge section on barge - videos


    186 More Best Homemade Tools eBook

  2. The Following 4 Users Say Thank You to Jon For This Useful Post:

    baja (Jun 9, 2019), KustomsbyKent (Jun 10, 2019), Scotsman Hosie (Jun 10, 2019), Seedtick (Jun 8, 2019)

  3. #2
    Supporting Member jdurand's Avatar
    Join Date
    May 2019
    Location
    Krasnodar Krai, Russian Federation
    Posts
    1,467
    Thanks
    127
    Thanked 766 Times in 425 Posts

    jdurand's Tools
    People never learn. Barge tippy, do not lift off center unless you can swim.

    2,000+ Tool Plans

  4. The Following User Says Thank You to jdurand For This Useful Post:

    Scotsman Hosie (Jun 10, 2019)

  5. #3
    Supporting Member Dragonhand's Avatar
    Join Date
    Oct 2013
    Posts
    67
    Thanks
    266
    Thanked 29 Times in 18 Posts

    Dragonhand's Tools
    I love the carefree music in the background!

  6. #4
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    11,619
    Thanks
    2,176
    Thanked 9,112 Times in 4,361 Posts

    Frank S's Tools
    As it appears neither crane was secured to the barge floor. Once there was a sudden shift in the load this caused the crane to slide on its pads or the pads slid on the barge either way the outcome was unavoidable at that point. Reversing the rotation of the crane to try and return the pick back to its support frame would have caused the outrigger to slide even more. the crane would have still fell off the barge a semi rapid lowering of the pick to make contact with the barge was the only possible way to hopefully halt the crane toppling but that would have been risky as well as the pick could have crashed into the boom again causing the fail. The only way this could have been prevented was to have anchored the cranes securely to the bitts on the barges then make the pick in super slow motion mode keeping it as close to the barge floor as possible while keeping the booms retracted as short as possible. Also note they had pumps sitting on the barge floor to transfer ballast it is possible these pumps were unable to keep up with the shifting of the load due to their trying to speed the pick. There is a lot of truth to the saying slow is fast, but fast is slow and often expensive.
    Never try to tell me it can't be done
    When I have to paint I use KBS products

  7. The Following User Says Thank You to Frank S For This Useful Post:

    Scotsman Hosie (Jun 10, 2019)

  8. #5
    Unkle Fuzzy's Avatar
    Join Date
    Mar 2017
    Location
    Near Monkeytown, USA
    Posts
    149
    Thanks
    1
    Thanked 91 Times in 51 Posts
    Should have had stabilizer legs on the barges.



    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •