[rescue] Q: moving medium heavy things

[rescue at sunhelp.org]

on 7/10/02 11:11 PM, Kevin Loch at kloch at gurunet.net wrote:

> Leslie Connally wrote:
> 
>>> run 2 heavy boards under the strongest+tallest racked device and jack it up
>>> with 4 automotive scissor jacks and blocking as needed.
>> 
>> Now I'm wondering how much weight a warehouse roof truss will support?
>> block & tackle...  hmm..  1/4 across 50' span?  hmmm
>> 
> 
> No, don't go there.  I know some sound guys that
> bent  warehouse roof truss that way.   It looks alot stronger
> than it is.  I'm surprised it can hold up snow.

The Alcoa plant around here built some big warehouse next to their plant,
then the weekend before it opened it snowed and the entire thing collapsed.
Those things are *weak*.

-- 
Thanks,
Torquil MacCorkle, III
Lexington, Virginia