What the hell is this truss?

[gafftapegreenia]

A few well placed sand bags can help to greatly reduce the risk of stands tipping over.

 

[DJHiggumz]

I wasn't worried about it tipping, but the pipe kinking in half from someone leaning on it or something

 

[MPowers]

.....but the load rating, which if you are curious, for a 40 ft span it is 450lbs center point load. the outer tubes are 1'' and it is 14'' wide............

FWIW, Total Structures light duty triangle truss with 2" o.d. main tubing, lists the allowable center point load on a 40' span at 146# with a 1.5" deflection. I would be suspicious about the 450# load rating you state. If you can't find a label or name, where did the load rating come from?

 

[DJHiggumz]

No it was actually 250 haha I read it wrong, that is the 18" version.

 

[DuckJordan]

We have some of this truss going through once in a while, 250lbs is not the load limit at a 20ft span. We load tested another set (results vary, nothing exact with load testing using our setup but it does give a ballpark) at 350lbs the truss welds broke and the pipes bent. applying a 5:1 rule gives you 70lbs over 20 ft. So for DJ purposes a few lights spread out over the span, a banner or two would be just fine, just don't hang speakers or large movers through out the thing. Those stands are also only rated to hold 125lbs (including truss weight). But again you are solely on the chopping block if anything happens with the truss. So yes while your insurance will cover a bit of the cost. You will take all of the court issues and you will have to try and prove you did not know that you couldn't put that much weight on, or that it wasn't it working condition at the time of an accident. Likely your insurance will back out and claim that since it wasn't a true accident that they aren't on the line. If you get truss from a manufacture who lists and has the scientific load specs done you have a little more weight behind you should random freak accidents occur.