Comments on: New Bridge design – 553lb (695 efficiency)

By: Yoyo23man

Yoyo23man — Wed, 21 Sep 2011 14:33:00 +0000

how long did it hold

By: Jason

Jason — Wed, 31 Aug 2011 08:04:00 +0000

wow

By: Sasyk

Sasyk — Fri, 20 May 2011 21:49:00 +0000

How many popsicles did you use?

By: jeff bridges

jeff bridges — Wed, 03 Nov 2010 22:53:25 +0000

how many sticks did you use?

By: mizley

mizley — Wed, 08 Sep 2010 14:33:00 +0000

wats efficiency?

By: mizley

mizley — Wed, 08 Sep 2010 14:31:24 +0000

how many popsicle sticks did u use?

By: Frank

Frank — Thu, 27 May 2010 13:50:22 +0000

they most likely used clear or white glue, because hot glue isnt that strong of a hold.

By: Pedro

Pedro — Fri, 21 May 2010 17:04:24 +0000

what kind of glue you used? white glue or hot glue

By: yo mama

yo mama — Mon, 26 Apr 2010 16:52:34 +0000

Can this bridge be reduced yet still hold around 300lbs?

By: AndrewL

AndrewL — Thu, 01 Apr 2010 21:40:01 +0000

I agree that there are better ways to test the bridge (winding cable instead of loading up paving blocks). However, in this design the “cars and people” deck is the top of the bridge.

In a bridge building competition, the rules will (or should) define exactly how the bridge will be tested. You then design the bridge around that particular test.

Rightly or wrongly, the rules for this bridge design specified that it would be loaded from a central point using a 1″ square steel tube. The bridge design was optimised to support a single central load.

Had the load been applied at an off-centre load point or in some other manner than a point load, the bridge would likely have failed sooner.