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Pulling a long bridge beam...FAIL..!


jdfordhd
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If someone has already posted this, I apologize. If the link does not show it is because I cannot copy and paste on this forum. Search "truck carrying huge beam". I think the escort controls (wirelessly) the steerable dolly. The truck driver controls the throttle and his rear view mirrors. Looks like enough blame to go around. Dolly hits cushion rails at the end of the row of Jersey barriers. BOOM..!!

http://youtu.be/7dQYbCaxZPA

Edited by jdfordhd

"If it ain't got a motor, I ain't interested.!!"

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I saw that this morning. On another note they hauling in the bridge beams for the Pearl Harbor Bridge (Q-bridge) in New Haven and some are coming on regular dollies and some on triaxle truck frames. Interesting to see. Regular frames with rearends on hendrickson suspension.

Matt

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Slpwlkr, the dolly is definitely steerable. You can see the hydraulic cylinder that does it. The sun is gleaming off the rod on the cylinder. The oversize load sign is draped around the pony motor box. The dolly was steered to the right to make the left turn and had not fully repositioned to straight forward.

Edited by jdfordhd

"If it ain't got a motor, I ain't interested.!!"

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Maybe it was but it definetly wasn't in steer mode. It never turned from what I can see. They only steer them when they need them. Friend of mine has 1 and he never steers unless they need it

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Doesn't it look like it hits the curb on the pass side? You see it just in front of the dolly then out the back side. He might have seen it just as it hit and was going for the brakes?

You have to look close. The bridge is under repair. The construction crews have lined both sides of the traffic lanes with concrete "jersey" barriers. This gives them the protection they need to work on the bridge. This has reduced the width of the highway to traffic lanes only, no shoulder. By federal construction guidelines, the "jersey" barriers must be accompanied by energy absorbing crash cushions (called impact attenuators) at their ends. The cushions are visible, left and right. Watch the truck tires line up on the center line going straight ahead. At the same time the right side dolly wheels settle in straddling the shoulder white stripe. Someone was asleep at the controls..! The dolly tires then strike the crash cushion. The cushion performs exactly as intended as it "accordions" to a fourth of its original length. What appears to be a curb, after the crash, are the rails that guide the collapsing components of the crash cushion. There ya go..!!

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"If it ain't got a motor, I ain't interested.!!"

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Maybe it was but it definetly wasn't in steer mode. It never turned from what I can see. They only steer them when they need them. Friend of mine has 1 and he never steers unless they need it

Yes sleepwalker is correct you only steer the dolly in when needed if not it stays locked.

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We use triaxle 45 ft flats and put a set of tandems also under coming up with 5 axle trailer with 3 axle tractors 2DM-600 duplex 250 hp 2DM-800 350 Cummings 6 speed to move 62+ tons concrete eye beams and 3/4 cable from bolster plate to the king pin over 90 plus feet beams and did over 96 moves with 1/2 inch chains and binders no problemo !

Ed

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I was pulling a bridge girder on a dolly once and when I went south on rt.29 in Lynchburg the dolly driver decided to take 501 north for reasons unknown. He got it off the road halfway into the grass.......

After viewing the video otherdog, was I close in my assessment of what happened? I've never pulled 'em, but I've lifted a hundred of 'em over the years with my cranes. Watched the steerables in lots of nasty situations.!!

"If it ain't got a motor, I ain't interested.!!"

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