Tuesday, February 20, 2018

Tandem (or more) Crane Lifts

The "cranes in action" post is getting rather large, so I'm going to start this one for tandem (or more) lifts.

(Update: see constructing offshore platforms for several more multi-crane lifts. A world record lift was done to build the observation wheel in Dubai.)
 
LiebherrConstruction posted
At breathtaking heights, two of our LR 11350 crawler cranes installed a newly developed wind turbine on the wind turbine test field at Østerild in the north of Denmark.
Read more about the operation here: https://bit.ly/3QiEuVk

Tim R Hansford posted six photos of a lift from a barge to two dollies for road transport. His comment:
Starting the week off with a heavy tandem pick...
2) 2250 Ser. 3
170' & 172 ton.
#BigHope1Read more about the Pink Barge by following the link below.
http://www.ceresbarge.com/…/index.php/ceres-barge-big-hope-1

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Jose Maria Mucchiutti posted
Lynn Johnson Are those 4100’s or 4600’s?
Riley Anderson Lynn Johnson 4600 ringers. 4100 tailing it up.
Lynn Johnson I thought so....looked like big 60rings. Also looks like full fledged 4600 ringers with 65 or 63 boom. Thank you.

Andrew Harrower posted
Bruce Stratton: Did a 4 crane pick one time, not much weight but was different
 
Jim Lamanno posted
Fox Chase line just north of Newtown Junction. Installing the bridge over the tracks for Olney Ave (1930). This was during the grade separation project where the RDG agreed to eliminate all grade crossings within the Philadelphia city limits.  Love the equipment on the tracks and the freight cars at Heintz manufacturing company.
John L Barcia shared
[Why not take advantage of using two cranes and have them hook equidistant off-center. Instead, they went out of their way to require that the center attachment be precise so that the beam would be balanced.]

Beard Mason posted six photos with the comment: "The mighty 888 tracking down to meet up with mlc165 for a some tandem picks."
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Jesse Leight posted a couple of photos that explains a video he also posted.

1   Estimated weight was around 15 million pounds..... Give or take... Used the twin 18000's to give her just a lil tilt and let gravity do the rest..... 
2, cropped    2 18000's do the main lift and a 16000 is the staging crane



Dean McCartney shared
[I finally noticed the foundation with the bolts on the left side of the picture. So they are going to tilt it up, then swing it between them to place it over the foundation. It looks like the one in the foreground is going to have to travel as well as swing.]
posted
Double team
Jerry Evans posted
[Abraham Lincoln bridge in Louisville, KY. Rebar cages are not strong so the rigging has to support them in many places. Note that each "junction" is a pully so  the cables can move to adjust to the angle of the cage as it is lifted.]
Mammoet South posted six photos with the comment: "M16000"

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Morley Coote commented on the above posting
[This is the picture that made me realize the rigging used pulleys. Note that each crane is controlling two lines (blocks). The middle blocks, in turn, have pulleys so that even more lines can be attached to the rebar cage.]
Chris Munson posted two photos with the comment: "Old bridge coming out and new one going in!"
Fred BainGroup Admin Tandem lift, very tricky. Good job

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Mark Gillings commented on Chris' posting
Here is one from my end
Reuse Sell posted
Shifting of Copper Dam
Broc Sherwood posted
Glenn McLaren First one was about 250k. Second one that is being lifted is about 170k.
[There were quite a few comments, but no one mentioned where the bridge is being built.]
Glenn McLaren commented on Broc's posting
David Jordan posted
Wind turbine towers were being unloaded at TZPR's East Peoria Yard this afternoon, February 27, 2018. Eighteeen loaded flat cars can be seen on a track which I believe is called "B-19." A number of towers have already been unloaded.
[It looks like a tandem walk as well as lift.]
Butch Gray posted
Couple of Groves getting it done
Wayne Clayton Mangrum commented on a posting
This is one of the first 793s we got at Shannon mine
Arthur Overdijk posted
2x Demag TC 3000 and a TC 2000
[It is a tandem lift of the high end. Having a smaller crane for a tailing crane when lifting a column upright is standard practice.]
Basil Whitey Walker posted three photos with the comment: "Working the docks in Houston 4100w everywhere."
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Thomas Hoyt posted two photos with the comment: "Tandem 2250 pick n carry."

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Brandon L Grace posted
Our Bucyrus 30B with our P&H 600XL in the back ground.
Dennis DeBruler I presume this is in a museum. What and where is the museum?
[Antiques lifting an antique.]
Brandon L Grace No. No museum
Dennis DeBruler Interesting. Then you take good care of your equipment. The caboose must be a static display somewhere.
Dennis DeBruler Wait, what would be the date of this photo?
Brandon L Grace Dennis DeBruler like 1980-1986
Kenny Rutland posted
And Go....
Unlike must tandem lifts, this one is not symmetric. One 18000 is using a stringer to lift two of the legs whereas the other is lifting just one leg.
Ulises Lara Torres posted
Ben StalveyBen and 4 others manage the membership, moderators, settings, and posts for Manitowoc Crane Enthusiasts. sweet 18000 with maxers
Damian Crowley posted two photos with the comment: "4600 and a 4100 in the back setting girders on the Bonner Bridge project. North Carolina USA."

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Travis Lewark commented on Damian's posting
Bryan Metzler Sr. commented on a posting
2 550s setting bridge beams.

Brenton Kimble commented on a posting
X2 2250

Port of Milwaukee posted
Port Milwaukee cranes perform a dual lift of a windblade mould off of Fednav's scheduled Falline vessel Federal Saguenay in Port this week!
[Note the elevated cabs on the cranes so that the operators can more easily see what is happening on the deck of the ships.]
Ben Stalvey shared a couple of photos. A lot of comments react to what even I know of as wrong rigging --- they are using the tie-down eyes. Those eyes are to be used for chains when transporting on a trailer and for pulling when stuck. The outriggers are supposed to be extended about a foot and then the rigging wrapped around them.    So the right crane slewed first and then the left one to turn the load 90-degrees and set it down between them.

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Terrell Simpson posted
Twin 2250’s doing tandem lifts for a new overpass!!!
[It looks like the left crane is lifting more than its fair share. The comments indicate Orlando.]
Nick Spinning commented on a posting
[18000 Maxer with the wheeled counterweight wagons. I assume the others are "just" 18000s.  Actually, a quadruple lift because there is a tandem lift at each end! ]
One of several tandem lift photos in 30 photos posted by Waseem Hendricks
M16000 . M21000 . Hanging maxer


Screenshot
Blane Tidwell posted
Last piece of steel set on Rockland side [for the Tappan Zee Bridge].  #TAPPANZEEBRIDGENEWYORK
Ken Cook posted
Middlesbrough Dock.
MikeandKellie Glaze couldn't be any more short sticked,unless their going to put it back where it came from they are going to have to walk with it.
Hans van Vliet Or they lifted it from a barge and put it on a sea going vessel for the rest of the journey. Not uncommon in Dutch harbours. Mostly with a sheerleg but also with mobiles.
Matthew Mackay posted
Lampson album
John Smith posted three photos with the comment: "550 Grove with mega wing and 500 passing a girder over Tieton river near Naches Wa. Girder was 200 ft and 220k."
Jim Browne What type of girder is that? Never seen that section before.
John Smith WF 84. 84 " tall and 4'-1" top flange. Common here in Washington state.


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Meh Deh posted three photos with the comment: "Manitowoc 3900 Twin."


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Tony Snoke posted
Winter is coming
Perry Silver That’s a lot a stick in the air.
Tony Snoke 370 ft
Laurent Gagnon Two bagged out all terrains to change out a blade. Haha.
Tony Snoke This was a bearing change. Every time we have exchanged blades or did bearing change we have used two 550’s.
Kenneth Ohl Corey Gerber some types of blades have to be put on one at a time because they won’t take the stress of being picked up on the hub. When you put the blades on the hub on the ground you lift the hub and blades with the primary crane. You tail one of the blades with a second crane. When you pick up on the main crane one blade is taking a great deal of weight. Some manufacturers blades can’t handle this. Also it takes a bigger crane to set the hub with the blades on it.
Corey Gerber Kenneth Ohl and maybe you should stick to playing with the RT on the jobs. It takes less crane to lift the assembled hub then the nacelle
Kenneth Ohl Some windfarms they use different size rigs for different aspects of the job. One crane sets the lower and lower mid. Another crane sets the upper mid and spike. Then it sets the nacelle. Sometimes it sets the blades and other times moves on to the next turbine. Then a smaller crane sets the hub and blades. Dont give up your day job Corey.
[They can get a way with such a long jib because the boom is almost straight up. That is, they are lifting the blade with a small radius. Lots of comments about weather or not you should get one more expensive crane to avoid tandem picks. And some photos of single and tandem blade picks.]
John W. Coke posted
World’s largest Ferris wheel in Dubai.
Bay Crane posted
300,000 lbs gantry beam hoisted with 2x Liebherr LR 1200 and walked into position
Al Roskam posted
Ben StalveyBen and 4 others manage the membership, moderators, settings, and posts for Manitowoc Crane Enthusiasts. 4100 series 2 and 2250William Fitzgerald Dangerous pick Spread 4 point pick with two cranes. 
Uneven hoisting overloads rigging really fast.
Lou Adler 2 4 points don’t always work well ...if you get the weight off could snap rigging...
Just be safe folks....
Al Roskam Rigging was close to double of what was needed.Jim Browne Doesn't matter if its two cranes with 4 point pick.

Each crane is independent with its own rigging. 


4 point rigging each point should be rated at half the load. With a typical 4 point lift 80% of the load is in two diagonal legs, 15% in the third for stabilization, and 5% or less in the fourth leg along for the ride.


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(new window)  "TDOT is currently using Accelerated Bridge Construction (ABC) to repair or replace four bridges along I-240, east of Memphis, in a project known as MemFix 4. This time-lapse features work completed between 8pm Friday, August 17, and 6am Monday, August 20, on westbound Poplar Avenue bridge over I-240."


A video of tandem lifts very little vertical clerance. Being able to move the boom in and out while under load is critical to this operation.

A time-lapse video "of the bridge beam job I’m on. Two AC700 demag’s getting it done!"

Screenshot @ -3:05
A video of lifting a locomotive back on its tracks. It took me a while to realize that they are lifting a locomotive behind the one we see on its side. Judging from the counterweight stack and the boom bracing, the first hydro has a large lifting capacity. Give the position of the cranes, it needs a longer radius than the other one.

Gilbert Dionne posted
This morning [11/11/2018],orlando fl
Dale Mccormick posted
Lifting a drill head for a off shore rig at the port in Texas
Ben StalveyBen and 4 others manage the membership, moderators, settings, and posts for Manitowoc Crane Enthusiasts. Look at the little 2250
John Boevers Heavy Lifting Device. 15,000,000 capacity.
Ross Rodger It’s lifted that high so that they can float the semi-submersible underneath it. That’s part of the rig topside Dale. It will be out off shot. Ingleside texas


Peter Jeffries posted

(Satellite)

Harish Mukundan, Oct 2015

Kiewit Offshore Services, Sep 2013

Kiewit Offshore Services, Sep 2013
Dennis DeBruler commented on Peter's post

Jim Kratzer commented on Dale's posting
Jim Kratzer Here’s some small platforms sitting about 10 miles away
Jim Kratzer commented on Dale's posting, cropped
The pickup in the middle of this photo is parked over 100 feet away from that rig behind it. Just some visual reference.
Justin Johnson posted
Putting in some work today
Nick Gerard Phoenix job.
[I hate it when they don't provide the model numbers. That is a lot of counterweights setting on the yellow one.]
Brandon Wayne posted
[This is the first time I have seen a tandem lift of a blade. And how do you see what you are doing if the clouds are below the hub?]
Clyde Chevalier posted
Worked this pair of Triple 9's in Ohio, used the whip line to rotate the tanks upright then walked them ahead to the piers
[There were quite a few comments about the rigging, but I don't understand them.]
Branden Kuck posted
2250s setting conveyer section. Lighting came out good so figured I would share. Local #49
Gerald Duysen Is this at Coal Creek Station?
Branden Kuck Gerald Duysen yes sir it is


Scott Bourge posted
Gulf Island fab
[If two is good, then six is even better? It is better lifting capacity, but it is more of a coordination problem. It looks like they are rolling it from horizontal to vertical and lifting it so that many-axle mover can drive underneath it.]
Fritz Ryznar Can you imagine doing this back in the day when we didn't have scales and computers!David Waller Very common back then.Fritz Ryznar David Waller , yup, just sayin kids are spoiled these days

Jimmy Wayne Cofield added three photos with comments to Scott's posting and observed: "Cool looking but a lot of engineering overkill. We've done many ourselves. Two GMK7550 Grove's & a 888 in the middle anchoring the hull as we roll them over."

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Bob Dahringer posted some photos with the comment:
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Aaron Payne posted three photos with the comment: "Detroit MI     Blast Furnace Scrubber."
This is just a lift from a barge to a storage area. To actually lift it vertically and set it in place, one of the cranes would be a lot larger.
Dennis DeBruler It is good to know that there is still at least one blast furnace left in Detroit.
Aaron Payne 2 in Detroit and 1 we built from the ground up 2008 in Dearborn. The old Rouge Steel 2 miles from Zug.
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Mikey Bissett posted two photos with the comment: "Jacket lift nigg Scotland & jacket under construction McDermott ardersier Scotland no date sorry."

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Carlos A Garcia Sr. posted two photos with the comment: "Missing the old days 1800 tons 10 crane lift and carry."
Hartley Bergeron Trent Lofton I’ve made 16-18 crane lifts. All done by radio. With spotters to ensure everything and everyone is level. Setting decks like these pictures and setting tops of jackets. Weight indicator has to work properly. I remember the days of an old Martin Decker !!
Michael Tregre Everything needs to be set up. Mats ect. Radios. Pick and walk and set. Cranes weren't big enough to handle loads back then like today. We talking 35 to 40 yrs ago.
Derek Raymond This was a whole different era, the cranes were at max capacity.As long as the track was flat we went with it and yes you had to watch out for your brother operator on these lifts.

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Thomas Goralczyk answered the question "What is it?" with "Guessing a deck for an offshore platform. Similar to this lift."
Thomas Goralczyk commented on Carlos' post
That was definitely a fun job, did a few big multi crane lifts this past summer.
Thomas Goralczyk commented on Carlos' post
Here's what a lift plan looks like.
Thomas Goralczyk Trent Lofton we went up to 18 cranes for one lift on this job, it was an off shore production platform for natural gas.
Hartley Bergeron commented on Carlos' post, cropped
We had an old school engineer who knew how to tell what crane needed to be where to bare what weight. Then you have the weight indicator on each crane to aid you to
Keep you at your weight. People off in the distance to ensure that it was lifted level. We used to points of the compass as a judge. Say they would all stop us. Every crane operator ensured we had our weight. Then they’ll say the north side is low. Or southwest corner is low. Etc. we’d get level then go higher. It was a lil hairy sometimes. But we did it.
Jim Browne commented on Carlos' post
One of the classics
Harry Hudsack posted three photos with the comment: "BIG MOVES.."

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James Terry posted
New England Erecting Co. uses 2 truck & a crawler crane (a Link-Belt, a Bay City and a Manitowoc) to set steel beams on the construction of the John F. Fitzgearld Express Way in Boston, MA. July 1954. (Paul Joyce collection). Thanks Ray Darling. Repost from another group
Reuben Zimmer Bay city cranes was purchased by Manitowoc late 60’s or early 70’s
Bill Hough That Manitowoc looks like a 2000
J. Mike Poupore Maybe 3000 (50 ton)?The boom looks to heavy for a 2000, plus the load distribution of the three cranes it doesn’t seem that a 2000 (25 ton) would carry most of the load.Lynn Spriggs Talk about crane operators!
Ryan Weinkauf Those guys on the left, what are their blocks distance apart do you think? Maybe 5-10 ft. Truly amazing.
A quad-pick of a beam for I-4 in Orlando, FL  (source)
Jose Moran Jr. posted
21000, 400 tons
John Schilberg What does that team look like? What's the org chart look like for a lift like that? Leaders, observers, operators, telemetry analyzers???Ray Little Impressive lift. I imagine the lift required a longer reach than one crane could handle, one end to come in different from the other or rigging too wide or tall for a single crane lift. I say this because 400 tons isn’t all that much for a 21000 in Maxer.Rod Walters Ray Little you are so correct, but when you need to bring one end down or rotate a bit and a tag line or come-a-long just want do it two cranes will.Ray Little Rod Walters that’s exactly what I meant in my explanation. Good to hear from you again Rodney!
Jose commented on his post
Jose provided a video as a comment, but I can't get a valid URL for it.
[But I didn't see the load move. I took screenshots at the beginning and end to compare. This is the end screenshot because it has some workers to provide scale.]

Screenshot @ -0:05
[This video makes you appreciate that multiple crane lifts can go really bad.]
John Smith posted three photos with the comments: "Grove 7550 and Demag 450 setting girder in Sumner Wa. 200 ft 252K" and "here are some pics of truck and steer trailers. Rigging is 2-1/2" sling with rolling block."
[It appears they built a temporary bridge next to the one being built for the truck and beam so the two cranes just had to swing it a little bit from one side to the other.]
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Screenshot
Screenshot
[They are "walking" that big pipe.]

Matt Wolfe posted two photos with the comment: "3 crane pick and roll this morning. 777 888 and mlc 100 under power lines and over the road."
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Uwe Scharfe posted, cropped
1993 The good old days working for WWM great team my Singapore guys on this project and many others with me.

Ekbal Abdullah posted
Get this photos from other side group. A Dozen of manitowoc in 1 lift.
[Actually, "just" nine cranes.]
Rodney Thibodeaux 4000s one 3950 that's the blue crane I was on that lift in the crane with white tip that was around the early 80s reason for that many cranes is because of flex in deck and when setting in place you may have to lift a certain area to clear something out the way this pick was from the ground and we walked over.
Rodney Thibodeaux This was taken in houma, la,in delta fabrication yard which is no longer in Business the yard is now gulf island fabrication was there since the beginning retired now.
Rodney Thibodeaux We had bigger platform decks that ,we had some with 12 4000s and 2 4100s.
Hartley Bergeron Rodney Thibodeaux (tracker). After you left the decks got bigger and taller. 16 crane lifts were the norm. 8 triple 8’s. 2 M 250’s 4 2250 2 with and 2 without Maxer attachments. @
2 999’s. Higher. Taller. And bigger. Then the bottom fell out now nothing. They build boats. Imagine that. Boats. 20+years I had with them. Left and went overseas. Learned a lot from Rigger man. And everyone else. People today have no idea the lifts we made.....
Rodney Thibodeaux Notice you'll talking about mats ,we didn't need mats in this yard, we put 3 feet of layer limestone of different sizes, with mating sawed together under the stone, we put them cranes on the toes wouldn't sink now on our other fab yard that across the channel, which would be on left of picture has the same amount of stone and you need mats most places.

Mick Halligan posted
Photo taken from ‘Cranes Of Our Lives’ Facebook page.
“No idea what they are lifting but apparently this is a world record in 1984
Photo credit -Herschel Sinclair”
Vincent DeAcetis J Patrick Wood look at the direction of all the tracks. They are either installing or removing.
Ray Sample Floating a deck section. Did many of them back in the day in Louisiana Fabrication Yards. I’m reasonably sure this was in Houma La and I worked that yard some years later.
PS look where the balls are. In the sheaves.
Rodney Thibodeaux Ray Sample that was taken before gulf island, it was delta fabrication, two wheeler Big Al were on that lift. I'm the one that posted that a while back,, I got that photo from Steve melonas,
Alan Hall In my 25 years of ironwork 6 cranes pick is most. This is really kool.

Dusty Maxey Must be heavy...got them whiplines up snug. [Unfortunately, I don't know what a whipline is.]
Ray Sample Dusty Maxey protecting those lacing in the jibs. Those boom angles were maxed to the stops.

Ray Sample I as on one at McDermott with 34 cranes. From dirt to straight up non stop. 3280 tons. One of my more accomplished feats as a operator.
Johnny Charles Gros Ray Sample That was boxer jacket roll up. Was on that one inside the vent. Then on bottom leg to lift up.
Ray Sample Johnny Charles Gros me too. I was in the vent then hooked on the end of leg with Charlie Morvant. We pulled 210 tons on a new 4 “ sling. Watch the grease drip.

Jim Ball Any of you fab yard hands know what happened to the Demag CC-4000 (880-ton) crawler that Bechtel bought for the Chevron Richmond (CA) refinery job back in the mid-80s? When that job finished up, we quoted that crane to the Houston area, Louisiana - all the big fab yards, plus Hyundai to South Korea. There were big plans for it to work on the nuclear side, but we all know that went in the toilet, along with my career in late 86.
Carlos Garcia Jim Ball that crane was bought by GULF MARINE FAB for there yard in Texas in 1999 the lower unit caught fire and melted the gantry cable and the boom and mass came down it had 300 feet of main boom it was sold to a Mexican crane company they shipped to there yard in Mexico and refurbished.
Rodney Thibodeaux Had that many cranes due to flex in deck section ,and not to overload any crane ,because ground condition was not too level when tracking it throws a load on crane going over small hills ,I was on this lift ,operated the 4000 with white tip.
Steve Khail It’s a platform deck for a shallow water drill rig. Photo taken by Jack Nochton at Delta Fabricators in Houma, LA.

Steve Robinson posted
No idea what they are lifting but apparently this is a world record in 1984
Photo credit -Herschel Sinclair
Sean Brennan Probably one crane these days.
Benny Marczak All 4100 Mani by the looks.
Jack Hines That picture was a Manitowoc add in Engineering News Record back when.
Marty Mullins And not an LMI or lift plan in sight
Just good riggers and operators
Alan Brown I think in 1986-87 Brisbane held a world record for the largest roof in square meters to be lifted . Every pin jib from Brambles, Aitkins, Lindores, was involved. QLD Pavilion, EXPO 88. I was with EDI. I saw the lift,

William White Alan Brown Smiley removed all the spaceframe from in front of and over the Sth, Brisbane rail station when expo finished ,he popped up at KM and said I want to do this in one hit , I thought Shit but said ok it ended up with a 60 from Polly our 50 and 30 two frannas and a wobbly we just lifted clear of the columns skewed a tad and put it on the deck , I then asked Smiles now what he answered yep I got with his fkn felt pen he marked more than a thousand pieces pulled it apart transported it to the RNA put it all back together and we lifted it up and it's still there...I never thought it would go back together.....had to run around the yard with nothing but my hard hat and boots on that Xmas party.
William White Ohh and grease all over my arse , Thanks Ces Robinson
Ces Robinson William White
Your welcome. That was a long time ago now.
Alan Brown William White . I was there for all of that, including the pen to mark all of the steel .That work was at the Expo Fun Park. I was also at the EXPO SITE with EDI for QLD Pavilion lift.

Carlos Garcia commented on Mike's post
 This is what we did in Texas Gulf Marine Fab yard 2000 ton pick and carry.

Carlos Garcia commented on Mike's post, cropped
One more pic will shares more pic later

Michael Levitz commented on Ekbal's post
Newer version and prolly the same place.
Michael Levitz Rodney Thibodeaux this was last year. No friction rigs same idea though. I took the pic.
Hartley Bergeron Michael Levitz we did 16. All in sync. I trusted the other 15 any and every day. Now they’re all gone or retired.
Justin Ivy provided five photos as comments on Ekbal's post. He indicated the left was done at Gul Marine Fabricators about 10 years ago and a large deck weight 1000-1500t.
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Pierre Lacoste posted
A more typical type of construction, laying box-section beams lengthwise onto piers, using two M-1200 ringers, the 900-ton 75A and 1430-ton 72-A. This was the only tandem pick I saw; the others were performed by a single crane. Maybe the wind that day required a second hook just to keep the load from turning on the block; it certainly wasn't excess weight or radius. It gets pretty windy in the middle of the river and the long box-section beams probably make a good sail...
Andre Mylocopos This may be the only tandem-pick by two M-1200’s ever and almost certainly the only one for two barge-mounted M-1200’s!

Jim Browne commented on Pierre's post
Miron Construction Co., Inc. posted four photos with the comment: "Trusses are going up at the new Brown County Expo Center! This is no small feat as these 15 massive trusses measure 280' in length and weigh 255,000 lbs. each."
Ben Stalvey shared
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Ben Stalvey Nice MLC 300

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Ben Stalvey commented on his share
Green Bay WI

Kyle Salm posted
Green Bay, WI 281’ clear span truss weighing in around 200,000
Ben Stalvey Nice MLC 300
Zach Hurt when you make a tandem pick like that how do u calculate what each crane is good for? sorry if it seems like a dumb question...
Rory Carver Zach Hurt Both operators stay in touch with EVERY MOVE that their making and NEVER do anything before they are told...That load must always be equal on both rigs.....
Ryan Weinkauf Zach Hurt I’ve done tandem picks with cranes disproportion meaning my rig was good for 110ton and the other crane was good for 350ton. In any tandem pick it is considered a critical lift. Should be engineered lift at this point. We used walker talkies and no one did anything that the signal person didn’t say. Let the engineers tell you were to rig up. But if you are the small crane make sure your rig is the furthest from the center of gravity just as a double check on your own. (Old hand taught me that one) Humans make mistakes all the time especially engineers.

Kyle Salm Jason Griese new brown county arena next to resch center.

Cecil Marvin Douglas Its self explanatory.
If you ask this you should not get in a crane PERIOD
Dennis DeBruler And some of us have no intention of ever getting in a crane. But that doesn't mean that we don't want to learn more about cranes. I appreciate the question and the informative responses. At first I could not figure out how this pick was supposed to work because both cranes were on the right side of the building. Then I realized that the MLC 300 has most of the load and that the yellow crane has just enough load that it can keep the truss level and twisted at the correct angle during the lift. In other words, the yellow crane replaces guys pulling on ropes.

Eric Robinson posted
18000 x 4 Hard Rock Stadium, Miami Gardens FL
Chris Mentonis Alex Gritz it was the north side truss of the roof of the renovated stadium. It weighed an excess of just 1.25 million tons!!!!!
hris Mentonis Danny West each crane was maxing out at their operating radius of 35 feet at 360,000 lbs. That was a typo before I meant 1.25 million pounds not tons. Which is very possible and if u didn’t notice each 18000 has a maxer attached for extra lifting capacity.
Danny West Chris Mentonis I knew buddy just a little gig. I was working an 18 with a wagon last year for Bechtel along with a LR 11350 with a tray.

Kyle Salm posted
Ben Stalvey Nice MLC 300Zach Hurt when you make a tandem pick like that how do u calculate what each crane is good for? sorry if it seems like a dumb question...Rory Carver Zach Hurt Both operators stay in touch with EVERY MOVE that their making and NEVER do anything before they are told...That load must always be equal on both rigs.....Ryan Weinkauf Zach Hurt I’ve done tandem picks with cranes disproportion meaning my rig was good for 110ton and the other crane was good for 350ton. In any tandem pick it is considered a critical lift. Should be engineered lift at this point. We used walker talkies and no one did anything that the signal person didn’t say. Let the engineers tell you were to rig up. But if you are the small crane make sure your rig is the furthest from the center of gravity just as a double check on your own. (Old hand taught me that one) Humans make mistakes all the time especially engineers.Cecil Marvin Douglas Its self explanatory.
If you ask this you should not get in a crane PERIODSebastien Chene Cecil Marvin Douglas
What is that comment? Are you telling me you know absolutely everything about crane?


That guy just asked a simple question. Please, just read the comment of Ryan Weinkauf. I was gonna write mostly the same....
So, no! To me it isn't self explanatory....
Danny N. Janet Cecil Marvin Douglas I guess you forgot that there was a point in your career where you asked the same question...go easy brother, at the end of his question he made it plain that he has never done anything like that and he just wanted to learn..
Much respect, sir.Dennis DeBruler And some of us have no intention of ever getting in a crane. But that doesn't mean that we don't want to learn more about cranes. I appreciate the question and the informative responses. At first I could not figure out how this pick was supposed to work because both cranes were on the right side of the building. Then I realized that the MLC 300 has most of the load and that the yellow crane has just enough load that it can keep the truss level and twisted at the correct angle during the lift. In other words, the yellow crane replaces guys pulling on ropes.Jared Holmes Cecil Marvin Douglas with an attitude like that towards questions like that, you should’ve kept your comment to yourself. Arrogance at its best.Cecil Marvin Douglas My statement stands
[And others disagree with Cecil.]

Dan Duralia commented on Kyle's post
Damn, Must have that big of trusses due to the snow load I'm guessing, this is how we do a 300ft Clear Span here in Northern California, ha

I presume that after they get it high enough, they will move the load to the left.
Maarten Sitebeheer posted
Mahammed Samy commented on Maarten's post

Matt Mohd Ji posted two photos with the comment: "Any body on manitowoc Enthusiasts members was involved on this operation. 2 16000 lifting almost 1k ton. Awesome man."
[Actually, it was a quad lift with the two crawler cranes helping two of the boat yard's gantry cranes.]
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David Schauer posted
A view of wind power components being unloaded from the Wagenborg vessel Reestborg at the Duluth port terminal this afternoon. 9/17/2022
[Note the use of a spreader bar so that both cranes can help lift the component. It must be really heavy. I wonder what part of the wind turbine this part would be.]
 
MaritimePhoto posted
Lift by two crane barges of drilling tower for drilling vessel "Atwood Advantage". South Korea. 2012
Photo: Daewoo Shipbuilding & Marine Engineering (DSME) / Atwood Oceanics

Maxim Crane Works, LP posted four photos with the comment: "Some more photos from our recent lift at the Space and Rocket center in Huntsville Alabama! Check out our Liebherr LTM 1750-9.1 and our LTM 1400-7.1 in action in our most recent video!"
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2:13 video @ 1:32 (source)

Two Lampson Translifts building a coal terminal

A video of two hydro cranes raising and turning into position a tall cylinder

A time lapse video of two cranes setting I-74 girders

Robert Schultz: Maxim performed multiple 4 crane lifts on this site setting the connecting structures between the spires. 18000’s in SL and a MLC650 SL












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