Anyone built a bridge crane?

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I am thinking of building a Bridge Crane for my home shop, it is 30x40' wondering what size Ibeams to use for running the length of the shop which is 40' the using 8x8x1/4" for the cross which is 30' then i have a trolley to put a 2,000;b hoist on, any ideas that could helpjon
Reply:uhh, how much load are you gonna lift?
Reply:no more than a ton
Reply:No way 8x8 H will span 30' and carry a 2000# concentrated load.You could try to reference something like an AISC Steel Construction Manual for some basic calculations, but this is going to get complicated fast. If you could find a copy of an old  shareware program, titled "Beam Cookbook" it would calculate some of this for you. Good LuckLast edited by denrep; 09-22-2009 at 07:25 PM.
Reply:OK, if you really want to see a home-made bridge crane, go here:http://www.garagejournal.com/forum/s...ead.php?t=2122'OldCarGuy' has the ultimate toy/work shop.Post #53 on page 3 has some specs on what he used for his beam.LaneLast edited by Photo; 09-24-2009 at 10:51 PM.Reason: Added Information
Reply:jon1996,If you go to post #92 on page 5 of the above mentioned post, it gives a couple of references for beams and cranes.Lane
Reply:The closest I have come to that is building a hoist frame on 4 wheels.I built the end frames with 2 inch pipe and rectangular tubing with pipe bracing........I used a 4 inch H-Beam across the top, and then put a trolley on the lower flange. Hooked my chain hoist to that.Simple to make and it just bolts together....... You can lift and then roll the frame across the floor if you need to The trolley allows you to move the lifted item left to right.. Not a bridge crane by any means though...... pgDynasty 200 DX_set up to run on 3 phaseCoolmate 3MM 251 w/ Spoolmatic 30AHTP 625 Micro Cut Plasma CutterVictor O/A RigBridgeport Mill_3 phase10 inch South Bend Lathe_3 phaseQuincy 325 2 Stg. Air Compressor_3 phase
Reply:Here is the larger hoist frame I built at home, then loaded it up in my short bed pick up and tranported it to the boat shed 70 miles away. Previous pics show it set up in the shed where I used it to remove the 140HP Evinrude from the boat. The frame is 12 ft tall...............Later, I needed another one to use around the house, so I built a smaller hoist (10 ft tall) so I could get it under the carport. Unbolts for storage in just a few minutes. Also used a 4 inch H-Beam for this one too.Pic shows it painted, but no wheels yet and not bolted together........Dynasty 200 DX_set up to run on 3 phaseCoolmate 3MM 251 w/ Spoolmatic 30AHTP 625 Micro Cut Plasma CutterVictor O/A RigBridgeport Mill_3 phase10 inch South Bend Lathe_3 phaseQuincy 325 2 Stg. Air Compressor_3 phase
Reply:pinion gear,I like the lifting framework.  Do you have any accurate ideas about what the lifting capacity is for that setup?  How about stationary lifts vs. rolling the frame with a suspended load?Benson's Mobile Welding - Dayton, OH metro area - AWS Certified Welding Inspector
Reply:Originally Posted by A_DAB_will_dopinion gear,I like the lifting framework.  Do you have any accurate ideas about what the lifting capacity is for that setup?  How about stationary lifts vs. rolling the frame with a suspended load?
Reply:Beam deflection calculator:http://www.engineersedge.com/beam_be...flection_2.htmSection properties of various I beams:http://www.engineersedge.com/standar...properties.htm
Reply:I got a gantry crane from HF.  Back when I bought it it was 500 bucks.  Its adjustable from 8' to 12' tall with built in winches on each leg.  I widened it out to 12' though.  I put two trolleys and 2,1 ton chain hoists on it.  I couldn't of built it for that money and options.