Jib Crane Installation: Cutting out the Slab and Pouring a Reinforced Foundation

Jib Crane Installation: Cutting out the Slab and Pouring a Reinforced Foundation
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[@davidmam]

"Got it all cleaned up so we can make our next mess" 😂😂

[@johnbewick6357]

Its really great the worldwide community the internet has created. Friends coming from all over to help Keith with this project is fantastic. Even living in the UK I feel like I know you all as friends.

[@TheUncleRuckus]

No need to apologize for blocking the camera Keith, we can still see what's going on Hell I'd say we're lucky that we even got any footage at all considering how much needed to be done, I wouldn't have blamed you for not filming all things considered, so thanks! 👍👍

[@rustywrench2119]

Thank god for the young blood to help out us older folk. That Kieth looked like a heck of a worker.

[@mschmitz57]

Looks like top notch helpers. Kudos to you all for helping Keith.

[@Gus123]

What a great community of people you have watching, commenting, and showing up to help. Good on them.

[@nitehawk1224]

Great job Keith and crew. Can't wait to see the mast go up. Also on a side note... Ginger is slipping on her cat duties... She did not leave her footie prints in the concrete.

[@gardenman3]

I wonder if that means it did not pass the cat scan?

[@richardsurber8226]

Wow it is good to see the community come together to put a project together. Thanks to all the volunteers and to Keith for the video

[@RobertFay]

*- To the younger friend with the gray skull cap, Zane; Thank you for bringing your concrete form work experience to help Kieth and the rest of your friends.* *- Good job everyone. It is nice to see men so easily working as a cooperative, supportive unit.*

[@Hoaxer51]

I like when guys show up wearing a back brace, most have worked hard and their backs always are sore. Instead of taking it easy, most of these guys just get a back brace and just keep on working hard! Nice job guys!

[@Stefan_Boerjesson]

Well done. Great guys taking part of this. No problem watching people walk near the camera.

[@dougbourdo2589]

That jib crane will be a real help.

[@Mad-Duk_Machine_Werkes]

NOW! (if you want my trick) Get a paver brick, get a kneeling pad, get a bucket of water, hold the paver brick in your hand like it was a sponge and get down on your hands and knees and swish and wipe the wet paver around like youre trying to wipe spilled ketchup off your kitchen floor! It will "wet sand" all those spill marks and blend the edges in PERFECTLY and help make the transition go away around the square!!! I have done this on pool deck plumbing repairs and other similar concrete repairs with great results.............

[@Rovinman]

Very Professionally Carried out ! 7 days for Initial Set, 28 days for final set . ! Then Grouting ! Very well thought out Kieth ! Stay safe ! Stu xx

[@peterhobson3262]

As Keith said, they're actually just following the manufacturer's instructions.

[@terminalpsychosis8022]

Beautiful to see so many family come by to help. Good planning, and smart helpers make for fast work. That went down with hardly a hitch. So looking forward to seeing the crane put together.

[@paulhunt598]

Interesting to watch and to see the trouble that you took to do the foundation properly. I couldn't possibly give an actual number of jib crane installations and/or relocations that I have done or supervised, but I bet that it exceeds 100. I employed the method that I was taught, modifying it slightly as my experience increased. Each installation was in the same plant, but done in separate era buildings. I understand that our shop floors were specified as 8" floors, but drilling through the floor countlessly numbers of times, much of our shop floor, in the oldest building, was closer 6-7". We had about 25 jib cranes and relocated many of them several times over 3.5 decades of my employment on the maintenance staff. We/I never installed a proper foundation. Our standard solution was wedge style anchors. After I took up leadership, we upgraded to higher tensile strength hardware, but employed the same method. Our jib hoists were mostly 1T, but we had a few smaller tonnage units. We had many brands of jib hoists. We had the simple column, tube and I beam versions; small base to enormous flange re-enforced base; cantilever rear support to Gorbel formed steel systems. Just after I hired on, we modified a jib hoist with several feet of extra I beam reach and didn't upgrade the column base footprint. I think that we grouted one installation due to a sketchy compromised anchor installed. We possibly grouted another or two for similar reasons. Normally, we shimmed the column base to obtain column plumb and torqued the anchors to the shims. We never experienced any installation failure except for the grossly modified unit described. We very occasionally had to retorque an anchor installation shortly after an installation. Our shop was on the hyper safe end of the safety spectrum, but for culture and experience reasons, we always ignored foundation specifications for jib hoists. My experience validated that jib hoist foundation specifications are vastly over engineered. Our shop was stickler for following specifications except for 3 routine violations that I easily recall... No foundation upgrades for jib hoists, seldom foundation upgrades for very large CNC machines and no additional ground rods commonly specified by CNC manufacturers. I applaud you for the expense and effort that you are taking. Certainly compromising the integrity if your shop floor with the slab cutout increases the wisdom of the enormous foundation effort. Hoist manufacturers consistently increased the column size and base footprint over my employment career, probably due to installers like us! This frustrated our industrial engineers, especially after Lean Manufacturing and Continuous Improvement of the Toyoda management system became our operating norm. These practices forced us to cram machinery and workstations into tighter footprint configurations. The enormous later model jib hoists were despised, because the consumed so much floorspace. The newer larger footprint hoists were frequently being pushed into shop areas with less congestion. This allowed repurposing older hoists into tighter congested shop areas. I envy your jib hoist. They are a dream to use, especially if you have lived with a gantry and chainfalls like you and I have in our home shops. You may find better solutions, but we standardized on Harrington 2 speed electric chain hoists in any area that demanded hook travel speed precise control, like you need when positioning work in a lathe, assembly operations and positiong work between centers in a cylindrical grinder. The 2 speed option gives the slow hook travel for precise positioning, but also allows "rapid" travel speeds for standard lifting. The soft start feature is included as pretty standard on modern hoists that we employed. That is a welcome feature too. Harrington was on the affordable end of the industrial hoists spectrum when I was participating in the buying. They proved dependable and were the requested brand by our users. The time, trouble, expense and permanency of a proper foundation would have been a production interruption No Go for our company. A jib hoist relocation would be part of many workstation relocations. Any workstation that demanded a 1T jib hoist was likely only out of operation for a few hours. Weeks long foundation preparation for a hoist installation would have never been allowed for our around-the-clock production operation. We staffed our maintenance crew for around-the-clock service which facilitated shop relocattions with minimal production interruption. I installed a 14k # 2 post vehicle lift in my home shop. I installed the specified 8" concrete floor and used the manufacturer supplied wedge anchors. This hoist has "tiny" column footprint. I have had trucks on my lift using full rated capacity. I place jack stands to steady those heavy loads, but I have had no anchor issues. You have demonstrated sketchy work in other videos and that commonly brings out the hater comments, but you won't warrant any hater comments on this effort. You went the extra mile!

[@danielhoulihan7769]

Great job guys! Quick comment, having worked in a concrete testing lab, concrete will achieve 75% of its strength in 7 days and pretty near 100 % in 28 days. However, that is under ideal conditions. You have a significant mass of concrete there. It will generate a lot of heat and you have no way of keeping it at ideal curing temperatures, all of which will slow down the curing process. In an exercise of extreme caution, and with a recognition of the loads that will be exerted on this block, you may want to double the curing time frames you were using. Just my thoughts. Love your site!

[@waynebrown7376]

Good friends are gold!

[@dwaynekoblitz6032]

Great job everybody! You are all so awesome to show up for free labor. What an amazing group of guys.

[@rogerbraidwood7611]

it gave me a warm feeling seeing you guys working together This is the American spirit that made your country ...Respect ...From a English Man Living in France !!!!!!!!!

[@joewhitney4097]

Wow Keith, the jib project started out well. It was great the amount of help you received on the hardest work portion of the project. The equipment loaned to you was fantastic in making it easier and a better pour. All the folks who were able to come over and help along with those who loaned the equipment deserve a big hand and thank you. Great job everyone, I know Keith really appreciated the help along with all of us who follow along on youtube. Thanks for sharing.

[@RicktheRecorder]

Great operation! Please keep your mobile phones and radio mikes separate!

[@gregr267]

I'm not the least bit surprised you had willing helpers. Those who give of themselves freely often have ready hands to help them when the time comes.

[@tomoakhill8825]

I love the teaching that Keith does. I _know_ that you do _not_ ever weld rebar. Concrete structures are subject to thermal expansion and contraction due to temperature changes. Tying rebar with wire allows for some movement between the rebar and the concrete without causing stress concentrations or failure points. Welding rebar together would restrict this movement and could lead to cracking or structural damage. Welding can alter the metallurgical properties of the rebar, potentially reducing its resistance to corrosion. Tying with wire preserves the integrity of the rebar material, helping to maintain its durability, ductility, and longevity in concrete structures.

[@mygoggiesperfecture]

This comment is factually incorrect in all aspects.

[@mudgutsisgeordie]

Welding is fine if you follow correct procedures.

[@jackgreen412]

Excellent! Very well done as you made a quality video and a g ood base for the jib crane. I ignored the people walking in front of the camera because they were to work.

[@Jim-he4km]

I'm looking forward to seeing you working with the new crane. I can only imagine what is next, but I'm excited!!!! Congratulations on getting it done in short order. Ga. boy here, I'm proud to have you representing for us!!!!!

[@garybrenner6236]

Maybe the Stoker Engine will be next.

[@RichardBennett-hx8sr]

Hi Keith, I've followed you for some time I have to say you are amazing, I've been a self taught machinist for 40 plus years but I learn form you all the time and I'm often amazed at what you do. It's no wonder there are people willing to come over to your shop t help you continue what your teaching us.

[@wdhewson]

Good men are special friends !!!

[@davidc6510]

The best thing about volunteer help is watching guys that know what they are doing and seeing them work their tails off. I heard you say mix 3.7 yards of concrete by hand and nearly fell out of my chair. I then saw that bobcat front loader mixer and said - brilliant tool to get the job done. Hats off to all the crew that took time out of their lives to help Keith dig, form, and pour the foundation for the jib crane. God bless you all and well done lads. A great video Keith considering how busy you were and most of all.... Thanks for sharing!

[@yoopseebus2482]

Nice job Keith. I see you had enough people to help you out, so my presence was not required. Congrats with the result.

[@walterplummer3808]

Good morning Keith! Glad it worked out so well. Have a great week.

[@johnnyholland8765]

When you have help that will do the job in the pouring rain you have GOOD help... Wish I had known and I would have came down to help. I am only about 60 miles north. Glad y'all got it done.

[@bobh64]

Great work everyone.

[@Digital-Dan]

I'm a big fan of the voice-over approach. The results are much more comprehensible and enjoyable. I imagine the work is greater though.

[@patrickcolahan7499]

A jib crane is one of the best tools to have in a metal working shop. Congrats, will be so nice when it is installed. My compliments to all those people who gave up there time to help. Speaks volumes about their character. Thanks for sharing.

[@davidwright640]

Wow ! First time seeing how large the room is.

[@hasletjoe5984]

Great to see the mix on the team from the young studs to the war horses and the super experienced! Looks like everyone was working steady and always helping out. Fantastic.. Now I will have to start shopping for a crane!

[@mikecabral1579]

Great job a wonderful group of people to share the work and lend a hand. I was impressed with everyone involved standing in the rain not running for cover. Sharing the discomfort as well. 👍

[@ohhpaul7364]

Happy to see you had plenty of help and thank you to all of the gentlemen who came out and helped you.

[@ronkluwe4875]

Great to see everyone helping out. One tip if you need to start using a foundation as fast as possible is to ask for a high early mix and to ask for 3 test cylinders to be poured and then tested at 24 hours after the pour, 3 days after the pour, and 1 week after the pour. Most concrete mixes test out higher than the stated design value and the foundation load capacity is based on the design numbers, not the actual numbers. The good thing about concrete is it gets stronger over time. A foundation can be used for the designed load as soon as a cylinder break exceeds the design values. I have seen 3,000 PSI design mixes test out at over 3,000 PSI in a couple of days and to eventually hit over 5,000 PSI on a 30-day break. Most concrete plants use a bit more cement in their mixes than the design calls for as a safety margin so they don't end up having to pay for replacement of an understrength foundation. Just some FYI for any folks who may have a quick need for a foundation.

[@csnelling4]

Thanks Keith good guys to come and help you . Sod’s Law Keith ,if a camera is recording someone will stand in front of it , end of 😂

[@hawkinscsa]

WOW, all the way from Creedmoor, North Carolina! I used to work in Creedmoor. Great Job Guys!

[@cschwad559]

Heck, I almost drove down there from Montana to help out. Lordy, that’s a long ways!

[@paulelliott2861]

Agree with the other folk. So nice in theses days that communities come to those in need. Nice one guys. Love from the U.K love Keith and his knowledge and skill god bless guys. 👍🏼👍🏼👍🏼🤜🏻🤜🏻🤜🏻🤜🏻🫶🏼🇬🇧🇺🇸

[@MikeBaxterABC]

16:00 and again PERFECT, nice timing getting finished the pour by 5 PM!!!

[@tedmiles2110]

Ever since you showed the arrival of that jib crane; I have been looking forward to seeing this installation. It is not like anything else you have done! I know a shop that has a six ton example, and it is worth its weight in gold! Well done gents! TM retired but interested in KR projects.

[@wesleymonske8103]

Gotta get some kitty prints in it.

[@rustysteed8414]

Looking good, Keith. Wish I was closer.

[@stumccabe]

Excellent team work guys!

[@clivewilliams3661]

I was surprised that the existing floor is so thin and it didn't contain any rebar. The limited thickness of the existing slab does not lend itself to the drilling and insertion of rebar dowels to link the old and the new. In situations like this the best way I have found to construct machine bases and pits is to overbreak the excavation so that the poured concrete flows under the existing slab by about 6-8" (150-200mm) to provide a ledge support for the slab around the hole TBH I can't see the rebar dowels that were inserted being much use except to crack the thin existing slab due to the differential pressures on the slab and crane base, there appearing to be less that 2" of cover over a minimal number of rebar dowels. I trust that the dowels were plain bar and debonded from the new base? Once the crane is installed and grouted, I would suggest that the new concrete be finished with anti-dusting agent (a diluted Unibond mix is a convenient application). Also, the edge of the new concrete base needs to be cut to receive a flexible grout because without it the shrinkage of the new base will create a crack and the concrete edge will spall.

[@samuraidriver4x4]

Plenty sparks when they were cutting it do it probably has rebar in there.

[@clivewilliams3661]

@@samuraidriver4x4 Maybe but it is still thin for a workshop floor with the loadings that Keith puts on it. Usually industrial floors are 200mm (8") thick with mesh reinforcement with 40/45mm cover, some of the older ones are 150mm (6") thick but only the old domestic floors were 100mm (4") thick but even they are now typically 150mm thick.

[@mathewmolk2089]

@@samuraidriver4x4 Typically you are only going to find wire - not any regular re-bar.

[@truckguy6666]

Doweling the slab to the new footing is absolutely a must-do but I would have done 1/2" rebar about 6-8" deep with Simpson SET XP epoxy, every 16-18" around the opening. You will not have any spalling here. The holes have to be brushed and blown out several times before epoxying.

[@marcosmota1094]

Keith you can make a bow float from 3" wide aluminum plate. Use a piece of 1"x6" scrap wood, just nailed it. Five minutes on the grinder will smooth the edges and knock the corners. Even 1/4 plywood does the trick too.

[@kevinhornbuckle]

Your crew is dedicated and talented. They earned their skill sets.

[@jeffreyspilker2209]

Nice job

[@tomdale1313]

all your prep work moved this project ahead w/o any major stoppage, thxs for sharing...

[@mdouglaswray]

LOVE the Archer shirt! He rules!!

[@DTBaker-gq4fd]

It is great seeing a well laid plan come to fruition. Great!

[@dianelabelle6939]

The camera work made it seem like we were there.

[@elliskinney5731]

Running the vibrator for more than an instant causes all the rock to go to the bottom and the water to come to the top. I may be wrong but it seemed to me that the vibrating was excessive. Ellis

[@ianfiddes9871]

Fantastic get together

[@carlkulyk366]

Great tractor Keith

[@Craneman4100w]

Good going guys.

[@MikeBaxterABC]

2:06 Vevy Pleased you are mixing it yourself!! 100% THE way to go!!! Wish I was there!! :(

[@Hoaxer51]

The money you save, especially with a small pour, is considerable. Hard work, nice job.

[@cbhirsch]

Great job to the whole team!

[@billwilson7782]

Thanks, Keith. Fun to watch.

[@frankerceg4349]

Thank you Keith!

[@brightmodelengineering8399]

Very well done Keith and crew. An excellent job that was obviously planned and prepared well. Like most jobs, it's all in the planning and preparation.

[@user-lr7qc9ef6z]

It looks great. Very nice job.

[@aserta]

Noice! Great work to everyone involved, and many thanks for helping Keith!!!

[@tpobrienjr]

Good job by a good team.

[@Bluenoser613]

Glad you got the help you needed to do it right and keep you safe.

[@JCS1069]

Thanks for showing this hope to see the crane installation.

[@assessor1276]

Super job Keith and team - well done indeed!

[@tudedude]

What a great team effort - very impressive.

[@MartsGarage]

Wow you guys did a great job! Kudos to the fellas for really pitching in.

[@mikebondarczuk5892]

Team work, you got to love it so well done

[@wesleymonske8103]

Should have made 2 pits. One outside to BBQ in.

[@bulletproofpepper2]

What a job! Thanks for sharing.

[@dlfabrications]

Great example of team work❗ Nice job everyone❗😁

[@bigredc222]

Great job.

[@forbesmathews89]

BRAVO !! LOOKS GREAT !!

[@Tammy-un3ql]

Well done.

[@pwbpeter]

That crane ain,t going nowhere ,good job guys.

[@edsmachine93]

Great work Keith and crew! Great bunch of guys you have there.👍 Can't beat some great friends with helping hands.👍 Thanks for sharing the process.

[@DavidParker]

Great to see the community coming together to get this done Keith!

[@floridaflywheelersantiquee7578]

Great bunch of helpers thanks for sharing

[@steveshoemaker6347]

Thanks Keith and all of the guy's helping..... Old F-4 II Shoe🇺🇸

[@melshea2519]

Happy Monday Keith!😊

[@The_DuMont_Network]

Great job! Only two things I didn't see were your autographing the concrete, and the end of job beer. Looking forward to seeing the crane!

[@jonunya3128]

is that young man sporting some redwings? man I love those boots..

[@thisolesignguy2733]

Great group of guys, this will be a major game changer! after the surgeries and problems Keith has had in the past few years I'm really glad this is getting put in. I know the gantry works fine, but it's still a pain to drag around the shop and this will save a ton of time and energy. I'm really happy for you Keith!

[@loloaqici82qb4ipp]

A good job done.

[@linasvelavicius330]

Great job!!!

[@stevewoodard527]

Interesting. I would have enjoyed seeing how you moved the machine tools. Maybe you could video it, with a single camera in the corner or something, when you put them all back. Nice video & excellent resources available -- people & equipment.

[@paulkinzer7661]

Grunt work is vital, but I won't lie: One thing nice about becoming handicapped (two genetic disorders that have led to four back surgeries and limited mobility at age 63) is that I can, without guilt or shame, say that I've done my lifetime's share of it. Until, of course, those times when I just have to because, well, stuff happens! Great work done here, guys!

[@chrissmith513]

WoW that's Amazing Glad you had lots of help 😊😊😊

[@elsdp-4560]

Thank you for sharing. 👍

[@TomokosEnterprize]

Well Keith, Yer doing it right and this is a big/great upgrade for the shop. Lots to pay attention to with on a prep like this. What a great bunch of fellas giving you a hand with this. From my knowledge you have a good case of over achievement happening here and that pleases me to no end. Take care Keith and I will drop in for all your next posts.

[@ctown6971]

Wow removal looked so simple and easy.

[@philipheinhold5340]

Thanks again Keith for another great video👏👏 wonderful to see you getting all that support. I was wishing I was there in the middle of it all. Not too easy to get there from the south coast of Ireland.

[@butter262]

You have many good freinds.