Heavy Lift Specialist

Another Two Day Seminar in Singapore on 23+24 June 2014

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Aug 132014
 

 

IMGP0217This week on Monday and Tuesday the 23rd + 24th of June 2014, another Seminar/Masterclass “Heavy Transport & Lifting was presented to 20 participants from 4 different countries (Malaysia, Singapore, Phillipines and Indonesia) in the prestigious Mandarin hotel in the centre of Singapore on Orchard Road.

All participants had to work hard to digest all the “tips and tricks” Richard was sahring with the delegates and to do the evalaution test at the end of the second day.

In case you missed this Seminar, you can still purchase the complete set of Seminar slides as well as all 47 videos presented in the Seminar and as a Bonus you will get all 50 articles dealing about handling Heavy Lifts safely as well as 10 extra videos, amongst them the historical video: “Lifting the bIg Ones”, which Richard wrote and made during his 40 years career and were published in magazines like International Cranes (IC) and “Heavy Lift Project Forwarding International” (HLPFI).

Check it out on his website HERE in order to get an idea what you will get and at what price.

For an impression look at pictures below:

Breakbulk Heavy Transport & Lifting Seminar/Masterclass in Sao Paulo on 4+5 Sept. 2013

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Sep 082013
 

On the 3rd+4th of Sept. 2013 a public Seminar/Masterclass was presented at the Breakbulk Conference in Sao Paulo.

DSCF9640 A Group of 21 participants learned how to handle Heavy Lifts safely and find out from Richard Krabbendam, what you should and especially what you should not do.

Sign up for the next Heavy Transport & Lifting Seminar/Masterclass at Breakbulk New Orleans on the 23-24th of Sept. 2013.

Below some pictures of the Seminar in Sao Paulo and some Testimonials:

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A very good course to any professional related to the heavy lift market

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Very good presentation  with nice examples. The quick lunch was a very good idea, this helped the class not to be sleepy!

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la foto Continue reading “Breakbulk Heavy Transport & Lifting Seminar/Masterclass in Sao Paulo on 4+5 Sept. 2013” »

Mistake in article 08Groundbearing Pressure

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Aug 142013
 

For those of you who have subscribed to my articles, one of my readers made me aware of a mistake made in one of the calculations. See my answer below

 

Dear Sadegh,

Thank you very much for your remark. It seems you have carefully studied the article and you are correct. The moment must be be taken around the tipping line 1-2, so indeed the distance from the hook load to the tipping line is 7 m and not 12 and consequently the distance of the combined CoG from the tipping line Y= 1.3 m and not 0.88 m as shown in the article and figure.

You are the first one who made me aware of this mistake.

Kind regards,

Richard L.Krabbendam

Heavy Lift Specialist

www.heavyliftspecialist.com

 

2013/8/14 Sadegh Kashaninezhad <sadeghkashaninezhad@yahoo.com>

Dear sir,

I will appreciate for your valuable papers. Please check the following comment for your new article ” ground pressure ..”

in calculating the horizontal position for center of gravity it seems there has been made a mistake during moment equation over tipping line 1-2 as:

1-the distance for load isnot 12m from line 1-2 , maybe 12-5=7m

2-the correct moment eq. should be :

160*7.8-125*7=(125+160)*Y , Y=1.3m

——-

because of opposite direction

sincerlley yours

S.S.kashani Continue reading “Mistake in article 08Groundbearing Pressure” »

A two day Heavy Lifting Seminar for Egytrans in Alexandrie, Egypt

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Jul 012013
 

End June 2013 a two day “Heavy Lifting” Seminar was presented at Egytrans/ETAL in  Alexandrie, Egypt.

The full staff of Egytrans and one of its partners in Egypt, Ship & Crew Egypt, a group of 25 persons in total joined this new two Day Seminar which is mainly focused on Lifting of Heavy Lifts and the do’s and don’ts in lifting techniques.

Egytrans is in full swing to improve the capabilities and know how of its engineers as well as operational staf in order to be ready for the future business in Egypt. An extensive investment program has already started with the purchase of Heavy duty prime movers (3 x MAN TGA 41680 8×4 tractor units) , 40 lines of new Scheuerle IC Hydraulic Platform trailers as well as 6 x Faymonville extendable Telemax trailers of 49 m length and a semi 8 axle line Hydraulic Platform trailer with Gooseneck.

See pictures below:

The Egytrans and Ship & Crew Seminar group

The Egytrans and Ship & Crew Seminar group

Egytrans and Ship & Crew Management with Richard L.Krabbendam, the presenter of the Seminar, during lunch

Egytrans and Ship & Crew Management with Richard L.Krabbendam, the presenter of the Seminar, during lunch

Continue reading “A two day Heavy Lifting Seminar for Egytrans in Alexandrie, Egypt” »

Breakbulk Heavy Transport & Lifting Masterclass Antwerp attracted 23 Participants

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May 172013
 

This week Richard L.Krabbendam the “Heavy Lift Specialist”, presented his two day Masterclass/ Seminar to an international group of participants at the Breakbulk Antwerp Conference & Exhibition, which took place  from the 13-17th of May 2013 in Antwerp, Belgium.

Below a series of pictures  of the participants which came from: Australia, Germany, Uruguay, Brazil, Chili, The Netherlands, Belgium, The UK, Japan, Spain, Bulgaria, France, Denmark, Italy and some Testimonials:

– This Seminar is very interested for me (especially for Transport with Hydraulic Trailers & Load-outs). I will recommend my colleagues to attend this one!!

– More Sea Transport & Lashing!!

– Great experience. Good lesson is: learn from mistakes: people usually want to forget!

– Fantastic Workshop! This presentation was excellent, perhaps 3 day Workshop would be better to allow to absorb the information

The next two Day Masterclass/Seminar “Heavy Transport & Lifting” is scheduled  on the 4+5th of September 2013 in Sao Paulo, Brazil. Click here to register.

23 participants from 12 countries joined the two day Masterclass/Seminar "Heavy Transport & Lifting" at the Breakbulk Conference & Exhibition in Antwerp

23 participants from 14 countries joined the two day Masterclass/Seminar “Heavy Transport & Lifting” at the Breakbulk Conference & Exhibition in Antwerp

P1070559 Continue reading “Breakbulk Heavy Transport & Lifting Masterclass Antwerp attracted 23 Participants” »

Newtons Three Laws of Motion

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Oct 052012
 

VideoBrief: Newton's Laws of Motion illustrated with 3D animations and motion graphics

A fun little video project I did illustrating Isaac Newton’s three laws of motion. The music is original as are the 3D animations and motion graphics. Let me know what you think about it. Does it effectively illustrate the concepts? I’d like to do more of these types of videos. Continue reading “Newtons Three Laws of Motion” »

SAFETY CONSIDERATIONS WHEN LIFTING WITH TWO OR MORE CRANES

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Sep 282012
 

As loads get bigger, there is an increasing interest in tandem, triple and even quadruple crane lifts, Richard Krabbendam looks at some of the safety implications.

Heavy lift 120 tons erected with three cranes onto column

Upper part of column 120 tons erected with three cranes onto 88 lower part column

Ever increasing dimensions and weights make it more and more necessary to consider the use of two or more cranes to lift one load.  Such an operation frequently requires the preparation  of a detailed  rigging plan to clearly determine the limits within which the lift can be made safely. The main objective of this rigging plan is to investigate how possible overloading of the lift cranes can be  avoided. One method of avoiding overloading cranes is the use of equalizer beams, but there are other methods as well. Careful examination of a crane’s capacity chart is essential before a lift is planned. Different countries prepare these in different ways:   in the  Netherlands for example,  the crane capacity charts were all based on 66 ²/³ % of tipping load, while in other countries such as Germany or the USA the crane capacity charts are usually based on 75 % or even 85 % of tipping. Nowadays, all capacity charts are based on 75% of tipping moment.

One should also be aware of the fact that not only tipping of a crane but also strength of the boom determines the max. allowable lifting capacity.  The strength of the  crane boom is usually the capacity range at short radii, whereas  the tipping area usually covers the larger radii. In some cases this is clearly marked on the capacity chart of the crane. When lifting with one single crane, this margin against tipping ensures that the crane can accept a certain overload. Under  all circumstances one must try to  avoid situations in which the crane’s rated  capacity is exceeded, but as we all know in some cases it happens unexpectedly,  e.g. when the horizontal level of the crane is disturbed by weak ground conditions, or when wind affects the load. When lifting with two or more cranes the load distribution over each crane can, however, be very critical and should be calculated before the lift is made.  Most contractors include an increased safety margin against tipping of the crane when a tandem lift is executed. The Dutch safety rules state, for example, that the capacity of each crane should not exceed 75 % of the rated capacity when lifting a load with two cranes.  This safety margin can be decreased, provided a detailed rigging study is prepared and submitted to the concerned authorities for approval. Continue reading “SAFETY CONSIDERATIONS WHEN LIFTING WITH TWO OR MORE CRANES” »

LIFTING A PRESSURE VESSEL WITH ONE MAIN CRANE AND A TAIL CRANE (1)

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Sep 282012
 

In the previous article, I discussed the lifting with two cranes of horizontal pressure vessels or beams. I plan to continue with the discussion of erecting a pressure vessel from horizontal position into the vertical by means of one main lift crane and a tailcrane.  Specific points which should be considered and can be advantageous to the lifting contractor include:

  •      Decreasing tailload due to offset of tail lift point
  •      Position  of tailcrane
  •      Capacity of tailcrane
  •      Type of tailcrane i.e. crawler crane or truckcrane
  •      Type and Capacity of main lift crane  (crawler- or truckcrane)
  •      Position and type of lifting points (Lifting lugs or lifting trunnions)

Let’s look at Figure 1, which shows a pressure vessel of 150 tons in weight and an overall lenght of  approx. 36.6 m. The  lifting point “A” at the base ring  (skirt) of the vessel is positioned  3.0 m above the centerline of the vessel.

The main lifting lugs  “B” are placed 20.1 m away from the CoG. and located on the centerline of the vessel. It is this socalled offset of the tailpoint (3 m) which could work in our advantage, provided we plan it right.

Case Study
Let’s take a look at the plotplan of the foundation, on which the pressure vessel must be erected.

The foundation is a concrete plint at groundlevel and let’s asume there is  ample room to position the main lift crane and tailcrane. In order to prepare the most competitive bid, the rigging engineer should study the most economic erection method. I realize that there are a lot more factors that determine the crane capacity and type to be used , but to keep this case study relatively simple, let’s assume that the truckcrane solution offers the most economic option. Continue reading “LIFTING A PRESSURE VESSEL WITH ONE MAIN CRANE AND A TAIL CRANE (1)” »

LIFTING A PRESSURE VESSEL WITH TWO MAIN LIFT CRANES AND ONE TAIL CRANE (2)

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Sep 282012
 

I conclude this serie of 3 articles on multiple crane lifts with the erection of a pressure vessel  of 520 tons by means of two main lift cranes and one tailcrane.

The  pressure vessel which needs to be erected is shown in Fig. 1 .

We will make use of the technics which we learned in the previously discussed topics and  which are summarized below:

  • Decrease of tailload due to offset of tailing lug
  • Decrease of tailload due to position of main lifting trunions close to the CoG of the column

Enormous Crane
Due to the enormous weight and lenght of  the column it would require a very large crane to erect it from horizontal into vertical position. An alternative method would be the erection of this column by means of a mast gantry system (or Gin Poles). The use of such a lifting gantry is though  time consuming and  occupies a large area of the construction site due to guywires which are in many cases needed.  Guyless lifting gantries are available as well ,  but they still require a rather big crane to assist in the erection of the gantry itself. Another disadvantage of the mast gantry system is the high point load underneath the legs of the gantry, which must be absorbed by specially constructed foundations.

Depending on the location of the jobsite, erection by means of two main lift cranes and one tailcrane, offers in general a far more efficient and faster erection method than the use of lifting gantries.  Only in remote areas , where the mobilisation/demobilisation of mobile cranes is very costly, the previously mentioned disadvantages of the lifting gantries still justify the use of such systems.  Hire rates and mob./demob cost of mast gantry systems are in general lower then those of large cranes.   In Western Europe  nearly all large columns are erected by cranes and only in those cases, where cranes cannot offer sufficient lifting capacity, the mast gantry systems offer a good alternative. Continue reading “LIFTING A PRESSURE VESSEL WITH TWO MAIN LIFT CRANES AND ONE TAIL CRANE (2)” »