My comments on concern 1.
Effective bearing length of crane mats.
Specialized carriers rigging foundation.
Crane tech teaches a 4 step process.
1 shear check must be done on the timber mat 2 only 3 out of the 5 timbers are being used but all timbers are being considered for distribution.
Crosslam clt crane mat properties 13.
The longest distance from the crane s centerline of rotation radius at which a crane with a given boom length can lift any load.
Crane mat weight distribution 14.
The first product of this work was the paper effective bearing length of crane mats which was presented at the 2010 crane rigging conference in houston.
Crane weight and attachments plus load weight and rigging.
Engineering independent testing of rig mat core 11 12.
It can be done.
Quality assurance 18.
C bearing width of track 5 90 ft p load applied to one mat 207 087 lbs p crane load applied to one mat 207 087 lbs 99 95 of allowable capacity t.
Effective bearing length of crane mats ko mats gmbh 22 last a limit of the effective bearing length based ondeflection is proposed.
Mar 30 2020 by roger hargreaves euroeeffective bearing length of crane mats effective bearing length of crane mats the first product of this work was the paper effective bearing length of crane mats which was presented at the 2010 crane rigging conference in houston this paper is used as a.
Note all mats are to be placed on the ground so full bearing occurs.
Crane configuration radius.
With some basic information on the crane weight gross load weight and ground bearing pressure then the size of outrigger cribbing for adequate support can be calculated.
Examination of numerous designexamples using only the criteria of bending and shear strengthshows that some mats exhibit excessive deflections greaterthan one inch on s of ter soils.
Crane mat shipping sizes available 15.
Effective bearing length of crane mats.
A glossary of common crane and rigging terms.
The mats have 2 7 8 dia rods running through the timbers that have been impacted tight.
Track bearing length 31 49 ft soil bearing method mat strength method ground bearing pressure.
Calculate the force exerted on the ground i e.
This paper is used as a reference in keith anderson s book rigging engineering basics in the chapter on load spreading for mobile cranes.
An assembly of.
12m boom length.
