Effective Bearing Length Of Crane Mats

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.

Effective bearing length of crane mats.

Crane mat weight distribution 14. This paper is used as a reference in keith anderson s book rigging engineering basics in the chapter on load spreading for mobile cranes. Track bearing length 31 49 ft soil bearing method mat strength method ground bearing pressure. Engineering independent testing of rig mat core 11 12.

Effective bearing length of crane mats. A glossary of common crane and rigging terms. Crane weight and attachments plus load weight and rigging. Crane configuration radius.

Effective bearing length of crane mats ko mats gmbh 22 last a limit of the effective bearing length based ondeflection is proposed. Crosslam clt crane mat properties 13. The mats have 2 7 8 dia rods running through the timbers that have been impacted tight. An assembly of.

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 shipping sizes available 15. Calculate the force exerted on the ground i e. 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.

My comments on concern 1. Specialized carriers rigging foundation. Quality assurance 18. Cleaning phytosanitary elements 19.

Crane tech teaches a 4 step process. 32 4m crane can lift 4 5 tons crane utilisation load 4t x 100 4 5 88 8 crane utilization too high for hazardous area chemical plant you would need to reduce boom length or reduce crane radius load 4t 10m x 100 5t 80 0 crane utilization good 1 8m dia. Engineering analysis of crosslam clt crane mats 16 17. 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.

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. 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. It can be done.