By: D. Larry Dunville
Tel: 574-210-8612
Email Mr. Dunville
This article is a short form introduction to a PowerPoint presentation published on Slideshare.com. The full presentation includes charts, mind maps, line drawings and photographs to help in the identification of the various types of cranes referenced in this introduction. The link address is at the end of the document.
It is absolutely critical in the evaluation of a legal case involving cranes, to determine what type crane is involved. The word "Crane" is a generic term that covers virtually anything that lifts with a hook, but each crane type is a whole different industry with different industry associations (which compile the industry product specifications), different governing specification and different OSHA requirements. As a matter of fact, some cranes don't even have hooks!
The universe of cranes can be reduced to seven groups.
Each of this seven major categories have several sub-categories.
Using the proper vocabulary is especially hard in determining crane types. Like any industry, there is the proper nomenclature and then there's the slang the equipment has acquired over the years from the operator's.
Electric Overhead Traveling Cranes can also be called EOT Cranes, Overhead Crane, Bridge Crane, and Overhead Bridge Crane.
The term Engineered Gantry Cranes is usually reserved for the larger capacity and big ticket engineered cranes. Portable Gantry Cranes are the pre-engineered, "off the shelf" catalog products. RTG Gantry Cranes are the large rubber tired gantry cranes primarily used in shipping facilities.
All jib cranes can be grouped in three types. Wall mounted jib cranes are a bit of a misnomer. They are actually mounted to vertical columns due the reaction loadings. Floor mounted jib cranes although mounted on the floor, are almost always anchored to an engineered footing. Lastly are wall traveling jib cranes, which as the name implies are attached to the exterior vertical surface and traverse the length of the building. These are very expensive and therefore equally rare.
These are rubber tired, over the road cranes. Mobile cranes can be divided into two main groups with countless sub-groups, Lattice Boom and Hydraulic Boom.
These are the cranes commonly seen in larger cities, used to build new buildings. Tower/Construction cranes are also divided into two families, Fixed Tower Construction Cranes and Slewing Tower Construction Cranes.
These cranes are primarily used in two applications, 1) multi-modal transport facilities and 2) maritime container ports. To a much lesser extent, they are also used at industrial faculties to handle large fabrications such as tank fabrication facilities.
Stacker Cranes also come in primarily two varieties, 1) manual, pre-engineered, storage systems and 2) engineered AS/RS storage and retrieval stacker cranes.
This article is a short form introduction to a PowerPoint presentation published on Slideshare.com. The full presentation includes charts, mind maps, line drawings and photographs to help in the identification of the various types of cranes referenced in this introduction. The link address is: www.slideshare.net/LDunville/crane-knowledge-for-lawyers-outlines-crane-identification
D. Larry Dunville has over 35 years of Overhead Crane experience. Mr. Dunville has built, installed, engineered, estimated, sold and serviced overhead bridge cranes. He has sat on the industry committees that wrote the crane specs for the steel industry, written articles, and taught professional architects and engineers about the special requirements to be aware of when designing buildings that will house overhead cranes.
©Copyright - All Rights Reserved
DO NOT REPRODUCE WITHOUT WRITTEN PERMISSION BY AUTHOR.
4/13/2012· Construction
Construction Disputes: Schedule and Delay Analysis Methodologies
The equitable allocation of responsibility for project delays is essential to the resolution of many construction disputes. Contractors frequently assert that they have been delayed for reasons beyond their control. Owners often remain unconvinced that the Contractor is legitimately entitled to a time extension or delay, acceleration and loss of productivity damages.
6/15/2016· Construction
Avoiding the Pitfalls of Crane Installation In a New Building: Following the Specs May Cost You
You have a shiny new building with a shiny new crane and everything looks great. For some reason, though, the crane won't clear the building columns, even though the contractor and the crane manufacturer are saying everything is to spec and it's not their problem. Common sense says somebody is wrong and that somebody should have to pay (because it's going to cost a bundle).
3/30/2023· Construction
Construction Management Agency (CMa): Facts Not Fiction
By: Sanford C. Loy
A Construction Management agency (CMa) will administer these bonds for you to make sure they are written by viable and solvent bond companies who are on the government treasury list for approved bond companies.
