banner ad
Experts Logo

articles

Lawyers Guide to Cranes: Crane Identification

By: D. Larry Dunville
Tel: 574-210-8612
Email Mr. Dunville


View Profile on Experts.com.


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.

  1. Electric Overhead Traveling Cranes
  2. Gantry Cranes
  3. Jib Cranes
  4. Mobile Cranes
  5. Tower/Construction Cranes
  6. Container Cranes
  7. Stacker Cranes

Each of this seven major categories have several sub-categories.

Image

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.

Overhead Cranes:

Electric Overhead Traveling Cranes can also be called EOT Cranes, Overhead Crane, Bridge Crane, and Overhead Bridge Crane.

Gantry Cranes:

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.

Jib Cranes:

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.

Mobile Cranes:

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.

Tower/Construction Cranes:

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.

Container 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:

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

. . .Continue to PDF.


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.

Related articles

michael-panish-logo.gif

8/31/2015· Construction

Cabinetry & Millwork: Defective Design or Defective Workmanship? Who is Responsible?

By: Michael Panish

My job as a cabinetry and millwork expert witness is to inspect and evaluate casework, cabinetry, or millwork that may have either failed or may be deficient in some way. Many of the past cases where I have been designated as the cabinetry and millwork expert witness have involved analyzing products that no longer exist because they have either been replaced or destroyed. What is available for review is often in the form of architectural elevations (renderings), photographs of the damaged cabinetry, or shop drawings and samples of the materials that were used. Generally, there is a question as to what entity is responsible for the monetary loss sustained. The usual course of action by attorneys is to sue all parties in the chain of events, from design through installation.

coleman-horowitt-logo.jpg

6/21/2018· Construction

Court Determines Sanitary District Can Use Its Own Employees for Construction Projects

By: Darryl Horowitt

The Public Contracts Code generally provides that contracts for certain dollar amounts, generally exceeding $15,000 to $25,000, must be sent out for bid and let to the lowest responsible bidder after appropriate notice is given. Public Contracts Code § 20803, which governs sanitary districts, contains such a requirement for any contract exceeding $15,000.

michael-panish-logo.gif

12/11/2015· Construction

Modular Cabinet Systems Retail Store Fixtures: Injuries from Improper Installation

By: Michael Panish

I have been the retained expert witness by both the plaintiff and defendant to determine the causes of a variety of significant injuries that have happened as a result of improper cabinet and millwork installation practices. In most claims, if product abuse or deferred condition was not the reason for the injury, poor installation practices that have omitted required hardware was to blame. Architectural millwork injuries have occurred repeatedly in shopping centers and malls, hotels, hospitals, airports, and offices throughout the country. Casinos and restaurants are also routinely the location of significant cabinetry related failures leading to serious injuries. Many offices and industrial buildings that utilize modular furniture have had employees injured by improper or completely unattached components. In my other articles, improperly attached architectural millwork has been discussed. Heavy mirrors and headwalls have fallen upon hotel guests while they were asleep in bed. Generally, these failures occur due to lack of appropriate fasteners, missed structural connections, or product tampering.

;
Experts.com-No broker Movie Ad

Follow us

linkedin logo youtube logo rss feed logo
;