Overview
This course provides guidance for the design of a monorail beam system. The design concept presented is for a manually-driven trolley hoist on a single beam or girder based primarily on the Crane Manufacturers Association of America (CMAA) Specification No. 74. Deflection limitations, fatigue, and operational safety will also be discussed. Two case studies are presented to show the effectiveness of a well-planned overhead material handling system.
When this course has been completed, the reader will be familiar with the basic design of a single girder monorail system for bottom-running manual trolley hoists.
The student must take a multiple-choice quiz consisting of twenty questions at the end of this course to earn PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The benefits of monorails relative to manual lifting, including increased productivity and reduction of injuries
- Information to provide on engineering drawings to improve operational safety
- The components of a safety plan for the operation of monorails
- Checklist of design criteria needed in the early stages of a monorail system design
- Monorail classification systems for frequency of service, load classes and load cycles
- Proper clearances, support location criteria, design of connections, deflection limitations and common structural shapes
- Loads to consider in monorail system design including dead load, trolley load, lifted load, collision forces, wind loads and forces due to skewing
- Calculation of load factors, including dead load factor and hoist load factor
- CMAA allowable stress equations
- Interaction equations for members subject to combined axial and bending stresses
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
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