FOUNDATIONS FOR INDUSTRIAL MACHINES AND EARTHQUAKE EFFECTS 

ABSTRACT 

Improvement in manufacturing technology has provided machines of higher ratings with better tolerances and controlled behavior. These machines give rise to considerably higher dynamic forces and thereby higher stresses and, in return, demand improved performance and safety leaving no room for failures. This paper highlights the need for better interaction between foundation designers and machine manufacturers to ensure improved machine performance. The paper also describes the design aids/methodologies for foundation design. Various issues related to mathematical modeling and interpretations of results are discussed at length. Intricacies of designing vibration isolation systems for heavy-duty machines are also discussed. Influences of dynamic characteristics of foundation elements, viz., beams, columns, pedestals, etc. on the response of machine, along with some case studies, are also presented. The paper also touches upon the effects of earthquakes on machines as well as on their foundations. Use of commercially available finite element packages, for analysis and design of the foundation, is strongly recommended, but with caution. 

KEYWORDS: Machine Foundation, Dynamic Response, Seismic Qualification, Design Aids, Vibration Isolation 

Thanks to  

K.G. Bhatia 

Center for Applied Dynamics D-CAD Technologies, 

New Delhi

Er. SP.ASWINPALANIAPPAN., M.E.,(Strut/.,)

Structural Engineer

http://civilbaselife.blogspot.com/

http://ganeshadesigningstudio.in/