Session 81: IS 2974 | Draft documents | Machine foundations | SQVe Structural Summit | Bhavin Shah

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IS 2974: Draft documents

BIS has circulated draft documents of IS 2974 (Part 1 to 4) for design of machine foundations. With the rapid industrial expansion, the installation and efficient operation of heavy machinery have gained critical importance. Machine foundations are designed considering the dynamic characteristics of the machinery, as specified by the manufacturer, along with the dynamic properties of the foundation and the underlying soil or pile system. It is widely recognized that these dynamic properties of the soil or pile system play a key role in ensuring the desired performance of the foundation system.

Advancements in manufacturing technology have led to machines with higher ratings and tighter operational tolerances, making reliability critical and leaving no room for failure. To ensure optimal performance and minimize downtime, machine foundations must be designed with special attention to both their own dynamics and the need to reduce vibrations impacting nearby structures. Detailed vibration analysis is essential for understanding the dynamic behavior of the machine-foundation system. Field data on machine failures suggest that current design practices must be updated to address evolving dynamic requirements and improve foundation performance.

To cater to these objectives, it was decided to overall revise and restructure various Parts of IS 2974 to meet the current demand of satisfactory performance of machines with no room for failures. While restructuring various parts of the code, it was decided to address the parts of the code foundation-wise rather than machine-wise, except the part covering foundations for impact and impulsive load machines, that is, hammers and presses, where the foundation has to be necessarily machine-wise.

Part 1 General provisions
Part 2 Block foundations
Part 3 Frame foundations
Part 4 Foundations for hammers and presses

To discuss these important documents, live discussion was organised on 14-SEP-24 at 8:30pm IST. The session was conducted by Bhavin Shah (Founder & CEO, SQVe Consultants)

Overall aim of session is to increase awareness about IS codes and to encourage engineers for sharing their valuable comments to BIS for improvement in our national standards.