Modeling Techniques for Seismic Analysis of Supported Systems

by David W. Lindley, CCL Software & Systems Inc, Raleigh, NC, USA,
Ram Josyula, CCL Software & Systems Inc, Raleigh, NC, USA,
Brian Harrawood, CCL Software & Systems Inc, Raleigh, NC, USA,



Document Type: Proceeding Paper

Part of: Structural Engineering in Nuclear Facilities

Abstract: An automated seismic qualification process is presented which integrates the modeling and evaluation aspects of supported system design. Emphasis is placed on baseplate and joint design. Failure mode analysis is introduced as a means for determining hanger load capacity and effective spring/mass properties. Non-dimensional failure mode criteria highlight weak links in the design, establish margin, and provide for easily verified documentation of both hanger and system.

Subject Headings: Failure analysis | Seismic design | Load bearing capacity | Seismic tests | Failure modes | Failure loads | Mathematical models | System analysis

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