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Assessing Equivalent Viscous Damping Using Piping System Test Results

Description: The specification of damping for nuclear piping systems subject to seismic-induced motions has been the subject of many studies and much controversy. Damping estimation based on test data can be influenced by numerous factors, consequently leading to considerable scatter in damping estimates in the literature. At present, nuclear industry recommendations and nuclear regulatory guidance are not consistent on the treatment of damping for analysis of nuclear piping systems. Therefore, there is sti… more
Date: July 18, 2010
Creator: Nie, J. & Morante, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Demonstrating Structural Adequacy of Nuclear Power Plant Containment Structures for Beyond Design-Basis Pressure Loadings

Description: ABSTRACT Demonstrating the structural integrity of U.S. nuclear power plant (NPP) containment structures, for beyond design-basis internal pressure loadings, is necessary to satisfy Nuclear Regulatory Commission (NRC) requirements and performance goals. This paper discusses methods for demonstrating the structural adequacy of the containment for beyond design-basis pressure loadings. Three distinct evaluations are addressed: (1) estimating the ultimate pressure capacity of the containment struc… more
Date: July 18, 2010
Creator: Braverman, J. I. & Morante, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

On the Correct Application of the 100-40-40 Rule for Combining Responses Due to three Directions of Earthquake Loading

Description: The 100-40-40 rule is often used with the response spectrum analysis method to determine the maximum seismic responses from structural responses resulting from the three spatial earthquake components. This rule has been referenced in several recent Design Certification applications of nuclear power plants, and appears to be gaining in popularity. However, this rule is described differently in ASCE 4-98 and Regulatory Guide 1.92, consequently causing confusion on correct implementation of this r… more
Date: July 18, 2010
Creator: Nie, J.; Morante, R.; Miranda, M. & Braverman, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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