Envelopes for Seismic Response Vectors. II: Application

Menun, Charles; Kiureghian, Armen Der

doi:10.1061/(asce)0733-9445(2000)126:4(474)

Cited by 43 publications

(32 citation statements)

References 2 publications

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“…In typical concrete design, however, multiple interacting response quantities are often considered. The combination methods for multiple interacting response quantities are distinctly different from those for a single response quantity [10][11][12][13][14][15][16].…”

Section: Combination Of Structural Responses Caused By Three Directiomentioning

confidence: 99%

“…To determine the critical combinations, one possibility is the ap-proach described in ASCE 4-98, Section 3.2.7.1.3(b), based on the work by Gupta and Singh [10]. More recently, Menun and Der Kiureghian [12,13,16] have proposed an approach based on random vibration theory that has several advantages over the latter. However, none of these approaches were used in recent DC applications, possibly because of their relative complexity.…”

Section: Combination Of Structural Responses Caused By Three Directiomentioning

confidence: 99%

“…Recent DC applications have followed this conservative assumption. Additional research is needed to quantify the degree of conservatism of this assumption relative to the more realistic approach described in references [12,13,16].…”

Section: Combination Of Structural Responses Caused By Three Directiomentioning

confidence: 99%

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Structural Design Challenges in Design Certification Applications for New Reactors

Miranda

Braverman

Wei

et al. 2011

Volume 8: Seismic Engineering

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The licensing framework established by the U.S. Nuclear Regulatory Commission under Title 10 of the Code of Federal Regulations (10 CFR) Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants,” provides requirements for standard design certifications (DCs) and combined license (COL) applications. The intent of this process is the early resolution of safety issues at the DC application stage. Subsequent COL applications may incorporate a DC by reference. Thus, the COL review will not reconsider safety issues resolved during the DC process. However, a COL application that incorporates a DC by reference must demonstrate that relevant site-specific design parameters are confined within the bounds postulated by the DC, and any departures from the DC need to be justified. This paper provides an overview of structural design challenges encountered in recent DC applications under the 10 CFR Part 52 process, in which the authors have participated as part of the safety review effort.

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Section: Combination Of Structural Responses Caused By Three Directiomentioning

confidence: 99%

Section: Combination Of Structural Responses Caused By Three Directiomentioning

confidence: 99%

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Structural Design Challenges in Design Certification Applications for New Reactors

Miranda

Braverman

Wei

et al. 2011

Volume 8: Seismic Engineering

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“…Instead, the envelope bounds s (t) in an average sense; thus, excursions of s (t) beyond the envelope are expected. The accuracy of the elliptical envelope deÿned by (20) and (21) is examined in Reference [4].…”

Section: Figure 3 Elliptical Envelope Bounding S (T) = [ (T); (T)]mentioning

confidence: 99%

A response‐spectrum‐based envelope for Mohr's circle

Menun

2003

Earthq Engng Struct Dyn

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SUMMARYMohr's circle is commonly used to determine the combinations of normal and shear stresses that act in any direction at a location of interest within a structure. During an earthquake, the radius and center of Mohr's circle naturally uctuate with time. In such cases, an envelope that bounds the time-varying realizations of Mohr's circle at a given location is desirable to facilitate the identiÿcation of critical combinations of normal and shear stresses at that location. In this paper, a response-spectrum-based procedure for predicting the envelope that bounds Mohr's circle in a linear-elastic structure subjected to seismic loads is developed. The accuracy of the proposed envelope is evaluated by comparing it to the results of time-history analyses performed on a concrete gravity dam using simulated and recorded ground motions. It is found that the proposed envelope has a level of accuracy that is commensurate with its response spectrum bases. The largest observed di erence between the simulated and predicted envelopes is less than 10%.

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“…It should be pointed out that, although not prescribed in ASCE 4-98 and RG 1.92, there have been other methods developed for spatial response combination, some of which are more recent and potentially more advanced and accurate. For example, the original complete quadratic combination (CQC) rule [8,9] for modal response combination has been extended to a new method called CQC3 [6,[10][11][12][13][14][15], to combine modal responses due to the three orthogonal earthquake components. These more advanced combination methods are not evaluated in this paper.…”

Section: Introductionmentioning

confidence: 99%