Seismic analysis of safety-related nuclear structures pdf

Seismic analysis of safetyrelated nuclear structures the. Seismic analysis of safetyrelated nuclear structures, standard ascesei 416, presents the analytical framework to develop a riskinformed approach to the. His absence from committee deliberations and vigorous discussions is, and will be, sadly missed. The structures covered by the code include concrete structures inside and outside the containment system. Sep 01, 2020 the influence analysis of the site condition is a key issue considered in the seismic design of nuclear power engineering on nonrock sites.

Ascesei 416, seismic analysis of safetyrelated nuclear structures. Pdf seismic performancebased evaluation of nuclear. Nuclear power plant items in seismic category iv should be designed as a minimum in accordance with national practice for non nuclear applications, and therefore for facilities at conventional risk. Seismic analysis of safetyrelated nuclear structures and. Whittaker2 and nicolas luco3 1 school of civil and environmental engineering, nanyang technological university, n101c76, 50 nanyang ave. Since then, engineers have adopted a more comprehensive approach to design known as probabilistic seismic hazard analysis psha. Seismic category 4 should include all items that are not in seismic category 1 or 2 or 3. Similar information is provided by the seismic margin analysis, which. Ascesei 42016 seismic analysis of safetyrelated nuclear.

Seismic analysis of safetyrelated nuclear structures provides requirements to determine the reliability of safetyrelated nuclear structures under earthquake motions. The revised standard will reflect the stateoftheart approaches for determining seismic demands on nuclear safetyrelated structures, systems and components. Asce416, seismic analysis of safetyrelated nuclear structures. Seismic analysis of safetyrelated nuclear structures and commentary. Asce 416 seismic analysis of safetyrelated nuclear. Pdf seismic isolation of safetyrelated nuclear structures. The aircraft impact often governs the cross section and reinforcement design of the external envelope of any new build safety related nuclear structure however, compared to seismic loading and all other external natural and man. The american society of civil engineers standard 4 asce 4 has been the main guidance document for the seismic analysis of the nuclear safetyrelated.

The report provides recommendations on a revised model for seismic hazard assessments, on minimum requirements for seismic analysis of safetyrelated nuclear structures in sweden as well as some recommendations for new structural design or redesign of existing structures. Update of asce standard 4 seismic analysis of safetyrelated. The benefit of base isolation has been presented in terms of. Apr 16, 2017 prepared by the task committee on dynamic analysis of nuclear structures of the seismic analysis of safetyrelated nuclear structures standards committee of the codes and standards activities division of the structural engineering institute of asce seismic analysis of safetyrelated nuclear structures, standard ascesei 416, presents the analytical framework to develop a riskinformed. Psha estimates the likelihood that various levels of ground motion will be exceeded at a given location in a given future time period. A squat wall is defined herein as a wall with a heighttolength or h wl w of 2 or less. American society of civil engineers 2000 seismic analysis of safety related nuclear structures and commentary. Sep 20, 2010 seismic or base isolation is a proven technology for reducing the effects of earthquake shaking on buildings, bridges and infrastructure. With this book, readers will gain proficiencies in the following. Oecd seminar prague 2011 nuclear energy agency nea. Request pdf seismic isolation of safetyrelated nuclear structures the forthcoming update of asce 4 includes expanded provisions for analysis, design of seismically isolated nuclear structures.

Fragility functions for seismic performance assessment of. Thus, the seismic safety of the bridge is a critical matter. Seismic analysis and design of equipment springerlink. Nuclear power plant design and seismic safety considerations anthony andrews. Jul 07, 2019 seismic analysis of safetyrelated nuclear structures and commentary asce 4. Seismic isolation of safetyrelated nuclear structures. To study the soil structure interaction ssi effect of the site conditions on the structural seismic response of nuclear power engineering, we used a cap1400 nuclear power plant as a case study subject and performed a shake table testing of a soil. Seismic isolation of nuclear power plants sciencedirect. Minimum design loads for buildings and other structures. Prepared by the task committee on dynamic analysis of nuclear structures of the seismic analysis of safetyrelated nuclear structures standards committee.

Standard ascesei 416, presents the analytical framework to develop a riskinformed approach to the design of nuclear structures under earthquake motions. This standard is intended for use in the seismic analysis of all safetyrelated structures of nuclear facilities, including but not limited to above and below ground. Seismic analysis of safel related nuclear structur and commentary on. Seismic analysis of safety related nuclear structures and commentary. This document is applicable to both surface and subsurface. Soil structure interaction modeling and analysis 6. It provides criteria to develop calculated responses that have a specified likelihood of being exceeded conditional on the design basis earthquake shaking. The riskinformed design philosophy that underpinned development of the technical basis for both of these documents led to a set of proposed performance objectives and acceptance criteria that was developed to serve as the foundation. Asce4, seismic analysis of safetyrelated nuclear structures and commentary, is a consensus national standard developed by the american society of civil.

Seismic analysis for nuclear power safety related bridge. Nuclear power plants in the past have been designed using essentially. A link between fema356 evaluation acceptance criteria in terms of deo1020 risk. Nuclear power plant design and seismic safety considerations. Pdf seismic performance assessment of baseisolated safety. Standard ascesei 416 provides requirements to ensure the reliability of nuclear facilities under earthquake motions, focusing on analysis to obtain response information.

Standard for seismic ani safety related nuclear s, september 1986 i u docketed usnrc 2003 jan ant 10. Seismic analysis of safetyrelated nuclear structures, standard ascesei 416, presents the analytical framework to develop a riskinformed approach to the design of nuclear structures under earthquake motions. Intended to complement asce 43, this standard addresses the seismic analysis of new and existing facilities. The riskinformed design philosophy that underpinned development of the technical basis for both of these documents led to a set of proposed performance objectives and acceptance.

Assessment of baseisolated nuclear structures for design and. This paper presents fragility curves for squat reinforced concrete walls, which are important structural components in npps and other safetyrelated nuclear structures. Asce 416, 2017 edition, 2017 seismic analysis of safetyrelated nuclear structures types of structures covered by this standard. Download pdf soil structure interaction in seismic analysis. Asce 498, seismic analysis of safetyrelated nuclear structures and commentary asce 2000 and asce 4305, seismic design criteria for structures, systems and components in nuclear facilities asce 2005. Cost and riskbased design optimization of safetyrelated nuclear structures. Because of the potential risk with nuclear hazards, nuclear facilities need to have a much lower probability than conventional facilities of sustaining structural. Asce 498 seismic analysis of safetyrelated nuclear structures building code requirements for masonry structures aci 53002asce 502tms 40202 and specifications for masonry structures aci 530. Update of asce standard 4 seismic analysis of safety. Seismic analysis of safety related nuclear structures book description.

This standard is intended for use in the seismic analysis of all safety related structures of nuclear facilities, including but not limited to above and belowground. Responsibility american society of civil engineers. Prepared by the task committee on dynamic analysis of nuclear structures of the seismic analysis of safety related nuclear structures standards committee. Verification of numerical models for seismic fluid. Regulatory gaps and challenges for licensing advanced. Seismic safety analysis and upgrading of operating nuclear. This knowledge can be very useful for the planning of the postevent inspections. Analysis, modelling, probabilistic, response, seismic, soil structure interaction. Severe failure consequence associated with nuclear facility structures preclude direct application of seismic performancebased evaluation procedures developed for existing conventional structures. Seismic isolation of safetyrelated nuclear structures a. Click here to purchase the full version from the ansi store. American society of civil engineers 2000 seismic analysis of safetyrelated nuclear structures and commentary. Johns seminal contributions to the seismic engineering of safetyrelated nuclear structures. Pdf seismic performance assessment of baseisolated.

Oct 01, 2014 seismic isolation is a viable strategy for protecting safetyrelated nuclear structures from the effects of moderate to severe earthquake shaking but it has not been widely adopted because of limited nuclear construction in the past 30 years and a lack of guidelines, codes and standards for the analysis, design and construction of isolation. Seismic analysis of safetyrelated nuclear structures. Cost and riskbased design optimization of safetyrelated. Provides requirements for ascr analyses of new structure design or existing structure evaluation to determine the reliability of structures under earthquake motions. Pdf seismic analysis of structures download full ebooks.

As seismologists describe seismic excitation in terms of the seismic motion of certain control point at the free surface of the initial site, the question is whether the same point of the structure after structure appears will have the same seismic response motion in case of the same seismic event. Kennedy4 1 university of buffalo, state university of new york, red jacket quadrangle, buffalo, ny, 14261. The standard also outlines the rules and analysis parameters that are expected to produce seismic responses with about the same probability of nonexceedance as the input. Pdf english, hardcopy english more info on product formats. Seismic analysis of safetyrelated nuclear structures american society of civil engineers. Seismic analysis of safety related nuclear structures, standard ascesei 416, presents the analytical framework to develop a riskinformed approach to the. Oct 31, 2019 seismic analysis of safetyrelated nuclear structures asce 498 40433 should you need any further information, please do not hesitate to contact mei am happy to help you. Download pdf soil structure interaction in seismic. Soil structure interaction ssi is an important phenomenon in the seismic response analysis. Seismic analysis of safetyrelated nuclear structures provides requirements to determine the reliability of safetyrelated nuclear structures under earthquake. Periodic evaluation of structures in nuclear facilities is imperative to insure such structures remain safe. Seismic analysis of safetyrelated nuclear structures 416 asce. For example, a system of technical water should be included in this class.

Seismic design criteria for structures, systems, and. Seismic design criteria for structures, systems, and components in nuclear facilities provides stringent design criteria for multiple aspects associated with nuclear facilities. Seismic analysis of safety related nuclear structures provides requirements to determine the reliability of safety related nuclear structures under earthquake. Asce4, seismic analysis of safety related nuclear structures and commentary, is a consensus national standard developed by the american society of civil. Asce seismic analysis of safetyrelated nuclear structures. Assessment of baseisolated nuclear structures for design. Seismic isolated structures appendix a seismic pra. The american society of civil engineers standard 4 asce 4 has been the main guidance document for the seismic analysis of the nuclear safety related. Effect of soilstructure interaction on the seismic. Asce 4 98 seismic analysis of safety related nuclear. This document is expected to become the definitive source for seismic analysis in the nuclear industry and resolve many outstanding controversial issues.

Jan, 2021 seismic design, qualification, and risk assessment of such reactors must consider fluid. Seismic analysis of safetyrelated nuclear structures 498. This bridge inside the nuclear power plants will serve as an important emergency evacuation route and as an access port for rescue operations in the power plant under potential accident conditions. Jul 25, 2019 seismic analysis of safetyrelated nuclear structures and commentary asce 4. This standard is intended for use in the seismic analysis of all safetyrelated structures of nuclear facilities, including but not limited to above and belowground structures, buried piping, vertical liquid storage tanks, distribution systems, anchored and unanchored components, and structures with seismic isolation systems. This standard is applicable to analyses of new structure design or evaluations of existing structures. Asce 416, 2017 edition, 2017 seismic analysis of safety related nuclear structures. Asce 498 seismic analysis of safety related nuclear structures and commentary asce 4305 seismic design criteria for structures, systems, and components in nuclear facilities european utility requirements for lwr nuclear power, volume 2 chapter 4 design basis, 2. Seismic analysis of soilstructure system of nuclear power. While numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. Nov 30, 2020 for the first time in chinas nuclear power industry, an inplant emergency access bridge is proposed to be constructed.

This standard is intended for use in the seismic analysis of all safety related structures of nuclear facilities, including but not limited to above and belowground structures, buried piping, vertical liquid storage tanks, distribution systems, anchored and unanchored components, and structures with seismic isolation systems. Applicant exhibit xx nuclear regulatory commission. Seismic analysis of safetyrelated nuclear structures 416. Three performance statements aiming at achieving the objectives of asce 4305, seismic design criteria for structures, systems and components in nuclear facilities, are assessed in the study. This standard is intended for use in the seismic analysis of all safetyrelated structures of nuclear facilities, including but not limited to above and belowground structures, buried piping, vertical liquid storage tanks, distribution systems, anchored and. Seismic analysis of safetyrelated nuclear structures standards.