ASCE Standard 4 2016:2017 Edition

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ASCE Standard 4: Seismic Analysis of Safety-Related Nuclear Structures

Published By	Publication Date	Number of Pages
ASCE	2017	204

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Category: ASCE

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Description

Prepared by the Task Committee on Dynamic Analysis of Nuclear Structures of the Seismic Analysis of Safety-Related Nuclear Structures Standards Committee of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE Seismic Analysis of Safety-Related Nuclear Structures, Standard ASCE/SEI 4-16, presents the analytical framework to develop a risk-informed 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. It provides criteria to develop calculated responses that have a specified likelihood of being exceeded conditional on the design basis earthquake shaking. Topics include:

Modeling of structures, including material properties, stiffness, mass, damping, hydrodynamic effects, and dynamic coupling criteria;
Analysis methods, including linear response–history, linear response–spectrum, frequency domain, equivalent static, multistep, nonlinear response–history, approximate inelastic response–spectrum, and nonlinear static;
Soil–structural interaction modeling and analysis, including probabilistic approaches;
Input for subsystem analysis, including in-structure response spectra, in-structure time series, characteristics for coupled subsystem analysis, and subsystem damping values; and
A variety of specific applications, including buried pipes and conduits, dynamic soil pressures on walls, vertical liquid storage tanks, distribution systems, dynamic sliding and uplift analysis, and seismically isolated structures.

This standard also includes two nonmandatory appendixes and extensive commentary on applying the provisions. Appendix B is new and offers information on nonlinear, time-domain soil–structure interaction analysis. ASCE/SEI 4-16 has been thoroughly revised and expanded to update the previous version, ASCE 4-98. Used in conjunction with the companion standard, Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities, ASCE/SEI 43, this standard provides critical information for structural design engineers, safety engineers, nuclear facility managers and operating personnel, and government regulators.

PDF Catalog

PDF Pages	PDF Title
8	CONTENTS
20	PREFACE
22	ACKNOWLEDGMENTS
24	ABBREVIATIONS AND NOTATION
30	DEFINITIONS
34	1.1.2.1 Types of Structures Covered by This Standard 1.1.2.2 FoundationMaterial Stability
37	References for Attachment 1A
62	Reference
85	References for Attachment 10A
92	References for Attachment 11A
94	12 SEISMICALLY ISOLATED STRUCTURES 12.1 Introduction 12.2 General Requirements 12.2.1 Isolation System 12.2.1.1 General 12.2.1.2 Vertical Load Resistance 12.2.1.3 Minimum Lateral Restoring Force 12.2.1.4 Wind Loads
95	12.2.1.5 Operating Conditions 12.2.1.6 Inspection and Replacement 12.2.2 Isolators 12.2.2.1 Mechanical Properties 12.2.2.2 Quality Assurance 12.2.3 Basemat and Foundation Designs
96	12.3 Seismic Input 12.4 Dynamic Analysis 12.4.1 Methods of Analysis 12.4.1.1 General 12.4.1.2 Time-Domain Solution 12.4.1.3 Frequency-Domain Solution 12.4.1.4 Multistep Solution
97	12.4.2 Mathematical Modeling 12.4.2.1 General 12.4.2.2 Mathematical Models of Isolators 12.4.2.3 Equivalent Linear Models of Isolators 12.4.2.4 Nonlinear Models of Isolators 12.5 Displacements and Forces for Design 12.5.1 General
98	12.5.2 Seismic Isolators 12.5.3 Stop 12.5.4 Structures, Systems, and Components above the Isolation Interface 12.5.5 Structure below the Isolation Interface 12.5.6 Systems and Components Crossing the Isolation Interface 12.6 Peer Review 12.7 Testing of Prototype and Production Isolators 12.7.1 General 12.7.2 Prototype Testing 12.7.2.1 Test Specimens 12.7.2.2 Record 12.7.2.3 Sequence and Cycles 12.7.2.4 Test Specimen Adequacy
99	12.7.3 Production Testing 12.7.3.1 Test Specimens 12.7.3.2 Record 12.7.3.3 Sequence and Cycles 12.7.3.4 Test Specimen Adequacy
106	References
110	References
112	COMMENTARY
115	References
121	References
130	References
139	References
162	References
170	References
173	References
175	References
180	References
184	References
192	References
200	References
202	INDEX