NZS 1170.5 Supp 1:2004
Structural design actions - Part 5: Earthquake actions - New Zealand Commentary
Provides background to the various provisions in NZS 1170.5:2004, suggests approaches that may satisfy the intent of the Standard and, if appropriate, describes differences between this and previous editions of the Standard. References are provided for further reading and these are given at the end of each section of the Commentary.
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NZS 1170.5 Supp 1:2004 STRUCTURAL DESIGN ACTIONS – EARTHQUAKE ACTIONS – NEW ZEALAND COMMENTARY
PREFACE
CONTENTS
SECTION C1 SCOPE AND GENERAL
C1.1 SCOPE
C1.2 DETERMINATION OF EARTHQUAKE ACTIONS
C1.3 LIMIT STATES
C1.4 SPECIAL STUDIES
C1.5 REFERENCED DOCUMENTS
SECTION C2 VERIFICATION
C2.1 GENERAL REQUIREMENTS
C2.2 STRUCTURAL TYPES
C2.3 ULTIMATE LIMIT STATE VERIFICATION
C2.4 SERVICEABILITY LIMIT STATE VERIFICATION
C2.5 DEFORMATION CONTROL
C2.6 STRUCTURE PARTS
C2.7 PRIMARY AND SECONDARY SEISMIC MEMBERS
SECTION C3 SITE HAZARD SPECTRA
C3.1 ELASTIC SITE SPECTRA FOR HORIZONTAL LOADING
C3.2 SITE HAZARD SPECTRA FOR VERTICAL LOADING
SECTION C4 STRUCTURAL CHARACTERISTICS
C4.1 PERIOD OF VIBRATION
C4.2 SEISMIC WEIGHT AND SEISMIC MASS
C4.3 STRUCTURAL DUCTILITY FACTOR
C4.4 STRUCTURAL PERFORMANCE FACTOR, Sp
C4.5 STRUCTURAL IRREGULARITY
SECTION C5 DESIGN EARTHQUAKE ACTIONS
C5.1 GENERAL
C5.2 HORIZONTAL DESIGN ACTION COEFFICIENTS AND DESIGN SPECTRA
C5.3 APPLICATION OF DESIGN ACTIONS
C5.4 VERTICAL DESIGN ACTIONS
C5.5 GROUND MOTION RECORDS FOR TIME HISTORY ANALYSES
C5.6 CAPACITY DESIGN
C5.7 DIAPHRAGMS
APPENDIX A TO C5.7 – RECOMMENDATIONS FOR DETERMINING SEISMIC FORCES IN DIAPHRAGMS
SECTION C6 STRUCTURAL ANALYSIS
C6.1 GENERAL
C6.2 EQUIVALENT STATIC METHOD
C6.3 MODAL RESPONSE SPECTRUM METHOD
C6.4 NUMERICAL INTEGRATION TIME HISTORY METHOD
C6.5 P-DELTA EFFECTS
C6.6 ROCKING STRUCTURES AND STRUCTURAL ELEMENTS
SECTION C7 EARTHQUAKE INDUCED DEFLECTIONS
C7.1 GENERAL
C7.2 DETERMINATION OF DESIGN HORIZONTAL DEFLECTIONS
C7.3 DETERMINATION OF DESIGN INTER-STOREY DEFLECTION
C7.4 HORIZONTAL DEFLECTION LIMITS
C7.5 INTER-STOREY DEFLECTION LIMITS
SECTION C8 REQUIREMENTS FOR PARTS AND COMPONENTS
C8.1 GENERAL
C8.2 DESIGN RESPONSE COEFFICIENT FOR PARTS AND COMPONENTS
C8.3 FLOOR HEIGHT COEFFICIENT, CHi
C8.4 PART OR COMPONENT SPECTRAL SHAPE COEFFICIENT
C8.5 DESIGN ACTIONS ON PARTS AND COMPONENTS
C8.6 PART OR COMPONENT RESPONSE FACTOR Cph
C8.7 CONNECTIONS
C8.8 PARTS AND COMPONENTS SUPPORTED ON LEDGES
C8.9 SPECIAL STUDIES
APPENDIX CA COMMENTARY ON APPENDIX A - DEFINITIONS
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Related Information
Best Practice Guideline For Scaffolding In New Zealand
Ministry: Scaffolding and Rigging New Zealand
Section: 1.2.2.3
Citation context:Where appropriate, the environmental loads shall include the following: …Earthquake loads in accordance with AS/NZS 1170 (and supplements).
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NZS 1170.5 Supp 1:2004 STRUCTURAL DESIGN ACTIONS – EARTHQUAKE ACTIONS – NEW ZEALAND COMMENTARY
PREFACE
CONTENTS
SECTION C1 SCOPE AND GENERAL
C1.1 SCOPE
C1.2 DETERMINATION OF EARTHQUAKE ACTIONS
C1.3 LIMIT STATES
C1.4 SPECIAL STUDIES
C1.5 REFERENCED DOCUMENTS
SECTION C2 VERIFICATION
C2.1 GENERAL REQUIREMENTS
C2.2 STRUCTURAL TYPES
C2.3 ULTIMATE LIMIT STATE VERIFICATION
C2.4 SERVICEABILITY LIMIT STATE VERIFICATION
C2.5 DEFORMATION CONTROL
C2.6 STRUCTURE PARTS
C2.7 PRIMARY AND SECONDARY SEISMIC MEMBERS
SECTION C3 SITE HAZARD SPECTRA
C3.1 ELASTIC SITE SPECTRA FOR HORIZONTAL LOADING
C3.2 SITE HAZARD SPECTRA FOR VERTICAL LOADING
SECTION C4 STRUCTURAL CHARACTERISTICS
C4.1 PERIOD OF VIBRATION
C4.2 SEISMIC WEIGHT AND SEISMIC MASS
C4.3 STRUCTURAL DUCTILITY FACTOR
C4.4 STRUCTURAL PERFORMANCE FACTOR, Sp
C4.5 STRUCTURAL IRREGULARITY
SECTION C5 DESIGN EARTHQUAKE ACTIONS
C5.1 GENERAL
C5.2 HORIZONTAL DESIGN ACTION COEFFICIENTS AND DESIGN SPECTRA
C5.3 APPLICATION OF DESIGN ACTIONS
C5.4 VERTICAL DESIGN ACTIONS
C5.5 GROUND MOTION RECORDS FOR TIME HISTORY ANALYSES
C5.6 CAPACITY DESIGN
C5.7 DIAPHRAGMS
APPENDIX A TO C5.7 – RECOMMENDATIONS FOR DETERMINING SEISMIC FORCES IN DIAPHRAGMS
SECTION C6 STRUCTURAL ANALYSIS
C6.1 GENERAL
C6.2 EQUIVALENT STATIC METHOD
C6.3 MODAL RESPONSE SPECTRUM METHOD
C6.4 NUMERICAL INTEGRATION TIME HISTORY METHOD
C6.5 P-DELTA EFFECTS
C6.6 ROCKING STRUCTURES AND STRUCTURAL ELEMENTS
SECTION C7 EARTHQUAKE INDUCED DEFLECTIONS
C7.1 GENERAL
C7.2 DETERMINATION OF DESIGN HORIZONTAL DEFLECTIONS
C7.3 DETERMINATION OF DESIGN INTER-STOREY DEFLECTION
C7.4 HORIZONTAL DEFLECTION LIMITS
C7.5 INTER-STOREY DEFLECTION LIMITS
SECTION C8 REQUIREMENTS FOR PARTS AND COMPONENTS
C8.1 GENERAL
C8.2 DESIGN RESPONSE COEFFICIENT FOR PARTS AND COMPONENTS
C8.3 FLOOR HEIGHT COEFFICIENT, CHi
C8.4 PART OR COMPONENT SPECTRAL SHAPE COEFFICIENT
C8.5 DESIGN ACTIONS ON PARTS AND COMPONENTS
C8.6 PART OR COMPONENT RESPONSE FACTOR Cph
C8.7 CONNECTIONS
C8.8 PARTS AND COMPONENTS SUPPORTED ON LEDGES
C8.9 SPECIAL STUDIES
APPENDIX CA COMMENTARY ON APPENDIX A - DEFINITIONS
NZS 1170.5 Supp 1:2004
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.