DOCSLIB.ORG

GNS Science Consultancy Report 2015/186 October 2017

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
GNS Science Consultancy Report 2015/186 October 2017 Assessment of liquefaction risk in the Hawke's Bay Volume 1: The liquefaction hazard model BJ Rosser and S Dellow (compilers) GNS Science Consultancy Report 2015/186 October 2017 DISCLAIMER This report has been prepared by the Institute of Geological and Nuclear Sciences Limited (GNS Science) exclusively for and under contract to Hawke’s Bay Regional Council. Unless otherwise agreed in writing by GNS Science, GNS Science accepts no responsibility for any use of or reliance on any contents of this report by any person other than Hawke’s Bay Regional Council and shall not be liable to any person other than Hawke’s Bay Regional Council, on any ground, for any loss, damage or expense arising from such use or reliance. Use of Data: Date that GNS Science can use associated data: October 2017 BIBLIOGRAPHIC REFERENCE Rosser BJ, Dellow GD, compilers. 2017. Assessment of liquefaction risk in the Hawke's Bay Volume 1: The liquefaction hazard model. Lower Hutt (NZ): GNS Science. 108 p. (GNS Science consultancy report; 2015/186). AUTHORS John Begg (GNS Science) Julia Becker (GNS Science) Rob Buxton (GNS Science) Sally Dellow (GNS Science) Sharn Hainsworth (Landcare Research) Andrew King (GNS Science) Virginie Lacrosse (Tonkin &Taylor Ltd.) Rob Langridge (GNS Science) Julie Lee (GNS Science) Sheng-Lin Lin (GNS Science) Iain Matcham (GNS Science) Mostafa Nayyerloo (GNS Science) Zara Rawlinson (GNS Science) Brenda Rosser (GNS Science) Wendy Saunders (GNS Science) Sjoerd van Ballegooy (Tonkin &Taylor Ltd.) Project Number 430W4083-00 Final 2017 CONTENTS EXECUTIVE SUMMARY ..................................................................................................... VII 1.0 INTRODUCTION ........................................................................................................1 1.1 PROJECT PURPOSE AND BACKGROUND .............................................................. 1 1.2 SCOPE..............................................................................................................2 2.0 BACKGROUND INFORMATION ................................................................................ 3 2.1 THE LIQUEFACTION PHENOMENON ..................................................................... 3 2.2 THE LIQUEFACTION PROCESS ............................................................................ 3 2.3 THE LIQUEFACTION VULNERABILITY ASSESSMENT PROCESS ............................... 4 2.3.1 Liquefaction Susceptibility ..................................................................................4 2.3.2 Liquefaction Triggering .......................................................................................5 2.3.3 Liquefaction Vulnerability ...................................................................................5 2.4 HISTORIC LIQUEFACTION IN HAWKE’S BAY ........................................................ 13 2.5 PREVIOUS LIQUEFACTION HAZARD STUDIES IN HAWKE’S BAY ............................ 16 3.0 DATASETS .............................................................................................................. 21 3.1 UNCONFINED GROUNDWATER SURFACE DATA .................................................. 21 3.2 SUB-SURFACE GEOLOGY ................................................................................. 24 3.3 GEOMORPHOLOGY .......................................................................................... 28 3.4 HISTORICAL OBSERVATIONS ............................................................................ 30 3.5 GEOTECHNICAL DATASETS .............................................................................. 32 4.0 GROUNDWATER MODEL ....................................................................................... 35 5.0 SEISMICITY AND EARTHQUAKE SHAKING .......................................................... 41 5.1 MAGNITUDE FOR TARGET RETURN PERIODS ..................................................... 42 5.2 PEAK GROUND ACCELERATION FOR TARGET RETURN PERIODS ......................... 43 6.0 LIQUEFACTION HAZARD MAPPING METHODOLOGY ......................................... 47 6.1 HERETAUNGA PLAINS ...................................................................................... 47 6.1.1 Geomorphic Zoning ......................................................................................... 47 6.1.2 Liquefaction Susceptibility ............................................................................... 49 6.1.3 Liquefaction Triggering .................................................................................... 56 6.1.4 Liquefaction Vulnerability ................................................................................ 58 6.2 WAIROA .......................................................................................................... 65 6.2.1 Geomorphic Zoning ......................................................................................... 65 6.3 CENTRAL HAWKE’S BAY ................................................................................... 70 6.3.1 Geomorphic Zoning ......................................................................................... 70 6.4 HASTINGS DISTRICT ........................................................................................ 75 7.0 LIQUEFACTION HAZARD MAPPING RESULTS .................................................... 79 7.1 HERETAUNGA PLAINS ...................................................................................... 79 8.0 LIQUEFACTION HAZARD PLANNING MAPS ......................................................... 85 8.1 HERETAUNGA PLAINS ...................................................................................... 85 GNS Science Consultancy Report 2015/186 i Final 2017 8.2 WAIROA .......................................................................................................... 88 8.3 CENTRAL HAWKE’S BAY ................................................................................... 90 8.4 HASTINGS DISTRICT ........................................................................................ 92 9.0 DIFFERENCES COMPARED TO THE 1999 MAP ................................................... 95 9.1 HERETAUNGA PLAINS ...................................................................................... 95 9.2 WAIROA DISTRICT ........................................................................................... 96 9.3 CENTRAL HAWKE’S BAY DISTRICT .................................................................... 96 9.4 HASTINGS DISTRICT (BEYOND THE HERETAUNGA PLAINS) .................................. 97 10.0 CONSTRAINTS ON USING THE LIQUEFACTION PLANNING MAPS .................... 99 11.0 CONCLUSIONS ..................................................................................................... 101 11.1 RECOMMENDATIONS ...................................................................................... 102 11.1.1 Data Quality and Quantity (all areas) ............................................................ 102 11.1.2 Heretaunga Plains ......................................................................................... 102 11.1.3 Central Hawke’s Bay District ......................................................................... 103 11.1.4 Wairoa District ............................................................................................... 103 11.1.5 Hastings District (beyond the Heretaunga Plains) ........................................ 103 12.0 ACKNOWLEDGEMENTS ....................................................................................... 105 13.0 GLOSSARY ............................................................................................................ 107 14.0 REFERENCES ....................................................................................................... 111 ii GNS Science Consultancy Report 2015/186 Final 2017 FIGURES Figure 2.1 Schematic representation of liquefaction and its effects ............................................................... 6 Figure 2.2 Liquefaction ejecta (sand boils) in Kaiapoi approximately 45 kilometres from the epicentre of the magnitude 7.1, 4 September 2010 Darfield earthquake. .............................................................. 7 Figure 2.3 Liquefaction ejecta in a suburban Christchurch Street. In the suburb of Bexley, approx. 10 km from the epicentre after the magnitude 6.3 Christchurch earthquake of 22 February 2011. ......... 7 Figure 2.4 Buoyancy of a pump-station floated up to 500 mm out of the ground by liquefaction adjacent to the Avon River near the eastern end of Morris Street, approx. 10 km form the epicentre after the magnitude 6.3 Christchurch earthquake of 22 February 2011. ..................................................... 8 Figure 2.5 Lateral spreading fissures run parallel to the Avon River in Avonside Drive, Christchurch, approx. 10 km from the epicentre after the magnitude 6.3 Christchurch earthquake of 22 February 2011. ............................................................................................................................. 8 Figure 2.6 Compression-induced buckling of a bridge over the Avon River near Medway Street due to lateral spreading displacement of the abutments approx. 10 km form the epicentre after the magnitude 6.3 Christchurch earthquake of 22 February 2011. ..................................................... 9 Figure 2.7 Liquefaction-induced lateral spreading through the foundation of a house in Kaiapoi approximately 45 kilometres from the epicentre of the
Load more

Recommended publications
  • Regional Public Transport Plan 2019 - 2029 Draft
    REGIONAL PUBLIC TRANSPORT PLAN 2019 - 2029 DRAFT APRIL 2019 1 REGIONAL PUBLIC TRANSPORT PLAN 2019 - 2029 FOREWORD FROM REGIONAL TRANSPORT COMMITTEE CHAIR Public transport in Hawke’s Bay has been transformed over the last ten years. Thanks to increased funding from Hawke’s Bay Regional Council and the New Zealand Transport Agency, we now have services which increasingly meet the transport needs of many of our residents. As a result, many more people are using our goBay bus and Total Mobility services than in the early 2000s. However, as for most of regional New Zealand, bus patronage has declined since its peak in 2014, due to lower fuel prices and increased car ownership. There is much to be done to reverse this trend, broaden our range of passengers, provide services over a wider area and utilise new technologies to improve service provision and information. At present, the private motor vehicle is still the main transport choice for most of the region’s residents and if we are to make the best use of our existing transport networks, minimise transport emissions and avoid further costly increases in capacity, we need to convince many more people to choose public transport at least occasionally. Hawke’s Bay Regional Council, in conjunction with its funding partners, intends to meet this challenge with a range of activities spelt out in this draft plan, as well as continuing to provide current levels of bus and Total Mobility services. Councillor Alan Dick Chairman Regional Transport Committee 1 REGIONAL PUBLIC TRANSPORT PLAN 2019 - 2029
    [Show full text]
  • TE WHANGANUI a OROTU (The Napier Inner Harbour)
    WAI55 TE WHANGANUI A OROTU (The Napier Inner Harbour) TE WHANGANUI A OROTU FROM THE HILL, NAPIER by C. D. BARRAUD : 1866 TRADITIONAL USE AND ENVIRONMENTAL CHANGE A Report to the Waitangi Tribunal by Patrick Parsons: May 1992 WAr 55 TE WHANGANUI-A-OROTU: TRADITIONAL USE AND ENVIRONMENTAL CHANGE A Report to the Waitangi Tribunal by Patrick Parsons DAETEWOl Sketch of Napier - 1858 looking east along Carlyle Street Pukemokimoki Hill is on the right - 2 - I N D E X PART A · PRE-1851 SETTLEMENT · · · · · · · · · · · · 3 l. PUKEMOKIMOKI · · · · · · · · · · · · · 3 2 . KOUTUROA, TIHERUHERU AND OHUARAU · · · 6 3. THE ISLAND PAS - TE IHO 0 TE REI, OTAIA AND OTIERE . · · · · · · · · · · · · · 11 4. TE PAKAKE 14 5. TUTERANUKU · · · · · · · · 18 6. RETURN FROM EXILE . 1840-1845 · · · · · · 18 7 . OCCUPATION IN COLENSO'S DAY . 1845-1852 · · · 20 8. CONCLUSION · · · · · · · · · · · · · · · · · · 24 PART B: ORAL ACCOUNTS OF TRADITIONAL CUSTOMS · · · · · · · 25 l. INTRODUCTION · · · · · · · · · · · · · · · · · 25 2. THE OBSERVATION OF MAORI CUSTOM WHILE GATHERING KAIMOANA · · · · · · · · · · · · · · 25 3. OBSERVATION OF TRIBAL FISHING ZONES · · · 28 4. KAIMOANA BOUNDARIES AND BOUNDARY MARKERS · 30 5. TYPES OF KAIMOANA GATHERED IN TE WHANGANUI- A-OROTU · · · · · · · · · · · · · · · 32 6. MORE MORE · · · · · · · · · · · · · · · 37 7 . HINEWERA, THE LADY FROM THE SEA · · · 41 ", PART C THE DECLINE OF RIGHTS TO TRADITIONAL FISHERIES / · AND ENVIRONMENTAL CHANGE · · · · · · · · · · · · 43 l. INTRODUCTION · · · · · · · · · · · · · 43 2 • DREDGING AND RECLAMATION · · · · · · · 48 3 . THE CAUSEWAY TO TARADALE · · · · · 50 4 . EFFECTS ON THE ECOLOGY · · · · · · · · 50 5. THE LOSS OF CANOE ACCESS AND LANDING PLACES 52 6. POLLUTION OF THE AHURIRI ESTUARY · · · · · 53 7 . THE IMPACT OF THE 1931 EARTHQUAKE · · · · · · 57 8. RIVER DIVERSION · · · · · · 58 9 . CONCLUSION · · · · · · · · · · · · 60 - 3 - TE WHANGANUI-A-OROTU : CUSTOMARY USAGE REPORT PART A : PRE-18S1 SETTLEMENT The issue of Te Whanganui-a-Orotu, the Napier Inner Harbour was precipitated by the Ahuriri Purchase of 1851.
    [Show full text]
  • Transpressional Rupture Cascade of the 2016 Mw 7.8
    PUBLICATIONS Journal of Geophysical Research: Solid Earth RESEARCH ARTICLE Transpressional Rupture Cascade of the 2016 Mw 10.1002/2017JB015168 7.8 Kaikoura Earthquake, New Zealand Key Points: Wenbin Xu1 , Guangcai Feng2, Lingsen Meng3 , Ailin Zhang3, Jean Paul Ampuero4 , • Complex coseismic ground 5 6 deformation can be explained by slip Roland Bürgmann , and Lihua Fang on six crustal fault segments 1 2 • Rupture process across multiple faults Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University, Hong Kong, China, School of 3 likely resulted from a triggering Geosciences and Info-Physics, Central South University, Changsha, China, Department of Earth Planetary and Space cascade between crustal faults Sciences, University of California, Los Angeles, CA, USA, 4Seismological Laboratory, California Institute of Technology, • Rupture speed was overall slow, but Pasadena, CA, USA, 5Department of Earth and Planetary Science, University of California, Berkeley, CA, USA, 6Institute of locally faster along individual fault segments Geophysics, China Earthquake Administration, Beijing, China Supporting Information: Abstract Large earthquakes often do not occur on a simple planar fault but involve rupture of multiple • Supporting Information S1 • Data Set S1 geometrically complex faults. The 2016 Mw 7.8 Kaikoura earthquake, New Zealand, involved the rupture of • Data Set S2 at least 21 faults, propagating from southwest to northeast for about 180 km. Here we combine space • Data Set S3 geodesy and seismology techniques to study subsurface fault geometry, slip distribution, and the kinematics of the rupture. Our finite-fault slip model indicates that the fault motion changes from predominantly Correspondence to: W. Xu, G. Feng, and L. Meng, right-lateral slip near the epicenter to transpressional slip in the northeast with a maximum coseismic surface [email protected]; displacement of about 10 m near the intersection between the Kekerengu and Papatea faults.
    [Show full text]
  • Napier Spatial Picture Napier City Council Contents
    Napier Spatial Picture Napier City Council Contents Prepared for 01 03 Setting the Scene Spatial Picture Napier City Council Prepared by 1.1 Background 3.1 Shared regional employment Barker & Associates 1.2 How it fits 3.2 Accessible and connected city Document date 1.3 Regional context 3.3 Residential intensification 18 June 2021 (Final) 20 July 2021 (Rev 1) 1.4 Local context 3.4 Evaluation of growth options 1.5 HPUDS 2017 3.5 Recommendations and next steps 1.6 Existing Plans and Strategies 04 Appendices 02 Spatial Analysis A - District Plan 2.1 Stakeholder engagement B - Challenges analysis mapping 2.2 Urban accessibility C - Opportunities analysis mapping 2.3 Influences on growth 2.4 Opportunities for growth Barker & 09 375 0900 | [email protected] | barker.co.nz Associates Contacts PO Box 1986, Shortland Street, Auckland 1140 | Level 4, Old South British Building 3-13, Shortland Street, Auckland Kerikeri | Whangarei | Auckland | Hamilton | Napier | Wellington | Christchurch | Queenstown Executive Summary Legend Residential greenfi eld growth This Spatial Picture identifi es Napier’s residential and employment growth opportunities. It pulls together the relevant information Potential greenfi eld expansion around Bayview from Napier’s statutory and non-statutory plans and policies, as well Industrial greenfi eld growth as insights from key stakeholders, and additional spatial analysis Development Constraints undertaken for this project. The Spatial Picture is the fi rst step Residential Intensifi cation in a wider Spatial Plan for Napier and Hastings and will support the City, Town and Local Centres upcoming Napier District Plan review. City Vision & Ahuriri Masterplan outcomes Lagoon Farm stormwater & ecology outcomes As growth happens, it will be important for Napier to retain the key qualities that make it a great place to live, including its unique Enhanced active travel connections Enhanced green/blue network to support active travel culture, heritage and natural beauty.
    [Show full text]
  • A Study of Earthquake and Tsunami Evacuation for Napier Hill, Napier, Aotearoa New Zealand
    Understanding residents’ capacities to support evacuated populations: A study of earthquake and tsunami evacuation for Napier Hill, Napier, Aotearoa New Zealand December 2019 Benjamin A. Payne Julia S. Becker Lucy H. Kaiser Intentionally left blank. Disaster Research Science Report 2019/01 2 ABSTRACT Due to a large regional subduction zone (the Hikurangi subduction zone) and localised faults, Napier City located on the East Coast of Aotearoa/New Zealand is vulnerable to earthquake and tsunami events. On feeling a long or strong earthquake people will need to evacuate immediately inland or to higher ground to avoid being impacted by a tsunami, of which the first waves could start to arrive within 20 minutes (based on the Hikurangi earthquake and tsunami scenario presented in Power et al., 2018). Napier Hill is one such area of higher land, and it is estimated that up to 12,000 people could evacuate there in the 20 minutes following a long or strong earthquake. To understand the capacity of Napier Hill residents to support evacuees, three focus groups were held with a diverse sample of residents from Napier Hill on 21 and 22 July 2019. A follow up email was sent to all participants a week after the focus groups, containing a link to a short six question survey, which was completed by 68 people, most of whom were additional to the focus group attendees. Data from the focus groups and the survey was analysed qualitatively using thematic analysis. The findings highlight that in general people were happy to host evacuees and offer support if they were in a position to do so.
    [Show full text]
  • Landslides Triggered by the MW 7.8 14 November 2016 Kaikoura Earthquake, New Zealand
    This is a repository copy of Landslides Triggered by the MW 7.8 14 November 2016 Kaikoura Earthquake, New Zealand. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/128042/ Version: Accepted Version Article: Massey, C, Petley, D.N., Townsend, D. et al. (25 more authors) (2018) Landslides Triggered by the MW 7.8 14 November 2016 Kaikoura Earthquake, New Zealand. Bulletin of the Seismological Society of America, 108 (3B). ISSN 0037-1106 https://doi.org/10.1785/0120170305 Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Manuscript Click here to download Manuscript BSSA_Kaikoura_Landslides_revised_FINAL.docx 1 Landslides Triggered by the MW 7.8 14 November 2016 Kaikoura Earthquake, New 2 Zealand 3 C. Massey1; D. Townsend1; E. Rathje2; K.E. Allstadt3; B. Lukovic1; Y. Kaneko1; B. Bradley4; J. 4 Wartman5; R.W. Jibson3; D.N. Petley6; N. Horspool1; I. Hamling1; J. Carey1; S.
    [Show full text]
  • Plunket Annual Report 2016/17
    ANNUAL REPORT The2017 Royal New Zealand Plunket Society Inc. a Our vision 3 From our New Zealand President 4 From our Chief Executive 6 Plunket by the numbers 8 Our heart 12 Our people 16 Our approach 18 Our insights 20 Our funding 22 Plunket Board and Leadership 26 Financials 28 Funding Partners 34 Principal Partner 36 ISSN 0112-7004 (Print) ISSN 2537-7671 (Online) 1 OUR VISION OUR GOALS OUR MĀORI PRINCIPLES Our vision, Healthy tamariki – We make sure every Mana Atua – Mana Atua is the most Whānau tamariki/child has the opportunity to be important foundation pillar, enabling āwhina as healthy and well as they can be. Māori to reconnect to the source of Confident whānau – We build the creation, based on their realities as goals, In the first 1000 confidence and knowledge of whānau/ tangata whenua. The disconnection families across New Zealand. of tangata whenua from their Mana days we make Atua (resulting in a state of Wairua Connected communities – We make Matangaro) is a source of ‘haumate’ the difference sure no whānau/family is left isolated, strategic (unwellness). disconnected or unable to cope. of a lifetime Mana Tūpuna – Acknowledging OUR STRATEGIC THEMES the ancestral dimension, a person’s Tamariki, their whānau/family and connection to their ancestry through themes whakapapa (genealogy). communities are at the heart of everything we do. Mana Whenua – Mana Whenua High performing Plunket people. recognises the physical, spiritual and emotional connection to the land. This & Māori Integrated, collaborative and includes forests, swamps, pa sites, connected approach. rivers and other geographical entities, Plunket is a learning organisation elements each in their own right able to principles fuelled by knowledge, data and define a person’s tūrangawaewae (place insights.
    [Show full text]
  • Planning Napier 1850-1968
    Copyright is owned by the Author of the thesis. Permission is given for a copy to be downloaded by an individual for the purpose of research and private study only. The thesis may not be reproduced elsewhere without the permission of the Author. PLANNING NAPIER 1850–1968 A thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Planning at Massey University, Manawatu, New Zealand John Barry Annabell 2012 Abstract In the context of New Zealand planning history, planning can be seen in two forms. Informal planning describes planning-related activities already taking place before the establishment of formal town planning in the early 20th century. Formal planning describes planning activities based on legislation, a developing body of knowledge, and a planning profession. Whether informal or formal, planning has been concerned with the arrangement and control of activities in space, with the objective of creating a better living environment. For Napier, a provincial centre, the influence of planning on the growth and development of the town is discussed in terms of four principal themes, covering the period from the birth of the town in the 1850s until 1968. These themes are reclamation, reconstruction, suburban growth, and place promotion/civic improvement. Reclamation planning was important, given that the original town was almost totally surrounded by sea or swamp, with insufficient land for future expansion. A major earthquake in 1931 destroyed the business area of Napier, but helped solve the expansion problem by raising the level of land so that reclamation became easier or was now unnecessary.
    [Show full text]
  • Response of Instrumented Buildings Under the 2016 Kaikoura¯ Earthquake
    237 Bulletin of the New Zealand Society for Earthquake Engineering, Vol. 50, No. 2, June 2017 RESPONSE OF INSTRUMENTED BUILDINGS UNDER THE 2016 KAIKOURA¯ EARTHQUAKE Reagan Chandramohan1, Quincy Ma2, Liam M. Wotherspoon3, Brendon A. Bradley4, Mostafa Nayyerloo5, S. R. Uma6 and Max T. Stephens7 (Submitted March 2017; Reviewed April 2017; Accepted May 2017) ABSTRACT Six buildings in the Wellington region and the upper South Island, instrumented as part of the GeoNet Building Instrumentation Programme, recorded strong motion data during the 2016 Kaikoura¯ earthquake. The response of two of these buildings: the Bank of New Zealand (BNZ) Harbour Quays, and Ministry of Business, Innovation, and Employment (MBIE) buildings, are examined in detail. Their acceleration and displacement response was reconstructed from the recorded data, and their vibrational characteristics were examined by computing their frequency response functions. The location of the BNZ building in the CentrePort region on the Wellington waterfront, which experienced significant ground motion amplification in the 1–2 s period range due to site effects, resulted in the imposition of especially large demands on the building. The computed response of the two buildings are compared to the intensity of ground motions they experienced and the structural and nonstructural damage they suffered, in an effort to motivate the use of structural response data in the validation of performance objectives of building codes, structural modelling techniques, and fragility functions. Finally, the nature of challenges typically encountered in the interpretation of structural response data are highlighted. INTRODUCTION [4–6], the 2013 Seddon earthquake [7–9], and the 2013 Lake Grassmere earthquake [8]. The 2016 Kaikoura¯ earthquake pro- Lessons learnt from historical earthquakes have played a vital duced intense ground motion in Wellington [10], with some role in the progressive improvement of our structural design stan- buildings experiencing ground motions of intensity correspond- dards.
    [Show full text]
  • Building Resilience in Transient Rural Communities – a Post-Earthquake Regional Study: Scoping Report
    Building resilience in transient rural communities – a post-earthquake regional study: Scoping report Jude Wilson David Simmons November 2017 RNC Report: RNC032:04.01 DISCLAIMER: While every effort has been made to ensure that the information herein is accurate, neither the authors nor Lincoln University accept any liability for error of fact or opinion which may be present, or for the consequences of any decision based on this information. Cover image sourced from New Zealand Transport Agency – Plan your Journey (https://www.nzta.govt.nz/resources/plan-your-journey/) Table of Contents TABLE OF CONTENTS ........................................................................................................................................ 1 LIST OF BOXES ........................................................................................................................................................ 3 LIST OF TABLES ....................................................................................................................................................... 3 LIST OF FIGURES ...................................................................................................................................................... 3 ACRONYMS AND ABBREVIATIONS ................................................................................................................................ 4 INTRODUCTION ..............................................................................................................................................
    [Show full text]
  • Some NZ Earthquake Lessons and Better Building Construction
    Some NZ Earthquake Lessons and Better Building Construction Gregory A. MacRae 1, G. Charles Clifton 2 and Michel Bruneau 3 1. Corresponding Author. Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, New Zealand. Email: [email protected] 2. Department of Civil and Environmental Engineering, University of Auckland, Auckland, NZ Email: [email protected] 3. Professor, Department of Civil, Structural and Environmental Engineering University at Buffalo, Buffalo, New York, USA Email: [email protected] Abstract Over the past few years, the South Island of New Zealand has been subject to significant sequences of earthquake shaking. In particular, 2010-2011 events affected the city of Christchurch, resulting in widespread demolition of buildings. Also, the recent and continuing 11/2016 events caused severe damage in the countryside, in small towns, and moderate damage further afield. This paper summarizes general lessons associated with these events. It also describes “low damage construction” methods being used in NZ, and especially in the Christchurch rebuild, to limit the possibility of building demolition in future large seismic events. The buildings used in the Christchurch rebuild are generally supported by structural steel framing. These steel buildings include BRB systems, EBF systems with replaceable active links, rocking systems, base isolation using friction pendulum systems and/or lead-rubber dissipaters, RBS beams, lead extrusion dissipaters, yielding flexural dissipaters, and friction connections. Concerns about a number of currently used systems are discussed. It is shown that subjective quantitative tools, rather than purely probabilistic ones, may be more useful to engineers as they decide what structural system to use.
    [Show full text]
  • 2018 Annual Report
    2018 Annual Report Contents Directors’ Report 3 ___ Chair’s Report 4 About Us 5 Our Outcomes 6 Research Research overview 7 Technology platforms 8 Flagship programmes 9 Other projects 10 Ground-breaking test shows new low-damage New Zealand construction practice can withstand earthquakes 11 Alpine Fault case study helps decision makers integrate cutting-edge research 13 Liquefaction research gains international acclaim 15 Collaboration to Impact Development of guidelines for building assessment 17 Niho Taniwha: A site-specific case study in communicating tsunami risk to Tūranganui-a-Kiwa 19 Technology Platform 2 leads to guidelines for field research best practice 21 Innovation improve new library’s earthquake resilience 23 Capability Development QuakeCoRE directorship changes hands 24 QuakeCoRE strengthens capability in land-use planning to reduce seismic risk 26 Supporting the next generation of earthquake researchers 27 Recognitions highlights 29 Financials, Community & Outputs Financials 32 2018 At a glance 33 Community 34 Publications 39 Directors’ Report 2018 ___ Te Hiranga Rū QuakeCoRE formed in 2016 with a vision of transforming the As we move into 2019, with a key change in our leadership, QuakeCoRE looks earthquake resilience of communities throughout Aotearoa New Zealand, and forward to another productive year, delivering on our vision for the future of in three short years, we are already seeing important progress toward this earthquake resilience. vision through our focus on research excellence, deep national and international collaborations, and human capability development. In our third Annual Report we highlight our world-class research taking place both in our own backyard and overseas. With the Alpine Fault overdue for its next big Ken Elwood – Director shake, QuakeCoRE researchers have been focused on the development of physics- based models to identify where shaking will be strongest and what infrastructure will be most at risk.
    [Show full text]