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- Development and refinement of ground motion simulation methods that enable the generation of acceleration time series for the seismic response analysis of infrastructure.
- Development of ‘velocity models’ of the earth’s crust in new regions of New Zealand, or improvements in existing regions.
- Develop, validate, and apply models for nonlinear near surface site and topographic response for use in conjunction with ground motion simulation methods.
- Utilize ground motion simulations to forecast the severity of ground shaking over spatially-distributed regions in future major New Zealand earthquakes.
- Examination of modelling uncertainties in ground motion simulation methods and utilization for probabilistic seismic hazard analysis.
- Explore the role of simulated ground motions for use in seismic response analysis of engineering infrastructure, including comparisons with as recorded ground motions and development of procedures for simulated ground motions in infrastructure seismic design guidelines.
Thrust Areas | Key tasks/Deliverables | Start | Finish |
FP1.1 Simulation methods | 1. Integrate existing codes used in New Zealand into NeSI computational resources | 1/01/2016 | 31/12/2016 |
2. Validate simulations using historical New Zealand earthquakes | 1/01/2016 | 31/12/2020 | |
FP1.2 Velocity model development | 1. Develop enhanced 3D velocity models in two regions of New Zealand | 1/01/2016 | 31/12/2018 |
2. Utilize full waveform tomography for high-resolution velocity modelling | 1/01/2018 | 31/12/2020 | |
FP1.3 Nonlinear site and topographic response | 1. Directly integrate site response and topography into ground motion simulations vs. the use of Vs30. Examine the effects in Canterbury and Wellington | 1/01/2016 | 31/12/2019 |
2. Perform detailed analysis on when site-specific account for nonlinear and topographic effects is justified vs. simplified approaches | 1/01/2018 | 31/12/2020 | |
FP1.4 Application for major New Zealand scenarios | 1. Perform ground motion simulation case studies for cross-flagship research and outreach and compare with empirical predictions | 1/01/2016 | 31/12/2018 |
2. Develop a ‘Ground motion simulation atlas’ illustrating seismic intensity over a region for 50 earthquake ruptures which are greatest risk to New Zealand | 1/01/2017 | 31/12/2019 | |
| FP1.5 Uncertainties and PSHA | 1. Develop advanced ground motion simulations with treatment of modelling uncertainties | 1/01/2017 | 31/12/2020 |
| 2. Perform ‘Cybershake’ simulations performed for T>1s in New Zealand. Compare with hazard from codes and GMPEs | 1/01/2017 | 31/12/2020 | |
| FP1.6 Use of simulations in earthquake engineering analyses | 1. Develop a co-created industry working document on the use of ground motion simulations in engineering design | 1/01/2016 | 31/12/2018 |
| 2. Compare and assess simulated vs. recorded ground motions with archetype engineering structures used to determine bias in simulation methods for feedback to developers | 1/01/2017 | 31/12/2020 |
Current Projects
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Projects in 2018-2020 include the flagship coordinated project, projects funded through the QuakeCoRE RfP, and students with QuakeCoRE or other university scholarships.
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- Southern California Earthquake Center (SCEC) Ground Motion Simulation Validation (GMSV) Technical Activity Group (TAG)
- SCEC Broadband Platform: https://scec.usc.edu/scecpedia/Broadband_Platform
- Modelling earthquake engineering parameters (Holden and Kaneko; NHRP contestable round 2015-2017)
- Reconstructing complex ground motion effects in Christchurch during the Canterbury earthquakes: what does this mean for future ground motion prediction? (Kaiser; Marsden round 2013-2016)
Workshops
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2020
2019
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- 22 November 2018- Webconference - Coordination of GMSV projects
- 25 October 2018- Webconference - Coordination of GMSV projects
- 20 September 2018- Webconference - Coordination of GMSV projects
- 26 July 2018- Webconference - Coordination of GMSV projects
- 28 June 2018- Webconference - Coordination of GMSV projects
- 24 May 2018 - Webconference - Coordination of GMSV projects
- 26 April 2018 - Webconference - Coordination of GMSV projects
- 22 March 2018 - Webconference - Plans on projects for 2018 GMSV projects
- 22 February 2018 - Webconference - Plans on projects for 2018 GMSV projects
- 25 January 2018 - Webconference - Plans on projects for 2018 GMSV projects
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- 25 Feb 2016 - Webconference - Coordination of QuakeCoRE GMSV projects
- 24 March 2016 - Webconference - Coordination of QuakeCoRE GMSV projects
- 28 April 2016 - Webconference - Invited presentations on projects related to GMSV projects
- 26 May 2016 - Webconference - Coordination of QuakeCoRE GMSV projects
- 23 June 2016 - Webconference - Coordination of QuakeCoRE GMSV projects
- 15 July 2016 - Stakeholder workshop on "Guidance on the utilization of ground motion simulations in engineering practice"
- 28 July 2016 - Webconference - Coordination of QuakeCoRE GMSV projects
31 August 2016 - GMSV Workshop in conjunction with QuakeCoRE Annual Meeting
- 11-14 September 2016 - International Workshop on Ground Motion Simulation and Validation at the SCEC Annual Meeting
- 15 December 2016 - Webconference - Final presentation of 2016 QuakeCoRE GMSV projects
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2017 Funded Projects
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- 17084 - Development of a NZ-wide Vs30 model for use in regional ground motion simulations (Bradley, Foster - UC; Wotherspoon - UA; Somerville, Hosseini - AECOM; Thompson - USGS)
- 17085 - Waveform tomography of a South Island Velocity Model and simulation of major Hope Fault earthquakes on the South Island, NZ (Bradley, Lee, Thomson, Pettinga - UC; Wald - USGS; Horspool - GNS)
- 17086 - Response history analyses of structural and geotechnical systems using simulated and recorded ground motions (Pettinga - Holmes; Fraser - Golder; Bradley, Tarbali - UC; Baker - Stanford)
- 17088 - A 3D shear wave velocity model for Dunedin: Data gathering and interpretation (Stirling, Gorman, Holt - Otago; Wotherspoon - UA)
- 17114 - Development of a seismic velocity model and site characterisation for the Nelson/Tasman region (Wotherspoon - UA; Ryder - MWH/UA; Bradley, Foster - UC; Ghisetti - TerraGeologica)
- 17133 - Ground motion simulations for Hauraki rift earthquakes (Dempsey, Eccles - UA)
- 16/17FP1 - Ground motion simulation of Porters Pass earthquakes in the Canterbury region (Nazer, Bradley, Razafindrakoto, Pettinga - UC)
- 17AF8 - Ground motion simulation of Alpine Fault earthquakes (Bradley, Bae + AF8 project)
- 17KAIK - Ground motion simulation of the Mw7.8 Kaikoura earthquake (Bradley, Razafindrakoto, Polak)
- 17CYB - Cybershake: Simulation-based seismic hazard for the Canterbury region (Tarbali, Bradley)
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- 2017 QuakeCoRE Collaboration Plan - This will be released mid/late-Sept following the 2016 QuakeCoRE Annual Meeting
- 2016 QuakeCoRE Collaboration Plan - See page 9-10 for GMSV priorities. Proposals are due November 20, 2015.
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