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Testing the cyclic strain softening behaviour of an ageing puddled clay core dam
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Seismic resilience of the 150-year-old Ross Creek puddled clay core water supply dam in Dunedin has recently been enhanced through a programme of refurbishment. The very low permeability moderately plastic soils comprising ...
A risk-based framework to account for step-change behaviour in seismic assessment
(New Zealand Society for Earthquake Engineering, 2024-04-09)
In New Zealand, the seismic assessment of existing buildings focuses on life safety risk. The assessed capacity of a building is limited by the capacity corresponding to any vulnerability (or weakness) that can potentially ...
The ROBUST Steel Building Response
(New Zealand Society for Earthquake Engineering, 2024-04-09)
The ROBUST test programme describes the full-scale shaking table testing of nine different steel frame building configurations on the Tongji University shaking tables. Energy dissipation occurs by means of friction devices ...
Communicating seismic risk with commercial building tenants: Preliminary results
(New Zealand Society for Earthquake Engineering, 2024-04-09)
In Aotearoa New Zealand, the interpretation of seismic risk information and the subsequent demands put on building owners and developers, are shaping the performance of our building stock. Commercial building tenants, in ...
Analysis of Site-Response Residuals from Empirical Ground-Motion Models to Account for Observed Sedimentary Basin Effects in Wellington, New Zealand
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Analysis of prediction-observation residuals from the empirical ground motion models (GMMs) used in the 2022 New Zealand National Seismic Hazard Model (NZ NSHM) update indicates a general underprediction of ground motions ...
Finite Element Method Analysis of Reinforced Concrete Exterior Beam-Column Joint Structures Subjected to High Varying Axial Forces
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Large variation of axial forces in columns in the lower stories of a high-rise reinforced concrete buildings during a severe earthquake can cause significant changes in the column-to-beam strength ratio in the exterior ...
Shallow Shear Wave Reflection Surveys in the Wellington CBD
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Seismic reflection profiles using shear waves provide constraints on the thickness of sediments beneath the Wellington CBD. New shear wave source and acquisition methods were trialled for use in urban environments to ...
Towards 3D ground motion simulation-based site amplification: a Wellington case study considering multiple basin geometries
(New Zealand Society for Earthquake Engineering, 2024-04-09)
This paper presents a study on 3D ground motion simulation-based site amplification using the Wellington region of New Zealand as a case study. Several recent models of the Wellington sedimentary basin have been developed ...
Proposal of repair index and strategy for recovery of reinforced concrete buildings damaged by earthquakes
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Restoration of damaged buildings is an important issue for achieving smooth recovery of society after a devastating earthquake disaster. In general, in past earthquake disasters in Japan, demolition or repair judgement was ...
Time History Analysis is easy, and you should do it: Here’s how.
(New Zealand Society for Earthquake Engineering, 2024-04-09)
Time history analysis is generally regarded as a highly specialised and deeply technical process. There is also a growing divide between different schools of thought around how analysis should be done. On the one hand, ...