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Now showing items 321-340 of 1863
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Optimising seismic resilience assessments -Part II:Integrating geophysical and geotechnical investigations
(2023-04-19)In a country frequently shaken by earthquakes, understanding the risk to infrastructure from seismic shaking is a vital part of any construction project. With no single technique able to fully capture the seismic hazard ... -
Seismic Damage States and Damage Quantification of Light Timber Framed Walls in Residential Houses
(2023-04-19)New Zealand (NZ) has a performance-based code environment. The essence of performance-based seismic design of buildings is to achieve multiple performance requirements including damage control. However, the current seismic ... -
Mitigation of liquefaction-induced lateral spread ground displacements using an in-ground pile wall
(2023-04-19)Liquefaction-induced lateral spread ground displacements can be damaging to buildings and their foundations. Buildings can either be designed/strengthened to tolerate such displacements, or ground improvement (e.g. compaction, ... -
Performing Structural Assessment using Acoustic Measurements
(2023-04-19)Natural hazards, such as earthquakes, could be catastrophic. One challenge that society faces is how to provide a rapid and accurate evaluation of the structural damages after the events. Traditional visual inspection is ... -
Low Damage Wall To Floor Connections For Seismic Resilient Timber Structures
(2023-04-19)Rocking timber walls provide superior seismic performance in comparison with conventional light timber structures. Nevertheless, there is an uplift movement at the base of the wall that is translated as vertical displacement ... -
Multistage Friction Connections
(2023-04-19)Multistage friction connections (MFCs) are bolted connections for dissipating seismic energy while reducing peak displacements and encouraging recentring. MFCs comprise two symmetric friction connections co-linearly ... -
Seismic strengthening of RC walls using FRP to prevent axial failure
(2023-04-19)Reinforced concrete (RC) walls with insufficient compressive strain capacity at the boundary region are vulnerable to premature axial failure, limiting the drift capacity. A solution to strengthen these deficient RC walls ... -
Cyclic behavior of older concrete columns reinforced with high-performance fiber reinforced cementitious composites
(2023-04-19)Many older existing reinforced concrete (RC) buildings were designed without considering seismic loads. In such buildings, columns may be the most vulnerable element because they generally have insufficient reinforcement ... -
Testing the cyclic strain softening behaviour of an ageing puddled clay core dam
(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
(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
(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
(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
(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
(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
(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
(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
(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.
(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, ... -
Heritage Buildings and Community Sense of Place: Towards Addressing the Challenge of Earthquake Prone Heritage Buildings
(2024-04-09)New Zealand is a nation that has a significant amount of built heritage, of which there are several internationally recognised landmarks, including the Christchurch Cathedral, the Church of the Good Shepherd, and the Chateau ... -
New Zealand National Seismic Hazard Model Revision 2022: Hazard changes with respect to NZ NSHM 2010
(2024-04-09)Revision of New Zealand National Seismic Hazard Model (NZ NSHM 2022) represents a significant change not only in hazard results but also in terms of methods and processes in comparison to NZ NSHM 2010. The changes span ...