New Zealand Society for Earthquake Engineering: Recent submissions
Now showing items 261-280 of 1863
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A case study of Soil-Foundation-Structure-Interaction for aseismic design of wind turbines
(2022-04-27)Wind farms in New Zealand have a combined capacity of about 690 MW and supply around 6% of New Zealand’s annual electricity generation. This is about the amount of electricity 300,000 kiwi homes use in a year. Wind farms ... -
Liquefaction potential of sand-gravel mixtures: experimental observations
(2022-04-27)Case histories from at least 27 earthquakes worldwide (including three from New Zealand: 1929 Mw7.6 Murchison earthquake; 2010 Mw 7.1 Darfield earthquake; and 2016 Mw 7.8 Kaikoura earthquake) have indicated that liquefaction ... -
Code requirements for column confinement with a view on drift
(2022-04-27)Confinement provided by transverse reinforcement plays an essential role in reinforced concrete columns. When proportioned judiciously, confinement provides longitudinal bar restraint, contributes to shear resistance, and ... -
Interim Results from empirical ground motion model evaluation for the NZ National Seismic Hazard Model Update
(2022-04-27)As a part of the ongoing 2022 NZ National Seismic Hazard Model (NSHM) Update, the predictive capabilities of candidate empirical ground motion models are evaluated to ascertain models which provide good prediction for NZ ... -
Seismic Performance of Precast Hollow-core Units Seated Within the Plastic Hinge Region
(2022-04-27)This paper discusses the susceptibility of hollow-core floor units to sustain a higher degree of damage when they are seated within the plastic hinge regions of the supporting beam. This damageability of these so-called ... -
Seismic structural monitoring in Wellington using advanced seismological techniques
(2022-04-27)Sklodowska et al. (2021) employed advanced seismological techniques usually applied to Earth studies to the Te Puni building (instrumented as part of the GeoNet building instrumentation programme) for the 2009-2017 ... -
Modelling uncertainty induced by plastic hinge length in lumped-plasticity analysis of RC columns
(2022-04-27)This study quantifies the influence of various plastic hinge length assumptions on the uncertainty in the response of reinforced concrete (RC) columns simulated using lumped plasticity models. Although several expressions ... -
Earthquake Design Loads on Retaining Walls
(2022-04-27)Free-standing retaining walls are usually designed for earthquake loads using the Monobe-Okabe method and assuming cohesionless soil backfill. This simple design approach has led to satisfactory performance and is supported ... -
Repair and Reinstatement of Douglas-fir CLT Hold-down Connections using Mixed Angle Self Tapping Screws
(2022-04-27)The system ductility of timber structures under seismic loads relies on well detailed connection systems. With the increasing popularity of mass timber structures, CLT shear walls provide an efficient seismic load resisting ... -
Social Influences on behavioural response to earthquake shaking
(2022-04-27)Many earthquake injuries in Aotearoa New Zealand occur because people either do not act quickly to protect themselves or act in a way which can lead to harm. Earthquakes are an uncertain context in which to make behavioural ... -
Ductile timber connections: Understanding the factors contributing to their ductility
(2022-04-27)It is well accepted that ductility in a timber structure is achieved through its conections as the behaviour of timber is inherently brittle. It is thus important to understand the diferent parameters that contribute to ... -
Investigation of influential factors on yield strength of lead rubber bearings
(2022-04-27)The design of seismic isolators as specified by building code requirements is well defined and well established. However, there is still some refinement required for these design practices, especially in terms of estimating ... -
Dealing with uncertainty in prediction of lateral spread
(2022-04-27)Prediction of lateral spread for seismic assessment and design includes considerable uncertainty. Two widely used prediction methods are Youd et al. (2002) and Zhang et al. (2004). Five case studies across the Wellington ... -
Prediction of Demands on Non-Structural Components in Base-Isolated Structures
(2022-04-27)This study examines seismic demands imposed on non-structural components within base isolated structures. Although several previous studies have focussed on the ability of base isolators to limit structural damage, very ... -
Mainstreaming building code practice and risk management principles towards disaster risk reduction
(2022-04-27)Global disaster impacts on the built environment have triggered the call for an operational disaster risk reduction (DRR). The application of building code requirements has shown an acceptable means of minimizing disaster ... -
Retaining Wall Design - SESOC
(2022-04-27)In the absence of a recognised or accepted national standard, and in order to provide clarity around the technical basis for their retaining wall software, some time ago SESOC embarked on the development of two design ... -
Seismic strengthening of the Seatoun Tunnel
(2022-04-27)The Seatoun tunnel is a 147m long, vehicle and pedestrian tunnel built in 1906-1907 to provide a tram connection between the suburb of Seatoun the city of Wellington. In 2011, the Seatoun tunnel structure was assessed as ... -
A preliminary investigation of validity of conventional single-mode pushover analysis in multi-mode systems
(2022-04-27)Pushover analysis is a simplified inelastic analysis approach where a structure is subjected to increasing increments of monotonic imposed force or displacements to estimate the inelastic deformations in the structural ... -
Ductility factor validation for CLT walls with bolted hold-downs: preliminary analysis and observations
(2022-04-27)High-capacity cantilever CLT walls can be created with bolted hold-downs to resist earthquake loading. This study briefly presents the experimental results and cyclic behaviour of the representative test specimen. Then ... -
Application of resilient rocking cores in low damage mass timber structures: A case study
(2022-04-27)The application of mass timber structures made with massive wooden panels such as Cross Laminated Timber (CLT) has significantly increased in the last few years owing to their many architectural and structural advantages, ...