Proceedings of the 2021 New Zealand Society for Earthquake Engineering Annual Technical Conference: Recent submissions
Now showing items 21-40 of 115
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An attempt to determine a relationship between a mass-spring-friction damper single-degree-of-freedom system’s equivalent viscous damping ratio and its corresponding friction coefficient
(2021-04-14)Damping forces are always present in real structures, occurring in several different forms, making them challenging to model expressly. Damping is often assumed to be viscous in nature, due to the simplicity of the ... -
Seismic performance expectations of homeowners using strengthening techniques to structurally prepare houses for earthquakes
(2021-04-14)Due to the widespread damage and large economic losses caused to residential houses by major earthquakes all around the world, government authorities and nongovernmental organizations have made significant investments to ... -
Seismic behaviour of a non-linear structure with passive D3 viscous damper
(2021-04-14)Passive Direction Displacement Dependent (D3) viscous damper is a next generation of the conventional viscous damper could provide damping force in any desired quadrant to provide wanted damping hysteresis loop. This ... -
Three-storey Configurable Steel Framed Building Incorporating Friction Based Energy Dissipaters: Structural Configuration and Instrumentation
(2021-04-14)A 9 m high, full-scale three-storey configurable steel frame composite floor building incorporating friction based connections is being tested using two linked bi-directional shake tables at the International joint research ... -
Liquefaction Assessment of Reclaimed Land at CentrePort
(2021-04-14)The 2016 Mw7.8 Kaikōura earthquake caused widespread liquefaction in the port of Wellington (CentrePort), New Zealand which produced substantial lateral ground movements along with global and differential settlement. ... -
Blenheim gravel liquefaction assessment using the Chinese dynamic cone penetration test
(2021-04-14)Worldwide, one of the issues that has been constantly brought to attention by engineers is the lack of guidance for geotechnical characterization and liquefaction assessment of gravelly soils. In gravelly soils, the ... -
Adequacy and Retro-Fitting of Timber Frame House Foundations on Slopes
(2021-04-14)Previous studies have indicated that there are significant issues with the structural strength and stability of many existing house foundations on sloping sites. This was confirmed after the Christchurch earthquakes, where ... -
Performance of Taranaki Volcanic Silts under Cyclic Loading
(2021-04-14)WSP has been involved in a number of building projects in New Plymouth. Some of the buildings are founded on volcanic silts (Taranaki ash). Field and simplified laboratory tests often indicate that these materials are ... -
Assessment of boundary conditions for 2D geotechnical site-response analysis with soil heterogeneity
(2021-04-14)This paper examines various boundary condition assumptions for modelling 2D geotechnical site response, which requires a more sophisticated treatment of the boundary and loading conditions than what is typically required ... -
Developing LSN-based pipe repair rate functions utilising data from the 2011 Canterbury earthquakes
(2021-04-14)The Canterbury Earthquake Sequence adversely impacted built, economic and social environments. This included widespread physical damage to the water supply pipe network in Christchurch, resulting in long service disruptions. ... -
Evaluation of a geospatial liquefaction model using land damage data from the 2016 Kaikoura earthquake
(2021-04-14)Earthquake induced liquefaction and lateral spreading can cause major damage to buildings and infrastructure networks. Common procedures to identify exposed areas such as cone penetration testing require extensive resources ... -
Wall-to-floor connection behavior in a low-damage concrete wall building
(2021-04-14)Following the 2010/2011 Canterbury earthquakes, approximately 60% of multi-story buildings with reinforced concrete walls required demolition. Both practitioners and researchers have increasingly realized that low-damage ... -
Self-drilling dowel connections for ductile link beams in coupled CLT walls
(2021-04-14)Coupled CLT walls with steel link beams can form a more efficient lateral load resisting system for tall timber buildings when compared to single CLT shear walls. To achieve adequate coupling between CLT walls and ensure ... -
Drift Demand Estimates for Inelastic Torsional Response of Half-scale Seven-storey RC Specimens
(2021-04-14)Existing reinforced concrete buildings with irregularities are susceptible to torsional response and resulting localised damage or collapse under seismic excitation. Primary source of torsional response can be inherent ... -
Finite Element Analyses of Hollow Core Units Subjected to Shear and Torsion
(2021-04-14)A building boom in the 1980s allowed pre-stressed hollow-core floor construction to be widely adopted in New Zealand, even though the behaviour of these prefabricated elements within buildings was still uncertain. Inspections ... -
Cyclic behaviour of hold-downs using mixed angle self-tapping screws in Douglas-fir CLT
(2021-04-14)Long self-tapping screws are now commonly used in mass timber construction in New Zealand and globally due to their high strength and ease of installation on site. Under axial loads, self-tapping screws are strong and stiff ... -
Investigating CLT Lateral Load Resisting Systems for Taller Timber Buildings
(2021-04-14)Recent taller timber buildings worldwide have often utilized hybrid systems of mixed materials and have been built in regions of low seismicity. Designers often adopt the hybrid material solution of utilizing mass timber ... -
Determining the realistic rotational stiffness of column base connections in steel seismic resisting systems
(2021-04-14)The New Zealand Steel Structures Standard, NZS 3404, provides an upper and lower rotational stiffness boundary for fixed and pinned column base connections for structural analysis, respectively. These boundaries aim to ... -
Balancing seismic resilience and lean design to reduce the embodied carbon of buildings
(2021-04-14)The building and construction sector needs to make big changes to reduce greenhouse gas emissions if New Zealand is going to meet the legally binding targets of the 2019 Zero Carbon Act, and its commitments under the Paris ... -
Case studies on low damage mass timber structures with resilient connections
(2021-04-14)There is increasing public pressure to have seismic-resistant structures made with massive wooden panels such as Cross Laminated Timber (CLT). It is well-known that the type and behaviour of the connections govern the ...