Browsing Proceedings of the 2021 New Zealand Society for Earthquake Engineering Annual Technical Conference by Subject "Advancements in structural and geotechnical design and assessment"
Now showing items 1-20 of 44
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1170.5 Reimagined: from a structural designers view
(2021-04-14)Our loadings code has adapted and extended to incorporate new knowledge as it has emerged over the last 50+ years: could a re-write encourage engineers to design better buildings? This paper outlines some intentionally ... -
A comparison of New Zealand seismic code requirements with other major design codes in the implementation of seismic resilient devices
(2021-04-14)In the ever-evolving earthquake engineering field, the need of the hour is to achieve earthquake-resistant buildings which have immediate occupancy following an earthquake. This implies that the demand for resilient dampers ... -
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 ... -
Advances in Floor Diaphragm In-Plane Modelling Using Truss Elements
(2021-04-14)Different methods to model building floor diaphragm in-plane stiffness with truss elements are compared to identify the method most suitable for analysis in design. The methods considered include (i) Elastic truss, (ii) ... -
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 ... -
ATC-145: Influence of prior shaking on earthquake response and repair requirements for structures and elements
(2021-04-14)ATC-145 is a FEMA funded project aimed at developing a Guide for repair of earthquake damaged buildings to achieve future resilience. Thanks in part to EQC funding, the project includes substantial New Zealand representation. 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 ... -
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 ... -
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 ... -
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 ... -
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. ... -
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 ... -
Enhancing seismic performance of existing buildings using viscous dampers for Forward-Directivity Earthquakes – The Challenges
(2021-04-14)Enhancing the performance of an existing building with viscous dampers for a Wellington site requires thorough consideration of near-fault effects, the Wellington Fault being so close. Earthquake records with forward-directivity ... -
Enhancing seismic performance of structure with different configuration of passive D3 viscous damper
(2021-04-14)For each structure and project, there is a unique desire. Seismic building performance can be increased using dissipation systems like viscous dampers. However, these improvements are offset by the added cost if the total ... -
Evaluation of assessment approaches for soil-foundation-structure interaction of frame buildings
(2021-04-14)The consideration of soil and foundation deformations within the seismic assessment of buildings can be critical for evaluating the likely load paths and consequent deformations. Frame buildings provide numerous complexities ... -
Evaluation of seismic performance of buildings and infrastructure
(2021-04-14)Observations from the Canterbury and Kaikoura earthquakes are used to illustrate some important factors that often govern the seismic performance of ground, buildings and infrastructure. The talk examines some of the ... -
Experimental loading protocols to evaluate the seismic performance of floor systems
(2021-04-14)Major earthquakes, such as the Canterbury and Kaikoura events recorded in New Zealand in 2010 and 2016 respectively, highlighted that floor systems can be heavily damaged. At a reduced or full scale, quasi-static experimental ... -
Experimental seismic characterisation of gravel-granulated tyre mixtures and design implications
(2021-04-14)Worldwide, due to the large amount of end-of-life tyre (ELT) stockpiles, reusing and recycling of ELTs in civil engineering applications have become a priority, significantly contributing to lessen environmental and health ... -
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 ... -
From mud to modules and beyond - the post-2011 Christchurch evolution of earthquake geotechnical engineering in New Zealand
(2021-04-14)The extent of land damage during the Canterbury earthquakes was a wake up call. It disproportionately impacted many aspects of the recovery, including costs, time, community cohesion and individual welfare. The earthquake ...