Proceedings of the 2023 New Zealand Society for Earthquake Engineering Annual Technical Conference: Recent submissions
Now showing items 41-60 of 107
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Case Study for Seismic Assessment of an Existing Asymmetric non-prismatic Unique Reinforced Concrete- encased Steel Plate Column in Wellington
(2023-04-19)This case study presents a tailored approach to assessing a high-rise building in the Wellington CBD constructed primarily from reinforced concrete encased steel frames. This construction is rare in New Zealand, and it is ... -
Retrofit and Repair of Reinforced Concrete Columns with Active Confinement
(2023-04-19)There are too many reinforced concrete (RC) columns built before the 1970s without sufficient transverse reinforcement. Past earthquakes have demonstrated the vulnerability of such columns and the need for their retrofit. ... -
Experimental proof of the effectiveness of timber panels in the seismic retrofit of URM buildings
(2023-04-19)Recently there has been a growing interest by both academia and the industry in the possibility of using timber as a strengthening material for the seismic retrofit of unreinforced masonry (URM) buildings. This possibility ... -
Field miniature prototype development and pilot project design of subsurface compacted Rubble Raft (SCRR)
(2023-04-19)Subsurface Compacted Rubble Raft (SCRR) is a patented wide-area ground improvement solution that focuses on solving severe liquefaction hazards. SCRR technique directly targets the liquefaction layers by constructing a ... -
Vs30 Assessments: Understanding the Underground
(2023-04-19)Understanding the vulnerability of a construction site to seismic shaking is fundamental to robust building design in New Zealand. The recent release of the updated National Seismic Hazard Model reflects this, with an ... -
Performance assessment of shallow founded buildings on liquefiable soils
(2023-04-19)In evaluating foundation options for sites featuring liquefiable soils, shallow raft foundations may remain a suitable and preferred solution, provided the seismic performance can be demonstrated to be adequate. In evaluating ... -
Assessment of lateral spread potential used smeared strengths of liquefied/non liquefied soils
(2023-04-19)Liquefaction-induced lateral ground displacements (lateral spread) are typically assessed using empirical methods where a continuous weak (liquefied) layer is expected. These methods are not appropriate for variable fill ... -
Accounting for the Influence of Intrinsic Soil Properties and State Variables on Liquefaction Triggering
(2023-04-19)Current simplified liquefaction triggering procedures are limited in their ability to capture the effects of intrinsic properties (grain size, mineralogy, grain shape, etc.) and the state properties (stress state, void ... -
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, ... -
Multidirectional cyclic testing of self-centering cross-laminated timber shear wall sub-assemblies
(2023-04-19)Driven by demand for sustainable buildings, mass timber, specifically cross-laminated timber (CLT), is being more widely used in mid-rise buildings in the US. In areas of the US with a significant seismic (i.e., earthquake) ... -
Earthquake Protection of Residential Buildings: New Resilient System for Light Timber Framing
(2023-04-19)In NZ, similar to other countries, residential houses are mostly constructed using light timber framing. The common seismic solutions available in the market for such low-rise buildings are based on yielding of sacrificial ... -
Establishing the Transverse Load Capacity of a Timber-framed Classroom Block
(2023-04-19)In 2013, longitudinal testing of single storey timber-framed classroom blocks was initiated by the Ministry of Education and completed by BRANZ to better understand the seismic resilience of timber-framed buildings within ... -
Effect of uncertainties in collapse assessment of coupled CLT walls with energy dissipators as couplers and resilient hold-downs
(2023-04-19)Rocking coupled CLT walls with energy dissipaters as couplers provide increased stiffness and damping, enabling the design realisation of taller CLT structures. Researchers have proposed design methods and conducted ... -
The next generation of drywall construction for low-damage design
(2023-04-19)Low-damage structural systems that can withstand large earthquakes with no structural damage, or localised damage in pre-defined fuses, have become commonplace in the past one to two decades. These systems however, generally ... -
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 ... -
Seismic Restraint of Non-Structural Elements – Evolving Design Thinking
(2023-04-19)Seismic Restraint of non-structural elements has received increased attention in the past decade within the New Zealand building industry. Clients and Project Managers are now often coupling Seismic Restraint design with ... -
Seismic design of suspended lightweight ceilings – what’s the ductility?
(2023-04-19)In the last few years, the design of suspended ceilings has gone through significant change and the level of compliance required has increased substantially. This was largely due to the generally poor performance of these ... -
A Review of Practice-Oriented Methods for Estimating Seismic Demands on Parts and Components
(2023-04-19)A variety of methods for the estimation of demands on building parts and components have been proposed in international codes and the literature. These have been reviewed as part of recent research co-funded by QuakeCoRE, ... -
Using holistic design to improve the seismic performance of non-structural elements and building resilience
(2023-04-19)Non-structural elements typically contribute around 80% of the total cost of a building. Damage to these components as well as works to repair and replace earthquake damaged non-structural elements can mean buildings are ... -
Effect of Periodic Unit Cell Volume on Attenuation Zones of 1D-Meta-material based Periodic Foundations
(2023-04-19)The meta-material-based periodic foundations are being investigated by researchers for earthquake engineering applications due to their wave-filtering ability. The periodic foundations are characterized by frequency bandgaps, ...