Browsing Proceedings of the 2024 New Zealand Society for Earthquake Engineering Annual Technical Conference by Subject "Seismic performance, risk mitigation and resilience of new and existing structures"
Now showing items 21-40 of 53
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Impact of base conditions on the bracing performance of LTF walls
(2024-04-09)Residential buildings in NZ are often low-rise light timber-framed (LTF) buildings where LTF walls provide the gravity and lateral load resisting systems. LTF building construction largely follows the prescriptive standard ... -
Impacts of ground motion and scaling method selection on the performance of rocking wall systems with friction connections
(2024-04-09)Dynamic time-history analysis has long been regarded as an acceptable and reliable method for seismic design of structures not covered by codal guidelines and often referred to as "alternative" design. Resilient rocking ... -
Improving structural performance of an existing EBF and moment frame structure using fluid viscous dampers
(2024-04-09)Improving the performance of existing buildings is a critical function for engineers and one of the most impactful ways we can improve the sustainability of buildings. By re-using and upgrading existing building stock, we ... -
Informing Clients on the Business Case for Seismic Resiliency
(2024-04-09)The role of structural engineer has been to ensure life safety of building occupants during a seismic event. In the past, a singular focus on this performance target has resulted in structures that relied on the dissipation ... -
Insights into the Response of Multi-Storey Eccentrically Braced Frame Steel Structures to Earthquake Ground Motion
(2024-04-09)Insights were gained from the 2010 Christchurch earthquake series into the performance of eccentrically braced frame (“EBF”) buildings up to around 20 storeys high. An elastic-plastic finite element analysis method using ... -
Moment Curvature Analysis of wide-flange steel columns with local buckling dominant mode of failure
(2024-04-09)One of the key information that can provide an insight into the seismic behaviour of structural elements is their force-displacement curve. Such a curve can be obtained based on a moment-curvature analysis and using an ... -
Multistage Friction Connection Optimisation
(2024-04-09)This paper describes the use of multi-stage friction connections (MFCs) to modify hysteresis curve characteristics of structures in order to decrease their peak and residual displacements. Both cases with and without P-delta ... -
NZ Industry Nonlinear Response History Guidelines
(2024-04-09)Nonlinear response history analysis (NLRHA) provisions in NZS 1170.5 were developed 20 years ago. Significant developments in the selection and scaling of ground motion records have occurred since this standard was ... -
Omāroro Reservoir: A Case Study. It’s Cheaper to Work with Nature
(2024-04-09)By all accounts, Wellington, New Zealand is a challenging seismic environment for the design and construction of infrastructure. In recent years, this challenge has increased with our deeper understanding of Aotearoa’s ... -
P-delta or P-theta analysis?
(2024-04-09)Engineers have methods to estimating the displacements of inelastically responding structures in earthquakes. Rules to estimate such displacements for a structure with a certain period, damping, and hysteretic behaviour ... -
Panel Zone Strength in Moment Frames with Slabs
(2024-04-09)Despite the common occurrence of composite slabs in steel structures, they are often excluded from design considerations, which may lead to undesirable panel zone yielding due to increased demands. Through the utilisation ... -
Performance of RC buildings in the 2023 Turkey-Syria earthquakes
(2024-04-09)The 2023 Mw 7.7-7.8 Turkey-Syria earthquakes were devastating events that resulted in widespread damage throughout several regions of western Turkey. In March 2023, the Architectural Institute of Japan deployed a team of ... -
Performance of Seismically Isolated High-Speed Railway Bridges against Near-Fault Ground Motions
(2024-04-09)The first high-speed rail (HSR) corridor in India, built on viaducts and bridge structures, is currently under construction between Mumbai and Ahmedabad. This corridor passes through seismic Zone III, whereas future corridors ... -
Performance-based Assessment and Seismic Strengthening of the Christ Church Cathedral
(2024-04-09)The Christ Church Cathedral is a significant landmark for New Zealand. It was severely damaged in the 2011 Canterbury earthquakes – the Tower and Rose Window/western façade of the Cathedral suffered partial collapses while ... -
Practical issues in time-history analysis of low-rise concrete wall buildings with subterranean levels
(2024-04-09)In New Zealand, older power stations are commonly low-rise concrete wall structures with rigid basements housing generators, turbines and other electro-mechanical infrastructure at or below ground level. These structures ... -
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 ... -
QA/QC methods for grouted Drossbach duct connections in precast concrete shear wall panels – case study: new 12-storey building in Auckland
(2024-04-09)This paper explores the issues and limitations of grouted Drossbach duct connections, and investigates the quality assurance/control (QA/QC) methods used in the construction monitoring of a new 12-storey hotel in Auckland. ... -
Quantification of economic benefits of functional recovery-based design: a stepwise review of the methodology
(2024-04-09)Recent earthquake experiences have shown that although life-safety objectives have been met, current seismic design standards were unable to ensure an acceptable level of robustness and recovery timeframe for all modern ... -
Recommended practice for seismic restraint design of suspended ceilings
(2024-04-09)Seismic restraint of suspended ceilings in the New Zealand environment has seen significant evolution over the past decade. Amendments to NZS1170.5 and updates to AS/NZS2785 are intended to drive better earthquake resilience ... -
Resin Injection ground improvement for liquefaction mitigation at Poverty Bay Rugby Club, Gisborne
(2024-04-09)Gisborne is located near the Hikurangi Subduction Zone which contributes to a significant amount of the seismic activity in New Zealand. This coupled with Gisborne’s soil profile consisting of liquefiable sands has resulted ...