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Case studies on low damage mass timber structures with resilient connections
(New Zealand Society for Earthquake Engineering, 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 ...
Philosophical reflexions following the Lyttleton 2011 New Zealand Earthquake: Ten years after
(New Zealand Society for Earthquake Engineering, 2021-04-14)
At 12:51 p. m. on 22 February 2011, the Mw 6.3 Lyttelton earthquake struck the Canterbury region of New Zealand. The seismic event was reported as the result of the rupture of a previously unknown geological fault, 5.9 km ...
Base isolation: the good, the bad and the ugly
(New Zealand Society for Earthquake Engineering, 2021-04-14)
In the light of the recent Christchurch and Kaikoura earthquakes and the life safety and economic uncertainties they pose, the need for “low damage design” has become more important. In theory a “low damage design” should ...
Cyclic behaviour of hold-downs using mixed angle self-tapping screws in Douglas-fir CLT
(New Zealand Society for Earthquake Engineering, 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 ...
Rebuilding Christchurch following the Canterbury earthquakes – implementation of geotechnical lessons learnt
(New Zealand Society for Earthquake Engineering, 2021-04-14)
Liquefaction during the Canterbury Earthquakes caused significant damage to the built environment of Christchurch and posed a significant challenge to the rebuild effort. This paper describes the process the geotechnical ...
A comparison of New Zealand seismic code requirements with other major design codes in the implementation of seismic resilient devices
(New Zealand Society for Earthquake Engineering, 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 ...
Shake table testing of fire sprinkler piping systems typical of New Zealand practices
(New Zealand Society for Earthquake Engineering, 2021-04-14)
An automatic fire sprinkler piping system requires an intricate piping network to feed individual sprinklers spread across the plenum space. In practice, this elaborate piping network is braced against seismic demands ...
The top enablers and barriers of seismic technology adoption in construction
(New Zealand Society for Earthquake Engineering, 2021-04-14)
The slow process of adoption of the new technologies has been identified as a significant issue in the construction industry. In order to address this issue, the top enablers and barriers of the adoption process are needed ...
Risk-Targeted Hazard Spectra for Seismic Design in New Zealand
(New Zealand Society for Earthquake Engineering, 2021-04-14)
The promotion of risk-targeted hazard spectra as the basis of seismic design internationally has increased over the past decade. Risk-targeted hazard spectra are derived through convolution of hazard curves with representative ...
Seismic upgrading of friction-damped steel frames integrated with self-centring devices
(New Zealand Society for Earthquake Engineering, 2021-04-14)
Conventional friction-based damping devices are known for their large energy dissipation capacity and economic benefits compared to other seismic mitigation systems. These devices have been implemented in many practical ...