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Now showing items 41-50 of 115
Drift Demand Estimates for Inelastic Torsional Response of Half-scale Seven-storey RC Specimens
(New Zealand Society for Earthquake Engineering, 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 ...
Influence of damping models on nonlinear seismic response of a base isolated building
(New Zealand Society for Earthquake Engineering, 2021-04-14)
This paper discusses the effect of different damping models on nonlinear seismic response of a 8 storey 2D base isolated (BI) building: (1) Rayleigh damping proportional to the mass and initial stiffness matrices, (2) ...
Performance of Taranaki Volcanic Silts under Cyclic Loading
(New Zealand Society for Earthquake Engineering, 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 ...
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
(New Zealand Society for Earthquake Engineering, 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 ...
How effective is a composting toilet system for protecting human health in an emergency context?
(New Zealand Society for Earthquake Engineering, 2021-04-14)
The Wellington Region is highly vulnerable to large earthquakes as it is crossed by active faults. Expected timeframes of 1 to 2 years for the re-establishment of networked wastewater management services provide urgency ...
Investigation of the Plastic Drift Capacity of RC Frames with Beam-Column Joint Failure
(New Zealand Society for Earthquake Engineering, 2021-04-14)
MBIE/NZSEE guidelines have various methods to assess existing buildings, of which Displacement Based Assessment (DBA) is one. This paper reports on the application of DBA to reinforced concrete (RC) frames where beam-column ...
Finite Element Analyses of Hollow Core Units Subjected to Shear and Torsion
(New Zealand Society for Earthquake Engineering, 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 ...
Determining the realistic rotational stiffness of column base connections in steel seismic resisting systems
(New Zealand Society for Earthquake Engineering, 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 ...
Re-emerging from the rubble: What is delaying regeneration of Christchurch CBD?
(New Zealand Society for Earthquake Engineering, 2021-04-14)
Ten years since the February 2011 earthquakes devastated Christchurch CBD, partially demolished, derelict buildings and poorly maintained vacant sites remain in the post-earthquake landscape. While Christchurch City Council ...
Using a self-centring friction damper as anchorage system for industrial tanks and vessels
(New Zealand Society for Earthquake Engineering, 2021-04-14)
The conventional tank’s connections make the tanks to be either fully restrained or free for rocking motion, which generally creates a high level of force due to lack of ductility or large displacement demand due to uplift ...