This report outlines the findings of two independent studies by PTL Structural Consultants (PTL) and Holmes Consulting LP
(HCLP) which have validated the use of an earthquake induced lateral force distribution, develop by Dr D.
Gardiner (at University of Canterbury). The method for determining the lateral force distribution for
designing the diaphragms of buildings is known as “the pseudo-Equivalent Static Analysis (pESA)”.
Principal Investigator Dr R Henry, University of Auckland
After the Canterbury Earthquakes the Royal Commission and SESOC raised issues relating to the design of lightly reinforced and precast concrete walls. This research project looked to address and give guidance on the following:
The 2017 Partner workshop was held at Opus in Christchurch on Tuesday 5 December. There were 22 presentations giving an overview of the work undertaken throughout the year. The presentation was followed up by a poster session allowing participants the opportunity to ask in-depth questions of the project managers and researchers. The posters can be downloaded below.
The International Association for the Seismic Performance of Non-Structural Elements (SPONSE) workshop was held at UC in April 2016, hosted by the Quake Centre.
The New Zealand Pipe Inspection Manual (NZPIM) is a document that is extensively used by the water industry to assess the condition of waste and storm water pipes. It was last updated in 2006. Since that time, there have been a large number of technical advances. In addition, the NZ$100 million spent on inspecting the Christchurch 3 waters network after the Canterbury Earthquake Sequence provided a number of lessons that need to be captured in an update. As part of the Evidenced-based Decision Making for 3 Waters Networks project, the Quake Centre with the asistance of EQC engaged ProjectMax to undertake a full review and scope of the required changes to the NZPIM. This exercise has now been completed and the report is out for comment across the water sector.
The Quake Centre Annual Partner Workshop was help at Beca, Pitt St, Auckland on Tuesday 15 Nov 17. The poster relating to each presentation can be downloaded here.
Pipe Renewals (working title)
The Pipe Renewals Programme is a collaboration between the Quake Centre, Water NZ and IPWEA to develop an integrated suite of guidance material. This guidance aims to foster national alignment of best practice investment decision making across the whole of New Zealand. It is expected that this project will take about 10 years to finish. The document below sets out the road-map for this programme.
Dry wall partitions are vulnerable to seismic damage even in relatively minor earthquakes. This paper outlines a detail that provides a low damage solution that will protect partitions reasonably severe earthquakes. This cost and time associated with construction is no more than current practices.
Quake Centre manager
In 2014, the total replacement value of the 3 waters assets in New Zealand was estimated to be about NZ$45.2 billion. As these assets are upgraded or replaced, many difficult decisions will need to be made in respect to the trade-offs between Levels of Service, capital costs, operating costs and management of risk. The aim of this project is to provide guidance and tools to enable New Zealand Water organisations to implement advanced asset management processes to develop inspection, maintenance and renewal strategies for pipework in potable water, waste water and storm water systems.