Design Challenges of the Horotiu Paa Bridge - Maximising Structural Efficiency and Economy

2016 ◽  
Author(s):  
Liam Edwards
Keyword(s):  
New Zealand ◽  
Weathering Steel ◽  
Steel Bridge ◽  
Design Development ◽  
Economic Prosperity ◽  
Total Length ◽  
The Government ◽  
National Significance ◽  
Bridge Spans ◽  
Design Challenges

The Horotiu Paa Bridge, also known as the Karapiro Gully Bridge is the largest weathering steel bridge in New Zealand. Construction of the bridge was recently completed in November 2015. The bridge is part of the Cambridge section of the Waikato Expressway in New Zealand. The Waikato Expressway is one of the seven state highways, named the Roads of National Significance, identified by the government as essential to New Zealand's economic prosperity. The bridge spans over the Karapiro Gully with a total length of 200m, consisting of four 50m long equal spans and is 24m wide, servicing 4 lanes of traffic.<p> This paper discusses the design development, key design aspects, innovations and technical challenges for the design of the Horotiu Paa Bridge.

scholarly journals Corrosion Assessment of a Weathering Steel Bridge Structure after 30 Years of Service

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3788
Author(s):  
Agnieszka Królikowska ◽  
Leszek Komorowski ◽  
Izabela Kunce ◽  
Damian Wojda ◽  
Katarzyna Zacharuk ◽  
...  
Keyword(s):  
Phase Analysis ◽  
Diffraction Method ◽  
Visual Assessment ◽  
Product Layer ◽  
Carbon Steels ◽  
Bridge Engineering ◽  
Quantitative Phase Analysis ◽  
Weathering Steel ◽  
Steel Bridge ◽  
Structural Problems

The first steel with improved resistance towards atmospheric corrosion, the so-called weathering steel, was patented in the USA in 1933 and was initially used for coal railway cars, and after that, in building and bridge engineering. Weathering steels show higher corrosion resistance than carbon steels in many types of atmosphere due to their ability to form a compact, stable, adherent and protective patina during the time of exposure. Morphological evaluation of the appearance of the corrosion product layer, together with phase analysis of its components, can enable determination of the type of patina and the degree of protection of the steel. To support the visual assessment of a patina, a check based on the qualitative and quantitative phase analysis of its components may be carried out, and the PAI (Protective Ability Index) can be calculated. The estimation of the corrosion processes on original Polish-made weathering steel (12HNNbA) was carried out on a 30-year-old bridge in Poland. There are some structural problems within the deck derived not only from corrosion but also steel cracking, both inside and outside the boxes, at different heights. Fourteen representative samples of patina were analysed and their phase structures were determined by the X-ray powder diffraction method. The PAIs were determined and analysed.

Medical Device Regulation and the Proposed Therapeutic Products Bill: Devising a New Regime

2021 ◽  
Vol 52 (2) ◽  
pp. 319-342
Author(s):  
Laura Hardcastle
Keyword(s):  
Patient Safety ◽  
New Zealand ◽  
Medical Devices ◽  
Cosmetic Products ◽  
Regulatory Oversight ◽  
Speed To Market ◽  
The Government ◽  
The Right ◽  
Promote Patient Safety ◽  
Medical Device Regulation

Despite medical devices being integral to modern healthcare, New Zealand's regulation of them is decidedly limited, with repeated attempts at reform having been unsuccessful. With the Government now indicating that new therapeutic products legislation may be introduced before the end of the year, the article considers the case for change, including to promote patient safety, before analysing the draft Therapeutic Products Bill previously proposed by the Ministry of Health, and on which any new legislation is expected to be based. It concludes that, while the proposed Bill is a step in the right direction, introducing regulatory oversight where there is currently next to none, there is still significant work to be done. In particular, it identifies a need to clarify whether the regime is indeed to be principles-based and identifies further principles which might be considered for inclusion. It further proposes regulation of cosmetic products which operate similarly to medical devices to promote safety objectives, while finding a need for further analysis around the extent to which New Zealand approval processes should rely on overseas regulators. Finally, it argues that, in an area with such major repercussions for people's health, difficult decisions around how to develop a framework which balances safety with speed to market should not be left almost entirely to an as yet unknown regulator but, rather, more guidance from Parliament is needed.

scholarly journals Coping with a New Curriculum: The Evolving Schools Program at the Carter Observatory, New Zealand

1998 ◽  
Vol 162 ◽  
pp. 267-272
Author(s):  
K. Leather ◽  
F. Andrews ◽  
R. Hall ◽  
W. Orchiston
Keyword(s):  
New Zealand ◽  
Education Program ◽  
Science Curriculum ◽  
National Observatory ◽  
Education Programs ◽  
The Public ◽  
New Science ◽  
Making Sense ◽  
Astronomical Research ◽  
The Government

Carter Observatory is the National Observatory of New Zealand and was opened in 1941. For more than ten years the Observatory has maintained an active education program for visiting school groups (see Andrews, 1991), and education now forms one of its four functions. The others relate to astronomical research; public astronomy; and the preservation of New Zealands astronomical heritage (see Orchiston and Dodd, 1995).Since the acquisition of a small Zeiss planetarium and associated visitor centre in 1992, the public astronomy and education programs at the Carter Observatory have witnessed a major expansion (see Orchiston, 1995; Orchiston and Dodd, 1996). A significant contributing factor was the introduction by the government of a new science curriculum into New Zealand schools in 1995 (Science in the New Zealand Curriculum, 1995). “Making Sense of Planet Earth and Beyond” comprises one quarter of this curriculum, and the “Beyond” component is astronomy.

scholarly journals Free and Frank Advice and the Official Information Act

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Andrew Kibblewhite ◽  
Peter Boshier
Keyword(s):  
Decision Making ◽  
New Zealand ◽  
Government Agency ◽  
Government Officials ◽  
The Public ◽  
Good Government ◽  
Work Programme ◽  
The Government ◽  
The Right ◽  
Official Information

Concern exists that New Zealand hasn’t struck the right balance between two potentially competing principles of good government: officials should provide free and frank advice to ministers, and the public should have opportunities to participate in decision making and hold the government to account. Steps we have taken to address this include: strengthening constitutional underpinnings for free and frank advice (Cabinet Manual changes and issuing expectations for officials); a work programme to improve government agency practice in relation to the Official Information Act; and the Office of the Ombudsman reducing uncertainty about when advice can be withheld by issuing new principles-based guidance and providing more advisory services.

scholarly journals Architecture Without Expectation: Designing a third place for mental wellbeing in the community

2021 ◽  
Author(s):  
◽  
Kezia Fairbrother
Keyword(s):  
Mental Health ◽  
New Zealand ◽  
Mental Wellbeing ◽  
Evidence Based ◽  
Third Place ◽  
Therapeutic Landscapes ◽  
Spatial Design ◽  
Aotearoa New Zealand ◽  
The Government ◽  
Maori Health

<p>In 2018, the government published the report of its inquiry into mental health and addiction in Aotearoa New Zealand, which called for a ‘paradigm shift’ in the country’s approach to mental wellbeing. This research portfolio explores the role architecture has to play in this shift, acknowledging the problematic historical associations of architecture and mental health. In doing so, the work aims to establish principles for a new architectural typology of mental health care, outside of conventional institutions. It explores contemporary approaches to wellness, and integrates research from several bodies of theoretical and evidence-based research into a new creative practice within architecture. Specifically, the research draws on theory around nonrepresentational therapeutic landscapes, third place and evidence based design. These inform creative explorations of the therapeutically affective qualities of naturally-sourced materials. The findings of this explorations are transferred to spatial design using a ‘multiplicity’ approach based on nonrepresentational theory and Māori health models, which is then applied to a specific site in Wellington, New Zealand. Finally, architectural applications for this research are proposed in the form of a community-based third place to support mental health and wellbeing.</p>

scholarly journals Manufacturing Consensus? New Zealand Press Attitudes Toward the Labour Movement in 1890

2021 ◽  
Author(s):  
◽  
James Keating
Keyword(s):  
New Zealand ◽  
Trade Unions ◽  
Land Reform ◽  
Trade Union Movement ◽  
Labour Movement ◽  
Union Movement ◽  
The Social ◽  
The Press ◽  
National Significance ◽  
Transformative Impact

<p>This thesis investigates the attitudes of New Zealand newspapers to the social and economic tensions exacerbated by the emergence of a newly assertive labour movement in 1890, culminating in the August-November Maritime Strike, and the 5 December General Election. Through detailed analysis of labour reporting in six newspapers (Evening Post, Grey River Argus, Lyttelton Times, New Zealand Herald, Otago Daily Times, Press) this thesis examines contemporary conceptions of New Zealand society and editors’ expectations of trade unions in a colony that emphasised its egalitarian mythology. Although the establishment of a national press agency in 1880 homogenised the distribution of national and international news, this study focuses on local news and editorial columns, which generally reflected proprietors’ political leanings. Through these sites of ideological contest, conflicting representations of the ascendant trade union movement became apparent. While New Zealand newspapers sympathised with the striking London dockers in 1889, the advent of domestic industrial tensions provoked a wider range of reactions in the press. Strikes assumed a national significance, and the divisions between liberal and conservative newspapers narrowed. To varying degrees both considered militant action by organised labour a threat to the colony’s peace and prosperity – sentiments that pervaded their reporting. The New Zealand Maritime Strike confirmed these prejudices and calcified the perception of organised labour’s malevolence. Despite the year’s upheavals, this thesis contends that the press struggled to comprehend labour’s political ambitions, ignoring the unprecedented mobilisation of thousands of new voters, shifting public opinion, and the transformative impact of electoral reform. Distracted by the mainstream political obsession with land reform and convinced that public prejudices, stoked by their own reporting, would obviate a labour presence in the new parliament, the victory of the Liberal-labour coalition confounded the publishing establishment.</p>

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