Now showing items 1-20 of 115

    • Design of RSFJ Self-centring Brace for Ultimate Limit State 

      Yousef-Beik, Seyed Mohammad Mehdi; Varier, Sriraj; Hashemi, Ashkan; Zarnani, Pouyan; Quenneville, Pierre (2021-04-14)
      In previous studies, it was shown that the RSFJ brace assembly is prone to elastic buckling for which a new mechanism composed of two telescopic sections was introduced as a remedy to increase the elastic buckling load, ...
    • Identifying vulnerable reinforced concrete buildings in Wellington using a simple assessment methodology 

      Balbirnie, Kieran; Chandramohan, Reagan; Pujol, Santiago; Wright, Joshua (2021-04-14)
      The application of a simple yet effective method to assess reinforced concrete buildings in New Zealand is discussed. It is proposed that this method be used to identify and prioritise the most vulnerable reinforced concrete ...
    • Wall-to-floor connection behavior in a low-damage concrete wall building 

      Yang, Qun; Henry, Rick; Lu, Yiqiu (2021-04-14)
      Following the 2010/2011 Canterbury earthquakes, approximately 60% of multi-story buildings with reinforced concrete walls required demolition.  Both practitioners and researchers have increasingly realized that low-damage ...
    • Evaluation of seismic performance of buildings and infrastructure 

      Cubrinovski, Misko (2021-04-14)
      Observations from the Canterbury and Kaikoura earthquakes are used to illustrate some important factors that often govern the seismic performance of ground, buildings and infrastructure. The talk examines some of the ...
    • ATC-145: Influence of prior shaking on earthquake response and repair requirements for structures and elements 

      Elwood, Ken; Pujol, Santiago; Liel, Abbie; Murray, Polly; Sarrafzadeh, Mehdi; Shah, Prateek; Brooke, Nicholas (2021-04-14)
      ATC-145 is a FEMA funded project aimed at developing a Guide for repair of earthquake damaged buildings to achieve future resilience. Thanks in part to EQC funding, the project includes substantial New Zealand representation. To ...
    • Development of the New Zealand Community Fault Model – version 1.0 

      Van Dissen, Russ; Seebeck, Hannu; Litchfield, Nicola; Barnes, Philip; Nicol, Andy; Langridge, Robert; Barrell, David; Villamor, Pilar; Ellis, Susan; Rattenbury, Mark; Bannister, Stephen; Gerstenberger, Matt; Ghisetti, Francesca; Sutherland, Rupert; Fraser, Jeff; Nodder, Scott; Stirling, Mark; Humphrey, Jade; Bland, Kyle; Howell, Andrew; Mountjoy, Joshu; Moon, Vicki; Stahl, Tim; Spinardi, Francesca; Townsend, Dougal; Clark, Kate; Hamling, Ian; Cox, Simon; de Lange, William; Wopereis, Paul; Johnston, Mike; Morgenstern, Regine; Eccles, Jennifer; Little, Tim; Fry, Bill; Griffin, Jonathan; Townsend, John; Mortimer, Nick; Alcaraz, Samantha; Massiot, Cecile; Rowland, Julie; Muirhead, James; Upton, Phaedra; Hirschberg, Hamish; Lee, Julie (2021-04-14)
      There has been a long-identified need in New Zealand for a community-developed three-dimensional fault model that is accessible and available to all. Over the past year, work has progressed on building and parameterising ...
    • Philosophical reflexions following the Lyttleton 2011 New Zealand Earthquake: Ten years after 

      Quintana Gallo, Patricio; Carradine, David (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 ...
    • Monitoring of lateral stiffness changes for a real building using hysteresis loop analysis 

      Rabiepour, Mohammad; Zhou, Cong; Chase, Geoff; Rodgers, Geoffrey (2021-04-14)
      The BNZ building in Wellington, New Zealand was significantly damaged, and eventually demolished, due to the cumulative impact of three main earthquakes between 2013 and 2016. Although the building was equipped with a set ...
    • Push-over analysis of a 3D architectural wharf structure including soil-structure interaction 

      Lei, Weikuang; Vink, Alex; Storie, Luke; Van Ballegooy, Sjoerd (2021-04-14)
      A new wharf structure was proposed for Te Wānanga in central Auckland. Due to the complex geometry of the proposed wharf, which included plan irregularity, open apertures, deck-suspended planter boxes, suspended nets and ...
    • Impact of Canterbury earthquakes on the evolution of earthquake geotechnical engineering practice  

      Brabhaharan, Pathmanathan (2021-04-14)
      Earthquake geotechnical engineering practice has evolved in New Zealand during the past 40 years.  The 2010-2011 Canterbury earthquakes provided significant impetus to the research and practice. Early evolution commenced ...
    • 1170.5 Reimagined: from a structural designers view 

      Cattanach, Alistair (2021-04-14)
      Our loadings code has adapted and extended to incorporate new knowledge as it has emerged over the last 50+ years: could a re-write encourage engineers to design better buildings? This paper outlines some intentionally ...
    • SESOC Software – Seismic Design Tools 

      Bird, Geoff; McPherson, Allan (2021-04-14)
      SESOC has accumulated a number of structural software design programs, over time, which we actively maintain/enhance, also on occasion developing a new tool for the benefit of our members – and the NZ design fraternity. This ...
    • Seismic upgrading of friction-damped steel frames integrated with self-centring devices 

      Hashemi, Ashkan; Bagheri, Hamed; Zarnani, Pouyan; Quenneville, Pierre (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 ...
    • Upper and lower bound force capacity estimates of lead extrusion damper design force using classical extrusion models 

      Vishnupriya, Vishnupriya; Rodgers, Geoffrey; Chase, Geoff (2021-04-14)
      To reduce seismic vulnerability and the economic impact of seismic structural damage, it is important to protect structures using supplemental energy dissipation devices. High force to volume (HF2V) devices are supplemental ...
    • Experimental loading protocols to evaluate the seismic performance of floor systems 

      De Francesco, Giovanni; Sullivan, Timothy (2021-04-14)
      Major earthquakes, such as the Canterbury and Kaikoura events recorded in New Zealand in 2010 and 2016 respectively, highlighted that floor systems can be heavily damaged. At a reduced or full scale, quasi-static experimental ...
    • Quantifying the Embodied Carbon Cost from Demolitions Following the Canterbury Earthquakes 

      Gonzalez Espinel, Rosa Eva; Stephens, Max; Toma, Charlotte; Elwood, Ken; Dowdell, David (2021-04-14)
      The 2010/2011 Canterbury Earthquake Sequence resulted in severe financial loss, loss of life and disruption in Christchurch due to liquefaction and damage from strong shaking, which led to the widespread displacement of ...
    • Parallel scalability of OpenSees for 2D and 3D ground response analysis problems 

      Eskandarighadi, Mohammad; McGann, Christopher; Hyde, Chris; Trow, Lily; Wang, Sirui (2021-04-14)
      This study investigates the parallel scalability of the OpenSees finite element analysis platform in the context of 2D and 3D ground response analyses. A series of 2D and 3D models ranging from 7500 to 480000 elements are ...
    • A Typical Commercial Low Rise Structure - Case Study 

      Grant, Michelle (2021-04-14)
      The Case study building was designed and built in 2003.  The building is a single storey rectangular shaped 25m x 21m steel portal frame structure with precast concrete panels.  The building is typical of a modern commercial ...
    • Innovative seismic upgrade of Left Bank Art Gallery, Greymouth. 

      Mackenzie, John (2021-04-14)
      The Grey District Council commissioned the strengthening of the C1910 Left Bank Art Galley building in 2018 to preserve its historical value and improve the building’s seismic safety rating. Formally the Bank of New Zealand ...
    • A comparison of New Zealand seismic code requirements with other major design codes in the implementation of seismic resilient devices 

      Varier, Sriraj; Agarwal, Setu; Hashemi, Ashkan; Quenneville, Pierre; Zarnani, Pouyan (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 ...