Lessons learnt from 2011 Christchurch earthquakes

Palermo, Alessandro; Wotherspoon, Liam; Wood, J. H.; Chapman, Howard; Scott, Allan; Hogan, Lucas; Kivell, Anton; Camnasio, Elena; Yashinsky, Mark; Bruneau, Michel; Chouw, Nawawi

doi:10.5459/bnzsee.44.4.319-333

Cited by 19 publications

(4 citation statements)

References 1 publication

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“…Road bridges, which are the subject of this paper, are typically two-or three-span, short-to moderate-length bridges (20 m to 70 m long). Overall, in the 2010-2011 earthquakes road bridges performed relatively well compared to other engineering structures (Palermo et al 2011. They suffered low to moderate damage, and all but one bridge were in service almost immediately after each significant event.…”

Section: Overview Of Damage To Bridgesmentioning

confidence: 94%

Spreading-Induced Damage to Short-Span Bridges in Christchurch, New Zealand

et al. 2014

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This paper discusses the performance of road bridges during the 2010–2011 Canterbury earthquakes and focuses on the response of bridges in liquefying soils undergoing lateral spreading. A characteristic spreading-induced mechanism for short-span bridges with rigid superstructures is presented and explored using four well-documented case studies. A series of pseudo-static analyses are then used to investigate the observed response of the bridges and their pile foundations in particular. Deformations and damage to the piles are evaluated and correlated with the spreading displacements, and key factors controlling the pile response and the development of the spreading-induced damage mechanism are identified.

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Section: Overview Of Damage To Bridgesmentioning

confidence: 94%

Spreading-Induced Damage to Short-Span Bridges in Christchurch, New Zealand

et al. 2014

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“…Further details on the structural and system performance of the road and transport can be found in the TCLEE report (Eidinger and Tang, 2011). A detailed account of the bridge response to the 22 nd February earthquake can be see in Palermo et al (2011).…”

Section: Figure 16: Pre-earthquake Seismic Improvements To Bridges Onmentioning

confidence: 99%

Lifelines performance and management following the 22 February 2011 Christchurch earthquake, New Zealand

Giovinazzi

Wilson

Davis³

et al. 2011

BNZSEE

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A magnitude 6.3 earthquake struck the city of Christchurch at 12:51pm on Tuesday 22 February 2011. The earthquake caused 182 fatalities, a large number of injuries, and resulted in widespread damage to the built environment, including significant disruption to the lifelines. The event created the largest lifeline disruption in a New Zealand city in 80 years, with much of the damage resulting from extensive and severe liquefaction in the Christchurch urban area. The Christchurch earthquake occurred when the Canterbury region and its lifelines systems were at the early stage of recovering from the 4 September 2010 Darfield (Canterbury) magnitude 7.1 earthquake. This paper describes the impact of the Christchurch earthquake on lifelines by briefly summarising the physical damage to the networks, the system performance and the operational response during the emergency management and the recovery phase. Special focus is given to the performance and management of the gas, electric and road networks and to the liquefaction ejecta clean-up operations that contributed to the rapid reinstatement of the functionality of many of the lifelines. The water and wastewater system performances are also summarized. Elements of resilience that contributed to good network performance or to efficient emergency and recovery management are highlighted in the paper.

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“…The Canterbury Earthquake Sequence (2010-11) (CES) resulted in strong ground shaking and ground deformation damage to various infrastructure in Christchurch, thereby setting up a benchmark in terms of damage observations, repair strategies, loss estimations, etc. The bridge performance contrast observed during the two earthquakes can be summarised as follows:  Most of the damage observed to road bridges during the CES was attributed to liquefaction and lateral spreading effects [9]. Whereas, the dominant cause of damage during the Kaikōura Earthquake is mainly attributed to ground shaking intensity.…”

Section: Bridge Performance In Contrast To the Canterbury Earthquake mentioning

confidence: 99%

Performance of road bridges during the 14 November 2016 Kaikōura Earthquake

Palermo

Liu

Rais

et al. 2017

BNZSEE

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The transport infrastructure was majorly affected by the 14th November 2016 Kaikōura Earthquake. Severe vertical and horizontal peak ground accelerations generated high inertial forces, land-slides, and liquefaction. Most of the bridges in the Hurunui, Malborough and Kaikōura districts were critical nodes to the railway and road networks. In total, 904 road bridges across those districts were affected. Two reached the life safety limit state, suffering severe damage, however, most of the affected bridges experienced only minor to moderate damage. This paper describes the structural performance of the most severely damaged bridges based on observations made from site inspections. In addition to this, several performance issues have arisen from this event and are posed in this paper, hopefully to be addressed in the near future.

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Lessons learnt from 2011 Christchurch earthquakes

Cited by 19 publications

References 1 publication

Spreading-Induced Damage to Short-Span Bridges in Christchurch, New Zealand

Spreading-Induced Damage to Short-Span Bridges in Christchurch, New Zealand

Lifelines performance and management following the 22 February 2011 Christchurch earthquake, New Zealand

Performance of road bridges during the 14 November 2016 Kaikōura Earthquake

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