Performance of posttensioned seismic retrofit of two stone masonry buildin…

Research papers, The University of Auckland Library

Seismic retrofitting of unreinforced masonry buildings using posttensioning has been the topic of many recent experimental research projects. However, the performance of such retrofit designs in actual design level earthquakes has previously been poorly documented. In 1984 two stone masonry buildings within The Arts Centre of Christchurch received posttensioned seismic retrofits, which were subsequently subjected to design level seismic loads during the 2010/2011 Canterbury earthquake sequence. These 26 year old retrofits were part of a global scheme to strengthen and secure the historic building complex and were subject to considerable budgetary constraints. Given the limited resources available at the time of construction and the current degraded state of the steel posttension tendons, the posttensioned retrofits performed well in preventing major damage to the overall structure of the two buildings in the Canterbury earthquakes. When compared to other similar unretrofitted structures within The Arts Centre, it is demonstrated that the posttensioning significantly improved the in-plane and out-of-plane wall strength and the ability to limit residual wall displacements. The history of The Arts Centre buildings and the details of the Canterbury earthquakes is discussed, followed by examination of the performance of the posttension retrofits and the suitability of this technique for future retrofitting of other historic unreinforced masonry buildings. http://www.aees.org.au/downloads/conference-papers/

BeckerFraserPhotos December 2011 photograph 0330

Images, UC QuakeStudies

An aerial photograph captioned by BeckerFraserPhotos, "Gloucester Street looking west towards Latimer Square. The new Press Building and the Marque/Pacific Towers buildings are at the centre of the photo with the Cathedral in the lower right".

Photograph by Neil Macbeth 017

Images, UC QuakeStudies

A powhiri performed by Ngai Tahu elders to welcome workers of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT). Reverend Peter Beck is standing in the centre and Earthquake Minister Gerry Brownlee to the left. The ceremony was held in Burwood Park.

New Zealand Defence Force photograph 715

Images, UC QuakeStudies

Members of various Search and Rescue teams after their shift in the central city. On the left is Shane from the New Zealand USAR team, centre, Suzy from the New Zealand Police, and right is Terry from Singapore's USAR team.

All Right? Pasifika: Conference Photograph 6

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

BeckerFraserPhotos June 2012 photograph 074

Images, UC QuakeStudies

Photograph captioned by BeckerFraserPhotos, "Clarendon Tower (left), Westpac Bank (centre), Grant Thornton building (white right of the Westpac in the distance), ANZ Bank (white with vertical stripes below the Grant Thornton), BNZ bank (red), and Holiday Inn (right) all under demolition, viewed from Alice in Videoland".

All Right? Pasifika: Conference Photograph 124

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

BeckerFraserPhotos September 2010 photograph 128

Images, UC QuakeStudies

Damage to the Visitors Centre in Kaiapoi, after the September 4th earthquake. The foundations have lifted at the back of the building, giving it a forward lean. Cables have been attached to the balcony over the walkway and braced to posts cemented into the ground. This is to stop the building from slumping further.

BeckerFraserPhotos September 2010 photograph 127

Images, UC QuakeStudies

Damage to the Visitors Centre in Kaiapoi, after the September 4th earthquake. The foundations have lifted at the back of the building, giving it a forward lean. Cables have been attached to the balcony over the walkway and braced to posts cemented into the ground. This is to stop the building from slumping further.

All Right? Pasifika: Conference Photograph 14

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

BeckerFraserPhotos December 2011 photograph 0310

Images, UC QuakeStudies

An aerial photograph captioned by BeckerFraserPhotos, "Central city blocks bounded by Colombo Street, Hereford Street, Cashel Street, and High Street".

All Right? Pasifika: Conference Photograph 83

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 82

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 9

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 10

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 15

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 4

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 22

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 16

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 5

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 19

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 130

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 131

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 127

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 125

Images, UC QuakeStudies

A photograph of conference participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 17

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 18

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 33

Images, UC QuakeStudies

A photograph of musicians performing at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 32

Images, UC QuakeStudies

A photograph of musicians performing at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.

All Right? Pasifika: Conference Photograph 12

Images, UC QuakeStudies

A photograph of participants at the second annual Out of the Heart Pacific Women's Leadership Conference, held at Riccarton Racecourse on 21 May 2016. The conference was sponsored by All Right? and featured posters from the All Right? I am ... Identity project.