BeckerFraserPhotos July 2011 photograph 834

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "Workers taking smoko in the sun, Cashel Street".

BeckerFraserPhotos July 2011 photograph 818

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "Abandoned cafe table and chairs, High Street".

Jim Baltaxe WEMO Photograph 093

Images, UC QuakeStudies

A photograph of a table full of food donated to Horseshoe Lake residents by the farming community of Western Southland. A sign behind the table reads, "Horseshoe Lake Residents Association".

WEMO ERT Set 1 - March 2011 - Photograph 125

Images, UC QuakeStudies

A photograph of the rubble from and earthquake-damaged building on Cashel Street. The rubble has landed in a seating area and is piled near the tables and chairs.

Dynamic response of post-tensioned timber frame buildings

Research papers, University of Canterbury Library

An extensive research program is on-going at the University of Canterbury, New Zealand to develop new technologies to permit the construction of multi-storey timber buildings in earthquake prone areas. The system combines engineered timber beams, columns and walls with ductile moment resisting connections using post-tensioned tendons and eventually energy dissipaters. The extensive experimental testing on post-tensioned timber building systems has proved a remarkable lateral response of the proposed solutions. A wide number of post-tensioned timber subassemblies, including beam-column connections, single or coupled walls and column-foundation connections, have been analysed in static or quasi-static tests. This contribution presents the results of the first dynamic tests carried out with a shake-table. Model frame buildings (3-storey and 5-storey) on one-quarter scale were tested on the shake-table to quantify the response of post-tensioned timber frames during real-time earthquake loading. Equivalent viscous damping values were computed for post-tensioned timber frames in order to properly predict their response using numerical models. The dynamic tests were then complemented with quasi-static push and pull tests performed to a 3-storey post-tensioned timber frame. Numerical models were included to compare empirical estimations versus dynamic and quasi-static experimental results. Different techniques to model the dynamic behaviour of post-tensioned timber frames were explored. A sensitivity analysis of alternative damping models and an examination of the influence of designer choices for the post-tensioning force and utilization of column armouring were made. The design procedure for post-tensioned timber frames was summarized and it was applied to two examples. Inter-storey drift, base shear and overturning moments were compared between numerical modelling and predicted/targeted design values.

BeckerFraserPhotos July 2011 photograph 160

Images, UC QuakeStudies

A photograph of a toy dog on a cafe table in Cashel Mall.

BeckerFraserPhotos July 2011 photograph 801

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "Abandoned cafe tables in Cathedral Square".

BeckerFraserPhotos July 2011 photograph 800

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "Abandoned coffee tables in Cathedral Square".

BeckerFraserPhotos July 2011 photograph 161

Images, UC QuakeStudies

A photograph of a toy dog on a cafe table in Cashel Mall.

Rebekah Rogers WEMO Photograph 093

Images, UC QuakeStudies

A photograph of a man at the 'free legal help' table in a temporary emergency management centre set up after the 22 February 2011 earthquake. The table was set up by Community Law Canterbury to offer free legal help to those in need.

BeckerFraserPhotos July 2011 photograph 162

Images, UC QuakeStudies

A photograph of an abandoned toy dog sitting on a cafe table in Cashel Mall.

BeckerFraserPhotos July 2011 photograph 891

Images, UC QuakeStudies

A photograph of salt and pepper shakers still sitting on the tables of an abandoned cafe.

WEMO ERT Set 1 - February 2011 - Photograph 51

Images, UC QuakeStudies

A photograph of a block of shops on Worcester Street. USAR codes have been spray painted on the windows. Chairs, tables, and signs still sit outside the shops.

Mark Lincoln Photograph 106

Images, UC QuakeStudies

Red Cross volunteers distributing care packages to affected residents. A sign in front of the table reads "Free".

Elizabeth Ackermann Photograph 186

Images, UC QuakeStudies

A photograph of a desk and turn table taken during the Residential Access Project. The project gave residents temporary access within the red-zone cordon in order to retrieve items from their homes. The desk and turn table are covered in dust and rubble, and the outer wall is crumbled behind them.

Sonja Farmer Photograph 35

Images, UC QuakeStudies

A photograph of people at a school which was used as a Civil Defence Report Centre after the 22 February 2011 earthquake. Cordon tape has been slung from two picnic tables and from the posts of the veranda behind.

Photograph by Neil Macbeth 039

Images, UC QuakeStudies

Muffins, pastries and club sandwiches set up on long trestle tables at the opening of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT).

Photograph by Neil Macbeth 040

Images, UC QuakeStudies

Muffins, pastries and club sandwiches set up on long trestle tables at the opening of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT).

Photograph by Neil Macbeth 038

Images, UC QuakeStudies

Muffins, pastries and club sandwiches set up on long trestle tables at the opening of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT).

WEMO ERT Set 1 - March 2011 - Photograph 121

Images, UC QuakeStudies

A photograph of several earthquake-damaged and partially-demolished buildings on Manchester Street near the intersection of Lichfield Street. To the right two emergency management personnel are taking photographs from the intersection. On the other side of the intersection there are several chairs, tables, and a couch under a red umbrella. Another member of an emergency management team is sitting on the couch.

Mark Lincoln Photograph 109

Images, UC QuakeStudies

Volunteers distributing care packages to affected residents at a Red Cross aid station on Pages Road. A sign in front of the table reads "Free".

Mark Lincoln Photograph 108

Images, UC QuakeStudies

Volunteers distributing care packages to affected residents at a Red Cross aid station on Pages Road. A sign in front of the table reads "Free".

Photograph by Neil Macbeth 037

Images, UC QuakeStudies

Muffins, pastries and club sandwiches set up on long trestle tables. The breakfast was supplied for the opening of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT).

Rebekah Rogers WEMO Photograph 042

Images, UC QuakeStudies

A photograph of a volunteer from the Wellington Emergency Management Office working at a table in the temporary emergency management offices at the Mainland Foundation Ball Park.

1908 Holiday Trip to Christchurch, City of the Plains

Articles, Lost Christchurch

Christchurch Described Christchurch, New Zealand, is called the “City of the Plains” for  its streets are as level as a billiard table, giving the visitor an impression that each street…

Rebekah Rogers WEMO Photograph 025

Images, UC QuakeStudies

A photograph of a side table and stool outside a temporary café in the Christchurch central city. The café was set up in a house after the 22 February 2011 earthquake.

Rebekah Rogers WEMO Photograph 024

Images, UC QuakeStudies

A photograph of a side table and stool outside a temporary café in the Christchurch central city. The café was set up in a house after the 22 February 2011 earthquake.

WEMO ERT Set 3 - February 2011 - Photograph 197

Images, UC QuakeStudies

A photograph of a seating area on the ground floor of the Crowne Plaza Hotel. Dust and other debris is scattered across the carpet. A plate has fallen off the table and broken on the floor.

Photograph by Neil Macbeth 498

Images, UC QuakeStudies

Members of the Shirley community relaxing around a table set up by the World Mission Society Church of God on North Parade in Shirley. A member of the church can be seen holding a sign advertising free sausages.

Mark Lincoln Photograph 110

Images, UC QuakeStudies

Volunteers distributing care packages to affected residents at a Red Cross aid station on Pages Road. A sign in front of the table reads "Free". Next to them, a man sanitises his hands at a water suppy point.