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Images, UC QuakeStudies

A photograph of Majestic House on the corner of Manchester Street and Lichfield Street. The building has been fenced off and shipping containers are stacked on the road to the left, reinforcing the facade of the neighbouring building.

Images, UC QuakeStudies

A photograph of Majestic House on the corner of Manchester Street and Lichfield Street. The building has been fenced off and shipping containers are stacked on the road to the left, reinforcing the facade of the neighbouring building.

Images, UC QuakeStudies

A photograph of the intersection of High Street, Lichfield Street and Manchester Street. Stacks of coloured shipping containers can be seen supporting the facades of buildings on both Lichfield Street and Manchester Street.

Images, UC QuakeStudies

A photograph of Majestic House on the corner of Manchester Street and Lichfield Street. The building has been fenced off and shipping containers are stacked on the road to the left, reinforcing the facade of the neighbouring building.

Images, UC QuakeStudies

A view down High Street, looking north-west through the cordon fence near the Tuam Street intersection. On the left a line of shipping containers support the facade of a damaged building. Rubble from demolished buildings can be seen in the distance.

Images, UC QuakeStudies

A view down High Street, looking north-west through the cordon fence near the Tuam Street intersection. On the left a line of shipping containers support the facade of a damaged building. Rubble from demolished buildings can be seen in the distance.

Images, UC QuakeStudies

A photograph of a removed roof on the ground on the corner of Tuam Street and Manchester Street. A stack of shipping containers can be seen in the distance, against the remaining facade of the Excelsior Hotel building.

Images, UC QuakeStudies

A photograph of a cleared building site on High Street. Three shipping containers are stacked against the remaining facade of the Excelsior Hotel building on the left. The badly-damaged McKenzie & Lewis building on Tuam Street can be seen in the distance.

Images, UC QuakeStudies

A photograph looking north down Manchester Street. Coloured shipping containers have been stacked in front of the remaining facade of the Excelsior Hotel building on the right and empty building sites on the left are fenced off.

Images, UC QuakeStudies

A photograph of the intersection of Manchester and Tuam Street, taken next to the partially-demolished Odeon Theatre on Tuam Street. Shipping containers are stacked against the remaining facade of the Excelsior Hotel building.

Images, UC QuakeStudies

A photograph of the intersection of Manchester and Tuam Street, taken next to the partially-demolished Odeon Theatre on Tuam Street. A stack of shipping containers can be seen in the distance, against the remaining facade of the Excelsior Hotel building.

Images, UC QuakeStudies

A photograph of the intersection of Manchester Street, Lichfield Street and High Street. Lichfield Street has been blocked with fences and barricades and shipping containers have been stacked in front of the remaining facade of the Excelsior Hotel building.

Images, UC QuakeStudies

A photograph taken near the intersection of Manchester Street, Lichfield Street and High Street. The old Post Office building, now housing C1 Espresso, can be seen in the distance with Ronnie Van Hout's sculpture on the roof. Coloured shipping containers support the remaining front facade of the Excelsior Hotel building.

Images, UC QuakeStudies

A photograph taken near the intersection of Manchester Street, Lichfield Street and High Street. The old Post Office building, now housing C1 Espresso, can be seen in the distance with Ronnie Van Hout's sculpture on the roof. Coloured shipping containers support the remaining front facade of the Excelsior Hotel building.

Research papers, The University of Auckland Library

The connections between walls of unreinforced masonry (URM) buildings and flexible timber diaphragms are critical building components that must perform adequately before desirable earthquake response of URM buildings may be achieved. Field observations made during the initial reconnaissance and the subsequent damage surveys of clay brick URM buildings following the 2010/2011 Canterbury, New Zealand earthquakes revealed numerous cases where anchor connections joining masonry walls or parapets with roof or floor diaphragms appeared to have failed prematurely. These observations were more frequent for adhesive anchor connections than for through-bolt connections (i.e. anchorages having plates on the exterior façade of the masonry walls). Subsequently, an in-field test program was undertaken in an attempt to evaluate the performance of adhesive anchor connections between unreinforced clay brick URM walls and roof or floor diaphragms. The study consisted of a total of almost 400 anchor tests conducted in eleven existing URM buildings located in Christchurch, Whanganui and Auckland. Specific objectives of the study included the identification of failure modes of adhesive anchors in existing URM walls and the influence of the following variables on anchor load-displacement response: adhesive type, strength of the masonry materials (brick and mortar), anchor embedment depth, anchor rod diameter, overburden level, anchor rod type, quality of installation and the use of metal mesh sleeve. In addition, the comparative performance of bent anchors (installed at an angle of minimum 22.5o to the perpendicular projection from the wall surface) and anchors positioned horizontally was investigated. Observations on the performance of wall-to-diaphragm connections in the 2010/2011 Canterbury earthquakes, a snapshot of the performed experimental program and the test results and a preliminary proposed pull-out capacity of adhesive anchors are presented herein.

Research papers, The University of Auckland Library

The connections between walls of unreinforced masonry (URM) buildings and flexible timber diaphragms are critical building components that must perform adequately before desirable earthquake response of URM buildings may be achieved. Field observations made during the initial reconnaissance and the subsequent damage surveys of clay brick URM buildings following the 2010/2011 Canterbury, New Zealand earthquakes revealed numerous cases where anchor connections joining masonry walls or parapets with roof or floor diaphragms appeared to have failed prematurely. These observations were more frequent for adhesive anchor connections than for through-bolt connections (i.e. anchorages having plates on the exterior façade of the masonry walls). Subsequently, an in-field test program was undertaken in an attempt to evaluate the performance of adhesive anchor connections between unreinforced clay brick URM walls and roof or floor diaphragm. The study consisted of a total of almost 400 anchor tests conducted in eleven existing URM buildings located in Christchurch, Whanganui and Auckland. Specific objectives of the study included the identification of failure modes of adhesive anchors in existing URM walls and the influence of the following variables on anchor load-displacement response: adhesive type, strength of the masonry materials (brick and mortar), anchor embedment depth, anchor rod diameter, overburden level, anchor rod type, quality of installation and the use of metal mesh sleeve. In addition, the comparative performance of bent anchors (installed at an angle of minimum 22.5o to the perpendicular projection from the wall surface) and anchors positioned horizontally was investigated. Observations on the performance of wall-to-diaphragm connections in the 2010/2011 Canterbury earthquakes, a snapshot of the performed experimental program and the test results and a preliminary proposed pull-out capacity of adhesive anchors are presented herein. http://www.confer.co.nz/nzsee/ VoR - Version of Record

Research papers, The University of Auckland Library

The connections between walls of unreinforced masonry (URM) buildings and flexible timber diaphragms are critical building components that must perform adequately before desirable earthquake response of URM buildings may be achieved. Field observations made during the initial reconnaissance and the subsequent damage surveys of clay brick URM buildings following the 2010/2011 Canterbury, New Zealand earthquakes revealed numerous cases where anchor connections joining masonry walls or parapets with roof or floor diaphragms appeared to have failed prematurely. These observations were more frequent for the case of adhesive anchor connections than for the case of through-bolt connections (i.e. anchorages having plates on the exterior façade of the masonry walls). Subsequently, an in-field test program was undertaken in an attempt to evaluate the performance of adhesive anchor connections between unreinforced clay brick URM walls and roof or floor diaphragm. The study consisted of a total of almost 400 anchor tests conducted in eleven existing URM buildings located in Christchurch, Whanganui and Auckland. Specific objectives of the study included the identification of failure modes of adhesive anchors in existing URM walls and the influence of the following variables on anchor load-displacement response: adhesive type, strength of the masonry materials (brick and mortar), anchor embedment depth, anchor rod diameter, overburden level, anchor rod type, quality of installation and the use of metal foil sleeve. In addition, the comparative performance of bent anchors (installed at an angle of minimum 22.5o to the perpendicular projection from the wall surface) and anchors positioned horizontally was investigated. Observations on the performance of wall-to-diaphragm connections in the 2010/2011 Canterbury earthquakes and a snapshot of the performed experimental program and the test results are presented herein. http://hdl.handle.net/2292/21050