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Images, eqnz.chch.2010

Known by the locals as the "Manager's House" of the large brick and tile works which was situated nearby. Established by the Austin brothers in 1863 the brickworks were named after the town of Farnley in Yorkshire England, from where the family had come. I remember the brickworks as a child and I think they were demolished in the 1970's. Very sa...

Images, eqnz.chch.2010

Known by the locals as the "Owner's House" of the large Farnley Brick and Tile Works which was situated nearby. Established by the Austin brothers in 1863 the brickworks were named after the town of Farnley in Yorkshire England, from where the family had come. I remember the brickworks as a child and I think they were demolished in the 1970's. V...

Images, UC QuakeStudies

Large cracks run through the brick cladding of this house in Wainoni. The photographer comments, "During the numerous earthquakes in Christchurch the land which ran alongside the Avon river on Avonside Drive slumped towards the waterway. Houses which were wooden framed and had an external brick veneer started to sink into the liquefied soil. This caused the brick walls to crack, but the houses' occupants though shook up were saved by the wooden framework from the houses collapsing on them".

Research papers, The University of Auckland Library

The large number of earthquake-prone vintage unreinforced masonry (URM) buildings in many seismically active parts of the world results in a need for minimally invasive and cost-effective strengthening techniques to enhance the poor earthquake performance of such buildings. The objective of the research reported here was to investigate the applicability of using near-surface-mounted (NSM) carbon fiber–reinforced polymer (CFRP) strips as a retrofitting technique for improving the in-plane shear strength and displacement capacity of multi-leaf URM walls constructed using solid clay brick masonry. The use of this technique for repairing earthquake damaged URM walls was also investigated. Ten multileaf wall panels measuring approximately 1,200×1,200  mm 1,200×1,200  mm were constructed using recycled vintage solid clay bricks and retrofitted using NSM CFRP strips with varying reinforcement ratios. These panels were loaded in diagonal compression, and the results were compared with those obtained from testing of nominally identical unretrofitted wall panels constructed using the same materials. In addition, four wall panels extracted from existing buildings were tested in an as-built condition and then later retested after being repaired using the NSM CFRP strip technique. Based on the experimental results it was established that the NSM CFRP strip technique provides a simple and cost effective method for substantially enhancing the shear strength and displacement capacity of understrength or damaged URM wall panels http://ascelibrary.org/journal/jccof2