Digital Photograph: Earthquake damage to St Joseph's Church, Winchester Street, Lyttelton
One landscape colour digital photograph taken on 25 February 2011 showing earthquake damage to the Catholic Church of St Joseph the Worker in Winchester Street Lyttelton. Photograph shows the eastern side of the church. Photograph taken from St Davids Street.
25 Feb 2011
Associated Event Notes
Lyttelton/Christchurch/Canterbury/South Island/New Zealand
The earthquake damaged eastern wall of the Catholic Church of St Joseph the Worker shows a construction method common to most nineteenth and early twentieth century stone buildings. The exterior and interior of the wall are built of stones held together with lime mortar. The cavity between the two layers of stone is filled with rubble. While walls built in this manner have vertical strength, and can support large roofs, they have little resistance to the horizontal movement caused by an earthquake, particularly as the lime mortar ages and weathers. Once stones are shaken loose from the wall, gravity acting on the stones above can cause unsupported sections to collapse.
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