摘要：On February 22,2011, Christchurch in New Zealand experienced a magnitude 6.3 earthquake which devastated many of the buildings in the city, especially those made of masonry construction. janus facades was asked to inspect the facade of a fourteen storey building which had a curtainwall-clad tower and granite and tile cladding on the three storey podium. The unitised curtainwall was not well designed. It did not have adequately sized joints in accordance with industry standards to absorb seismic effects and it was never really weathertight. Most of the damage to the curtainwall was caused by the damaged structure. Damage to the structure and internal fittings was also observed.