Search

found 8264 results

Images for earthquake; more images...

Images, UC QuakeStudies

A photograph of the earthquake damage to Quinns of Papanui Road. The front walls of the store have crumbled, exposing the rooms inside. Wire fencing and road cones have been placed around the building as a cordon.

Images, Canterbury Museum

One landscape colour digital photograph taken on 25 February 2011 showing damage to the Lyttelton Police Station on Sumner Road and London Street. Photograph taken looking west from St Davids Street. In December 2011, the New Zealand Police decided that the Lyttelton Police Station would be demolished. The building, which opened in 1882 was re...

Images, Canterbury Museum

One landscape colour digital photograph taken on 6 September 2011 showing the temporary theatre erected on the site of the Volcano Café on London Street for a production of Macbeth by The Loons Circus Theatre Company. The green canopy supported on shipping containers was used to shelter the audience. The stage area was the demolition site partia...

Research papers, University of Canterbury Library

Currently there is a worldwide renaissance in timber building design. At the University of Canterbury, new structural systems for commercial multistorey timber buildings have been under development since 2005. These systems incorporate large timber sections connected by high strength post-tensioning tendons, and timber-concrete composite floor systems, and aim to compete with existing structural systems in terms of cost, constructability, operational and seismic performance. The development of post-tensioned timber systems has created a need for improved lateral force design approaches for timber buildings. Current code provisions for seismic design are based on the strength of the structure, and do not adequately account for its deformation. Because timber buildings are often governed by deflection, rather than strength, this can lead to the exceedence of design displacement limitations imposed by New Zealand codes. Therefore, accurate modeling approaches which define both the strength and deformation of post-tensioned timber buildings are required. Furthermore, experimental testing is required to verify the accuracy of these models. This thesis focuses on the development and experimental verification of modeling approaches for the lateral force design of post-tensioned timber frame and wall buildings. The experimentation consisted of uni-direcitonal and bi-directional quasi-static earthquake simulation on a two-thirds scale, two-storey post-tensioned timber frame and wall building with timber-concrete composite floors. The building was subjected to lateral drifts of up to 3% and demonstrated excellent seismic performance, exhibiting little damage. The building was instrumented and analyzed, providing data for the calibration of analytical and numerical models. Analytical and numerical models were developed for frame, wall and floor systems that account for significant deformation components. The models predicted the strength of the structural systems for a given design performance level. The static responses predicted by the models were compared with both experimental data and finite element models to evaluate their accuracy. The frame, wall and floor models were then incorporated into an existing lateral force design procedure known as displacement-based design and used to design several frame and wall structural systems. Predictions of key engineering demand parameters, such as displacement, drift, interstorey shear, interstorey moment and floor accelerations, were compared with the results of dynamic time-history analysis. It was concluded that the numerical and analytical models, presented in this thesis, are a sound basis for determining the lateral response of post-tensioned timber buildings. However, future research is required to further verify and improve these prediction models.