File:Three Arches (14131424116) (2).jpg
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www.youtube.com/watch?v=FI62OKZZrek On a walk around my neighbourhood April 24, 2014 Christchurch New Zealand. Engineering of Knox Church rebuild, world first. The $5.5 million project of rebuilding the severely earthquake damaged Knox Presbyterian Church, on the corner of Victoria Street and Bealey Avenue, will move a step closer tomorrow (Sat 14 Dec) when four precast, post tensioned buttresses will be lifted over the roof of the church and then positioned in place before being connected to the existing timber structure. The type of engineering involved is understood to have never been used before and is considered a world first. The concrete buttresses range from 6.3m to 8.3m high with the largest buttress weighing approximately 13 tonne. The design of the buttresses is a collaboration between Wilkie and Bruce and Aurecon. Aurecon engineers proposed the idea of “rocking column” buttresses being used and completed the detail design of the buttresses. Wilkie and Bruce took the structural concept and added the architectural features to come up with the final look of the buttresses. By using a low damage design approach used here with “rocking column” philosophy the building will be able to be reused quickly following an earthquake. The post-tensioning keeps the load carrying capability and restores the column back to vertical after the earthquake. External dissipaters on the sides of the buttresses dissipate energy via yielding. All structural damage is therefore confined to these dissipaters which have been designed to be replaceable following an earthquake. Once the dissipaters are replaced the building would be back to its pre-earthquake strength. For more information:http://www.scoop.co.nz/stories/AK1312/S00450/engineering-of-knox-church-rebuild-world-first.htm |
| Date | |
| Source | Three Arches |
| Author | Jocelyn Kinghorn from Christchurch, New Zealand |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This image was originally posted to Flickr by Jocey K at https://www.flickr.com/photos/48627921@N05/14131424116. It was reviewed on 30 October 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| current | 16:03, 30 October 2014 | | 1,000 × 656 (162 KB) | Schwede66 (talk | contribs) | Transferred from Flickr via Flickr2commons |
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