tag:blogger.com,1999:blog-6470543006314152962.post5290797058269582374..comments2024-03-11T16:49:27.614+00:00Comments on The Happy Pontist: Australian Bridges: 3. Sydney Harbour BridgeThe Happy Pontisthttp://www.blogger.com/profile/15252272118786667592noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-6470543006314152962.post-26724486338263931472014-06-27T19:15:07.516+01:002014-06-27T19:15:07.516+01:00Great write-up, I'm always interested in how c...Great write-up, I'm always interested in how construction transforms the design of a structure.<br /><br />Not sure if you've posted about it before but the New River Gorge Bridge in West Virginia USA has a similar program for walking the catwalk of the deck truss.<br /><br />I'm one of the lucky ones that actually gets paid to climb them for inspections.<br /><br />EricErichttp://alwayscivil.blogspot.com/noreply@blogger.comtag:blogger.com,1999:blog-6470543006314152962.post-1655931775697176452014-06-27T12:25:58.152+01:002014-06-27T12:25:58.152+01:00Here's an image of the bridge during erection ...Here's an image of the bridge during erection which makes clear why the trusses are so deep at their ends: http://4.bp.blogspot.com/-5xyVr8bnZHo/UnIDtvaaAbI/AAAAAAAAIzk/a_pLvCgK3QI/s1600/Sydney_Harbour_Bridge_Construction.jpg<br /><br />A cantilever bridge of any kind, including a cable-stayed bridge, is more honest to both its temporary and permanent states, but I think either would have been a terrible choice in Sydney.The Happy Pontisthttps://www.blogger.com/profile/15252272118786667592noreply@blogger.comtag:blogger.com,1999:blog-6470543006314152962.post-31936461815442577372014-06-27T11:33:28.603+01:002014-06-27T11:33:28.603+01:00Thanks HP, it is very interesting to read how the ...Thanks HP, it is very interesting to read how the design is so influenced by its mode of construction, which is not obviously apparent to the architectural eye! The difference between the temporary and permanent conditions introduces an interesting dilemma for those who like the design of bridges to reflect their structural 'truth'. Perhaps it is easier to zoom out from this level of concern and simply enjoy the presence of the bridge in its setting. It really is wonderful - iconic in the proper sense - and I am very jealous that you managed to visit it!<br /><br />MKAnonymousnoreply@blogger.com