tag:blogger.com,1999:blog-6658085720825863941.post7966774054207463626..comments2023-04-02T03:28:11.593+01:00Comments on London Connections: New GE19 bridge gains temporary extensionMr Thanthttp://www.blogger.com/profile/01380941017046817239noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6658085720825863941.post-60477706105275556722008-08-23T20:00:00.000+01:002008-08-23T20:00:00.000+01:00Its actually called a launch nose. Its purpose is ...Its actually called a launch nose. Its purpose is that the bridge beams do not have the capacity in bending beyond a certain point of cantilever. It is very different from army type bridges, typically based on the original Bailey bridge design which are modular in construction, and designed for push launch constructin.<BR/>The bridge across bishopsgate is that of a bow string arch, the first time that a bridge of this form with true hangers has been used for rail infrastructure in the UK. hope this is of some interest.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6658085720825863941.post-2935595171387243592008-03-17T07:54:00.000+00:002008-03-17T07:54:00.000+00:00It's a pilot beam used to align the bridge during ...It's a pilot beam used to align the bridge during the push. They are frequently used by the Army Royal Engineers. Roughly the civil engineering equivalent of tying a light thread to an arrow/rocket which is in turn tied to a small diameter rope tied to a hawser etc - used at sea.<BR/>MwmbwlsAnonymousnoreply@blogger.com