Design Guide for Steel Railway Bridges
1 INTRODUCTION
Steel has been used in the construction of railway bridges since Victorian times, both in major long-span structures and in more modest spans, such as over local highways. Many of these older steel bridges are still in service, thanks to an on-going programme of maintenance, refurbishment and upgrading to suit changing requirements. Today, most railway bridges are built as replacements for earlier structures, although some entirely new structures are being built on new alignments or routes, most notably for the Channel Tunnel Rail Link.
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