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CROSS Safety Report

Bridge component failures

Report ID: 141 Published: 1 July 2009 Region: CROSS-UK

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Overview

A reporter raises their concerns that not enough thought is being given to structural redundancy and buildability for bridges.

Key Learning Outcomes

For civil and structural design engineers:

  • Careful consideration should be given to structural redundancy and the buildability of bridges

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A reporter is concerned that not enough thought is being given to structural redundancy and buildability for bridges. They think that buildability should now be automatic and a legal requirement under CDM Regulations. The need for structural redundancy is so obvious, especially regarding crucial small components that it is (nearly) a surprise it has to be done over again. 

Especially considering recent bolt connection failures and gusset plates. They say it is a shame if the issues (apparently) became concentrated around price. The two envelope system comes to mind, wherein technical excellence and price are considered separately - without the first, the second should not come into it, cheapest or otherwise.

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