【摘 要】
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The M48 Severn Bridge is a 988 m span suspension bridge carrying the M48 motorway across the River Severn in the UK.The bridge is substandard to current UK
【出 处】
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The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
The M48 Severn Bridge is a 988 m span suspension bridge carrying the M48 motorway across the River Severn in the UK.The bridge is substandard to current UK assessment codes but is permitted to continue in operation on the basis that application of the Highways Agency document,BD79,which allows a risk-based management approach to bridge operation,indicates the risk presented is acceptable given the mitigation and monitoring in place; this includes Weigh in Motion (WIM) monitoring of traffic,acoustic monitoring of the main cables and a permanent dehumidification system to protect the main cables from corrosion.
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