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CROSS Safety Report

Concrete encasement falls from bridge girder

Report ID: 559 Published: 1 July 2016 Region: CROSS-UK

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Overview

Concerns were raised after sections of concrete from the bottom flange of a single encased girder became detached and fell onto an operational line.

Key Learning Outcomes

For asset owners and operators:

  • Regular inspections can help to detect any critical safety issues which may need to be addressed

  • A properly implemented inspection and maintenance programme can also help keep a structure safe and operational

Full Report

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Overnight, sections of concrete from the bottom flange of a single encased girder became detached and fell onto an operational line which is adjacent to two platforms (Figure 1 and 2). A significant risk exists of further concrete falling onto passengers and into the path of oncoming rail traffic.

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Figure 1: encased beams
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Figure 2: fallen concrete encasement

A significant number of beams with large areas of hollowness have been identified on both lines, which will need further investigation to verify if remedial works are required. The suspended ceiling prevents examination of the structure above the island platform.

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