540 Lack of lateral stability in steel frame
This concerns three similar buildings. The roof of Building No 1 was a concrete-composite deck supported on lattice trusses and it collapsed whilst carrying a moderate imposed load. The report relates to the findings on one of the other similar buildings designated Building No 2.
576 Worker trapped in excavation
An operative was trapped within an excavation which collapsed and he received serious injuries. Ground water was found in the excavation but not noted as a hazard. The trench was not supported and the risk of an unsupported trench collapsing was not well enough recognised either before work was undertaken, or whilst it was in progress. Collapse was due to the instability of the trench sides.
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