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CROSS regions
Temporary movement joint in slabs not installed correctly
Dowels in temporary movement joints for a slab were not installed correctly, impacting the structural behaviour.
29 March 2021
CROSS Safety Report
Report ID: 998
Region: CROSS-UK
Precast concrete planks - durability and potential safety concerns
A reporter raises concerns over the recent collapses of precast concrete floor units that are installed throughout the UK.
1 April 2007
CROSS Safety Report
Report ID: 77
Region: CROSS-UK
Aerated concrete slabs
A reporter discusses the failure of precast reinforced autoclaved aerated concrete (RAAC) slabs during construction.
1 October 2007
CROSS Safety Report
Report ID: 55
Region: CROSS-UK, CROSS-AUS, CROSS-US
Roof overloading
A flat roof with parapets and internal downpipes collapsed after drainage outlets became blocked.
1 November 2005
CROSS Safety Report
Report ID: 9
Region: CROSS-UK
Collapse of proprietary timber roof
A proprietary timber roof system spanning 8m over a school hall collapsed. The roof was constructed in 1959, and formed from a ply-web beam system, with hardboard ceiling and ply deck and asphalt covering.
1 January 2012
CROSS Safety Report
Report ID: 273
Region: CROSS-UK
Wall collapse from building in city centre - who is responsible?
A 4-4.5m high wall, approximately 18m long, and nearly 40t of bricks collapsed into a road crushing three empty vehicles.
1 January 2013
CROSS Safety Report
Report ID: 306
Region: CROSS-UK
School roof timber truss collapse
A gym/assembly hall roof to a school collapsed suddenly and without warning overnight when fortunately the building was unoccupied.
1 January 2012
CROSS Safety Report
Report ID: 249
Region: CROSS-UK
Partial roof collapse at shopping centre
There was a recent partial roof collapse at a shopping centre which was, says the reporter, built in the early 1970s in a form which may have been used extensively throughout the UK during this period and possibly beyond.
1 October 2013
CROSS Safety Report
Report ID: 395
Region: CROSS-UK
Failure of RAAC planks in schools
A reporter was asked to investigate a reinforced autoclaved aerated concrete (RAAC) roof which had collapsed in a school.
1 April 2020
CROSS Safety Report
Report ID: 908
Region: CROSS-UK, CROSS-AUS, CROSS-US
Roof collapse at primary school
Blocked drainage outlets likely lead to the build-up of water on a school roof which collapsed.
1 July 2020
CROSS Safety Report
Report ID: 958
Region: CROSS-UK
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