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Hazard identification for structural design
At the outset of the design, it is recommended that the structural engineer should document the proposed structural design philosophy and the approach to design against disproportionate collapse and agree this with the client.
1 September 2017
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Reinforced aerated autoclaved concrete planks found on pitched roof of 1990s hospital building
A building constructed in the early 1990s has been found to contain reinforced aerated autoclaved concrete (RAAC) planks. This date is important since it is much later than the previously thought last significant use of RAAC in buildings in the UK and potentially affects the scope of buildings that could require screening for RAAC problems.
26 August 2022
CROSS Safety Report
Report ID: 1125
Region: CROSS-UK
RAAC planks in a 1970s shopping centre
An existing large shopping centre built circa 1975 had a number of external storerooms and loading bays with roofs constructed using reinforced autoclaved aerated concrete (RAAC) planks. The planks had deflected to the extent that they needed replacing.
20 February 2023
CROSS Safety Report
Report ID: 1155
Region: CROSS-UK
Tower crane - failure of loadbearing part
A tower crane suffered a failure of one of its four main legs approximately 12m below the slew ring.
1 October 2014
CROSS Safety Report
Report ID: 399
Region: CROSS-UK
Snow sliding off industrial building roofs
A lean-to roof at lower level than the main roof of a large industrial building collapsed and ground level equipment was damaged due to a sliding snow.
1 October 2014
CROSS Safety Report
Report ID: 438
Region: CROSS-UK
Disproportionate collapse assessment of large panel system buildings
A reporter has become concerned by the approach being taken by some engineers to assess the risk of disproportionate collapse due to fire in large panel system (LPS) buildings.
1 January 2020
CROSS Safety Report
Report ID: 885
Region: CROSS-UK
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