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Structural safety of reinforced autoclaved aerated concrete (RAAC) planks
A Theme Page to raise awareness of and encourage knowledge sharing on the structural safety of RAAC planks.
CROSS Theme Page
Region: CROSS-UK, CROSS-AUS, CROSS-US
Reinforced autoclaved aerated concrete in roofing in schools
This document is for building owners to help them to identify the presence of reinforced autoclaved aerated concrete (RAAC) and to check whether any further investigation or action is needed.
10 February 2021
Third party content
Publisher: Department for Education
Final report of the Advisory Committee on Falsework (Bragg report)
This Her Majesty's Stationery Office (HMSO) report, better known as the Bragg report, published in 1975, set requirements for erection and stability of these temporary structures.
1 January 1975
Third party content
Publisher: Health and Safety Executive (HSE)
Collapse of brick arch overbridge during demolition
A reporter describes a project where a flanking brick arch collapsed during the demolition of two multi-span bridges over rail lines.
30 June 2022
CROSS Safety Report
Report ID: 573
Region: CROSS-UK
Failure of cast-in wire lifting loops on manhole cover slabs
A cast-in wire lifting loop failed when lifting a 4m diameter precast manhole cover slab into place.
23 May 2022
CROSS Safety Report
Report ID: 629
Region: CROSS-UK
Fatigue failure of bridge cross-girder
During a planned examination of a bridge, a cross-girder was found to have failed via fatigue.
23 May 2022
CROSS Safety Report
Report ID: 743
Region: CROSS-UK
Overall stability of building proposed to be provided by metal framing and plasterboard
Metal framing and plasterboard was used to provide lateral stability to a building. The form of construction was later deemed to be unsuitable and extensive remedial works had to be carried out.
24 May 2023
CROSS Safety Report
Report ID: 468
Region: CROSS-UK
Failure of vertical bracing system in coffee shop
A reporter noticed that a bolt at a low level connecting node of the vertical bracing system in a public building had failed.
30 June 2022
CROSS Safety Report
Report ID: 759
Region: CROSS-UK
Dangerous defects in curtain wall glazing
This report concerns a 5m high vertical glazing system in which the fixings for a panel failed after only four years because of a lack of co-ordination between designers and contractors.
6 April 2023
CROSS Safety Report
Report ID: 762
Region: CROSS-UK
Corrosion of bridge girder beams
Severe corrosion of bridge girder beams was found during intrusive inspections.
23 May 2022
CROSS Safety Report
Report ID: 772
Region: CROSS-UK
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