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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
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
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)
Checking structural calculations
A reporter worked for a small consultancy as a graduate structural engineer where their calculations were never checked.
3 August 2023
CROSS Safety Report
Report ID: 816
Region: CROSS-UK
Trench sheet naming confusion
A reporter involved with temporary works design has been made aware that there are two suppliers providing a trench sheet under the same name.
30 June 2022
CROSS Safety Report
Report ID: 814
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
Private Building Control data protection use
A reporter needed details of a domestic extension from a local authority who said that an application had been made for the original work by a private company, but under the Data Protection Act they could not release any drawings or documentation.
6 April 2023
CROSS Safety Report
Report ID: 825
Region: CROSS-UK
Major safety defects in hospital
A number of construction defects were found in a hospital following the inspection of the external wall system.
29 March 2021
CROSS Safety Report
Report ID: 826
Region: CROSS-UK
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