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- CROSS-AUS Newsletter 3 (1)
- CROSS-AUS Newsletter 4 (2)
- CROSS-AUS [sub-heading only] (3)
- CROSS-UK Newsletter 2 (1)
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- CROSS-UK Newsletter 58 (5)
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- CROSS-UK [sub-heading only] (28)
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CROSS regions
Punching shear in concrete slabs at perimeter columns
A reporter raises concerns about the underestimation of bending moments in perimeter columns when assessing punching shear in adjacent concrete slabs. Punching shear failures can be brittle and catastrophic. Designers need to include the appropriate ultimate moment in the design actions.
14 October 2022
CROSS Safety Report
Report ID: 1122
Region: CROSS-AUS
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
Continuously threaded reinforcing bar
This report highlights the difficulty of inspecting continuously threaded reinforcing bars to ensure that they have been adequately inserted into the cast-in ferrules.
2 August 2022
CROSS Safety Report
Report ID: 1074
Region: CROSS-AUS
Failure of prestressed hollowcore units during storage and transport
A reporter shares their experience of the failure of prestressed hollowcore units during storage and transport.
1 June 2022
CROSS Safety Report
Report ID: 748
Region: CROSS-UK
Concern over modelling of concrete frame building for construction stage
Independent check shows inadequate modelling of concrete frame building with transfer slab.
10 March 2022
CROSS Safety Report
Report ID: 1073
Region: CROSS-UK
Concerns about punching shear in a flat slab
This report concerns potential shear failures in flat slabs. This originates from inconsistent design and detailing of the shear reinforcement where a proprietary shear link system is assumed in the design but not followed in detailing.
13 December 2021
CROSS Safety Report
Report ID: 1050
Region: CROSS-UK
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Waterproofing exposed concrete slabs
This report highlights that water ingress into buildings continues to be a problem and discusses the role of the structural engineer when dealing with waterproofing of exposed concrete slabs. It shows how this can be achieved by careful design and detailing of the reinforced concrete structure and by close collaboration of all parties involved.
25 November 2021
CROSS Safety Report
Report ID: 959
Region: CROSS-AUS
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
Inadequate punching shear reinforcement in flat slabs
This report highlights how remedial works were required in a number of residential buildings after inadequate punching shear reinforcement was identified.
14 October 2020
CROSS Safety Report
Report ID: 950
Region: CROSS-UK
Fire risks in multi-storey car parks
A reporter is concerned by the reluctance of the industry to voluntarily take on board and proactively react to the lessons learnt from the fire at the Echo Arena car park in Liverpool.
14 October 2020
CROSS Safety Report
Report ID: 940
Region: CROSS-UK