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- CROSS-AUS Newsletter 3 (1)
- CROSS-AUS Newsletter 4 (1)
- CROSS-AUS [sub-heading only] (2)
- CROSS-UK Newsletter 20 (1)
- CROSS-UK Newsletter 26 (2)
- CROSS-UK Newsletter 36 (1)
- CROSS-UK Newsletter 54 (1)
- CROSS-UK Newsletter 58 (1)
- CROSS-UK Newsletter 68 (1)
- CROSS-UK [sub-heading only] (6)
- CROSS Newsletter (2)
- CROSS Safety Report (21)
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
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
Understanding finite element analysis for pile caps
A reporter questions the validity of using two-dimensional finite element (2D FE) shells to model structural elements such as pile caps.
18 October 2023
CROSS Safety Report
Report ID: 1152
Region: CROSS-UK
Failure of cantilevered stone staircase
During the renovation and change-of-use conversion of a former minor stately home built around 1830, under pedestrian loading, a ‘cantilevered’ stone staircase partially collapsed without warning.
21 February 2023
CROSS Safety Report
Report ID: 1147
Region: CROSS-UK
Further example of incorrect finite element modelling
Concerns in respect of the sufficiency of finite element modelling of masonry walls as part of a reinforced concrete framed building.
20 February 2023
CROSS Safety Report
Report ID: 1145
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
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
Punching shear design spreadsheets
This is a technical note from a reporter about the methods their firm uses for punching shear design because there was concern about punching shear design spreadsheets possibly leading to potentially unsafe situations. .
28 March 2023
CROSS Safety Report
Report ID: 830
Region: CROSS-UK
Accidental partial demolition of a beam
During a site visit, the permanent works design engineer noticed that hydro-demolition of the end of a floor supporting beam had taken place out of sequence. This introduced a pattern of bending moments and shear forces that were not considered in the original design.
6 April 2023
CROSS Safety Report
Report ID: 855
Region: CROSS-UK
Construction period of RAAC planks
A reporter says that there are structural issues with reinforced autoclaved aerated concrete (RAAC) panels installed in a building as late as 1998. This date is significantly later than previous reports suggest as the last significant use of RAAC elements in the UK.
20 February 2023
CROSS Safety Report
Report ID: 954
Region: CROSS-UK
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