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CROSS regions
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
Concern about rebending starter bars
This report concerns the bending and rebending of starter bars on site during the construction of a multi storey tower. The reporter considered that such a practice could compromise the structure under extreme load conditions.
24 May 2023
CROSS Safety Report
Report ID: 1164
Region: CROSS-UK
Preparation of holes in concrete for chemical anchors
Reinforcement intended to be resin anchored into concrete was not anchored, because the resin did not cure, due to contamination within the holes.
6 June 2022
CROSS Safety Report
Report ID: 1096
Region: CROSS-UK
Misleading instructions for a structural component
A reporter confirms the difficulty encountered whilst endeavouring to ensure cast-in insulated connectors supporting a parapet wall and balustrade were properly fixed.
26 August 2022
CROSS Safety Report
Report ID: 1127
Region: CROSS-UK
Missing starter bars
During an inspection the reporter observed that all the continuity starter bars projecting from the wall kicker were in fact loose.
1 July 2007
CROSS Safety Report
Report ID: 37
Region: CROSS-UK
Stability compromised in school hall
A reporter highlights construction issues that occurred during the construction of a new school hall.
1 January 2012
CROSS Safety Report
Report ID: 242
Region: CROSS-UK
Precast concrete canopies in housing
A reporter warns that precast concrete cantilever canopies which are slender and monolithic with lintels over entrance doorways can be vulnerable to sudden collapse.
1 January 2009
CROSS Safety Report
Report ID: 126
Region: CROSS-UK
Aerated concrete slabs
A reporter discusses the failure of precast reinforced autoclaved aerated concrete (RAAC) slabs during construction.
1 October 2007
CROSS Safety Report
Report ID: 55
Region: CROSS-UK, CROSS-AUS, CROSS-US
Precast concrete planks - durability and potential safety concerns
A reporter raises concerns over the recent collapses of precast concrete floor units that are installed throughout the UK.
1 April 2007
CROSS Safety Report
Report ID: 77
Region: CROSS-UK
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