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Potentially unsafe buckling resistance checks using software
A number of anomalies were detected in the outputs from a proprietary structural steelwork design program.
6 June 2022
CROSS Safety Report
Report ID: 1075
Region: CROSS-UK
Rotting plywood decking on grandstand
During visual structural inspections of temporary demountable grandstands, a walkway board failed when it was walked on.
31 May 2022
CROSS Safety Report
Report ID: 1092
Region: CROSS-UK
Tower crane base designs
A reporter’s firm has been involved in the design and checking of numerous tower crane bases and have come across many examples where the supplier of the tower crane has supplied incorrect loadings. These incorrect loadings could have led to crane failures had the errors not been spotted.
7 June 2022
CROSS Safety Report
Report ID: 1093
Region: CROSS-UK
Temporary event structures - saddle span type tents
Saddle span type tented structures appear to provide effective solutions to the needs of event organisers. However, they require careful design, erection and management and a list of precautions is given in the Alert.
1 October 2010
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Temporary stage structures
There have been collapses of temporary stage structures in the USA and in Europe during entertainment events.
1 January 2012
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Stress fracture on temporary compact stairs
A stress fracture to a temporary access compact stair unit was identified on site by a scaffold manager.
19 March 2023
CROSS Safety Report
Report ID: 805
Region: CROSS-UK
Vertical cross bracing unbolted on-site
A reporter came across a situation where a vertical cross bracing member of a temporary steel frame structure had been unbolted on-site.
10 February 2023
CROSS Safety Report
Report ID: 861
Region: CROSS-UK
Risks with large screens at public events
The rapid development of large screen technology has resulted in the common use of these systems. The intent of this note is to examine their use from a structural safety perspective.
1 February 2008
CROSS Topic Paper
Region: CROSS-UK
Scaffolds and traffic protection
A reporter is concerned about the lack of consideration shown both in British Standards and industry guidance regarding the risk of impact of vehicles with scaffolds and thereby putting at risk those working on a scaffold.
1 November 2006
CROSS Safety Report
Report ID: 53
Region: CROSS-UK
Unauthorised scaffolding
A reporter raises concerns over a temporary scaffold support that they came across that was over a public highway.
1 July 2008
CROSS Safety Report
Report ID: 111
Region: CROSS-UK
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