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CROSS regions
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
The use of cast-in ferrules as structural connections
This report highlights several problems that can arise with structural connections between elements when cast-in ferrules (also known as threaded inserts) are used for the anchorage of reinforcing bars.
30 April 2021
CROSS Safety Report
Report ID: 993
Region: CROSS-AUS
Slipform temporary works design
A reporter was performing a CAT III check on a 14 storey slipform design when they discovered that the temporary works design was inadequate.
5 September 2022
CROSS Safety Report
Report ID: 809
Region: CROSS-UK
Site hoardings blow down
Investigations into timber hoarding failures by the reporter’s firm indicated that the majority of site hoardings are erected with no design whatsoever.
1 October 2007
CROSS Safety Report
Report ID: 83
Region: CROSS-UK
Wind on internal masonry walls during construction
There has been a generic report from a contractor about internal masonry walls during construction following his experiences of failures.
1 October 2007
CROSS Safety Report
Report ID: 82
Region: CROSS-UK
Demolition risks
This report is about the collapse of a flat slab building that occurred overseas whilst the top floor of the building was being demolished onto the next floor down.
1 January 2008
CROSS Safety Report
Report ID: 96
Region: CROSS-UK
Nicoll Highway collapse
The collapse occurred in 2004 as a consequence of the failure of a 33m deep excavation adjacent to Nicoll Highway in Singapore.
1 June 2004
CROSS Topic Paper
Region: CROSS-UK
Concerns with propping design to large excavations
Concerns are raised about the design of propping to large excavations and particularly about the design of the connections for a raking prop to a horizontal waler.
1 January 2019
CROSS Safety Report
Report ID: 298
Region: CROSS-UK
Lifting an unbalanced load
This report relates to the lifting of an item of plant by a tower crane during which the load toppled from the slings causing considerable damage and delay.
1 January 2014
CROSS Safety Report
Report ID: 320
Region: CROSS-UK
Lack of control on site when underpinning
The concern is in relation to the sequencing of construction and the lack of control on site from competent persons during underpinning works.
1 October 2011
CROSS Safety Report
Report ID: 241
Region: CROSS-UK
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