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- CROSS-AUS Newsletter 3 (1)
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CROSS regions
Risks from off-site manufacture and hybrid construction
A reporter was recently investigating a ‘near miss’ involving concrete construction in which pre-cast and in-situ concrete were used in combination.
1 January 2016
CROSS Safety Report
Report ID: 529
Region: CROSS-UK
Plastic spacers in slabs
A reporter has spotted plastic rails about 1.5 m long being used to support the bottom rebar mat of a slab.
1 July 2015
CROSS Safety Report
Report ID: 431
Region: CROSS-UK
Balcony construction defects of residential flats
A reporter's firm have been undertaking structural assessments of cantilevered reinforced concrete walkways, which in the majority of cases have been found to be under strength.
1 April 2014
CROSS Safety Report
Report ID: 435
Region: CROSS-UK
Computer analysis and slab design twisting moments
A reporter has noticed on many occasions when checking reinforced concrete and post-tensioned slab designs that engineers often neglect to consider twisting moments when arriving at slab design moments.
1 October 2014
CROSS Safety Report
Report ID: 441
Region: CROSS-UK
Unconservative design of flat slab due to software modelling issues
A reporter discusses how a design/modelling problem caused an under-designed reinforced concrete (RC) slab to be constructed.
1 April 2020
CROSS Safety Report
Report ID: 886
Region: CROSS-UK
Propping of post-tensioned slabs during construction
A reporter raises their concerns after an infill slab strip was not poured in time which resulted in overloading of the slab below during a concrete pour.
1 April 2020
CROSS Safety Report
Report ID: 873
Region: CROSS-UK
Failure of RAAC planks in schools
A reporter was asked to investigate a reinforced autoclaved aerated concrete (RAAC) roof which had collapsed in a school.
1 April 2020
CROSS Safety Report
Report ID: 908
Region: CROSS-UK, CROSS-AUS, CROSS-US
Overloading metal decking in temporary state
During construction of steel structures with composite metal decking floors, a reporter has observed numerous occasions when the metal decking was close to being overloaded.
1 August 2020
CROSS Safety Report
Report ID: 919
Region: CROSS-AUS
Missing punching shear reinforcement in concrete slabs
A reporter raises concerns of how two separate engineers observed the omission of design punching shear reinforcement prior to slab pours being undertaken on two different sites.
1 April 2020
CROSS Safety Report
Report ID: 906
Region: CROSS-UK
Emergency motorway lane closure during concrete repairs
This report highlights how confusion during concrete repair works led to an unplanned emergency lane closure of a bridge carrying a motorway.
1 July 2020
CROSS Safety Report
Report ID: 926
Region: CROSS-UK