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- CROSS-AUS Newsletter 3 (1)
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CROSS regions
Collapse of unusual hybrid concrete and steel strand truss on school roof
This report concerns the collapse of a school hall roof which resulted from the failure of one of a number of unusual hybrid concrete and steel strand trusses. The trusses consist of a precast reinforced concrete top chord and verticals with a bottom chord of tensioned steel strands. The failure of the truss resulted in the collapse of the supported flat roof local to the failed truss, and da...
25 May 2023
CROSS Safety Report
Report ID: 1227
Region: CROSS-UK
Failure of beams in listed building
Conversion and refurbishment work on a listed building led to structural failures of beams and subsequent difficulties in resolving safety matters between the various agencies involved.
30 July 2021
CROSS Safety Report
Report ID: 1016
Region: CROSS-UK
Proper design and use of cold rolled steel frames
A reporter has been designing structures in cold rolled steel for approximately twenty years, mainly portal frame buildings, and some concerns.
1 January 2008
CROSS Safety Report
Report ID: 93
Region: CROSS-UK
Further report on freezing of water in hollow sections
A reporter has a further warning on the issue of freeze/thaw cracking following report 434 after their firm encountered a similar problem on a UK project and investigated the matter.
1 January 2017
CROSS Safety Report
Report ID: 579
Region: CROSS-UK
Defects in wrought iron girder from 1879
Defects were found in the strut members of a three span wrought iron girder from 1879 while major strengthening and refurbishment works were being carried out.
1 April 2016
CROSS Safety Report
Report ID: 570
Region: CROSS-UK
Concrete encasement falls from bridge girder
Concerns were raised after sections of concrete from the bottom flange of a single encased girder became detached and fell onto an operational line.
1 July 2016
CROSS Safety Report
Report ID: 559
Region: CROSS-UK
Dangerous modification during construction of five storey block of flats
A reporter was asked to investigate a five storey timber framed block of flats after the leaseholder of the top floor reported gaps appearing between oak floorboards.
1 January 2018
CROSS Safety Report
Report ID: 699
Region: CROSS-UK
No responsibility for damaged footbridge
A reporter describes how they tried to raise concerns over a damaged footbridge but could not determine who ownership.
1 July 2018
CROSS Safety Report
Report ID: 723
Region: CROSS-UK
Square Hollow Section (SHS) expansion due to freezing
A reporter has come across problems in British Columbia (temp range -30 degrees to +40 degrees) of cracking to square hollow sections (SHS) due to the ingress of water and freezing.
1 April 2017
CROSS Safety Report
Report ID: 641
Region: CROSS-UK
Near miss when modifying brickwork
A reporter’s experience of creating a new door opening in an existing brick wall on the first floor of an old building is not always as simple as it would appear.
1 February 2020
CROSS Safety Report
Report ID: 847
Region: CROSS-AUS
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