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Freeze and thaw of another RHS
Further to reports about the freezing of water in hollow sections a correspondent has sent photos of a section of mild steel RHS that was removed from a bridge and shows the bulging that can occur.
1 January 2015
CROSS Safety Report
Report ID: 485
Region: CROSS-UK
Freeze/thaw effects on RHSs and unexpected hydrogen generation
A reporter provides their views of the freezing effects on rectangular hollow sections (RHSs) and how this could be related to Liquid Metal Assisted Cracking.
1 October 2014
CROSS Safety Report
Report ID: 434
Region: CROSS-UK
Fire protection of mixed hot/cold rolled steel structure
This report describes how a high-rise building had to be remediated after it was found there was insufficient fire protection encasement of structural elements.
1 July 2020
CROSS Safety Report
Report ID: 921
Region: CROSS-UK
Inadequate bolted connections supporting stairs
Concerns are raised over the safe design and installation of rolled steel angles (RSA) used to support heavy precast stair and landing units.
1 April 2017
CROSS Safety Report
Report ID: 615
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
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
Dangerous balcony construction
During an investigation of a balcony construction, a reporter discovered serious inadequacies related to a total lack of coordination between sub-contract work packages coupled with a lack of appropriate supervision.
1 January 2018
CROSS Safety Report
Report ID: 694
Region: CROSS-UK
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