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Site testing of post-installed fasteners in concrete
This report describes a situation where site testing of post-installed fasteners in concrete was undertaken by a contractor as an alternative to adopting the design data from the manufacturer in an attempt to justify an increased design capacity for the fasteners.
2 August 2022
CROSS Safety Report
Report ID: 1091
Region: CROSS-AUS
Punching shear in concrete slabs at perimeter columns
A reporter raises concerns about the underestimation of bending moments in perimeter columns when assessing punching shear in adjacent concrete slabs. Punching shear failures can be brittle and catastrophic. Designers need to include the appropriate ultimate moment in the design actions.
14 October 2022
CROSS Safety Report
Report ID: 1122
Region: CROSS-AUS
Continuously threaded reinforcing bar
This report highlights the difficulty of inspecting continuously threaded reinforcing bars to ensure that they have been adequately inserted into the cast-in ferrules.
2 August 2022
CROSS Safety Report
Report ID: 1074
Region: CROSS-AUS
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
Installation of epoxy resin adhesive for reinforcing bar anchors
Potentially dangerous installation of resin-anchored reinforcing bars, where epoxy resin was applied at the top of the hole after bars had been inserted.
7 November 2023
CROSS Safety Report
Report ID: 1225
Region: CROSS-AUS
Waterproofing exposed concrete slabs
This report highlights that water ingress into buildings continues to be a problem and discusses the role of the structural engineer when dealing with waterproofing of exposed concrete slabs. It shows how this can be achieved by careful design and detailing of the reinforced concrete structure and by close collaboration of all parties involved.
25 November 2021
CROSS Safety Report
Report ID: 959
Region: CROSS-AUS
Grouting of joints between load-bearing prefabricated concrete members
This report highlights the risk of failure if grouted joints between load-bearing prefabricated concrete members are not designed and installed correctly.
30 April 2021
CROSS Safety Report
Report ID: 961
Region: CROSS-AUS
Aerated concrete slabs
A reporter discusses the failure of precast reinforced autoclaved aerated concrete (RAAC) slabs during construction.
1 October 2007
CROSS Safety Report
Report ID: 55
Region: CROSS-UK, CROSS-AUS, CROSS-US
Safety concern about the design of thin concrete walls
The reporter raises their concern about the design of thin concrete load-bearing walls, sometimes supporting 10 or more storeys.
1 July 2019
CROSS Safety Report
Report ID: 815
Region: CROSS-AUS
Dislodged finger plate on highway bridge
A correspondent received a report about a 1.5m long section of a steel finger plate expansion joint on a highway bridge that had been inadequately fixed and became dislodged.
1 February 2020
CROSS Safety Report
Report ID: 879
Region: CROSS-AUS
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