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- CROSS-AUS Newsletter 1 (1)
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CROSS regions
Connection fixity considerations for steel frame modelling
This report concerns the modelling of joints when using computer programs. In some cases, engineers are applying rotational releases to joints in models but subsequently designing the connections as rigid. This leaves a fundamental mismatch between analysis and design which may lead to unsafe structural connections argues a reporter.
17 November 2022
CROSS Safety Report
Report ID: 1139
Region: CROSS-UK
Missing elements from 3D modelling
A reporter shares their experience on how their team consistently discover missing elements when they erect lattice towers and masts that have been 3D modelled.
5 September 2022
CROSS Safety Report
Report ID: 792
Region: CROSS-UK
Accelerated corrosion of telecoms mast holding down bolts
During an examination of a 20m high telecoms mast, a reporter found that there had been accelerated corrosion of the galvanised holding down bolts.
1 June 2022
CROSS Safety Report
Report ID: 773
Region: CROSS-UK
Failure of tower crane studs
This report describes how non-standard Grade 10.9 studs used to connect a tower crane mast to a steel grillage failed.
1 January 2017
CROSS Safety Report
Report ID: 600
Region: CROSS-UK
High mast light poles removed from UK site
Five high mast light poles (HMLPs) were removed from a public site as it was considered that there was a possibility of collapse.
1 January 2017
CROSS Safety Report
Report ID: 610
Region: CROSS-UK
Fabrication different from design drawings
A reporter shares their experience of how a propping design they had undertaken was fabricated and installed but not in accordance with the design drawings.
1 July 2015
CROSS Safety Report
Report ID: 513
Region: CROSS-UK
Offshore tower failure
The top two thirds of a three part off-shore lattice mast failed due to problems with some of the connection bolts.
1 January 2014
CROSS Safety Report
Report ID: 358
Region: CROSS-UK
Telecommunications towers and resin anchors
A correspondent shares their concerns following the collapse of a telecommunications tower.
1 April 2013
CROSS Safety Report
Report ID: 315
Region: CROSS-UK
Failure of epoxy fixings due to high temperature
Two mobile phone towers erected on the roofs of nearby buildings collapsed when the epoxy anchors pulled out of the drilled holes.
1 October 2011
CROSS Safety Report
Report ID: 244
Region: CROSS-UK
Unsafe street lighting columns
A reporter raises concerns over the poor construction of street light poles and advertisement boards.
1 April 2009
CROSS Safety Report
Report ID: 98
Region: CROSS-UK
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