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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
Small bridge inspection
A student discovered corrosion on a small bridge while carrying out a survey for their final project/dissertation.
1 March 2006
CROSS Safety Report
Report ID: 23
Region: CROSS-UK
Documentation for imported large diameter steel pins
A reporter raises concerns over the possibility that foreign steel with poor, confusing or misleading documentation, is being used on safety critical structures in the UK.
1 January 2013
CROSS Safety Report
Report ID: 299
Region: CROSS-UK
Steel stud failures during bridge construction
This report concerns the failure of a steel studs during construction works on a new bridge associated with major road improvements.
1 October 2012
CROSS Safety Report
Report ID: 332
Region: CROSS-UK
Concern about bridge hangers
A reporter is concerned that a failure in recent years involving the cast connections at each end of vertical bars, which connected to a bow string arch at one end and to a bridge deck at the other, may be in use elsewhere.
1 July 2012
CROSS Safety Report
Report ID: 222
Region: CROSS-UK
Bridge bearing design and installation - further concerns raised
A reporter says that the issue of successful co-ordination between designers, contractors and specialist bearing suppliers is one they have experienced.
1 January 2019
CROSS Safety Report
Report ID: 796
Region: CROSS-UK
Failure of pile load test arrangement
A pile was being load-tested, for confirmation of design pile loads for the foundations of a road bridge, when the web of the deep steel beam used in the testing arrangement buckled.
1 January 2015
CROSS Safety Report
Report ID: 484
Region: CROSS-UK
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
Deflection of bridge girder under load
A report was received from a bridge examiner to say outer main girder of a short span railway bridge was moving up to 30mm under load.
1 July 2016
CROSS Safety Report
Report ID: 557
Region: CROSS-UK
Defects found in previously repaired bridge
While carrying out strengthening work on a bridge, there was concern that by removing the non-structural encasement, alternative load paths had been removed.
1 April 2016
CROSS Safety Report
Report ID: 564
Region: CROSS-UK
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