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Steelwork splices do not match design calculations
Remedial works had to be carried out after it was found that steelwork splices on site did not match calculations which were retrospectively provided by a contractor.
29 March 2021
CROSS Safety Report
Report ID: 916
Region: CROSS-UK
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
Incorrectly installed tension control bolts could have led to serious consequences
A reporter finds incorrectly installed system HRC preload bolt assemblies, better known as tension control bolts, during a site inspection of a new highway bridge over a railway. The incorrectly fitted bolts could have had major structural implications, and led to other safety risks, if the installation error had not been spotted.
24 May 2023
CROSS Safety Report
Report ID: 1196
Region: CROSS-UK
Girder collapse
The failure was of a two-storey high trussed girder with a 36m span, designed to carry a composite steel and concrete floor at the lower level and a trussed roof at higher level.
1 March 2006
CROSS Safety Report
Report ID: 30
Region: CROSS-UK
Steelwork connection design
A reporter was asked to design connections for a multi-storey building for which the frame had been designed by another engineer. The result was a near collapse situation.
1 March 2006
CROSS Safety Report
Report ID: 25
Region: CROSS-UK
Inadequate billets used in precast concrete connections
Whilst completing a third-party design appraisal, a correspondent found that solid steel billets intended to form the primary shear transfer mechanism between concrete beams and columns were insufficient for this purpose.
1 April 2019
CROSS Safety Report
Report ID: 705
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
Steel balconies fixed to precast hollowcore floor planks
A reporter is concerned about the suitability of providing a retrofitted steel balcony requiring moment connections to the sides of typical hollowcore floor planks.
1 July 2017
CROSS Safety Report
Report ID: 620
Region: CROSS-UK
Unconnected steel beam connection
A reporter describes how they came across a completely inadequate steel connection while attending site for another matter.
1 October 2017
CROSS Safety Report
Report ID: 646
Region: CROSS-UK
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