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CROSS regions
Design responsibility for steel to concrete connections
A reporter provides an illustrative example to support their view that the design responsibility for steel to concrete connections should be shared between the responsible designers of both materials, and that a Lead Designer should ensure all designs are properly integrated.
20 February 2024
CROSS Safety Report
Report ID: 1261
Region: CROSS-UK
Concerns over corrosion of dissimilar metals in fixing cavity wall tie systems
A reporter is concerned about corrosion that may occur between dissimilar metals that can be used in cavity wall tie systems. The reporter has noted that stainless steel and carbon steel may be fixed together in wall cavities, which are damp environments, and that corrosion of dissimilar metals in contact may occur.
24 May 2023
CROSS Safety Report
Report ID: 1186
Region: CROSS-UK
Further example of incorrect finite element modelling
Concerns in respect of the sufficiency of finite element modelling of masonry walls as part of a reinforced concrete framed building.
20 February 2023
CROSS Safety Report
Report ID: 1145
Region: CROSS-UK
Unsafe design of retrofit cantilever balconies
A structural assessment of a number of new balconies being added to an existing building revealed critical concerns in respect of fixings back into the existing brickwork.
26 August 2022
CROSS Safety Report
Report ID: 1128
Region: CROSS-UK
Poor quality design leads to failure for a small design and build contract
An example of a small design and build contract where poor design and management led to an inadequate structure being built.
6 June 2022
CROSS Safety Report
Report ID: 1088
Region: CROSS-UK
Overloading of existing steelwork frame
Inadequate structural investigations and design of alteration works leads to damage to multi-storey flats.
10 March 2022
CROSS Safety Report
Report ID: 1033
Region: CROSS-UK
Inadequate design submissions for alterations to an existing building
An upper storey extension was designed without considering the effect on the structure below.
10 March 2022
CROSS Safety Report
Report ID: 1085
Region: CROSS-UK
Incorrect steel lintel installation
A reporter came across several issues, associated with the installation of steel beam lintels, while carrying out inspection works on a 1950’s domestic property.
13 December 2021
CROSS Safety Report
Report ID: 1008
Region: CROSS-UK
Repeating the same design mistakes
A correspondent who investigates engineering failures has shared common errors which engineers keep repeating.
1 October 2019
CROSS Safety Report
Report ID: 858
Region: CROSS-UK
Contractor uses incorrect fixing bolts for masonry support angles
A correspondent noticed that proprietary masonry support angles specified to support the outer leaf of masonry had been incorrectly connected to the steel beam using carriage bolts.
1 July 2019
CROSS Safety Report
Report ID: 794
Region: CROSS-UK
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