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- CROSS-AUS Newsletter 2 (1)
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CROSS regions
'Design' for alterations to a dwelling carried out by an unsuitable person
A reporter was called upon to review a design for the removal of a loadbearing wall during the refurbishment of a residence. A builder was already on site but had stopped work since they considered the engineering design to be unsatisfactory and the structural designer was not responding to their queries. The reporter found that the structural design being followed was far from competent.
21 August 2023
CROSS Safety Report
Report ID: 1236
Region: CROSS-UK
Incompetent design of simple steel beams
This report concerns designs for simple steel beams submitted to building control bodies under Part A of the Building Regulations. The reporter, a checking engineer for a building control body, was not able to accept the effective length and restraints assumed in a number of submitted designs. Most originated from individuals who used proprietary structural design computer packages without, i...
24 May 2023
CROSS Safety Report
Report ID: 1183
Region: CROSS-UK
Overall stability of building proposed to be provided by metal framing and plasterboard
Metal framing and plasterboard was used to provide lateral stability to a building. The form of construction was later deemed to be unsuitable and extensive remedial works had to be carried out.
24 May 2023
CROSS Safety Report
Report ID: 468
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
Punching shear design spreadsheets
This is a technical note from a reporter about the methods their firm uses for punching shear design because there was concern about punching shear design spreadsheets possibly leading to potentially unsafe situations. .
28 March 2023
CROSS Safety Report
Report ID: 830
Region: CROSS-UK
Failure of cantilevered stone staircase
During the renovation and change-of-use conversion of a former minor stately home built around 1830, under pedestrian loading, a ‘cantilevered’ stone staircase partially collapsed without warning.
21 February 2023
CROSS Safety Report
Report ID: 1147
Region: CROSS-UK
Construction period of RAAC planks
A reporter says that there are structural issues with reinforced autoclaved aerated concrete (RAAC) panels installed in a building as late as 1998. This date is significantly later than previous reports suggest as the last significant use of RAAC elements in the UK.
20 February 2023
CROSS Safety Report
Report ID: 954
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
Inadequate design for basement works
An inadequate structural design for alterations to a basement led to structural distress within a substantial five-storey townhouse.
21 November 2022
CROSS Safety Report
Report ID: 1132
Region: CROSS-UK
Critical welding of structural steelwork missed
The designer of a steelwork roof frame found a critical fabrication error when inspecting steelwork on site before it was erected.
21 November 2022
CROSS Safety Report
Report ID: 1126
Region: CROSS-UK
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