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CROSS regions
Cladding failure in strong winds
A reporter writes with concerns about a repeat failure of building cladding, in severe but not exceptional winds, that saw panels fall to the public street below.
17 February 2023
CROSS Safety Report
Report ID: 1172
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
Incorrectly fixed sheets blow off parapet
This report concerns aluminium coping sheets that blew off the parapet of a block of flats under construction. The reporter says a fierce wind blew off several sheets which fell to the ground about 9m below. A building and a car were damaged but thankfully no one was hurt, although the potential for personal injury or death was significant.
25 May 2023
CROSS Safety Report
Report ID: 1180
Region: CROSS-UK
Cladding subcontractor change of connection strategy led to failure
As part of their final design submission, a cladding subcontractor changed the connection strategy for their cladding system. The project structural engineer did not identify the design change and the cladding loading resulted in excessive deflection and some twisting of the primary perimeter steel.
21 August 2023
CROSS Safety Report
Report ID: 1189
Region: CROSS-UK
Failure to grout steel frame bases
A reporter describes a problem that arose during the construction stage of a project when a steel frame supporting pipe and cable racks was loaded before the frame baseplates were grouted.
24 May 2023
CROSS Safety Report
Report ID: 1190
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
Overloading a portal frame with suspended services
A reporter designing a single storey portal frame used a standard roof service loading of 0.25kN/m2. After the project was completed, a tenant for the unit took over fit out and added a considerable amount of sprinkler pipework into the roof. This created local overloading.
21 August 2023
CROSS Safety Report
Report ID: 1195
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
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
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