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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
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
Metal cladding panels fail and fall to ground
During high winds, a number of metal cladding panels failed and fell to the ground from a tall commercial building in a major UK city.
26 August 2022
CROSS Safety Report
Report ID: 1134
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
Wrong length blind bolts lead to unsafe bridge structure
Bridge strengthening being carried out using blind bolts left a structure in an unsafe condition with traffic loading on it.
20 February 2023
CROSS Safety Report
Report ID: 1185
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
Corrosion concerns on a pedestrian bridge
A reporter is concerned about a pedestrian bridge that may have reduced load capacity due to corrosion at the root of cantilever supports.
17 February 2023
CROSS Safety Report
Report ID: 1161
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
Collapse of unusual hybrid concrete and steel strand truss on school roof
This report concerns the collapse of a school hall roof which resulted from the failure of one of a number of unusual hybrid concrete and steel strand trusses. The trusses consist of a precast reinforced concrete top chord and verticals with a bottom chord of tensioned steel strands. The failure of the truss resulted in the collapse of the supported flat roof local to the failed truss, and da...
25 May 2023
CROSS Safety Report
Report ID: 1227
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
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