A Newsletter from CROSS-UK containing reports on structural safety issues.
Note: this Newsletter was published by CROSS (Confidential Reporting on Structural Safety). Since March 2021, Confidential Reporting on Structural Safety is renamed Collaborative Reporting for Safer Structures (CROSS).
Contractor installs incorrect steel grade
A reporter came across an issue where the fabricator had used cold formed S235 commodity steel SHS rather than the specified hot formed S275 structural steel SHS.
Lack of masonry wall ties causes failure
A reporter states that they have come across the presence of serious defects in masonry construction in the past and have no doubt that many other engineers have had similar experiences.
Architect conducts structural design of sway frame for domestic project
A reporter looked at a project recently where the drawings had been produced by the architect, including a structural design.
Corrosion causes collapse of steel floodlight mast at football club
This is an alert that was issued by a local authority responsible for enforcing the Safety of Sports Grounds Act after a floodlighting mast collapsed at a football club's ground.
Combustible insulation under rainscreen cladding
Whilst walking past a tall residential building under construction, a reporter observed the facade build-up to consist of combustible insulation with a rainscreen cladding.
Inadequate design of cantilever glass barriers
A reporter has observed a growing number of cases where cantilever glass balustrades in public buildings are, in their view, inadequately designed.
Building extension causes snow drifting failure
The reporter feels that structural engineers are failing to realise the implications of creating a valley or an upstand and the potential for snow drift to occur.
Common use of S235 cold rolled steel instead of S355 hot rolled steel
It has come to a reporter's attention that some local fabricators are purchasing S235 cold rolled hollow sections rather than the specified S355 hot rolled sections, as they are easier and cheaper to obtain.
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