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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.

Connection fixity considerations for steel frame modelling

This report concerns the modelling of joints when using computer programs. In some cases, engineers are applying rotational releases to joints in models but subsequently designing the connections as rigid. This leaves a fundamental mismatch between analysis and design which may lead to unsafe structural connections argues a reporter.

Incorrect modelling of a cantilever

A steel framed building was incorrectly modelled and designed resulting in excessive deflection of part of the frame even before the frame was loaded with the self-weight of the building.

Floor vibration in a gym

Vibration within the floor structure of a second floor gym gives rise to concern of structural resonance and possible fatigue of structural members.

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.

Misleading instructions for a structural component

A reporter confirms the difficulty encountered whilst endeavouring to ensure cast-in insulated connectors supporting a parapet wall and balustrade were properly fixed.

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Critical welding of structural steelwork missed

Connection fixity considerations for steel frame modelling

Incorrect modelling of a cantilever

Floor vibration in a gym

Metal cladding panels fail and fall to ground

Misleading instructions for a structural component

Share your knowledge

Unsafe design of retrofit cantilever balconies

Concern that the structural design of some recent buildings may not have been checked

Stone cladding panel concerns

Trench sheet naming confusion

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