Structural Safety Information and Reports

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Inadequate design for basement works

An inadequate structural design for alterations to a basement led to structural distress within a substantial five-storey townhouse.

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.

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.

Dangerous building work on domestic project

Temporary propping fails during works to a semi-detached property putting the whole building at risk of collapse.

Incorrect steel lintel installation

A reporter came across several issues, associated with the installation of steel beam lintels, while carrying out inspection works on a 1950’s domestic property.

Problem when launching a prestressed beam

When lowered onto its elastomeric bearings, a 40m span post-tensioned ‘I’ beam started to move towards the outer edge of the pier cap.

Failure of beams in listed building

Conversion and refurbishment work on a listed building led to structural failures of beams and subsequent difficulties in resolving safety matters between the various agencies involved.

Potentially unsafe software design for steel beams

A steel beam design package makes simplified assumptions that may carry risks if not used by competent engineers.

Contractor notches steel transfer beam

A transfer beam with 50mm thick flanges supporting a four-storey building was notched, without approval from the design engineer, to accommodate suspended ceiling fixings.

Steelwork splices do not match design calculations

Remedial works had to be carried out after it was found that steelwork splices on site did not match calculations which were retrospectively provided by a contractor.

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Inadequate design for basement works

Connection fixity considerations for steel frame modelling

Poor quality design leads to failure for a small design and build contract

Dangerous building work on domestic project

Incorrect steel lintel installation

Problem when launching a prestressed beam

Failure of beams in listed building

Potentially unsafe software design for steel beams

Contractor notches steel transfer beam

Steelwork splices do not match design calculations

Submit a report

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