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The management of design related risks: structural, civil and fire engineers
Significant, and tragic, failures involving structures continue to occur: fires in apartment blocks in Milan, London and Taiwan, and structural collapses in Florida and Nigeria being recent examples. This paper gives emphasis to the need for engineers to consider risk management at a fundamental level.
Use of temporary barriers to control access to hazards
This report highlights the risks associated with the use of temporary barriers to control access to unsafe workplaces. It discusses the issues when scaffolding is used as a barrier, and that this should only be considered for use as a short-term temporary barrier.
Grouting of joints between load-bearing prefabricated concrete members
This report highlights the risk of failure if grouted joints between load-bearing prefabricated concrete members are not designed and installed correctly.
Failure of large aluminium composite panel
This report highlights the importance of correctly designed fixings and anchoring systems for cladding panels to buildings to minimize the risk of failure.
The use of cast-in ferrules as structural connections
This report highlights several problems that can arise with structural connections between elements when cast-in ferrules (also known as threaded inserts) are used for the anchorage of reinforcing bars.
Collapse of a reinforcing cage
The reinforcing cage to a blade pier for an overpass bridge collapsed without warning when nearing completion.
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Design and erection of prefabricated (precast) concrete
A correspondent considers that there should always be an experienced temporary works designer for prefabricated concrete structures as many structural engineers do not consider the erection methodology when designing such structures.
Poor quality of structural design on high-rise buildings
The correspondent has been very concerned about the quality of structural engineering on some projects in recent years, particularly for certain high-rise buildings.
Lift pit excavation hazards
A reporter came across an unsafe deep excavation and asks how a geotechnical engineer views the risk of excavation collapse.
Hazard identification for structural design
At the outset of the design, it is recommended that the structural engineer should document the proposed structural design philosophy and the approach to design against disproportionate collapse and agree this with the client.