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Sudden failure of storage silo
A 5,000 ton capacity storage silo containing ground granulated blast-furnace slag (ggbs) split apart suddenly and without warning onsite at a concrete production facility.
Concerns about punching shear in a flat slab
This report concerns potential shear failures in flat slabs. This originates from inconsistent design and detailing of the shear reinforcement where a proprietary shear link system is assumed in the design but not followed in detailing.
Structural corrosion in a swimming pool building causes concern
A survey showed severe corrosion of previously repaired steelwork columns adjacent to a public swimming pool.
Temporary movement joint in slabs not installed correctly
Dowels in temporary movement joints for a slab were not installed correctly, impacting the structural behaviour.
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.
Execution not matching design assumptions
This report highlights how the connection of steel columns to twin beams acting as a transfer beam was overlooked and created an eccentric loading condition.
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Workmanship in domestic buildings
A reporter has raised concerns after discovering a steel beam on site had its web cut away at the support without approval from the design engineer.
Roof collapse at primary school
Blocked drainage outlets likely lead to the build-up of water on a school roof which collapsed.
Fire protection of mixed hot/cold rolled steel structure
This report describes how a high-rise building had to be remediated after it was found there was insufficient fire protection encasement of structural elements.
Checking reinforcement before concrete pours
A reporter shares their concerns about incorrect rebar positioning on site prior to concrete being poured.