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).
Newsletter content
Fire evacuation concerns from large panel system tower blocks
A reporter highlights concerns about how alterations to a large panel system (LPS) roof may affect any evacuations from the rooftop by helicopter rescues.
Unstable concrete blocks
A reporter from a consulting firm was called to a site where the blocks in a retaining wall were found to be expanding and falling apart.
Gain in strength of mortar slower than concrete
A masonry wall settled and cracked after four courses of Engineering grade B bricks were substituted (not by the designer) for the original in-situ concrete padstones on cost and handling grounds.
Loading reinforced masonry wall
A 2.5m high retaining wall showed signs of movement not long after backfilling, and it was found that the deflection was due to creep in the bed joints of the immature wall.
Collapse of Large Panel System (LPS) buildings during demolition
In 2009, numerous progressive and unexpected collapses occurred during the demolition of Large Panel System (LPS) tower blocks.
Insufficient design fees
A reporter raises concerns over design fees that were below typical market rates.
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