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885 Disproportionate collapse assessment of Large Panel System (LPS) buildings

A reporter has become concerned by the approach being taken by some engineers to assess the risk of disproportionate collapse due to fire in LPS buildings.

866 Portal frame design and fabrication

A reporter is concerned that, in some cases, no structural design is carried out for steel portal frames.

Current matters
under consideration


  • Quality of construction
  • Fire in buildings
  • Supervision and inspection on site
  • Robustness
  • Weather damage to buildings

Reports on these subjects are sought, as well as on any other safety issues.

Confidential Reporting

Confidential reporting was developed as ASRS (Aviation Safety Reporting System) by NASA for the Federal Aviation Authority in the USA. This has been operating for over 30 years and as a result of its success, similar schemes have been developed in a number of other countries. In the UK, this is CHIRP (Confidential Reporting Programme for Aviation and Maritime).

CROSS is the first confidential reporting scheme to deal with structures.

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