From the Royal Commission's website:
This report by William Holmes of Rutherford & Chekene consulting engineers in San Francisco peer reviews the following Department of Building and Housing technical investigation reports:The 13 page review (here) discusses the approach taken to preparing the reports, raises minor problems arising from presentation, and comments on some of the recommendations made. A couple of selected points:
- Structural Performance of Christchurch CBD Buildings in the 22 February Aftershock: Stage 1 Expert Panel Report dated 30 September 2011 (DBH Expert Panel);
- Investigation into the Collapse of the Pyne Gould Corporation Building on 22nd February 2011 dated 26 September 2011 (Beca);
- Report on the Structural Performance of the Hotel Grand Chancellor in the Earthquake of 22 February 2011 dated 26 September 2011 (Dunning Thornton Consultants Ltd);
- Investigation into the Collapse of the Forsyth Barr Building Stairs on 22nd February 2011 dated 26 September 2011 (Beca)
- For the PG building there is a discussion on page 6 of what might have been the critical structural weaknesses (CSW) that lead to collapse.
- the goal of the program for earthquake prone buildings should be clearly identified before assessment guidelines are revised - will it apply only to the worst of the worst buildings, or to a wider range?