20 October 2003

Role of Acceptable Solutions in Evaluating Innovative Designs

Denis Bergeron, National Research Council

Building regulatory systems around the world are going through dramatic change in response to changing stakeholder needs and political environments. The common element resulting from...

20 October 2003

Cost Comparison Between North American Codes and British Collapse Measures

Barry Charnish, Halcrow Yolles

This paper will provide a review of the specific code clauses an estimate of the structural cost premium, based on a normalized design, with costs...

20 October 2003

Economics of Tall Buildings After the World Trade Center Disaster

William R. Code, University of Western Ontario

This paper focuses on how the World Trade Center collapse will undoubtedly have significant effects on the development costs of tall buildings, but the greatest...

20 October 2003

Measuring Smoke and Toxic Gas Pathways in Tall Buildings

C. Genge, Retrotec Energy Innovations

Smoke moves through tall buildings via the unintentional holes that are found in all fire rated walls. Designers assume these holes are small but they...

20 October 2003

Role of Fire Resistance Issues in the Collapse of the Twin Towers

Venkatesh Kodur, National Research Council

This paper covers the twin towers of the World Trade Centre and how it suffered significant damage from the impact of the planes, however they...

20 October 2003

Evacuation of the World Trade Center: What Went Right?

Guylène Proulx, National Research Council Canada; Rita F. Fahy, National Fire Protection Association

The evacuation of the World Trade Center on September 11, 2001 was not the first evacuation of the 100-storey high towers. Partial and full evacuations...