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Integrated Blast Risk Assessment for Improved Preparedness & Response (CRTI-06-0150TD) Simon Foo, Edward Morofsky & Brian Kyle Professional & Technical.

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Presentation on theme: "Integrated Blast Risk Assessment for Improved Preparedness & Response (CRTI-06-0150TD) Simon Foo, Edward Morofsky & Brian Kyle Professional & Technical."— Presentation transcript:

1 Integrated Blast Risk Assessment for Improved Preparedness & Response (CRTI TD) Simon Foo, Edward Morofsky & Brian Kyle Professional & Technical Service Management Real Property Branch Ghani RazaqpurMurat Saatcioglu McMaster UniversityUniversity of Ottawa Public Security S&T Summer Symposium 2009, Ottawa, June

2 Project Overview Screening tool: preliminary risk assessment for ranking of buildings according to risk levels Evaluation methodology: reliability-based approach for the evaluation of high-risk buildings to determine mitigation needs Retrofit technologies: guidance on the use of blast mitigation technologies Post-blast assessment: on-site evaluation of a building after a bomb blast attack Training of end-users: preparedness and emergency responders

3 Relevance to emergency preparedness & responder needs Screening Evaluation Retrofit Post-Blast Evaluation Emergency preparedness Emergency response

4 Progress: Screening Threat Vulnerability Consequence Risk Standoff distance, building geometry (length, height, number of floors), frame/wall construction, window type & percentage Building area, number of occupancy, affected (damaged) area with respect to vulnerability Threat x Consequence Building function, Security measures, charge weight Refined P-I diagrams for uniformity of the criteria for damage assessment being evaluated against available diagrams & test data

5 Progress: Retrofitting Experimental investigation of as-is and retrofitted structural elements by University of Ottawa with support from CERL Shock tube became operational in December 2008 Testing of first series of reinforced concrete members (slabs and columns) with and without seismic detailing Various retrofitting technologies to be considered in second series of tests

6 Retrofitting: Ottawa Us Shock Tube

7 Retrofitting: Shock Tube Test

8 Progress: Evaluation Developed computer programs which apply SDOF, MDOF concentrated mass & continuum elements to analyze structural elements SDOF & MDOF models developed and being evaluated against results of commercial FE software Objective is to compare the results of these analyses with each other & with experimental data, leading to a set of recommendations on how to properly apply each method of analysis and its expected level of accuracy Conducted field tests on concrete, steel and masonry members in May 2008, November 2008 and May 2009









17 Progress: Post-Blast Assessment Framework for a post-blast evaluation methodology developed, including safety classification levels and the initial development of the criteria used in the classification Work underway on developing specific criteria for each type of classification and for different building types & structural systems Further development of the methodology awaits the evaluation of analysis tool and the test data

18 Acknowledgement Chemical, Biological, Radiological/Nuclear, and Explosives Research Technology Initiative (CRTI TD) Centre for Security Science Project Partners: –NRCan/CERL (Canadian Explosives Research Lab) –RCMP Technical Security Branch –McMaster University –University of Ottawa –ABS Consulting

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