Avoiding Disproportionate Collapse

Full Session with Abstracts

339923-3 - A Review of Analysis Methods for Falling Debris Resulting from Structural Collapse

Friday, April 20
9:30 AM - 10:30 AM
Location: 202B

Despite advances in design methods and building code development, collapse still occurs in structures considered to be “safe” and code-compliant. These occurrences have led the Structural Engineering community to seek “robust design” solutions to mitigate disproportionate collapse from an initial local failure event. While compounding uncertainties from life-cycle demands and material behavior negate the ability to eliminate the possibility of structural failure, an acceptance of structural damage allows one to mitigate such an event from propagating. The acceptance of structural damage requires a means to limit loss to an acceptable level. Prediction of structural elements’ performance under collapse debris impact is a critical step in estimating the extent of expected loss due to local failure. The uncertainties associated with structural collapse debris demand that analysis methods be flexible and not cumbersome. It is beneficial to employ methods that can be expeditiously used, while accounting for complexities associated with highly nonlinear and dynamic material response. An overview of such analysis methods is provided which can be used to evaluate the response of structural elements subject to impact from falling debris. The benefits, drawbacks and limitations of each method are discussed and examples are provided to demonstrate how each can be implemented in a design setting.

Shalva Marjanishvili

Sr. Managing Engineer
Hinman Consulting Engineers, Inc

Shalva Marjanishvili leads Hinman’s Advanced Structural Analysis practice, and is an expert in the dynamic non-linear response of structures to the effects of seismic, impact and explosive loadings. Marjanishvili uses a broad range of computational methods to develop computer models tailored for specific projects as well as modeling buildings using off-the-shelf programs such as SAP2000 Nonlinear. He uses these analytical methods to evaluate the detailed design requirements for both new and existing buildings and for progressive collapse analysis.

Marjanishvili has published 18 technical papers including “Progressive Analysis Procedure for Progressive Collapse”, in the ASCE Journal of Performance of Constructed Facilities.

Shalva Marjanishvili received his BS and PhD in Structural Engineering from the Georgian Technical University, and an MS in Structural Engineering from Stanford University. He is a registered Structural Engineer in California.

Presentation(s):

Send Email for Shalva Marjanishvili

Michael Bychkowski

Engineer
Hinman Consulting Engineers

Presentation(s):

Send Email for Michael Bychkowski

Kyle Haas

Senior Engineer
Hinman Consulting Engineers

Presentation(s):

Send Email for Kyle Haas


Assets

339923-3 - A Review of Analysis Methods for Falling Debris Resulting from Structural Collapse



Attendees who have favorited this

Please enter your access key

The asset you are trying to access is locked. Please enter your access key to unlock.

Send Email for A Review of Analysis Methods for Falling Debris Resulting from Structural Collapse