Overview of Structural Robustness Research at NIST
The recommendations from a national workshop formed the basis for a coordinated national plan for problem-focused research on mitigation of disproportionate collapse of buildings. The project proposes to develop metrics to quantify the robustness of various structural systems to assess their disproportionate collapse potential. These metrics will be based on experimentally validated computational models of structural systems incorporating the predominant behaviors and failure modes of components and connections. Such models can also be used by design professionals in design for disproportionate collapse resistance. A key component in the development and evaluation of robustness metrics will be a series of push-down and push-over analyses to assess the reserve capacity of a variety of structures with different systems and materials. The project will develop performance objectives, acceptance criteria, and evaluation methods for both new and existing structures, which will be used to develop guidance documents and pre-standards for design and rehabilitation of structures to mitigate disproportionate collapse.
Selected Publicationssee all publications …