[Announce] NHERI SimCenter 10/10 Webinar Announcement

[announce at designsafe-ci.org]

*NHERI SimCenter – Early Career Researcher Forum*


*Tuesday, October 10, 2017, noon – 1pm (PDT)*
*Numerical Simulation of Concentrically Braced Frames using OpenSees*

*SimCenter Series: Early Career Researcher Forum*



*REGISTER* for this webinar at
*https://www.designsafe-ci.org/learning-center/training/simcenter/webinar-171010/
<https://www.designsafe-ci.org/learning-center/training/simcenter/webinar-171010/>*

Connection information will be distributed upon receipt of registration.



*Abstract: *Concentrically braced frames (CBFs) constitute a substantial
proportion of existing steel building inventory in regions with high
seismic risk in the US. Many of these CBFs were built prior to the
codification of capacity-based and ductile design provisions, and CBFs
built prior to about 1990 have been recognized as seismically vulnerable
structures by the engineering community. While modeling approaches for
special CBFs using *OpenSees* have been well established, these are not
necessarily appropriate for existing and retrofitted CBFs, since recent
experimental research has identified several distinct yielding and failure
sequences for these systems. Nonlinear response-history analysis is
required to understand the impacts of these complex behaviors on seismic
performance, but adequate simulation necessitates new modeling approaches.
This presentation discusses state-of-the-art CBF modeling approaches in
*OpenSees*, and how this framework has been adapted at both the conceptual
and software levels to meet emerging research needs. Workflows ranging from
subassemblage test simulation to three- and nine-story building
response-history analyses are presented, including how *MATLAB*, *OpenSees*,
and high-performance computing resources (including TACC) are leveraged to
facilitate research.


*Presenter: *Andrew Sen is a doctoral candidate in the Department of Civil
and Environmental Engineering at the University of Washington. His research
seeks to evaluate the seismic performance of pre-capacity-design
concentrically braced frames and provide practical guidance for their
seismic retrofit.




*About Early Career Researcher Forum:*The Early Career Researcher Forum is
a webinar series that highlights compelling research and facilitates the
exchange of ideas among graduate students, postdocs and early career
faculty, but all are welcome to participate.
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