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Award Abstract #0619161

NEESR-SG: International Hybrid Simulation of Tomorrow's Braced Frame Systems

NSF Org: CMMI
Div Of Civil, Mechanical, & Manufact Inn
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Initial Amendment Date: September 13, 2006
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Latest Amendment Date: August 14, 2007
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Award Number: 0619161
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Award Instrument: Standard Grant
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Program Manager: Joy Pauschke
CMMI Div Of Civil, Mechanical, & Manufact Inn
ENG Directorate For Engineering
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Start Date: October 1, 2006
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End Date: September 30, 2011 (Estimated)
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Awarded Amount to Date: $1,596,660.00
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Investigator(s): Charles Roeder croeder@u.washington.edu (Principal Investigator)
Dawn Lehman (Co-Principal Investigator)
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Sponsor: University of Washington
4333 Brooklyn Ave NE
Seattle, WA 98195-0001 (206)543-4043
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NSF Program(s): EAPSI,
NEES RESEARCH
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Program Reference Code(s): 036E, 043E, 1057, 1576, 5921, 5924, 5978, 7231, 7316, CVIS
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Program Element Code(s): 7316, 7396

ABSTRACT

Abstract

0619161

Roeder

This award is an outcome of the NSF 06-504 program solicitation "George E. Brown, Jr. Network for Earthquake Engineering Simulation Research (NEESR)" competition. Intellectual Merit: Braced frame systems offer an attractive solution to satisfy multiple design criteria within a performance-based earthquake engineering (PBEE) framework. If detailed properly, their displacement and energy dissipation capacities can meet severe demands resulting from extreme events. However, research results have indicated that current design methods prevent braced frames with traditional and buckling-restrained braces from achieving their potential. The dynamic behavior of three-dimensional steel braced frame building systems is complex and often highly nonlinear. Assessing seismic performance in the context of the true system response and developing practical engineering tools are central objectives of this proposal. The consensus of a recent meeting focused on engineering steel buildings for the next decade was that the development of reliable braced frame systems was a top priority in seismic steel research and required the following: a coordinated, international effort, a central PBEE framework to tying the activities together, and collaboration with industry, professional practice and related organizations. This award provides such coordination. The project team includes researchers from the US, Japan, and Taiwan, as well as affiliated researchers from Canada. The research will utilize the NEES facilities at the University of Minnesota (UM) and the University of California, Berkeley (UCB), the NIED/E-Defense Miki shake table in Japan, and the NCREE Laboratory in Taiwan. The primary objective is to use advanced hybrid simulation research methods and international, cooperative investigation to develop performance-based tools and techniques for advanced seismic engineering of steel braced frame systems. Seven primary research phases are proposed: (1) infrastructure and literature and data analysis, (2) integrated-component and subassemblage testing, (3) development and validation of high-resolution and practical simulation methods, (4) integrated-system evaluation through coordinated, international hybrid testing facilities, (5) development of probabilistic-based engineering tools for PBEE of braced frame systems, (6) confirmation of the performance through earthquake simulator testing, and (7) evaluation and validation of the design and analysis tools. A key element of the research is an international hybrid test of a prototype structure that will include simultaneous testing at the two NEES facilities (UM and UCB) and the NCREE Laboratory in Taiwan, and simulation at the University of Washington. . Broader Impacts: This research has a direct, tangible and immediate impact on the seismic safety and performance of a widely used form of construction that many believe to be unnecessarily vulnerable to earthquakes, and accelerate the adoption of innovative technologies and construction practices. Steel structures constitute the majority of engineered building systems in the United States. This research will make steel buildings more economical, design methods more reliable, and increase the competitiveness of U.S. firms in the global economy. This project brings together professional engineers, researchers in the United States, Taiwan, and Japan, as well as representatives from industry and regulatory bodies in an integrated and synergistic fashion. An Advisory Group will assist in the cooperation and coordination to assure practical and useful engineering results and to provide rapid assimilation of these results by the engineering profession. This research will increase diversity and international collaboration through professional development short-courses oriented towards the training of faculty and practicing engineers, provide internship and research opportunities for Native American undergraduate students through the Pacific Alliance LSAMP program, and develop materials for pre-K through grade 12 students for education and exploration of the seismic response of braced systems.


PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Yoo, J.H.; Roeder, C.W.; and Lehman, D.E.. "Simulated Behavior of Multi-Story X-Braced Frame," Engineering Structures, v.31, 2009, p. 182.

Yoo, J.H., Roeder, C.W., and Lehman, D.E.. "Analytical Performance Simulation of Special Concentrically Braced Frames," ASCE, Journal of Structural Engineering, v.134, 2008, p. 681.

Lehman, D.E., Roeder, C.W., Herman, D., Johnson, S., and Kotulka, B.. "Improved Seismic Performance of Gusset Plate Connections," ASCE, Journal of Structural Engineering, v.134, 2008, p. 890.

Yoo, J.H, Lehman, D.E., and Roeder, C.W.. "Influence of Connection Design Parameters on the Seismic Performance of Braced Frames," Journal of Constructional Steel Research, v.64, 2008, p. 607.

Charles W. Roeder; Eric J. Lumpkin; and Dawn E. Lehman. "Balanced Design Procedure for Special Concentrically Braced Frame Connections," Journal of Constructional Steel Research, v.67, 2011, p. 17.

Charles W. Roeder; Dawn E. Lehman; Kelly Clark; Jacob Powell; Jung-Han Yoo; Keh-Chyuan Tsai; Chih-Han Lin; and Chih-Yu Wei. "Influence of Gusset Plates Connection and Braces on the Seismic Performance of X-Braced Frames," Earthquake Engineering and Structural Dynamics, v.40, 2011, p. 355.

Lin, P-C, Tsai, K-C, Wang, K-J, Yu, Y-J, Wei, C-Y, Wu, A-C, Tsai, C-Y, Lin, C-H, Chen, J-C, Schellenberg, A.H, Mahin, S.A., and Roeder, C.W.. "Seismic design and hybrid tests of a full-scale three-story buckling-restrained braced frame using welded end connections and thin profile," Earthquake Engineering & Structural Dynamics, 2012. 

CONFERENCE PROCEEDINGS PRODUCED AS A RESULT OF THIS RESEARCH

Yoo, JH; Roeder, CW; Lehman, DE. "Finite element simulation of special concentrically braced frame tests," in 5th International Conference on Behaviour of Steel Structures in Seismic Areas., 2006, p. 277-282. 

BOOKS/ONE TIME PROCEEDING

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Brandon A. Kotulka. "Analysis for a Design Guide on Gusset Plates used in Special Concentrically Braced Frames", 10/01/2007-09/30/2008,  2007, "a thesis submitted in partial fulfillment of the Master of Science in Engineering, University of Washington, Seattle, WA.".

Brandon A. Kotulka. "Analysis for a Design Guide on Gusset Plates used in Special Concentrically Braced Frames", 10/01/2008-09/30/2009,  2007, "a thesis submitted in partial fulfillment of the Master of Science in Engineering, University of Washington, Seattle, WA.".

Roeder, C. W.;  and Lehman, D.E.,. "Concentrically Braced Frames", 10/01/2008-09/30/2009, , SCSEA/CASE/SEI"Structures magazine",  2008, "Roeder, C. W., and Lehman, D.E., (2008) "Concentrically Braced Frames," Structure magazine, joint publication of SCSEA/CASE/SEI, February 2008".

Brandon A. Kotulka. "Analysis for a Design Guide on Gusset Plates used in Special Concentrically Braced Frames", 10/01/2009-09/30/2010,  2007, "a thesis submitted in partial fulfillment of the Master of Science in Engineering, University of Washington, Seattle, WA.".

Roeder, C. W.;  and Lehman, D.E.,. "Concentrically Braced Frames", 10/01/2009-09/30/2010, , SCSEA/CASE/SEI"Structures magazine",  2008, "Roeder, C. W., and Lehman, D.E., (2008) "Concentrically Braced Frames," Structure magazine, joint publication of SCSEA/CASE/SEI, February 2008".

Roeder, C.W.;  Lehman, D.E.;  Powell, J.;  and Hsiao, P-C. "Seismic Performance and Design of Gusset Plate Connections", 10/01/2009-09/30/2010, "Proceedings 9th US National and 10th Canadian Conference on Earthquake Engineering",  2010, "Roeder, C.W., Lehman, D.E., Powell, J., and Hsiao, P.C. (2010) ?Seismic Performance and Design of Gusset Plate Connections,? 9th US National and 10th Canadian Conference on Earthqu".

Palmer, K.;  Okazaki, T.;  Roeder, C.;  and Lehman, D.. "Three Dimensional Tests of a Two-Story One-Bay Special Concentrically Braced Frame (SCBF) Specimen Designs and Details", 10/01/2009-09/30/2010,  2010, "Palmer, K., Okazaki, T., Roeder, C., and Lehman, D. (2010) "Three Dimensional Tests of a Two-Story One-Bay Special Concentrically Braced Frame (SCBF) Specimen Designs and Details,"".

Roeder, C.W.;  Lehman, D.E.;  Lumpkin, E.;  and Hsiao, P-C. "Seismic Evaluation and Rehabilitation of Concentrically Braced Frames", 10/01/2009-09/30/2010,  2009, "Roeder, C., Lehman, D., Lumpkin, E., and Hsiao, P-C, (2009) "Seismic Evaluation and Rehabilitation of Concentrically Braced Frames," ATC/SEI Conf. on Improving the Seismic Performa".

Roeder, C.W.;  and Lehman, D.E.. "Performance and Behavior of Gusset Plate Connections", 10/01/2009-09/30/2010,  2009, "Roeder, C.W., and Lehman, D.E. (2009) "Performance and Behavior of Gusset Plate Connections," North American Steel Construction Conference, AISC, Pheonix, Arizona, April 2009.".

Lehman, D.E.;  and Roeder, C.W.. "Improved Seismic Design of Concentrically Braced Frames and Gusset Plate Connections", 10/01/2009-09/30/2010,  2008, "Lehman, D.E., and Roeder, C.W., (2008) "Improved Seismic Design of Concentrically Braced Frames and Gusset Plate Connections," ASCE/SEI, Proceedings of Structures Congress, Vancouv".


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