Gradient-Based Study on Seismic Performance Reduction of Steel Braced Frames Due To Irregular Brace Over-Strength Distributions
Abstract eng: In this paper a general sensitivity-based gradient methodology developed to investigate the relation between seismic performance reduction and regularity of brace overstrength distributions is used for performance-based design and assessment of braced steel frames. A range of variation of the brace over-strength is defined and the brace over-strength patterns that are the most unfavorable for each response parameter are identified. Then, the relationship between the brace over-strength used in the seismic design and the maximum seismic performance reduction is obtained. Results for a case study considering a realistic buckling-restrained braced frame are presented and discussed showing the practical use of the developed sensitivity-based gradient methodology.
Contributors:
Publisher:
National Technical University of Athens, 2013
Conference Title:
Conference Title:
COMPDYN 2013 - 4th International Thematic Conference
Conference Venue:
Island of Kos (GR)
Conference Dates:
2013-06-12 / 2013-06-14
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-15, last modified 2016-11-15
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