کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
267242 504398 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal capacity design of eccentrically braced steel frameworks using nonlinear response history analysis
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Optimal capacity design of eccentrically braced steel frameworks using nonlinear response history analysis
چکیده انگلیسی

Presented in this paper is an optimal capacity design method for steel building frameworks by adopting a nonlinear response history analysis procedure as the evolution tool for the structures under extreme earthquake loading. Minimum structural weight, minimum seismic input energy, and maximum hysteretic energy of fuse members are identified as design objectives. The design constraints include plastic deformation limit on every frame member and total deformation limit on each inter-story drift. The design optimization method employs a multi-objective genetic algorithm to search for optimal member section sizes from among commercially available steel section shapes. The design method is illustrated in details for a three-story eccentrically-braced steel frame.


► Design optimization of steel building frames using nonlinear time history analysis.
► To minimize cost and input energy and to maximize hysteresis energy of fuses.
► A unified capacity design method for seismic design of steel frameworks.
► A design example of a three-story eccentrically braced frame is demonstrated.
► To compute seismic energy using the structural responses from an existing program.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 48, March 2013, Pages 28–36
نویسندگان
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