Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimal Stiffness Distribution of Steel Moment Frames under Extreme Earthquake Loading
The paper presents a design optimization method for steel moment frames under extreme earthquake loading. Seismic demands of the structures are evaluated using a nonlinear pushover analysis procedure. Least structural weight is taken explicitly as one design objective. The other objective, pursuing uniform ductility demands in all stories, is realized indirectly by imposing an equal limit to the plastic interstory drift ratio of each story. Explicit forms of the objective function and constraints in terms of member sizing variables are formulated to enable computer solution for the optimization model. The proposed design formulation seeks a least-weight design with an optimal lateral stiffness distribution for steel moment frames. The concepts are illustrated for a three-story moment frame example.
Optimal Stiffness Distribution of Steel Moment Frames under Extreme Earthquake Loading
The paper presents a design optimization method for steel moment frames under extreme earthquake loading. Seismic demands of the structures are evaluated using a nonlinear pushover analysis procedure. Least structural weight is taken explicitly as one design objective. The other objective, pursuing uniform ductility demands in all stories, is realized indirectly by imposing an equal limit to the plastic interstory drift ratio of each story. Explicit forms of the objective function and constraints in terms of member sizing variables are formulated to enable computer solution for the optimization model. The proposed design formulation seeks a least-weight design with an optimal lateral stiffness distribution for steel moment frames. The concepts are illustrated for a three-story moment frame example.
Optimal Stiffness Distribution of Steel Moment Frames under Extreme Earthquake Loading
Gong, Yanglin (Autor:in)
Advances in Structural Engineering ; 8 ; 573-584
01.12.2005
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Optimal Stiffness Distribution of Steel Moment Frames under Extreme Earthquake Loading
| Online Contents | 2005
Collapse Assessment of Steel Moment Resisting Frames Under Earthquake Shaking
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