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Multiobjective Optimization Design with Pareto Genetic Algorithm
Publisher: American Society of Civil Engineers
Abstract: This paper presents a constrained multiobjective (multicriterion, vector) optimization methodology by integrating a Pareto genetic algorithm (GA) and a fuzzy penalty function method. A Pareto GA generates a Pareto optimal ...
Hybrid Control of Seismic Structures with Optimal Placement of Control Devices
Publisher: American Society of Civil Engineers
Abstract: A theoretical study is carried out for optimal controller placement and effectiveness of a hybrid seismic response control system comprising a viscous fluid damper and a servovalve-controlled hydraulic actuator. A stochastic ...
Optimum Assessment of Irregular Three‐Dimensional Seismic Buildings
Publisher: American Society of Civil Engineers
Abstract: A structural optimization algorithm based on an optimality criteria approach is presented for three‐dimensional, statically and dynamically loaded steel or reinforced concrete structures. The theoretical work is presented ...
Closure to “<i>Dynamic Timoshenko Beam‐Columns on Elastic Media</i>” by Franklin Y. Cheng and Chris P. Pantelides (July, 1988, Vol. 114, No. 7)
Publisher: American Society of Civil Engineers
Dynamic Timoshenko Beam‐Columns on Elastic Media
Publisher: American Society of Civil Engineers
Abstract: Differential equations, stiffness coefficients, and fixed‐end forces are formulated for a Timoshenko beam‐column on an elastic foundation subjected to lateral time‐dependent excitations and static axial loads. The theoretical ...
Static Timoshenko Beam‐Columns on Elastic Media
Publisher: American Society of Civil Engineers
Abstract: Two approaches are used to derive differential equations, stiffness coefficients, and fixed‐end forces for the analysis of structural systems composed of Timoshenko beam‐columns that may be supported by an elastic foundation. ...
Recursive Optimization for Seismic Steel Frames
Publisher: American Society of Civil Engineers
Abstract: The theoretical derivations and numerical procedures used in the computer program ODSEWS‐2D‐II for the analysis and optimum design of two‐dimensional regular and irregular steel frames subjected to static, earthquake, and ...
Postbuckling and Hysteresis Models of Open‐Web Girders
Publisher: American Society of Civil Engineers
Abstract: The paper presents analytical studies of hysteretic behavior of open‐web girders with angle web members. The partial inelasticity of the member cross section is traced using finite segment formulation with stress‐strain ...
Collapse Behavior of Pino Suarez Building During 1985 Mexico City Earthquake
Publisher: American Society of Civil Engineers
Abstract: This paper presents the investigation of the collapse behavior of a 22‐story steel building during the September 19, 1985, Mexico City earthquake by studying hysteretic behavior, ductility factors of individual structural ...