TY - CHAP
T1 - Design of Irregular Frames with Fluid Viscous Dampers Using Optimization
AU - Idels, Ohad
AU - Lavan, Oren
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - This work presents a methodology for the optimal design of frame structures with elevation irregularity equipped with fluid viscous dampers. Irregular structures became more prevalent in the past few decades due to architectural and functionality considerations. However, from an engineering point of view, they are more challenging to design. Irregular structures are characterized by a drastic change in strength, stiffness and/or mass. Therefore, significant inter-story drifts and plastic deformation are expected in the relevant stories. One of the common design strategies to control the structural response is to integrate energy dissipation devices. In this paper, an approach for the simultaneous design of the force-resisting system and the energy dissipation devices is presented. A mixed-integer optimization problem aims to minimize the cost is formulated. Nonlinear Response History Analysis (NRHA) is adopted to assess the dynamic response of the frame, accounting for both the nonlinear behavior of the structure and the dampers. The optimization process is carried out using an evolutionary optimization approach, the well-known Genetic Algorithm (GA). A numerical example shows the robustness of the proposed optimization strategy.
AB - This work presents a methodology for the optimal design of frame structures with elevation irregularity equipped with fluid viscous dampers. Irregular structures became more prevalent in the past few decades due to architectural and functionality considerations. However, from an engineering point of view, they are more challenging to design. Irregular structures are characterized by a drastic change in strength, stiffness and/or mass. Therefore, significant inter-story drifts and plastic deformation are expected in the relevant stories. One of the common design strategies to control the structural response is to integrate energy dissipation devices. In this paper, an approach for the simultaneous design of the force-resisting system and the energy dissipation devices is presented. A mixed-integer optimization problem aims to minimize the cost is formulated. Nonlinear Response History Analysis (NRHA) is adopted to assess the dynamic response of the frame, accounting for both the nonlinear behavior of the structure and the dampers. The optimization process is carried out using an evolutionary optimization approach, the well-known Genetic Algorithm (GA). A numerical example shows the robustness of the proposed optimization strategy.
UR - http://www.scopus.com/inward/record.url?scp=85123407811&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-83221-6_11
DO - 10.1007/978-3-030-83221-6_11
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AN - SCOPUS:85123407811
T3 - Geotechnical, Geological and Earthquake Engineering
SP - 127
EP - 136
BT - Geotechnical, Geological and Earthquake Engineering
ER -