Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Outrigger placement in tall buildings using topology optimization
Highlights A practical tall building simulation model is suggested using hybrid finite element types. A new outrigger/belt-truss allocation problem is defined using topology optimization. The continuation method is used for material penalization parameter in order to obtain “0–1” design of outrigger placement.
Abstract The burgeoning growth of tall buildings around the world requires novel design methodologies to resolve design challenges imposed by the enormous volume of material and energy employed during their construction and operation. To meet this upcoming social demand on tall buildings, practical and efficient design method is proposed for optimal outrigger placement using topology optimization. Outriggers, one of the key structural components in a tall and narrow building, are the horizontal structures which connect the building core (spine) and the exterior surface in order to improve the building’s shear stiffness. In the proposed method, the high-fidelity simulation model of a tall building is constructed with multiple finite element types for the core and the reinforcing truss system. The floor-wise outriggers are parameterized using the Simple Isotropic Material with Penalization (SIMP) and defined as the design variables. The outrigger placement problem is solved using topology optimization. The continuation method is used for material penalization parameter in order to obtain “0–1” design. The versatility of the proposed design methodology is proven using the realistic FEM model of a three-dimensional 201m tall building.
Outrigger placement in tall buildings using topology optimization
Highlights A practical tall building simulation model is suggested using hybrid finite element types. A new outrigger/belt-truss allocation problem is defined using topology optimization. The continuation method is used for material penalization parameter in order to obtain “0–1” design of outrigger placement.
Abstract The burgeoning growth of tall buildings around the world requires novel design methodologies to resolve design challenges imposed by the enormous volume of material and energy employed during their construction and operation. To meet this upcoming social demand on tall buildings, practical and efficient design method is proposed for optimal outrigger placement using topology optimization. Outriggers, one of the key structural components in a tall and narrow building, are the horizontal structures which connect the building core (spine) and the exterior surface in order to improve the building’s shear stiffness. In the proposed method, the high-fidelity simulation model of a tall building is constructed with multiple finite element types for the core and the reinforcing truss system. The floor-wise outriggers are parameterized using the Simple Isotropic Material with Penalization (SIMP) and defined as the design variables. The outrigger placement problem is solved using topology optimization. The continuation method is used for material penalization parameter in order to obtain “0–1” design. The versatility of the proposed design methodology is proven using the realistic FEM model of a three-dimensional 201m tall building.
Outrigger placement in tall buildings using topology optimization
Lee, Soobum (Autor:in) / Tovar, Andrés (Autor:in)
Engineering Structures ; 74 ; 122-129
16.05.2014
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
<italic>A</italic> <inf>0</inf> , base cross-sectional area of truss members , <italic>A<inf>i</inf></italic> , cross-sectional area of truss members defined in <italic>X<inf>i</inf></italic> , <italic>i</italic> , index for design variable , <italic>V</italic> <inf>0</inf> , volume limit , <italic>V<inf>f</inf></italic> , volume fraction , <italic>X<inf>i</inf></italic> , design variable , <italic>Γ</italic> , building exterior sculpture , <italic>Λ</italic> , design domain between core and exterior skin , <italic>Ψ</italic> , objective function , <italic>Ω</italic> , building core domain , Topology optimization , Hybrid structural elements , Tall building , Outriggers
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