Pushover analysis of structures subjected to combined actions of earthquake and wind

Wang, Zijun; Martínez-Vázquez, Pedro; Zhao, Boming

doi:10.1016/j.engstruct.2020.111034

Cited by 10 publications

(2 citation statements)

References 26 publications

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“…For structural optimization under multi‐hazard environment, there is some relevant literature. Wang et al 28,29 proposed a framework to investigate the structural performance under the combined action of earthquake and wind using pushover analysis to determine the structural strength capacity compared to the corresponding demand. Chulahwat and Mahmoud 30 used the linear weighted method to optimize suspended floor slab isolation systems under wind and seismic hazards.…”

Section: Introductionmentioning

confidence: 99%

A multi‐objective structural optimization method for serviceability design of tall buildings

Huang,

Wang,

Lin

et al. 2023

Structural Design Tall Build

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SummaryStructural optimization design aims to identify optimal design variables corresponding to a minimum objective function with constraints on performance requirements. To this end, many optimization frameworks have been proposed to determine optimal structural systems that are subjected to seismic and wind hazards in isolation. However, some modern tall buildings are sensitive to seismic and wind excitation owing to their complex structural systems and geographic regions. Therefore, a proper structural optimization method for such buildings is required to ensure that the expected performance is achieved in a multi‐hazard scenario. This study proposes a multi‐objective serviceability design optimization methodology for buildings in multi‐hazard seismic and wind environments by combining optimality criteria and the nondominated sorting genetic algorithm II (NSGA‐II). Seismic and wind effects can be instantaneously updated due to changes in the structural dynamic properties during the optimal design process. A neural‐network‐based surrogate model with self‐updating is proposed to predict the structural natural frequency so that the overall computation time of the optimization process can be reduced. The proposed method was used to optimize a 50‐story frame‐tube building and was compared against the general genetic algorithm and general NSGA‐II to verify the feasibility and effectiveness.

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Section: Introductionmentioning

confidence: 99%

A multi‐objective structural optimization method for serviceability design of tall buildings

Huang,

Wang,

Lin

et al. 2023

Structural Design Tall Build

View full text Add to dashboard Cite

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“…The primary benefit of pushover analysis is to obtain an over-strength estimation and provide a sense of the system's general ability to sustain inelastic displacement ductility [13]. Nonlinear pushover analysis offers sufficient knowledge regarding the building's durability, deformation capability, the discovery of the yield displacement, and the ultimate displacement, which are all used to compute the building structure's ductility from dividing the maximum displacement by the displacement of the yield [14]. The pushover analysis assesses the structural system's predicted quality by measuring the structural system's strength and deflection.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Ductility of Reinforced Concrete Structures with Shear Walls having Different Thicknesses and Different Positions

Reşatoğlu

Jkhsi

2022

IIUMEJ

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Ductility is one of the main criteria in reinforced concrete (RC) structures. ASCE 7-10 seismic design code recognizes the importance of ductility in earthquake-resistant structures. The structures need to be designed to have sufficient strength and ductility for overall safety against earthquake forces. Both the strength and the ductility are mutually associated to enhance structural seismic safety in this study. Previous studies showed that a shear wall gives different performance based on its position in building structures. This paper presents the position of the shear walls and shear wall thicknesses effects on ductility. A total of 96 two-dimensional (2D) models are analyzed for this work using ETABS software. The non-linear static analysis (pushover) method is used to analyze and design these RC building structures with shear walls. It is concluded that an increase in shear wall thickness causes a decrease in ductility values, and a decrease in ductility value will also occur when the shear wall position changes from edge to middle. ABSTRAK: Kemuluran adalah salah satu kriteria utama dalam struktur konkrit bertulang (RC). Kod reka bentuk ASCE 7-10 seismik dunia menyedari pentingnya kemuluran dalam struktur tahan gempa. Struktur perlu dibina bagi mencapai ketahanan kekuatan dan kemuluran yang mencukupi bagi keselamatan keseluruhan terhadap kekuatan gempa. Kekuatan dan kemuluran dihubungkan bersama bagi meningkatkan keselamatan tahan gempa dalam kajian ini. Kajian sebelumnya menunjukkan bahawa dinding ricih memberikan prestasi yang berbeza berdasarkan kedudukannya dalam struktur bangunan. Kertas ini menunjukkan kedudukan dinding ricih dan ketebalan dinding ricih kesan pada kemuluran. Sebanyak 96 model dua dimensi (2D) dianalisis dalam kajian ini menggunakan perisian ETABS. Kaedah analisis statik bukan linear (pushover) digunakan bagi menganalisis dan merancang struktur bangunan RC ini dengan dinding ricih. Kesimpulannya peningkatan ketebalan dinding ricih menyebabkan penurunan nilai kemuluran, dan penurunan nilai kemuluran juga akan terjadi ketika posisi dinding ricih berubah dari tepi ke tengah.

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Service-Life Damage Assessment of a Reinforced Concrete Structure under Multi-Hazard Seismic and Wind Actions

Bhaskar

Baheti

Matsagar

2022

Trans Indian Natl. Acad. Eng.

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Pushover analysis of structures subjected to combined actions of earthquake and wind

Cited by 10 publications

References 26 publications

A multi‐objective structural optimization method for serviceability design of tall buildings

A multi‐objective structural optimization method for serviceability design of tall buildings

Evaluation of Ductility of Reinforced Concrete Structures with Shear Walls having Different Thicknesses and Different Positions

Service-Life Damage Assessment of a Reinforced Concrete Structure under Multi-Hazard Seismic and Wind Actions

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