Parametric Study of Vertically Isolated Steel Braced Frames Controlled by Shape Memory Alloys DOI Creative Commons
Sasan Babaei, Fooad Karımı Ghaleh Jough

Journal of Applied Engineering Sciences, Год журнала: 2024, Номер 14(2), С. 194 - 201

Опубликована: Дек. 1, 2024

Abstract Vertical isolation has gained interest in recent years by incorporating the damping mechanism within height and evading concentration of elements base. However, dividing building into separate systems may be less practical regular buildings. This study used a conventional steel-braced lateral load-resisting system inherently made up two soft stiff portions to compare efficiency technique. Shape memory alloys (SMAs) with flag-shaped hysteresis mechanisms are assigned among subsystems elaborate mechanism. Parametric coding OpenSees investigates large set frames altered stiffness subsystem subjected time histories 40 records 2 10 % probability exceedance. Increasing reduces interstory roof drift more than 30%. SMA employment is shown effective reducing interstory, at soft- subsystem. The maximum reduction happens on 1st floor 32% least 8%. There was mild rise subsystem’s responses, however, this increase neglected as performance level governed response. SMA-equipped frame then further assessed incremental dynamic analysis. Fragility curves damage states delineate promising response from system.

Язык: Английский

Effects of strain rate on the superelasticity of polycrystalline NiTi shape memory alloy with microvoids: constitutive modeling and molecular dynamics DOI
Xiang Zhu, Shihao Li, Shan Zhou

и другие.

Acta Mechanica, Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

Язык: Английский

Процитировано

0
A novel inerter-enhanced self-centering damper (ISCD) for improving seismic resilience of self-centering RC building frames DOI
Sihua Kong, Guifeng Zhao, Yuhong Ma

и другие.

Engineering Structures, Год журнала: 2025, Номер 330, С. 119895 - 119895

Опубликована: Фев. 13, 2025

Язык: Английский

Процитировано

0
Seismic performance of a self-centering concrete frame with tuned viscous mass dampers based on mode tuning design DOI
Yijie Cai, Haiwei Gu, Jiayi Shi

и другие.

Structures, Год журнала: 2025, Номер 76, С. 108991 - 108991

Опубликована: Апрель 26, 2025

Язык: Английский

Процитировано

0
Shape Memory Alloys for Self-Centering Seismic Applications: A Review on Recent Advancements DOI Creative Commons
Girolamo Costanza,

Samuel Mercuri,

Ilaria Porroni

и другие.

Machines, Год журнала: 2024, Номер 12(9), С. 628 - 628

Опубликована: Сен. 6, 2024

Shape memory alloys (SMAs) have emerged as promising materials for self-centering seismic applications due to their unique properties of superelasticity and shape effect. This review article examines recent advancements in the use SMAs devices, focusing on mechanical properties, damping characteristics structural engineering. The fundamental principles are discussed, including phase transformations hysteretic behavior, performance under various loading conditions is analyzed. also explores different SMA-based systems, with a particular emphasis innovative friction dampers. Furthermore, influence factors such alloy composition, heat treatment parameters SMA devices investigated. concludes by highlighting potential improving resilience structures identifying future research directions this field.

Язык: Английский

Процитировано

2
Parametric Study of Vertically Isolated Steel Braced Frames Controlled by Shape Memory Alloys DOI Creative Commons
Sasan Babaei, Fooad Karımı Ghaleh Jough

Journal of Applied Engineering Sciences, Год журнала: 2024, Номер 14(2), С. 194 - 201

Опубликована: Дек. 1, 2024

Abstract Vertical isolation has gained interest in recent years by incorporating the damping mechanism within height and evading concentration of elements base. However, dividing building into separate systems may be less practical regular buildings. This study used a conventional steel-braced lateral load-resisting system inherently made up two soft stiff portions to compare efficiency technique. Shape memory alloys (SMAs) with flag-shaped hysteresis mechanisms are assigned among subsystems elaborate mechanism. Parametric coding OpenSees investigates large set frames altered stiffness subsystem subjected time histories 40 records 2 10 % probability exceedance. Increasing reduces interstory roof drift more than 30%. SMA employment is shown effective reducing interstory, at soft- subsystem. The maximum reduction happens on 1st floor 32% least 8%. There was mild rise subsystem’s responses, however, this increase neglected as performance level governed response. SMA-equipped frame then further assessed incremental dynamic analysis. Fragility curves damage states delineate promising response from system.

Язык: Английский

Процитировано

1