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, Journal Year: 2024, Volume and Issue: 14(2), P. 194 - 201

Published: Dec. 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.

Language: Английский

Research on friction-type bearings for high-speed railway bridges based on the concept of quasi-isolation DOI
Biao Wei, Xu Wang, Shanshan Cao

et al.

Engineering Structures, Journal Year: 2025, Volume and Issue: 328, P. 119674 - 119674

Published: Jan. 20, 2025

Language: Английский

Citations

4
Self-recovery and mechanical behavior of SMAF-ECC under monotonic and cyclic tensile loading with constitutive model DOI
Muhammad Umar, Hui Qian, Muhammad Faizan Ali

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 460, P. 139840 - 139840

Published: Jan. 1, 2025

Language: Английский

Citations

1
A data-driven approach to the seismic repair cost ratio evaluation for the SMA-cable isolated bridge: Mathematical and machine learning models DOI
Jinda Wang, Li Zhu

Structures, Journal Year: 2025, Volume and Issue: 73, P. 108453 - 108453

Published: Feb. 18, 2025

Language: Английский

Citations

0
Experimental and numerical studies on indoor substation prefabricated steel frames with a partial isolation system DOI
Shaozhen Chen, Xiaonong Guo, Yunbyeong Chae

et al.

Structures, Journal Year: 2025, Volume and Issue: 75, P. 108843 - 108843

Published: April 6, 2025

Language: Английский

Citations

0
Experimental and numerical studies on the seismic behavior of spherical reticulated shells with sliding isolation bearings DOI
Peng Zhuang,

Xiaoyu Hu,

Tao Yang

et al.

Structures, Journal Year: 2024, Volume and Issue: 70, P. 107645 - 107645

Published: Nov. 1, 2024

Language: Английский

Citations

1
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, Journal Year: 2024, Volume and Issue: 14(2), P. 194 - 201

Published: Dec. 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.

Language: Английский

Citations

1