Effects of ambient temperature on cyclic response and functional fatigue of shape memory alloy cables

F Shi, OE Ozbulut, Z Li, Z Wu, F Ren, Y Zhou - Journal of Building …, 2022 - Elsevier
In this paper, the effects of ambient temperature on the tensile response and superelastic
fatigue behavior of the shape memory alloy (SMA) cable are investigated. The tested SMA …

Performance-based seismic retrofit of RC structures using concentric braced frames equipped with friction dampers and disc springs

M Noureldin, SA Memon, M Gharagoz, J Kim - Engineering Structures, 2021 - Elsevier
In this study, concentric braced frame installed with a friction damper-disc-springs is
proposed to enhance the seismic performance of RC framed structures. The structural …

A novel brace-damper system for seismic response suppression of high-rise steel frame structures

X Liu, Y Ding, H Zhang, H Zhao, A Li - Journal of Building Engineering, 2023 - Elsevier
Chevron-brace-damper systems (CBDS) have been widely used in frame structures. To
improve the performance of CBDS, a hybrid of the chevron and scissor-jack brace-damper …

[PDF][PDF] Seismic retrofit of steel structures with re-centering friction devices using genetic algorithm and artificial neural network

M Noureldin, MM Gharagoz, J Kim - Steel and Composite Structures, 2023 - swb.skku.edu
In this study, a new recentering friction device (RFD) to retrofit steel moment frame structures
is introduced. The device provides both self-centering and energy dissipation capabilities for …

[PDF][PDF] Pilot study for investigating the inelastic response of a new axial smart damper combined with friction devices

NM Mirzai, JW Hu - Steel Compos. Struct, 2019 - researchgate.net
This study proposes a new concept of an axial damper using the combination of shape
memory alloy (SMA), friction devices, and polyurethane springs. Although there are many …

Analytical investigation of the behavior of a new smart recentering shear damper under cyclic loading

NM Mirzai, R Attarnejad, JW Hu - Journal of Intelligent …, 2020 - journals.sagepub.com
Shear recentering polyurethane friction damper is a type of passive control device, including
the shape memory alloy plates, polyurethane springs, and friction devices. This damper can …

Development and characterization of self-centering friction dampers with confined shape memory alloy bars

O Avsar, S Cao, OE Ozbulut - Journal of Building Engineering, 2024 - Elsevier
This study proposes a new self-centering, shape memory alloy bar-based device to address
the tension-compression asymmetry and limited energy dissipation capacity of similar SMA …

Investigation of the seismic behaviours of three-dimensional high-rise steel frame structures equipped with oil dampers with variable stiffness

H Zhang, X Liu - Journal of Constructional Steel Research, 2021 - Elsevier
The velocity-dependent oil damper is widely used in engineering. However, researchers
and engineers found that oil dampers were damaged beyond maximum stroke during …

Seismic collapse behavior of steel structures with a smart axial polyurethane friction damper

NM Mirzai, SH Jeong, JW Hu - Journal of Building Engineering, 2022 - Elsevier
Shape memory alloys (SMA) are utilized in various engineering fields, owing to their unique
properties. In this study, the collapse behavior of steel structures designed with a self …

Seismic performance evaluation of SSMF with simple beam–column connections under the base level

A Shabani, S Erfani - International Journal of Steel Structures, 2020 - Springer
Simple beam–column connections are simpler and cheaper in construction than rigid beam–
column connections, moreover, beams under the base level are only carrying gravity loads …