Seismic demand amplification of steel frames with SMAs induced by earthquake sequences

K Ke, X Zhou, M Zhu, MCH Yam, H Zhang - Journal of Constructional Steel …, 2023 - Elsevier
This paper investigates the inelastic seismic demands of steel frames equipped with shape
memory alloys (SMAs) subjected to mainshock-aftershock earthquake sequences. Based on …

Damage-free self-centring links for eccentrically braced frames: development and numerical study

A Lettieri, A de la Peña, F Freddi, M Latour - Journal of Constructional Steel …, 2023 - Elsevier
Many recent research studies focused on the development of innovative seismic-resilient
structures, chasing the objectives of minimising both seismic damage and repair time, hence …

Parametric experimental investigation of unbonded post‐tensioned reinforced concrete bridge piers under cyclic loading

Y Shen, F Freddi, Y Li, J Li - Earthquake Engineering & …, 2022 - Wiley Online Library
The present paper investigates the cyclic performance of unbonded post‐tensioned
reinforced concrete (PRC) rocking piers by a parametric experimental campaign. PRC …

Hybrid self-centering connection employing energy dissipation sequences: Experimental study and a structural seismic demand perspective

H Zhang, X Zhou, K Ke, MCH Yam, Y Shi… - Journal of Structural …, 2023 - ascelibrary.org
This study reported an experimental study of hybrid-self-centering connections (HSCCs)
employing energy dissipation sequences. The dual self-centering mechanism of the …

Theoretical and experimental research on the rocking truss system with post-tensioned rocking connection

XL Yang, MM Jia, DG Lu, CY Cui - Journal of Building Engineering, 2024 - Elsevier
The weak story failure often occurs in steel frame structures and the collapse risk of the
frames will increase because of concentrated plastic deformation in the soft story. The work …

Parametric study and finite element analysis of self-centring steel column bases with different structural properties

E Elettore, F Freddi, M Latour, G Rizzano - Journal of Constructional Steel …, 2022 - Elsevier
In recent years there have been significant advancements in the definitions of innovative
seismic-resilient structural systems, chasing the urgent need to reduce repair costs and …

[HTML][HTML] Genetic Algorithm for the optimal placement of Self-Centering Damage-Free joints in steel MRFs

L Pieroni, S Di Benedetto, F Freddi, M Latour - Journal of Constructional …, 2022 - Elsevier
Nowadays' earthquake engineering is coping with the challenging task of providing low-cost
seismic resilient structures. Among others, a viable solution for seismic resilient Steel …

Seismic performance of self-centering concrete-filled square steel tubular column-to-steel beam connection equipped with SMA bolts

L Zhu, Q Ning, W Han, C Zhao - Thin-Walled Structures, 2023 - Elsevier
This study demonstrates the considerable potential of the combined application of
superelastic NiTi shape memory alloy (SMA) bolts and brass friction energy dissipation …

Shaking table tests and numerical analysis of RC coupled shear wall structure with hybrid replaceable coupling beams

N Gong, F Freddi, P Li - Earthquake Engineering & Structural …, 2024 - Wiley Online Library
A variety of innovative structural solutions have been recently introduced to mitigate damage
and expedite the repair of buildings subjected to extreme seismic events, hence contributing …

Optimization-based seismic design of irregular self-centering moment resisting frames with ED bars or fluid viscous dampers

O Idels, O Lavan - Structural and Multidisciplinary Optimization, 2023 - Springer
This paper presents an optimization approach for the preliminary seismic design of self-
centering moment resisting frames (SC-MRFs). Two problems are tackled herein: The …