The use of polyurethane injection as a geotechnical seismic isolation method in large-scale applications: a numerical study

MPA Gatto, V Lentini, F Castelli, L Montrasio, D Grassi - Geosciences, 2021 - mdpi.com
This paper analyses the effect of polyurethane injections on the seismic surficial response of
cohesionless soils. For this purpose, dynamic finite element numerical analyses were …

Enhancing the seismic performance of moment frames using a dumbbell-shaped rocking shear wall with energy-dissipating devices

A Massumi, M Piri, M Nematnezhad - Practice Periodical on …, 2023 - ascelibrary.org
Studies have shown that repairing damaged structures and rebuilding them after an
earthquake, especially in densely populated cities, can impose severe financial and …

Introducing a base-rocking dual-core braced-frame system equipped with vertical buckling-restrained fuses

MJ Ebrahimi Majumerd… - Bulletin of Earthquake …, 2023 - Springer
A base-rocking dual-core braced-frame (BRDC) system equipped with vertical buckling-
restrained fuses (BRF) was developed to prevent the soft-story failure mechanism. The …

Earthquake-induced loss assessment of hybrid self-centering piston-based braced frame with friction springs and SMA bars

N Rahgozar, MS Alam - Engineering Structures, 2024 - Elsevier
Abstract A novel Self‐Centering Piston-Based Bracing (SC-PBB), integrating Friction
Springs (FSs) and Shape Memory Alloy (SMA) bars, offers a promising solution for curtailing …

Seismic performance of rocking braced frames with double base plate connections

M Ali, SM Zahrai, SR Mirghaderi - Structures, 2024 - Elsevier
This paper presents a rocking system for concentrically braced frames (CBFs) to mitigate the
seismic demands induced by seismic motions. The proposed system incorporates double …

Hysteretic behavior of steel fiber-reinforced high-strength concrete columns with high-strength steel bars

J Zhang, J Liu, X Li, W Cao, Z Chen - Structures, 2021 - Elsevier
In this paper, an innovative column reinforced with HRB 600 MPa reinforcements and
ultrahigh-strength (UHS) steel bars with low bond strength was proposed. To study the cyclic …

Multi-objective optimal design of SC-BRB for structures subjected to different near-fault earthquake pulses

SV Hashemi, M Miri, M Rashki, S Etedali - Structures, 2022 - Elsevier
The purpose of this research is to propose a two-objective optimum design technique of self-
centering buckling restrained brace (SC-BRB) characteristics based on a multi-objective …

Effects of support conditions and arrangement of prestressed rocking columns on the displacement of concrete frames under dynamic loads

N Khodabakhshi, A Khaloo - Bulletin of Earthquake Engineering, 2022 - Springer
In this paper, the effects of rocking and fixed base prestressed columns and conventional
reinforced concrete columns on the response of frames are investigated. Also, the influence …

Cyclic behavior of damage-controllable steel fiber-reinforced high-strength concrete frame-shear wall structures

J Liu, J Zhang, W Guo, X Li, W Cao - Journal of Earthquake …, 2023 - Taylor & Francis
Quasi-static tests of two 2-story structures reinforced with HRB 600 MPa reinforcement and
ultrahigh-strength (UHS) reinforcement were conducted. These two structures showed an …

Optimization of design parameters for controlled rocking steel braced dual-frames

S Ghasemi, MF Nezamabadi, AS Moghadam… - Earthquake Engineering …, 2022 - Springer
A controlled rocking concentrically steel braced frame (CR-CSBF) is introduced as an
alternative to conventional methods to prevent major structural damage during large …