4.5 Article

Impact of strongback on structure with varying damper and stiffness irregularity arrangements

Related references

Note: Only part of the references are listed.
Article Engineering, Civil

Role of dampers on the seismic performance of pin-supported wall-frame structures

Xiaoyue Wang et al.

Summary: Pin-supported (PS) walls have been proven effective in avoiding weak story failure of frame structures by increasing the height-wise continuous stiffness and producing uniform distribution of story drifts. However, there has been little attention given to the floor velocity or acceleration responses of PS wall-frame structures, which are critical to the seismic damage of nonstructural components. This paper presents a numerical evaluation of the floor velocity and acceleration responses of PS wall-frame structures, focusing on the effects of different types of dampers accompanying the PS walls.

EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION (2023)

Article Engineering, Civil

Experimental Study of Earthquake Simulator for 3D Cold-Formed Steel Frame Structure

Fatih Alemdar et al.

Summary: This paper presents experimental and numerical analyses of cold-formed steel frame structures, aiming to improve their strength, rotation capacity, and seismic energy dissipation. The study includes shaking table tests on a three-story frame structure and FE analysis to validate the experimental results. The findings show the relationship between the maximum story drift ratio and earthquake acceleration records.

LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES (2022)

Article Engineering, Civil

Theory of plastic mechanism control: A new approach for the optimization of seismic resistant steel frames

Rosario Montuori et al.

Summary: This paper presents an important improvement in seismic design of structures based on the application of the Theory of Plastic Mechanism Control (TPMC). The new procedure has been confirmed to be effective through pushover and dynamic non-linear analyses.

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS (2022)

Article Engineering, Civil

Seismic performance of steel frame structure adopting parallel spine frames with elastic braces

Xingchen Chen et al.

Summary: This study investigates the seismic performance of a super-elastic bracing system and suggests adding elastic braces to reduce residual drifts.

ENGINEERING STRUCTURES (2022)

Article Construction & Building Technology

Simplified Modal Pushover Analysis to Estimate First- and Higher-Mode Force Demands for Design of Strongback-Braced Frames

Barbara G. Simpson et al.

Summary: Strongback-braced frames use an essentially elastic truss to redistribute seismic demands and mitigate the formation of story mechanisms. Modal pushover analysis can estimate force demands in the first and higher modes, including inelastic response.

JOURNAL OF STRUCTURAL ENGINEERING (2021)

Article Engineering, Civil

Self-centering companion spines with friction spring dampers: Validation test and direct displacement-based design

Shuling Hu et al.

Summary: The proposed self-centering companion spines with friction spring dampers (SCS) aim to enhance post-earthquake resilience in steel building structures. Experimental results demonstrate that SCS can achieve stable and convincing self-centering hysteretic responses under different loading protocols, indicating its potential as a resilient seismic-resistant system.

ENGINEERING STRUCTURES (2021)

Article Construction & Building Technology

Generalized modified modal superposition procedure for seismic design of rocking and pivoting steel spine systems

Amory Martin et al.

Summary: The modified modal superposition (MMS) method efficiently captures forces in rocking braced frames, accurately predicts member forces and global forces, and reliably estimates peak story drifts and floor accelerations. Comparison of different spine configurations shows the effects of energy dissipation properties, global hysteresis behavior, and earthquake frequency content on the nonlinear dynamic response of these systems.

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH (2021)

Article Construction & Building Technology

Hybrid braced frame with buckling-restrained and strong braces to mitigate soft story

Niloufar Mashhadiali et al.

Summary: This paper introduces a hybrid CBF bracing system that can reduce soft-story mechanisms and improve the structural behavior of the CBF system. Evaluation of a series of structural models shows that the hybrid bracing system has higher collapse safety margin than conventional CBFs during severe earthquakes.

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH (2021)

Article Construction & Building Technology

Seismic Design and Performances of Frame Structures Connected to a Strongback System and Equipped with Different Configurations of Supplemental Viscous Dampers

Michele Palermo et al.

Summary: This paper investigates the dynamic behavior of structural systems formed by connecting a moment-resisting frame structure with a vertical rigid truss known as a strongback, equipped with added fluid-viscous dampers to reduce seismic response. The strongback acts as a mast to keep the structure in the elastic range under strong seismic ground motion, while controlling undesired effects by adjusting the lateral drift profile of the structure. The effectiveness of added dampers configurations is evaluated through dynamic time-history analyses.

FRONTIERS IN BUILT ENVIRONMENT (2021)

Article Engineering, Civil

Cyclic response sensitivity of energy dissipating steel plate fuses

Ahmad Siar Mahmood Shah et al.

STRUCTURES (2020)

Article Engineering, Civil

Stiffness configuration of strongbacks to mitigate inter-story drift concentration in buildings

Jui-Liang Lin et al.

ENGINEERING STRUCTURES (2019)

Article Engineering, Civil

Seismic Performance and Evaluation of Controlled Spine Frames Applied in High-rise Buildings

Xingchen Chen et al.

EARTHQUAKE SPECTRA (2018)

Article Construction & Building Technology

Experimental and Numerical Investigation of Strongback Braced Frame System to Mitigate Weak Story Behavior

Barbara G. Simpson et al.

JOURNAL OF STRUCTURAL ENGINEERING (2018)

Article Construction & Building Technology

Experimental and Numerical Investigation of Strongback Braced Frame System to Mitigate Weak Story Behavior

Barbara G. Simpson et al.

JOURNAL OF STRUCTURAL ENGINEERING (2018)

Article Construction & Building Technology

Hybrid Testing of the Stiff Rocking Core Seismic Rehabilitation Technique

Derek Slovenec et al.

JOURNAL OF STRUCTURAL ENGINEERING (2017)

Article Construction & Building Technology

Hybrid Testing of the Stiff Rocking Core Seismic Rehabilitation Technique

Derek Slovenec et al.

JOURNAL OF STRUCTURAL ENGINEERING (2017)

Article Construction & Building Technology

Seismic performance of controlled spine frames with energy-dissipating members

T. Takeuchi et al.

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH (2015)

Article Engineering, Civil

NGA-West2 Database

Timothy D. Ancheta et al.

EARTHQUAKE SPECTRA (2014)

Article Construction & Building Technology

Design Concepts for Controlled Rocking of Self-Centering Steel-Braced Frames

Matthew R. Eatherton et al.

JOURNAL OF STRUCTURAL ENGINEERING (2014)

Article Engineering, Civil

Pin-supported walls for enhancing the seismic performance of building structures

Zhe Qu et al.

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS (2012)

Article Construction & Building Technology

Shaking table test and numerical analysis of RC frames with viscous wall dampers

Xilin Lu et al.

JOURNAL OF STRUCTURAL ENGINEERING (2008)

Article Construction & Building Technology

Shaking table test of a 1:20 scale high-rise building with a transfer plate system

C. S. Li et al.

JOURNAL OF STRUCTURAL ENGINEERING-ASCE (2006)

Article Engineering, Civil

Strengthening of moment-resisting frame structures against near-fault ground motion effects

B Alavi et al.

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS (2004)

Article Construction & Building Technology

Effect of column stiffness on braced frame seismic behavior

GA MacRae et al.

JOURNAL OF STRUCTURAL ENGINEERING-ASCE (2004)