Effect of friction pendulum bearing properties on behaviour of buildings subjected to seismic loads

Deringöl, Ahmet Hilmi; Güneyisi, Esra Mete

doi:10.1016/j.soildyn.2019.105746

Cited by 29 publications

(9 citation statements)

References 24 publications

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“…A series of nonlinear time-history The gravity loading on the floor system is considered as the additional dead loads of 2 kN/m 2 and live loads of 3 kN/m 2 . The yield stress and the post-yield stiffness ratio of the steel material are assumed to be equal to 235 MPa and 0.03, respectively [38,39]. The lumped plasticity approach was followed for the nonlinear behavior of the frames.…”

Section: Details Of Steel Frames Modeling and Analysismentioning

confidence: 99%

Comparison of Novel Seismic Protection Devices to Attenuate the Earthquake Induced Energy

Hansu

Güneyisi

2021

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This study addresses an alternative use of viscous dampers (VDs) associated with buckling restrained braces (BRBs) as innovative seismic protection devices. For this purpose, 4-, 8- and 12-story steel bare frames were designed with 6.5 m equal span length and 4 m story height. Thereafter, they were seismically improved by mounting the VDs and BRBs in three patterns, namely outer bays, inner bays, and all bays over the frame heights. The structures were modeled using SAP 2000 software and evaluated by the nonlinear time history analyses subjected to the six natural ground motions. The seismic responses of the structures were investigated for the lateral displacement, interstory drift, absolute acceleration, maximum base shear, and time history of roof displacement. The results clearly indicated that the VDs and BRBs reduced seismic demands significantly compared to the bare frame. Moreover, the all-bay pattern performed better than the others.

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Section: Details Of Steel Frames Modeling and Analysismentioning

confidence: 99%

Comparison of Novel Seismic Protection Devices to Attenuate the Earthquake Induced Energy

Hansu

Güneyisi

2021

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“…The gravity loading on the floor system is considered as the additional dead loads of 2 kN/m 2 and live loads of 3 kN/m 2 . The yield stress and the post yield stiffness ratio of the steel material are assumed to be equal to 235 MPa and 0.03, respectively [34,35]. The lumped plasticity approach is followed for the nonlinear behavior of the frames.…”

Section: Details Of Steel Frames Modeling and Analysismentioning

confidence: 99%

Steel Frames Exposed to Severe Ground Motions: Use of Viscous Dampers and Buckling Restrained Braces to Dissipate Earthquake Induced Energy

Hansu¹,

Em²

2021

Preprint

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This study addresses an alternative use of viscous dampers (VDs) associated with buckling restrained braces (BRBs) as the innovative seismic protection devices. For this, 4, 8 and 12 storey steel frames were designed with 6.5 m equal span length and 4 m storey height. Thereafter, the VDs and BRBs were placed over the height of each frame considering three different configurations. The structures were modeled using SAP2000 finite element program and evaluated by the nonlinear time history analyses subjected to the six natural accelerograms (1976 Gazlı, 1978 Tabas, 1987 Superstition Hills, 1992 Cape Mendocino, 1994 Northridge and 1999 Chi-Chi). The structural response of the structures with and without VDs and BRBs were studied in terms of variation in the displacement, interstorey drift, absolute acceleration, maximum base shear, time history of roof displacement. The results clearly indicated that the application of VDs and BRBs had remarkable improvement in the earthquake performance of the case study frames by reducing the local/global deformations in the main structural systems and satisfied the serviceability.

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“…In the past few decades, the notations presented in the figures will be further explained in Section 1.2. In the past few decades, in addition to adjusting the design parameters of FPBs for better estimating and enhancing their control performances [7], there have also been many studies on mechanically modifying and upgrading FPBs to offer designers greater flexibility to optimize their performance as much as possible at different design stages. The FPBs, which can individually or simultaneously present variable energy dissipation and different stiffness (or restoring force) capabilities by correspondingly designing different friction coefficients and varying curvature radii, such as the so-called double, triple, and even quintuple FPBs, were analytically and experimentally studied by Fenz and Constantinou [8,9], Kim YS and Yu CB [10], Calvi et al [11], Panchal and Jangid [12], Bao and Becker [13], and Lee and Constantinou [14].…”

Section: Literature Reviewmentioning

confidence: 99%

Control Performances of Friction Pendulum and Sloped Rolling-Type Bearings Designed with Single Parameters

et al. 2020

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Owing to quite different features and hysteretic behavior of friction pendulum bearings (FPBs) and sloped rolling-type bearings (SRBs), their control performances might not be readily compared without some rules. In this study, first, on the premise of retaining the same horizontal acceleration control performance, the effects arising from different sloping angles and damping forces on the horizontal maximum and residual displacement responses of SRBs are numerically examined. For objective comparison of passive control performances of FPBs and SRBs, then, some criteria are considered to design FPBs with the same horizontal acceleration control performance by referring to the designed damping force and the maximum horizontal displacement response of SRBs under a given seismic demand. Based on the considered criteria, the passive control performances of FPBs and SRBs under a large number of far-field and pulse-like near-fault ground motions are quantitatively compared. The numerical comparison results indicate that the FPB models might potentially have better horizontal acceleration and isolation displacement control performances than the SRB models regardless of whether they are subjected to far-field or near-fault ground motions, while the opposite tendency is observed for their self-centering performances, especially when the SRB model designed with a larger sloping angle or a smaller damping force.

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Effect of friction pendulum bearing properties on behaviour of buildings subjected to seismic loads

Cited by 29 publications

References 24 publications

Comparison of Novel Seismic Protection Devices to Attenuate the Earthquake Induced Energy

Comparison of Novel Seismic Protection Devices to Attenuate the Earthquake Induced Energy

Steel Frames Exposed to Severe Ground Motions: Use of Viscous Dampers and Buckling Restrained Braces to Dissipate Earthquake Induced Energy

Control Performances of Friction Pendulum and Sloped Rolling-Type Bearings Designed with Single Parameters

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