Seismic response of friction damped and base-isolated frames considering serviceability limit state

Güneyisi, Esra Mete; Deringöl, Ahmet Hilmi

doi:10.1016/j.jcsr.2018.06.018

Cited by 9 publications

(5 citation statements)

References 23 publications

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“…Some more modifications which are cheap and affordable, such as making the structure more resisting towards the earthquake like adobe building with earthquake resisting components, rice or wheat straw buildings, bamboo, and wooden houses etc. [19]. The response spectrum modal analysis of a three-story model in which natural frequencies, mode shapes and nodal forces are calculated numerically by generating stiffness matrices.…”

Section: Structural Modificationsmentioning

confidence: 99%

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Jain,

Rajput,

Kuman

et al. 2023

E3S Web of Conf.

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Hence, it is required to construct such structures which can resist earthquake. The construction of earthquake resistant structures and its effective design is much more required all over the world, particularly, the places where earthquake vulnerability is maximum. This paper is reviewed and tested experimentally for the innovative design of earthquake resistant building which is proposed by engineers and scientists all over the world.in this paper we create multiplex with different link arrangements to minimize the seismic effect and make structure dynamically stable. Other part of the paper concentrates on bolting and busing system with graphene multilayer coting as a vibration isolation and damper.

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Section: Structural Modificationsmentioning

confidence: 99%

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Jain,

Rajput,

Kuman

et al. 2023

E3S Web of Conf.

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“…The results show that this damper effectively reduces the seismic response of the structure in terms of story drifts, residual drifts, absolute floor accelerations, and base shear forces. At present, numerous theoretical analyses and experimental studies have shown that the performance of a friction damper is stable, the energy dissipation capacity is good, and that a friction damper can significantly improve the seismic performance of a structure [10][11][12][13][14][15][16]. However, in a high earthquake intensity area, an ordinary staggered truss steel framing system may face the problem of insufficient ductility and energy dissipation capacity [17].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies on Hysteretic Behavior of Friction Energy Dissipation Composite Chord under Quasi-Static Tests

Zhou

et al. 2023

Materials

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To improve the seismic performance of a staggered truss steel framing system, the basic force unit in the truss system is replaced by a friction energy dissipation truss. The difference between a friction energy dissipation truss and an ordinary truss is that the upper chord is a friction energy dissipation composite chord. In this paper, we investigate the effects of the number of bolts and the friction surface on the energy dissipation capacity of the chord by a quasi-static test on six composite chord specimens at a scale of 1:2. The results show that the hysteresis curves of friction energy dissipation composite chords are ideal rectangles, and the energy dissipation capacity is excellent. The more bolts there are in the specimen, the slower the energy dissipation capacity of the chord decreases. Among the different friction surface specimens, the energy dissipation capacity of the aluminum friction plate specimen decays the fastest, while the energy dissipation capacity of the shot-blasted treated specimen decays substantially after the first cycle. Friction plates can improve the stability of the hysteresis properties. Based on the test results, this paper proposes a calculation method for the ultimate bearing capacity of the composite chord, which provides a basis for the design of a friction energy dissipation truss. In addition, we studied the effects of different bolt clamping forces and slotted bolt hole lengths on the energy dissipation capacity of composite chords by establishing a finite element analysis. It was shown that as the clamping force of the bolt increases, the energy dissipation capacity of the specimen becomes stronger but the stability decreases. The energy dissipation capacity of the chord is close to a linear relationship with the slotted bolt hole lengths; thus, increasing the slotted bolt hole lengths within the allowable range of inter-story drifts can enhance the energy dissipation capacity of the chord. Finally, we propose the design method of the angle steel by analyzing the force of the chord.

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“…Compared to traditional seismic retrofit technique that is depend on increasing of strength and ductility of the structural members by regulating their dimension and upgrading with composite materials, the base isolation technology has been increasingly gained importance and used in plenty of the buildings, especially for critical buildings, namely, hospitals, nuclear plants, stations, terminals whose functionality must continue both during and after the earthquake (Güneyisi and Deringöl, 2018). Unlike from traditional seismic retrofit technique, in base isolation system (BIS), the upper structure is decoupled from the ground and placed a flexible layer between the superstructure and its foundation thereby eliminating the seismic energy that is transmitted from ground to the structure (Skinner et al 2003).The isolator device of BIS has low horizontal stiffness and immense vertical load carrying capacity, is placed underneath the structure so that the base-isolated structure provides greater than that of the original frames (Habieb et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Seismic Response of Base-Isolated Buildings With High Damping Rubber Bearings Having Different Design Characteristics

Deringöl¹,

Güneyisi²

2021

Preprint

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In this study, the use of high damping rubber bearing (HDRB) with various design properties in mitigating the seismic effects for steel buildings was investigated. For this, a generalized demand on the analytical model of HDRB was introduced and eighteen different models of HDRB were examined comparatively. These models were created by considering three significant isolation parameters of HDRB such as isolation period T (2, 2.5, and 3 s), effective damping ratio βeff (0.05, 0.10, 0.15), and post-yield stiffness ratio λ (3 and 6). The benchmark low (3-storey), mid (6-storey), and high-rise (9-storey) steel buildings were equipped with different isolation systems of HDRB and then subjected to a set of earthquake ground motions through nonlinear time history analyses in order to evaluate the actual nonlinear behaviour of the bearings in the base-isolated steel buildings in service. The base-isolated frames were assessed by the variation of the selected structural response parameters such as isolator displacement, relative displacement, inter-storey drift ratio, absolute acceleration, base shear, base moment, hysteretic curve, and dissipated energy. The effectiveness of the steel buildings with HDRB was evaluated. It was shown that the seismic performance of the base-isolated structure was remarkably influenced by the isolation parameters. The higher value of the isolation period and effective damping ratio tended to increase the amount of dissipated energy associated with low post-yield stiffness ratio.

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Seismic response of friction damped and base-isolated frames considering serviceability limit state

Cited by 9 publications

References 23 publications

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Effect of Link location, support and joint with Graphene base dampers for Seismic Stability on Metallic Structure

Experimental and Theoretical Studies on Hysteretic Behavior of Friction Energy Dissipation Composite Chord under Quasi-Static Tests

Seismic Response of Base-Isolated Buildings With High Damping Rubber Bearings Having Different Design Characteristics

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