Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings

Deringöl, Ahmet Hilmi; Güneyisi, Esra Mete

doi:10.1007/s13296-021-00530-w

Cited by 12 publications

(11 citation statements)

References 43 publications

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“…In recent years, rubber isolation bearings have undergone new changes and developments. Considerable efforts have been invested in the development of new rubber isolation bearings [10][11][12][13][14][15][16][17][18]. Compared to ordinary natural rubber isolation bearings and lead-core rubber isolation bearings, high-damping rubber isolation bearings (Figure 3) have plenty of advantages over the both, such as a simple structure, stable mechanical performance, strong energy dissipation capacity, large stiffness before yielding, environmental protection, etc., that make it an excellent choice for base-isolated structures [16].…”

Section: High-damping Rubber Isolation Bearingmentioning

confidence: 99%

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Chen

Song²,

Guan³

2022

Polymers

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At present, high-damping rubber materials, widely used in the field of engineering seismic isolation, generally have the problems such as narrow effective damping temperature range, low damping loss factor and strong temperature dependence, which lead to prominent dependence of temperature and load conditions of the isolation performance of high-damping rubber isolation bearings. Research and development of high-performance high-damping rubber materials with broad effective damping temperature range, high damping loss factor and weak temperature dependence are very urgent and necessary to ensure the safety of the seismic isolation of engineering structures. This paper mainly reviews the recent progress in the research and development of high-damping rubber materials using nitrile butadiene rubber (NBR), epoxidized natural rubber (ENR), ethylene propylene diene rubber (EPDM), butyl rubber (IIR), chlorinated butyl rubber (CIIR), and bromine butyl rubber (BIIR). This is followed by a review of vulcanization and filler reinforcement systems for the improvement of damping and mechanical properties of high-damping rubber materials. Finally, it further reviews the constitutive models describing the hyperelasticity and viscoelasticity of rubber materials. In view of this focus, four key issues are highlighted for the development of high-performance high-damping rubber materials used for high-damping rubber isolation bearings.

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Section: High-damping Rubber Isolation Bearingmentioning

confidence: 99%

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Chen

Song²,

Guan³

2022

Polymers

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“…Then for the QZS ∞ , the limit exists and equals to 0, which means where o(l n ) represents the higher order infinitesimal of l n . Thus, the following equation must be hold Substitute (21) into the equation (12), then the equation ( 13) can be obtained, and the necessity of the condition in the proposition is proved.…”

Section: Propositionmentioning

confidence: 99%

“…to decouple resonance of supporting structures from systems, mainly through the methods of introducing high damping, flexible supporting, closed-loop control system, or nonlinear structure. Snyder 20 studied the performance of magnetorheological damper under external excitation; Deringo 21 studied the seismic isolation ability of the rubber with high damping for the buildings. David 22 proposed a supporting structure with near-zero stiffness characteristic to simulate the unconstrained (free-free) boundary conditions for the ground vibration testing of spacecraft.…”

mentioning

confidence: 99%

Road to entire insulation for resonances from a forced mechanical system

Zhu

Cao

Wang³

et al. 2022

Sci Rep

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The effective solution to avoid machinery damage caused by resonance has been perplexing the field of engineering as a core research direction since the resonance phenomenon was discovered by Euler in 1750. Numerous attempts have been performed to reduce the influence of resonance since the earlier of last century, by introducing a nonlinear structure or a closed-loop control system. However, the existed methodologies cannot eliminate resonance completely even extra problems were introduced inevitably, which means the technical choke-point of resonance-free remains unsolved. Here we propose a designable archetype model, which establishes a mapping between the mechanical properties and its structure. A general inverse method for structure construction is proposed based upon the required property for the system with quasi-zero stiffness of any designed finite order and the zero-stiffness properties. It is shown that an ellipse trajectory tracking of the designed model is the sufficient and necessary condition to satisfy the zero-stiffness property. Theoretical analysis shows that no resonant response happens in a zero-stiffness system to the full-band frequency excitation, or equivalently, the system can completely isolate the energy transfer between the load and environment, when the damping ratio approaches zero. Finally, an experimental rig for the prototype structure is built up according to the sufficient and necessary condition of the zero-stiffness system, for which the special dynamic behaviours are verified through experiments of frequency-sweep and random-vibration as well. Experimental results show that the prototype of the initial vibration isolation frequency of zero-stiffness system is much lower than 0.37 Hz, and the vibration attenuation of the proposed model is about 16.86 dB, 45.63 dB, and 112.37 dB at frequencies of 0.37 Hz, 1 Hz, and 10 Hz, respectively. The distinguished geometric structure of the zero-stiffness system leads to a new inspiration for the design of resonance-free in metamaterial unit and the inverse method can even adapt the design for a more targeted applications based on an arbitrary complex dynamic requirement.

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“…Natale et al [23,24] studied a PBEE-based method to quantify the payback time (PBT) of seismic retrofit solutions for existing RC buildings, based on the fact that the high installation costs of foundation isolation limit its widespread use in common designs; Li [25] applied different dampers to an engineering example for performance analysis; Wang [26] used three different support systems for a dynamic time analysis of the Songhua Bridge and concluded that the system equipped with dampers was more favourable for seismic resistance; Li and Zhou et al [27,28] introduced the composition and performance of friction pendulum and how to mitigate the seismic effect of building structures in engineering practice; Nakamura and Okada et al [29] verified the effectiveness of seismic isolation and reaction control methods by shaking table tests and seismic response analysis for three types of rubber bearings and three types of damping devices; Natale et al and Di Sarno et al [23,30] studied how highly damped rubber bearings mitigate the seismic effects of steel buildings in actual earthquakes; Shahbazi and Moaddab [31] illustrated the intrinsic relationship and the acceleration and displacement response spectra of displacement-dependent dissipators in structures, as well as the principles and practical applications of displacementdependent dissipators; Dong et al [32,33] studied the hysteretic force-deformation response of large dampers. Wen et al [34] research found that unsoaked rocks are the strongest. Kong et al [35,36] analysed the different waveform characteristics of the structure at different periods of deformation damage to predict the development trend and pattern of the structure during damage deformation.…”

Section: Introductionmentioning

confidence: 97%

Seismic Response and Economic Study of New Light Steel-Wood-Plastic Structure in Rural Yunnan, China

et al. 2022

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A new type of light steel-wood-plastic residential structure in rural has popular in recent years in rural Yunnan, China. The application of light steel, wood, and new plastic materials in practical engineering is gradually increasing due to its advantages of green ecology and waste utilization, and its response characteristics under earthquakes have attracted great attention. In this paper, seismic-resistant models, seismic-isolated models, and seismic-damped models for multistorey light steel-wood-plastic structures were established using the SAP2000 finite element software based on different seismic response methods. The seismic-isolated model is divided into five schemes, namely, LRB400, LRB500, LRB600, high damped, and friction pendulum-isolated bearings, and the seismic-damped model is divided into three schemes, namely, ordinary bracing, soft-steel bracing, and BRB bracing at the same locations around the 2nd floor of the building. Nonlinear time analysis was carried out for the nine schemes, comparing the period, structural interstorey displacement, base shear, top displacement, top acceleration, and economy of the structure under the action of an 8-degree earthquake. Results show that the period of the seismic-isolated system increased by approximately 130% compared to the seismic-resistant system, and the period of the damped system decreased slightly compared to the seismic system, the interstorey displacement, base shear, and top acceleration of both the seismic-isolated system and the damped system were smaller than those of the seismic-resistant system, and the seismic-isolated system decreased by approximately 40% compared to the damped system, and the seismic-isolated system was more effective than the damped system. From the comparison of postearthquake damage cost and full-cycle cost, the economic performance of the seismic-isolated structure is better than that of the damped and seismic-resistant structures. The conclusions of this paper can provide a scientific reference for promoting the use of new light steel-wood-plastic residential buildings.

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Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings

Cited by 12 publications

References 43 publications

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Road to entire insulation for resonances from a forced mechanical system

Seismic Response and Economic Study of New Light Steel-Wood-Plastic Structure in Rural Yunnan, China

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