Relevant bibliographies by topics / Friction Pendulum Bearing

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Friction Pendulum Bearing'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Friction Pendulum Bearing"

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Xu, Yanqing, Tong Guo, and Ping Yan. "Design optimization of triple friction pendulums for base-isolated high-rise buildings." Advances in Structural Engineering 22, no. 13 (2019): 2727–40. http://dx.doi.org/10.1177/1369433219849840.

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The triple friction pendulum bearing, as a novel seismic isolator, has received much attention due to its notable advantages such as variable stiffness and damping; however, existing investigations and applications are mainly for low-rise or medium-rise buildings. In order to determine optimal design parameters of triple friction pendulum bearings for high-rise buildings, equations of motion for an isolated high-rise building are derived, and an evaluation function is developed to indicate the isolation effect with different pendulum parameters. In the optimization analysis, seven ground motions are scaled to three levels (corresponding to the service level, the design basis, and the maximum considered earthquakes, respectively) and the genetic algorithm is applied to determine the optimal pendulum parameters. The optimization results are compared with those obtained by the single-degree-of-freedom model, where significant difference is observed, showing the necessity of the presented study. Using the optimal parameters of triple friction pendulum bearings, seismic responses of the isolated building are analyzed and compared with those of the building isolated using the single friction pendulum bearings and the base-fixed building, where it is observed that the triple friction pendulum bearing is more effective and reliable in reducing base shear, floor acceleration, and story drifts.
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Wang, Shuai, Liu Han Wen Heisha, Fang Yu, and Guo Xiang Wang. "Seismic Response Analyses of Isolated Bridges with Different Isolation Bearings." Advanced Materials Research 446-449 (January 2012): 1132–37. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1132.

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In order to research the different types of isolation bearings impact on bridge performance, parameters of lead rubber bearing, super high damping rubber bearing and friction pendulum bearing are designed for the three-span continuous bridge. With the method of nonlinear time-history analysis, dynamic characteristic of this isolated bridge is studied by using sap2000. Analysis results show that the isolated bridge with three types isolation bearings has a good seismic isolation effect under rare earthquake. The difference of shear force between friction pendulum and other two types is about 4% below.
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Han, Qiang, Jianian Wen, Zilan Zhong, and Xiuli Du. "Numerical Simulation of Frictional Heating Effects of Sliding Friction Bearings for Isolated Bridges." International Journal of Structural Stability and Dynamics 18, no. 08 (2018): 1840008. http://dx.doi.org/10.1142/s0219455418400084.

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Sliding friction bearings are effective passive devices to mitigate the seismic responses of structures. Extensive researches have been conducted on sliding bearings. However, most previous studies were based on the assumption that the effects of frictional heating are negligible. A three-dimensional thermal-mechanical-coupled finite element (FE) model of the friction pendulum system (FPS) was developed in this study. Good agreements between the numerical results and the data measured in the previous tests, in terms of the force–displacement curves and temperature time-histories, indicate that the proposed FE model can predict the response of the FPS. Based on the developed FE model, the surface temperature distribution, the effective stiffness and the energy dissipation of the double concave friction pendulum and multiple friction pendulum bearings were investigated and compared. In addition, the thermal states of the sliding bearings in the bridge during earthquake were evaluated. The numerical results indicate that the temperature rise in the sliding bearings leads to the degradation of the effective stiffness and less energy dissipation. The relative displacements of the bearings increase considering the frictional heating effects in the bearings. If the frictional heating of the bearings is ignored, the peak bearing displacements will be underestimated.
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Nhan, Dao Dinh, and Chung Bac Ai. "A constant friction coefficient model for concave friction bearings." Journal of Science and Technology in Civil Engineering (STCE) - NUCE 14, no. 1 (2020): 112–26. http://dx.doi.org/10.31814/stce.nuce2020-14(1)-10.

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This paper develops a constant friction coefficient model that best represents a velocity-dependent friction model for predicting structural response of buildings isolated with concave friction bearings. To achieve this goal, the effect of friction model on structural response of three hypothetical isolated buildings with different number of stories subjected to different earthquake scenarios was numerically investigated. The structural numerical models of the isolated buildings were developed in OpenSees with superstructure is represented by a shear frame model and isolation system using single friction pendulum bearings is modeled by a 3-D friction pendulum bearing element which accepts different friction models. The numerical models were subjected to 30 pairs of ground motions, representing service earthquake level, design basic earthquake level and maximum considered earthquake level at a strong seismic activity area in the world. The investigation reveals that friction coefficient models significantly affect the structural response and there is no constant friction coefficient model that simultaneously best predicts isolation system response and superstructure response. The constant friction coefficient that best predicts isolation system response produces a large error on prediction of superstructure response and vice versa. Based on the numerical results, a constant friction coefficient model for different criteria was developed.
 Keywords:
 friction coefficient model; friction bearing; isolation system; earthquake response; time-history analysis.
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Wu, Peisong, and Jinping Ou. "Performance Analysis and Comparison of Two Base Isolation Systems with Super-Large Displacement Friction Pendulum Bearings." Applied Sciences 10, no. 22 (2020): 8235. http://dx.doi.org/10.3390/app10228235.

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Isolation technology has been successfully applied in seismic migration. With increasing of seismic demand, seismic performance of isolation structures subjected to very-rare earthquakes need further improvement. However, the isolation layer generally lacks sufficient deformation ability under very-rare earthquakes due to the deformation limit of classical isolation bearing. In order to circumvent the difficulty, this paper develops two new isolation bearings, namely super-large displacement rotation friction pendulum bearing (SLDRFPB) and super-large displacement translation friction pendulum bearing (SLDTFPB). By setting spherical shells with large span and large radius, large horizontal displacement and small horizontal stiffness can be achieved. Safety of the isolation layer and the isolation effect of the superstructure can be greatly improved. SLDTFPB differs from SLDRFPB in the motion state of the superstructure and space utilization of the isolation layer, thus SLDRFPB and SLDTFPB are suitable for structures with different requirements. Due to rotation of the superstructure with SLDRFPB or sliding frames in SLDTFPB, the traditional design method of friction pendulum bearing is no longer suitable. We present a new procedure to accurately and conveniently evaluate seismic performance of two developed bearings. Numerical simulation shows that the seismic response of both the superstructure and isolation layer is small. Developed SLDRFPB and SLDTFPB have sufficient emergency capacity and isolation resilience when subjected to very-rare earthquakes.
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Kim, Woo Bum, Kangmin Lee, and Gil Hee Kim. "Application of friction pendulum system to the main control room of a nuclear power plant." Canadian Journal of Civil Engineering 36, no. 1 (2009): 63–72. http://dx.doi.org/10.1139/l08-111.

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An experimental and analytical study was performed to determine if the friction pendulum system (FPS) could be applied to the main control room (MCR) of a nuclear power plant as a seismic isolation device. A friction pendulum bearing was fabricated, and the dynamic performance of that bearing was evaluated. A partial model of the MCR with FPS was tested on a shaking table. The model consisted of a cabinet, an access floor, and four friction pendulum bearings. An artificial time history based on the MCR floor response spectrum was used as an earthquake input signal for the test. Analytical and experimental results were compared to verifiy their correlation and to enable the experimental study to cover a range of parametersnot previously studied in other similar experiments. Through these comparisons, it was affirmed that the proposed FPS seismic isolation system can be applied, with high reliability, to the MCR of a nuclear power plant.
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Fenz, Daniel M., and Michael C. Constantinou. "Behaviour of the double concave Friction Pendulum bearing." Earthquake Engineering & Structural Dynamics 35, no. 11 (2006): 1403–24. http://dx.doi.org/10.1002/eqe.589.

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Hoang, Phuong Hoa, Hoang Nam Phan, and Van Nam Nguyen. "On the Influence of the Vertical Earthquake Component on Structural Responses of High-Rise Buildings Isolated with Double Friction Pendulum Bearings." Applied Sciences 11, no. 9 (2021): 3809. http://dx.doi.org/10.3390/app11093809.

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The double friction pendulum (DFP) bearing is adapted from the well-known single friction pendulum (SFP) bearing. This type of bearings has been widely used for structural vibration controls. The main advantage of the DFP is its capacity to accommodate larger displacements as compared with the SFP one. This paper aims to assess the effect of the vertical earthquake component on the seismic behaviour of a base-isolated high-rise building. In this respect, the mathematical model of the building subjected to earthquake excitations with an implementation of a DFP bearing system is established. The model presented herein considers earthquake excitations in horizontal (X and Y) and vertical (Z) directions. A series model of two friction elements is presented for the bearing, where the friction load of the bearing surface is governed by a modified Bouc-Wen model, which is dependent on the sliding velocity and the contact pressure. The numerical results of an example of a base-isolated 9-story steel building subjected to near-source and far-field earthquakes show the high effectiveness of the bearing system in reduction of the seismic response of the building, especially in the near-source region, as well as exhibit considerable effectiveness of the vertical earthquake component on the bearing and structural behaviour.
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Wu, Xiaohan, Jun Wang, and Jiangyong Zhou. "Seismic Performance Analysis of a Connected Multitower Structure with FPS and Viscous Damper." Shock and Vibration 2018 (October 8, 2018): 1–19. http://dx.doi.org/10.1155/2018/1865761.

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A high four-tower structure is interconnected with a long sky corridor bridge on the top floor. To reduce the earthquake responses and member forces of the towers and sky corridor bridge, a passive control strategy with a friction pendulum tuned mass damper (FPTMD) was adopted. The sky corridor bridge was as the mass of FPTMD. The connection between the towers and the sky corridor bridge was designed as flexible links, where friction pendulum bearings (FPBs) and viscous dampers were installed. Elastoplastic time-history analysis was conducted by using Perform-3D model to look into its seismic behavior under intensive seismic excitation. The optimal design of the FPTMD with varying friction coefficients and radius of friction pendulum bearing (FPB) under seismic excitations was carried out, and the seismic behavior of the structure was also investigated at the same time.Results show that, for this four-tower connected structure, the friction pendulum tuned mass damper (FPTMD) has very well effect on seismic reduction. The structure can meet the seismic resistance design requirements.
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Fenz, Daniel M., and Michael C. Constantinou. "Modeling Triple Friction Pendulum Bearings for Response-History Analysis." Earthquake Spectra 24, no. 4 (2008): 1011–28. http://dx.doi.org/10.1193/1.2982531.

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There are currently no applicable hysteresis rules or nonlinear elements available in structural analysis software that can be used to exactly model triple Friction Pendulum bearings for response-history analysis. Series models composed of existing nonlinear elements are proposed since they can be immediately implemented in currently available analysis software. However, the behavior of the triple Friction Pendulum bearing is not exactly that of a series arrangement of single concave Friction Pendulum bearings—though it is similar. This paper describes how to modify the input parameters of the series model in order to precisely retrace the true force-displacement behavior exhibited by this device. Recommendations are made for modeling in SAP2000 and are illustrated through analysis of a simple seismically isolated structure. The results are confirmed by (a) verifying the force-displacement behavior through comparison with experimental data and (b) verifying the analysis through comparison to the results obtained by direct numerical integration of the equations of motion.
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Dissertations / Theses on the topic "Friction Pendulum Bearing"

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Han, Mengyu. "Application of Base Isolation Systems to Reinforced Concrete Frame Buildings." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35722.

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Seismic isolation systems are widely used to protect reinforced concrete (RC) structures against the effects of strong ground motions. After a magnitude 6.6 earthquake, the outpatient building of Lushan People’s hospital in China remained in good condition due to the seismic isolation technology, while the non-isolated older outpatient building nearby experienced major damage. The building provides a good opportunity to study and assess the contribution of isolation systems to seismic performance of RC structures. In the current research project, the isolated outpatient building was modelled and analyzed using computer software SAP2000. The post-yield behaviour of the structure was modelled by assigning multi-linear plastic links to frame objects. The rubber isolators were represented by rubber isolator link elements, assigned as a single joint element between the ground and the superstructure. The isolated structure was subjected to four earthquake records with increasing intensity. The performances of the isolated structure were compared with those of the fixed-base structures in terms of lateral inter-storey drifts, peak absolute floor accelerations, and residual drifts. The laminated rubber bearings, the high damping isolation devices, composed of rubber bearings and viscous dampers, and the hybrid isolation system of rubber bearings and friction pendulum bearings were analysed. The effectiveness of the three base isolation systems considered in enhancing structural performance was investigated. The results show the level of improvement attained in seismic response by each system. They also illustrate that the rubber bearings coupled with friction pendulum bearings produce the best drift control without causing excessive horizontal displacements at the base level and without adversely affecting floor accelerations.
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Eroz, Murat. "Advanced models for sliding seismic isolation and applications for typical multi-span highway bridges." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19709.

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Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: DesRoches, Reginald; Committee Member: Goodno, Barry; Committee Member: Jacobs, Laurence; Committee Member: Streator, Jeffrey; Committee Member: White, Donald.
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Jen, Wan-chun, and 任萬鈞. "The study of Friction Pendulum Bearing in Bridge Isolation." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/70000254745129182770.

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碩士<br>國立中央大學<br>土木工程學系<br>86<br>The feasibility of using friction pendulum bearings(FPS) combined with the enhanced energy dissipation device system which consists of linear fluid dampers and relatively rigid linking numbers with leverage for seismic isolation of bridges is proposed in the present studies. Accordingly, an algorithm referred to as the〝multi-support shear balance method〞is used for the nonlinear dynamic analysis of bridges isolated with multiple sliding bearing. The dynamic responses of bridges with / without this systems, subject to strong ground motions, are computed numerically. The EL Centro earthquake, Kobe earthquake, Mexico earthquake and simulated Taipei Basin earthquake are used as excitations. It is found that not only the maximum relative displacement (of superstructure) but also the maximum base shear (of piers) can be reduced significantly when these devices are installed on the bridge.
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Marin, Marin Claudia C. "Experimental and analytical study of the XY-friction pendulum (XY-FP) bearing for bridge applications." 2007. http://proquest.umi.com/pqdweb?did=1240710231&sid=9&Fmt=2&clientId=39334&RQT=309&VName=PQD.

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Thesis (Ph.D.)--State University of New York at Buffalo, 2007.<br>Title from PDF title page (viewed on July 05, 2007) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Whittaker, Andrew S. Includes bibliographical references.
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Husfeld, Rachel L. "Base Isolation of a Chilean Masonry House: A Comparative Study." 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2008-05-2.

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The objective of this study is to reduce the interstory drifts, floor accelerations, and shear forces experienced by masonry houses subject to seismic excitation. Ambient vibration testing was performed on a case study structure in Maip�, Chile, to identify characteristics of the system. Upon creating a multiple degree-of-freedom (MDOF) model of the structure, the effect of implementing several base isolation techniques is assessed. The isolation techniques analyzed include the use of friction pendulum systems (FPS), high-damping rubber bearings (HDRB), two hybrid systems involving HDRB and shape memory alloys (SMA), and precast-prestressed pile (PPP) isolators. The dynamic behavior of each device is numerically modeled using analytical formulations and experimental data through the means of fuzzy inference systems (FIS) and S-functions. A multiobjective genetic algorithm is utilized to optimize the parameters of the FPS and the PPP isolation systems, while a trial-and-error method is employed to optimize characteristic parameters of the other devices. Two cases are studied: one case involves using eight devices in each isolation system and optimizing the parameters of each device, resulting in different isolated periods for each system, while the other case involves using the number of devices and device parameters that result in a 1.0 sec fundamental period of vibration for each baseisolated structure. For both cases, the optimized devices are simulated in the numerical model of the case study structure, which is subjected to a suite of earthquake records. Numerical results for the devices studied indicate significant reductions in responses of the base-isolated structures in comparison with their counterparts in the fixed-base structure. Metrics monitored include base shear, structural shear, interstory drift, and floor acceleration. In particular, the PPP isolation system in the first case reduces the peak base shear, RMS floor acceleration, peak structural shear, peak interstory drift, and peak floor acceleration by at least 88, 87, 95, 95, and 94%, respectively, for all of the Chilean earthquakes considered. The PPP isolation system in the second case (yielding a 1.0 sec period) and the FPS isolation systems in both cases also significantly reduce the response of the base-isolated structure from that of the fixed-base structure.
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Lai, Yi-Lin, and 賴怡琳. "Experimental and Analytical Study on Multiaxial Hysteresis Behavior of Friction Pendulum Bearings." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/p9mx4g.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>107<br>Friction pendulum bearings (FPB) are among others the most commonly used friction-type seismic isolation bearing. Though there have been a great amount of researches conducted correspondingly, the focus has been mostly limited to unilateral hysteresis behavior. It is there the attempt of this study to conduct bilateral non-proportional loading tests and to investigate the hysteresis behavior of the bearings. Mosqueda model is used to examine its appropriateness of analytical prediction for the bearing hysteresis, in which the variation of the friction force under bilateral interaction is considered. Based on the correlation between the experimental and analytical results, it is concluded that Mosqueda model deserve the capability to well predict the bearing hysteresis under bilateral non-proportional loadings. Besides, the variation of the friction force due to the wear of the friction interface is the most difficult part in predicting the friction force. Therefore, in the seismic isolation design using FPB, the variation of friction force should be carefully considered with an upper bound and lower bound analysis.
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Teng, Min-Cheng, and 鄧敏政. "Experimental study of seismic isolation of storage tanks using friction pendulum bearings." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/78162705639989980794.

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博士<br>國立交通大學<br>土木工程系<br>90<br>Storage tanks are vulnerable to earthquakes, as demonstrated recently in Chi-Chi earthquake (1999) of Taiwan, and numerous other major earthquakes worldwide. Development of cost-effective earthquake-resistant design and retrofit techniques for industrial tanks is imperative in Taiwan, as the seismic design standard has been significantly enhanced in the post-Chi-Chi revision. In this study, a series of shaking table tests has been conducted to assess the feasibility of seismic base isolation for liquid-filled storage tanks experimentally. The friction pendulum bearings (FPS) are considered rather than the elastomeric bearings as the dynamic characteristics of an FPS-isolated tank remain unchanged regardless of the storage level. Experimental results show evident reductions in dynamic pressure on the shell wall of the tank consistently while isolated. Effectiveness of FPS for seismic isolation of storage tanks is confirmed. Moreover, numerical simulations carried out using a hybrid structural-hydrodynamic model previously devised agree well with the test results, indicating adequacy of the analytical model
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Yang, Ya-Heng, and 楊亞衡. "Design of Frictional Pendulum (FP) Bearing Systems Subjected to Pulse-Like Ground Motions." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/f777p5.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>107<br>Pulse-like ground motions are characterized by containing dominant pulses in ground-motion time series. Such ground motions have a higher potential to produce severe damages and large structural demands for long-period structural systems. Therefore, it is vital to account for this pulse-like effect in current seismic codes to ensure the safety of the systems. This thesis provides an evaluation for the design and seismic assessment of friction-pendulum (FP) bearing systems when subjected to pulse-like ground motions. The equivalent lateral force procedure for the design of FP-bearing systems was evaluated. The predictive capacity of intensity measures (IM), which is one of the key parameters in the Pacific Earthquake Engineering Research (PEER) seismic risk assessment methodology, to structural responses under the influence of pulse-like ground motions was also investigated in the thesis. A pulse-like ground motion database was compiled and the results of nonlinear dynamic analysis for FP-bearing systems was presented and used as a benchmark to evaluate the efficacy of the equivalent lateral force procedure as well as the predictive capacity of investigated IMs. The efficacy of the equivalent lateral force procedure for the cases subjected to pulse-like ground motions was evaluated from three aspects: the influence of spectral shape, damping reduction factor, and the equivalent linear method. Based on the analysis results, the study proposed modification for damping reduction factor and equivalent damping ratio to account for the pulse-like effect. The predictive results using the proposed equivalent approach were also utilized as an alternative IMs to estimate isolation displacements.
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Lin, Yu-Chen, and 林禹辰. "Experimental and Analytical Study of a Structure with Frictional Pendulum Bearings Subject to Near-Fault Ground Motions." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/r98hzu.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>106<br>The isolation systems are used to improve seismic capacity of the structure, increasing period makes the acceleration of superstructure decrease. Therefore, adding isolators can decrease the input energy, so that the superstructure keeps elastic under design earthquake, but the isolator will get lager displacement. In far-fault region, isolation system have been proven to be an effective way to improve structural seismic capacity. The difference between near-fault and far-fault earthquake is that near-fault record has pulse-like signal with a long period of velocity pulse (pulse period, Tp), the signal is able to make the isolator displacement be larger and lead isolation system damage. This study would perform shaking table tests on a structure with frictional pendulum bearings in the second lab of NCREE (National Center for Research on Earthquake Engineering). The advantage of the shaking table in the second lab of NCREE is that the shaking table has powerful performance, long-stroke and high-velocity, so that it can simulate the characteristics of pulse-like records. The selected records divide into 5 groups: 10 pulse-like records with short Tp (group 1), 10 pulse-like records with medium Tp (group 2), 10 non-pule records (group 3), 10 record of artificial ground motions (group 4), and 5 records of famous earthquakes in Taiwan (group 5). To discuss the effect that the response of the isolation system when the records of different groups hit. The results show that pulse period Tp is an important parameter for the response of isolation system; if the average response spectrum are similar, the average response of the isolation system are larger as the pulse-like records hit than as the non-pule records hit; even if the response spectrum of the artificial records is similar to the one of the pulse-like records, the response of the pulse-like record is larger than the one of the artificial records corresponding to the pulse-like record. In addition, the analytical model, FPBearingPTV, in OpenSees is used to compare with experimental results.
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Books on the topic "Friction Pendulum Bearing"

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Evaluation, Highway Innovative Technology, and Inc Staf Earthquake Protection Sys. Evaluation Findings for Earthquake Protection Systems, Inc. Friction Pendulum Bearings: Friction Pendulum Bearings (Technical Evalutation Report). Civil Engineering Research Foundation and Int, 1998.

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Inc, Earthquake Protection Systems, and Highway Innovative Technology Evaluation Center (U.S.), eds. Evaluation findings for Earthquake Protection Systems, Inc.: Friction pendulum bearings. Civil Engineering Research Foundation, 1998.

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Book chapters on the topic "Friction Pendulum Bearing"

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Sodha, Ankit, Sandip Vasanwala, Devesh Soni, and Shailendra Kumar. "A Comparative Study of Seismic Response of Structure Isolated with Triple Friction Pendulum Bearing and Single Friction Pendulum Bearing Under Different Hazard Levels of Earthquake." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5235-9_19.

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Sodha, Ankit, Sandeep Vasanwala, and Devesh Soni. "Seismic Response of Structure Isolated with Quintuple Friction Pendulum Bearing Under Directivity Focusing Earthquakes." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0886-8_51.

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Gołębiowska, Irena, and Maciej Dutkiewicz. "Application of Friction Pendulum Bearings in Multistory Buildings." In Springer Proceedings in Physics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54136-1_46.

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Ingham, Tim J. "Modeling of friction pendulum bearings for the seismic analysis of bridges." In Computational Fluid and Solid Mechanics. Elsevier, 2001. http://dx.doi.org/10.1016/b978-008043944-0/50623-5.

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Ou, Jinping, Peisong Wu, and Xinchun Guan. "Resilient Isolation-Structure Systems with Super-Large Displacement Friction Pendulum Bearings." In Resilience of Critical Infrastructure Systems. CRC Press, 2020. http://dx.doi.org/10.1201/9780367477394-8.

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Morgan, T., and S. Mahin. "Enhancing the performance capabilities of seismically isolated buildings using multi-stage friction pendulum sliding bearings." In World Forum on Smart Materials and Smart Structures Technology. CRC Press, 2008. http://dx.doi.org/10.1201/9781439828441.ch152.

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Conference papers on the topic "Friction Pendulum Bearing"

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Qing-hai, Feng. "Research and Application of Anisotropic Friction Pendulum Isolation Bearing." In 2018 3rd International Conference on Smart City and Systems Engineering (ICSCSE). IEEE, 2018. http://dx.doi.org/10.1109/icscse.2018.00071.

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Tsai, C. S., Yung-Chang Lin, and H. C. Su. "Mechanical Characteristic of Multiple Direction Optimized-Friction Pendulum System." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77441.

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Presented in this paper is the detailed mechanical characteristic of the multiple direction optimized-friction pendulum system. Based on the equilibrium equations, mathematical formulations describing the sliding motions of the multiple direction optimized-friction pendulum system have been derived. The mechanical behavior of the multiple DO-FPS isolation system under cyclic loadings has been investigated. The parametrical study for the multiple DO-FPS isolation bearing has also been carried out to realize its various characteristics under different parameters. It is demonstrated that the natural period and damping effect of the multiple DO-FPS isolator are a function of the sliding direction, displacement and coefficient of friction.
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Tsai, C. S., Wen-Shin Chen, Yung-Chang Lin, and Chi-Lu Lin. "Seismic Mitigation Assessment of Building Using Multiple Direction Optimized-Friction Pendulum System." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61366.

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In order to prevent a building near a fault from earthquake damage, in this study an advanced base isolation system called the multiple direction optimized-friction pendulum system (Multiple DO-FPS or MDO-FPS) is proposed and examined to address its mechanical behavior through the finite element formulation and evaluate its efficiency in seismic mitigation through a series of shaking table tests. On the basis of the finite element formulation, it is revealed that the natural period, the capacity of the bearing displacement and damping effect for the Multiple Direction Optimized-Friction Pendulum System (Multiple DO-FPS) change continually during earthquakes. Therefore, the MDO-FPS isolator can avoid possibility of resonance of enriched frequencies from ground motions and provide an efficient capacity of the bearing displacement and damping during the earthquakes. Simultaneously, the shaking table test results also illustrate that the Multiple DO-FPS isolator possesses an outstanding seismic mitigation capabilities.
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Tsai, C. S., Yung-Chang Lin, H. C. Su, and Ya-Fang Tseng. "Nonlinear Analyses of a Building Isolated With Multiple Trench Friction Pendulum System Under Multi-Directional Excitations." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25594.

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The multiple trench friction pendulum system (MTFPS) which has numerous sliding interfaces in each of two perpendicular directions can provide different natural periods, displacement capacities and damping effects at various levels of displacements in the individual direction. In order to characterize the mechanical behavior of the MTFPS isolator under multi-directional earthquakes, a plasticity model named as the multiple yield and bounding surfaces model is proposed in this study. Investigations for buildings isolated with TFPS isolators and subjected to multi-directional excitations have been carried out to assess the performance of the MTFPS isolation bearing in seismic mitigation through numerical analyses. Results from numerical analyses illustrate that the MTFPS isolation bearing can isolate most earthquake induced energy and provide good protection for structures from earthquake damage.
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Wang Jian-qiang, Zhao Jun, and Ding Yong-gang. "Influence of the bilateral coupled effect of the bearing on the seismic response of the structure isolated by friction pendulum system." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5535307.

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Hori, Kohei, Iwao Hayashi, and Nobuyuki Iwatsuki. "Determination of the Tooth Surface Friction Coefficient of a Pair of Mating Gears Based on the Distribution Along the Tooth Profile Precisely Measured With the Gravity Pendulum Method." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/ptg-14371.

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Abstract A new gravity pendulum method has been proposed in order to precisely measure the tooth surface friction coefficient of a pair of mating gears excluding the bearing loss. In this method, one of the mating gears, which is fixed on a gravity pendulum, is put on the other gear, which is fixed on the ground, and is freely oscillated. The center-to-center distance between the mating gears is kept constant with a flexure hinge mechanism in order to accurately reproduce the relative motion, including rolling and sliding, between the tooth surfaces of practical rotating gears. This method has a great advantage, in that the tooth surface friction co-efficient can be measured in a very small region of the tooth profile, because the initial oscillation amplitude can be set approximately one arc-degree. The distribution of the friction coefficients along the tooth surface has been precisely measured for the exact one pair-, inexact one pair-, and two pair-tooth engagements of an internal gear pair and an external gear pair. Also, the mean values of the distributed tooth surface friction coefficients are calculated by taking the specific sliding between the tooth surfaces into account, and are compared with each other.
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Tsai, C. S., Yung-Chang Lin, and H. C. Su. "Characteristic and Modeling of Multiple Direction Optimized-Friction Pendulum System With Numerous Sliding Interfaces Subjected to Multi-Directional Excitations." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25598.

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In this paper, a base isolator call the multiple direction optimized-friction pendulum system (Multiple DO-FPS) with numerous sliding interfaces is proposed. For understanding the mechanical behavior of the Multiple DO-PFS isolator under multi-directional excitations, an analytical model called the multiple yield and bounding surfaces model is also proposed. On the basis of the derived mathematical formulations for the simulation of the characteristic of the Multiple DO-FPS isolation bearing, it is revealed that the natural period and damping effect for a Multiple DO-FPS is a function of the sliding displacement and sliding direction. By virtue of the proposed model, the phenomena of the sliding motions of the Multiple DO-FPS isolator with numerous sliding interfaces subjected to multi-directional excitations can be simply understood. Analytical results infer that the natural frequency and damping effect of the Multiple DO-PFS isolator with numerous concave sliding interfaces change continually during earthquakes and are controllable through appropriate designs.
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Underwood, Jess, and R. Gordon Kirk. "Stability Considerations for a Vertical Mount Energy Storage Flywheel." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48465.

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The optimum design of a flywheel mechanical battery system would have a minimum friction resistance from the bearings and the aerodynamic drag forces acting on the rotor system. To investigate the complexities involved in the design of a flywheel mechanical battery system, a test rig has been constructed at the Virginia Tech Rotor Dynamics Laboratory. This test rig consists of a fifty-pound steel flywheel that is mounted on a vertical shaft system and driven by a brushless permanent magnet motor. Initially, it was thought that the rotor could be supported with a single bearing, positioned at the upper mount point of the rotor. This pendulum-type configuration was found to have a major instability at low frequency. This paper will discuss these initial results and the further analysis and testing of a two bearing vertical shaft design. In addition, analyses of both systems have been performed using DyRoBeS, a finite element based rotor dynamics analysis code. The conclusions and recommendations presented here will be of interest to designers of future vertical rotors for such flywheel systems.
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Abanteriba, Sylvester. "Analysis of the Lubrication Condition of a Crosshead Pin Bearing of a Large Marine Diesel Engine." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77415.

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The main function of the crosshead bearing of a crosshead engine is to transmit the load from the connecting rod, which is directly attached to the piston of the engine, through a second rod to the guide shoe, which bears the entire crosshead. Apart from this function it enables the large normal forces, which are usually borne by the piston skirt in the case of a trunk piston engine, to be transmitted to the guide shoe from which it is subsequently transmitted to the rails along which the guide shoe glides. The dynamics of the crosshead bearing is such that the bearing pin is subjected to very low levels of incomplete rotation resembling that executed by a pendulum over a reduced arc. The bearing is also subjected to the load in only one direction. These operating conditions augur poorly for the formation of the hydrodynamic oil film necessary to support the imposed load. This type of bearing is therefore susceptible to considerable friction losses and significant wear as a result of lack of the capacity to generate lubrication film. This paper evaluates a model to determine the levels of achievable hydrodynamic film and the measures introduced to generate a hydrostatic squeeze lubricating film in the bearing as a result of the introduction of high pressure oil during part of the operating cycle of the engine.
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Kavvadias, Ioannis, Henrick Bibo, and Lazaros Vasiliadis. "FINITE ELEMENT MODELING OF SINGLE AND MULTI-SPHERICAL FRICTION PENDULUM BEARINGS." In 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2017. http://dx.doi.org/10.7712/120117.5733.18107.

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Reports on the topic "Friction Pendulum Bearing"

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Friction Pendulum™ - Seismic Isolation Bearings. Purdue University, 2007. http://dx.doi.org/10.5703/1288284315802.

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