Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations
Based on the principle of conservation of energy, analytical modelling of the energy response of continuous beam bridges with friction pendulum bearing (FPB) was carried out for foundation-induced vibrations. A three-dimensional finite element analysis of a multispan continuous concrete girder bridg...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/3724835 |
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| author | Bing Li Bin Wang Shaohua Wang Xiao Wu |
| author_facet | Bing Li Bin Wang Shaohua Wang Xiao Wu |
| author_sort | Bing Li |
| collection | DOAJ |
| description | Based on the principle of conservation of energy, analytical modelling of the energy response of continuous beam bridges with friction pendulum bearing (FPB) was carried out for foundation-induced vibrations. A three-dimensional finite element analysis of a multispan continuous concrete girder bridge with FPB was established using the nonlinear time-history method to verify the accuracy of analytical modelling. The influence of the friction coefficient and isolation period of the FPB on the energy response of isolated bridge was then investigated under multihazard source excitations (e.g., El Centro and Taft waves) with different dominant periods and durations. The variations of structural response energy, sliding displacement, energy dissipation ratio, and acceleration of the isolated bridges are plotted. The results of analytical modelling and finite element simulation show good agreement. In addition, there exist particular values of the friction coefficient and isolation period of FPB, for which the structural response energy of the isolated bridges attains the minimum value. The optimal parameters of FPB are greatly influenced by seismic waves, and the friction coefficient of FPB should be increased with the increase of seismic fortification intensity. In addition, the energy dissipation capacity of FPB used in isolated bridge is excellent. |
| format | Article |
| id | doaj-art-b4933347ee2340388372303f59940e70 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b4933347ee2340388372303f59940e702025-02-03T06:46:28ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/37248353724835Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source ExcitationsBing Li0Bin Wang1Shaohua Wang2Xiao Wu3School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaCollege of Engineering, Design and Physical Sciences, Brunel University London, London, UKSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaBased on the principle of conservation of energy, analytical modelling of the energy response of continuous beam bridges with friction pendulum bearing (FPB) was carried out for foundation-induced vibrations. A three-dimensional finite element analysis of a multispan continuous concrete girder bridge with FPB was established using the nonlinear time-history method to verify the accuracy of analytical modelling. The influence of the friction coefficient and isolation period of the FPB on the energy response of isolated bridge was then investigated under multihazard source excitations (e.g., El Centro and Taft waves) with different dominant periods and durations. The variations of structural response energy, sliding displacement, energy dissipation ratio, and acceleration of the isolated bridges are plotted. The results of analytical modelling and finite element simulation show good agreement. In addition, there exist particular values of the friction coefficient and isolation period of FPB, for which the structural response energy of the isolated bridges attains the minimum value. The optimal parameters of FPB are greatly influenced by seismic waves, and the friction coefficient of FPB should be increased with the increase of seismic fortification intensity. In addition, the energy dissipation capacity of FPB used in isolated bridge is excellent.http://dx.doi.org/10.1155/2020/3724835 |
| spellingShingle | Bing Li Bin Wang Shaohua Wang Xiao Wu Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations Shock and Vibration |
| title | Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations |
| title_full | Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations |
| title_fullStr | Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations |
| title_full_unstemmed | Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations |
| title_short | Energy Response Analysis of Continuous Beam Bridges with Friction Pendulum Bearing by Multihazard Source Excitations |
| title_sort | energy response analysis of continuous beam bridges with friction pendulum bearing by multihazard source excitations |
| url | http://dx.doi.org/10.1155/2020/3724835 |
| work_keys_str_mv | AT bingli energyresponseanalysisofcontinuousbeambridgeswithfrictionpendulumbearingbymultihazardsourceexcitations AT binwang energyresponseanalysisofcontinuousbeambridgeswithfrictionpendulumbearingbymultihazardsourceexcitations AT shaohuawang energyresponseanalysisofcontinuousbeambridgeswithfrictionpendulumbearingbymultihazardsourceexcitations AT xiaowu energyresponseanalysisofcontinuousbeambridgeswithfrictionpendulumbearingbymultihazardsourceexcitations |