Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records
To provide an important reference for the energy-based seismic design of long-period structures, the elastoplastic dynamic analysis program is employed to study the seismic energy response of single-degree-of-freedom (SDOF) systems under two types of typical long-period ground motions. Then, the inf...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6655400 |
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| author | Yu Cheng Yao-Rong Dong Li Qin Yuan-Yuan Wang Ye-Xue Li |
| author_facet | Yu Cheng Yao-Rong Dong Li Qin Yuan-Yuan Wang Ye-Xue Li |
| author_sort | Yu Cheng |
| collection | DOAJ |
| description | To provide an important reference for the energy-based seismic design of long-period structures, the elastoplastic dynamic analysis program is employed to study the seismic energy response of single-degree-of-freedom (SDOF) systems under two types of typical long-period ground motions. Then, the influencing relationships of external and internal factors on the energy response spectra under near-fault pulse-like and far-field harmonic ground motions are analyzed one by one. Study results are obtained as follows: within the whole period, all the input energy, hysteretic energy and damping energy spectra of SDOF systems under near-fault pulse-like and far-field harmonic ground motions, are larger than those under common ground motions, even the seismic energy response under far-field harmonic ground motions is larger than that under near-fault pulse-like ground motions. From the aspect of energy concept, the energy response spectra and energy distribution rule of SDOF systems are evaluated based on the intensity and spectral distribution under near-fault pulse-like and far-field harmonic ground motions. If the ratio of hysteretic energy to input energy (RHEIE) is determined, the hysteretic energy which must be dissipated by a structure would be derived by the method of energy-based design. The input energy and hysteretic energy are mainly influenced by damping ratio and ductility coefficient, while the yield stiffness ratio exerts minor effects. It indicates that reasonable structural design parameters would contribute to the hysteretic energy of a structure itself. |
| format | Article |
| id | doaj-art-5248f473f8734ccfa77e285a6d875f80 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-5248f473f8734ccfa77e285a6d875f802025-08-20T03:36:31ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66554006655400Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion RecordsYu Cheng0Yao-Rong Dong1Li Qin2Yuan-Yuan Wang3Ye-Xue Li4Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Hubei University of Arts and Science, Xiangyang 441053, ChinaHubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Hubei University of Arts and Science, Xiangyang 441053, ChinaHubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Hubei University of Arts and Science, Xiangyang 441053, ChinaHubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Hubei University of Arts and Science, Xiangyang 441053, ChinaHubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Hubei University of Arts and Science, Xiangyang 441053, ChinaTo provide an important reference for the energy-based seismic design of long-period structures, the elastoplastic dynamic analysis program is employed to study the seismic energy response of single-degree-of-freedom (SDOF) systems under two types of typical long-period ground motions. Then, the influencing relationships of external and internal factors on the energy response spectra under near-fault pulse-like and far-field harmonic ground motions are analyzed one by one. Study results are obtained as follows: within the whole period, all the input energy, hysteretic energy and damping energy spectra of SDOF systems under near-fault pulse-like and far-field harmonic ground motions, are larger than those under common ground motions, even the seismic energy response under far-field harmonic ground motions is larger than that under near-fault pulse-like ground motions. From the aspect of energy concept, the energy response spectra and energy distribution rule of SDOF systems are evaluated based on the intensity and spectral distribution under near-fault pulse-like and far-field harmonic ground motions. If the ratio of hysteretic energy to input energy (RHEIE) is determined, the hysteretic energy which must be dissipated by a structure would be derived by the method of energy-based design. The input energy and hysteretic energy are mainly influenced by damping ratio and ductility coefficient, while the yield stiffness ratio exerts minor effects. It indicates that reasonable structural design parameters would contribute to the hysteretic energy of a structure itself.http://dx.doi.org/10.1155/2021/6655400 |
| spellingShingle | Yu Cheng Yao-Rong Dong Li Qin Yuan-Yuan Wang Ye-Xue Li Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records Advances in Civil Engineering |
| title | Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records |
| title_full | Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records |
| title_fullStr | Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records |
| title_full_unstemmed | Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records |
| title_short | Seismic Energy Response of SDOF Systems Subjected to Long-Period Ground Motion Records |
| title_sort | seismic energy response of sdof systems subjected to long period ground motion records |
| url | http://dx.doi.org/10.1155/2021/6655400 |
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