Seismic Response Reduction of Megaframe with Vibration Control Substructure
Megaframe with vibration control substructure (MFVCS) is a tuned mass damper system, which converts the substructures into the tuned mass. In this study, a kind of MFVCS using both lead-rubber bearings and viscous dampers to connect the vibration control substructure with the megaframe was proposed....
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/9427908 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832557040037265408 |
|---|---|
| author | Jun-Qi Huang Xun Chong Qing Jiang Xian-Guo Ye Han-Qin Wang |
| author_facet | Jun-Qi Huang Xun Chong Qing Jiang Xian-Guo Ye Han-Qin Wang |
| author_sort | Jun-Qi Huang |
| collection | DOAJ |
| description | Megaframe with vibration control substructure (MFVCS) is a tuned mass damper system, which converts the substructures into the tuned mass. In this study, a kind of MFVCS using both lead-rubber bearings and viscous dampers to connect the vibration control substructure with the megaframe was proposed. Then, based on a validated finite element model, a parametric analysis was conducted to study the effect of two parameters, the tuning frequency (i.e., the frequency of the substructure) and the damping provided by the lead-rubber bearings and viscous dampers on the seismic response reduction of the MFVCS under both frequent and rare earthquakes (i.e., probability of exceedance of 63% and 2% in 50 years, resp.). Furthermore, the optimized values of these two parameters were achieved. The results indicated that (1) the proposed MFVCS could provide a considerable seismic response reduction under frequent earthquake and showed a strong robustness; (2) the optimized values of the frequency ratio (ratio of tuning frequency to the megaframe’s natural frequency) and damping scale factor (ratio between the investigated damping and a standard value) were 0.96 and 1.0, respectively; and (3) the seismic response reduction of the MFVCS under rare earthquake was lower than that under frequent earthquake. |
| format | Article |
| id | doaj-art-92a2c6264d224e8fa15d521f2a8dd3ed |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-92a2c6264d224e8fa15d521f2a8dd3ed2025-02-03T05:43:49ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/94279089427908Seismic Response Reduction of Megaframe with Vibration Control SubstructureJun-Qi Huang0Xun Chong1Qing Jiang2Xian-Guo Ye3Han-Qin Wang4School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, ChinaMegaframe with vibration control substructure (MFVCS) is a tuned mass damper system, which converts the substructures into the tuned mass. In this study, a kind of MFVCS using both lead-rubber bearings and viscous dampers to connect the vibration control substructure with the megaframe was proposed. Then, based on a validated finite element model, a parametric analysis was conducted to study the effect of two parameters, the tuning frequency (i.e., the frequency of the substructure) and the damping provided by the lead-rubber bearings and viscous dampers on the seismic response reduction of the MFVCS under both frequent and rare earthquakes (i.e., probability of exceedance of 63% and 2% in 50 years, resp.). Furthermore, the optimized values of these two parameters were achieved. The results indicated that (1) the proposed MFVCS could provide a considerable seismic response reduction under frequent earthquake and showed a strong robustness; (2) the optimized values of the frequency ratio (ratio of tuning frequency to the megaframe’s natural frequency) and damping scale factor (ratio between the investigated damping and a standard value) were 0.96 and 1.0, respectively; and (3) the seismic response reduction of the MFVCS under rare earthquake was lower than that under frequent earthquake.http://dx.doi.org/10.1155/2018/9427908 |
| spellingShingle | Jun-Qi Huang Xun Chong Qing Jiang Xian-Guo Ye Han-Qin Wang Seismic Response Reduction of Megaframe with Vibration Control Substructure Shock and Vibration |
| title | Seismic Response Reduction of Megaframe with Vibration Control Substructure |
| title_full | Seismic Response Reduction of Megaframe with Vibration Control Substructure |
| title_fullStr | Seismic Response Reduction of Megaframe with Vibration Control Substructure |
| title_full_unstemmed | Seismic Response Reduction of Megaframe with Vibration Control Substructure |
| title_short | Seismic Response Reduction of Megaframe with Vibration Control Substructure |
| title_sort | seismic response reduction of megaframe with vibration control substructure |
| url | http://dx.doi.org/10.1155/2018/9427908 |
| work_keys_str_mv | AT junqihuang seismicresponsereductionofmegaframewithvibrationcontrolsubstructure AT xunchong seismicresponsereductionofmegaframewithvibrationcontrolsubstructure AT qingjiang seismicresponsereductionofmegaframewithvibrationcontrolsubstructure AT xianguoye seismicresponsereductionofmegaframewithvibrationcontrolsubstructure AT hanqinwang seismicresponsereductionofmegaframewithvibrationcontrolsubstructure |