Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models
During the past decades, wind-induced vibrations of bridge stay cables were reported to occur under various incipient conditions. The ice formation on stay cables is one of these conditions, which causes the ice-accreted stay cables to alter their cross section geometry, thus modifying their aerodyn...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/6853047 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561264004431872 |
|---|---|
| author | Songyu Cao Himan Hojat Jalali Elena Dragomirescu |
| author_facet | Songyu Cao Himan Hojat Jalali Elena Dragomirescu |
| author_sort | Songyu Cao |
| collection | DOAJ |
| description | During the past decades, wind-induced vibrations of bridge stay cables were reported to occur under various incipient conditions. The ice formation on stay cables is one of these conditions, which causes the ice-accreted stay cables to alter their cross section geometry, thus modifying their aerodynamic characteristics. Wind tunnel tests and several CFD simulations were performed for ice-accreted inclined bridge stay cables with two ice-accretion profiles dimensions, 0.5D and 1D, where D is the diameter of the cable. Wind-induced vibrations were analyzed experimentally for cable models with yaw inclination angles of 0°, 30°, and 60° and vertical inclination angles of 0° and 15°, for Reynolds numbers of up to 4 × 105. The aerodynamic drag and lift coefficients of the cable models and the pressure coefficients were determined from the CFD-LES simulations. The experimental results indicated that the vertical and torsional vibrations of the ice-accreted stay cables increased with the increase of the vertical and yaw angles. Also, higher vertical and torsional vibration amplitudes were measured for the case with larger ice thickness, indicating the effect of the ice accretion profile on the cable wind-induced response. |
| format | Article |
| id | doaj-art-03fb7338e4dc4f68ae611fd4e767a5f8 |
| 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-03fb7338e4dc4f68ae611fd4e767a5f82025-02-03T01:25:28ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/68530476853047Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable ModelsSongyu Cao0Himan Hojat Jalali1Elena Dragomirescu2Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, ChinaCivil Engineering Department, University of Texas at Arlington, 425 Nedderman Hall, 416 Yates St., Arlington, TX 76019, USAFaculty of Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, CanadaDuring the past decades, wind-induced vibrations of bridge stay cables were reported to occur under various incipient conditions. The ice formation on stay cables is one of these conditions, which causes the ice-accreted stay cables to alter their cross section geometry, thus modifying their aerodynamic characteristics. Wind tunnel tests and several CFD simulations were performed for ice-accreted inclined bridge stay cables with two ice-accretion profiles dimensions, 0.5D and 1D, where D is the diameter of the cable. Wind-induced vibrations were analyzed experimentally for cable models with yaw inclination angles of 0°, 30°, and 60° and vertical inclination angles of 0° and 15°, for Reynolds numbers of up to 4 × 105. The aerodynamic drag and lift coefficients of the cable models and the pressure coefficients were determined from the CFD-LES simulations. The experimental results indicated that the vertical and torsional vibrations of the ice-accreted stay cables increased with the increase of the vertical and yaw angles. Also, higher vertical and torsional vibration amplitudes were measured for the case with larger ice thickness, indicating the effect of the ice accretion profile on the cable wind-induced response.http://dx.doi.org/10.1155/2018/6853047 |
| spellingShingle | Songyu Cao Himan Hojat Jalali Elena Dragomirescu Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models Shock and Vibration |
| title | Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models |
| title_full | Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models |
| title_fullStr | Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models |
| title_full_unstemmed | Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models |
| title_short | Wind-Induced Response of Inclined and Yawed Ice-Accreted Stay Cable Models |
| title_sort | wind induced response of inclined and yawed ice accreted stay cable models |
| url | http://dx.doi.org/10.1155/2018/6853047 |
| work_keys_str_mv | AT songyucao windinducedresponseofinclinedandyawediceaccretedstaycablemodels AT himanhojatjalali windinducedresponseofinclinedandyawediceaccretedstaycablemodels AT elenadragomirescu windinducedresponseofinclinedandyawediceaccretedstaycablemodels |