Research Article
A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam
Table 10
Natural frequencies of Ong Nhieu bridge.
| Ong Nhieu | Frequencies (Hz) | Spans | Measurement times | Measurement directions | Traffic states |
| 1 | 1 | x | Minivans, cars, dumper trucks,…, 8 h 35 : 9 h 10 am, 17/6/2011 | 4.8 | z | 10.3 | 2 | x | Trucks, buses,…, 9 h 5 : 11 h am, 10/10/2011 | 4.8 | z | 10.5 | 3 | x | Minivans, cars, dumper trucks,…, 11 h: 12 h 20 am, 25/12/2011 | 4.9 | z | 10.3 | 4 | x | Minivans, cars, dumper trucks,…, 8 h: 90 h 45 am, 20/4/2012 | 4.8 |
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