A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam

Table 11

Lowest natural frequencies of some prestressed concrete bridges.

Bridges	Spans	Frequencies (Hz)
Ca Tre 1	1; 2; 3	4.6; 4.8; 4.9
Giong Ong To 2	1; 2; 3	4.8; 4.7; 4.6
Giong Ong To Moi	1; 2; 3	5; 4.8; 4.5
My Thuy 2	1; 2; 3	4.8; 4.9; 4.7
Sai Gon	1; 2; 3	3.8; 3.5; 3.4
Ben Nọc	1; 2; 3	5
Ong Nhieu	1; 2; 3	4.8; 3.3; 4.9
Binh Phuoc 1	1; 2; 3	4.9; 4.7; 4.8
Song Than 2	1; 2; 3	5