Fundamental Frequencies of Vibration of Footbridges in Portugal: From In Situ Measurements to Numerical Modelling

Table 4

Acceleration limits recommended in some codes (Figure 10(a)).

Regulation	Vertical acceleration (m/s^2)	Horizontal acceleration (m/s^2)
BS5400 [18]	𝑎max≤0.5 ⋅𝑓	—
OHBDC (1983) [23]	𝑎max≤0.5⋅𝑓0^0.28	—
Eurocode [20]	𝑎max≤0.7	𝑎max≤0.2
Hong Kong (2002) [28]	𝑎max≤0.5 ⋅𝑓	𝑎max≤0.15