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

Table 10

Acceleration measured at 1/2 span for the normal walking.

Direction	Acceleration at 1/2 span [mg]
	Measuring device		Analytic model
	133	LN874
Longitudinal	0.25	0.20	0.24
Lateral	2.00	2.00	2.00
Vertical	3.50	3.20	4.50