id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
app01-10200	Čáp, Miroslav; Šána, Vladimír; Polák, Michal; Plachý, Tomáš	Experimental dynamic analysis of the footbridge across Jizera River in Mladá Boleslav	2024	7	.pdf	application/pdf	3696	207	58	Experimentally obtained data of the time behaviour of the oscillating bridge deck were stored on the hard drive and subsequently processed by Fast Fourier Transform (FFT), which transforms the original signal from the time domain to the frequency domain, and natural frequencies are depicted as local peaks. An ordinary traffic is usually simulated by: • Random footbridge crossing with a pedestrian flow density of the same order as the density during standard use of the structure, • excitation of torsional or bending vibration; two synchronized pedestrians stepping on the same foot at the same time; pacing frequency according to natural frequencies of empty structure, • excitation of lateral vibration; two synchronized pedestrians stepping on the same foot at the same time; pacing frequency according to natural frequen- cies of empty structure.	cache/app01-10200.pdf	txt/app01-10200.txt