Nowadays large civil structures such as stadia and basketball fields host many events that they were not originally designed for. In particular, live rock concerts are the ones raising problems linked to the higher level of vibrations reached and sometimes maintained for a significant duration. These vibration levels must be evaluated against the serviceability levels given in existing guidance in order to prevent dangerous situations, such as panic or other uncontrollable phenomena in the crowd. Standards exist to evaluate vibration levels, among them the most widely used are ISO2631 and BS6841, which differ in the frequency weighting used and in the quantities used to identify the vibration, even though the starting point is the same measured time histories. In this paper the two standards are compared in different situations to evaluate their efficiency in detecting anomalous vibration levels. The comparison is performed considering different events in the same structure (G. Meazza Stadium in Milano) and comparing the same event in two different structures (Red Hot Chili Peppers in the Milano and Manchester Stadium). The obtained results are a good starting base for the evaluation of the performance of the standards and also to evaluate the performance in terms of vibration serviceability of the different structures.

Evaluation of serviceability assessment measures for different stadia structures and different live concert events / Caprioli, A; P., Reynolds; Vanali, Marcello. - ELETTRONICO. - (2007), pp. 235-245. (Intervento presentato al convegno IMAC XXV (International Modal Analysis Conference) tenutosi a Orlando).

Evaluation of serviceability assessment measures for different stadia structures and different live concert events

VANALI, Marcello
2007-01-01

Abstract

Nowadays large civil structures such as stadia and basketball fields host many events that they were not originally designed for. In particular, live rock concerts are the ones raising problems linked to the higher level of vibrations reached and sometimes maintained for a significant duration. These vibration levels must be evaluated against the serviceability levels given in existing guidance in order to prevent dangerous situations, such as panic or other uncontrollable phenomena in the crowd. Standards exist to evaluate vibration levels, among them the most widely used are ISO2631 and BS6841, which differ in the frequency weighting used and in the quantities used to identify the vibration, even though the starting point is the same measured time histories. In this paper the two standards are compared in different situations to evaluate their efficiency in detecting anomalous vibration levels. The comparison is performed considering different events in the same structure (G. Meazza Stadium in Milano) and comparing the same event in two different structures (Red Hot Chili Peppers in the Milano and Manchester Stadium). The obtained results are a good starting base for the evaluation of the performance of the standards and also to evaluate the performance in terms of vibration serviceability of the different structures.
2007
978-160423759-7
Evaluation of serviceability assessment measures for different stadia structures and different live concert events / Caprioli, A; P., Reynolds; Vanali, Marcello. - ELETTRONICO. - (2007), pp. 235-245. (Intervento presentato al convegno IMAC XXV (International Modal Analysis Conference) tenutosi a Orlando).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2545457
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