Evaluation of acceleration estimates due to pedestrian loading on an in-service footbridge

作者：de Sebastian J^*; Diaz I M; Casado C M; Poncela A V; Lorenzana A

来源：Informes de la Construccion, 2013, 65(531): 335-348.

DOI：10.3989/ic.12.025

• Footbridge
• Dynamic analysis
• Pedestrian-structure system
• Pedestrian load model

Pedestrian load models on the Valladolid Science Museum Footbridge have been evaluated in this paper following these steps: (i) experimental identification of the modal parameters using several methods for the modal mass estimation, (ii) estimation of acceleration response through pedestrian models given by codes, and (iii) development of experimental tests and comparison of acceleration records with acceleration estimates. The influence of pedestrians on the structural modal properties has been studied and its effects have been considered into the acceleration estimates, leading to better estimates. Then, this paper is an example of vibration analysis of an in-service footbridge focusing on the performance of vibration estimates as compared with experimental measures and on the influence of pedestrians on those estimates.

• 出版日期2013-9