Abstract Footbridges are among long-span light-weight structures that because of their low damping ratio susceptible to vibration. Excessive vibration in footbridges usually occurs when they subjected rhythmic dynamic loads caused by human activities like walking and running. In order mitigate the induced vibrations footbridges, an increase is often suggested as most economical approach. Tuned ...

The paper focuses on the optimal design of grounded tuned mass damper inerter (TMDI) in footbridges and some practical implementation issues. An procedure is implemented for perfectly ideal TMDI (infinite stiffness connection at ground plus linear nondissipative inerter). based reduced-order models footbridge by assuming frequency ratio damping factor as parameters, a given number values inerta...

On its opening day the London Millennium footbridge experienced unexpected large amplitude wobbling subsequent to the migration of pedestrians onto the bridge. Modeling the stepping of the pedestrians on the bridge as phase oscillators, we obtain a model for the combined dynamics of people and the bridge that is analytically tractable. It provides predictions for the phase dynamics of individua...

JF Mr. John Haworth, the Manager of the Sheffield Sewage Disposal Department at Wincobank, has considerable inroads made upon his time by deputations from other Councils and by other interested observers, he is paying the penalty of being a pioneer and the possessor of a courteous and interesting personality. We were informed by a friendly guide, who directed us to the works by way of an unhall...

The purpose of designing the active suspension systems is providing comfort riding and good handling in different road disturbances. In this paper a novel control method based on adaptive neuro fuzzy system in active suspension system is proposed. Choosing the proper data base to train the ANFIS has an important role in increasing the suspension system’s performance. The data base which is used...