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Structural performance of cable-stayed footbridges to the loss of cable(s)

Olamigoke, OA, Parke, GAR and Imam, M (2015) Structural performance of cable-stayed footbridges to the loss of cable(s)

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© 2015, Taylor & Francis Group, London.Cable-stayed footbridges have now become a popular option for footbridges. The cables are exposed and sometimes accessible therefore the likelihood of an accidental or intentional event leading to the loss of a stay is very high. The loss of a cable on a cable-stayed bridge is either evaluated using a dynamic amplification factor of 1.5–2.0 or by undertaking a detailed dynamic analysis. However, the loading on a footbridge and modal response of a footbridge is different from that of a traffic bridge. This paper presents the results of a three dimensional nonlinear dynamic analysis of a cable-stayed footbridge to the loss of cable(s) to fire and blast, with varying loads and numbers of cables lost. The research shows the application of full live load when a cable is lost gives DAF values similar to when two cables are lost when accidental load is applied. The DAF values obtained for the remaining cables, deck and pylon are higher than 2.0 except for the displacement of the pylon.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions : Surrey research (other units)
Authors :
Olamigoke, OA
Imam, M
Date : 1 January 2015
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:43
Last Modified : 23 Jan 2020 18:48

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