Research studies into the effects of transient loading on the Tyne Bridge
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Published:1995
David M. Lilley, BSc, PhD CEng MICE, 1995. "Research studies into the effects of transient loading on the Tyne Bridge", Arch bridges: Proceedings of the First International Conference on Arch Bridges held at Bolton, UK on 3–6 September 1995, Clive Melbourne
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A study has been made of the transient response of the central arched span of the Tyne Bridge at Newcastle. Predicted values of resonant frequencies and associated displacement mode shapes were obtained from an eigensolution of a finite element model of the bridge.
Physical measurements of traffic-induced vibration indicated that some low-amplitude excitation was occurring at resonant frequencies of the bridge, but that this can be regarded as structurally insignificant.
An analysis of wind loading using modern design techniques proved the bridge to be “mildly dynamic” under extreme wind loading; the predicted maximum amplitude of lateral deflection of the deck is about 97 mm (≈ span/1680), suggesting that wind effects are not a serious threat to the arched structure.
INTRODUCTION
BRIDGE CONSTRUCTION
TRANSIENT LOADS
STRUCTURE OF THE CENTRAL SPAN
FINITE ELEMENT MODEL
RESULTS FROM DYNAMIC ANALYSIS
FIELD MEASUREMENTS
CONCLUDING COMMENTS
ACKNOWLEDGEMENTS
REFERENCES
