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Abstract:
Taking a rigid-frame tied through CFST arch bridge as a study object, a finite element model was built with the software ANSYS/LS-DYNA. The process of its cable loss was simulated with the contact-impact method. The variation of the internal forces of its different structure members before and after cable loss was analyzed to determine the potential failure mode of the structure. The results showed that cables, CFST arch ribs and deck slabs all bear a impact due to a cable loss; among them, the influence of the cable loss on the adjacent cables is the largest and the variation of their axial forces exceeds three times of their initial values; therefore, the action of the dynamic force which is far greater than the static force action during the cable loss should be considered; the influence of cable loss on the main girder is significantly greater than that on the arch ribs; the local collapse of the deck system may occur due to the insufficient strength of the weld connection between transverse beams and longitudinal ones.
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Journal of Vibration and Shock
ISSN: 1000-3835
Year: 2014
Issue: 15
Volume: 33
Page: 144-149
Cited Count:
SCOPUS Cited Count: 9
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 4
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