Abstract—Cable stayed bridges are one of the most advanced
bridges ever built. This type of bridges geometrically is similar
to suspension bridges, but their structural behaviors are so
different. In the last decade for bridges with span length
(500-1000 m), the cable stayed bridges have been more
welcomed. In comparison with suspension bridges, the cable
stayed bridges have advantages like the simple construction of
foundations. In this paper, for a specific cable stayed bridge
three different connection systems including radial, harp and
fan are designed and modeled by finite-element software
(ANSYS). Based on the results of static analysis of bridges, the
elements which have the maximum internal forces are chosen.
The influence lines of shear force, axial force of cables and
bending moments of selected elements are drawn for three
bridge types. The results indicate that, for bridges subjected to
high concentrated loads, bridges with radial and fan cables have
better structural performance and for bridges subjected to high
distributed loads, bridges with harp cables have better
performance than the others.
Index Terms—Cable-stayed bridge, influence line, ANSYS
The authors are with the Civil Engineering from Azerbaijan University of
Tarbiat Moallem, Iran (e-mail: alvandme@gmail.com).
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Cite:F. Masoumi and A. Mehrabzadeh, "Application of Influence Lines on Static Analysis of
Cable-Stayed Bridges," International Journal of Engineering and Technology vol. 5, no. 6, pp. 689-693, 2013.
