TY - JOUR
T1 - Parametric analysis of multi-span cable-stayed bridges under alternate loads
AU - Arellano, Hiram
AU - Gomez, Roberto
AU - Tolentino, Dante
N1 - Publisher Copyright:
© 2019 The Author(s). Published by RTU Press.
PY - 2019
Y1 - 2019
N2 - The influence of the stiffness of piers, pylons and deck in the behaviour of multi-span cable-stayed bridges under alternate live loads is analysed. The variation of these parameters is discussed considering both a harp cable system and a fan cable system. Different types of connections between pier-pylon and deck are also considered. Based on the behaviour of a three-span cable-stayed bridge, the variation of pier-pylon stiffness and deck stiffness was analysed. A similar state of stress and deflections was obtained for both a three-span and a multi-span cable-stayed bridge. The study shows that the harp type system presents advantages compared to fan type in terms of its behaviour under alternate live loads considering the same values of deck stiffness and pier-pylon stiffness. It is demonstrated that the resistant mechanism of multi-span cable-stayed bridges is provided by the pier-pylon element.
AB - The influence of the stiffness of piers, pylons and deck in the behaviour of multi-span cable-stayed bridges under alternate live loads is analysed. The variation of these parameters is discussed considering both a harp cable system and a fan cable system. Different types of connections between pier-pylon and deck are also considered. Based on the behaviour of a three-span cable-stayed bridge, the variation of pier-pylon stiffness and deck stiffness was analysed. A similar state of stress and deflections was obtained for both a three-span and a multi-span cable-stayed bridge. The study shows that the harp type system presents advantages compared to fan type in terms of its behaviour under alternate live loads considering the same values of deck stiffness and pier-pylon stiffness. It is demonstrated that the resistant mechanism of multi-span cable-stayed bridges is provided by the pier-pylon element.
KW - Alternate live loads
KW - Cable-stayed bridges
KW - Multi-span bridges
KW - Pier-pylon-deck stiffness
UR - http://www.scopus.com/inward/record.url?scp=85077198633&partnerID=8YFLogxK
U2 - 10.7250/bjrbe.2019-14.457
DO - 10.7250/bjrbe.2019-14.457
M3 - Artículo
SN - 1822-427X
VL - 14
SP - 543
EP - 567
JO - Baltic Journal of Road and Bridge Engineering
JF - Baltic Journal of Road and Bridge Engineering
IS - 4
ER -