TY - JOUR
T1 - Optimum Criss Crossing Cables in Multi-span Cable-stayed Bridges using Genetic Algorithms
AU - Arellano, Hiram
AU - Tolentino, Dante
AU - Gómez, Roberto
N1 - Publisher Copyright:
© 2018, Korean Society of Civil Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - A multi-objective optimization approach in order to find the optimal cable overlap length in multi-span cable-stayed bridges with criss-cross cables is presented. The multi-objective optimization is solved by considering three objectives: 1) the cost of the cable system, 2) the displacement at the top of the pylon and 3) the alternate live load on the bridge. An unconventional criss-cross cable system configuration in which cables criss-cross at the center of intermediate spans is used for a bridge with five spans and four pylons. Taking into account both the cable overlap length and the different occurrences of alternate live load, the set of optimal solutions was obtained by the use of genetic algorithms. Results indicate that the optimal cable overlap length corresponds to three criss-crossing cables that corresponds to 0.28 times the length of the central span. Research on multi-span cable-stayed bridges with criss-cross cables allows the analysis of another solution for the problem of stabilizing the displacement of intermediate pylons in this kind of bridge.
AB - A multi-objective optimization approach in order to find the optimal cable overlap length in multi-span cable-stayed bridges with criss-cross cables is presented. The multi-objective optimization is solved by considering three objectives: 1) the cost of the cable system, 2) the displacement at the top of the pylon and 3) the alternate live load on the bridge. An unconventional criss-cross cable system configuration in which cables criss-cross at the center of intermediate spans is used for a bridge with five spans and four pylons. Taking into account both the cable overlap length and the different occurrences of alternate live load, the set of optimal solutions was obtained by the use of genetic algorithms. Results indicate that the optimal cable overlap length corresponds to three criss-crossing cables that corresponds to 0.28 times the length of the central span. Research on multi-span cable-stayed bridges with criss-cross cables allows the analysis of another solution for the problem of stabilizing the displacement of intermediate pylons in this kind of bridge.
KW - alternate live loads
KW - criss-cross cables
KW - genetic algorithm
KW - multi-objective optimization
KW - multi-span cable-stayed bridges
UR - http://www.scopus.com/inward/record.url?scp=85057778415&partnerID=8YFLogxK
U2 - 10.1007/s12205-018-5736-2
DO - 10.1007/s12205-018-5736-2
M3 - Artículo
SN - 1226-7988
VL - 23
SP - 719
EP - 728
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
IS - 2
ER -