2014
DOI: 10.1155/2014/503016
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A New Multiconstraint Method for Determining the Optimal Cable Stresses in Cable-Stayed Bridges

Abstract: Cable-stayed bridges are one of the most popular types of long-span bridges. The structural behaviour of cable-stayed bridges is sensitive to the load distribution between the girder, pylons, and cables. The determination of pretensioning cable stresses is critical in the cable-stayed bridge design procedure. By finding the optimum stresses in cables, the load and moment distribution of the bridge can be improved. In recent years, different research works have studied iterative and modern methods to find optim… Show more

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Cited by 9 publications
(6 citation statements)
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“…Sub-problem one (Sp1) is an internal force distribution optimization problem where Q is optimized with fixed X, as most of the "cable forces optimization" problems [18,19]. The most common and practical objective function of Sp1 is the weighted sum of members' strain energy.…”
Section: Problem Formulamentioning
confidence: 99%
“…Sub-problem one (Sp1) is an internal force distribution optimization problem where Q is optimized with fixed X, as most of the "cable forces optimization" problems [18,19]. The most common and practical objective function of Sp1 is the weighted sum of members' strain energy.…”
Section: Problem Formulamentioning
confidence: 99%
“…Zhang and Wang (2014) derived the cable equations for tension cables in their target state based on hanging chain line theory while considering temperature effects correction; they further employed a MATLAB calculation program to obtain the initial tension force of each bundle of diagonal cables. Asgari et al (2014) proposed a multiconstraint optimization method for determining the optimal tension force for cable-stayed bridges. The optimization method produces fewer bending moments and stresses in the bridge members and requires less simulation time than other methods.…”
Section: Introductionmentioning
confidence: 99%
“…Because cables have the characteristics of light-weight, largeflexibility, and small-damping, those are used in civil engineering, navigation engineering, aerospace engineering, and other fields usually [1][2][3][4]. In civil engineering, from the investigation of long-span stay-cable bridges, it can find that large-scale vibration of stay-cables may occur under the loads of winds, rains, pedestrians, or vehicles [5][6][7].…”
Section: Introductionmentioning
confidence: 99%