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首页> 外文期刊>International journal of steel structures >Ultimate behavior of steel cable-stayed bridges - II. Parametric study -
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Ultimate behavior of steel cable-stayed bridges - II. Parametric study -

机译：钢斜拉桥的极限性能-II。参数研究-

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摘要

This paper presents the characteristics of the ultimate behavior of steel cable-stayed bridges through considering various geometric parameters. Steel cable-stayed bridges show complex ultimate behavior, because of their geometric characteristics and various nonlinearities. In this study, the patterns of the ultimate behavior of steel-cable stayed bridges under the critical live load case are classified. In addition, the effects of various geometric parameters on the ultimate behavior, such as cable-arrangement type, height of the girder and mast, and area of the stay cables, are studied. For rational analytical research, the analysis method suggested in the previous paper, Ultimate behavior of steel cable-stayed bridges-I. Rational ultimate analysis method (Kim et al., 2016), is mainly used. Using the analysis method, the main geometric and material nonlinearities, such as the cable sag effect, beam-column effect of the girder and mast, large-displacement effect, girder-mast-cable interaction, and gradual yield effect of steel members, are reflected and considered in the analytical research. After the analytical study, the characteristics of the change of ultimate mode and load carrying capacity are investigated, with respect to the change of various geometric parameters.
机译：本文通过考虑各种几何参数，介绍了钢斜拉桥的极限特性。钢斜拉桥由于其几何特征和各种非线性而显示出复杂的极限行为。在这项研究中，对在关键活荷载情况下的钢索斜桥的最终行为模式进行了分类。此外，还研究了各种几何参数对最终性能的影响，例如电缆布置类型，梁和桅杆的高度以及斜拉索的面积。为了进行合理的分析研究，请使用前一论文中提出的分析方法，即钢斜拉桥的极限性能-I。主要使用理性最终分析方法（Kim等，2016）。使用分析方法，可以得出主要的几何和材料非线性，例如电缆垂度效应，大梁和桅杆的梁柱效应，大位移效应，大梁-索索相互作用以及钢构件的逐渐屈服效应。在分析研究中得到反映和考虑。经过分析研究，针对各种几何参数的变化，研究了极限模态和承载能力的变化特征。

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