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斜拉桥作为高次超静定结构,其斜拉索力对梁的应力和变形起着决定性作用。因此,如何合理地确定索力,使斜拉桥处于合理的受力状态下,已成为斜拉桥设计中的关键问题。本文综合介绍了索力优化的概念,分析目前各种索力优化方法的优缺点,同时还提出了合理索力确定的原则。
As a high-order statically indeterminate structure, the cable-stayed bridge plays a decisive role in the stress and deformation of the beam. Therefore, how to reasonably determine the cable force and make the cable-stayed bridge under a reasonable stress state has become a key issue in the design of cable-stayed bridges. This paper introduces the concept of cable force optimization, analyzes the advantages and disadvantages of various cable force optimization methods, and also puts forward the principle of reasonable cable force determination.