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首页> 外文期刊>Computers & Structures >Determination of initial cable forces in prestressed concrete cable-stayed bridges for given design deck profiles using the force equilibrium method
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Determination of initial cable forces in prestressed concrete cable-stayed bridges for given design deck profiles using the force equilibrium method

机译：使用力平衡法确定给定设计甲板型式的预应力混凝土斜拉桥的初始拉力

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摘要

The determination of initial cable forces in a prestressed concrete cable-stayed bridge for a given vertical profile of deck under its dead load is an important but difficult task that affects the overall design of the bridge. A new method utilizing the idea of force equilibrium is presented in this paper for their determination. The method can easily account for the effect of prestressing and the additional bending moments due to the vertical profile of the bridge deck. It is much more rational and simple than the traditional "zero displacement" method, and it is able to achieve bending moments in the bridge deck approaching those in a continuous beam over rigid simple supports.
机译：对于给定的甲板垂直剖面，在其静载作用下，确定预应力混凝土斜拉桥的初始缆索力是一项重要但艰巨的任务，它会影响桥梁的整体设计。本文提出了一种利用力平衡思想的新方法进行确定。该方法可以很容易地考虑到由于桥面板的垂直轮廓而产生的预应力和额外的弯矩。与传统的“零位移”方法相比，它更加合理和简单，并且能够在桥面板中获得在刚性简单支撑上接近连续梁中弯矩的弯矩。

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