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Simulation of the time-dependent phenomena effects in staggered erected cable-stayed bridges

机译:模拟交错竖立缆车桥梁中的时间依赖现象效应

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In a staggered erected cable-stayed bridge made of concrete, time-dependent phenomena effects might play an important role in both its geometry and its stress state. To guarantee that allowable stresses and deflections are not exceeded during erection, a number of simulation methods are presented in the literature. Some of these methods, concretely those based on a backward simulation approach, fail addressing the effects of the time-dependent phenomena. To simulate these effects, methods based on the forward simulation approach are traditionally followed. Nevertheless, the main trade-off of these algorithms is that their computation is based on complex iterative processes that make simulation more time consuming. To fill this gap, a new simulation algorithm, the Forward-Direct Algorithm (FDA), is formally presented in this paper to simulate the construction process of cable-stayed bridges including the time-dependent phenomena effects.
机译:在由混凝土的交错竖立的斜拉桥中,时间依赖的现象效果可能在其几何形状及其压力状态中起重要作用。为了保证勃起期间不超过允许的应力和偏转,文献中提出了许多模拟方法。其中一些方法,具体地基于向后仿真方法,失败解决时间依赖现象的影响。为了模拟这些效果,传统上是基于前向仿真方法的方法。然而,这些算法的主要权衡是它们的计算基于复杂的迭代过程,使模拟更耗时。为了填补该间隙,在本文中正式介绍了一种新的仿真算法,正向直接算法(FDA),以模拟包括时间依赖现象效应的缆绳桥梁的施工过程。

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