Optimization of piers for retaining walls
Optimization of piers for retaining walls
复制标题
挡土墙桥墩的优化
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
M. Aschheim
中科院分区：
文献类型：
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作者：
L. Gil;E. Hernández;M. Aschheim
钢筋混凝土构件在弯曲和轴向荷载作用下的极限强度设计是众所周知的，其解决方案可以追溯到20世纪50年代。在没有明确好处的情况下，工程师几乎没有动力改变解决方案方法，特别是考虑到当前的解决方案方法是众所周知的，不会引起争议。最近，以配筋尺寸图和最优域的形式提出了一种不同的求解方法，但在矩形截面上的应用有限，因此该方法主要是学术或理论上的兴趣。本文介绍了圆形截面体的应用，使圆形截面墩支承挡土墙的优点得以在常见情况下得以实现。使用本文提出的方法，与传统设计相比，纵向钢筋可以减少高达50%，从而节省大量资金，同时还减少了与钢筋混凝土结构的钢筋部分相关的温室气体排放。
The ultimate strength design of reinforced concrete members under flexure and axial loads is well known, with solutions dating back to the 1950s. There is little motivation for engineers to change solution approaches in the absence of a clear benefit, particularly given that current solution approaches are well-known and do not raise controversy. Recently, a different solution approach has been presented in the form of Reinforcement Sizing Diagrams and Optimal Domains, but applications to rectangular sections were limited and thus the approach has been mainly of academic or theoretical interest. This paper presents an application to circular sections, which allow the advantages to be realized in the commonly encountered situation of retaining walls supported by circular section piers. Using the approach presented herein, longitudinal reinforcement can be reduced up to 50% compared with traditional designs, allowing significant financial savings while also reducing the greenhouse gas emissions associated with the reinforcement component of reinforced concrete construction.