Assessment of masonry arches subject to flooding

评估受洪水影响的砖石拱门

• 批准号: 1796582
• 金额: --
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1796582
• 关键词: Assessment; masonry; arches; subject; flooding

Abstract:The UK transport network is under an imminent threat; namely that of its aging masonry bridge stock. Apart from many issues such as being overloaded, the evermore increasing probability of flooding is in need of investigation. Masonry arches have proved highly resilient parts of modern infrastructure with their prolonged life proof of this. Consequently, further enlightening such as the above issues facilitates protecting them with immense financial, aesthetical and practical benefits.This research aims to develop an optimization between structural health monitoring and existent practical experience in the field of masonry arches and flooding. Thus one can be able to face different challenges and achieve multiple objectives, such as the identification of optimal monitoring devices, the safest location for these, accurate prediction of serviceability of the structure and costs optimization. Concerning the types of flooding involved, the work will be focused on fluvial floods as masonry bridges are usually river crossings and as a consequence effected by river flooding. Pluvial floods, instead, will not be taken into account in a primary stage of the research, but they will not be entirely neglected.Several issues will be considered in the modelling, some of which are: the identification of different failure modes due to different loading nature of floods, material behaviour alterations, vulnerable areas and geometries of existent bridges, the implementation of temporary defences, the best choice of different kinds of temporary defences.Concerning case studies, it is planned to contact local authorities and bridge owners. Thus starting from a regional scale, one could possibly test the ability of the implemented systems. A good starting point could be identified in the region of Cumbria and in specific Carlisle which due to the existence of multiple watercourses and drainage systems there are several high-risk areas of masonry arches being flooding. The annual disruption of rail and road connection being a testament to this.

翻译后摘要：英国的交通网络是一个迫在眉睫的威胁，即其老化的砖石桥梁股票。除了超载等许多问题外，洪水发生的可能性越来越大，需要进行调查。Massify拱门已被证明是现代基础设施的高弹性部分，其寿命延长证明了这一点。因此，进一步的启发，如上述问题，有利于保护他们与巨大的经济，美学和实际beneficies.This研究旨在开发结构健康监测和现有的实践经验之间的优化在该领域的砌体拱和洪水。因此，人们可以面对不同的挑战，并实现多个目标，如识别最佳监测设备，最安全的位置，准确预测结构的适用性和成本优化。关于所涉及的洪水类型，这项工作将侧重于河流洪水，因为砖石桥梁通常是河流过境点，因此会受到河流洪水的影响。相反，在研究的初级阶段不会考虑到洪水，但也不会完全忽视。在建模中将考虑几个问题，其中一些是：由于洪水的不同荷载性质、材料性能变化、现有桥梁的脆弱区域和几何形状、临时防御措施的实施，各种临时防御的最佳选择。关于案例研究，计划与地方当局和桥梁业主联系。因此，从区域范围开始，人们可以测试所实施系统的能力。一个很好的起点可以确定在坎布里亚地区和特定的卡莱尔，由于存在多个水道和排水系统，有几个高风险地区的砖石拱门被洪水淹没。每年铁路和公路连接中断就是一个证明。