Resilient infrastructure is nowadays attracting attention when designing new infrastructure projects. However, many countries around the world still have a large stock of existing transport infrastructure, such as railways and roads. In particular, masonry bridges are significantly widespread in Europe. These bridges, built a long time ago could suffer structural damage due to earthquakes, as their design in the past did not take this into account. The issue becomes critical because the scientific world still lacks cutting-edge monitoring techniques and calculation tools to accurately assess the integrity of existing bridges. These steps are fundamental before any maintenance activities are developed by infrastructure managers. In this study, the seismic behaviour of a seven-span masonry arch bridge is intensively investigated in order to provide new insights into the seismic vulnerability analysis of existing masonry bridges. In particular, parametric analyses are carried out to assess the effect of haunching, fill, and pier cross-section types on the seismic capacity of multi-span masonry bridges. Interesting observations were made on the change in ductility, capacity, and stiffness of the structure when the studied parameters are modified.

如今，在设计新的基础设施项目时，弹性基础设施备受关注。然而，世界上许多国家仍然拥有大量现有的交通基础设施，例如铁路和公路。特别是，砌体桥在欧洲非常普遍。这些很久以前建造的桥梁可能会因地震而遭受结构损坏，因为它们过去的设计没有考虑到这一点。这个问题变得至关重要，因为科学界仍然缺乏尖端的监测技术和计算工具来准确评估现有桥梁的完整性。这些步骤是基础设施经理开发任何维护活动之前的基础。在这项研究中，对一座七跨砌体拱桥的抗震性能进行了深入研究，以便为现有砌体桥梁的抗震脆弱性分析提供新的见解。特别是，进行参数分析以评估拱形、填充和桥墩横截面类型对多跨砌体桥抗震能力的影响。当研究的参数被修改时，对结构的延展性、承载力和刚度的变化进行了有趣的观察。