One of the major problems faced by historic cities today involves the conservation of heritage buildings. Damage suffered by these buildings can be irreversible and fast-acting, leading to their disappearance over a short period. The study and analysis of the origin of the damage suffered by these buildings have proved themselves to be key to their conservation. Non-destructive testing (NDT) can detect problems indiscernible to the naked eye, thereby preventing potential losses. In this paper, a non-invasive method for the diagnosis of building structures integrated with the Finite Element Method (FEM) was applied to the Tabernacle Chapel; a building included in the northwest wing of the Cathedral of Seville complex. Despite the many interventions carried out to date, the issue of the chapel's deterioration has yet to be entirely solved. This research describes the results of a detailed constructive and structural diagnosis methodology for heritage buildings. The data provided from NDT methods, such as Digital Image Processing (DIP), Infrared Thermography (IRT), Laser Levelling (LL), Ambient Vibration Testing (AVT), and Ground-Penetrating Radar (GPR), has been verified and integrated as boundary conditions in a 3D Finite Element Method (FEM) in order to establish the critical points of the structure, including the failure mechanisms. The results led to the conclusion that the main causes of deterioration involved the settling of the grandstand built in the northwest sector of the building and the effects of the thrusts of the dome on the lateral façades. An integrated implementation methodology of NDT and FEM has enabled accurate knowledge to be ascertained of the principal damage affecting this heritage building.

当今历史名城面临的主要问题之一是保护文物建筑。这些建筑物遭受的破坏可能是不可逆转的，并且作用迅速，导致它们在短时间内消失。对这些建筑物遭受破坏的原因进行的研究和分析已证明，它们对于保护它们至关重要。无损检测（NDT）可以检测肉眼无法识别的问题，从而避免潜在的损失。在本文中，将一种与有限元方法（FEM）集成的非侵入性建筑结构诊断方法应用于会幕教堂。塞维利亚大教堂大楼西北翼的建筑物。尽管迄今为止进行了许多干预，但教堂的恶化问题尚未完全解决。这项研究描述了针对文物建筑的详细构造和结构诊断方法的结果。通过NDT方法（例如数字图像处理（DIP），红外热成像（IRT），激光水平仪（LL），环境振动测试（AVT）和探地雷达（GPR））提供的数据已经过验证和集成为3D有限元方法（FEM）中的边界条件，以建立结构的临界点，包括破坏机制。结果得出结论，恶化的主要原因包括建筑物西北部建造的看台的沉降以及穹顶的推力对立面的影响。