Digital Damage Measurement and Analysis of Masonry Heritage Based on Degradation Measurement Method (MMD)

Abstract. Preventive conservation of architectural heritage is a crucial component of heritage preservation efforts.The measurement and analysis of damage data in architectural heritage facilitate early assessment of damage severity and the development of appropriate preventive and restoration strategies.This study focuses on modern masonry architectural heritage, using Jixi Building of the Puppet Manchurian Palace Museum in Changchun, China as a case study. Three-dimensional laser scanning technology is employed to collect damage data of facade materials, which are then translated and visualized through the generation of a damage atlas.We apply the Degradation Measurement Method (MMD) to conduct statistical and quantitative analysis of facade material damage in architectural heritage. Its innovation lies in the real-time acquisition and analysis of damage data to reveal the spatial distribution patterns of defects, and in the calculation of damage factors to objectively assess the health condition of masonry facade materials. As a digital damage measurement and analysis technique, the application of MMD in the field of architectural heritage conservation enables timely investigation of facade damage, saving valuable response time and significantly reducing the consumption of human and material resources, while providing data-based support for restoration design; through the use of timely dynamic data to evaluate the effectiveness of restoration strategies, it improves the predictive efficiency of restoration implementation and holds significant scientific value for the preventive conservation of heritage damage and the management of historic buildings.