Integrated modeling method for dynamic behavior of ancient pagodas

Dynamic behavior model is essential to the reliability evaluation and restoration scheme of ancient pagodas. In this paper, the identification techniques and the main influence factors on the dynamic behavior of ancient pagodas are discussed, and the modeling method integrated the predominance of parameter forecast, sensitivity analysis, and model updating criteria is developed. The Huqiu pagoda in Suzhou City, a famous leaning pavilion-style masonry pagoda, was selected as a research case to present the application characteristics of the method. A 3D finite element model of this pagoda has been constructed, and the main structural parameters were updated according to the model updating criteria to match with the measured dynamic characteristics of ambient vibration test to ensure the validity of the model.