Research and Application of Methods for Estimating Setback Distance of Buildings on Active Fault Sites

From the perspective of earthquake disaster reduction planning and earthquake resilience of urban buildings, the earthquake damage and disaster reduction analysis of buildings on the surface track line of strong earthquakes are mainly concentrated in the aspect of building setback distance. Based on the examples of surface rupture damage caused by strong earthquakes, statistical analysis of the length and width of the surface rupture zone, the failure rate of structure collapse under different setback distances and the probability of surface rupture of the main fault rupture in strong earthquakes, this paper gives the relevant contents of the building setback distance estimation methods: one is the deterministic setback distance analysis method, the other is the probabilistic setback distance analysis method. The two methods are compared, and combined with the importance classification of civil structures, and a comprehensive method for estimating building setback distance is given. This method is an operable and practical building setback distance estimation method.