Model Summary.

The investigation and analysis of building damage is the most direct and effective method to reveal its mechanism, but the statistics and analysis of building damage sample data near surface faults are obviously insufficient. Therefore, based on the influencing factors of building damage near surface faults, this article predicts the structural damage caused by the surface rupture effect of active faults. Through on-site investigation of earthquake damage and literature review, data collection was conducted on the seismic damage characteristics of buildings near surface fault zones, and a database of building damage near strong earthquake surface fault zones was established. Multiple linear and binary logistic regression models were used to quantitatively analyze the seismic damage of buildings. The results indicate that magnitude, types of fault, hanging wall and footwall of faults, width of surface rupture zone, fault distance, and vertical displacement have a significant impact on the seismic damage index of buildings. Based on earthquake damage examples, both prediction models have significant performance.

建筑震害的调查与分析是揭示其破坏机理最直接有效的手段，但地表断层附近建筑震害样本数据的统计与分析明显不足。为此，本文基于地表断层附近建筑震害的影响因素，开展活动断层地表破裂效应引发的建筑结构破坏预测研究。通过震害现场调查与文献调研，收集地表断层带附近建筑的震害特征数据，构建了强震地表断层带周边建筑震害数据库。采用多元线性回归与二元逻辑回归模型，对建筑震害进行定量分析。研究结果表明，震级、断层类型、断层上盘与下盘、地表破裂带宽度、断层距以及垂直位移，均对建筑震害指数具有显著影响。结合震害实例验证，两款预测模型均表现出优异的预测性能。