基于AdaBoost算法的多层砖房震害影响因素评估

Evaluation of Influencing Factors of Earthquake Damage of Multi-storey Brick Building Based on AdaBoost Algorithm

多层砖房是最常用的结构形式之一,对其进行震害预测尤为重要,选择合适的影响因素是震害预测中最重要的环节之一。本文基于AdaBoost算法对多层砖房震害影响因素进行评估,给出影响因素重要度排序,并将结果与灰色关联分析法进行比较。研究发现结构合理性、地震峰值加速度、砖墙面积率和场地条件对多层砖房震害影响最大,因此在多层砖房震害预测中应优先考虑这4个因素,并在结构设计建造过程中予以足够重视。

Multi-storey brick houses are one of the most commonly used structural forms, so it is especially important to predict earthquake damage. Choosing the appropriate influencing factors is one of the most important aspects of earthquake damage prediction. Based on the Ada Boost algorithm, this paper evaluates the influencing factors of seismic damage of multi-storey brick buildings, gives the order of importance of factors, and compares the results with the gray correlation analysis method. It is concluded that the structural rationality, the peak acceleration of the earthquake, the area ratio of the brick wall and the site conditions are the most important, so it should be given enough attention in the process of structural design and construction.