基于概率法的木构古建筑地震破坏综合评价方法  

A comprehensive method for evaluation of seismic damage in ancient wooden buildings based on probabilistic theory

作　　者：李宁 徐琳 郭小东[2] 王延辉[2] 

机构地区：[1]烟台市建筑设计研究股份有限公司,山东烟台264008 [2]北京工业大学抗震防灾研究所,北京100124

出　　处：《文物保护与考古科学》2012年第1期44-48,共5页Sciences of Conservation and Archaeology

基　　金：国家十一五科技支撑计划资助(2006BAJ06B01);中国工程院重大咨询项目资助(2010-ZD-4)

摘　　要：为了研究木构古建筑地震破坏状态评估的准确性,应用概率的方法,以结构损伤指数、最大层间位移角作为评价因子,建立了地震破坏综合评价模型,提出了基于概率法的木构古建筑地震破坏综合评价方法。该方法在综合现状分析与实验数据,在一定烈度下计算各种破坏状态等级中每一种破坏状态出现的概率,古建筑地震破坏状态应为概率最大的地震破坏状态,从而比较准确地判别木构古建筑地震破坏程度。并对经受过汶川地震的两种结构形式的古建筑进行了验证,从而验证了该方法的合理性和有效性。这一方法将提高木构古建筑震害预测的准确性,为古建筑抗震加固提供有效的理论支持。A probabilistic approach is proposed in order to study the accuracy of evaluations of earthquake damage to ancient wooden buildings.Two factors,the structural damage index and the maximum drift angle,are considered in establishing the evaluation model.The evaluation of earthquake damage to wood-based structures in ancient buildings is established by comprehensive evaluation of the seismic damage model.This method calculates the probability of various kinds of damage under various levels of destructive conditions by comprehensive analysis of current conditions and experimental data.The actual damage condition during an earthquake should correspond to the calculated condition with the largest probability.This method was verified by studying two ancient wooden buildings with different kinds of structural damage incurred during the Wenchuan Earthquake.As a result,the rationale and validity of the model were demonstrated.The model could be used to accurately predict the seismic damage to the ancient wooden building and provide theoretical information for the strengthening of ancient buildings to minimize the damage during future earthquakes.

关 键 词：木构古建筑 地震 评价方法 

分 类 号：K879.1[历史地理—考古学及博物馆学] P315.2[历史地理—历史学]