木构架古建筑的地震损伤特征与规律研究  

Study on seismic damage characteristic and law of ancient timber frame buildings

作　　者：袁建力[1] 李胜才[1] 宋拓[1] YUAN Jianli;LI Shengcai;SONG Tuo(College of Architectural Science and Engineering,Yangzhou University,Yangzhou 225009,China)

机构地区：[1]扬州大学建筑科学与工程学院,江苏扬州225009

出　　处：《地震工程与工程振动》2022年第3期22-33,共12页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金重点项目(51338001)。

摘　　要：中国木构架古建筑是世界文化遗产的重要组成部分,开展木构架古建筑地震损伤规律研究,制订相应的防震减灾规划,是文化遗产保护的重要举措。文中依据唐山地震、汶川地震和芦山地震中木构架古建筑震害资料,采用分类归纳和统计分析方法,核定地震烈度、震害程度等关键指标,研究其地震损伤特征与规律。研究表明,木构架古建筑的震损程度与地震烈度有直接的对应关系,且与结构的刚度分布、结合构造和维护状况密切相关,其特征表现为低烈度下的易损性、高烈度下的抗倒性和地基失效的毁坏性。文中提出了基于台基、墙体、屋顶和木构架损伤状况的木构架古建筑的震害程度评定方法,确定了木构架古建筑在不同地震烈度下的损伤规律,讨论了相应的抗震对策,并按照中国现行抗震设防标准,确定了震害程度与地震烈度的关系,为防震减灾规划提供了基本依据。Ancient Chinese timber frame buildings are an important part of the world cultural heritage.It is an important measure for the protection of cultural heritage to study the seismic damage law of ancient timber frame buildings and formulate the corresponding earthquake protection and disaster reduction plan.Based on the seismic damage data of ancient timber frame buildings in Tangshan earthquake,Wenchuan earthquake and Lushan earthquake,this paper verified the seismic intensity and damage degree and studied the characteristics and rules of seismic damage by classification induction and statistical analysis method.The results show that the seismic damage degree of ancient timber frame buildings is directly related to seismic intensity,and is closely related to the distribution of structural stiffness,joint construction and maintenance status,and the characteristics are the vulnerability under low intensity,lodging resistance under high intensity and destruction of foundation failure.This paper presented a method for assessing the seismic damage degree of ancient timber frame buildings based on the damage status of foundation,wall,roof and timber frame,determined the damage rule of ancient timber frame buildings under different seismic intensity,and discussed the corresponding seismic countermeasures.The relationship between seismic damage degree and seismic intensity is confirmed according to the current standard of earthquake fortification in China,which will provide the fundamental basis for the earthquake protection and disaster reduction planning.

关 键 词：木构架古建筑 地震烈度 地震损伤规律 防灾规划 

分 类 号：TU36[建筑科学—结构工程]