明代砖砌无梁殿——开元寺无梁殿的动力特性及抗震性能研究  

Dynamic characteristics and seismic performance of the brick-vaulthall of Kaiyuan Temple in the Ming Dynasty

作　　者：马宇坤 淳庆[1] 吴远德 MA Yukun;CHUN Qing;WU Yuande(School of Architecture,Southeast University,Nanjing 210096,Jiangsu,China)

机构地区：[1]东南大学建筑学院,江苏南京210096

出　　处：《地震工程学报》2023年第4期852-861,共10页China Earthquake Engineering Journal

基　　金：国家自然科学基金面上项目(52078111)。

摘　　要：为研究我国明代砖砌无梁殿在地震作用下的受力性能和薄弱环节,选取苏州开元寺无梁殿这一典型的明代砖砌无梁殿为研究对象,建立其Rhino三维模型,并导入ANSYS Workbench生成有限元模型,通过有限元分析计算得到该无梁殿的固有频率、模态振型,以及地震作用下的位移和应力响应。结果表明:开元寺无梁殿的结构布置对称性较高,抗扭刚度较大;竖向地震对结构的影响不大,水平地震中影响最大的为进深方向的地震作用;从应力角度来看,对砖砌无梁殿采用反应谱分析是偏安全的,从位移角度来看,对砖砌无梁殿采用时程分析是偏安全的;开元寺无梁殿在地震作用下容易产生破坏的位置为上下两层门窗拱券的脚部和顶部、上下两层面阔向拱券的脚部和顶部、上下两层进深向拱券的脚部和顶部、山墙端部,以及屋顶中部和端部等。A typical brick-vault hall of the Kaiyuan Temple in Suzhou City was selected as the research case for studying the mechanical properties and weak locations of the brick-vault hall heritages built during the Ming Dynasty in China under the action of earthquakes.The Rhino three-dimensional model of the brick-vault hall of the Kaiyuan Temple was established and imported into ANSYS Workbench to generate a finite element model.The natural frequency,mode shape,displacement response,and stress response of the brick-vault hall under the action of earthquakes were obtained using finite element analysis.Results show that the structure of the brick-vault hall of the Kaiyuan Temple has high symmetry and torsional stiffness.The vertical earthquake has little effect on the structure,while the seismic action in the depth direction has a considerable impact.From the perspective of stress,using the response spectrum analysis for brick-vault halls is safe,whereas using the time-history analysis for brick is safe from the perspective of displacement.The weak locations of the brick-vault hall of the Kaiyuan Temple under the action of earthquakes include the corner and top of the two layers of door and window arches,as well as passage arches in the width and depth directions,the gable end wall,and the middle and end of the roof.

关 键 词：开元寺 无梁殿 有限元 抗震性能 抗震加固 

分 类 号：TU362[建筑科学—结构工程]