木拱廊桥三维有限元建模与抗震性能分析  

作　　者：夏梦君 李利平[1] 高子坤 李旭平[1] 李江烽 叶雨儿 

机构地区：[1]丽水学院工学院,浙江丽水323000

出　　处：《科技创新与应用》2022年第31期73-77,共5页Technology Innovation and Application

基　　金：国家级大学生创新创业训练计划项目(202010352016)。

摘　　要：为探究木拱廊桥拱架部分的内力分布情况和在地震作用下的抗震性能情况,以丽水庆元县某典型木拱廊桥为研究对象,建立该典型木拱廊桥拱架部分的有限元模型,进行常遇地震下的动力时程响应分析。结果表明,木拱廊桥拱架内力分布均匀,其力的传递性能好,结构合理;木拱廊桥拱架抗震性能良好,榫卯节点具有优良的吸能效果;木拱廊桥拱架在地震作用下牛头处损伤最严重,特别是三节苗中间苗木的牛头处,维修时需予以注意。In order to explore the internal force distribution and seismic performance of the arch part of the wooden arch lounge bridge, a typical wooden arch lounge bridge was taken as the research object in Qingyuan County, Lishui City,and the finite element model of the arch part of the typical wooden arch lounge bridge was established to analyze the dynamic time history response under frequent earthquakes. The results showed that the internal force distribution of the wooden arch was uniform, its force transmission performance was well, and the structure was reasonable;the seismic performance of wooden arch lounge bridge arch was well, and the mortise tenon joint had excellent energy absorption effect;the damage of wooden arch lounge bridge arch was the most serious under the earthquake, especially at the head of the three section seedlings, which should be paid attention to during maintenance.

关 键 词：木拱廊桥 拱架 内力分析 抗震性能 动力时程分析 

分 类 号：P315.9[天文地球—地震学]