地震研究

基于有限元分析的大理、丽江地区穿斗式木结构山架抗震性能

叶阳^1,2,杨健强^1,2,明小娜^1,2,周洋³,王杰^1,2,刘绍昌^1,2,高扬¹

(1.云南省地震局,云南昆明 650224; 2.中国地震局昆明地震预报研究所,云南昆明 650224; 3.德宏州防震减灾局,云南芒市 678400)

Research on Seismic Performance of the Gable-shaped Frame of the Column-and-tie Timber Structure in Dali and Lijiang Based on FEA

YE Yang^1,2,YANG Jianqiang^1,2,MING Xiaona^1,2,ZHOU Yang³,WANG Jie^1,2,LIU Shaochang^1,2,GAO Yang¹

(1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China；2.Kunming Institute of Prediction,China Earthquake Administration,Kunming 650224,Yunnan,China；3.Dehong Earthquake Agency,Mangshi 678400,Yunnan,China)

Keywords：column-and-tie timber structure; aseismic performance; Dali; Lijiang; the finite element analysis

DOI: 10.20015/j.cnki.ISSN1000-0666.2025.0011

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参考文献

通过实地调查,分析了大理、丽江地区木结构榫卯结构的配置情况以及二者结构上的差异。为了研究二者的抗震性能与受力特性,通过有限元软件对两个地区的典型穿斗式木结构山架进行低周往复荷载模拟。结果表明:丽江地区穿斗式木结构山架抗震性能优于大理地区,两地木结构的薄弱点均在横向构件与纵向构件的榫卯节点处,榫卯节点的薄弱点位于榫头末端,二者的抗侧刚度均不高,易在水平荷载下倾斜。

Based on field investigation of the residential houses in Dali and Lijiang of Yunnan province,we analyze the difference of the tenon structure of the column-and-tie timber structures between the two places.In order to study the seismic performance and stress characteristics of the timber structure in the two places,we use the finite element analysis software to simulate the low-cycle reciprocating load to the gable-shaped frame of the column-and-tie timber structure in the two places.The results show that the gable-shaped frame in Lijiang has better seismic performance than that in Dali.The tenon joint of the transverse member and the longitudinal member is the weak part of the timber structure in both Dali and Lijiang,the end tenon is the weak part of the tenon joint.The gable-shaped frame in both Dali and Lijiang have low lateral stiffness,and they are apt to tilt under the lateral load.

引言
1 大理、丽江地区新建穿斗式木结构山架的区别
2 有限元建模
3 有限元结果分析
4 结论

图1 大理(a)、丽江(b)地区穿斗式木结构3D图<br/>Fig.1 Three-dimensional diagram of the column-and-tie timber structure in Dali(a)and Lijiang(b)region

图1 大理(a)、丽江(b)地区穿斗式木结构3D图
Fig.1 Three-dimensional diagram of the column-and-tie timber structure in Dali(a)and Lijiang(b)region

图2 大理(a)、丽江(b)地区穿斗式木结构山架<br/>Fig.2 The column-and-tie timber structure in Dali(a)and Lijiang(b)region

图2 大理(a)、丽江(b)地区穿斗式木结构山架
Fig.2 The column-and-tie timber structure in Dali(a)and Lijiang(b)region

表1 榫卯连接表<br/>Tab.1 Details of the mortise and tenon connection

表1 榫卯连接表
Tab.1 Details of the mortise and tenon connection

图3 木框架构件尺寸<br/>Fig.3 Dimensions of the parts of the timber frame

图3 木框架构件尺寸
Fig.3 Dimensions of the parts of the timber frame

表2 杉木材料弹性常数<br/>Tab.2 Elastic constants of China fir

表2 杉木材料弹性常数
Tab.2 Elastic constants of China fir

表3 木结构山架竖向荷载<br/>Tab.3 Vertical loading of the timber frame

表3 木结构山架竖向荷载
Tab.3 Vertical loading of the timber frame

图4 加载简图<br/>Fig.4 Schematic diagram of loading

图4 加载简图
Fig.4 Schematic diagram of loading

图5 加载示意图<br/>Fig.5 Schematic diagram of displacement loading

图5 加载示意图
Fig.5 Schematic diagram of displacement loading

图6 丽江(a)、大理(b)地区木结构山架应力云图<br/>Fig.6 Stress nephogram of the timber frame in Dali(a)and Lijiang(b)region

图6 丽江(a)、大理(b)地区木结构山架应力云图
Fig.6 Stress nephogram of the timber frame in Dali(a)and Lijiang(b)region

图7 云南地区和四川会里历史地震中穿斗式木结构山架震害<br/>Fig.7 Damage to timber structures in the earthquake in Yunnan and Sichuan region

图7 云南地区和四川会里历史地震中穿斗式木结构山架震害
Fig.7 Damage to timber structures in the earthquake in Yunnan and Sichuan region

图8 丽江地区穿斗式木结构山架节点3的应力云图<br/>Fig.8 Stress distribution contours of Joint 3 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图8 丽江地区穿斗式木结构山架节点3的应力云图
Fig.8 Stress distribution contours of Joint 3 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图9 丽江地区穿斗式木结构山架节点8的应力云图<br/>Fig.9 Stress distribution contours of Joint 8 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图9 丽江地区穿斗式木结构山架节点8的应力云图
Fig.9 Stress distribution contours of Joint 8 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图10 丽江地区穿斗式木结构山架节点10的应力云图<br/>Fig.10 Stress distribution contours of Joint 10 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图10 丽江地区穿斗式木结构山架节点10的应力云图
Fig.10 Stress distribution contours of Joint 10 of the gable-shaped frame of the column-and-tie timber structure in Lijiang region

图11 大理地区穿斗式木结构山架节点2的应力云图<br/>Fig.11 Stress distribution contours of Joint 2 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图11 大理地区穿斗式木结构山架节点2的应力云图
Fig.11 Stress distribution contours of Joint 2 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图12 大理地区穿斗式木结构山架节点6的应力云图<br/>Fig.12 Stress distribution contours of Joint 6 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图12 大理地区穿斗式木结构山架节点6的应力云图
Fig.12 Stress distribution contours of Joint 6 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图13 大理地区穿斗式木结构山架节点8的应力云图<br/>Fig.13 Stress distribution contours of Joint 8 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图13 大理地区穿斗式木结构山架节点8的应力云图
Fig.13 Stress distribution contours of Joint 8 of the gable-shaped frame of the column-and-tie timber structure in Dali region

图14 大理(a)、丽江(b)地区穿斗式木结构山架滞回曲线<br/>Fig.14 Load-displacement hysteresis curve of the gable-shaped frame of the column-and-tie timber structure in Lijiang(a)and Dali(b)region

图14 大理(a)、丽江(b)地区穿斗式木结构山架滞回曲线
Fig.14 Load-displacement hysteresis curve of the gable-shaped frame of the column-and-tie timber structure in Lijiang(a)and Dali(b)region