太昊陵显仁殿木构架承重体系结构性能分析  

Study on structural properties of timber frame load-bearing system of the Xianren temple in Taihao mausoleum

作　　者：童丽萍[1] 邬伟进 

机构地区：[1]郑州大学土木工程学院,河南郑州450001

出　　处：《广西大学学报（自然科学版）》2016年第1期36-43,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家"十二五"科技支撑计划课题(2013BAL01B04)

摘　　要：为了给显仁殿的修缮提供科学依据,建立了显仁殿整体有限元数值模型,对其进行了正常使用条件下的结构性能分析。结果表明:木结构强度富余较大,结构处于安全状态;屋盖檐部因出挑距离较大而产生变形,最大值11.24 mm发生在明间飞椽末端;明间屋盖下金檩、檐檩跨中变形较大,引起屋面局部下沉,是结构薄弱部位;桃尖梁、抱头梁受集中荷载作用,在跨中产生较大弯矩;五架梁布置合理,弯矩分配均匀;木构架榫卯节点连接处和重檐金柱上半部分受力复杂,是木构架承重关键部位,易因木材槽朽、开裂等残损引起构件承载力不足,会直接影响结构的安全性能,需要采取相应的加固措施。所得结论将为显仁殿的维修加固提供科学依据,同时可为同类木结构的修复提供参考。In order to provide scientific evidence for the repair of Xianren temple,a finite element numerical model of Xianren temple was established to analyze the structural properties. The results indicated that the timber structure of Xianren temple is in a safe state,whose strength surplus is large. Because of the large overhangs,the eaves have deformation,whose maximum value is11. 24 mm at the rafter of the mid-hall. The lower golden purlin and eaves purlin under the roof in the mid-hall have large displacement,which causes local settlement of the roof,and they are weak parts of the structure. The midspan of the peach-tip beam and baotou beam have large bending moment under a concentrated load. The five-frame beams are arranged reasonably,and the bending moment distributes uniformly. The mortise-tenon joints of wood frame and the upper part of outer hypostyle column bear complex forces,and they are the key parts of the timber frame. The groove rot and cracking will cause insufficient on bearing capacity,which affects the safety performance of the structure directly,and corresponding reinforcement measures need to be taken. The conclusion willprovide scientific basis for the maintenance and reinforcement of the Xianren temple,and it can provide reference for the repair of similar timber structure.

关 键 词：古建筑 木结构 结构性能 有限元分析 静力分析 

分 类 号：TU366.2[建筑科学—结构工程]