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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 a scientific basis for the Ren Ren Temple repair, the overall finite element numerical model of Ren Ren Hall was established, and its structural performance under normal conditions was analyzed. The results show that the strength of the wood structure is relatively large and the structure is in a safe state. The eaves of the roof are distorted due to the larger pick-out distance, with the maximum 11.24 mm occurring at the end of the rafters in the Ming Dynasty. Large deformation in the mid-span leads to local roof subsidence, which is a weak part of the structure. Peach-beam and bow-beam are subject to concentrated loads and have large bending moments in the span. Five beams are arranged rationally with uniform distribution of bending moment. Structural joints tenon and dorsal joints and double-eave golden pillar on the upper part of the force is complex, is the key parts of wood frame load-bearing, easy due to timber trough, cracking and other damage caused by insufficient component bearing capacity, will directly affect the safety performance of the structure, the need to take The corresponding reinforcement measures. The conclusions obtained will provide a scientific basis for the repair and reinforcement of Xianren Hall, and provide references for the restoration of similar wood structures.