基于价值认知的带隔扇木框架位移角的研究

RESEARCH ON DRIFT ANGLES ON WOODEN FRAMES WITH PARTITION BOARD BASED ON VALUE RECOGNITION

位移角作为结构抗震性能水准的评价指标之一,被工程界广泛采用。为研究带隔扇木框架最大位移角与抗震性能等级之间的关系,参照清工部《工程做法则例》制作3组1∶2的缩尺模型并进行拟静力试验,得到水平往复荷载下带隔扇木框架的破坏特征及力学性能。通过对试验数据和有限元数值模拟结果的分析,在剖析隔扇构成及其价值赋存形式的基础上,结合非结构构件的抗震性能等级划分,综合考虑文物价值和构件损坏程度对隔扇的抗震性能影响,给出带隔扇木框架在不同抗震性能水平下的位移角参考限值。

As one of the evaluation indexes of structural seismic performance level,displacement angle has been widely applied in specifications at home and abroad.In order to study the relationship between maximum displacement angle and the seismic performance level about wooden frame with partition board,three groups of 1∶2 scale models were fabricated according to“Engineering Practice Rule”by the Ministry of Work in the Qing dynasty,and quasi-static tests were carried out.The failure characteristics and mechanical properties of wooden frame with partition board under horizontal reciprocating load were obtained.According to the data obtained by ABAQUS finite element simulation,based on the analysis of the composition of the partition board and its value occurrence form,the seismic performance level of the non-structural member was combined.Considering the influence of cultural relic value and component damage degree on the seismic performance of the partition board,the displacement angle reference limit of the wooden frame with partition at different seismic performance levels was given.