%0 Journal Article
%T 古建筑木结构偷心造和计心造斗力学性能数值分析<br>Numerical analysis of mechanical behavior of Tou-xin-zao and Ji-xin-zao tou-kung in Chinese ancient timber structures
%A 潘毅
%A 袁双
%A 王慧琴
%A 王晓玥
%A 林拥军
%J 土木建筑与环境工程
%D 2017
%R 10.11835/j.issn.1674-4764.2017.05.002
%X 古建筑木结构的斗栱做法有偷心造和计心造两种基本形式，为研究这两种斗栱力学性能的差异，以饶益寺大佛殿的偷心造与计心造斗栱为研究对象，建立偷心造与计心造斗栱的有限元模型，用某斗栱的试验数据验证了有限元模型的正确性，并分析这两种斗栱在竖向荷载和水平低周反复荷载作用下的力学性能。研究结果表明：在竖向荷载作用下，由于计心造斗栱的横栱比偷心造斗栱多，其竖向荷载位移曲线有一个明显的强化阶段，导致其极限承载力比偷心造斗栱大29.9%；在水平低周反复荷载作用下，两种斗栱的滞回曲线都比较饱满，均表现出较好的耗能能力，但二者相差不大。<br>Tou-xin-zao and ji-xin-zao are the two basic forms of tou-kung in Chinese ancient timber structures. To study the mechanical performance of the two types of tou-kung, finite element models are established for the typical tou-xin-zao and ji-xin-zao tou-kung in Raoyi Temple. The models are verified with previous experimental results and then subjected to vertical loading and horizontal low frequency cyclic loading, respectively. The finite element analysis shows that under vertical loading, the ji-xin-zao tou-kung experiences a strength hardening stage, with the ultimate bearing capacity 29.9% higher than that of tou-xin-zao tou-kung. It was found that the additional structural members (heng-gong) in ji-xin-zao tou-kung contributed to the higher bearing capacity. Under horizontal cyclic loading, the two tou-kung types behave equally well in terms of energy dissipation performance and both exhibite relatively plump hysteresis loops.
%K 古建筑 木结构 偷心造 计心造 斗栱&lt
%K br&gt
%K ancient buildings timber structures tou-xin-zao ji-xin-zao tou-kung
%U http://qks.cqu.edu.cn/cqdxxbcn/ch/reader/view_abstract.aspx?file_no=20170502&flag=1