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Issue:
Research on Frame's Eccentric Joint Under Low Frequency Repeated Load
Author(s):
YU Qiong
,
LI Siming
Pages:
448
-
454
Year:
2006
Issue:
4
Journal:
JOURNAL OF TONGJI UNIVERSITY(NATURAL SCIENCE)
Keyword:
框架
;
偏心节点
;
扭矩
;
节点有效截面宽度
;
剪切角
;
Abstract:
通过8个框架节点的试验,研究了节点的受力性能:偏心节点偏心一侧核心区的开裂、通裂荷载比普通节点低,远离偏心一侧的开裂、通裂荷载比普通节点高;当节点都为梁端受弯破坏或都为核心区受剪破坏时,偏心节点的耗能能力小于非偏心节点;由于核心区箍筋及混凝土强度得到充分利用,偏心节点如果既发生梁端受弯破坏又发生核心区剪切破坏,则其耗能能力好于仅发生梁端受弯破坏的非偏心对比节点.推导了引入偏心距的节点有效宽度计算公式,并验证其在偏心节点的开裂、通裂剪力计算中的可行性.
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