Quantitative evaluation of fatigue life for connection with rebar joint between precast PC slabs under wheel-type loads
Quantitative evaluation of fatigue life for connection with rebar joint between precast PC slabs under wheel-type loads
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轮式荷载作用下预制PC板间钢筋接头连接疲劳寿命的定量评价
DOI：
10.11532/structcivil.66a.774
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
竹田 京子，佐藤 靖彦
中科院分区：
文献类型：
--
作者：
竹田京子;佐藤靖彦;竹田 京子，佐藤 靖彦
本研究主要探讨钢筋混凝土预制板节点的受力特性与疲劳寿命。通过对节点钢筋带头部锚的梁模型进行三维非线性有限元分析，发现通过沿配筋方向拉节点钢筋，在主筋周围引入压应力，提高了构件的抗剪承载力。最后，在本文提出的钢筋混凝土板和预应力混凝土板疲劳寿命预测方法中，考虑约束效应，可以对钢筋节点的疲劳寿命进行预测。
In this study, mechanical characteristics and fatigue life of precast concrete slab connection with rebar joint is examined. Authors conducted 3D nonlinear finite element analyses of beam models which have joint reinforcing bars with head anchor, and it was found that shear capacity of the member increases because the compression stress is introduced around main reinforcing bars by pulling joint reinforcing bars in direction of distributing bars. Finally, fatigue life of the connection with rebar joint can be predicted by considering the confinement effect in the fatigue life prediction method for RC and PC slabs proposed by authors.