冬季施工环境下,早龄期混凝土在模板爬升过程中部分区域易暴露于低温环境中,面临冻害风险,这可能会影响爬模连接节点的抗剪性能,从而影响施工的安全性。为研究低温条件下早龄期混凝土爬模连接节点的抗剪性能,文中设计了6个试件并对其进行了推出试验,还基于低温下混凝土与钢材的本构关系,采用ABAQUS有限元软件建立了爬模连接件的有限元模型。研究参数包括温度、混凝土龄期、抗剪螺栓直径与强度。基于试验及数值模拟结果,分析试件的破坏模式、荷载-滑移曲线、荷载-应变曲线等。结果表明:低温下试件发生了脆性破坏 ...
周伟善 +5 more
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Sun Y, Xu X, Zhuo X, Cai H, Wang Y.
europepmc +1 more source
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Zhou J, Dong J.
europepmc +1 more source
[Effect of mechanical stimuli on physicochemical properties of joint fluid in osteoarthritis]. [PDF]
Yao H, Tian A, Ma J, Ma X.
europepmc +1 more source
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Hu M +6 more
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Wang Z +7 more
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Chen L, Zhu X, Zhou J, Li J, Zhao L.
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Cui J +6 more
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Hu Y, Lyu W, Xia W, Liu Y.
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Ma S, Wu W, Liu H, Liu M, Xing F.
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