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低温下早龄期混凝土爬模连接件受剪性能研究

open access: yesJianzhu Gangjiegou Jinzhan
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
doaj  

[Research on type 2 diabetes prediction algorithm based on photoplethysmography]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Hu M   +6 more
europepmc   +1 more source

[Effectiveness of staged therapy using external fixation frame for infectious nonunion near knee joint]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Z   +7 more
europepmc   +1 more source

[Overwork damages myocardial energy metabolism homeostasis in mice]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Cui J   +6 more
europepmc   +1 more source

[Application and research progress of metal-organic framework materials in skin repair]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ma S, Wu W, Liu H, Liu M, Xing F.
europepmc   +1 more source

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