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Jianzhu Gangjiegou Jinzhan基于收集的189个不锈钢管混凝土构件的轴压试验数据建立了机器学习数据库，采用6种机器学习模型（随机森林、决策树、支持向量机、多层感知器、极端梯度提升和自适应提升）分别对圆形和方形截面不锈钢管混凝土构件进行了轴压承载力预测研究，同时分析了不同参数对机器学习模型预测精度的影响。研究结果表明，上述6种机器学习预测模型中预测精度最高的是极端梯度提升模型，对于圆形和方形截面构件所有参数的预测，该模型的均方根误差分别为0.043 5和0.018 8，且预测值与试验值之比的变异系数分别为0.127和0.166 ...
余琪瑶, 廖飞宇, 陆国兵
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Jianzhu Gangjiegou Jinzhan, 2012 钢管混凝土具有诸多优点,使其得到广泛的应用和研究。但也有缺点,如钢材的耐腐蚀性差,导致其后期维护费用较大。由于高强钢可以有效地减小构件的尺寸和结构的重量,不锈钢具有良好的耐腐蚀性能,铝合金具有外表美观、防腐蚀等优点,因此在上述3种金属管中填充混凝土形成新型金属管混凝土结构,具有广泛的应用前景。主要研究了3种金属管混凝土短柱的强度计算公式,并通过有限元模拟验证了公式的正确性。
查晓雄, 宫永丽
doaj
[Efficient enrichment of pesticides from environmental water samples by cobalt-nickel double metal hydroxide nanocage/multiwalled carbon nanotube composites]. [PDF]
Se Pu, 2022 Wang X +5 more
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Jianzhu Gangjiegou Jinzhan由于钢板具有优越的抗剪性能，故其被广泛地应用于建筑结构以及船舶海洋工程中。在实际工程中，由于使用中的需要或者锈蚀等原因，钢板开孔的现象屡见不鲜。开孔会减小钢板的有效抗剪面积进而降低抗剪承载能力。本文开展了矩形孔和圆形孔两种开孔类型对钢板抗剪承载力影响的研究。通过试验研究了开孔位置、开孔率对钢板抗剪承载力的影响。结果表明：开孔位置对钢板抗剪承载力有显著影响；抗剪承载力的降低程度不能简单通过开孔率进行评估。在此基础上，通过理论和试验验证了数值模型的可靠性 ...
杨斌, 赵炳震, 杜颜胜, 赵中伟
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[Design and analysis of shoulder type exoskeleton stretcher for individual soldier]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Mao Y +5 more
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[Research advance of solid-phase microextraction based on covalent organic framework materials]. [PDF]
Se PuCheng YC +8 more
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[Application progress of implantation in surgical treatment of cervical tuberculosis]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022 Wang X, Li M, Zhu Y, Zhu Q.
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[Research progress in etiology and clinical diagnosis and treatment of scaphotrapeziotrapezoid osteoarthritis]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023 Zhang B, Cai X, Wang B, Zhang Y, Xu Y.
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[Latest research progress of rare earth-magnesium alloys in orthopedics]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoSun Z, Zuo K, Zhu X, Yue H, Gao Z.
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Intentional replantation for the retreatment of mandibular second molar: a case report. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2023 Cai M, Xiang S, Xie C, Ouyang C, Tong F.
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