Jianzhu Gangjiegou Jinzhan模块间节点的抗震性能对结构整体安全至关重要。文中提出了一种模块间焊接连接节点（简称WIMJ），通过对3个该类型节点开展往复加载试验，研究了外套筒高度和厚度对节点破坏模式、应力分布、延性耗能等抗震性能的影响，并对节点的刚性特征进行了评估。结果表明：WIMJ的破坏模式为梁端受弯破坏，破坏位置主要集中在梁翼缘与柱的焊接连接处；节点的滞回曲线较为饱满，受力过程依次经历初始滑移、弹性变形、弹塑性变形、破坏四个阶段；其延性系数介于0.75~2.03之间，等效黏滞阻尼系数可达0.15，强度退化系数介于0.85~1 ...
宋海涛 +7 more
doaj
Jianzhu Gangjiegou Jinzhan针对目前模块建筑钢结构中模块单元梁之间无法协同受力的情况，本文提出一种无需破坏围护结构的自锁式梁间侧向连接节点，围绕采用该节点形式连接的模块梁，采用数值模拟方法对构件静力承载性能进行研究，探究构件的传力机理和破坏模式，分析了连接数目、锁扣数目、梁截面高度与跨度比值、连接位置这四个关键参数的影响规律。结果表明：自锁式协同受力模块梁具有较好的承载性能，包括较高的极限承载力和较强的变形能力，破坏模式主要为模块梁及上、下连接件的材料接近强度极限，从而失去承载能力。相较于现有模块梁 ...
安琦 +5 more
doaj
Jianzhu Gangjiegou Jinzhan模块化钢结构建筑凭借工业化程度高、施工效率快等优势，已成为推动绿色低碳建筑发展的重要方向。模块间连接对模块化建筑的力学性能具有关键影响，然而当前针对模块间连接受剪性能及优化设计方法的研究仍较为缺陷。文中基于课题组前期完成的全装配可吊装节点（fully prefabricated liftable connection， FPLC）受剪性能试验研究，建立了精细化有限元模型并开展了参数分析，从而得到了包含1 000组不同参数的FPLC受剪性能数据库。运用了六种常用机器学习算法对FPLC受剪性能进行评估 ...
邓恩峰 +5 more
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[Image classification of osteoarthritis based on improved shifted windows transformer and graph convolutional networks]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiJiang L, Cao H, Ma Z.
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[Short-term effectiveness study and finite element analysis of high tibial osteotomy for knee varus with medial meniscus posterior root tear in middle aged and older populations]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiTao Y, Liu W, Wang Y, Fan J.
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Nan Fang Yi Ke Da Xue Xue BaoQu M, Fu R.
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[Review of application of U-Net and Transformer in colon polyp image segmentation]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiShi Y, Sun S, Liu J, Ma J, Li M.
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[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHan G, Sun Z, Tang X.
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[Clinical symptoms and cone beam computed tomography imaging analysis of patients with temporomandibular joint osteoarthritis with chewing side preference before and after treatment of stabilization splint]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLi X +7 more
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