Jianzhu Gangjiegou Jinzhan本文应用ABAQUS软件建立了1层1跨螺栓连接方钢管混凝土柱-钢梁组合框架结构的三维精细有限元模型来进行拟静力分析，螺杆、螺母等细小构件都采用实体建模。模型充分考虑了钢管对核心混凝土的约束作用、螺杆与螺母的预紧力作用以及螺栓与T形件、钢管、钢梁的摩擦接触作用，模型分析的破坏形态、荷载-位移滞回曲线、刚度退化-位移曲线等计算结果与已有拟静力试验结果符合较好。在此基础上，进一步分析了组合框架结构的螺栓滑移情况、柱轴压比、钢管横向变形系数、核心混凝土应力-应变曲线、结构损伤、塑性耗能分配机制。结果表明 ...
罗靓, 晏宇翔, 吕辉, 邵炼
doaj
Jianzhu Gangjiegou Jinzhan对16个方钢管超轻混凝土短柱和8个空钢管短柱进行了轴压试验，以超轻混凝土强度和含钢率为变化参数，研究方钢管超轻混凝土短柱的破坏形态和受力性能。结果表明，随着超轻混凝土强度的降低，钢管对核心混凝土的约束效应越强；随着含钢率的增加，构件的承载力和变形能力提高，但当含钢率高于0.25时，超轻混凝土的存在对构件的承载力和变形能力已基本没有影响。基于叠加理论，提出了适用于方钢管超轻混凝土短柱承载力的计算公式。
刘志轩, 曲慧, 陈琦, 张威
doaj
[Biomechanical analysis of a novel bridging plate for treating Rockwood III acromioclavicular joint dislocation]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoChen Y, Zhang G, Li S, Luo N, Zhang Y.
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[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiCui C, Wang T, Zhang Y, Zheng W, Xu G.
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Jianzhu Gangjiegou Jinzhan为研究组合楼板作为承载构件时在压型钢板局部削弱后的受弯性能，对压型钢板的竖直与水平方向进行不同程度的弱化，并在弱化后对钢板进行无侧向约束的受弯试验，研究压型钢板削弱后的受弯性能及其破坏形式。试验结果表明：在均布荷载作用下，各组压型钢板的破坏均以跨中受弯屈曲破坏为主；水平方向洞口削弱了钢板上翼缘承载力，当水平洞口半径为20 mm时，试件抗弯承载力降低约15%；竖向洞口会阻碍钢板上、下翼缘应力的传递，当竖向洞口半径为25 mm时，试件抗弯承载力降低约10%。通过对比可知 ...
徐强 +4 more
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[Biomechanical advantages of personalized Y-shaped plates in treatment of distal humeral intra-articular fractures]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYu H +5 more
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[Research on simulation and optimal design of a miniature magnetorheological fluid damper used in wearable rehabilitation training system]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022 Xie S, Yi W, Yang M, Chen Y.
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[Effectiveness of composite loop plate around coracoid process for reconstructing coracoclavicular ligament in treatment of Rockwood type <b>Ⅲ</b> acute acromioclavicular joint dislocations]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiHe H +5 more
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[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]
Se PuXue WY +8 more
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[Biomechanical analysis of Magic screw fixation for acetabular posterior column fracture]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022 Zhang H +6 more
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