Jianzhu Gangjiegou Jinzhan, 2017 风吸力下冷弯薄壁檩条受力复杂,准确计算其承载性能较困难,中外相关规范的计算规定不尽相同。全面总结了GB 50018、CECS 102、EN 1993-1-3、AISI S100及AS/NZS 4600等规范针对风吸力下冷弯薄壁檩条承载性能的相关设计规定,重点分析了各规范采用的设计方法、计算模型及对屋面系统约束效应的考虑存在的差异,并比较了18组常用C形和Z形截面檩条的计算结果。对比表明,对于风吸力下锁螺钉屋面系统中檩条的稳定承载力,不设拉条时,GB5 0018因未考虑屋面系统的约束效应,计算结果过于保守,
栾蔚, 李元齐
doaj
Jianzhu Gangjiegou Jinzhan预应力撑杆构件造型优美、省材高效，但由于其柔度较大，易产生多个屈曲模态交互耦合即“交互屈曲”模式的破坏，且交互屈曲对其极限承载力、屈曲性能影响显著。研究了交互屈曲对预应力对称、不对称撑杆构件轴压、压弯作用下的屈曲性能、极限承载力影响，并据此采用基于回归算法的人工神经网络建立了其极限承载力估计模型。研究结果表明，对于预应力撑杆构件，模态交互易造成不稳定后屈曲，且对其极限承载力有显著的削弱效应；该削弱效应是否产生影响由结构几何参数与参与交互的模态屈曲荷载决定，其削弱程度受结构撑杆不对称性、预应力水平影响 ...
毋凯冬, 李国强, 常好诵, 邢哲
doaj
[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLing Y +6 more
europepmc +1 more source
[Initial exploration of the relationship between homeostatic occlusion and long-term dental implant stability]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiChen J, Wu L.
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Jianzhu Gangjiegou Jinzhan为解决圆形隧道电缆支架存在安装困难、形式多样等问题，提出了一种新型的装配式可调电缆支架型式，并对该新型支架的承载力特性及设计方法展开研究。该支架可实现支架角度的精细化调整，使支架适用于圆形隧道不同角度支撑面，相比于传统的电缆支架，新型装配式可调电缆支架构造简单、连接方便、施工精度高。建立可调电缆支架的有限元模型，在与试验结果对比验证的基础上，对支架变形特点、典型部位应力发展、承载力特性及其关键控制参数展开数值模拟；基于支架的受力特点，提出该支架的承载力理论计算模型 ...
曾二贤 +5 more
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[Finite element analysis of tibial and femoral resection configurations on varus alignment in total knee arthroplasty]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiang C +8 more
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[Current status and future directions of stability reconstruction following spinal tumor resection]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhou J, Dong J.
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[Application of soft tissue balance combined with medial displacement calcaneal osteotomy for progressive collapsing foot deformity]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYe G +5 more
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[Effect of different bone grafting methods and internal fixation on mechanical stability of Schatzker type <b>Ⅱ</b> tibial plateau fracture]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiWang Z +7 more
europepmc +1 more source