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单轴对称截面轴压构件弯扭失稳换算长细比的一般计算式

Jianzhu Gangjiegou Jinzhan
单轴对称截面轴压构件弯扭失稳的换算长细比是计算其极限荷载的重要参数。基于单轴对称截面轴压构件弯扭失稳的平衡微分方程，采用Galerkin法推导了4种边界约束条件弯扭失稳临界荷载的一元二次方程，并进一步得到了基于荷载比、双长细比的弯扭失稳换算长细比理论式。基于理论式，分别对比了我国现行标准GB 50017—2017中双角钢组合T形截面轴压构件扭转失稳、弯扭失稳的换算长细比，揭示了其中存在的问题；提出了新的双角钢组合T形截面轴压构件扭转失稳、弯扭失稳换算长细比的计算式，并与理论式的计算结果进行对比。结果表明，
刘占科, 徐应鲜, 周绪红, 常洲旗, 马张永   +4 more
doaj  

[Prediction of hemodynamic parameters in pathological arterial vessels based on physics-informed neural networks]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ji M, Sang J, Sun L, Zhang C, Zhong X, Li Y.   +5 more
europepmc   +1 more source

[Biomechanical research of anterior cruciate ligament fixation by tibial interfacial screw combined with bone tunnel crossing technology]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021
Sun R, Zhuang L, Duan M, Liu X, Zhang H.
europepmc   +1 more source

[Surgical robot-assisted submandibular gland excision through retroauricular hairline approach: three case reports]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Ma S, He J, Cao C, Wang X, Li C, Zhu G.
europepmc   +1 more source

[Effect of bioactive glass pretreatment on the durability of dentin bonding interface]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2020
Li QJ, Gong WY, Dong YM.
europepmc   +1 more source

[Finite element analysis of tibial fracture risk following lateral unicompartmental knee arthroplasty under varying bone conditions]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li Z, Huang T, Xu Y, Sun X.
europepmc   +1 more source

[Research progress on three-dimensional finite element analysis for fixed implant restoration of edentulous jaw]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lan Y, Su B.
europepmc   +1 more source

[Three-dimensional finite element analysis of the cantilever fixed bridge restoration for mandibular central incisors supported by narrow-diameter implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhou X, Gong Y, Peng W, Fu G.
europepmc   +1 more source

[Morphological characteristics and clinical significance of os subfibulare in patients with chronic ankle instability]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Duan X, Wang J, Chen J, Li Z, Zhao Y, Zhou X, Zhang L.   +6 more
europepmc   +1 more source

[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 Zhi
Ling Y, Han J, Zhang Z, Peng Y, Zhang J, Chen Z, Jin Z.   +6 more
europepmc   +1 more source