Results 71 to 80 of about 685 (138)

[Finite element analysis of five internal fixation modes in treatment of Day type Ⅱcrescent fracture dislocation of pelvis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023
Pei X, Huang J, Qian S, Zhou W, Ke X, Wang G, Lei J, Liu X.   +7 more
europepmc   +1 more source

混合梁斜拉桥开口格室结合部承载性能试验研究

为明确开口格室混合梁钢混结合部的承载性能，基于在建广湛高铁东平水道混合梁斜拉桥结合部构造，设计两个开口格室结合部局部缩尺试件，开展了轴压承载力试验。分析了开口格室结合部的破坏模态、钢底板与混凝土之间的相对滑移、应变分布，对比了钢底板分别采用焊钉和槽口型开孔板连接件对承载性能的影响。结果表明：两试件的承载力约为实桥设计荷载的6.8倍。钢底板上采用焊钉的试件的承载力比采用槽口型开孔板的高约6%，两试件的破坏模态均为混凝土受压破坏，剪力连接件均未被剪断，连接件类型对结合部的承载力和破坏模态影响不显著 ...
刘玉擎, 杨欣然, 王太奇, 王淑敏, 马广   +4 more
core  

波形腹板部分包覆组合柱弱轴方向偏心受压试验研究

Jianzhu Gangjiegou Jinzhan
针对传统部分包覆组合柱（PEC柱）中腹板易变形屈曲，以及与混凝土协同作用较弱、易分离等问题，提出一种将腹板形式由平钢板改为波形钢板的波形腹板PEC柱。考虑强弱轴方向、波形腹板方向、横向系杆间距、偏心距4个关键因素，设计10个波形腹板PEC柱试件并进行偏心加载试验。试验结果表明：波形腹板PEC柱试件在偏心受压下的破坏形态基本一致，均表现为受压侧翼缘鼓曲变形和混凝土压碎失效。试件在强轴方向的承载力较弱轴方向的承载力最大增幅为61.20%，延性最大增幅为63.06 ...
王威, 包海洋, 白淙尤, 刘磊, 陈乐乐   +4 more
doaj  

不同厚度轻钢桁架轻混凝土组合墙板轴压性能研究

为研究轻钢桁架轻混凝土组合墙板轴压性能，设计了1个足尺轻钢桁架和2个足尺轻钢桁架轻混凝土组合墙板试件，进行了轴压性能试验，分析了不同轻混凝土厚度对试件破坏特征、荷载-位移曲线、轴压承载力等的影响。建立了有限元模型，进行了数值模拟，阐明了轻钢桁架轻混凝土组合墙板轴压损伤演化过程，揭示了屈服机制。研究表明：轻钢桁架轻混凝土组合墙板的破坏形态主要为轻钢立柱局部变形屈曲和轻混凝土局部压溃破坏；90 mm厚无面层和150 mm厚有面层组合墙板较轻钢桁架试件峰值承载力分别提高了65.2%和361.7 ...
徐涛, 曹万林, 李浩东, 杨兆源, 沈韦霞, 董宏英   +5 more
core  

[Research progress in biomechanics of different fixation methods for medial opening-wedge high tibial osteotomy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Shao H, Duan Q, Luo N, Wang F, Cheng L, Ying J, Zhao D.   +6 more
europepmc   +1 more source

[Biomechanical effects of three internal fixation modes on femoral subtrochanteric spiral fractures in osteoporotic patients by finite element analysis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023
An Y, Jiang D.
europepmc   +1 more source

[Biomechanical study on wing shaped titanium plate fixation of acetabular anterior column and posterior hemi-transverse fracture under multiple working conditions]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhang J, Wurikaixi Aiyiti, Lyu G, Maimaiaili Yushan, Ma Z, Ma C.   +5 more
europepmc   +1 more source

[Three-dimensional finite element analysis of exo-cortical placement of humeral calcar screw for reconstruction of medial column stability]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022
Li B, Chang S, Hu S, Du S, Xiong W.
europepmc   +1 more source

[Biomechanical study of screw implant angle in reconstruction of tibiofibular syndesmosis injury]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang L, Li M, Zhang M, Xiong J, Wang J, Zhou X, Shi H, Wang G.   +7 more
europepmc   +1 more source

[Research progress of pubic symphysis diastasis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023
Chen Z, Li Q, Liu R, Guo H, Tang P, Chen H.   +5 more
europepmc   +1 more source