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整段拼装式输电塔对接节点承载力试验研究

Jianzhu Gangjiegou Jinzhan
文中针对角钢铁塔，设计出一种上下两端完全分开、形成独立段的结构，各段间采用圆形座板式对接。该结构可减少主材接头处螺栓群的数量，既有利于优化现有施工组塔方式，提高组塔效率与施工安全性，也为机器人登塔作业提供便利条件。其中，对接节点是保障整塔稳定的关键部件，为明确其承载机制、破坏模式及极限承载力，文中开展了10个足尺节点抗拉承载力试验研究，考察了底板厚度、底板直径、孔位直径及螺栓孔径对节点荷载-位移曲线及承载力的影响。同时建立了合理的对接节点有限元模型，进一步研究了节点底板尺寸、螺孔尺寸 ...
陈锡祥, 张金锋, 罗义华, 张树林, 李涛, 张佳伦, 刘红军   +6 more
doaj  

[Research progress on external cervical resorption]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Chen R, Bian M, Zhao J, Qian L, Shi Y, Wu Z.   +5 more
europepmc   +1 more source

[Review of application of U-Net and Transformer in colon polyp image segmentation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi Y, Sun S, Liu J, Ma J, Li M.
europepmc   +1 more source

[Expert consensus on overall standardized management of gadoxetate disodium-enhanced MRI examinations (version 2026)]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Abdomen Group of Chinese Society of Radiology, Chinese Medical Association, Nursing Group of Chinese Society of Imaging Technology, Chinese Medical Association, Chongqing Society of Radiology, Chongqing Medical Association, Imaging Nursing Committee, Chongqing Nursing Association.   +7 more
europepmc   +1 more source

[Research Progress on Microbiome-Driven Mechanisms and Intervention Strategies for Oral Malodor]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Shang X, Wang Z, Ge S.
europepmc   +1 more source

[Long-term prognosis and influencing factors of anterior composite resin restoration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen W, Wu F, Wei X.
europepmc   +1 more source

[Comparison of effectiveness between two endoscopic lumbar interbody fusion techniques and minimally invasive transforaminal lumbar interbody fusion for single-level lumbar degenerative disease]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li Y, Kong W, Li J, Ma C, Ren Y.
europepmc   +1 more source

[Interpretation of the 2025 American Academy of Orthopaedic Surgeons (AAOS) on Management of Rotator Cuff Injuries Evidence-Based Clinical Practice Guideline]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ye Y, Lu B, Li J, Zhang K.
europepmc   +1 more source

[A multi-scale feature capturing and spatial position attention model for colorectal polyp image segmentation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Guo W, Chen X, Wu J, Li J, Zhu P.
europepmc   +1 more source

[Enhancement of radiomics-based machine learning models for predicting efficacy of high-intensity focused ultrasound ablation of uterine fibroids using undersampling methods]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Cui Y, Feng M, Yao L, Yan J, Li W, Huang Y.   +5 more
europepmc   +1 more source