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T形方颈单边螺栓连接钢梁-方钢管柱节点试验研究

T形方颈单边螺栓是一类新型的单侧安装紧固件，可用于闭口截面钢构件连接，其构造简单、安装便利、无需额外的安装辅助工具，能适应现场粗放的施工方式，具有较大的应用潜力。对4个T形方颈单边螺栓连接钢梁-方钢管柱节点和1个传统螺栓连接节点开展了单调荷载下的静力性能试验，探讨了长圆形螺栓孔布置方案以及端板加劲肋和钢管柱内混凝土两种加强措施对节点结构响应的影响。研究了T形方颈单边螺栓连接节点的破坏模式、转角-弯矩关系、关键部位转角-应变关系、各部位屈服顺序等，揭示了此类节点的工作及破坏机理 ...
王培军, 王新华, 孙乐乐
core  

[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Yan XZ, Chu JH, Li B, Chen XY, Yuan BS, Li HY, Wang GL, Ji Q.   +7 more
europepmc   +1 more source

[TiRobot-assisted minimally invasive treatment of geriatric fragility fractures of the pelvis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li C, Dai Y, Cai W, Situ X, Zeng Y, Du X, Hong S.   +6 more
europepmc   +1 more source

方钢管混凝土柱全螺栓装配式连接节点抗震性能数值分析

为解决钢管混凝土柱与柱连接节点现场焊接带来的污染严重、建设效率低等问题，融合十字形芯筒方便加工和施工的优点，在课题组提出的自攻螺栓芯筒式柱节点基础上，提出一种新型连接节点，即内置十字形芯筒方钢管混凝土柱全螺栓装配式连接节点。基于该连接节点拟静力试验结果，利用ABAQUS软件建立数值分析模型，验证模拟方法的可靠性，并针对自攻螺栓、加劲肋和十字形芯筒不同构造组合开展参数化分析。研究结果表明：数值分析结果与试验结果吻合较好，验证了数值分析方法的可靠性；自攻螺栓有效抑制了法兰板的翘曲变形和相对开口 ...
张爱林, 沈森, 张艳霞, 林晓俊
core  

[Short-term effecetiveness of endoscopic lumbar discectomy combined with annular suturing in treatment of lumbar disc herniation]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang S, Yao F, Liao Z, Wang T, Shen M.
europepmc   +1 more source

[Arthroscopic-assisted closed reduction and internal fixation with absorbable screws for Hawkins type <b>Ⅱ</b> talar neck fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Dong Z, Cao Z, Dong H, Jiang H, Shi L, Zhang Y, Sun J.   +6 more
europepmc   +1 more source

[Refractory systemic lupus erythematosus-associated thrombocytopenia treated with avatrombopag: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Tang X, Ding Q, Zhang Y, Wang Y, Tian M, Sun Z, Wang R, Chen Y, Liu J.   +8 more
europepmc   +1 more source

[Caplacizumab combined with therapeutic plasma exchange, glucocorticoids, and rituximab for refractory thrombotic thrombocytopenic purpura: a case report and literature review]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Wei QZ, Lu C, Jiang HW, Hu JB, Wu YH, Hu Y.   +5 more
europepmc   +1 more source

[Pulmonary branch embolism after short<b>-</b>term spinal cord stimulation for zoster<b>-</b>associated pain: Two cases and a literature review]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Gai Q, Zhang Y, Li H, Ke D, Feng Z.
europepmc   +1 more source

[Predictive value of ultrasound-derived quantitative indicators of umbilical cord hypercoiling and hemodynamic parameters for adverse pregnancy outcomes]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Tan X, Zhou Q, Yuan H, Hou D, Zhu Y, Yao R.   +5 more
europepmc   +1 more source