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内置铆接开孔冷弯薄壁型钢混凝土组合梁受弯性能研究

Jianzhu Gangjiegou Jinzhan
基于锁铆连接传力可靠、强度优异的特征，提出了一种新型的内置铆接开孔冷弯薄壁型钢混凝土组合梁。以底部铆钉间距、截面宽度为变量，对内置铆接开孔冷弯薄壁型钢混凝土组合梁开展了四点弯曲试验，考察了该组合梁的破坏特征、承载性能和延性指标，试验结果表明：新型组合梁受弯时表现出良好的延性性能；底部铆钉间距小的组合梁延性较差；增大截面宽度可提高组合梁的极限承载力。采用ABAQUS有限元软件对该组合梁进行参数分析，重点探究五大关键参数对其力学性能的影响：有无混凝土包裹、混凝土强度、顶部铆钉间距、底部钢板厚度及截面高度 ...
潘志宏, 郑建强, 司启, 王云庆, 李航   +4 more
doaj  

[Endodontic retreatment of a maxillary second molar with chronic apical periodontitis and separated instrument: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zang H, Liang Y.
europepmc   +1 more source

[Comparative analysis of effectiveness of two single-pin internal fixation techniques in treatment of pediatric distal radial metaphyseal diaphyseal junction fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Xu W, Wang W, Ma X, Fan Y, Zhang J, Yao Y, Liu C.   +6 more
europepmc   +1 more source

[Advances in intra-abdominal vascularized lymph node transfer for treatment of limb lymphedema]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Chen Y, Deng C.
europepmc   +1 more source

[Clinical efficacy and safety of totally laparoscopic subtotal gastrectomy with cardia-gastric fundus preservation in middle-upper gastric cancer]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Liu Y, Lyu Y, Chen J, Zang M, Pan H, Liu X, Lu J, Liu F.   +7 more
europepmc   +1 more source

[Esketamine alleviates depression-like behaviors in mice with chronic restraint stress by activating glutamatergic neurons in the medial prefrontal cortex]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhang Z, Hao X, Cao F, Guo Y, Guo S, Cai C, Mi W, Tong L.   +7 more
europepmc   +1 more source

[Conversion therapy for hepatoid adenocarcinoma of the stomach: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li J, Chen L, Tang J, Wu Y, Wang A.
europepmc   +1 more source

[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

[Adeno-associated virus-mediated gene therapy for genetic epilepsy: prospects and challenges]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Sun B, Wang XL, Peng J.
europepmc   +1 more source

[Endoscopic characteristics of primary gastric lymphoma and prediction of treatment response]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Wei J, Ye J, Zhou M, Fu W, Liu X, Zhai K, Shi Y, Ding S, Zhang J.   +8 more
europepmc   +1 more source