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考虑球冠形脱空影响的圆钢管混凝土柱抗侧向冲击性能分析

Jianzhu Gangjiegou Jinzhan
近年来钢管混凝土作为城市高架、跨河桥梁的墩柱常受到车辆、船舶等机械冲击灾害，是引发其结构损伤、破坏甚至严重倒塌的最主要因素之一。而实际钢管混凝土结构由于材料、施工、环境等因素普遍存在脱空缺陷问题，但目前尚缺乏关于带脱空缺陷钢管混凝土抗侧向冲击性能的相关研究报道。为此，建立了考虑球冠形脱空特征的圆钢管混凝土柱抗侧向冲击有限元分析模型，系统分析了脱空率、脱空方位、冲击速度、冲击质量、边界条件、轴压比、径厚比等参数对冲击力（包括峰值Fm和等效值Feq）、挠度变形（包括最大值δm和残余值δr）与能量吸收（Ea ...
朱维军, 沈奇罕, 王静峰, 胡子明   +3 more
doaj  

[Clinical and genetic analysis of two families with combined defect in antithrombin and protein C genes]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Guo YL, Shan TT, Zheng WJY, Zhao C, Kong WZ, Jin PP, Dai J.   +6 more
europepmc   +1 more source

[Study on influence of tooth-supported osteotomy guide plates on the accuracy of mandibular segmental resection and its surgical outcome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma H, Liang K, Qiu R, Liu L.
europepmc   +1 more source

[Rare massive upper gastrointestinal bleeding: Three cases of Dieulafoy<b>'</b>s disease within diverticula of the descending duodenal and a literature review]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhao Q, Zhang J, Zhou Q, He Z, Li H.
europepmc   +1 more source

[Impact of lamina formation range on lumbar biomechanics in unilateral biportal endoscopic spine surgery: a finite element analysis for surgical optimization]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ji S, Ma B, Zou Y, Zhang M, Ren M, Li H, Duan K, Xu C, Zhang C, Ye Y, Zhou P.   +10 more
europepmc   +1 more source

[Prior knowledge-guided and border-focused segmentation of ischemic stroke lesions]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Cui W, Wen Z, Shao H.
europepmc   +1 more source

[Double-layer ceramic technique for restoring severely discolored nonvital maxillary anterior teeth: a case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen J, Yin L.
europepmc   +1 more source

[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

[Donor leukemia relapse and conversion type after allogeneic hematopoietic stem cell transplantation: a case report]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Li RJ, Xiong M, Wang G, Cui Z, Zhu JL.
europepmc   +1 more source

[Basic knowledge and skills required in external fixation and foot and ankle reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Qin S, Du H.
europepmc   +1 more source