Results 31 to 40 of about 958 (82)

考虑黏结滑移的型钢超高性能混凝土组合梁受力性能影响因素分析

Jianzhu Gangjiegou Jinzhan
型钢混凝土组合结构中采用超高性能混凝土（ultra-high performance concrete，UHPC）可以提高承载能力、减小截面尺寸，同时改善其因密集配置箍筋和剪力件而导致的施工复杂等问题。目前型钢UHPC组合梁有限元仿真研究主要集中在受弯性能参数化定性分析，忽略了型钢与UHPC间的黏结滑移，缺少对其界面黏结性能和组合效应的评估，对受拉区UHPC的受力性能也缺乏深度讨论。对型钢UHPC组合梁开展基于Abaqus的受弯性能有限元仿真分析，对UHPC强度、型钢强度 ...
沈德建, 白松林, 姜国庆, 刘慈, 李明   +4 more
doaj   +2 more sources

低温下早龄期混凝土爬模连接件受剪性能研究

Jianzhu Gangjiegou Jinzhan
冬季施工环境下，早龄期混凝土在模板爬升过程中部分区域易暴露于低温环境中，面临冻害风险，这可能会影响爬模连接节点的抗剪性能，从而影响施工的安全性。为研究低温条件下早龄期混凝土爬模连接节点的抗剪性能，文中设计了6个试件并对其进行了推出试验，还基于低温下混凝土与钢材的本构关系，采用ABAQUS有限元软件建立了爬模连接件的有限元模型。研究参数包括温度、混凝土龄期、抗剪螺栓直径与强度。基于试验及数值模拟结果，分析试件的破坏模式、荷载-滑移曲线、荷载-应变曲线等。结果表明：低温下试件发生了脆性破坏 ...
周伟善, 狄鹏, 严文亮, 孔国斌, 杨晓霞, 严加宝   +5 more
doaj  

[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Han G, Sun Z, Tang X.
europepmc   +1 more source

[Research progress on calcification mechanism and anti-calcification strategies of vascular grafts]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Su X, Qiu F, Wang H, Han Q.
europepmc   +1 more source

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

[Application of Kartogenin in cartilage tissue engineering]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang J, Zhang S, Lu W.
europepmc   +1 more source

[Impact of tibial tunnel position in artificial posterior cruciate ligament reconstruction on postoperative knee function and stability]. [PDF]

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

[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song BQ, Pei JM.
europepmc   +1 more source

[The role and mechanism of chemokine network in promoting osteoarthritis progression by regulating synovial macrophage heterogeneity]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lin Y, Wu L, Chen Q, Shen B.
europepmc   +1 more source

[Role of the TGF<b>-β</b>1 signaling pathway in modulating in vivo adaptation of vascular grafts]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhang L, Li R, Xi Y, Xiao M, Xia D, Li X, Shu C.   +6 more
europepmc   +1 more source