Results 51 to 60 of about 844 (100)

模块化钢框架模块间内套筒连接节点抗震性能试验研究

Jianzhu Gangjiegou Jinzhan
设计了3个足尺模块化钢框架模块间内套筒连接节点试件，针对节点试件的抗震性能开展了拟静力低周往复加载试验，研究了节点试件的滞回曲线、骨架曲线、延性、耗能、刚度退化、层间位移角、转动刚度等抗震性能指标，并对影响节点试件抗震性能参数进行分析。研究结果表明：节点试件的滞回环面积较为饱满并呈梭形，表明节点试件具有较强的耗能能力；3个节点试件均有显著的刚度退化现象且下降坡度平缓；3个节点试件的层间位移角分别为0.085、0.082、0.096 rad，表明节点试件均具有良好的转动能力和延性性能并满足节点抗震设计要求；
张忠豪, 王燕, 安琦, 武文爽, 刘子良   +4 more
doaj   +2 more sources

开缝钢板剪力墙滞回性能研究

Jianzhu Gangjiegou Jinzhan, 2018
开缝钢板剪力墙的开缝形式能够改善结构破坏形式、提高耗能能力及延性。为研究不同开缝形式和开缝参数对开缝钢板剪力墙的滞回性能影响,利用ABAQUS有限元软件建立了开缝钢板剪力墙的数值模型。结果表明,有限元计算结果和试验结果吻合较好。设计了竖缝、斜缝和对称斜缝3种开缝形式,通过28个钢板剪力墙试件的计算分析发现开缝钢板墙能够很好地实现屈曲前屈服。开缝使得钢板墙的承载力和刚度明显下降,但滞回环饱满,具有较好的耗能性能;而对称斜缝钢板墙可获得较好的屈服耗能。研究结果表明:缝间墙肢宽高比为0 ...
白杨, 王卫华, 张伟, 徐哲人, 李升才   +4 more
doaj  

[β‑blockers after percutaneous coronary intervention does not reduce risks of all-cause mortality or major adverse cardiovascular events in patients with stable coronary artery disease]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Gao X, Xiao J, Feng N, Guo C, Cao L, Zhang C, Zhang Y, Han T.   +7 more
europepmc   +1 more source

[Application of musculoskeletal ultrasound combined with Wide-Awake technique in extensor indicis proprius tendon transfer for repairing extensor pollicis longus tendon rupture]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Yang X, Fan H, Su X, Fang X, Xu Y, He X.
europepmc   +1 more source

[Risk factors and development of a predictive model for myocardial injury in children with rotavirus-induced diarrhea]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Feng LP, Wang XG, Niu WS, Shi JJ, Wang HY.   +4 more
europepmc   +1 more source

[Role of the SII and SIRI in risk prediction, disease activity assessment, and prog-nostic evaluation of Behçet disease uveitis]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gao Y, Li Z, Ma M, Wu L.
europepmc   +1 more source

[Association of public health and social measures with the effectiveness of COVID-19 epidemic control]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zong H, Li D, Dai Y, Zhou J, Huang H, Hu G.   +5 more
europepmc   +1 more source

[Construction and Validation of a Risk Prediction Model for Postoperative Constipation in Patients With Osteoporotic Thoracolumbar Fracture Undergoing Percutaneous Kyphoplasty]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Liu X, Wu Y, Kang L, Lin S, Cai Z, Lin W.   +5 more
europepmc   +1 more source

[Efficient separation of gossypol from cotton kernels with copper mediated magnetic molecularly imprinted polymer]. [PDF]

Se Pu
Yang SL, Cao Y, He KL, Feng S, Zhang CG, Shan LH.   +5 more
europepmc   +1 more source

[Observation on analgesic efficacy of ultrasound-guided high fascia iliac compartment block for tourniquet-related pain following total knee arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Yu Q, Tang Y, Fu H, Jiang L, Song B, Wang W, Xie Q, Chen S.   +7 more
europepmc   +1 more source