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圆中空夹层不锈钢管水泥砂浆短柱轴压性能研究

Jianzhu Gangjiegou Jinzhan
海洋工程平台塔架结构中，圆形截面中空双钢管是主要受力构件，工程界十分关注其受压性能和耐腐蚀性能。为研究圆中空夹层不锈钢管水泥砂浆短柱的轴压力学性能，以外不锈钢管壁厚、内碳素钢管直径和是否含夹层水泥砂浆为试验变量，共设计了12个短柱试件。分析各试件的破坏情况、荷载-位移曲线、承载力、变形能力及应变特征，研究不同变量对极限承载力的影响规律。结果表明：试件破坏形态为外钢管端部或中部局部屈曲破坏；随着不锈钢管壁厚的增大，试件的轴压承载力近似呈线性增长；夹层水泥砂浆对试件力学性能影响较大，可有效提高试件承载力 ...
乔崎云, 翟宏磊, 曹万林
doaj   +2 more sources

[Establishment of rabbit model of benign circumferential esophageal stricture]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng L, Huang Y, Yan X, Wang Y.
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

[Clinical characteristics and gender differences in Wagner grade 4-5 diabetic foot patients with variable severity of lower extremity atherosclerotic occlusive disease]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Gong X, Yuan T, Chen Z, Peng Y, Huang Y.
europepmc   +1 more source

[Image classification of osteoarthritis based on improved shifted windows transformer and graph convolutional networks]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Jiang L, Cao H, Ma Z.
europepmc   +1 more source

[Effectiveness of lymphaticovenular anastomosis combined with perioperative targeted drainage in treatment of secondary lower limb lymphedema: a prospective randomized trial]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang X, Du J, Zhang X, Lu S, Zhao L, Cai H.   +5 more
europepmc   +1 more source

[Quantitative Assessment of Microvascular Changes in Diabetic Retinopathy and Their Association With Blood-Retinal Barrier Impairment]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Lei Y, Lü H, Zhou Q, Tian M, Cao Y.
europepmc   +1 more source

[Lung nodule segmentation method based on multiscale feature interaction and coordinate information]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu Q, Zhu H, Wang Y, Liu W.
europepmc   +1 more source

[Optical coherence tomography angiography image segmentation based on multi-scale dilated convolution and dual attention network]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zeng Q, Xiao Z, He B, Peng R.
europepmc   +1 more source

[Risk factors for mortality in children with severe drowning: a 10-year single-center retrospective study]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Yang YX, Yan L, Yu H, Xiong LP, Liu H, Chen Q.   +5 more
europepmc   +1 more source