Results 91 to 100 of about 3,579 (164)

资源环境承载能力预警的超载成因分析方法及应用@@@Method and application of cause analysis for early-warning of resource and environmental system overloading

, 2017
徐勇, 张雪飞, 周侃, 王传胜, 徐小任, Xu Yong, Zhang Xuefei, Zhou Kan, W. Chuan-sheng, Xu Xiaoren   +9 more
semanticscholar   +1 more source

距厚比对装配式SCCT剪力墙轴压性能影响研究

Jianzhu Gangjiegou Jinzhan
为研究距厚比对装配式钢-混凝土组合管（SCCT）剪力墙轴压性能影响，本文设计了6个剪力墙试件的轴压性能试验，分析了试件的破坏形态、应变发展、承载能力和位移延性；基于试验并考虑钢板的初始缺陷，建立SCCT剪力墙的精细化有限元模型，并以距厚比为关键参数进行数值分析。结果表明：钢板厚度相同时，随着距厚比的增大，试件钢板屈曲程度加剧，轴压承载力和刚度减小，位移延性略有提高；基于距厚比与钢板厚度、材料强度的正交分析，建议SCCT剪力墙的距厚比取值不超过80；当含钢率相同时 ...
庞瑞, 张健, 周超锋, 雷红兵, 党隆基, 秦守婉   +5 more
doaj  

梁柱全焊节点高温后抗震性能试验研究

Jianzhu Gangjiegou Jinzhan, 2017
梁柱全焊节点在建筑钢结构中广泛应用,其火灾后受力性能对整个结构灾后承载安全至关重要。通过5个梁柱全焊节点试件高温冷却后的低周反复加载试验,研究了高温过火对其承载力、延性和耗能能力的影响规律。试验过火温度介于500800℃之间,冷却方式为自然冷却。试验结果表明,所有试件均发生梁柱翼缘对接焊缝处的断裂破坏。高温冷却后试件的抗弯承载力较未过火试件有所降低,延性和耗能能力有所提升,变化幅度统一呈现随过火温度的升高先增大后减小的变化规律。当过火温度为700℃时,节点承载力降低最大,降低幅度约为20 ...
陈颖, 朱美春, 程亮
doaj  

面向重建规划的灾后资源环境承载能力应急评价范式@@@Paradigm and prospects of emergent evaluation of post-disaster resource and environmental carrying capacity for reconstruction planning

, 2017
周侃, 樊杰, 徐勇, Zhou Kan, Fang Jie, Xu Yong   +5 more
semanticscholar   +1 more source

矩形管翼缘开孔波纹腹板钢梁抗剪性能试验研究

Jianzhu Gangjiegou Jinzhan
为研究矩形管翼缘开孔波纹腹板钢梁的抗剪性能，设计完成了四个试件的受剪试验。通过分析试件的破坏模态、荷载-位移曲线和关键区域的应变发展规律，研究了试件的抗剪性能、极限承载力及波纹腹板在开孔后分担的剪力比例。利用ABAQUS进行了数值模拟，将模拟结果与试验结果进行对比，验证了有限元模型的正确性。研究了腹板几何初始缺陷和开孔偏移对抗剪承载力的影响。结果表明矩形管翼缘开孔波纹腹板梁具有较好的延性性能；其抗剪承载力会随着开孔孔径的增大而降低，腹板波纹越密集，抗剪承载力越高；开孔横向偏移对抗剪承载力影响不明显 ...
曹艺濒, 蒲万丽, 邵永波, 邓皓, 黄超   +4 more
doaj  

[Initial exploration of the relationship between homeostatic occlusion and long-term dental implant stability]. [PDF]

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

[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ling Y, Han J, Zhang Z, Peng Y, Zhang J, Chen Z, Jin Z.   +6 more
europepmc   +1 more source

[Finite element analysis of tibial and femoral resection configurations on varus alignment in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liang C, Yin Y, Zhang Y, Zhang X, Chen G, Duan K, Li Z, Lu X, Jin Z.   +8 more
europepmc   +1 more source

[Finite element modeling and simulation study of solid-liquid biphase fiber-reinforced lumbar intervertebral disc]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Gao Y, Fu Y, Cui Q, Chen S, Liu P, Liu X.   +5 more
europepmc   +1 more source

基于承载能力的呼和浩特市水资源管理研究 Water Resources Management of Huhhot City Based on Carrying Capacity

, 2012
徐晓民, 郭中小, 贾利民, 彭淑娟   +3 more
semanticscholar   +1 more source