Results 51 to 60 of about 10,240 (187)
Jianzhu Gangjiegou Jinzhan, 2016 为了揭示某体育馆屋盖马鞍形钢结构体系的新颖独特,将整体屋盖划分为外围结构和内场结构进行受力分析,介绍了节点形式,总结了结构的各项计算参数。弹性地震分析表明,结构的极限状态分析结果和整体受力性能满足设计要求。针对抗侧斜柱进行了几何非线性稳定分析,计算结果表明未出现失稳现象。通对整体结构的抗连续性倒塌分析,判断出重要构件并借助敏感性分析将构件的重要性进行了排序,并针对抗侧斜柱采用了简化分析方法,最终分析结果表明,杆件失效后整体结构不会发生垮塌。证明了结构方案的安全性和合理性。
朱保兵
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Jianzhu Gangjiegou Jinzhan, 2021 对中、美、欧现行规范关于钢结构截面类型及宽厚比限值的要求进行了归纳比较,利用ABAQUS有限元软件进行了单根H形钢梁考虑初始缺陷的屈曲承载力分析并与规范公式计算结果进行了对比。在此基础之上,以雄安站站房雨棚钢结构为背景,选取具有代表性的区域建立空间交叉H形钢梁精细有限元模型。对不同板件宽厚比的空间交叉H形钢梁进行了非线性屈曲承载力分析,研究了翼缘宽厚比及腹板高厚比对空间交叉H形钢梁局部稳定性和屈曲性能的影响。研究结果表明:ABAQUS模型对钢梁整体稳定性计算结果与规范公式吻合度较高 ...
朱丹 +6 more
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Wildlife Letters, Volume 3, Issue 3, Page 109-117, September 2025.We found that the Asian Openbill primarily roosted near waterbodies and frequently used farmland habitats, with significantly higher populations observed during the breeding season. Farmland and wetland areas exhibited a positive effect on the species' habitat use.
Ganesh Tamang +3 more
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Interpolating 3D data with bi-arc spline(3D数据点列的双圆弧样条插值)
Zhejiang Daxue xuebao. Lixue ban, 2000 本文给出了用双圆弧样条来插值3D空间有序数据点列的一种方法，该方法对数据点列没有任何限定性要求，非常稳定可靠并且可作局部修改.无论是闭曲线还是开曲线，都能达到整体G1连续.
ZHANGSan-yuan(张三元) +2 more
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Functional Ecology, Volume 39, Issue 8, Page 1957-1971, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Many studies have focussed on niche differentiation at the population level to explain the coexistence of similar species. However, information on how individual‐level processes across multidimensional niches shape community dynamics and species coexistence, especially ...
Man Si +8 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2023 单层网壳结构的安全性很大程度上取决于其稳定承载力，而制作及安装过程中产生的节点几何偏差初始缺陷对其稳定承载力具有重大影响。对单层网壳结构初始几何缺陷场模拟方法的研究进展和现行规范规定进行了系统综述和分析，结果表明既有随机性模拟法、确定性模拟法和半随机性模拟法均存在一定问题，规范所推荐的初始缺陷模拟方法欠实际，从而无法准确确定单层网壳结构稳定承载力的真实概率模型。因此，亟待提出一种考虑结构拓扑约束、基本假定合理、计算代价可控的初始几何缺陷场模拟方法，为单层网壳整体稳定分析方法的完善提供科学依据 ...
曾强, 朱劭骏, 杨旭, 吴晨宇
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Analysis of disaster risk to oil and gas pipelines and the effect of CFG reinforcement on high-fill slopes in Yunnan [PDF]
The study aims to investigate the stability of high fill slopes and their impact on oil and gas pipelines at the foot of the slopes in a key construction project located in Anning City, Yunnan Province.
Dashen YANG +4 more
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Recent progress of direct ammonia fuel cells: from materials to transportation applications
Rare Metals, Volume 44, Issue 6, Page 3686-3708, June 2025.Graphical Abstract AbstractAmmonia is a promising zero‐carbon alternative fuel. Direct ammonia fuel cells (DAFCs), as an efficient ammonia‐fueled power system, have an extremely high application value in the field of transportation for decarbonization.
Yi Huang +8 more
wiley +1 more source
氧化锌避雷器基础知识讲座（四） 第四讲 氧化锌避雷器设计基础知识（Ⅱ）
Dianci bileiqi, 1986 一、氧化锌避雷器整体设计中的几个问题 1.稳定性问题这里指的是氧化锌电阻片在运行中特性的稳定性,可从下列三个方面予以评价: ①运行寿命氧化锌避雷器与传统型带串联间隙的避雷器不同,其电阻片长期承受着运行电压 ...
彭济南
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