Results 21 to 30 of about 1,107 (197)
Determination of ultimate bearing capacity of pile under static load test based on cusp catastrophe model [PDF]
There are many analysis methods to determine the ultimate bearing capacity of single pile by using the load-settlement curve obtained from the static load test, but so far, reasonable and theoretical calculation method to solve the ultimate bearing ...
Jibao YANG
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Mechanical mechanism and parameters sensitivity analysis of the steel frame-geotextile system for the pre-reinforcement of flow plastic soil [PDF]
In reclamation projects for port construction, the pre-reinforcement of flow plastic fill soils is critical for promoting deep drainage consolidation and enhancing subgrade bearing capacity.
Jianing HUANG +5 more
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两阶段变刚度桩筏基础承载力可靠度分析及其在高层建筑基础的应用 [PDF]
, 2013 通过建立承载力计算的极限状态方程,结合工程实例,运用可靠度理论,对两阶段变刚度桩筏基础的承载力进行了可靠度分析与验证,对其安全系数指标和可靠度指标的关系进行了研究分析,得到了基于概率极限状态设计方法即现行规范《建筑结构可靠度设计统一标准》的可靠度指标,验证了采用安全系数法作为两阶段变刚度桩筏基础承载力验(计 ...
冯新建 +3 more
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波形钢腹板钢管混凝土模型拱面内极限承载力试验研究 [PDF]
, 2010 进行了波形钢腹板钢管混凝土模型拱的面内两点非对称和对称加载试验。对模型拱的挠度、钢管应变、波形钢腹板应变、极限承载力等进行了分析。试验结果表明:波形钢腹板钢管混凝土拱是一种受力性能很好的新型组合拱。在这种结构中,波形钢腹板与钢管混凝土弦杆均能发挥其各自的优势。它与钢管混凝土单圆管和哑铃形拱相比,刚度与承载力有了很大提高;与钢管混凝土桁拱相比,避开了节点破坏问题,模型拱呈总体破坏特征,从而使其延性与极限承载力明显提高。有限元分析表明:在承载力分析中应考虑双重非线性的影响 ...
陈宝春, 高婧
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Research on the Influence of Pile Shoe Insertion and Removal on the Neighboring Three-Cylinder Jacket Foundation in Clay [PDF]
[Introduction] The construction process of pile insertion and removal for installing offshore wind turbines on mobile platforms is risky, which can easily affect the working performance of adjacent infrastructure, and even lead to its instability and ...
Di HAO +3 more
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Jianzhu Gangjiegou Jinzhan, 2023 为了探究钢-混凝土组合梁高强螺栓连接件在拉剪复合作用下的承载性能，采用ABAQUS有限元软件建立了推出试件有限元模型，并通过与试验结果对比验证了数值模拟的可靠性。探讨了拉拔力荷载、螺栓预拉力、混凝土强度、螺栓预留孔隙和摩擦系数等参数对极限抗剪承载力、极限滑移和滑移后刚度的影响。分析结果表明：高强螺栓连接件的抗剪承载力随着拉拔力荷载的增大而减小，随着螺栓预拉力、混凝土强度和摩擦系数的增大而提高，预留孔隙对抗剪承载力影响较小，但对刚度影响较大。提出螺栓抗拉剪共同作用承载力计算公式，在拉剪共同作用极限状态下 ...
潘晨, 邢颖, 郭琪, 刘雁斌
doaj
, 2008 提出一种分析管线地基极限承载力的平面应变有限元模拟方法,采用自适应网格技术和接触对算法模拟管线嵌入土体的准静态过程,利用修正Drucker-Prager/Cap本构模型模拟土体塑性。研究不同土性和管土界面摩擦条件下,管线地基土体的塑性变形及位移场特性。利用载荷沉降曲线并结合地基塑性应变分布图和位移矢量图,可判别管线地基的剪切破坏型式 ...
赵波, 雒承才, 高福平
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Jianzhu Gangjiegou Jinzhan, 2023 为研究粗骨料类型、空心率、长细比和偏心距对方中空夹层钢管陶瓷再生混凝土柱偏压力学性能的影响，进行了16根试件的偏压试验，其中粗骨料类型分别为废弃陶瓷和天然碎石。试验结果表明：所有试件均表现为弹塑性失稳破坏；试件的极限承载力和抗弯刚度随长细比和偏心距的增大而降低，其中中空夹层试件的极限承载力高于实心试件的相应值；陶瓷再生混凝土试件展现出了较好的延性和变形能力，其极限承载力与普通混凝土试件接近。使用有限元软件对试验进行模拟，模拟得到的荷载-跨中挠度曲线整体与试验曲线接近。采用T/CCES 7—2020和DB
黄宏 +5 more
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Comparative Analysis of Slenderness Ratio Calculation Methods of Cross Bracings for Towers Between China and EU Overhead Transmission Line Standards [PDF]
, 2023 [Introduction] This paper aims to effectively avoid the design quality problems caused by the difference between domestic and foreign engineering design specifications. The study makes comparative analysis of slenderness ratio of cross bracings for angle
Hongliang GUO +3 more
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Jianzhu Gangjiegou Jinzhan, 2019 现有《钢结构设计规范》公式没有明确反映偏心距对节点承载力的影响。为了考察偏心距对钢管K形相贯节点的承载力的影响规律,建立偏心钢管相贯节点有限元模型,研究偏心相贯节点的受力机理;同时分析主管轴压力、加劲肋对节点承载力的影响规律。分析结果表明:偏心节点和无偏心节点破坏模式基本相同;偏心距影响节点承载力,负偏心增大有利于提高节点的极限承载力,正偏心降低节点极限承载力;而且相对正偏心而言负偏心对极限承载力影响更大。相贯节点的承载力模拟值比规范计算值大10%～30%,即规范公式计算结果偏于保守。
王龙飞, 戴岳, 张大长
doaj