Results 11 to 20 of about 1,605 (148)
Research on Axial Mechanical Properties of the Grouted Connection Section Considering Installation Errors [PDF]
, 2023 [Introduction] With the development of offshore wind turbine works to deep sea areas, the challenging construction environment tends to result in errors in the installation of the grouted connection for the jacket foundation.
Cheng CHEN +4 more
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Dianci bileiqi, 2022 为研究大直径复合绝缘子承载力特性及法兰胶装节点破坏过程，建立基于内聚力材料模型(CZM)的复合支柱绝缘子法兰胶装节点精细化有限元模型，模拟法兰节点区域在弯矩荷载作用下的破坏，并分析结构参数对大直径复合绝缘子承载能力的影响。分析结果表明，大直径复合绝缘子承载过程分为套管线性承载阶段和法兰节点非线性承载阶段，胶装节点脱粘破坏后，复合套管有竖直向上滑移的趋势，胶装处裂缝宽度为4.13 mm。大直径复合绝缘子线性阶段极限承载力35.1 kN,粘结层完全破坏时极限承载力为46.5 kN ...
张若愚, 曹枚根, 李惠庸
doaj
Jianzhu Gangjiegou Jinzhan, 2021 基于现阶段关于PEC柱抗震性能方面研究的不足。以轴压比、钢材等级及加载方式为参数,设计制作了8个PEC柱1∶3缩尺模型并完成了低周往复加载试验。分析了试件的破坏形态、滞回耗能、承载能力、延性性能、强度退化、刚度退化等力学性能,研究结果表明:试件破坏形态为压弯破坏,滞回曲线基本呈对称的饱满梭形,具有良好的塑性变形及耗能能力。试件承载力随轴压比增加而增加,但同时也会造成延性性能变差。试件在等幅阶段多次循环及加大级差加载后的强度、刚度退化均相对稳定,承载力、耗能变化不大 ...
李补拴, 张宇鸣, 赵根田, 闻洋
doaj
Research for Vertical Bearing Characteristics of Top Grouting Jacket Pile Foundation in Clay Foundation [PDF]
, 2023 [Introduction] The top grouting jacket pile foundation is a new type of foundation application for offshore wind power jackets on clay seabed. Since the grouting section can bear some loads, its stress and deformation mechanism is significantly different
Bo LIU, Can ZHENG, Hexing SONG, Lu XU
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Research on Bearing Capacity of Angle Steel Transmission Tower Subject to Parallel Reinforcement by Fitting Channel Steel [PDF]
, 2023 [Introduction] The existing angle steel transmission tower has been running for many years, and the structural damage leads to the reduction of service performance.
Donghong ZHANG +4 more
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Jianzhu Gangjiegou Jinzhan, 2023 装配式轻钢复合墙是一种集承重保温围护一体化的新型墙体。为研究轻钢复合墙体的抗震性能，以轻钢龙骨形式和填充材料类型为变化参数，设计了4块足尺试件进行了低周往复荷载试验。得到了各试件的水平承载力、滞回特性和破坏特征，并对结构的抗侧刚度、耗能能力和水平承载力进行了分析。结果表明：墙体轻钢骨架与内填材料协同工作性能良好，墙体的最终破坏特征为钢骨架强度破坏。水平龙骨由C型钢调整为双面扁钢可提高其水平承载力，但会降低墙体的延性和耗能能力；内填聚苯颗粒泡沫混凝土墙体相较于内填泡沫混凝土填充墙体，其水平承载力 ...
王彤彤, 周学军, 王卫东, 王振
doaj
Study on damage mechanism and treatment of water sprayed roof in Jurassic stratum roadway [PDF]
, 2023 The roof of the Jurassic main coal seam in western China generally contained low level weak rich water layer, which led to the long-term watering of the roof of the coal roadway especially the roof anchor cable hole and the reduction of the roof ...
Guohui WEN +6 more
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Jianzhu Gangjiegou Jinzhan, 2021 钢板仓组合剪力墙是一种新型抗侧力构件,是以两块钢板和圆管支撑组成基本单元,空腔内填充混凝土的组合剪力墙。基于ABAQUS软件,建立了考虑材料非线性和几何非线性等因素影响的钢板仓组合剪力墙有限元分析模型,分析了钢板仓组合剪力墙圆管支撑布置密度、轴压比、含钢率及高宽比对其水平承载力和延性性能的影响。分析结果表明,钢板仓组合剪力墙具有较高的水平承载力和良好的变形能力,圆管支撑的布置密度对其延性性能和变形能力影响较大。支撑布置方式选用无支撑、1列(1×5)、2列(2×5)、3列(3×5)四种方式 ...
郁有升, 王轩
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Experimental study on progressive failure of anchoring structure under high-frequency and low-energy impact disturbance [PDF]
High-frequency, low-energy impacts consistently inflict damage on the surrounding rock and anchoring structure in deep roadways, leading to ongoing instability. The construction of anchoring support system that can withstand these dynamic impact loads is
Jiaguang KAN +5 more
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Research Progress on Spudcan Foundation of Movable Jack-Up Platforms [PDF]
[Objective] Movable jack-up platforms have been widely used in various types of marine engineering in recent years. With the development of engineering construction to the deep and distant sea, more complex marine environmental conditions pose ...
Dengfeng FU +5 more
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