Results 21 to 30 of about 5,587 (221)
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
core +1 more source
Application Analysis of CPTU Method for Jacket Large Diameter Short Pile Axial Bearing Capacity [PDF]
, 2023 [Introduction] At present, in China's offshore wind power projects, with the gradual development of the far-reaching sea, the most commonly used foundation structure of wind turbine is the pile foundation, and the most commonly used superstructure is the
Liji WANG
core +1 more source
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
core +1 more source
以水环境承载能力为基础的我国海岸带水环境管理制度体系设计 [PDF]
, 2018 落实生态文明、陆海统筹的战略离不开合理的海岸带水环境管理顶层设计。本文针对中国海岸带水环境管理构建了一套制度安排。这套制度安排以最新国家级规划和部委规章为基本政策依据,以资源环境承载力预警机制为核心内容,以满足水体的流动性及河海的连通性为基本原则,具备较强的科学性和可操作性 ...
毛竹, 薛雄志
core +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 提出了一类新型预制拼装组合结构盖梁。为研究其受力机理，建立了非线性有限元模型，讨论了预制拼装组合结构盖梁破坏过程，分析了钢材强度、本构模型、腹板和顶板厚度对承载力的影响，通过理论计算对数值模拟进行了验证。研究结果表明：新型预制拼装组合盖梁先后出现混凝土开裂、腹板、顶板及加劲肋屈服、强化后达到极限承载力，表现为剪切破坏状态；试件加载中荷载-挠度曲线表现出明显的线性、塑性和加强阶段，结构屈服后有较好的延性，承载力保持逐步增长；试件腹板和混凝土承担70%~75%的极限承载力 ...
周强, 李永君, 刘思维, 刘玉擎
doaj
Jianzhu Gangjiegou Jinzhan, 2023 以荷载作用方向、截面类型、肢高宽比为参数，进行了4根组合L形冷弯钢管混凝土柱的拟静力试验，分析了各参数对试件破坏形态、承载力、延性及耗能等抗震指标的影响。并应用ABAQUS有限元软件建立了数值分析模型，分析了钢管厚度、轴压比等参数对试件承载力和延性影响。结果表明：试件的主要破坏模式为钢管鼓曲开裂，异形钢管的制作方式对试件破坏形态有一定影响，冷弯钢管组合焊接的试件未出现角部开裂，钢板组合焊接的试件出现角部纵向焊缝开裂现象，加快了试件的变形发展；荷载作用方向对试件延性和耗能能力影响不大 ...
王逸伦, 杨锋
doaj
Brief Analysis of the Development of Mechanical Research and Trends of Grouted Connection of Offshore Wind Turbine [PDF]
, 2023 [Introduction] The connection between offshore wind turbine foundation and superstructure is usually made by grouting. It is crucial to ensure the safety of the grouted connections, and the study of grouted connections is always a key and difficult point.
Kan LIAO, Ke CHEN, Li ZHANG
core +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 提出了一种模块化建筑钢结构模块间螺栓-抗剪键节点，并分析了其受力性能。该节点的构造形式一方面实现了竖向承载与水平承载方式的分离，便于节点进行设计和分析；另一方面使得模块间连接操作在室内就可以完成，适用于多种安装位置。通过理论分析得到了双模块连接节点抗拉承载力、抗剪承载力和抗弯承载力的计算方法。使用ABAQUS建立该节点的有限元模型并进行数值模拟，验证节点承载力计算方法的有效性。通过对比双模块连接节点和四模块连接节点的数值模拟结果，说明了共用连接板对节点受力性能影响较小 ...
陈红磊, 陈琛, 李国强
doaj
Integrative Conservation, Volume 3, Issue 4, Page 426-437, December 2024.Globally, human‐use landscapes are being reported to be large carnivore habitats. The study examines the spatial variation of leopard density in the forest‐human use landscape mosaic of the Duars region of West Bengal. Tea estates overshadow forested areas in terms of the absolute density of leopards, reiterating the potential of human‐use areas to be ...
Anish Paul +4 more
wiley +1 more source
Research on evaluation of Island tourism environmental bearing capacity ——Gulangyu island as sample [PDF]
, 2016 海岛因拥有优美的自然环境、丰富的生态资源以及特色的海景而成为国内外旅游胜地，常年接待着大量的国内外游客。因此，关于海岛旅游环境承载力的测定与评价对于解决海岛最佳旅游容量和可持续发展具有重要意义。在旅游发展实践中，海岛旅游承载力存在着旅游容量测定不够精确，即规划容量与实际游客总量存在差异，造成海岛旅游发展不协调的问题。 学术研究中有关海岛/滨海旅游、旅游环境承载力、海岛旅游承载力的研究较多，并取得了承载力的发展认知、承载力的影响因素、承载力的测算与评价、承载力预测预警等研究成果。但是，本文通过文献梳理 ...
吕少玫
core