共查询到16条相似文献,搜索用时 109 毫秒
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厦门港漳州客运码头工程是老码头改造工程,东西两侧均已建有码头,地形狭小。通过对码头结构型式进行比较,选择趸船方案,同时对趸船方案抛锚进行优化设计,提高码头在台风期的安全稳定性,增强趸船结构的适应性,也为狭小区域趸船码头的改造提供借鉴。 相似文献
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基于江苏海事局海事执法管理模式改革的要求,作为执法基地用途的趸船与传统意义的趸船有很大的区别,本文分析了新型趸船为满足海事执法基地的多功能需求,在外形、布置、设施配置和功能等方面的特点。 相似文献
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铝合金舟桥结构设计与甲板力学性能研究 总被引:1,自引:0,他引:1
针对铝合金舟桥在设计、受力分析、制造工艺诸方面的技术难题,开展了“铝合金用于舟桥承重结构的设计研究”预先研究工作。通过分析和试验研究,选出5种符合舟桥结构特点和加工要求的国产铝合金材料,确定了它们的机械性能和本构模型,制定了铝合金舟桥实用的焊接制造工艺;根据铝合金材料和舟体受力特点,提出了铝合金舟体结构的设计原则和雏形;通过结构拓扑优化和尺寸优化,确定了铝合金甲板的设计方案;通过理论分析和试验研究,建立了舟体结构强度的有限元数值分析模型,分析了铝合金甲板极限承载力和破坏机理,并建立了合理的失稳模态计算模型。 相似文献
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In this paper, a theoretical calculation method that can be generally applied to responses analysis of irregular bridge span pontoon connected by elastic hinges was proposed based on the elastic foundation beam theory. This method can solve the displacements, rotation angles, bending moments and shear forces of pontoon bridge under vertical static loads. By comparing with the experimental and numerical results in other researches, the correctness and universality of theoretical method are verified. The main response characteristics of the pontoon bridge under vertical static loads are further investigated based on a detailed case study, which contrasts the results of three methods including the theoretical method in this paper, AQWA software and FEM. The results reveal that the rotation stiffness of elastic hinges has a great influence on the responses of the pontoon bridge. The elastic deformation of the pontoon units can be ignored when the rotation stiffness of hinges is small, while it needs to be considered seriously when the rotation stiffness of hinges reaches a certain value. Besides, the flexural rigidity of pontoon bridge also has a sensitive influence on the numerical results. The theoretical method can provide for the optimal design of the pontoon bridge and has significant engineering application prospects. 相似文献