高桩码头整体安全度定量分级方法

发布时间：2018-08-19 06:14

【摘要】：高桩码头是我国广泛采用的重要结构形式之一,其构件多、结构复杂,容易出现损伤或破坏,因此其安全性一直受到普遍关注。该文在查阅和整理了国内外关于可靠性评价的一系列标准、规范以及研究人员对结构可靠度安全等级划分等工作成果的基础上,用结构整体极限承载力表征体系的抗力,计算结构的可靠指标;依据关于结构安全分级标准的相关规范,反推得到相应的结构目标可靠指标,从而建立了基于整体可靠指标的高桩码头安全度定量分级方法。此外,按照不同可变荷载组合对该分级标准进行了讨论,并得出了一些基本规律。以某高桩码头为例,采用该文提出的高桩码头整体安全度定量分析与分级方法,对该结构破损后的安全度进行评估,结果与工程实践结论相一致。
[Abstract]:High pile wharf is one of the important structural forms widely used in our country. It has many components, complex structure, easy to damage or damage, so its safety has been widely concerned. On the basis of consulting and sorting out a series of standards, codes and researchers' achievements on reliability evaluation, the resistance of the system is represented by the ultimate bearing capacity of the structure. The reliability index of structure is calculated and the corresponding structural target reliability index is derived according to the relevant criterion of structural safety classification standard, and the quantitative classification method of safety degree of high pile wharf based on integral reliability index is established. In addition, the classification criteria are discussed according to different variable load combinations, and some basic rules are obtained. Taking a high pile wharf as an example, the quantitative analysis and classification method of overall safety degree of high pile wharf proposed in this paper is used to evaluate the safety degree of the damaged structure. The results are in agreement with the engineering practice.
【作者单位】：天津大学建筑工程学院天津市港口与海岸工程重点实验室;中交水运规划设计院有限公司;中交第四航务工程勘察设计院有限公司;
【基金】：国家自然科学基金项目(51279128) 天津市自然科学基金项目(10SYSYJC27300) 天津市科技支撑计划重点项目(10JCYBJC03400)
【分类号】：U656.113

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