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建筑结构较小的预测研究
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因此,情商。<一个hr英孚="#e1">1一个>可以表示为:
然而,在实际混凝土结构中,混凝土的微观结构的变化随着时间的推移,和氯离子的有效扩散系数不是常数而是变化;因此,提出了一种改进的氯离子扩散系数<一个hr英孚="#B54">朱(2017一个>)如下:
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表3gydF4y2B一个。建模不确定性的概率特征参数(<一个hr英孚="#B40">魏et al ., 2008一个>;
选择集的集合各种总可能会使评价结果,评价对象,
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结合<一个hr英孚="#T2">表2一个>每个二级指标的权重值,可以得到最终的模糊综合评价模型如下:
同样的,
根据模糊集的操作方法,可以确定隶属度最大的原则从最小的和最大的归一化加权模型,和那里的漏洞可以最后确定。
<一个我d="h6" name="h6">总之,长期服务的制药工厂已经与相对较高的海洋环境潮湿和年度温度在一个相对复杂的地质环境。它采用了一个标准化的现代企业管理系统来管理药物。腐蚀性药物的类型是不到10%,和药物的泄漏面积还不到5%。本文研究了15个指标的现场调查,具体调查结果所示<一个hr英孚="#T6">表6一个>。
1)基于菲克第二定律,一个理论模型建立了钢筋腐蚀起始通过考虑的重要参数临界氯离子浓度、氯离子浓度、表面和氯离子扩散系数的覆盖深度和解决方案,提供了一个理论依据预测海洋环境中氯离子渗透的过程。
2)比较八个模型的计算结果的混凝土保护层开裂时间和实验数据,提出盖开裂时间的理论模型<一个hr英孚="#B21">Lun et al . (2021一个>)是重要参数的选择考虑初始缺陷的形状、保护层厚度、钢筋直径、环境温度、相对湿度、混凝土氯离子含量,并根据断裂力学理论,腐蚀速率与实验结果有很好的一致性,有效预测建筑结构的使用寿命。
3)工程构建了建筑结构脆弱性评价指标体系。建筑位置、设计、施工和服务因素,和药物管理被选为第一级评价因素,和这些精制获得15个主要基本评价因素,基本因素决定的范围。通过层次分析法和模糊综合评价方法,工程使用寿命的评估方法建立了建筑结构的脆弱性。
4)本文建立的评价方法被用来评估一个制药厂在沿海地区。评价结果表明,建筑结构的低的弱点,这是与调查结果一致,表明该方法适用于建筑结构工程的脆弱性在沿海地区。
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关键词:年代p一个n>建筑结构、chloride-induced腐蚀,腐蚀起始,混凝土保护层开裂时间,工程漏洞
<年代p一个n>引用:年代p一个n>气X,徐、刘Y和Lun P(2023)工程易损性评估的沿海地区建筑结构考虑腐蚀的影响。
收到:年代p一个n>20.22年11月24日;<年代p一个n>接受:年代p一个n>20.22年12月21日;
<年代p一个n>发表:年代p一个n>20.23年1月11日。
编辑:
<一个hr英孚="https://loop.frontiersin.org/people/973616/overview">瞿Chun-Xu一个>大连理工大学,中国审核:
<一个hr英孚="https://loop.frontiersin.org/people/1126972/overview">道江一个>汕头大学,中国<年代p一个n>版权年代p一个n>©2023气,徐、刘和Lun。这是一个开放分布式根据文章<一个rel="license" href="http://creativecommons.org/licenses/by/4.0/" target="_blank">知识共享归属许可(CC)。一个>使用、分发或复制在其他论坛是允许的,提供了原始作者(年代)和著作权人(s)认为,最初发表在这个期刊引用,按照公认的学术实践。没有使用、分发或复制是不符合这些条件的允许。
<年代p一个n>*通信:年代p一个n>Xiaona气,<一个hr英孚="mailto:tiann5211@163.com">tiann5211@163.com一个>