Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation
Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation
复制标题
层次分析法结合模糊综合评判法路基轻质蜂窝混凝土耐久性评价
DOI：
10.1155/2019/4915870
复制
发表时间：
2019-08-21
影响因子：
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通讯作者：
Hong, Baoning
中科院分区：
文献类型：
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作者：
Liu, Xin;Ni, Chengwei;Hong, Baoning
为提高轻质蜂窝混凝土在路基工程中的应用，对轻质蜂窝混凝土的耐久性及其评价方法进行了研究。将层次分析法（AHP）与模糊综合评判法（FCE）相结合，建立了耐久性评估方法。主要评估过程如下。首先，根据LCC的物理力学特性，从初步设计、施工工艺、建成后的运营管理等方面选取影响因素。建立了影响因素的分级标准。其次，建立了目标层、准则层、指标层的多层次评价模型。层次分析法确定了较低层次相对于较高层次的有效权重。通过对判断矩阵的一致性检验，证明了影响因素影响权重分配的合理性。再次，建立适合各影响因素的隶属函数，计算隶属度。最后，以广东省某高速公路第三标段为工程实例，验证了层次分析法与模糊综合评判相结合的实用性和可靠性。
The durability of lightweight cellular concrete (LCC) and the corresponding assessment method are studied in this paper to improve the utilization of LCC in subgrade construction engineering. The durability assessment method is established by combining the analytic hierarchy process (AHP) with fuzzy comprehensive evaluation (FCE). The main assessment processes are as follows. Firstly, based on the physical and mechanical properties of LCC, the influencing factors are selected in terms of preliminary design, construction technology, and operation and management after completion of construction. The grading standard of influencing factors is established as well. Secondly, a multilevel assessment model with targets level, criteria level, and indexes level is established. AHP determines the effective weight of the lower level relative to the upper level. The consistency check of the judgment matrix is conducted to prove the rationality of the distribution of influencing factors’ effect weight. Thirdly, the membership function which is suitable for each influencing factor is built to calculate the membership degree. Besides, the practicality and reliability of AHP combined with FCE are demonstrated through a practical engineering case, which is the third section of a highway in Guangdong Province, China.