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由于周围环境、使用年限等对建筑结构的影响,一些既有建筑结构在安全、适用和耐久性等方面已经不能满足要求,所以需要对结构进行加固改造。在进行既有建筑结构加固改造之前,需要正确地、客观地对既有建筑结构的可靠性进行评价。为充分考虑到影响可靠性因素间的相关性,本研究引入网络分析法(ANP)进行权重的计算,然后建立影响建筑结构可靠性因素的模糊隶属矩阵,从而对既有建筑结构的可靠性大小做出有效的评价。最后以某既有混凝土结构进行实例分析。结果表明:该评价模型能够对既有混凝土结构的可靠性进行较准确的评价。
Due to the influence of the surrounding environment, the service life and so on on the building structure, some existing building structures can not meet the requirements in terms of safety, application and durability, so the structure needs to be reinforced and rebuilt. Before carrying out the reinforcement and reconstruction of the existing building structure, the reliability of the existing building structure needs to be correctly and objectively evaluated. In order to take full account of the correlation between the factors that affect the reliability, this study introduces the network analysis (ANP) to calculate the weight, and then establishes the fuzzy membership matrix that affects the reliability of the building structure, thus the reliability of the existing building structure Make a valid assessment. Finally, an existing example of concrete structure analysis. The results show that this model can evaluate the reliability of existing concrete structures more accurately.