震后建筑应急加固方案优选研究
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摘要
汶川地震后,部分建筑发生了不同程度的破坏,可以通过加固后继续使用;要使抗震救灾工作能够顺利进行,很多建筑需要进行应急加固。综合考虑地震震区的各种影响因素,选择最优的加固方案是值得研究的关键问题。模糊层次分析法是基于模糊决策理论的实用层次分析法,它是对层次分析法的进一步优化,能够用于震后建筑应急加固方案优选,可减少方案优化的工作量和时间。分析总结了影响方案选择的各种因素,利用层次分析法建立递阶层次结构,构造判断矩阵,分别求出了影响因素的权重;运用模糊多属性决策问题的方法,计算模糊决策矢量,得到了加固方案优劣排序;结合工程实例证明了模糊层次分析法在震后建筑应急加固方案优选中,具有良好的可行性和实用性。
Some buildings have been damaged after Wen Chuan earthquake,but they can be used after strengthening.To ensure the smooth progress of earthquake relief,many buildings should be strengthened quickly.Taking into account all factors in earthquake zone,it becomes a worthy research to select the optimal strengthening scheme.Fuzzy analytic hierarchy process is a practical analytic hierarchy process based on fuzzy-decision theory.It can be used for emergency strengthening scheme optimization and can reduce the workload and time.Firstly all factors were analyzed and summarized,and hierarchy structure and judgment matrix were established through analytic hierarchy process,thus the various weights of the factor are found respectively;Then by using fuzzy multi-attribute decision making method to calculate the fuzzy decision vector,the sequence of emergency strengthening scheme is listed.At last,a project example is given to prove the good feasibility and practicality of the proposed scheme optimization.
Some buildings have been damaged after Wen Chuan earthquake,but they can be used after strengthening.To ensure the smooth progress of earthquake relief,many buildings should be strengthened quickly.Taking into account all factors in earthquake zone,it becomes a worthy research to select the optimal strengthening scheme.Fuzzy analytic hierarchy process is a practical analytic hierarchy process based on fuzzy-decision theory.It can be used for emergency strengthening scheme optimization and can reduce the workload and time.Firstly all factors were analyzed and summarized,and hierarchy structure and judgment matrix were established through analytic hierarchy process,thus the various weights of the factor are found respectively;Then by using fuzzy multi-attribute decision making method to calculate the fuzzy decision vector,the sequence of emergency strengthening scheme is listed.At last,a project example is given to prove the good feasibility and practicality of the proposed scheme optimization.
引文
[1]陈肇元,钱稼茹.汶川地震建筑震害调查与灾后重建分析报告[M].北京:中国建筑工业出版社,2008.
[2]同济大学土木工程防灾国家重点实验室.汶川地震震害[M].上海:同济大学出版社,2008.
[3]GB 50367—2006混凝土结构加固设计规范[S].
[4]JGJ 116—2009建筑抗震加固技术规程[S].
[5]Satty T L.Modeling unstructured decision problems:atheory of analytical hierarchies[C]//Proceedings of thefirst International Conference on MathematicalModeling.Rolla:University of Missoure Rolla,1977.
[6]Zadeh L A.Fuzzy sets[J].Information and Control,1965:8(3):338-353.
[7]张鹏.桥梁加固方案的层次分析优选法[J].公路交通科技,2006,23(7):92-95.
[8]郝伟.模糊层次分析法在桥梁加固方案优选中的应用[J].建筑管理现代化,2009 23(4):358-361.
[9]周建庭,谭兴丰,何寿奎,等.模糊层次分析法在石拱桥加固方案优选中的应用研究[J].公路交通科技,2008,25(1):111-115.
[10]王莲芬,许树柏.层次分析法引论[M].北京:中国人民大学出版社,1990.
[11]Satty T L.The Analytic Hierarchy Process[M].NewYork:McGraw-Hill,1980.
[12]徐玖平,吴巍.多属性决策的理论与方法[M].北京:清华大学出版社,2006.
[13]张跃,邹寿平,宿芬,等.模糊数学方法及其应用[M].北京:煤炭工业出版社,1992.
[2]同济大学土木工程防灾国家重点实验室.汶川地震震害[M].上海:同济大学出版社,2008.
[3]GB 50367—2006混凝土结构加固设计规范[S].
[4]JGJ 116—2009建筑抗震加固技术规程[S].
[5]Satty T L.Modeling unstructured decision problems:atheory of analytical hierarchies[C]//Proceedings of thefirst International Conference on MathematicalModeling.Rolla:University of Missoure Rolla,1977.
[6]Zadeh L A.Fuzzy sets[J].Information and Control,1965:8(3):338-353.
[7]张鹏.桥梁加固方案的层次分析优选法[J].公路交通科技,2006,23(7):92-95.
[8]郝伟.模糊层次分析法在桥梁加固方案优选中的应用[J].建筑管理现代化,2009 23(4):358-361.
[9]周建庭,谭兴丰,何寿奎,等.模糊层次分析法在石拱桥加固方案优选中的应用研究[J].公路交通科技,2008,25(1):111-115.
[10]王莲芬,许树柏.层次分析法引论[M].北京:中国人民大学出版社,1990.
[11]Satty T L.The Analytic Hierarchy Process[M].NewYork:McGraw-Hill,1980.
[12]徐玖平,吴巍.多属性决策的理论与方法[M].北京:清华大学出版社,2006.
[13]张跃,邹寿平,宿芬,等.模糊数学方法及其应用[M].北京:煤炭工业出版社,1992.
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