基于不同类型响应面的生土窑居可靠度分析
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摘要
基于有限元强度折减法,提出"富裕安全系数"作为生土窑居承载能力极限状态的标准;采用二次多项式和RBF神经网络响应面法,对河南三门峡陕县的生土窑居的可靠度进行了研究。研究结果表明:两种响应面法所得的可靠指标、验算点接近,均适用于生土窑居的可靠度研究;该地区生土窑居可靠性较高,黄土的高黏聚力是营造生土窑居的天然有利条件。文中所述方法实现了功能函数为隐式情况下的生土窑居可靠度分析。
Based on finite element strength reduction method,excess safety factor was suggested as the standard of ultimate limit state of earth-sheltered dwellings.The reliability of earth-sheltered dwellings in Sanmenxia city Henan province was investigated using the quadratic polynomial Response Surface Method(RSM) and RBF response surface method.The result shows that,the reliability index and checking point from two kinds of response surface methods are very close,and they are suitable for the reliability analysis of earth-sheltered dwellings,the reliability of the earth-sheltered dwellings in this area is fairly high,and the high cohesion of loess has natural advantage for the construction of earth-sheltered dwellings.The method in this paper carried out the reliability analysis of earth-sheltered dwellings without performance function.
Based on finite element strength reduction method,excess safety factor was suggested as the standard of ultimate limit state of earth-sheltered dwellings.The reliability of earth-sheltered dwellings in Sanmenxia city Henan province was investigated using the quadratic polynomial Response Surface Method(RSM) and RBF response surface method.The result shows that,the reliability index and checking point from two kinds of response surface methods are very close,and they are suitable for the reliability analysis of earth-sheltered dwellings,the reliability of the earth-sheltered dwellings in this area is fairly high,and the high cohesion of loess has natural advantage for the construction of earth-sheltered dwellings.The method in this paper carried out the reliability analysis of earth-sheltered dwellings without performance function.
引文
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[13]张永兴,胡居义,何青云,等.基于强度折减法小净距隧道合理净距的研究[J].水文地质工程地质,2006(3):64-67.Zhang Yongxin,Hu Juyi,He Qingyan,et al.On ra-tional clear spacing of tunnel with small clear spacingbased on strength reduction method[J].Hydrogeolo-gy and Engineering Geology,2006,(3):64-67.(inChinese)
[14]肖强,郑颖人,叶海林.静力无衬砌黄土隧洞稳定性探讨[J].地下空间与工程学报,2010,6(6):1136-1141.Xiao Qiang,Zheng Yingren,Ye Hailin.Stability a-nalysis of static unlined loess tunnel[J].ChineseJournal of Underground Space and Engineering,2010,6(6):1136-1141.(in Chinese)
[15]程选生,田瑞瑞,王俊岭,等.大跨度无衬砌蛋形黄土隧道围岩结构的静力和地震动稳定分析[J].土木工程学报,2010,43(S1):582-587.Cheng Xuansheng,Tian Ruirui,Wang Junling,et al.Static and seismic stability analysis of soil mass sur-rounding tunnel about large-span unlined egg-shapedloess tunnel[J].China Civil Engineering Journal,2010,43(S1):582-587.(in Chinese)
[16]张红,郑颖人,杨臻,等.黄土隧洞支护结构设计方法探讨[J].岩土力学,2009,30(S2):473-478.Zhang Hong,Zheng Yingren,Yang Zhen,et al.Ex-ploration of design methods of support structure in lo-ess tunnel[J].Rock and Soil Mechanics,2009,30(S2):473-478.(in Chinese)
[17]Griffiths D V,Lane P A.Slope stability analysis byfinite elements[J].Geotechnique,1999,49(3):387-403.
[18]张明.结构可靠度分析:方法与程序[M].北京:科学出版社,2009.Zhang Ming.Structural reliability analysis:methodsand procedures[M].Beijing:Science Press,2009.(in Chinese)
[2]陈国兴,张克绪,谢君斐.黄土崖窑洞抗震性能分析[J].哈尔滨建筑工程学院学报,1995,28(1):15-22.Chen Guoxin,Zhang Kexu,Xie Junfei.Seismic per-formance analysis of the cave dwelling on the loessprecipice[J].Journal of Harbin Architecture&CivilEngineering Institute,1995,28(1):15-22.(inChinese)
[3]桂劲松,康海贵.结构可靠度分析的响应面法及其Matlab实现[J].计算力学学报,2004,21(6):683-687.Gui Jinsong,Kang Haigui.Response surface methodfor structural reliability analysis and its realizationwith Matlab[J].Chinese Journal of ComputationalMechanics,2004,21(6):683-687.(in Chinese)
[4]蒋向华,杨晓光,王延荣.结构可靠度逐步逼近径向基神经网络响应面法[J].航空动力学报,2008,23(1):26-31.Jiang Xianghua,Yang Xiaoguang,Wang Yanrong.An iterative RBF ANN response surface method forstructural reliability analysis[J].Journal of Aero-space Power,2008,23(1):26-31.(in Chinese)
[5]张崎.基于Kriging方法的结构可靠性分析及优化设计[D].大连:大连理工大学,2005.Zhang Qi.Structural reliability analysis and optimiza-tion based on Kriging technique[D].Dalian:DalianUniversity of Technology,2005.(in Chinese)
[6]Bucher C G,Bourgund U.A fast and efficient re-sponse surface approach for structural reliability prob-lems[J].Structural Safety,1990,7(1):57-66.
[7]粟洪,程进.神经网络技术在预应力混凝土桥梁可靠度分析中的应用[J].结构工程师,2009,25(2):71-76.Su Hong,Cheng Jin.Application of neural net workin reliability analysis of prestressed concrete bridges[J].Structural Engineers,2009,25(2):71-76.(in Chinese)
[8]窦毅芳,刘飞,张为华.响应面建模方法的比较分析[J].工程设计学报,2007,14(5):359-363.Dou Yifang,Liu Fei,Zhang Weihua.Research oncomparative analys is of response surface methods[J].Journal of Engineering Design,2007,14(5):359-363.(in Chinese)
[9]席永慧,项宝.基于强度折减的有限差分法分析加筋土桥台的稳定性[J].结构工程师,2009,25(3):47-51.Xi Yonghai,Xiang Bao.Stability analysis on geosyn-thetic reinforced soil abutments by limited differencesmethod[J].Structural Engineers,2009,25(3):47-51.(in Chinese)
[10]童丽萍,韩翠萍.传统生土窑洞的土拱结构体系[J].施工技术,2008,37(6):113-115,118.Tong Liping,Han Cuiping.Earth-arched structuralsystems of primitive earth-sheltered dwelling[J].Construction Technology,2008,37(6):113-115,118.(in Chinese)
[11]任侠.黄土窑洞弹塑性有限元分析[J].兰州铁道学院学报,1993,12(4):1-7.Ren Xia.Elasto-plastic finite element analysis of lo-ess cave dwellings[J].Journal of Lanzhou RailwayInstitute,1993,12(4):1-7.(in Chinese)
[12]刘祖典.黄土力学与工程[M].西安:陕西科学技术出版社,1996.Liu Zudian.Mechanics and engineering of loess[M].Xi’an:Scientific and Technical Press ofShanxi,1996.(in Chinese)
[13]张永兴,胡居义,何青云,等.基于强度折减法小净距隧道合理净距的研究[J].水文地质工程地质,2006(3):64-67.Zhang Yongxin,Hu Juyi,He Qingyan,et al.On ra-tional clear spacing of tunnel with small clear spacingbased on strength reduction method[J].Hydrogeolo-gy and Engineering Geology,2006,(3):64-67.(inChinese)
[14]肖强,郑颖人,叶海林.静力无衬砌黄土隧洞稳定性探讨[J].地下空间与工程学报,2010,6(6):1136-1141.Xiao Qiang,Zheng Yingren,Ye Hailin.Stability a-nalysis of static unlined loess tunnel[J].ChineseJournal of Underground Space and Engineering,2010,6(6):1136-1141.(in Chinese)
[15]程选生,田瑞瑞,王俊岭,等.大跨度无衬砌蛋形黄土隧道围岩结构的静力和地震动稳定分析[J].土木工程学报,2010,43(S1):582-587.Cheng Xuansheng,Tian Ruirui,Wang Junling,et al.Static and seismic stability analysis of soil mass sur-rounding tunnel about large-span unlined egg-shapedloess tunnel[J].China Civil Engineering Journal,2010,43(S1):582-587.(in Chinese)
[16]张红,郑颖人,杨臻,等.黄土隧洞支护结构设计方法探讨[J].岩土力学,2009,30(S2):473-478.Zhang Hong,Zheng Yingren,Yang Zhen,et al.Ex-ploration of design methods of support structure in lo-ess tunnel[J].Rock and Soil Mechanics,2009,30(S2):473-478.(in Chinese)
[17]Griffiths D V,Lane P A.Slope stability analysis byfinite elements[J].Geotechnique,1999,49(3):387-403.
[18]张明.结构可靠度分析:方法与程序[M].北京:科学出版社,2009.Zhang Ming.Structural reliability analysis:methodsand procedures[M].Beijing:Science Press,2009.(in Chinese)
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