| 管片衬砌可靠度分析实用方法研究 |
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| 引用本文： | 黄清飞,袁大军,王梦恕. 管片衬砌可靠度分析实用方法研究[J]. 北京交通大学学报(自然科学版), 2009, 33(1) |
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| 作者姓名： | 黄清飞 袁大军 王梦恕 |
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| 作者单位： | 北京交通大学,土木建筑工程学院,北京,100044;北京交通大学,土木建筑工程学院,北京,100044;北京交通大学,土木建筑工程学院,北京,100044 |
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| 摘 要： | 由于盾构隧道管片衬砌结构形式的特殊性,可靠度分析中仅采用截面承载力极限状态方程作为功能函数不够全面,故文中提出管片可靠度分析应采用双功能函数,即增选管片裂缝宽度控制方程作为第二功能函数.考虑到随机变量的非正态分布和功能函数的高度非线性,常规一次二阶矩法精度较低,提出采用映射变换和二次二阶矩相结合的方法进行管片衬砌可靠度分析.实例表明:双功能函数相互补充,可保证结构的安全可靠,映射变换和二次二阶矩结合分析法清晰简便,能较好地解决功能函数高度非线性、随机变量非正态分布等问题.
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| 关 键 词： | 隧道衬砌 盾构 管片 可靠度分析 裂缝宽度 映射变换法 二次二阶矩法 |
Study on Utility Method of Reliability Analysis for Segment Lining |
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| HUANG Qingfei,YUAN Dajun,WANG Mengshu. Study on Utility Method of Reliability Analysis for Segment Lining[J]. JOURNAL OF BEIJING JIAOTONG UNIVERSITY, 2009, 33(1) |
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| Authors: | HUANG Qingfei YUAN Dajun WANG Mengshu |
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| Affiliation: | School of Civil Engineering;Beijing Jiaotong University;Beijing 100044;China |
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| Abstract: | Due to the particularity of structure style of segment lining for shield tunnel,it is not comprehensive just to take sectional bearing limit state formula as conventional performance function in reliability analysis,so this paper proposed that the reliability analysis for segment lining should adopts double performance functions:the control formula of segment crack width is supplemented as the other performance function.Considering the non-normal distribution of random variable and non-linearity of performa... |
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| Keywords: | tunnel linings shield tunnel segment lining reliability analysis crack width reflection transformation method Second order second-moment method |
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