特定场地下土工构筑物的几何可靠性分析
Geometric reliability analysis of geotechnical structures at a specific site
查看参考文献35篇
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文摘
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针对特定场地下土工构筑物的正常使用极限状态,采用近年发展的几何可靠性方法计算了多种构筑物的可靠度指标。考虑同一场地下的钻孔灌注桩、抗浮锚杆和CFG桩单桩加载变形测试曲线的离散性,各曲线回归参数呈现差异并可作为随机变量,进而探讨了各曲线回归参数间的相关性及联合分布特性。基于这些回归参数的联合发散概率密度等值线,即随机变量刚好达到极限承载能力状态,该几何可靠性算法可在随机变量的原始空间求得土工构筑物的可靠度指标。通过比对该几何可靠度指标与常规的一次可靠性算法成果,验证了该几何可靠性计算技术的可行性。计算表明,几何可靠性评价模型实施简便,易于被工程技术人员接受。 |
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其他语种文摘
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According to the limit state of geotechnical structures at a specific site under normal conditions of use,the reliability index of various structures is calculated by geometric reliability method that developed in recent years.At the same site,considering the discreteness of load-displacement curves of bored piles,anti-floating anchors and single CFG piles,the regression parameters of these curves show differences and can be regarded as random variables.The correlation and joint distribution characteristics of the site-specific regression parameters are discussed.Based on the joint divergence probability density contour (PDC) of these regression parameters,which means the random variables just reach the critical state of limit bearing capacity,the reliability index of geotechnical structures is calculated by the geometric reliability algorithm in the original space of random variables.The feasibility of geometric reliability algorithm is verified by comparing the geometric reliability index with the results calculated by conventional first-order reliability method.The results show that the geometric reliability evaluation model is simple to implement and can be easily accepted by engineers and technicians. |
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来源
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岩土力学
,2020,41(6):2070-2080 【核心库】
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DOI
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10.16285/j.rsm.2019.1355
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关键词
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离散性
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概率密度
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拟合优度
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承载能力
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几何可靠性
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地址
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1.
河北大学建筑工程学院, 河北, 保定, 071002
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北京市建筑工程研究院, 北京, 100039
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北京市建设工程质量第一检测所有限责任公司, 北京, 100039
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-7598 |
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学科
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建筑科学 |
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基金
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河北省自然科学基金面上项目
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河北省高等学校科学技术研究项目
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河南一省一校专项资助
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文献收藏号
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CSCD:6783255
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参考文献 共
35
共2页
|
|
1.
Tandjiria V. Reliability analysis of laterally loaded piles using response surface methods.
Structural Safety,2000,22(4):335-355
|
被引
6
次
|
|
|
|
|
2.
辛军霞. 基于Copula函数的CFG桩复合地基载荷-变形曲线的概率分析.
岩土力学,2016,37(增刊1):424-434
|
被引
4
次
|
|
|
|
|
3.
Wu X Z. Assessing the correlated performance functions of an engineering system via probabilistic analysis.
Structural Safety,2015,52(A):10-19
|
被引
3
次
|
|
|
|
|
4.
Hasofer A A. Exact and invariant second moment code format.
Journal of Engineering Mechanics,1974,100(1):111-121
|
被引
135
次
|
|
|
|
|
5.
Low B K. Efficient reliability evaluation using spreadsheet.
Journal of Engineering Mechanics,1997,123(7):749-752
|
被引
20
次
|
|
|
|
|
6.
Rackwitz R. Structural reliability under combined random load sequences.
Computers and Structures,1978,9:489-494
|
被引
128
次
|
|
|
|
|
7.
Robinson D G.
A survey of probabilistic methods used in reliability risk and uncertainty analysis,1998:34
|
被引
1
次
|
|
|
|
|
8.
Low B K. Efficient spreadsheet algorithm for first-order reliability method.
Journal of Engineering Mechanics,2007,133(12):1378-1387
|
被引
25
次
|
|
|
|
|
9.
贡金鑫. 原始随机空间内结构可靠度的分析方法.
水利学报,1999(5):30-34
|
被引
7
次
|
|
|
|
|
10.
Wu X Z. Geometric reliability analysis applied to wave overtopping of sea defences.
Ocean Engineering,2015,109:287-297
|
被引
3
次
|
|
|
|
|
11.
Winterstein S R. Environmental parameters for extreme response: inverse FORM with omission factors.
Proceedings of the International Conference on Structural Safety and Reliability,1993
|
被引
1
次
|
|
|
|
|
12.
符圣聪. 地震时埋设管道可靠度的实用算法.
特种结构,2004,21(1):36-40
|
被引
2
次
|
|
|
|
|
13.
吴振君. 边坡可靠度分析的一种新的优化求解方法.
岩土力学,2010,31(3):713-718
|
被引
9
次
|
|
|
|
|
14.
R Development Core Team.
R: a language and environment for statistical computing,2018
|
被引
46
次
|
|
|
|
|
15.
Wu X Z. Implementing statistical fitting and reliability analysis for geotechnical engineering problems in R.
Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards,2017,11(2):173-188
|
被引
1
次
|
|
|
|
|
16.
Ayyub B M.
Probability, statistics, and reliability for engineers and scientists. 3rd ed,2013
|
被引
1
次
|
|
|
|
|
17.
Wu X Z. Probabilistic slope stability analysis by a Copula-based sampling method.
Computational Geosciences,2013,17(5):739-755
|
被引
7
次
|
|
|
|
|
18.
Ang A H S.
Probability concepts in engineering planning and design. volume II, decision, risk and reliability,1990
|
被引
1
次
|
|
|
|
|
19.
Phoon K K. Serviceability limit state reliability-based design.
Reliability-Based Design in Geotechnical Engineering: Computations and Applications,2008:344-383
|
被引
2
次
|
|
|
|
|
20.
Baecher G B.
Reliability and statistics in geotechnical engineering,2003
|
被引
32
次
|
|
|
|
|
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