Reliability Analysis of Laterally Loaded Piles Involving Nonlinear Soil and Pile Behavior
Reliability Analysis of Laterally Loaded Piles Involving Nonlinear Soil and Pile Behavior
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DOI：
10.1061/(asce)1090-0241(2009)135:3(431
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发表时间：
2009-03
影响因子：
3.9
通讯作者：
C. Chan;B. Low
中科院分区：
文献类型：
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作者：
C. Chan;B. Low
提出了一种在通用电子表格平台中分析横向受荷桩的替代方法。数值计算过程耦合非线性桩抗弯刚度（Ep Ip）与非线性p-y分析。确定性研究，然后扩展到进行可靠性分析，这反映了不确定性和相关结构的基本参数。基于随机变量原始空间中扩展等效椭球的另一种直观观点来评估可靠性指标。本文研究了两种破坏模式：挠度和弯矩，并考虑了非正态随机变量。土壤介质的空间变异性占通过将自相关模型。基于电子表格的可靠性方法也可以通过响应面法与独立程序相结合。从可靠性指标推断的故障概率同意与蒙特卡洛模拟。简单可靠的设计
An alternative approach of analyzing laterally loaded piles in the ubiquitous spreadsheet platform is presented. The numerical procedure couples nonlinear pile flexural rigidity ( Ep Ip ) with nonlinear p-y analysis. The deterministic study is then extended to carry out reliability analysis, which reflects the uncertainties and correlation structure of the underlying parameters. The reliability index is evaluated based on the alternative intuitive perspective of an expanding equivalent ellipsoid in the original space of the random variables. This paper investigates two modes of failure: deflection and bending moment, and considers non-normal random variables. Spatial variability of the soil medium is accounted for by incorporating an autocorrelation model. The spreadsheet-based reliability approach can also be coupled with stand-alone programs via the response surface method. The probabilities of failure inferred from reliability indices agree well with Monte Carlo simulations. Simple reliability-based de...