Geotechnical Safety Network

Task group 3

Reliability benchmarking

 

Geotechnical reliability analysis is a unique analysis that can sometimes be very different from structural reliability analysis. Most popular reliability methods were developed in the context of structural analysis. It is a question if these methods are ideal for geotechnical problems. The main goal of this task group is therefore to provide an international platform for researchers to share experiences in implementing reliability methods and in characterizing geotechnical uncertainties by analyzing a common set of “benchmark problems”. It is hoped that through these benchmark problems, the cons and pros of various reliability methods can be identified, and standard procedures for geotechnical reliability analysis can be established.

Benchmark 1             problem definition               matlab code for the performance function

Benchmark 2             problem definition               matlab code for the performance function             paper for the special session

Benchmark 3             problem definition               matlab code for the performance function

Benchmark 4             problem definition               matlab code for the performance function

Benchmark 5             problem definition                                                                                       paper for the special session

Benchmark 6             problem definition                                                                                       paper for the special session

Benchmark 7             problem definition                                                                                       paper for the special session

Benchmark 8             problem definition

If you are interested in submitting a benchmark problem, please follow the format in the benchmark template and send the file to JY Ching.

 

PROB_LIB (by KK Phoon)

 

PROB_LIB is freely available for teaching, academic research, and other non-commercial personal use. The source code and documentation are copyrighted by the developer, and may not be redistributed or placed on public Web servers without permission. The software is provided "as is" with no warranty.

 

 

Documentation given in Chapter 1, Reliability-Based Design in Geotechnical Engineering: Computations and Applications, Taylor & Francis, 2008

http://www.eng.nus.edu.sg/civil/people/cvepkk/jacket_cover_396301_web.jpg

 

 

Chapter 1 Errata

Chapter_1_Errata.pdf

 

 

Random dimension reduction using spectral decomposition

eigendecomp.m

First-order reliability method

FORM.m

Calculation of Hermite coefficients using stochastic collocation method

herm_coeffs.m

Calculation of Hermite roots using polynomial fit

herm_roots.m

Simulation of Johnson distributions

johnson.m

Reliability analysis of Load & Resistance Factor Design (LRFD)

LRFD.m

Objective function for FORM

objfun.m

Definition of performance function, P

Pfun.m

Simulation of normal random process using the two-sided power spectral density function, S(f)

ranprocess.m

Second-order reliability method

SORM.m

Subset Markov Chain Monte Carlo method

subset.m

Simulation of correlated non-normal random variables using translation method

translation.m