Background to SANS 10160: Basis of structural design and actions for buildings and industrial structures

Retief, Johannes Verster; Dunaiski, Peter

doi:10.18820/9781920338176

Cited by 7 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…moderate consequences of failure is given as β t = 3.0 (4.0), as back-calibrated from existing practice by Milford (1988) and Kemp et al (1987), and later retained by Retief and Dunaiski (2009). Comparing this to the EN 1990(EN 2002 equivalent of β t = 3.8 (4.7), it is unlikely that simply adopting existing recommendations for developed countries would be appropriate for SA without considering the prevailing economic and societal preferences.…”

Section: Target Reliability For New Road Bridges In South Africamentioning

confidence: 99%

Target reliability for new road bridges in South Africa

Way¹,

Koker²,

Viljoen³

2022

J. S. Afr. Inst. Civ. Eng.

View full text Add to dashboard Cite

Currently, there are no recommendations of target reliability for new-build road bridges tailored to developing countries. Target reliabilities in existing international literature reflect the economic and social circumstances associated with developed countries and may not be economically or societally acceptable for South Africa. This research determines target reliability for new-build road bridges specifically for a South African context. Economic cost optimisation and a societal risk approach are considered. Cost optimisation considers the cost of safety and consequences of failure. The life quality index methodology is used to consider limits on target reliability from a societal risk perspective. Additionally, the effect of structural redundancy on target reliability in bridges is investigated. Target reliabilities from cost optimisation are shown to be slightly higher than those from SANS 10160-1 and correspond with those from ISO 2394:2015. Recommendations of annual target reliability for new-build road bridges in South Africa are proposed - a typical value of β = 4.2 is recommended. Societal limits on target reliability correspond with target reliability from cost optimisation for bridges with minor consequences of failure and do not govern new-build bridges in South Africa. Target reliability reduces with increasing measures of bridge redundancy; a means by which to consider the effect of structural redundancy on target reliability is also proposed.

show abstract

Section: Target Reliability For New Road Bridges In South Africamentioning

confidence: 99%

Target reliability for new road bridges in South Africa

Way¹,

Koker²,

Viljoen³

2022

J. S. Afr. Inst. Civ. Eng.

View full text Add to dashboard Cite

show abstract

Reliability Analysis of Modern Geotechnical Codes for the Limit State Design of Sheet Pile Structures Considering Parameter Uncertainties

Mattos

2022

Int. J. Geomech.

View full text Add to dashboard Cite

Assessment of reliability-based design of stable slopes

2019

View full text Add to dashboard Cite

The viability of applying reliability-based design in the limit equilibrium evaluation of slope stability is assessed. Two model slopes are designed according to the limit states specification of European standard EN 1997:2004 and reliability assessed using full Monte Carlo calculation with 106 trials. Comparison of these results with reliability estimates obtained via a spectrum of different analysis techniques, broadly grouped into first-order reliability methods (FORM) and performance function moment estimation methods, indicates that FORM-based techniques are superior, with a first-order response surface method found to provide the best combination of accuracy, stability, and speed of convergence. In this way, accurate reliability indices for nonclosed form problems of the nature considered here can be obtained within 20–30 function calls, depending on the number of free parameters and required precision.

show abstract

Background to SANS 10160: Basis of structural design and actions for buildings and industrial structures

Cited by 7 publications

References 0 publications

Target reliability for new road bridges in South Africa

Target reliability for new road bridges in South Africa

Reliability Analysis of Modern Geotechnical Codes for the Limit State Design of Sheet Pile Structures Considering Parameter Uncertainties

Assessment of reliability-based design of stable slopes

Contact Info

Product

Resources

About