A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ein einheitliches Bemessungsverfahren zur Harmonisierung von Sicherheitsnachweisen in der Geotechnik
In Europe, geotechnical designs are permissible according to EN 1997 using different design approaches that differ in the factorization of parameters with partial safety factors. EN 1997 further indicates non-normative recommendations on the partial safety factors as well as calculating models for geotechnical actions and ground resistances. Neither is there a standardized integral procedure to determine representative values of geotechnical parameters. Every country in Europe can thus determine the design approach nationally with its corresponding partial safety factors as well as the calculation models and procedures to determine representative values of geotechnical parameters. This leads to different levels of safety with regard to geotechnical design within Europe. The aim of this work is the formulation of a recommendation for geotechnical design, that consists of a harmonized design approach with corresponding partial safety factors, the calculation models for geotechnical actions und ground resistances as well as a model to determine representative geotechnical parameters. Following an analysis of impact factors on geotechnical design, this study will suggest a design approach indicating one partial safety factor each for the actions, the actions effects, the ground resistances and the geotechnical parameters. In order to determine the partial safety factors and to formulate a model to select representative values for geotechnical parameters, the uncertainties in the selection of parameters occurring in geotechnical design as well as the uncertainty of the calculation models are examined. By doing so, this work will further enlarge upon their modelling with stochastic parameters such as the mean values and the coefficient of variation. The formulated model to select representative values for geotechnical parameters is based on a statistic model and takes into account the uncertainties by means of the coefficient of variation. In the determination of partial safety factors, reliability calculations for typical geotechnical applications are carried out with different boundary conditions and limit states. Additionally, to the resulting partial safety factors, a minimum number of samples for the determination of representative values for geotechnical parameters will be presented as an outcome of this work. Finally, the applicability and acceptance of the formulated recommendation for geotechnical design in Europe will be presented with the help of worked examples. The comparison with the designs of European colleagues and experts applied to selected geotechnical applications shows that the newly formulated recommendation can yield to an average safety level of design results.
Ein einheitliches Bemessungsverfahren zur Harmonisierung von Sicherheitsnachweisen in der Geotechnik
In Europe, geotechnical designs are permissible according to EN 1997 using different design approaches that differ in the factorization of parameters with partial safety factors. EN 1997 further indicates non-normative recommendations on the partial safety factors as well as calculating models for geotechnical actions and ground resistances. Neither is there a standardized integral procedure to determine representative values of geotechnical parameters. Every country in Europe can thus determine the design approach nationally with its corresponding partial safety factors as well as the calculation models and procedures to determine representative values of geotechnical parameters. This leads to different levels of safety with regard to geotechnical design within Europe. The aim of this work is the formulation of a recommendation for geotechnical design, that consists of a harmonized design approach with corresponding partial safety factors, the calculation models for geotechnical actions und ground resistances as well as a model to determine representative geotechnical parameters. Following an analysis of impact factors on geotechnical design, this study will suggest a design approach indicating one partial safety factor each for the actions, the actions effects, the ground resistances and the geotechnical parameters. In order to determine the partial safety factors and to formulate a model to select representative values for geotechnical parameters, the uncertainties in the selection of parameters occurring in geotechnical design as well as the uncertainty of the calculation models are examined. By doing so, this work will further enlarge upon their modelling with stochastic parameters such as the mean values and the coefficient of variation. The formulated model to select representative values for geotechnical parameters is based on a statistic model and takes into account the uncertainties by means of the coefficient of variation. In the determination of partial safety factors, reliability calculations for typical geotechnical applications are carried out with different boundary conditions and limit states. Additionally, to the resulting partial safety factors, a minimum number of samples for the determination of representative values for geotechnical parameters will be presented as an outcome of this work. Finally, the applicability and acceptance of the formulated recommendation for geotechnical design in Europe will be presented with the help of worked examples. The comparison with the designs of European colleagues and experts applied to selected geotechnical applications shows that the newly formulated recommendation can yield to an average safety level of design results.
Ein einheitliches Bemessungsverfahren zur Harmonisierung von Sicherheitsnachweisen in der Geotechnik
A standardised design method to harmonised safety design approaches in geotechnis
Tafur Bances, Elias Manuel (author) / Ziegler, Martin (tutor) / Witt, Karl Josef (tutor)
2020-01-01
1 Online-Ressource (XXXII, 311 Seiten) : Illustrationen, Diagramme pages
Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2020; Aachen 1 Online-Ressource (XXXII, 311 Seiten) : Illustrationen, Diagramme (2020). = Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2020
Miscellaneous
Electronic Resource
German
Ein einheitliches Bemessungsverfahren zur Harmonisierung von Sicherheitsnachweisen in der Geotechnik
| TIBKAT | 2020
Zur Harmonisierung der Bemessungsverfahren
| Online Contents | 1993
Zur Harmonisierung der Bemessungsverfahren
| Tema Archive | 1993