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http://dx.doi.org/10.7843/kgs.2014.30.8.5

Reliability Analysis Modeling for LRFD Design of Bridge Abutments  

Eom, Jun-Sik (Dept. of Civil Engrg., Sangji Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.8, 2014 , pp. 5-11 More about this Journal
Abstract
The objective of this paper is to develop a rational reliability analysis procedure for the LRFD design provisions of bridge substructures. A bridge abutments is considered in this study. The reliability analysis is applied to determine the relationship between the major design parameters for bridge abutment and reliability index. The considered load components include dead load, vertical and horizontal earth pressure, earth surcharge, and vehicle live load. Several limit states are considered: foundation bearing capacity, sliding, and overturning. The analysis results show that the most important parameter in the reliability analysis is the effective stress friction angle of the soil. The reliability indices are calculated using Monte Carlo simulations for a selected bridge abutment. The results of the sensitivity analysis indicate that reliability index is most sensitive with regard to resistance factor and horizontal earth pressure factor.
Keywords
Reliability analysis; Code calibration; Bridge abutment;
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