Methodology for Calculation of Bridge Safety Factor in Lithuania

EasyChair Preprint 5140

Abstract

The paper reviews the United States and Slovenian safety factor calculation methodologies and proposes a method for more accurate estimation of residual strength of bridges designed and built in Lithuania. For more detailed analysis, the main parameters and defects directly affecting the strength of the bridges were analysed in detail. In addition, the flows of heavy vehicles, which have significantly increased for previously designed bridges, were assessed. This article proposes to calculate the dynamic factor of bridges not according to the empirical formulas used in the United States and Slovenian safety factor calculation methodologies. The findings of the bridge dynamic tests conducted in Lithuania showed that the parameter strongly depends on the smoothness and damage of carriageway wearing surface. In order to evaluate the suitability of the Lithuanian bridge safety factor calculation methodology proposed in this article, a real bridge was selected. Its safety factors calculated according to the above-mentioned and proposed methodology and the results obtained were compared.

Keyphrases: dynamic factor, resistance, safety factor

@booklet{EasyChair:5140,
  author    = {Saulius Zadlauskas and Mindaugas Augonis},
  title     = {Methodology for Calculation of Bridge Safety Factor in Lithuania},
  howpublished = {EasyChair Preprint 5140},
  year      = {EasyChair, 2021}}