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Title |
A Conversion of Load Carrying Capacity for Existing Steel Box Girder Bridge Based on Limit State Design Method
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Authors |
노동오(Dong-Oh Noh) ; 경갑수(Kab-Soo Kyung) ; 박진은(Jin-Eun Park) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.6.089 |
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Keywords |
허용응력설계법 ; 한계상태설계법 ; 내하력 ; 내하율 ; 강박스거더교 Allowable Stress Design ; Limit State Design ; Load Carrying Capacity ; Rating Factor ; Steel Box Girder Bridge |
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Abstract |
Bridge structures are a socially important infrastructure and safety management of bridges during the public service period is important. Steel box girder bridges, which account for a large percentage of road bridges, have been designed by allowable stress design method(ASD) and load carrying capacity have been evaluated using ASD. Although design specification has recently been changed to limit state design method(LSD), in most cases, ASD is still used for load carrying capacity evaluation. In this study, the two design methods were used to compare the results of a load rating factor evaluation on a number of bridges, and we are going to find out how to convert the existing rating factor by ASD into rating factor by LSD. The results of this study are expected to can be used as a basis for determining the need for reinforcement and evaluating load carrying capacity by LSD in bridge maintenance
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