한계상태설계법에 의한 기존 강박스거더교의 내하력 환산

국문 초록 (Abstract)

교량 시설물은 사회적으로 중요한 기반 시설물로서 공용기간 동안 안전한 관리가 중요하다. 도로교량의 많은 비율을 차지하고 있는 강박스거더교량의 경우 허용응력설계법으로 설계되고 내하력이 평가되어 왔으나, 최근 한계상태설계법으로 설계기준이 변경되었음에도 불구하고 내하력 평가에서는 아직까지 허용응력법을 대부분 사용하고 있는 실정이다. 이에 이 연구에서는 2 가지 설계 방법을 이용하여 다수의 교량에 대한 내하율 평가 결과를 비교하고, 기존의 허용응력법에 의한 내하력을 한계상태법에 의한 내하력으로 환산하는 방법을 모색하고자 하였다. 이 결과는 추후 교량을 관리함에 있어 보강 필요성 판단 및 한계상태법에 의한 내하력 평가에 기초자료로 활용될 수 있을 것으로 기대된다.

다국어 초록 (Multilingual 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

목차 (Table of Contents)

• Abstract
• 1. 서 론
• 2. 내하력 평가
• 2.1 내하력 평가 방법
• 2.2 내하율 평가
• 3. 내하력 환산
• 3.1 정모멘트부 내하율
• 3.2 부모멘트부 내하율
• 3.3 내하력 환산
• 4. 결 론
• References
• 요 지

참고문헌 (Reference)

• 1 Ministry of Land, Infrastructure and Transport, "Steel Structure Design Specification"
• 2 AASHTO, "Manual for Condition Evaluation and Load and Resistance factor Rating (LRFR) of Highway Bridges"
• 3 NCHRP-National Cooperative Highway Research Program, "Manual for Condition Evaluation and Load Rating of Highway Bridges using Load and Resistance Factor Philosophy" 2001
• 4 Korea Infrastructure Safety and Technology Corporation, "Improving for In-Depth Safety Inspection of Bride and Calculation Method of Load Carrying Capacity, Vol. 2" 1999
• 5 Korea Expressway Corporation, "Development of Reliability-Based Safety Assessment Guideline of Expressway Bridges" 10-12, 2013
• 6 Korea Infrastructure Safety and Technology Corporation, "Detailed Guideline for Safety Inspection and In-Depth Safety Inspection"
• 7 Busan Regional Office of Construction Management, "Bridge18-Bridge20 Initial Safety Inspection Report" 133-299, 2006
• 8 Korea Road., "Bridge17 In-Depth Safety Inspection Report" 79-144, 2012
• 9 Seoul Metropolitan Government, "Bridge16 Initial Safety Inspection Report" 67-241, 2001
• 10 Busan Metropolitan City, "Bridge09-Bridge15 Initial Safety Inspection Report" 2014
• 11 Busan Metropolitan City, "Bridge01-Bridge08, In-Depth Safety Inspection Report" 2014
• 12 Korea Road & Transportation Association, "Bridge Design Specification"
• 13 Korea Road., "Bridge Design Specification" 2016
• 14 Lee, Yeong Il, "An Improved Evaluation Method of Load-Carrying-Capacity for Highway Bridges Based on Field Test Data" Korea Maritime and Ocean University 2015