서울대교...1 1. 서론...5 1.1 조사목적...5 1.2 구조형식과 제원...5 1.3 현황 및 취약부분...6 1.3.1 상부구조...6 1.3.2 하부구조...11 2. 응력측정...14 2.1 측정시기 및 하중재하...14 2.1.1 측정시기...14 2.1.2 하중재하...15 2.2 측정위치...16 2.3 정적 재하시험결과...16 2.4 동적 재하시험결과...20 2.5 고찰...22 2.6 공용하중...23 3. 보강대책...25 3.1 상부구조의 문제점...25 3.1.1 설계특징...26 3.1.2 하중증대에 대한 고찰...27 3.2 보강에 대한 제한조건...28 3.3 보강안...30 3.3.1 상부구조...30 3.3.2 하부구조...32 3.4 공사비(개략)...34 3.4.1 상부구조...34 3.4.2 하부구조...36 부록 역학계산 검토...43 북한강차도육교...167 1. 서언...171 1.1 개요...171 1.2 조사목적...171 1.3 교량의 제원...172 2. 현황조사...173 2.1 개요...173 2.2 상부구조...173 2.3 하부구조...175 3. 구조계산 및 응력검토...177 3.1 개요...177 3.1.1 해석상의 가정...177 3.1.2 적용기준...177 3.1.3 적용하중...177 3.1.4 재질...178 3.1.5 응력해석...178 3.2 슬래브교 응력...179 3.2.1 4경간연속슬래브...179 3.2.2 P.C 빔슬래브...179 3.3 P.C 빔의 응력...180 3.3.1 DB-18 하중작용시...180 3.3.2 DB-24 하중작용시...181 3.3.3 합성형역할을 하지 못할 경우...181 3.4 결과고찰...181 3.4.1 4경문연속슬래브...181 3.4.2 P.C 빔 교...182 4. 건의 및 대책...183 4.1 개요...183 4.2 건의사항...183 4.3 보강대책...184 4.4 보수계획...184 부록...189 1. 구조계산서...195 2. 보수게획개략공사비...211 남한강차도육교...213 1. 서언...2127 1.1 개요...217 1.2 조사목적...217 1.3 교량의 제원...218 2. 현황조사...219 2.1 개요...219 2.2 상부구조...219 2.3 하부구조...221 3. 구조계산 및 검토...223 3.1 개요...223 3.1.1 해석상의 가정...223 3.1.2 적용기준...223 3.1.3 적용하중...223 3.1.4 사용재료의 강도...223 3.1.5 응력해석...223 3.2 슬래브 응력...224 3.2.1 DB-18 하중작용시...224 3.2.2 DB-24 하중작용시...224 3.3 P.C 빔 응력...224 3.3.1 DB-18 하중작용시...224 3.3.2 DB-24 하중작용시...225 3.3.3 슬래브의 균열현상으로 합성형역할을 하지 못할 경우...226 3.4 결과분석...226 4. 안전대책 및 보수...227 4.1 개요...227 4.2 상부구조...227 4.3 하부구조...228 4.4 보수방법...228 부록...233 1. 구조계산서...237 3. 보수계획개략공사비...250 서울역고가차도...251 1. 서언...255 1.1 개요...255 1.2 목적 및 조사범위...255 1.3 교량의 제원...256 1.4 교량의 이력사항...256 2. 현황조사...257 2.1 개요...257 2.2 상부구조...257 2.3 하부구조...259 3. 구조계산 및 검토...263 3.1 개요...263 3.2 슬래브의 응력...265 3.3 주형의 응력...266 3.4 결과고찰...268 4. 건의 및 대책...270 4.1 개요...270 4.2 단기대책...270 4.3 장기대책...271 4.4 보수계획...271 부록...277 1. 구조계산서...281 2. 보수계획개략공사비...309