강도로교 상세부설계 지침 2006
그간 우리나라에서도 다양한 사회기반 시설의 건설 및 확충이 이루어져
왔으며, 근래에는 건설기술의 선진화에 많은 노력을 기울이고 있습니다. 특히
도로의 가장 중요한 구조물인 교량의 경우 서해대교, 영종대교, 광안대교
등의 장대교량을 우리 기술로 건설할 수 있을 만큼 기술발전을 가져
왔으며, 최근 우리나라 서남해안의 도서지역을 연결하는 장대교량의 설계를
마치면서부터 설계분야에서도 많은 성장을 하게 되었습니다.
이번 강도로교상세부설계지침을 개정하게 된 것은 이와 같은 교량 기술의
발전과 급속하게 개방되는 건설시장의 추세에 부응할 수 있도록 국제
단위계인 SI단위계로 변경하고, 최근의 강교량 제작품셈 개정과 그동안 연구
확인된 자료들을 반영하여 알기 쉽게 상세히 기술하므로써 향후 강도로교
설계자의 전문기술을 높혀 교량의 안전성과 제작, 가설의 효율성 확보로
기술 선진화에 부응하고 국가경쟁력 확보에 크게 기여하기 위한 것입니다.
개정작업에는 산․학․연의 많은 전문가들이 참여하여 많은 토론과 검증,
그리고 자문을 통해 이루어졌습니다만 제한된 연구기간에 방대한 자료를
검토하는 과정에서 일부 미비한 점이 있을 수 있으리라 생각하며 이에 대
해서는 앞으로 지속적인 추가․보완작업을 해나가겠습니다.
끝으로 강도로교상세부설계지침 개정 작업에 참여한 집필위원들과, 자문
위원, 평가심의위원 그리고 관계 공무원 여러분의 노고에 감사드리며,
본 설계 지침이 강도로교 기술발전과 국민의 안전에 도움이 되기를 기대
합니다.
2006년 6월
건설교통부 도로기획관 권 진 봉
설계지침 개정에 따른 경과 조치
본 강도로교 상세부설계지침 발간시점에서
이미 시행 중인 건설공사는 발주기관의 장이 필요
하다고 인정하는 경우 종전의 지침을 그대로 사용
할 수 있다.
목 차
제 1 장 총 칙
1.1 적용범위 ·······························································1
1.2 강도로교 상세부 설계지침의 목적 ········································1
1.3 강재의 선정 ····························································2
1.4 강재의 허용응력 ························································4
1.4.1 구조용 강재의 허용응력 ···········································4
1.4.2 주단조품의 허용응력 ··············································5
1.4.3 용접부 및 이음용 강재의 허용응력 ·································5
제 2 장 부재의 연결 및 이음
2.1 부재의 연결 ···························································11
2.1.1. 일반 ···························································11
2.1.2 용접, 고장력볼트의 병용 ·········································12
2.2 용접이음 ······························································13
2.2.1 용접의 종류와 적용 ·············································13
2.2.2 용접기호 표시방법 ···············································15
2.2.3 용접 부호의 치수 표시방법 ·······································19
2.3 고장력볼트 이음 ·······················································28
2.3.1 일 반 ···························································28
2.3.2 볼트, 너트 및 와셔 ··············································29
2.3.3 볼트간격 ························································30
제 3 장 플레이트 거더교
3.1 복부판과 플랜지의 판이음 및 필릿용접 ··································35
3.1.1 복부판의 이음 ···················································35
3.1.2 플랜지 판이음 ···················································36
3.1.3 플랜지와 복부판의 필릿용접 목두께 ·······························36
3.1.4 용접이음의 집중 ·················································37
3.1.5 플랜지 단면변화부와 이음판과의 최소거리 ·························38
3.2 플랜지의 단면변화와 형상 ··············································39
3.2.1 플랜지의 단면변화 ···············································39
3.2.2 하부플랜지와 소울플레이트 ·······································40
3.2.3 절단면의 모따기 ·················································41
3.3 전단연결재 ····························································41
3.3.1 스터드의 가로 배치 ··············································41
3.3.2 스터드의 세로 배치 ··············································42
3.3.3 이음판위의 스터드 ···············································43
3.3.4 사교에서의 스터드의 배치 ········································44
3.3.5 바닥판 앵커 ·····················································45
3.3.6 이음판에 인접한 바닥판 앵커 ·····································47
3.4 보강재 ································································47
3.4.1 수직보강재와 상·하부플랜지 연결 ·································47
3.4.2 수평보강재 ······················································53
3.4.3 JACK-UP용 보강재 ··············································56
3.5 현장이음 ······························································58
3.5.1 현장이음의 위치표시 ·············································58
3.5.2 고장력볼트의 사용 ···············································58
3.5.3 복부판의 이음 ···················································59
3.5.4 플랜지의 이음 ···················································60
3.5.5 고장력볼트 체결을 위한 최소이격거리 ·····························61
3.5.6 이음상세 ························································64
3.6 주거더 단부의 노치부 ··················································66
3.7 소울플레이트 ··························································70
3.8 수직브레이싱과 분배가로보 ·············································71
3.8.1 평면부재중심선 ··················································71
3.8.2 중간 수직브레이싱 ···············································73
3.8.3 단부 수직브레이싱 ···············································81
3.8.4 가로보 및 세로보 ················································83
3.9 수평브레이싱 ··························································85
3.9.1 브레이싱의 배치방법 ·············································85
3.9.2 연결판의 부분상세 ···············································88
3.10 주거더 상호간의 연결 ················································90
3.10.1 단부가로보와 세로보의 연결 ····································90
3.10.2 중간가로보와 세로보의 연결 ····································91
3.10.3 세로보를 가로보 위에 설치하는 구조 ····························93
3.10.4 분기거더와 주거더의 연결 ······································95
3.10.5 측면세로보와 브라켓과의 연결 ··································96
3.10.6 Ι형보와 브라켓과의 연결 ········································97
제 4 장 박스거더교
4.1 연결법 및 이음의 공통사항 ···········································101
4.2 복부판과 플랜지의 이음 ··············································101
4.2.1 복부판의 이음 ·················································101
4.2.2 플랜지의 이음 ·················································102
4.3 박스거더의 하부플랜지 돌출길이 ······································103
4.4 중간 횡방향 보강재의 형상 ···········································103
4.5 박스거더의 플랜지에 부착되는 종방향 보강재의 부착 각도 ··············104
4.6 보강재 ······························································105
4.6.1 횡방향 보강재와 종방향 보강재의 교차부 ························105
4.6.2 종방향 보강재 마감부 구조 ·····································107
4.6.3 부재간격의 결정 ··············································108
4.7 다이아프램 ··························································109
4.7.1 중간 다이아프램의 보강 구조 ···································109
4.7.2 지점부 다이아프램의 보강 구조 ·································112
4.8 작업 구멍의 구조 ····················································114
4.9 단면구조 상세 ·······················································115
4.9.1 운송을 위한 구조 ··············································115
4.9.2 배수구멍 설치 ················································116
4.9.3 환기구멍 설치 ················································116
제 5 장 트러스교
5.1 트러스 현재의 단면구성 ··············································121
5.1.1 상․하현재 ······················································121
5.1.2 사재 및 수직재 ················································125
5.2 트러스 격점 구조 ····················································126
5.2.1 거세트 판 ·····················································126
5.2.2 사재 단부의 구조 ··············································130
5.2.3 사재 단부의 연결방식 ··········································131
5.2.4 브레이싱의 연결 ··············································134
5.2.5 수직방향으로 절곡되는 트러스의 격점구조 ·······················138
5.2.6 수평방향으로 절곡되는 트러스의 격점구조 ·······················139
5.2.7 연속 트러스 중간지점부의 격점구조 ·····························139
5.3 주요 부재의 이음 ···················································141
5.4 기타 부재의 연결 구조 ··············································143
5.5 교문 브레이싱 ······················································145
5.6 게르버 구조의 힌지구조 ·············································146
제 6 장 아치교
6.1 아치리브의 단면구성 ·················································151
6.1.1 아치리브 ······················································151
6.1.2 지주 및 행어 ··················································152
6.1.3 보강거더의 표준단면 ···········································152
6.2 아치리브와 보강거더의 교차부 구조 ···································153
6.2.1 하로교 형식에 대한 교차부 구조 ······························153
6.2.2 중로교 형식에 대한 교차부 구조 ································159
6.3 아치의 힌지 지점부 구조 ·············································161
6.4 연속 아치의 중간 지점부 구조 ········································162
6.5 지주 및 행어의 격점부 구조 ··········································162
6.6 부재의 연결 ·························································167
6.6.1 현장연결부의 위치 ·············································167
6.6.2 핸드홀 ························································168
6.6.3 고장력볼트의 배치 ·············································169
6.6.4 연결판 ························································170
6.7 보강거더 ····························································171
6.8 수평브레이싱 ························································172
6.9 대경구 ······························································173
6.9.1 조립방법 ······················································173
6.9.2 연결부의 구조 ·················································175
제 7 장 강바닥판
7.1 바닥판 ······························································179
7.1.1 바닥판의 최소두께 ·············································179
7.1.2 허용응력의 증가 ···············································180
7.1.3 일반적인 구조상세 ·············································181
7.1.4 바닥판의 현장이음 ·············································182
7.1.5 포장 및 마감틀 ················································184
7.2 세로리브 ····························································185
7.2.1 세로리브 단면 ·················································185
7.2.2 세로리브와 바닥판과의 용접 ····································188
7.2.3 세로리브 배치 ·················································189
7.2.4 세로리브의 현장 용접이음 ······································190
7.2.5 세로리브의 현장 볼트이음 ······································192
7.2.6 세로리브의 다이아프램 ·········································194
7.3 가로리브 ····························································195
7.3.1 가로리브 구조 ·················································195
7.3.2 세로보 지점위치의 가로리브 ····································196
7.3.3 가로리브의 배치 ···············································197
7.3.4 가로리브의 현장이음 ···········································198
7.3.5 스캘럽 및 슬롯의 형상 ·········································199
7.4 핸드홀 ······························································200
7.4.1 핸드홀 ························································200
제 8 장 강재교각
8.1 거더 및 기둥 ························································205
8.1.1 일반사항 ······················································205
8.1.2 원형 단면 기둥 ················································207
8.1.3 맨홀 ··························································207
8.2 다이아프램 ··························································208
8.2.1 중간 다이아프램과 맨홀 ········································208
8.2.2 모서리부 다이아프램과 맨홀 ····································209
8.2.3 모서리부의 용접 ···············································212
8.3 종리브 ······························································212
8.4 기둥 기초부 ·························································213
8.4.1 설계의 기본방침 ···············································213
8.4.2 베이스부 ······················································213
8.4.3 앵커프레임 ····················································214
8.5 교량받침부 ··························································215
8.5.1 교량받침부에서 교각단부까지의 거리 ····························215
8.5.2 교량 받침판의 설치 ············································216
제 9 장 점검시설
9.1 총칙 ································································219
9.1.1 적용범위 ······················································219
9.2 점검로 부속설치 ·····················································219
9.2.1 거더 단부의 맨홀 ··············································219
9.2.2 가로보의 맨홀 ·················································220
9.2.3 내부점검구 ····················································220
부 록
부록 Ⅰ. 용접 이음의 분류 및 표시방법 ····························229
부록 Ⅱ. 강재교각 ·····················································231
부록 Ⅲ. 소수거더교····················································249
부록 Ⅳ. 개단면 박스거더·············································265
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