콘크리트 방호벽 강도계산
AASHTO LRFD BRIDGE DESIGN SPECIFICATION(AASHTO, 2012) SECTION 13 : RAILINGS ○ 설계하중(Design Forces) Design Forces and Designations Railing Test Levels TL-1 TL-2 TL-3 TL-4 TL-5 TL-6 $F_{t}$ Transverse(N) 60,000 120,000 240,000 240,000 550,000 780,000 $F_{L}$ Longitudinal(N) 20,000 40,000 80,000 80,000 183,000 260,000 $F_{v}$ Vertical(N) Down 20,000 20,000 20,000 80,000 355,000 355,000 $L_{t}$ and $..