Pipe Selection Diameter- Please Select -1215182124303642485460667278849096102108114120126132138144 (inches)Corrugation- Please Select -2⅔" x ½"3" x 1"5" x 1"¾" x ¾" x 7½" (inches)Gage- Please Select -161412108 Diameter(inches)Em modulus of elasticity(ksi)Corrugation(inches)Fy minimum yield strength(ksi)GageFu minimum tensile strength(ksi)Span(inches)Rn factored axial resistance to buckling(kpf)Thick(inches)fcr critical buckling stress(ksi)A area of section(in2/ft)FF(in/kip)I moment of inertia(in4/in)FFmax(in/kip)r radius of gyrationFF CheckLoad TypeVehicle 1 Evaluate both the design truck and the design tandem to determine which configuration produces the maximum load. HL93 TruckHL93 Tandem Vehicle 2 Evaluate both the design truck and the design tandem to determine which configuration produces the maximum load. HL93 TruckHL93 Tandem kips/wheelkips/wheelwt (in)wt ((in)Lt ((in)Lt ((in)WSP ((ft)WSP ((ft)Sa ((ft)Sa ((ft)Hint-t ((ft)Hint-t ((ft)Hint-p ((ft)Hint-p ((ft)Load Resistance FactorγEV load factor for vertical pressure from dead load of earth fillm single-lane multiple presence factorγLL load factor for live loadΦw load factor for vertical pressure from dead load of earth fillηEV vertical earth pressure load modifierDensity(kcf)ηLL load modifier as they apply to live loads on culvertsk soil stiffness factorResultsMaximum Height of Cover(feet)Minimum Height of Cover Minimum covers are measured from the top of the pipe to the bottom of a flexible pavement structure or to the top of a rigid pavement structure. Minimum covers must be maintained in unpaved traffic areas.(feet)
