FIELD: crane track structures.
SUBSTANCE: invention relates to heavy-duty crane track structures. Proposed rail-and-beam with upper tubular belt of round shape and rail installed on beam. Said rail is made three-headed, having central head and two side heads. Heads are interconnected by foot in form of circular arc following form of outer surface of upper belt being connected with rail by studs. Static moments of upper and lower parts of structure section relative to main horizontal axis dividing height of section in two are equal to each other for balancing section of entire structure.
EFFECT: reduced material usage of structure.
4 dwg
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