FIELD: transportation systems with railway structure close to tracks of suspended and trestle types. SUBSTANCE: main and auxiliary lines of transportation system are correspondingly fixed on supports and in spans, auxiliary line being fixed under main line with preliminary sag. In span between adjacent supports there are group of suspended supports for main line distributed along auxiliary line and group tie-rods with pulling tool in the form of inscribed broken line approximating convex arc coupled to points of their attachment. Level of highest point of pulling tool with reference to points of attachment of its ends as well as distance from these points to vertical drawn through highest point satisfy certain relations. Power members of auxiliary lines are tightened in advance on anchor supports and fixed, then they are fixed on intermediate supports while constructing transportation system. Later system of tie-rods distributed along auxiliary line pulls downwards each auxiliary line with the help of pulling tool coupled to each tie-rod and suspended supports are installed and fixed in points of connection of tie-rods to auxiliary lines. Upper ends of suspended supports are made fast to each main line after its tightening. EFFECT: enlarges spans between adjacent supports with preservation of velocity characteristics of transportation system, reduced usage of materials. 18 cl, 14 dwg
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Authors
Dates
2003-12-27—Published
2002-05-21—Filed