FIELD: construction.
SUBSTANCE: girder supporting joint on truss includes upper truss band and adjoining diagonal braces with misaligned axes. In a truss joint, a girder rests on truss band with eccentricity causing the joint to rotate in a direction opposite to rotation caused by brace misalignment. Crossing point of upper band axis with compressed diagonal brace axis is considered to be the centre of truss joint rotation, and girder support eccentricity is e=M/P where M is the joint torque in girder generated by forces in diagonal braces adjoining the band; P is a force exerted by the girder on upper truss band.
EFFECT: reduced material consumption per truss in girder coverage.
2 dwg
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