Triangulation of a lattice girder, in particular of a jib...

Details Triangulation of a lattice girder, in particular of a jib... Triangulation of a lattice girder, in particular of a jib...

2005-03-29

2005-03-29

Chapman, Jeanette E. (Department: 3635)

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

C052S634000, C052S636000, C052S637000, C052S648100, C052S651010, C052S650100, C052S650200, C052S693000, C212S347000

Reexamination Certificate

active

06871469

ABSTRACT:
For a lateral face of the lattice girder, defined by an upper chord and a lower chord, the triangulation comprises compression bars substantially perpendicular to the chords, oblique tension bars of smaller length connecting the top of a compression bar to the lower chord, and other oblique tension bars of greater length, also connecting the top of a compression bar to the lower chord, at a point located further ahead toward the base of the next compression bar. This triangulation is used, in particular, for the jib and counterjib elements of tower cranes.

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