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    • 1. 发明专利
    • Improvements in joint for structural steel columns and girders
    • GB332367A
    • 1930-07-24
    • GB1850929
    • 1929-06-15
    • JOHN ANDREW LARKIN
    • E04B1/24
    • 332,367. Larkin, J. A. June 15, 1929. Ironwork, constructional.-In order to secure girders to columns, gusset plates are provided either passing through the column web or attached to the flanges thereof, the arrangement being such that the gusset plates form an integral part of the section of the columns. The form shown comprises a built-up column. slots 20a being provided in the web and flanges for the passage of a gusset plate 22 with projecting ends 22a. Furthey gusset plates 27 with projecting ends 27a lie along the inner faces of the flanges with their upright inner edges abutting against the faces of the gusset plate 22, and filler plates 28, 29 are disposed above and below these gusset plates. Securing angles 30 are disposed along the angles of the web and further filler plates 32 are disposed along the flanges. Brace plates 33, 34 are then placed along the joints between the angle flanges and the flanges and filler plates and are secured to the column by rivets. The webs of the girders abut the ends of the gusset plates and the joints are made by riveted butt-straps 25. In the case of a column of sectional metal, the cross gusset plate 44 passes through slots in the flanges so disposed that the gusset plate has one face co-planar with the web while the auxiliary gusset plates are positioned by filler pieces 48 and secured by butt-straps 49, Fig. 15.