If Angle Bars are of Steel all Rivets Must be of Steel.

If Angle Bars are of Steel all Rivets Must be of Steel.

Fob Steel Angle Bars

Add one quarter to safe load on iron bars, but length of span (in feet) must not exceed twice the depth of girder (in inches) or deflection will be too great for plastering.

Strength of Flanges.

To Obtain the Actual Stebngth of Flange in Tons

To Obtain the Actual Stebngth of Flange in Tons

Multiply the safe uniform load (U) by the effective width of flange, that is, the total width of either flange, less the greatest Dumber of riv et holes coming on any line drawn across the top of flange, and at right angles to same (us-ually two rivet boles).

Never use less than one-quarter Inch thick plates.

For STEEL FLANGLES

Add one-quarter to safe load on flange hut length of span (in feet) must not exceed twice the depth (in inches) or deflection will be too great for plastering.