TABLE 3 – Load Capacities Developed by Structural Analysis
Mar 31, 2017
|Basic Frame||With Extension Legs**|
|Capacity* lb/leg||8″ ext.||14″ ext.|
|Vertical @ S.F. – 2.5||6,800||5,000||4,000|
|Lateral @ S.F. – 2.5||136||100||80|
|Vertical @ S.F. – 2.5||8,700||6,000||4,400|
|Lateral @ S.F. – 1.0||174||120||88|
|NOTE: Where lateral loads to be resisted are less than 2%,the vertical capacity may be adjusted pro-rata.
* With 12″ screwjack extended top and bottom.
** At either or both ends, plus 12″ screwjack extension each end.
NOTE: In general, the longer extensions may be eliminated by appropriate combinations of standard frame heights.
NOTE: Where lateral loads are imposed, the designer must also consider:
a) Stability of the incomplete and completed structure against overturning.
b) Additional vertical loads induced in resisting lateral loads.
c) Drift (lateral deflection) under lateral loads, which may affect forming tolerances.