TOWER CRANE REACTIONS AT TOP OF CONCRETE FOOTING
KRØLL K-10000 STD. - SERIAL #1111 - PER SPEC SHEET # 1-14392-00
1. PAY LOAD CONDITION 264 k at 269 ft 0 HOOK LOAD 528 k at 145 ft 264 k at 196 ft
2. WIND SPEED  MPH 0 45 0 45 0 20 0 45
3. X-Coordinate of Center of Gravity FT 12.4 10.8 18.4 15.8 18.2 18.2 13.1 11.5
4. Y-Coordinate of Center of Gravity FT 251.4 251.4 242.1 242.1 253.5 253.5 251.4 251.4
5. Total Weight incl. Impact Load KIPS 2,192 2,192 1,892 1,892 2,484 2,484 2,192 2,192
6. Overturning Moment at Base, incl. Impact, excl. Secondary Effects FT x KIPS 35,760 43,971 -34,263 -42,474 40,217 40,528 34,863 43,074
7. Overturning Moment at Base caused by Swing Ring Deflection  FT x KIPS 35 43 -28 -35 43 44 35 43
8. Overturning Moment at Base caused by Swing Frame Deflection FT x KIPS 705 866 -561 -695 870 877 687 849
9. Overturning Moment at Base caused by Base Ring Deflection FT x KIPS 88 109 -70 -88 109 110 86 106
10. Overturning Moment at Base incl. Deflections and Sec. Bending of Mast.  No Footing Tilt FT x KIPS 39,196 48,587 -36,961 -45,765 44,536 45,064 38,220 47,603
11. Overturning Moment at Base incl. Deflections and Sec. Bending of Mast.  0.1% Footing Tilt FT x KIPS 39,790 49,180 -37,452 -46,250 45,197  45,722 38,806 48,203
12. Overturning Moment at Base incl. Deflections and Sec. Bending of Mast.  0.2% Footing Tilt FT x KIPS 40,376 49,773 -37,938 -46,728  45,852 46,380 39,392 48,869
13. Overturning Moment at Base incl. Deflections and Sec. Bending of Mast.  0.3% Footing Tilt FT x KIPS 40,969 50,367  -38,422 -47,212 46,496 47,039 39,985 49,383
DESIGN PARAMETERS FOR A FOOTING WITH INSIGNIFICANT TILT:
OVERTURNING MOMENT 49,000 FT X KIPS VERTICAL LOAD 2,100 KIPS
Out Of Service, no hook load, a 100 MPH wind will result in an Overturning Moment
well below the above Design Parameters. There is Zero Overturning Moment at 115 MPH.  
 It takes a Wind Speed of approximately 175 MPH to create an Overturning Moment of 49,000 FT x KIPS.  
 Ref. K709-02 - Rotating Base Version