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 |
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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. |
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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 |