1. FCC GANTRY FOR
DETECTOR
LOWERING STUDY
Potential designs and Contractors
Julia Collins
Thursday 25th of August 2016
Thanks to John Osborne (SMB-SE-FAS), Hubert Gerwig (EP-CMX-EI) , Raul Fernandez Ortega (SMB-SE-DOP)

2. Problem
presentation
In-situ (underground) assembly of
detectors impractical
CMS heaviest component: 2000
tons
FCC (current) heaviest component
estimate: approx. 6000 tons
Design a static gantry crane
capable of lowering 6000 tons
down 200m

3. Gantry Crane system

7. Information regarding CMS Crane

8. Beam cross section Calculations Eurocodes 3

9. Estimates calculated
CMS 1 2 3 4
Load applied (t) 2000 6000 6000 6000 6000
Column height
(m)
24.1 25 30 30 40
Beam span (m) 27.5 30 40 40 50
Distance btw
LP*(m)
12.7 20 24 24 32
Steel grade S355 S355 S355 S410 S355
Cross section
(mm)
h: 3300
b: 1150
d: 2750
tw: 25
tf: 50
h: 4100
b:1600
d: 3390
tw: 45
tf: 75
h: 5350
b:1900
d: 5190
tw: 60
tf: 80
h: 5350
b:1900
d: 5080
tw: 60
tf: 80
h: 6500
b:2000
d: 5190
tw: 70
tf: 80
Self weight (t) 42.09 98.38 193.3 188.2 300
*LP: Loading points

10. Column Calculations

11. CMS 1 2 3 4
Load applied (t) 2000 6000 6000 6000 6000
Column height (m) 24.1 25 30 30 40
Beam span (m) 27.5 30 40 40 50
Distance btw LP*(m) 12.7 20 24 24 32
Steel grade of beam S355 S355 S355 S410 S355
Main Beam cross
section (mm)
h: 3300
b: 1150
d: 2750
tw: 25
tf: 50
h: 4100
b:1600
d: 3390
tw: 45
tf: 75
h: 5350
b:1900
d: 5190
tw: 60
tf: 80
h: 5350
b:1900
d: 5080
tw: 60
tf: 80
h: 6500
b:2000
d: 5190
tw: 70
tf: 80
Self weight (t) 61 98.38 193.3 188.2 300
Lo (m) 2.2 2.2 2.2 2.5 2.2
Lm (m) 2.0 2.0 2.0 2.3 2.0
Lk (m) 48.2 50 60 60 80
Steel grade of
column
275 275 275 355 275
Column Beam cross
section
h: 288.54
b: 264.5
d: 193.67
tw: 19.177
tf: 31.75
r: not stated
W10X112 (US
specification)
h: 393.6
b: 399.0
d: 290.2
tw: 22.6
tf: 36.5
r: 15.2
UKC
356X406X287
h: 393.6
b: 399.0
d: 290.2
tw: 22.6
tf: 36.5
r: 15.2
UKC
356X406X287
h: 374.6
b: 374.7
d: 290.2
tw: 16.5
tf: 27
r: 15.2
UKC
356X368X202
h: 419
b: 407
d: 290.2
tw: 30.6
tf: 49.2
r: 15.2
UKC
356X406X393

12. Past contractor:VSL for CMS
Maximum capacity: 572.9
tonnes
4* 573 = 2292 tonnes
(insufficient)
8* 573 = 4584 tonnes
(insufficient)

13. Lifting equipment: DLT
Stroke: 500mm
Max fully equipped
jack weight: 12900kg
Safe working load:
1672 tonnes
4* 1672 = 6688
tonnes (sufficient)

14. Coiler

15. Vertikal.net

16. Further issues to look into
■ Class 3 cross section will require stiffeners
■ Foundations
– Need to be far enough away from shaft
– This increases the lever arm and greatly increases the moment
generated
– Larger cross section needed

17. Conclusion
■ Based on calculations the crane itself seems feasible
■ Similar capacity cranes have been built before
■ The concrete plug is not expected to be a problem
■ Investigate further the hydraulic jacks for concrete plug and the column foundations
■ DLT manufactures appropriate stand-jackers

18. ThankYou!