FCC GANTRY FOR DETECTOR LOWERING

STUDYPotential designs and Contractors

Julia CollinsThursday 25th of August 2016

Thanks to John Osborne (SMB-SE-FAS), Hubert Gerwig (EP-CMX-EI) , Raul Fernandez Ortega (SMB-SE-DOP)

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

Gantry Crane system

Information regarding CMS Crane

Beam cross section Calculations Eurocodes 3

Estimates calculated   CMS 1 2 3 4Load applied (t) 2000 6000 6000 6000 6000Column height (m) 24.1 25 30 30 40Beam span (m) 27.5 30 40 40 50Distance btw LP*(m) 12.7 20 24 24 32Steel grade S355 S355 S355 S410 S355Cross section (mm) h: 3300

b: 1150d: 2750tw: 25tf: 50

h: 4100b:1600d: 3390tw: 45tf: 75

h: 5350b:1900d: 5190tw: 60tf: 80

h: 5350b:1900d: 5080tw: 60tf: 80

h: 6500b:2000d: 5190tw: 70tf: 80

Self weight (t) 42.09 98.38 193.3 188.2 300*LP: Loading points

Column Calculations

  CMS 1 2 3 4Load applied (t) 2000 6000 6000 6000 6000Column height

(m) 24.1 25 30 30 40Beam span (m) 27.5 30 40 40 50Distance btw

LP*(m) 12.7 20 24 24 32Steel grade of

beam S355 S355 S355 S410 S355

Main Beam cross section

(mm)

h: 3300b: 1150d: 2750tw: 25tf: 50

h: 4100b:1600d: 3390tw: 45tf: 75

h: 5350b:1900d: 5190tw: 60tf: 80

h: 5350b:1900d: 5080tw: 60tf: 80

h: 6500b:2000d: 5190tw: 70tf: 80

Self weight (t) 61 98.38 193.3 188.2 300Lo (m) 2.2 2.2 2.2 2.5 2.2Lm (m) 2.0 2.0 2.0 2.3 2.0Lk (m) 48.2 50 60 60 80

Steel grade of column 275 275 275 355 275

Column Beam cross section

h: 288.54b: 264.5

d: 193.67tw: 19.177tf: 31.75

r: not stated

W10X112 (US

specification)

h: 393.6b: 399.0d: 290.2tw: 22.6tf: 36.5r: 15.2

UKC 356X406X2

87

h: 393.6b: 399.0d: 290.2tw: 22.6tf: 36.5r: 15.2

UKC 356X406X2

87

h: 374.6b: 374.7d: 290.2tw: 16.5

tf: 27r: 15.2UKC

356X368X202

h: 419b: 407

d: 290.2tw: 30.6tf: 49.2r: 15.2

UKC 356X406X3

93

Past contractor: VSL for CMSMaximum capacity:

572.9 tonnes

4* 573 = 2292 tonnes (insufficient)

8* 573 = 4584 tonnes (insufficient)

Lifting equipment: DLTStroke: 500mm

Max fully equipped jack

weight: 12900kg

Safe working load: 1672 tonnes

4* 1672 = 6688 tonnes (sufficient)

Coiler

Vertikal.net

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

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

Thank You!