EHN1 Extension overhead crane coverage Keith Kershaw CERN EN-HE.

EHN1 Extension overhead crane coverage

Keith KershawCERN EN-HE

Existing Crane General View

CENF Project Technical Meeting 4 April 2013 K Kershaw


Extremities


Main hoist (to be replaced)


Cabin and 5t hoist (to be replaced)


Supplier Crane drawing


Crane Drawing


Existing crane hook coverage


Existing Hook Coverage SummaryHeight under main crane beams: • 9.5m

40t max hook height and approach distances:• Max hook height 10.2m above floor level• 1.5m from the crane rail at each side of the building• 4.5m from the end of the building

5t hook lift height and approach distances:• Max hook height 7.65m above floor level• 2.4m from crane rail at Jura side of building (worst case of existing cranes)• 3.2m from crane rail at Saleve side of building (worst case of existing

cranes)• 1.6m from end of building


Consolidation • Re-use existing beams (9.5m)• New 40t main hoist• New cabin and 5t hoist• Control from cabin or radio control• Lamp maintenance

• Small reduction in 40t side approach distances• Improve cabin access• Some reduction in 5t side approach distances

• Other requests

EHN1 Extension overhead crane coverage Keith Kershaw CERN EN-HE.

Documents

Transcript of EHN1 Extension overhead crane coverage Keith Kershaw CERN EN-HE.