LHCb Radiation Shielding Wall – Lifting Tool Overview

LHCb Radiation Shielding Wall – Lifting Tool Overview Protected area Shielding Wall Experiment Area

LHCb Radiation Shielding Wall – Lifting Tool The experiment area of LHCb caver is equipped with two overhead travelling cranes which characteristics are related in the following tables. Table 3: Characteristic for Carne PR721 (1x40 t). Number of hooks (tons)1 Load by hooks (tons)40 Free height under hook* (mm)13500 Free height under crane* (mm)13450 Lateral Stroke* (mm)11000 (X = to X = 5500) (*) theoretical nominal lengths than should be checked “in situ” Table 4: Characteristic for Carne PR720 (2x40 t). Number of hooks (tons)2 Load by hooks (tons)40 Free height under hook* (mm)13500 Free height under crane* (mm)13450 Lateral Stroke* (mm)11000 (X = to X = 5500) (*) theoretical nominal lengths than should be checked “in situ” Constraints OVERHEAD TRAVELING CRANES

LHCb Radiation Shielding Wall – Lifting Tool Constraints Wall end 12450* Free height under crane* (*) Aprox. dimensions Free height under hook* Free height* 1000

LHCb Radiation Shielding Wall – Lifting Tool More distant Concrete blocks 2400x1200x800 – 55 kN Constraints

LHCb Radiation Shielding Wall – Lifting Tool Crane Rail Outer Layer 1600 mm Inner Layer 1600 mm Upper Part 2400 mm Front Part 3200 mm Concrete blocks 2400x1600x800 – 75 kN Crane Rail Concrete blocks 2400x1600x800 Constraints ??

LHCb Radiation Shielding Wall – Lifting Tool Environment Front Part 3200 mm TOP VIEW Upper Part 2400 mm Inner Layer 1600 mm Outer Layer 1600 mm Concrete blocks 2400x1600x800 – 75 kN Concrete Pillar Chicane for services Crane Rail 7350 from cavern axis ??

LHCb Radiation Shielding Wall – Lifting Tool SIDE VIEW Front Part 3200 mm Upper Part 2400 mm Inner Layer 1600 mm Outer Layer 1600 mm Concrete blocks 2400x1600x800 – 75 kN Concrete Pillar Chicane for services Crane Rail ~ 750 ~ 350 ~ 250

LHCb Radiation Shielding Wall – Lifting Tool Environment constraint Protected area Experiment Area Shielding Wall

LHCb Radiation Shielding Wall – Lifting Tool Environment h2 h1 h5 h0 h3 ~ 8500 h7 C. Axis Protected area Shielding Wall Experiment Area ~ 7500 ~ 8300 ~ 3400 ~ 4000 ~ 1700 ~ 7800 h4 h6 Level Ref. Height from floor level (mm) Element h00Cavern floor h13000Chicane h26200Platform h36300Balcony h49400Platform h510700Tower h611800Tower h713400Gantry Table of heights

LHCb Radiation Shielding Wall – Lifting Tool Concrete block Counterweight FRONT VIEW TOP VIEW Max. 350 PR 721 Hook 250 Lifting tool – Option hook

LHCb Radiation Shielding Wall – Lifting Tool Wall Thickness Crane Limit 5500 from cavern axis Angle Lifting tool – Option hook

LHCb Radiation Shielding Wall – Lifting Tool Hook PR721 Concrete block CounterweightFRONT VIEW TOP VIEW Max. 350 PR 720 Hook for axis alignment position PR 720 Hook for tilted position 250 Lifting tool – Option hooks

LHCb Radiation Shielding Wall – Lifting Tool Distance between hooks Wall Thickness Crane Limit 5500 from cavern axis Angle ~ 6000 Lifting tool – Option hooks

LHCb Radiation Shielding Wall – Lifting Tool Study View from Experiment Catia 3D model as build performed by Andre Coin

LHCb Radiation Shielding Wall – Lifting Tool Study Catia 3D model as build performed by Andre Coin Hook max. lateral stroke position Range Area for 5 m Cantilever Lifting tool

LHCb Radiation Shielding Wall – Lifting Tool Overview CANTILEVER SECTION RESISTANCE MOMENT Considering a cantilever of 4.8 m a nominal load of 75 kN and the follow safety factors: -Partial safety factor νe = Dynamic factor ψ = 1.6 y = 1+ ξ*VL VL = 1 (m/s) ξ = 0.6 -Safety factor used = 1.6 x 1.5 = 2.4 That yields a section profile with a resistance moment at least of: MRd = (75000 x 2.4 x 4800) = 864 kNm The shear effort must be considered for each shape section. ~ HEB 500

LHCb Radiation Shielding Wall – Lifting Tool Overview CANTILEVER FEA CALCULATION Calculation has been performed with the following data: Material: Steel Density:7800 kg/m^3 Elastic Module: N/mm^2 Poisson ratio:0.3 FEA element type: ANSYS SHELL63 3D model main dimensions: Total length:4800 mm Profile height 1:500 Profile height 2:250 Length for h1 height:2000 Length for h2 height:1500 Top plate large: 300 mm Top plate thickness: 28 mm Bottom plate large:300 mm Bottom plate thickness:28 mm Web thickness:14.5 mm Load and safety factor Load:75 kN Global safety factor:2.4 Picture shows the von Mises Stress in the cantilever

LHCb Radiation Shielding Wall – Lifting Tool More info DocumentNumber Mur de blindage UX85 – Partie frontale – Plan 1 LHBIERM_0054 Mur de blindage UX85 – Partie frontale – Plan 2 LHBIERM_0055 LHCB – UX 85 - Mur de blindage – Blocs béton 2400x1200x800 mm LHBIERM_0056 LHCb Shielding Wall – Front part construction EDMS v3 Code D1 Lifting equipmentEDMS v2 Internal Working document, Technical specification for DO will be created if necessary

LHCb Radiation Shielding Wall – Lifting Tool Conclusion EDMS CONCLUSION The main dimensions and performances for the lifting tool are shown in this document but before the final design of the lifting tool, check all critical dimension as free heights “in-situ” is important, also the hook closer to Shielding Wall is a critical point in the design of the lifting tool, reducing this closer position will be an important improvement in the design. Option 1 lifting tool could be more expensive than option 2 but will be more suitable due to its smaller dimensions. Special attention must be taken in the suspension design in the pick-up point in order to reach the available free height under crane rails