ML20092A679

Design Criteria for Lifting Sys for TN-40 Dry Storage Cask at Praire Island

ML20092A679
Person / Time
Site:	Prairie Island
Issue date:	12/18/1991
From:	TRANSNUCLEAR, INC.
To:
Shared Package
ML20092A626	List: ML20092A623 ML20092A667 ML20092A679
References
NUDOCS 9202100231
Download: ML20092A679 (9)

Text

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E-12261-Revision O 12/18/91 1

DESIGN CRITERIA FOR LIFTING SYSTEM FOR TN-40 DRY STORAGE CASK AT PRAIRIE ISLAND Transnuclear, Inc.

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A E-12261 Revision 0 12/16/91 1.0 SCOPE The scope of this-document is to establish the design criteria for the design of the lifting system to be used for handling the TN-40 D'.y Storage Cask at the Prairie Island facility (PI).

The lifting system shall consist of a lift beam assembly,a lift beam extension, two 6-7/8" diameter pins and a hook pin sleeve. One pin shall connect the lift beam to the lift beam extension. The other pin and sleeve shall connect the lift beam extension to the crane hook.

2.0 APPLICABLE DOCUMENTS 2.1 codes and Standards 2.1.1 ASME Boiler and Pressure Vessel Code,Section II.

Part A. Ferrous Materials.

l 2.1.2 ASTM Material Standards.

I l 2.1.3 ANSI N14.6 - American National Standard for Special Lifting Devices for-Shipping Containers Weighing 10,000 pounds (4500 kg) or More for Nuclear

-Materials.- (1986) 2.1.4 LNUREG-0612 " Control of Heavy Loads at Nuclear Power Plants."

D 2.2 TN Documents 2.2.1 E-ll499, latest revision, Quality Assurance Program Plan for_the Design, Procurement, Fabrication. Testing and Acceptance of TN-40 Dry Storage Cask.

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12/18/91-212.2 E-11402, latest revision, Design Critoria for the

-TN-40. Dry Storage _ Cask.

2.2.3 -TN Drawings _ _;

1042-30-1, latest revision. TN-40 Dry Storage Cask

-_ Assembly;& Parts List.

-1042-36-2,- latest revision, TN-40 Dry Storage Cask Shell-Assembly.

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L1042-30-3, latest revision, TN-40. Dry Storage cask Shell Details-&^ Parts List.

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2.3 Other; 2.3'.1 Ederer Dwg. B-18555 Rev. O. Sister Hook 125 Ton Capacity.

-2.3.2*~Ederer Dwg. PA-1808 Rev. B Clearance Drawing _125/15 ton lX-SAM Trolley,l Northern: States' Power.

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2. 3. 3 - Ederer_Dwg. A-14755, Rev. O, Lower : Block Assembly.

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(Main Hoist) 1251 ton M.C.L. Cap.

2.3.41 NSP Internal Correspondence from R. Johnston, to J.

Kapitz,: November, 27. 1991,- Prairie Island-NPD .

- Significant Elevations L f or- Cask- Handling.

j' 2.3.5- NSP letter from J.. Kapitz to M. Mason, Transnuclear,

'Inc.-dated March 18. 1991 Prairie Island /TN-40 Lift:

Beam Design.

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. . .E-12261

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_12/18/91 t e 3.0 -DESIGN _ REQUIREMENTS ,

3.1 'The pins used toi'nterface with the PI crane hook and lifting system shall be provided with positive-locking devices.

'3.2- The~ lifting system shall be a single _. failure proof lifting.

system.

3.3 TheLliftLbeam and lift beam extension to be furnished to the

=PI facility shall belof sufficient lengths to assure.that the- k eye of1the hook need not be lowered below elevation 745'.

~3.4- The weight onLthe PI c;ane hook shall not exceed 125 tons.

This weight includes.the weight of the loaded TN-40 cask:and L the lifting; system.

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p 1 3.5 The: lif ting : system weight shall.not exceed 9000 lbs.

3.6. .The-lift beam _and extension shall be designed for a vertical

-load, i.e. design load, which-is-based on the weight of the loaded cask plus11t own weight'(125 tons).

3.7L .The design of the lifting' system shall be in accordance with the criteria of NUREG-06L*. for single failure proof. handling'

systems.

3.8 The design of the: lifting: system shall_ consider _ requirements

_for ease-of decontamination. . Decontamination materials used

'initheLfacility1shall not result in1 degradation of: lifting system-materials and associated hardware.

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3.9:  :-The' critical-elevations olf_the' facility to be used to-determine the lift 1 beam and lift beam extension-lengths are:

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-Maximum elevation of Crane Hook 787'-0" Top of: Pool Wall. -755'-0" Bottom of. Cask in Pool 713'-6" Minimum' Pool Water Level 748'-6" 1

. E-12361 Revision 0 12/18/91 3.10 Ample clearance shall be provided for easy engagement of pins into the lift beam and PI crane hook.

3.11 The cask lift beam shall be capable of remote operation in order to remove and engage the lift beam from the cask while it is on the. bottom of the pool.

3.12 Slings shall be provided for the lift beam. The slings may be attached to the lift beam and utilized to remove / replace the cask lid.

3.13 The lifting system shall be designed for a 0.25G lateral load.

3.14 -The design of the lift beam shall allow free rotation of the lift arms for engagement of the cask trunnions.

4.0 STRESS CRITERIA 4.1 In addition to the stress design factor guidance in ANSI N14.6, an additional factor of 1.05 shall be used to account for any dynamic loads from the Ederer (PI) crane. The allowable stress criteria for the design of the lifting

-system shall be as follows:

4.1.1 The maximum tensile stress in the lifting system for a vertical load of 10.5 times the design lead shall not exceed the minimum ultimate tensile strength of the lifting system material.

4.1.2 The maximum tensile stress in the lifting system for-a vertical load of 6.3 times the design load shall not exceed the minimum yield strength of the lifting system materials.

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E-13261 l l

Revision 0 12/18/91 4.1.3 The average bearing stress in the lifting system for a vertical load of 10.5 times the design load shall not exceed-the minimum ultimate strength of the lifting system material.

4.1.4 The average bearing stress in the lifting system for a vertical load of 6.3 times the design load shall not exceed the minimum yield strength of the lifting system meterial.

4.1.5 . Maximum shear stress due to 10.5 times the design load shall not exceed 50% of the minimum ultimate tensile strength-of the litting system materials.

4.1.6 Maximum shear stress due to 6.3 times the design load shall not exceed 50% of the minimum yield strength of the lifting system materials, 4.2 The above stress criteria do not apply to localized stresses relieved by slight yielding of the materials.

4.3 The yield and minimum ultimate tensile strengths shall be obtained at the design temperature of 100*F.

- 5.0 MATERIAL REQUIREMENT 6 L

5.1 The mechanical properties of the lift beam materials shall be obtained from ASME B&PV Code, Section 11. Material Specifications, or ASTM Material Specifications. The material shall be procured to the above material specifications to assure that values utilized in design calculations are met.

5.2 The materials selected for the lifting system and related accessories shall be compatible with the PI crane hook and other interfacing components.

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E-12361 Revision 0

, 12/18/91 6.0 PERFORMANCE REQUIREMENTS 6.1 The lifting system shall be designed such that wetting of the i PI crane cables shall not be necessary during cask handling. l 6.2 The lifting system shall be tested in accordance with the .

i acceptance testing requirements of ANSI-N14.6 to 150% of the design load.

6.3 Non painted threaded parts and bearing surfaces shall be I

suitably protected to prevent corrosion.

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7.0 QUALITY ASSURANCE REQUIREMENTS 7.1- The lifting. system is a critical component during lifting and handling operations of TN-40 casks and therefore has been "asignated as safety related.

7.?= The design, procurement, fabrication and acceptance of the lift beam shall be in accordance with Project QA Plan E-11499.

l 7.3 Design calculations and drawings shall be-prepared in.

Eccordance with the Project QA Plan and Transnuclear's Corporate QA Procedures. The design drawings shall be the basis for the-procurement. specification and subsequent o fabrication drawings.

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