0101_A_REPLACE_AFT_HOUSE_03_LEVEL_OVERHEAD_STEEL_(ABS)_ARCTIC_1.doc

USNS ARCTIC

AOE 8

HULL, STRUCTURE

N32205-18-R-4256 28 September 2016

ITEM NO. 101

CATEGORY “A”

MSC/N756/JEB

REPLACE AFT HOUSE 03 OVERHEAD STEEL (ABS)

1.0

ABSTRACT

1.1 This work item describes the requirements to replace the overhead steel in various areas of the 03 level of the aft house on USNS Arctic. (The 03 level overhead serves as the weather deck of the 04 level.)

2.0

REFERENCES

2.1 NAVSEA Drawing 085-6362912, Booklet of General Drawings

2.2 ABS OSR #569 (from June, 2018 Arctic SafeNet Report)ALL MEASUREMENTS ARE EXPRESSED IN INCHES.

2.3 NAVSEA DWG 521-6362950 REV A; FIREMAIN SYSTEM DIAGRAM.

2.4 NAVSEA DWG 512-6360581 REV H; HVAC DIAGRAM

2.5 NAVSEA DWG 332-6360163 REV C; LIGHTING SYSTEM DECK PLAN 03 LEVEL, FR 455-510.

2.6 NAVSEA DWG 332-6360164 REV E; LIGHTING SYSTEM DECK PLAN 03 LEVEL, FR 510-585

2.7 NAVSEA DWG 637-6361910 REV D; OVHD SHEATHING ARR 03 LVL & ABV

2.8 NAVSEA DWG 154-6362333 REV F; ASSY 03 LVL HSE W/BHDS BLW (P) FR 455-491

2.9 NAVSEA DWG 154-6362334 REV E; ASSEMBLY 03 LEVEL HOUSE-W/BULKHEADS BLW (S) FR 455-491

2.10 NAVSEA DWG 154-6362349 REV K; ASSEMBLY 03 LEVEL HOUSE-W/BULKHEADS BLW (CL) FR 491-528

2.11 NAVSEA DWG 154-6362342 REV D; ASSEMBLY 03 LEVEL HOUSE W/BHDS BLW (P) FR 528-585

2.12 NAVSEA DWG 154-6362343 REV E; ASSEMBLY 03 LEVEL HOUSE W/BHDS BLW (S) FR 528-563

2.13 NAVSEA DWG 154-6362335 REV D; ASSEMBLY 03 LEVEL HOUSE W/BHDS BLW (S) FR 563-585

2.14 NAVSEA DWG 155-6362357 REV F; ASSEMBLY 04 LVL HOUSE W/BHDS BELOW FR 563-585

2.15 ABS Rules for Building and Classing Steel Vessels, Part 7 (Contractor Obtain).

2.16 USNS Arctic 03 and 04 Level Repair Map

3.0

ITEM LOCATION / DESCRIPTION

3.1 Item Location: Various locations on the deck of the 04 level. Lap plates are identified by white paint. Areas that have had Belzona application are identified in Ref 2.2. ALL MEASUREMENTS ARE EXPRESSED IN INCHES.

3.2 Item Description/Manufacturers Data

3.2.1 Contractor Furnished Material:

3.2.1.1

10.2 plate, ABS Grade A steel; Two Thousand (2000 sq ft)

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES:

4.1 Government Furnished Equipment: None Additional.

4.2 Government Furnished Material:

5.0

NOTES

5.1 The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements to determine applicability to this Work Item. In performance of this Work Item, the contractor and all subcontractors, regardless of tier, must comply with the requirements of all applicable GTR’s.

5.2 The contractor and all subcontractors regardless of tier are advised to review the other work items under this contract to determine their effect on the work required under this work item.

6.0 QUALITY ASSURANCE REQUIREMENTS: None Additional.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Provide labor, rigging support, staging, tools, welding and cutting equipment to perform the requirements of this work specification.

7.2 Provide Gas Free Safe for Hot Work certification for the entire interior of the aft house 03 level and all weather decks in the vicinity.

7.3 Provide fire watch services during all cutting, grinding and welding operations.

7.4 The 03 level of the aft house serves as Officer Staterooms and the Officers Dining Area and Galley. Provide fire protection coverings all equipment located inside the affected spaces. Fire wrap protection shall be inspected and approved by the MSCREP prior to commencement of all cutting, grinding and welding operations. Protective coverings are to be maintained throughout the entire time during the performance of this work item. The MSCREP will make periodic unannounced inspections of protective coverings. Damage to furniture or equipment will be repaired at the contractor’s expense.

7.5 Remove all underlying interferences including, but limited too, insulation, HVAC ductwork, cables and overhead tiles. See References 2.3 through 2.7.

7.5.1 Submit a condition report of pre-existing condition of overhead insulation.

7.5.2 Submit a condition report of the pre-existing condition of the overhead tiles and tracks.

7.6 Upon arrival, perform a joint walk through of the 04 decks to confirm and identify all locations for performing steel inserts. Use References 2.2, 2.8 through 2.14 and 2.16 for guidance of areas requiring inserts.

7.7 Crop identified areas and dispose of removed steel. For bidding purposes estimate that two thousand square feet of steel will require removal.

7.8 Provide a weatherproof temporary covering while sections of the overhead steel is removed. Rain and snow shall not leak into the space. The temporary covering shall be put in place at the end of each shift. Any flooding or weather caused damage to the internal living, dining and food preparations spaces shall be repaired/replaced at the contractor’s expense. Weather proof temporary covers shall be visibly marked at temporary and not suitable for transit.

7.9 Template replacement overhead plating to align with underlying structure. Original design camber shall be maintained.

7.10 Prepare overhead plating for fit up inspections by ABS and MSCREP, prior to welding. All fit ups shall be callouts.

7.11 Weld overhead plating achieve full penetration on both sides of plating. All welds shall be final production weld inspected by ABS and the MSCREP.

7.12 Perform weld integrity testing to the satisfaction of the ABS Surveyor.

7.13 Surface prep newly installed overhead plates on both sides.

7.14 Prime newly installed overhead plates on both sides. Surface preparations and paint application shall be performed to the satisfaction of the MSC Paint representative.

7.15 Paint overhead interior with PPG Interior Paint provided as GFM.

7.16 Paint overhead exterior with GFM provided non slip paint.

7.17 Maintain daily cleanliness of work site throughout the entire course of this work requirement.

7.18 Restore all interferences and insulation.

8.0 GENERAL REQUIREMENTS: None Additional.

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