Statement of work for Battery Storage and Testing Bunkers Rev G.pdf

STATEMENT OF WORK (SOW)

TO PROVIDE 2 PRE-CAST PREFABRICATED

CONCRETE BUILDINGS TO B354P

PART I - GENERAL

1.01 SUMMARY

Contractor to furnish Two (2) each pre-cast, post-tensioned concrete transportable buildings for use as a battery storage and testing bunkers in the Energy Systems Test Area, NASA/Johnson Space Center, Houston, Texas, 77058.

Buildings to be delivered and placed on prepared concrete pad foundation in accordance with manufacturer’s recommendations. Pre-cast buildings to be EASI-SET brand or approved equal.

Building to be provided by manufacturer with all necessary openings as specified in conformance with manufacturer's structural requirements.

1.02 CODES, STANDARDS AND REFERENCES

ACI-318-02, “Building Code Requirements for Structural Concrete”.

ASCE-7-02, “Minimum Design Loads for Buildings and Other Structures”.

2003 IBC, “2003 International Building Code”.

PCI Design Handbook, Precast/Prestressed Concrete Institute.

UL 752, Standard for Safety for Bullet Resisting Equipment, Underwriters Laboratories Inc.

“Manual of Standard Practice”, Concrete Reinforcing Institute.

ASTM, American Society for Testing and Materials:

C150 - Standard Spec. for Type I and Type II – Low Alkali Portland Cement.

C33 - Standard Spec. for Concrete Aggregates.

A36 - Standard Spec. for Carbon Structural Steel.

A615 - Standard Spec. for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement.

A706 - Standard Spec. for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement.

A416 - Standard Spec. for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete.

A185 - Standard Spec. for Steel Welded Wire Fabric, Plain, for Concrete Reinforcement.

A307 - Standard Spec. for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength.

A123 - Standard Spec. for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

A153 - Standard Spec. for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

1.03 QUALITY ASSURANCE

A. Walls to be UL-752 Test Method Level 4 for bullet resistance and shall be certified by an independent structural engineer.

B. Building fabricator must have a minimum of 5 years of experience manufacturing pre-cast concrete buildings.

C. No alternate building designs to the pre-engineered EASI-SET building will be allowed.

1.04 DESIGN REQUIREMENTS

Dimensions:

Exterior: Two (2) buildings 14' x 14' x 14’

Standard Design Loads:

Standard Wind Loading - 140 MPH (ASCE 7-02, Category II, Exposure C, Enclosed Building)

Standard Roof Live Load - 60 PSF

Standard Floor Live Load - 250 PSF

Seismic Design category ‘D’, Seismic use Group I

Building shall be rated for 0.5 lbs TNT equivalency blast

Minimum of 6” thick walls or as dictated by TNT equivalency

Building shall be rated for no less than 140MPH wind load and no less than a 2 hour fire rating

Roof: Roof panel shall be sloped 1” from front to back. The roof shall extend a minimum of 3" beyond the wall panel on each side and have a turndown design which extends 1/2" below the top edge of the wall panels to prevent water migration into the building along top of wall panels.

Roof shall also have an integral architectural ribbed edge.

Floor: There shall be a 1/2” deep recess, the width of the wall panels, cast into the floor. The 1/2” recess makes the interior floor surface 1/2” higher than the joint between the wall panel and floor slab preventing intrusion of water. The floor must provide a slope and drain for washing down the building after a test.

Roof, floor and wall panels must each be produced as single component monolithic panels. No roof, floor, or vertical wall joints will be allowed, except at corners. Wall panels shall set on top of floor slab.

1.05 SUBMITTALS

Building engineering calculations that are designed and sealed by a professional engineer, licensed in the state of manufacture, shall be submitted for approval.

PART 2 - PRODUCTS

2.01 MATERIALS

Concrete: Steel-reinforced, 6000 PSI minimum 28-day compressive strength.

Reinforcing Steel: ASTM A615, grade 60 or ASTM A185, grade 80 unless otherwise indicated.

Post-tensioning Strand: 41K Polystrand CP5O, .50, 270 KSI, 7-wire strand, greased plastic sheath, (ASTM A416), roof and floor to be each post-tensioned by a single, continuous tendon.

Said tendon shall form a substantially rectangular configuration having gently curving corners and a corner where the tendon members are anchored. Tendons shall be greased and enclosed within a sheath.

If post-tensioning is not used in the roof panel, the following guidelines must be followed to ensure a watertight roof design.

The entire pre-cast concrete roof panel surface must be cleaned and primed with a material that prepares the concrete surface for proper adherence to the coating material.

The entire pre-cast concrete roof panel surface shall be sealed with a .045 EPDM continuous membrane cemented to the concrete with a compound designed for this purpose.

Caulking: All joints between panels shall be caulked on the exterior and interior surface of the joints. Caulking shall be SIKAFLEX-IA elastic sealant or equal. Exterior caulk joint to be 3/8" x 3/8" square so that sides of joint are parallel for correct caulk adhesion. Back of joint to be taped with bond breaking tape to ensure adhesion of caulk to parallel sides of joint and not the back.

Vents: Two screened aluminum vents to be in rear wall. Vents shall be SUNVENT #164FL, or equal.

Panel Connections: All panels shall be securely fastened together with 3/8” thick steel brackets. Steel is to be of structural quality, hot-rolled carbon complying with ASTM A36 and hot dipped galvanized after fabrication. All fasteners to be 1/2" diameter bolts complying with ASTM A307 for low-carbon steel bolts. Cast-in anchors used for panel connections to be Dayton- Superior #F-63, or equal. All inserts for corner connections must be secured directly to form before casting panels. Floating of connection inserts will not be allowed.

2.02 ACCESSORIES

Door and Frame: Shall comply with Steel Door Institute "Recommended Specifications for Standard Steel Doors and Frames” (SDI-l00), and as herein specified. The building shall be equipped with double 3'-0"x 10'-0" x 1-3/4", 18-gauge steel doors, with insulated core and galvanized. Doors shall open outwards. Frames shall be 16-gauge galvanized steel.

Doors and frames shall be painted with one coat of rust inhibitor primer and one finish coat of epoxy paint, medium gray, if no other color is specified.

Door Hardware:

Install awning above door.

Handle: Lindstrum pull-handle stainless steel, 8-1/2” x 2”, or passage knob or equal.

Lockset: Schlage lever lock.

Deadbolt: Schlage stainless steel keyed outside only or equal.

Door Hardware (con’t)

Hinges: Hagar stainless steel five knuckle ball bearing with non-removable pins or equal.

Threshold: Hagar or National Guard Products extruded aluminum with neoprene seal or equal.

Drip Cap: Hager or National Guard Products aluminum with stainless steel screws or equal.

Door Closer: Norton 7500 or Yale 4410 with hold open or equal.

Surface Bolts (Upper and Lower): Magnokrom Inc. 400-401 cadmium plated finish or equal, as required for double doors.

Astragal: Galvanized steel, same finish and brand as door, as required for double doors.

Door Stop: Ives 445B26D brushed chrome (inactive leaf only) or equal, as required for double doors.

2.03 FINISHES

Painted colors to be determined upon order.

Paint ESTA on roof of 14’ X 14’ x 14’ bunkers (one letter per bunker).

Building: Interior and exterior wall surface shall be concrete (smooth concrete). Smooth steel form finish on all interior panel surfaces. Paint all interior surfaces to TBD color.

Aggregate must be seeded into top of panel while in form, chemically retarded, and high-pressure water-washed to expose the aggregate to a depth of 1/8". As noted on drawings.

2.04 Special Requirements

2.04.1 Provide one (1) 72” wide 3-hour fire rated 18 ga. steel double door with 16 ga. steel frame with standard hardware.

2.04.2 Dead bolt lock with pull handle, S.S. tamperproof hinges, door closer with hold open capability on all doors.

2.04.3 Extruded aluminum threshold with weather strip and 3" Hager or National Guard drip cap over doors.

2.04.4 Furnish (4) hot-dip galv. anchor angles/plates with bolts and drop in anchors.

NOTE: Anchors are to be bolted to the lifting embeds in the floor slab and the S.S. drop-in anchors (2 per anchor) are to be drilled and installed in the foundation by the contractor.

2.04.5 Provide three (3) through holes. 3” diameter, for electrical cables, data line, a single 2’ X 3’ steel reinforced feed through will also be provided with bolt holes to fasten plates on both sides.

2.04.6 Provide 1 pass through near double door to facilitate a 1” water line for sprinkler and water connections inside building.

2.04.7 Provide two (2) 8"x17" SUNVENT #178 aluminum louvers with Dayton #4C558 gravity dampers.

Electrical

2.04.8 Qty. of Six (6) - 110VAC, 20-amp quad outlets shall be provided inside the building with 1 quad outlet on each interior wall. All outlets shall be properly wired GFCI type outlets.

2.04.9 Two (2) 208VAC, 50 amp 3Ø outlet to be provided inside building on wall farthest from double doorway. One in each corner.

2.04.10 One (1) wall mounted Corrosion Resistant Air Conditioner/Heater sufficient to keep the interior at a constant temperature/humidity. (75°F ± 5°F with approx. 50% humidity ± 10%.)

2.04.11 One (1) thru the wall, manually controlled exhaust fan, min 350 CFM.

2.04.12 Provide grounding to facility exterior and provide a ground buss in the interior of the building.

2.04.13 Lighting shall be LED, capable of producing at least 100 Candlepower at 30” AFF on work surface with a wall mounted switch just inside the 36” doorway.

2.04.14 Freight to NASA/JSC, - Houston, TX.

Other: Repaint and re-roof coat two (2) 14’ X 14’ X 14’ existing bunkers to match new buildings.

Delivery

2.05.01 Delivery to be made on or before September 15, 2021.

2.05.02 Notification of exact delivery date and total weight of finished building must be made by email or phone at least 1 week in advance to provide NASA time to arrange for rigging to offload and set in place.

Shipping, Preservation and Packaging Requirements.

2.06.01 Freight to NASA/JSC, - Houston, TX.

2.06.02 Crane, rigging and rigger to off-load and set test cell on level existing concrete structures.

2.06.03 Crane and truck must be able to set up 50’, or greater, away from the foundation with no overhead obstructions. Crane support mats will be needed to be provided from the main access road to the off-load location.

2.06.04 Provide grounding to facility exterior and provide a ground bus in the exterior of the building.