08_31_13_-_Horizontal_Access_Doors.pdf

United States Air Force Academy Repair HTHW Phase 1/4

HORIZONTAL ACCESS DOORS 08 31 13 - 1

(12145-3)

SECTION 08 31 13 – HORIZONTAL ACCESS DOORS

PART 1 - GENERAL

1.1 SUMMARY

A. Work included: Furnishing and installing factory fabricated vault access doors

B. Related Work: Division 3 Section “Cast-In-Place Concrete”.

1.2 REFERENCES

A. American Society for Testing and Materials (ASTM), 100 Bar Harbor Drive, West Conshocken, PA 19428-2959; (215) 299-5400, fax (215) 977-9679

1. ASTM A 36-93a: Standard Specification for Structural Steel

1.3 SUBMITTALS

A. Product Data: Provide manufacturer’s product data for all materials in this specification.

B. Shop Drawings: Show profiles, accessories, location, and dimensions.

C. Contract Closeout: Vault access door manufacturer shall provide the manufacturer’s Warranty prior to the contract closeout.

1.4 PRODUCT HANDLING

A. All materials shall be delivered in manufacturer’s original packaging.

B. Store materials in a dry, protected, well-vented area. The contractor shall thoroughly inspect product upon receipt and report damaged material immediately to delivering carrier and note such damage on the carrier’s freight bill of lading.

C. Remove protective wrapping immediately after installation.

1.5 SUBSTITUTIONS

A. Proposals for substitution products shall be accepted only from bidding contractors and not less than (10) working days before bid due date. Contractor guarantees that proposed substitution shall meet the performance and quality standards of this specification.

1.6 JOB CONDITIONS

A. Verify that other trades with related work are complete before installing vault access door(s).

B. Mounting surfaces shall be straight and secure; substrates shall be of proper width.

HORIZONTAL ACCESS DOORS 08 31 13 - 2

(12145-3)

C. Refer to the construction documents, shop drawings, and manufacturer’s installation instructions.

D. Observe all appropriate OSHA safety guidelines for this work.

1.7 WARRANTY/GUARANTEE

A. Manufacturer’s standard warranty: Materials shall be free of defects in material and workmanship for a period of (25) twenty-five years from the date of purchase. Should a part fail to function in normal use within this period, manufacturer shall furnish a new part at no charge.

Electrical motors, special finishes, and other special equipment (if applicable) shall be warranted separately by the manufacturers of those products.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. The BILCO Company, P.O. Box 1203, New Haven, CT 06505; 1-203-934-6363, Fax: 1-203- 933-8478, Web: www.bilco.com

2.2 ACCESS DOOR

A. Furnish and install where indicated on plans vault access door Type J-2AL H20, size width 30” x length 30”. Length denotes hinge side. The vault access door shall be single leaf. The vault access door shall be pre-assembled from the manufacturer.

B. Performance characteristics:

1. Cover: Shall be reinforced to support AASHTO H-20 wheel load with a maximum deflection of 1/150th of the span. Manufacturer to provide structural calculations stamped by a registered professional engineer upon request. (Note: For installation in an off-street location where not subject to high density, fast moving traffic.)

2. Operation of the cover shall be smooth and easy with controlled operation throughout the entire arc of opening and closing.

3. Operation of the cover shall not be affected by temperature.

4. Entire door, including all hardware components, shall be highly corrosion resistant.

C. Cover: Shall be 1/4” aluminum diamond pattern.

D. Frame: Channel frame shall be 1/4” extruded aluminum with bend down anchor tabs around the perimeter.

E. Hinges: Shall be specifically designed for horizontal installation and shall be through bolted to the cover with tamperproof Type 316 stainless steel lock bolts and shall be through bolted to the frame with Type 316 stainless steel bolts and locknuts.

F. Drain Coupling: Provide a 1-1/2” drain coupling located in the right front corner of the channel frame.

G. Lifting mechanisms: Manufacturer shall provide the required number and size of compression spring operators enclosed in telescopic tubes to provide, smooth, easy, and controlled cover

HORIZONTAL ACCESS DOORS 08 31 13 - 3

(12145-3) operation throughout the entire arc of opening and to act as a check in retarding downward motion of the cover when closing. The upper tube shall be the outer tube to prevent accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube shall interlock with a flanged support shoe fastened to a formed 1/4” gusset support plate.

H. A removable exterior turn/lift handle with a spring loaded ball detent shall be provided to open the cover and the latch release shall be protected by a flush, gasketed, removable screw plug].

I. Hardware:

1. Hinges: Heavy forged Type 316 stainless steel hinges, each having a minimum 1/4” (6.3

mm) diameter Type 316 stainless steel pin, shall be provided and shall pivot so the cover does not protrude into the channel frame.

2. Cover shall be equipped with a hold open arm which automatically locks the cover in the open position.

3. Cover shall be fitted with the required number and size of compression spring operators. Springs and spring tubs shall be Type 316 stainless steel.

4. A Type 316 stainless steel snap lock with fixed handle shall be mounted on the underside of the cover.

5. Hardware: Shall be Type 316 stainless steel throughout.

J. Finishes: Factory finish shall be mill finish aluminum with bituminous coating applied to the exterior of the frame.

PART 3 - EXECUTION

3.1 INSPECTION

A. Verify that the vault access door installation will not disrupt other trades. Verify that the substrate is dry, clean, and free of foreign matter. Report and correct defects prior to any installation.

3.2 INSTALLATION

A. Submit product design drawings for review and approval to the architect before fabrication.

B. The installer shall check as-built conditions and verify the manufacturer’s vault access door details for accuracy to fit the application prior to fabrication. The installer shall comply with the vault access door manufacturer’s installation instructions.

C. The installer shall furnish mechanical fasteners consistent with the vault access door manufacturer’s instructions.

END OF SECTION 08 31 13

J. Finishes: Factory finish shall be mill finish aluminum with bituminous coating applied to the exterior of the frame.