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SECTION 13125 -PERMANENT GRANDSTANDS

PART I -GENERAL

1.01 SYSTEM DESCRIPTION

A. Provide design, labor, material, equipment and supervision necessary to complete installation of Permanent steel grandstand, including the following:
1. Steel Substructure
2. Decking System
3. Concrete Foundation
4. Press-Box Support Structure
5. Press-Box
6. Ramps and Stairs

1.02 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturers must have five years of experience in the manufacture of bleachers and grandstands; welders must be AWS certified; manufacturing capability according to various code compliances.
B. Installer Qualifications: Factory-trained and experienced in the proper installation of grandstands.
C. Source Quality Control: Mill Test Certification.

1.03 SUBMITTALS

A. Manufacturer's Product Data: Submit manufacturer's descriptive product data for project.
B. Shop Drawings: Manufacturer to submit shop drawings and design calculations sealed by a registered professional engineer in the State of the project and schedules for type, location, quantity, and details of steel and aluminum components required for project. Submittal of calculations is for determining compliance with specifications and will not be a review of calculations. The submittal does not relieve contractor and engineer from responsibility.
C. Product Sample: Submit one 18-inch seat sample.

1.04 SITE CONDITIONS

A. Owner will verify site location.
B. Owner will locate all underground utilities and obstructions.
C. Owner will furnish geotechnical report indicating soil conditions and allowable soil bearing pressure.
D. Owner will verify grandstand location and benchmark dimensions and elevation.

1.05 BUILDING CODES

A. Codes and Standards: Design, fabrication, and installation shall be in accordance with applicable codes, regulations, and accessibility requirements(ADA). Owner will furnish local code requirements.

1.06 WARRANTY

A. Permanent Grandstand shall be under warranty for a period of one year beginning at Date of Substantial Completion for Projects installed by Manufacturer. The Grandstand is warranted to be free from defect in materials and workmanship in the course of manufacture. This warranty excludes defects resulting from abnormal use in service, accidental or intentional damage, or any occurrences beyond Manufacturer's control.

1.07 MAINTENANCE

A. Owner will conduct inspections and required maintenance of grandstand to assure safe conditions.
Contractor shall instruct Owner's maintenance personnel on inspecting the grandstand and provide detailed instruction of how to inspect and maintain the structure.

PART 2 -PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. The design for the bleacher seating grandstands is based on designs by
Southeastern Seating, Tampa Florida, 800-248-2099
Other manufacturers seeking to be approved must submit product literature on horizontal beam design to the Owner for review and receive approval from Owner seven days prior to bid date.

Site visitation is required prior to bidding this project. Any problems with the site or design that could have been forseen by a site visitation are the responsibility of the contractor.

2.02 PERMANENT STEEL GRANDSTAND

A. Product Description
1. Horizontal Beam Design as shown in drawings.
a. Horizontal Beam Design: Columns placement per contract drawings. All
horizontal beams are hot rolled wide flange beams. Traverse bays are free
of cross bracing at exit ramps, stairs and walkways.
B. Stringers: Stringers are hot rolled wide flange with angle rise and
depth fabrication and are placed at 6 feet on center.
C. Front Cross Aisle:
1) Clear width 72" inches.
2) Elevated above grade as shown on drawings.
D . Entry stairs to be firmly anchored to uniformly poured concrete bases.
1) Stair rise: 6 inches per International Building Code,
2) Stair tread depth: 11 inches per International Building Code.
3) Guardrails on Stair to be 34 inches above leading edge of step with
intermediate rail spacing at 6 inches.
4) Optional: Stairs to have handrail extension. The handgrip portion of
handrails shall not be less than 1 1/2 inches or more than 2 inches in
cross-sectional dimension or the shape shall provide an equivalent
gripping surface. The handgrip portion of handrails shall have a smooth
surface with no sharp comer. The top of handrails and handrail
extensions shall be placed not less than 34 inches or more than 38
inches above the nosing of treads and landings.
Handrails shall be continuous the full length of the stairs and shall
extend in the direction of the stair run not less than 12 inches beyond
the bottom riser.
E. Aisles:
1) Aisles with seating on both sides to have 34-inch high handrail with
intermediate rail at approximately 22 inches above tread.
2) Handrails with rounded ends are discontinuous to allow access to seating
through a space 22 inches (min.) to 28 inches (Max.).
F. Decking:
1) Rise per row SEE DRAWINGS
Depth per row SEE DRAWINGS
2) Each seat 17 inches above its respective tread.
3) Decking Arrangement: SEE DRAWINGS
G . Seating Selection:
1. Aluminum Bench Seat to be 2 x 10 nominal
H. Guard railing: To be at all sides of bleacher, entry stairs and ramps,
portals, and landings. Railing to be anodized aluminum with end plugs at
ends of straight runs and/or elbows at comer. All guardrails shall be
secured to angle rail risers by galvanized fasteners. Railing shall be
42" above walkways and entrances. Railing shall be 42" above any
adjacent aisle surface. Guard railing on sides and back shall include VERTICAL ALUMINUM PICKET SAFETY FENCE
I. Ramps:
1) Slope: 12:1.
2) Guardrail to be 42 inches above ramp with intermediate rail spacing at 4
inches.
3) Lower Ramps at their landings to have handrail extension. The handgrip
portion of handrails shall not be less than 1 1/2 inches or more than 2
inches in cross-sectional dimension or the shape shall provide an
equivalent gripping surface. The handgrip portion of handrails shall
have a smooth surface with no sharp comers. The top of handrails and
handrail extensions shall be placed not less than 34 inches or more than
38 inches above the ramp or landing surface. Handrails shall be
continuous the full length of the ramp and shall extend in the direction
of the ramp not less than 12 inches beyond the end of the ramp.
J . Handicap Provision:
1) Quantity of wheelchair spaces: As shown in drawing
2) Riser area adjacent to wheelchair spaces to have intermediate
construction so a 4 inch (4") sphere cannot pass through opening.

l. Press Box:
A. Provide steel support structure
B. Materials/Finishes:
1) Substructure: Galvanized steel
2) Extruded Aluminum:
a. Seat Planks: Extruded aluminum alloy, 6063-T6: Clear anodized
b. Tread Planks, Riser Planks: Extruded aluminum alloy, 6063-T6 Mill finish
c. Joint Sleeve Assembly to be inserted in flat plank to maintain true
alignment in joining together two plank pieces. Extruded aluminum alloy,
6063-T6, mill finish, Splice cover is unacceptable between two flat
plank pieces joined in a straight line.
3. Accessories:
(1) Bolts, Nuts: Hot-dipped galvanized.
(2) Hold-down Clip Assembly: Aluminum alloy 6061-T6, mill finish.
C. Fabrication:
1. Design Loads:
a. See drawings.
2. All manufactured connections to be shop welded.
a. Manufactured by certified welders conforming to AWS Standards.

PART 3 -EXECUTION

3.01 INSTALLATION

A. All work performed by factory-trained technicians experienced in bleacher seating installation.
B. Project as per approved shop drawings.

3.02 FIELD QUALITY CONTROL

A. Foundation. Drilled shaft foundations for the Grandstand shall provide sufficient bearing area at bottom to support all loads of the grandstand. Depth and design of footings shall be as shown on the drawings. Hot-dipped galvanized anchor bolts shall be set by template and shall be embedded in the concrete foundation as required by manufacturer's design calculations. Concrete shall attain working strength of 3,000 psi at 28 days.

3.03 CLEAN-UP

A. Clean up all debris caused by work of this section.