GLADWIN GRANDSTAND SPECIFICATIONS - 10-24-23.docx
DOCX document 27 KB Posted
- Attached to
- Stadium Bleachers
- Solicitation number
- RFP - GLAD - 240000000276
- Issued by
- Gladwin County, Michigan
About this file
This document is the specifications for a permanent steel grandstand project for Gladwin High School in Gladwin County, Michigan. The project consists of a permanent steel grandstand structure with a galvanized steel substructure, aluminum interlock moisture controlled closed deck system, and related components. The grandstand will have a total of 1,182 seats across 10 rows with a 210-foot total bank length, a 48-inch elevated front walkway, and two sets of stairs. The specifications outline the required qualifications for the manufacturer and installer, the submittal requirements, applicable building codes, warranty information, and maintenance responsibilities. The materials, fabrication, and installation requirements are detailed, including design loads, steel and aluminum component specifications, and quality control measures. The contract opportunity is for the Gladwin County jurisdiction in the state of Michigan.
The document does not include pricing terms, set asides, or funding information. It focuses on the technical specifications for the grandstand structure and related components. Bidders must be experienced manufacturers who can provide a list of similar projects completed in Michigan within the last three years. The contract will be awarded based on the bidder's ability to meet the stated technical and qualifications requirements.
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Other files
| File | Type | Posted |
|---|---|---|
| GLADWIN HIGH SCHOOL ALTERNATE BLEACHER SPECIFICATIONS.docx | DOCX document | |
| Gladwin HS - PRESS BOX spec (1).docx | DOCX document | |
| Gladwin HS Bid Drawing 10-24-23.pdf | ||
| Base Bid Design.pdf | ||
| Coaches Pressbox.pdf | ||
| Main Press Box.pdf | ||
| GLADWIN HIGH SCHOOL PRESSBOX SPECIFICATION.docx | DOCX document | |
| Gladwin Press Box Drawing.pdf |
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Text version
SECTION 13125
GLADWIN HIGH SCHOOL
PERMANENT LEG TRUSS DESIGN
PART 1 - GENERAL
1.01 SYSTEM DESCRIPTION
A. Provide labor, material, equipment and supervision necessary to complete installation of permanent steel grandstands including the following:
| 1. | Galvanized steel substructure for bleachers |
| 3. | Aluminum interlock moisture controlled closed deck system |
| 4. | Thickened Concrete slab to be designed by bleacher manufacturer |
B. Minimum equipment to be supplied:
1. Permanent Leg Truss design understructure as shown on drawings
2. 13” rise 26” tread spacing
3. 10 rows
4. 210’ total bank length
5. Front walkway elevated 48”
6. Surface mounted seat support brackets
7. Concealed plank mounting hardware.
9. Two sets of stairs as shown on drawings
10. Provide one Portal Ramp with 10 wheelchair spaces as shown
11. Black vinyl clad chain link fence at guard rails
12. 1182 Total Seats
1.02 QUALITY ASSURANCE
A. Manufacturer Qualifications: Manufacturers must prove to have contracted and provided the design, manufacture, and installation of bleachers/grandstands as current business organization for a minimum of 5 years. Bidders must include a list of 5 similar projects completed within the State of Michigan within the past 3 years with their bid. Welders must be AWS certified. Manufacturer to be AISC certified.
B. Installer Qualifications: 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 sealed by a Michigan registered engineer and shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the applicable code and relevant laws.
| C. | Certificates: |
| 1. | Insurance Certificate |
| 2. | Bid Bond (If required) |
D. Product Sample: Submit one 18-inch seat sample.
E. Color Sample: For painted risers, manufacturer's standard colors
1.04 SITE CONDITIONS
| A. | Field Site: |
| 1. | Owner to make site accessible. |
| 2. | Owner to verify site locations, benchmarks. |
B. Underground Utility Line: Owner to clearly mark all underground utilities and obstructions and Owner to relocate all that conflict with grandstand.
C. Soil Test: Furnished by Owner.
1.05 BUILDING CODES
A. Must meet or exceed all State and Local applicable codes and in compliance with the IBC 2012 and Federal ADA 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 any other defects resulting from abnormal use in service, accidental or intentional damage or any occurrences beyond Manufacturer's control.
1.07 MAINTENANCE
A. Owner is to conduct annual inspection and required maintenance of grandstand to ensure safe conditions. It is also recommended that a professional engineer or registered architect perform inspections biennially.
PART 2 - PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS
A. Southern Bleacher Company (800) 433-0912. Leg Truss Design.
Basis of design
B. Other manufacturers seeking approval to bid must submit product literature on Leg Truss design and deck system to the Owner/Architect for review and receive approval 7 days prior to bidding. Bidder must also provide a list of a minimum of of five similar projects contracted and completed within the state of Michigan within the last three years. Approval does not relieve manufacturer of providing the minimum criteria specified above.
2.02 PERMANENT STEEL GRANDSTAND
A. Product Description
1. Leg Truss Design: Net seating capacity of 1182 per project drawings
2. Vertical columns are placed 6 feet on center laterally.
3. Stringers: Stringers are wide flange with steel angle rise and depth fabrication and are placed at 6 feet on center.
| 4. | Front Walkway: |
| a. | Clear width 60 inches. |
| b. | Elevated 48 inches above grade at benchmark. |
| 5. | Entry stairs to be firmly anchored to uniformly poured concrete bases. |
| a. | Stair rise: 6 1/2” inches with aluminum closure and contrasting aluminum stair nose. |
| b. | Stair tread depth:12 inches. |
| c. | Guardrails: As required by code. |
| d. | 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 crosssectional dimension or the shape shall provide an equivalent gripping surface. The handgrip portion of handrails shall have a smooth surface with no sharp corners. 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. Where handrails are not continuous between flights, the handrails shall extend horizontally at least 12 inches beyond the top riser and continue to slope for the depth of one tread beyond the bottom riser. Ends shall be returned or shall terminate in newel posts or safety terminals. |
| 6. | Aisles: |
| a. | Aisles with seating on both sides to have discontinuous mid-aisle handrails. The handrails shall be discontinuous with breaks at intervals not to exceed five rows. These breaks shall have a clear width of at least 22 inches and not greater than 36 inches horizontally. |
| b. | Anodized aluminum handrails with rounded ends to be provided with an intermediate handrail below the main handrail. |
c. Aluminum tread nosing of contrasting color on aisle steps.
d. Closed aluminum ½ steps to be provided at all aisles per code.
| 7. | Decking system: |
| a. | Rise per row 13 inches, depth per row 26 inches. |
| b. | Each seat 17 inches above its respective tread. |
| c. | Interlock closed moisture controlled aluminum decking design |
d. Provide secondary gutters at all butt seams of tread planking with double stringers for proper support of treads and gutters. Gutters to terminate as shown on drawings.
e. At all butt joint locations to have two internal splices per plank.
f. Seating Selection:
(1) Anodized Aluminum Bench Seat 2” x 10” nominal
8. 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 corner. All guardrails shall be secured to angle rail risers by galvanized fasteners. Railing shall be at heights as required by code for its location on the grandstand. Guard railing shall include intermediate railing, and Black vinyl clad chain link fencing fastened in place with galvanized fasteners and aluminum ties.
9. Cross Aisle: Clear width 60 inches.
| 10. | Ramps: |
| a. | Slope: 1 in 12. |
b. Guardrails: As required by code plus toe board.
c. Handrail: Ramps to have handrail extension. The handgrip portion of handrails shall not be less than 1 1/2 inches or more than 2 inches in crosssectional dimension or the shape shall provide an equivalent gripping surface. The handgrip portion of handrails shall have a smooth surface with no sharp corners. The top of handrails and handrail extensions shall be placed not less than 34 inches or more than 38 inches above the ramp surface. Where handrails are not continuous between runs, the handrail shall extend horizontally above the landing 12 inches minimum beyond the top and bottom ramps. Ends shall be returned or shall terminate in newel posts or safety terminals.
| 11. | Handicap provision: |
| a. | Quantity of wheelchair spaces: 10 |
| b. | Riser area adjacent to wheelchair spaces to have intermediate construction so 4 inch sphere cannot pass through opening. |
| B. | Materials/Finishes |
| 1. | Substructures: |
| a. | Structural shapes meet one of the following ASTM specifications: A36, A36/A572 grade 50, A572 grade 50, A529-50, or A500 grade B. |
| b. | Shop connections are seal welds. |
| c. | After fabrication, all steel is hot-dipped galvanized to ASTM-A-123 specifications. |
| 2. | Extruded Aluminum: |
| a. | Seat Planks, and Railing are extruded aluminum alloy, 6063-T6. Clear anodized 204R1, AA-M10C22A31, |
| b. | Tread Planks: Extruded aluminum alloy, 6063-T6 mill finish. |
c. Riser & facade planks to be aluminum alloy 6063-T6. Kynar painted from manufacturer's standard colors. Powder coating is unacceptable unless it carries a 15 year no fade warranty.
| 3. | Accessories: |
| a. | Channel End Caps: Aluminum alloy 6063-T6, clear anodized 204R1, AA-M10C22A31, Class II. |
| c. | Hardware: |
| (1) | Bolts, Nuts: Hot-dipped galvanized or mechanically galvanized. |
| (2) | Hold-down Clip Assembly: Aluminum alloy 6005A-T6, mill finish. |
| (3) | Structural Hardware: Equal to or greater than hot-dipped galvanized ASTM-A307. No connections utilizing high strength bolts are classed as slip critical. |
| d. | Aisle Nose and Stair Nose: Aluminum alloy, 6063-T6, non-skid black powder coated finish or other paint system meeting AAMA 603.8-92 specifications with a hardness rating of 2H. |
| C. | Fabrication: |
| 1. | Design Load: |
a. Tread and Seat Area: 100 psf uniform live load.
b. Seat (Vertical): 120 lbs/lf.
c. Seat (Horizontal Sway): 24 lbs/lf parallel and 10 lbs/lf perpendicular to seat.
| d. | Handrail and Guardrail: 50 lbs/lf in any direction. | |
| e. | Handrail and Guardrail: 200 lbs concentrated in any direction. | |
| f. | Snow Loads: | As per State adopted code. |
g. Wind Loads: As per State adopted code.
h. Seismic Loads: As per State adopted code.
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 technicians experienced in bleacher seating installation.
B. Project as per approved shop drawings.
3.02 FIELD QUALITY CONTROL
A. Foundation: Concrete foundations for the grandstand shall provide sufficient bearing area to support all loads of the grandstand. Depth and design of the footings and slabs shall be engineered in accordance with owner supplied soil report. Concrete shall attain working strength of 3,000 psi. Anchors shall be galvanized steel, imbedded in concrete slab. Assumed soil bearing pressure of 2,000 psf for bidding purposes.
3.03 CLEAN-UP
A. Clean up all debris caused by work of this section.
B. Return site to rough grade after completion of installation
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