A0002_Att_9_(New)_35_21_20_-_Stoplog_Guides_0002.pdf

Hyrum Dam Spillway Replacement Hyrum Project, Utah

Stoplog Guides

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SECTION 35 21 20

STOPLOG GUIDES

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Stoplog Guides:

1. Payment: Lump-sum price offered in Price Schedule.

1.02 REFERENCE STANDARDS

A. American Institute of Steel Construction (AISC)

1. AISC 303-22 Code of Standard Practice for Steel Buildings and Bridges

B. ASTM International (ASTM)

1. ASTM A6/A6M-22 Rolled Structural Steel Bars, Plates, Shapes, and Steel Piling

2. ASTM A36/A36M-19 Carbon Structural Steel

3. ASTM A108-18 Steel Bar, Carbon and Alloy, Cold-Finished

4. ASTM A572/A572M-21e1 High-Strength Low-Alloy Columbium- Vanadium Structural Steel

5. ASTM A992/A992M-22 Structural Steel Shapes

6. ASTM F593–22 Stainless Steel Bolts, Hex Cap Screws, and Studs

7. ASTM F594-22 Stainless Steel Nuts

C. American Welding Society, Inc. (AWS)

2. AWS D1.1/D1.1M:2020 Structural Welding Code - Steel

1.03 DELIVERY, STORAGE, AND HANDLING

A. Ship, handle, and store in a manner to prevent permanent deflection, distortion, or other damage. Any tie downs used during shipment to be positioned in a manner as not to deform the materials being shipped. Use of chains for hold down will not be permitted.

B. Protect equipment from corrosion, deformation, and other types of damage.

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PART 2 PRODUCTS

2.01 MATERIALS

A. Structural Steel: ASTM A36.

1. At a no cost option to the government, Contractor may substitute, ASTM A992 or ASTM A572 Grade 50 steel for ASTM A36 steel.

B. Fasteners:

1. Bolts: Stainless Steel, ASTM F593.

2. Nuts: Stainless Steel, ASTM F594

3. Washers: Stainless Steel type 304 or 316.

C. Headed Anchors:

1. ASTM A108.

2. Flux-filled stud anchors for end welding to steel with automatic end welding guns or equivalent manually welded anchors.

2.02 FABRICATION

A. Fabricate stoplog guides in accordance with these specifications and as detailed on drawings 188-D-60371 and 188-D-60372.

B. Details of fabrication in accordance with AISC 303 and ASTM A6 for structural steel.

C. Welds shall be in accordance with the applicable requirements of AWS D1.1 for steel members.

2.03 FINISHES

A. Coat in accordance with Section 09 96 20 - Coatings.

2.04 CONTRACTOR QUALITY CONTROL TESTING

A. After fabrication, completely assembly the stoplog guides in the shop and inspect to ensure that the required dimensions and tolerances have been obtained.

PART 3 EXECUTION

3.01 INSTALLATION

A. Embed the stoplog guides as shown on drawings 188-D-60371 and 188-D-60372 and in accordance with the installation tolerances. Properly support metalwork during embedment.

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B. Embedded Metalwork:

1. Before placing concrete, clean surfaces of metalwork to be in contact with or embedded in concrete in accordance with Section 09 96 20 – Coatings.

2. Properly support metalwork during embedment.

3. Ensure metalwork to be embedded is not in contact with rebar.

4. Accurately locate metalwork to be embedded in concrete. Hold metalwork in correct position and alignment and protect from damage and displacement during placing and setting of concrete.

5. Unless otherwise specified, use only metal braces, supports, and other items to position and align embedded metalwork, which will be embedded in concrete. Do not use wooden braces, supports, or other items to position and align embedded metalwork if they also will be embedded in concrete.

C. Provide all fasteners and other appurtenances of the equipment, as shown on the drawings, as necessary for a complete and functional installation.

D. Make required changes or adjustments to the satisfaction of the COR.

E. After final installation, repair any damaged coatings.

END OF SECTION

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