14-Sec 03 20 00 - CONCRETE REINFORCEMENT.pdf
PDF 64 KB Posted
- Attached to
- 2201256.01 - Whistlestop Park
- Solicitation number
- US.160528
- Issued by
- Montgomery County, Pennsylvania
About this file
This is a technical specifications document for concrete reinforcement work, applicable to the Whistlestop Park project being procured by Montgomery Township in Pennsylvania. The specification section 03 20 00 establishes requirements for reinforcing steel bars, wire fabric, and accessories for cast-in-place concrete work. The document requires compliance with multiple industry standards including ACI 301, ACI 318, ASTM A615 (deformed billet steel bars at 60 ksi yield grade), ASTM A185 (welded steel wire fabric), ASTM A775 (epoxy-coated reinforcing steel), and CRSI guidelines for placement and bar support practices. Design reinforcement must be performed under the direct supervision of a Professional Structural Engineer licensed in Pennsylvania. The specification mandates that all welders on the work must hold current AWS certifications within the previous 12 months, with certificates required for submittal. Reinforcing steel must be ASTM A615 deformed billet steel in unfinished condition, supplemented by ASTM A185 welded steel wire fabric. All accessories including tie wire, chairs, bolsters, and bar supports must be appropriately sized and shaped, with plastic-coated steel types required adjacent to weather-exposed concrete surfaces to prevent corrosion and degradation.
The specification requires strict adherence to placement procedures as outlined in CRSI standards 63 and 65, with reinforcement secured against displacement and positioned precisely per design drawings. Reinforcing splices must be located at points of minimum stress. Concrete cover over reinforcement must conform to ACI 318 code requirements. The contractor must maintain documentation on-site, provide the Engineer access to fabrication plants for inspection purposes, and submit advance notice of shop fabrication commencement and duration. All work must be performed in accordance with ACI 301 standards for structural concrete construction.
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Text version
CONCRETE REINFORCEMENT
03 20 00-1
SECTION 03 20 00
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Reinforcing steel bars, wire fabric and accessories for cast-in-place concrete.
1.02 RELATED SECTIONS
A. Related Work Specified Elsewhere.
1. This section not used.
1.03 REFERENCES
A. ACI 301 - Structural Concrete for Buildings.
B. ACI 318 - Building Code Requirements for Reinforced Concrete.
C. ASTM A185 - Welded Steel Wire Fabric for Concrete Reinforcement.
D. ASTM A615 - Deformed and Plain Billet Steel Bars for Concrete Reinforcement.
E. ASTM A775 - Epoxy-Coated Reinforcing Steel Bars.
F. ASTM D3963 - Epoxy-Coated Reinforcing Steel.
G. CRSI - Concrete Reinforcing Steel Institute - Manual of Practice.
H. CRSI 63 - Recommended Practice for Placing Reinforcing Bars.
I. CRSI 65 - Recommended Practice for Placing Bar Supports, Specifications and Nomenclature.
1.04 SUBMITTALS FOR REVIEW
A. Section 01 33 00 - Submittals: Procedures for submittals.
1.05 QUALITY ASSURANCE
A. Perform Work in accordance with CRSI 63, 65 and Manual of Practice, ACI 301, and ACI 318.
Maintain one copy of each document on site.
B. Provide Engineer with access to fabrication plant to facilitate inspection of reinforcement. Provide notification of commencement and duration of shop fabrication in sufficient time to allow inspection.
C. Design reinforcement under direct supervision of a Professional Structural Engineer experienced in design of this Work and licensed in the Commonwealth of Pennsylvania.
D. Welders: Certificates: Submit under provisions of Section 01 40 00 Manufacturer’s Certificates, certifying welders employed on the Work, verifying AWS qualification within the previous 12 months.
PART 2 PRODUCTS
2.01 REINFORCEMENT
A. Reinforcing Steel: ASTM A615, 60 ksi yield grade; deformed billet steel bars, unfinished.
B. Welded Steel Wire Fabric: ASTM A185 Plain Type in flat sheets, unfinished.
03 20 00-2
2.02 ACCESSORIES
A. Tie Wire: Minimum 16 gage annealed type, epoxy coated.
B. Chairs, Bolsters, Bar Supports, Spacers: Sized and shaped for strength and support of reinforcement during concrete placement conditions.
C. Special Chairs, Bolsters, Bar Supports, Spacers Adjacent to Weather Exposed Concrete Surfaces: Plastic coated steel type; size and shape as required.
2.03 FABRICATION
A. Fabricate concrete reinforcing in accordance with CRSI Manual of Practice.
B. Locate reinforcing splices not indicated on drawings, at point of minimum stress.
PART 3 EXECUTION
3.01 PLACEMENT
A. Place, support and secure reinforcement against displacement. Do not deviate from required position.
B. Do not displace or damage vapor barrier.
C. Accommodate placement of formed openings.
D. Conform to Act 318 code for concrete cover over reinforcement.
END OF SECTION
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